US1497001A - Drawing press - Google Patents

Description

Julie 10, 1924. 1,497,001

. w. s. ROTHERHAM DRAWING PRES S Filed Jan. 19, 1921 7 Sheets-Sheet 1 W Rather/m w @5 hi! auto M4013 June 10, 1924.

w. s. ROTHERHAM' DRAWING PRESS Filed Jan. 19 1921 7- Sheets-Sheet 2 14 6'. R07 her/1am; wuemtoz Jun l0 1924. v

W. S. ROTHERHAM DRAWING PRESS 19 1921 7 Sheets-Shed 5 Filed Jan.

Fume 10 1924,. 1,497,001

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@51 77/6 abliom wq v W. S. ROTHERHAM June 10 1924.

DRAWING PRES S Filed Jan; 19, 1921 7 Sheets-Sheet 6 avweuto'b 144 6. Raf/verbal m, @51 5/ abtmq WALTER S. ROTHERHAM, 0F POMPT'O'N LAKES, NEW JERSEY, ASSIGNOR TO E. DU PONT DE NEMOURS & COMPANY, OFWILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

DRAWING PRESS.

Application filed January 19, 1921. Serial No. 438,400.

To all whom it may concern:

Be it known that I, WALTER S. RorHER- HAM, a citizen of the United Statesyand a resident of Pompton Lakes, in the county of Passaic and State of New Jersey, have invented a certain new and useful Drawing Press, of which the following is a specification.

V This invention relates to presses for drawing metal articles by forcing the same through dies to work the articles into desired form. More particularly, the inven tion relates to a press for drawing cylindrical shells, increasing their lengths at the expense of their diameters. Since the illustrated press has been found particularly useful in the drawing of copper shells for blasting caps, I describe it with more particular reference to that art, but it will be understood that I do not restrict it thereto.

Blasting caps are used to detonate high explosive charges. A shell about two inches long and one quarter inch in diameter, as drawn by the preserit'press from a 'cup about three-eights inch long by one-half inch in diameter, the shell as produced by the press having a closed bottom and open top, is loaded with a sensitive and violent explosive, for example, fulminate of mercury, and a fuse is inserted in the open end of the loaded shell, or cap, and the'cap is placed in close relation to the charge of high ex-. plosive. The explosion of the cap gives the shock and heat necessary to cause detonation of the charge.

With the shells destined for uses such as outlined, they must, to meetcompetition, be produced in large quantities, at relatively low cost, and of uniform dimensions. The

present press provides for such production.

One object of the invention is to provide a drawing press having a series of dies of Another object is to provide a drawing press in which shells of comparatively great length canbe completely. drawn, from the cup to the fully drawn shell, in a continuous operation uninterrupted by annealing between the draws.

Another object is to provide an article shifting mechanism for drawing presses.

Another object is to'provide an article feeding mechanism for drawing presses. To these ends, and also to improve generally upon devices of the character indicated, my invention consists in the various matters hereinafter described and claimed. Without restricting my invention thereto I describe it by reference to the drawing press illustrated in the accompanying drawings. The various figures of the drawings except Figure 1, have more particular relation to the right hand half of the machine as illustrated in Figure 1; in the figures relating to the drawing portions of the press the parts are shown substantially as they appear when the shell-shifting slide is at the limit of its forward travel, the dwell is occurring and drawing substantially taking place, except that in Figures 1 and 2 the plunger holder has been raised without disturbing the other parts, so as to the better show the plungers. In the drawings Figure 1 is a front view of the press, somewhat elementary in character and with various details omitted; I

Figure 2 is an end view looking in the direction of the arrow 2, Figure 1;

Figure 3 is a plan view looking in the direction of the arrow 3, Figure 1 Figure 4 is a longitudinal sectional view substantially on line 4+4 of Figure 3; Figure 5 is a cross-sectional view substantially on the line 5-5 of Figure 3;

Figure 6, is a bottom plan view of one of the cam slides, the lower or front one as v is a face View of the feeding disc Figure 10 is an edge view of the parts related to the feeding disc looking in the direction of the arrow 10, Figure 8, and

Figure 11 is an enlarged fragmental section view through the feed disc substantially on line 1111 of Figure 8, looking radially outward from' the centre of the disc, and showing the carrier in normal, untripped, position.

The illustrated press comprises two press units, A and 1B, fed from a common hopper H by the feeding mechanisms designated generally as A and B Since the units A and 1B are alike, i. e. rights and lofts, and their mechanisms A and B alike, I shall describe more, particularly the unit A and its mechanism A, the description suflicing for the unit 18 and its mechanismB and, first, ll shall describe those portions of the unit A which act upon the cups to draw them and to shift them, and, next shall describe the feeding mechanism A for feeding the cups from the hopper to the drawing andshifting parts of the unit A.

The frame 1 carries a series of dies or matrices 2 into each of which in turn a specified cup is introduced and is partially drawn. The dies are of decreasing diametors in the direction of travel.of the cups from left to right'(Fig. 4) and are sufiicient in number to provide for the complete drawing of the cups into shells with the amount of drawing at each die sufficiently small to insure that the partially drawn shells will not have to be annealed between one draw and the next, the present machine having six dies. A series of plungers 3 is carried by the reciprocating plunger holder 4, for entering the dies to force the shells into the dies and draw them. The cups to be drawn are fed from the pipe 5 at the left, open end up and one at a time, and lie on the rest there-below until transported to the dies.

For forcing the partially drawn shells upward out of the dies, after they have been forced into the same by the plungers 3, there is provided a series of ejectors 6 (Fig. 4), one for each die except the last, 2 -These ejectors, or pins, 6 are urged to lowered position by springs 7 expanding between abutments 8 and 9 on the machine frame and pins respectively, but are raised by the cams 10, in proper timed relation to the rising of the plungers. The cams are carried onthe rotating shaft 11 (Figs. 2 and 1) and are operatively associated with the pins 6 by the levers 12 oscillatably mounted on the machine frame at 12 and each having a nose 13 disposed between its co-related cam 10 and ejector 6. The partially drawn shells, as they, followed by the ejectors 6, rise from the dies 2, rest above the dies, there being provided stripper plates 14C (Fig. 4) carried by a block 15 on the bed 16 and each provided with an aperture 17 through which the related plunger reciprocates bringing the shellin contact with the lower side of the plate to strip the shell from the plunger; similarly with the scrap, which rises with the last of the plungers. 'The shells, after being transported (as cups) from below the pipe 5 to the first die 2 and shifted from die to die, by the mechanism to be described next below, are passed through the last die, 2 at the right and discharged through the outlet 18, the relative dimensions of the last die and its plunger providing for the shell not being carried upward with the plunger on its retreat. The scrap, or small ring of metal trimmed from the top of the shell at the last die by the cooperating shoulders 3 (Fig. 1) and 2 (Fig. 4) on the last plunger and die, is moved to the air box or outlet 19, by the just mentioned mechanism, and blown through the-passage 20, by an air blast from the pipe 21.

The mechanism for shifting the cups from belgw the pipe 5 to the first die 2*, shifting the partially drawn shells step-bystep from die to die, and shifting the scrap from the last die, 2 to the air box 19 com-= prises, in general (Figs. 3, 4 and 5) a main or carrying slide, designated generally as 22, for moving the articles, and reciprocated by the cam'23 on the shaft 24:; a series of coupling devices, each shown by way of ex= ample as comprising a pair of coupling units or fingers 25, for coupling the articles to the main slide to be drawn along thereby; means, shown as springs 26, for forcing the couplings into coupling position; and means, here exemplified by cam slides 27, for controlling and determining the positioncoupled or uncoupled-pf the couplings 25, such last-named means being operated by the cams 28-29 on the shaft 24. The coupling devices are mounted on and carried by the main slide; the relative positions of the main slide and the cam slides determine the positions of the coupling devices. Tn operation, the'couplings connect the cup to be drawn, the partially drawn shells, and the scrap, to the main slide; the main slide. moves forward to bring the cm to the first die, each partially drawn shell to a (smaller) die other than that in which it has justbeen drawn, and the scrap to the outlet; the couplings uncouple the articles in their new positions and drawin occurs; and the main slide goes back to original position, ready to repeat the cycle; and so on. As to the more important features of this mechan1sm:

The carrying slide or shifter 22 is, for con venience, composed of two sections 22 and 22 connected by the screw 30 which passes through a bridge piece 31, attached to the sections 22 at 32, and is screwed into the tongue 33 on the section 22*and inserted in the socket 334 in the section 22. The pertoo tion 22 carries rollers 35 and 36 for cooperation with the cam 23 which reciproc'ates the slide 22, the portion 22 being slotted at 37 to permit reciprocation with respect to the shaft 24 which passes through the slot 37 The portion 22*, which carries the couplings 25 and immediately moves the articles, is provided, at each side of a central slot 38, for exposing the dies and permitting the passage of the plungers 3, with a series of coupling-receivin recesses 39. The number of these'recesses 1s sufiicient to provide for a pair of couplings one in excess of the number of dies-in the present case seven pairs. These recesses 39 are oppositely disposed, to provide for the units of a coupling pair being arranged opposi ely, andare spaced longitudinally of the slide, each fromnext, in correspondence with the spacing of the location or position below the feed pipe 5, the dies, and the exit 20 into the air box 19; the parts in the present instance are substantially equi-v distant. In the bottom of each recess 39 is an opening 40 of substantially the contour shown.

A coupling unit 25 is received in each recess 39 for reciprocation backward and forward therein, the units being covered by plates 22 attached to the portion 22*.

Each unit is urged or moved toward the dies 2 by its co-related expanding spring 26 located between the back end of the coupling unit and a wall 41 on the portion 22. The units are recessed at 25 in their forward ends to substantially correspond to one-half of the periphery of the article. The previously referred to unit-controlling cam slides 27, one for each longitudinal series of coupling units, are carried in longitudinal slide-ways 42 located in the bottom of the portion 22 and extending into the portion 22*. Each unit 25 carries on its under side a cam roller 43 located in the previously referred to opening 40. The cam slide 27 (Fig. 6) for cooperation with the units of a specified series lies between the rollers 43 of that series and the dies 2. It has on its roller-facing side a series of cam surfaces 44, each such surface comprising a deep-cut portion 44 and a shallow cut portion 44. Evidently, as the slides reciprocate, when the surfaces 44 are in contact with the rollers 43 the coupling units will be retracted into uncoupled position; and when the surfaces 44 are in contact with the rollers 43, permitting the springs to push the units into forward position, the ends 2") of the units substantially encircle the articles and couple them to the main slide to be drawn along thereby. The cam slides are mated 'to cause all the various units to advance and retreat together. The position of the cam slides 27, and hence the position of the couplings, depends upon the -reciprocation with respect thereto.

relative position of the cam slides and the main silde 22 as they are reciprocated. As previously mentioned, the. cam slides are reciprocated by the cams 2829.

The connection between the cam slides andthe cams 2829 is as follows (Figs. 2, 3 and 4) :The slides extend into the portion 22 of the main slide 22, as indicated at 45, and are connected by pins 46 with cam slide extensions 47. These extensions are slidahly mounted in slide-ways 42 in the upper side of the portion 22*, or main slide extension of the main slide 22. The pins 46 pass through reciprocation-permitting slots 46 in the portion 22 In order that the cam slides shall be moved together they are connected by a plate 48 attached to the slides at 49, the plate being slotted at 50 for passage of the shaft 24 to perniit T e plate carries cam rollers 51 and 52, the roller 51, for cooperation with the upper cam, 28, to give forward, or right-hand, motion to the slides and the other, 52, for cooperation with the lower cam, 29, to give back ward, or left-hand motion.

The contours, and relative motions, of the cams 10 for the ejectors, the cam 23 for the slide 22, and the cams 28-29 for the cam slides, and the reciprocations of the plungers, may be timed 'as desired for proper operation, and I prefer a timing substantially such as that graphically represented in the chart comprising Fig. 7.

I will now briefly describe this chart, and then will briefly review the operation of the press as thus far described, with incidental reference to the chart.

In the chart are shown four curves. I indicates the positions of the main slide, II the positions of the cam slides, III the positions of the ejectors, and IV the positions of the plungers. In curves I and II the lowest portions of the curves represent the initial, or left-hand position of the slides, and distances above those portions represent the distances of the slides away from initial position. In curve III the lowest portion represents the lowest position of the ejectors, and distances above the distances above the lowered position. In

curve IV the rise and fall of the curve repv resents the rise and fall of the plungers. Distances along the horizontal axis indicate .degrees of rotation, all the cams and the Tn operation :-At the beginning of a cycle (a) the various slides are at the extreme left in initial position and the initial dwell beginning. Drawing has previously occurred and the plungers are rising and so are the ejectors. Now the cam-slides move forward (a-b) permitting the couplings to move into coupling position. About at this time the partially drawn shells and the scrap are stripped from the rising plungers and drop between the coupling units (the units not advancing to such a position as to prevent this) and the extreme left-hand couplings encompass the new cup standing below the bottom of the feed pipe, they not advancing suficiently to prevent a cup dropping between them, should the cup be feeding from the pipe. While the initial dwell of the main slide is still continuing (ad) the ejectors completely rise and remain up (0 e) during some of the time in which the main slide is moving to the left (d f) and drawing along the new cup and the partially drawn shells to their new ositions. (It will benoted from the paral el curves that the cam slides and main slide move forward together keeping the couplings in coupling position.) The ejectors are of such length and diameter that, when up, they substantially fill the holes in the dies and lie flush with the tops of the dies thus to present a smooth floor for the shells to slide over as they are drawn forward and are timed to be up and prevent catching of a shell in a die when the forward motion begins.

.When the right hand dwell of the slides is reached (f) and, hence, the newcup has been placed over the first die, and each partially drawn shell over the next die to that in which it has just been drawn (and the scrap has been moved from the last die to the air box) drawing may begin. lit occurs during the dwell, since the plungers descend and rise at this time and draw approximately at 9 say, the ejectors descending (e-h) to not interfere with the drawing. After the drawing, and during the right dwell (7 c') of the main slide, the cam slides are moved to the left (j-k) to move the couplings into retracted position. Then all slides move back (5-41) to initial position (a) completing the cycle. Desirably the travel of the plungers is such that, when the main slide starts to move to the left the shells are not free of the plungers, whereby the plungers hold the shells, and make doubly sure that they will not be carried back by the main slide should the cam slides not yet have caused the couplings to suficiently retreat; in such a case the couplings will slide past the shells, the shells compelling the retreat of the couplings.

In the described arrangement for coupling the articles to the main orcarrying slide it is to be acted that the position and moveiaeaeoi ments of the couplings are determined by positive -meansthe cam slides-thus providing for accuracy and positiveness, and eliminating possibility of harm to the shells. These are results which could not be uniformly obtained were the shells relied upon to normally actuate the couplings.

It will be understood that the cams 2829 are substantially complementary, the contours being such that the cam 29 and roller 52 do not interfere with the moving forward of the cam slides by the cam 28, nor the cam 28 and roller 51 interfere with the moving backward of the cam slides by the cam 29. It will be seen that this double-cam construction gives relatively simple cam surfaces and eliminates the use of a return spring, as compared to a single-cam construction. All the various cams may be contoured substantially as illustrated, indeed in the chart curves T, TT and HT are substantially cam developments.

Having described the drawing parts of the machine T will now explain those parts of the machine, designated enerally as A for feedin the cups from t e hopper H to the feed pipe 5, to be taken from adjacent the bottom thereof by the main slide or shifter and shifted tothe first die. This mechanism feeds cups into the upper end of the pipe in substantial correspondence with the taking of the cups one-by-one from the bottom of the pipe 5. Reference is made to Figures8 to 11 more particularly.

In the side 53 of the hopper H, and practically forming the major portion of the side, is inserted a disc 54 mounted for rotation on the shaft 55 which latter is mounted at 56 in the hopper. This disc 54 in its rotation takes the cups from the hopper and introduces them one-by-one into the top of the feed pipe 5. lit is driven by the gear wheel 57 rotatably mounted on the rear wall of the hopper at 58 and meshing with teeth. 59 on the periphery of the disc. The gear 57 is driven from theshaft 60 (Fig. 1) for example by the crossed belt 61 and wheel 62 though a more complicated driving connection may be used if desired. This shaft 60 is the main drive shaft of the machine. Not only is it belted, at 61, to the disc 54, but also (a) it carries the crank 63 for. driving the plungers 3- (through the connecting rod 64:) and (b) is geared, at 65, to the shaft 24: which carries the cams 23 and 2829, and is geared at 66 to the ejector-driving shaft 11. Thus the feeding disc 54: performs its feeding rotations in timed relation to the plungers, slides and ejectors.

Now to describe the detailed structure which enables the disc 54 to feed the cups to the pipe 5:First, it shall describe the features which enable the disc to feed in its simple uninterrupted manner, substantially ing the disc 54. Throughout the inner peripher of this annulus (except as interrupte by the pipe 5) is a cup channel 68. This channel, for the longer span substantially between the line 02-:0 (Fig. 8) and the line 3/y, i. e. through a large part of its length, is widely open to the interior of the hopper as indicated at 69 in Fig. 9. Throughout the rest of its length the channel has but a narrow slot, as indicated at 7 O in Fig. 9. This slot "69-70 is sufliciently .wide at its part 69 to permit cups to fall into or out of the slot, and at its part 7 O is sufficiently narrow to prevent the cups falling out. introduced tangentially into the annulus 67 at 71, its passage forming a continuation of the channel 68.

A series of cup carriers, designated generally as 72, are carried near the periphery of the disc 54. A complete circumferential series is ordinarily used, but for simplicity in the drawings many of the units of such series are omitted. Each carrier comprises a hook, pick-up, member, or article-carrying projection, 73, whose hook-end 74 is, normally, located to travel along in the channel, facing in the direction of travel of the disc, i. e. anti-clockwise in Fig. 8. The hook is fast to a shank 75 which is rotatably 'mounted in the disk 54.- At its outer end the shank 75 has a crank 76. On this crank is mounted a'cam roller 77, and also a tripfinger-and-actuator 78 stationary with respect to the crank, constituting a controller for the hook. A spring 79, attached'to the disc 54 by the screw 80 and to the finger (and crank) at 81, tends to turn the crank clockwise, thus to cause the hook to snap, or swing quickly, out of the channel, its end 74withdrawing out of the channel backwards (with respect to the direction of travel of the disc 54 and carrier 72 as a whole) to wholly withdraw from the channel and the slot 6970. This tendency of the spring 79 is, normally, resisted by a ball-and-socket catch comprising a ball 82 permanently held in the disc 54 but urged into the socket 83, of the crank 76, by the spring 84'.

The finger 78 is contoured to provide along its edge a tripper projection 85, a pushing and lifting surface 86, and a lifting surface 87. The forward end of the finger which presents the surfaces 86 and 87 is offset outward (relative to the outer face of the disc 54) at 88, placing the surfaces The upper end of the pipe 5 is 86 and 87 in a plane outward of the plane of the tripper projection 85 and the hereafter mentioned trips 89 and 104 but in 4 the plane of the pin 125 hereafter mentioned. The finger and hook are actuated by the trip, or projection, 89 located near the mouth of the pipe 5, and located in the plane of travel of the projection 85 and r,

they are also actuated by the cam track 90 which contacts the roller 77 and has, it will be noted, a dip 91 near the tripping projection 89, and a subsequent rise 92. The projection 89 is carried upon a supported band and steadying track 93, the cam track 90 and supporter band being carried by bridges 94 from the annulus 67 which lie outward of and in non-interfei'ing position with respect to, the carriers. The projection '85 is located in a plane outward of the cam'track- 90 and the hereafter mentioned slides 100, 107, 108.

. The hopper H has an inclined bottom, as indicated at 95, down which the cups slide toward the channel 68, the volume of cups having access to the channel being controlled by the gate 96, vertically adjustable, by the bolt-and-turn-nut 97,'on the partition wall 98, to determine the height of the opening 99 giving access to the channel 68.

In the normal, steady, uninterruptedfeed operation the action is as follows:- Certain of the shells in the hopper descend by gravity into the channel 68 in its lower arc. Of these, some lie in the channel'with their open ends facing the hooks which, depending into the channel 68 from the disc 54 and held in that position by the ball-and-socket latch 8283, are moving forward (anti-clockwise) in the channel with their ends 74 facing forward along the channel. These cups are picked up on the hooks and carried along. The hooks pre 'vent the cups from falling out of the open part 69 of the channel, and narrow part, 70, of the slot 69-7() is too narrow to permit dropping out of the cups (but of course wide enough for entrance of the hook body). The hooks remain in this projectin'g-into-the-channel position until the tripper projection 89 near the entrance of pipe 5 is reached, there being nothing inserted in the path of the finger 78 to move it from its normal tangential position. U on reaching the projection 89 the pro ection '85 wipes it. The balland-socket latch 82-83 is overcome, and the hook is moved backward out of the channel in position to clear the pipe 5 (the dip 91 in the cam track permitting this); and the cup passes into the pipe 5, open end up and ready to be introduced to the dies when it reaches the bottom of the pipe. As the hook continues its travel the rise 92 in the cam track moves the finger back to tangential position, the

ball 82 snaps into the socket 88, and the hookis returned to the cup channel, ready to pick up another cup. 1

Next, ll will describe the structures whereby the feeding of the cups to the pipe 5 is interrupted on occasion, while the disc 54 continues to rotate. The purpose of this interruption is to insure that the pipe 5, or more exactly the portion of the channel 68 near the pipe, will not become filled with a col of cups so long as to interfere with easy and harmless moving of the cups along the channel, in case the disc 54 conveys more Near its rear end the strip carries a projection, or trip, 104: which projects outward from the strip into the plane of the tripper projections 85 on the fingers 78 which govern the cuphooks 73. When the strip is in its backward position, and the tripper 10 1 thus in its radially outward position, the trip lies out of the ath of the tripper projections 85. With the trip in forward position, the projection 85 of each 1 approaching finger strikes it, the ball-and-socket latch 82.83 is overcome, the spring 79' snaps the hook 73 backward out of the carried cup, and the cup drops back into the hopper through the Wide art 69 of the slot 69. in the channel 67; t us no cups are carried to the pipe 5. (lit will he noted that the track 90 is interruptedat 105 to permit the swinging of the carrier 72 and then is resumed with a surface 106 to rock the-carriers back into no mal or tangential position.) i

For controlli'n the shifting of the slide 100 and, hence, t e position of the trip. 104, the mechanism "is as follows :The slide 100 is one of a series of slides, the series comprising the slide 100 or trip slide, the slide 107 or connector slide, and the slide 108or controller slide. The slides are held circumferentially slidable on the supporter hand 93- by in-and-slot connections 109. The slide10 has the other slides hinged to its opposite ends at 110 and 111, the hinges giving to the slide 100 the freedom necessary for the radial travel of the trip 104, and giving a freedom of swingto the slide 108 for a purpose presently to appear. The series of slides are urged to backwai'd, or trip-1041- out-of-the-way, position by a spring 112 con nected to the casting or annulus 67 at'118 naeaooi and to the slide 107 at 1141. A 115, for

for the stop and lever respectively being clamped to the sleeve 123 rotatable on the stud 116. Evidently the parts 115, 119 etc.

constitute a species of latch. The lever 119 has its end 1261 lying in the plane of the projections on the fingers 7 8 and behind the plane of the ends 87 of the fingers. Upon the forward end of the slide 108 is a puller pin 125, projecting into the plane of the off-set ends '87 of the fingers 78but radially beyond the path of travel of the projections 85, and ends 87 on fingers 78 when the slide 108 is inradially inward position and the fingers in tangential position.

Behind the puller pin is a triangular slot 126 in the slide '108, which encompasses a guide pin 127 on the supporting band 93 and provides byits'length 126 for the required longitudinal movement of the slide 108, and by its height 126 for the required swing about the hinge 111.

The operation of the above mechanism is as follows I j In normal unrestricted operation the slides 100,107, and 108 are pulled to the right by the spring 112, with the stop 115 riding on the outer edge of the slide 107 just ahead of the shoulder 117-, the forwardend of the slide 108 lying in lowered or radially inward position,'and the trip 10% resting in radially outward position. With the parts so placed the fingers7 8 remain in tangential position and the hooks in radial or cup-carrying position until the stop 89 isxreached; and the cups are uninterruptedly fed to the pipe 5. Now, should the pipe 5 fill up, by reason of the disc 54 feed1ng faster than is required, and the column of cups reach back along the arc of the channel 68, the top of the column will ultimately reach a point (say X) somewhat, in rear (circumferenhally) of the puller pin 125 on the forward end of the puller slide 108. When a hook reaches the head of this column the resistance encountered overcomesthe ball-and-socket 8283, which holds the cup carrier in normal position with the.finger 78 in tangential position, and the spring 79 snaps the. carrier into abnormal position with its hook free of the slot and its linger in radial position 1(see upper left hand showing in Fig.8), the dip 91 in the cam track 90 permitting thls. With the finger in radial position, when it reaches 'the pm 125 it pushes on the pin with the edge 86 and pulls the three slides forward. The pin rides up the edge 86 to ultimately let thefinger pass under the pin, and the stop 115 drops behind the shoulder 117 to lock the slides inforward position. This movement of the slides pulls 104 into the path of the projections 85 on the fingers so as to trip the cup carriers. Henceforward the hooks are freed from the cups and no cups are carried forward to the arc of the cup channel 68 above the pipe 5. As the cups continue to be discharged from the pipe 5, the time even tually arrives when the length of the column of cups behindend 124 of the lifter lever 119 is so short that a finger 7 8 is not turned soon enough to swing the projection 85 of the finger 78 out of the Way of the end 124. So the projection 85 strikes the end 124, lifting the lever 119 and so lifting the stop 115 from behind the shoulder 117, the spring 112 pulls the slides back to normal position, and the trip 104 is moved out of the path of the projections 85. The cup carriers 72 no longer are tripped, and the regular, interrupted cup feeding is resumed.

Should it'occur that, with the strip 108 in lowered position, the top of the column of cups lies so close to the pin 125 that, when the carrier snap sback, the finger strikes the pin on its forward side, the curved surface 87 will merely wipe onthe forward side of the pin, liftin the strip 108 if necessary, the contour an location of the slot 126 permitting this.

As to certain of the less tails I Desirably a cup spring 128 is mounted on the casting 67 and has its triangular end projecting partially across the channel 68 through a slot 129 in the outer periphery of important de- 1 the channel, for removing any cups that are not carried on a hook but may be pushed along the channel ahead of a hook-carried cup.

For inspection purposes the annulus 67 may be slotted on its outer periphery, as at 129 (Fig. 1), through such length as desired, such slot of course being narrower than the cups. The main slide 22 may be held on the machine bed by'guides 131. The plungers may be of the general character indicated in Figure 1. The ends of the coupling units may have increasing heights to correspond with the increasing heights-of the shells as indicated at 25; the ends of the units of the first pair may be bevelled back as indicated at 25 in Fig. 5, instead of being substantially perpendicular like the other units, thus to permit the end of the pipe 5 being brought close to the units to discharge the/cups therebetween; the last pair of couplings,or scrap couplings,may desirably have their ends bevelled back as indicated at 25f (Figs. 3 and 4) and be of considerable height to insure their receivingthe ring of scrap as it is stripped from the plunger, andtheir presenting a proper passage for the air from ference with the movements of the fingers and slides by the plungers.

I claim 1. In a drawing press, in combination, a

single hopper, and a pair of pressing units;

-2. In a drawing press for drawing pre-v viously prepared individual articles, .in combination, devices for operating -upon the articles and including a drawing die, and a receptacle, for the miscellaneous and simultaneous reception of a plurality of the articles to be operated upon, said machine providing a plurality of locations for articles in proximity to said devices and said de vices and receptacle being associated for travel of the articles from a position adja cent the receptacle to one of said locations,

driven means for arranging the articles in proper attitude to be operated upon by said drawing die and, for conveying the articles in said attitude one-by-one from said recep-' tacle to said position for travel to said associated location and to said die, driven means for moving the articles one-by-one from such location to another, and driving means for driving said two drlven means in timed relation each to the other,

I 3. In a drawing press for drawing previously prepared individual articles,-in combination, a receptacle for the miscellaneous and simultaneous reception of a plurality of the, articles to be drawn, drawing elements including a drawing die, a feed conduit in proximity to said receptacle and located to discharge the articles to a position adjacent said die, driven means for taking the articles one-by-one from such position and shifting them toward said die, driven means for taking the articles one-by-one from said 1 receptacle; arranging the articles in proper attitude to be operated upon by said drawtwo driven means.

' coupling 4. In a drawing press for drawing previously prepared individual articles, in combination, a receptacle for the miscellaneous and simultaneous reception of a plurality of the articles to be drawn, drawing elements including a drawing die, a feed conduit in proximity to said receptacle and located to discharge the articles to a position adja'-' cent said die, drivenmeans. for taking the articles one-by-one from such position and shifting them toward said die; such means including an article-handling device mov-- able into and out of handling position and driven mechanism for positively controlling the movements of said device; driven means for taking the articles one-by-one from said receptacle; arranging the articles in proper attitude to be operated upon by said draw ing die, and delivering them in said attitude to said conduit, and means for driving said two driven means andsaid driven mechanism.

5. lln a drawing press for drawing previously prepared individual articles, in combination, a receptacle for the miscellaneous and simultaneous reception of a plurality of the articles to be drawn, drawing elements for operating in succession upon each of said articles and including a bank of dies, a feed conduit in proximity to said receptacle and located to discharge articles to a position adjacent the first die of said bank, driven means for taking the articles one-by-one from such position and shifting each from die to die, driven means for taking the articles one-by-one from said receptacle, arranging the articles in proper attitude to be operated upon bysaid drawing die, and delivering them in said attitude to said conduit, and means for driving said two driven means. I

6. In a machine of the character indicated for operating upon articles and presenting a plurality of longitudinally spaced locations for the articles; mechanism for moving the articles from one location to another and comprising, in combination, a driven shifter in proximity to said'locations, and carrying a mechanically controllable coupling device for coupling an article to, and uncoupling it from, the shifter, said shifter being mounted for a movement in the direction of the spacing of said locations, and corresponding to said spacing, to move the device from correspondence with one location to correspondence with another, positively driven mechanical means, as distinguished from the article operated on, and

mechanically difierentiated from the shifter, for controlling the activities of said device in its movements to and from coupling position, and driving means for driving said is) I naeaooi shifter and said controlling means in timed relation each with the other.

7. In a machine of the character indicated for operating upon articles and presenting a plurality of longitudinally spaced locations for the articles; mechanism for moving the articles from one location to another and comprising, in combination, a driven shifter in proximity to said locations, and carrying coupling-device means for coupling an article to, and uncoupling it from, the shifter, the number of said means being at least equal to the number of said locations, said shifter being mounted for a movement in the direction of the spacing of said locations, and corresponding to said spacing, to move the coupling-device means from correspondence with one location to corespondence with another, and driving means for said shifter. 8, In a machine of the character indicated for operating upon articles and presenting a plurality of longitudinally spaced locations for the articles; mechanism for moving the articles from one location to another,

and comprising,.in combination, a driven shifter in proximity to said locations and carrying a mechanically controllable coupling device for coupling an article to, and uncoupling it from, the shifter, and adapted to occupy a coupling or an uncoupling position, said shifter being mounted for a movement in the direction of the spacing of said locations, and corresponding to said spacing, to move the coupling device from correspondence With one location ,to correspondence with another, means for moving said device toward one of said positions, positively driven mechanical means, as distinguished from the article operated on, and mechanically difi'erentiated from theshifter, for moving said device toward its other position, and driving means for driving said shifter and said drivenimeans in timed relation each with the other. a

9. In a machine of the character indicated for operating upon articles and presenting a plurality of longitudinally spaced, locations for the articles; mechanism for moving the articles from one location to another,

and comprising, in combination, a driven shifter in proximity to said locations and carrying a mechanically controllable coupling device for coupling an article to, and uncoupling it from, the shifter, and adapted to occupy a coupling or an uncoupling position, said shifter being mounted for a movement in the direction of the spacing of said locations, and corresponding to said spacing, to move the coupling device from corremechanically difierentiated from the shifter,

for moving said device toward its other position, one of said means being located substantially directly in alignment with,-and of substantially no greater width in the direction of the spacing of said locations than, said coupling device, and driving means for driving said shifter and said driven means in timed relation each with the other.

10. In a machine of the character indicated for operating upon articles and presenting a plurality of longitudinally spaced locations for the articles mechanism for moving the articles from one location to another and comprising, in combination, a driven shifter in proximity to said locations and carrying a mechanically controllable cou pling device for coupling an article to, and uncoupling it from, the shifter, said shifter being mounted for a movement in the direction of the spacing of said locations, and corresponding to said spacing, to move the coupling device from correspondence with one location to correspondence with another, means for moving said device into coupling position, positively driven mechanical means, as distinguished from the article operated on, and mechanically difl'erentiated from the shifter, for moving the device from coupling'position, and driving means for driving said shifter and said driven means in timed relation each to the other.

11. In a machine of the character indicated for operating upon articles and presenting a bed and a plurality of longitudinally spaced locations thereon for the articles; mechanism for moving the articles from one location to another and comprising', in combination, a driven carrier slide, carried upon said bed in proximity to said locations and carrying a controllable coupling device for coupling an article to, and

uncouplin an article from, the carrier slide and inclu ing a coupling unit shiftably mounted with respect to said slide for movement toward and from said locations to occupy a coupling or an uncoupling position; said carrier slide being mounted for a movement i'n the direction of the spacing of said locations and corresponding to said spacing, and said unitvbeing provided with a camsurface-following structure; means for moving said coupling device, including the coupling unit thereof, toward one of said positions, driven means for moving said device toward its other position and including a cam slide slidable with respect to said camsurface-following structure and having a cam surface for coo eration with said structure and contoure to shift said unit during relative movement, and driving means for driving said carrier slide and said driven means in timed relation each with the other. i

12. In a machine of the character indicated for operating upon artlcles and presentinga bed and a plurality of longitudinally spaced locations thereon for the articles; mechanism for moving the articles from one location to another and comprising, in combination, a driven longitudinally apertured carrier slide carried upon said bed and located to place its aperture in register with said locations as the slide is longitudinally shifted and carrying a pair of opposed coupling units located one at each side of said aperture and shiftable toward and from said aperture to occupy a coupling or an uncoupling position, for coupling an article to, or uncoupling an article from, the carrier slide, said carrier slide being mounted for a movement in the direction of the spacing of said locations and corresponding to said spacing, and each said unit being provided with a camrsurface-following-structure, means for moving said units toward one of their positions, driven means for moving said units toward their other position, such means comprising a pair of cam slides arranged one at each side of said aperture and each slidable with respect to its corelated cam-following structure and contoured to shift its co-related unit during relative movement, said cam slides being mated to each shift its co-related unit in a direction opposite to that in which the opposed unit is shifted, and driving means for driving said carrier slide and said driven means in timed relation each with the other.

13. In a machine of the character indicated for operating upon articles and including devices for operating on the articles and a receptacle for the articles to be operated upon, said devices and receptacle being associated for travel of the articles from a position adjacent the receptacle to the devices; mechanism for taking the articles from said receptacle and placing them in said position, said mechanism comprising, in combination, a driven member, a trippable article carrier carried with said member to travel therewith, normally located in article-carried position, and trippable into articlefreed position, said member being located with respect to said receptacle to we access of said carrier to said receptac e and to said adjacent position during driving of said member, a tripping device located in the path of said carrier adjacent such posi tion, and means for driving said driven member.

14. In a machine of the character indicatedfor operating upon articles and including devices for operating on the articles and a receptacle for the-articles to be operated upon, said evices and receptacle being associated for travel of the articles from a position adjacent the receptacle to the devices;

mechanism for taking the articles from said receptacle and placing them in said position,

a driven member, a trippable article carrier carried with said member to travel therewith, normally located in article-carried position, and trippable into article-freed position, said member being located with respect to said receptacle to give access of said carrier to said receptacle and to saidadjacent position during driving of said mem-' her, a major tripping device located in the path of said carrier adjacent such position, an auxiliary tripping device located ahead of said major device along the path of travel of said carrier, and removed from such position, and shiftable into and out of said path, means for shifting said auxiliary device into and out of said path and operable by said carrier on occasion, and means for driving said driven member. I

15. In an article feeding structure, in combination, an article receptacle having a wall presenting a substantially circular-aperture and surrounding annular article channel, said channel having a longitudinal opening therein facing said aperture and also having an article exit, a rotatable feeding disc located at said aperture and concentrically positioned with respect to said channel with its periphery in close proximity to said channel, an article carrier movably mounted on said disc adjacent its periphery for movement into and out of carrying position and comprising an article-carrying element and a controller, said carrying element lying in article-carriedposition with relation to said channel when said carrier is in normal position and lying in article-freed relation when in abnormal position, means for holding said carrier in normal position, a trip device arranged adjacent said exit for cooperation with said controller to move said carrier toward abnormal position, means for returning the carrier to normal-position, and means for driving said disc.

16. In an article feeding structure, in combination, an article receptacle having a wall presenting a substantially circular aperture and surrounding annular article channel, said channel having a longitudinal opening therein facing said aperture and also having an article exit, a rotatable feeding disc located at said aperture, and concentrically positioned with respect to saidchannel with its periphery in close proxdmity to said channel, anarticle carrier movably mounted on said disc adjacent its periphery for movement into and out of car rying position and comprising an articlecarrying element and a controller; said controller'comprising a shank pivoted in said disc and carrying said element, and a tripper finger and related cam roller carried by said shank; said carryin element lying in.

article-carried position with relation to said channel when said carrier is in normal position and lying 1n-art1cle-treed relation when manner in abnormal position, means for holding said carrier in normal position, a trip device arranged adjacent said exit for co-operation with said tripper finger to move said carrier to abnormal position, a cam track adjacent said disc and located for travel of said roller thereupon, said track having a portion compelling the return of said carrier to normal position, and means for driving said disc.

17 lln an article feeding structure, in combination, structure providing an article channel, said channel having an-exit there-- and also having connections between said element and controller for moving said controller into carrier-tripped position under pressure upon said element, a trip located adjacent said portion of said longitudinal opening and shiftable into and out of the path of said controller, devices for causing shifting of said trip into said path and means for causing shifting of it out of said path, said devices including an element movable to bring about shifting and lying in the path of said controller when the carrier is in tripped position, to be moved thereby; whereby when said'articles tail to discharge through said exit, and said carrying element strikes one, and the carrier is thereby moved to tripped position, said controller moves said movable element, and. said devices move said trip into'carrier tripping position.

18. In an article feeding structure, in combination, a receptacle, structure providing a channel for the articles, with said channel located to receive articles from the receptacle and having an exit and also having an 0 en portion removed from said exit for the dlscharge bf articles on occasion, said portion being located ahead of said exit relative to the travel of the hereafter named carrier, a travelling carrier for-carrying articles along said channel from said receptacle and trippable to discharge articles, both by a trip and by ressure of portions of said carrier against t e articles, a shittable trip for said carrier adjacent said open portion and shiftable into tripping posit on,

means for shifting said trip into carriertripping position when said carrier is tripped by its pressure 11 on said articles, and means for moving sai carrier.

1%). ln an article feeding structure, in com- Ill) bination, a receptacle, structure providing a channel for the articles, with said channel located to receive articles from the receptacle and having an exit and also having an open portion removed from said exit for the discharge of articles on occasion, said portion being located ahead of said exit relative to the travel of the hereafter named carrier, a travelling carrier for carrying arti-* cles along said channel from said receptacle, trippable to discharge articles, both by a trip and by pressure of portions of said carrier against the articles, and having a pusher for cooperation with the hereafter named pusher-cooperating element when said carrier is in tripped position, a shiftable trip for said carrier adjacent said open portion and shiftable into and out of tripping position, operative connections extending from said trip to a location between said trip and said exit and having a pusher-cooperating element for cooperation with said pusher, whereby said trip shifts, and means for driving said carrier.

20. In an article feeding structure, in combination, a receptacle, structure providing a channel for the articles with said channel located to receive articles from the receptacle and having an exit and also having an open portion removed from said exit for the discharge of articles on occasion, said portion being located ahead of said exit relative to the travel of the hereafter named carrier, a travelling carrier for carrying articles along said channel from said receptacle, trippable to discharge articles, both by a trip and by pressure of portions of said carrier against the articles, and having a pusher for cooperation with the hereafter named pusher-cooperating element when said carrier is in tripped position and a latch lifter for contact with the hereafter named latch when the carrier is in untripped position, a shiftable trip for said carrier adjacent said open portion and shiftable into and out of tripping position, operative connections extending from said trip to 'a location betweensaid trip and said exit and having a pusher-cooperating element, for cooperation with said carrier to move said tri into trip-active position, a latch for holding said connections in trip-active position, means releasable by said latch to move said tripto trip-inactive position, and means for driving said carrier.

21. In a machine of the character indicated and for operating upon articles, in combination, receptacle for the articles to be operated on, devices for operating on the articles, and means for feeding articles from said receptacle to said devices; such means comprising a member having an article channel in communication with said receptacle and provided with an article exit associated with said devices, means for moving articles along said channel to said exit and comprising a driven member and a carrier carried by said member; such carrier comprising a projection totravel in said channel, a shank rotatable in said member and carrying said projection, and a controller mounted on said shank; means for causing turning of said carrier With said shank, means to prevent such movement on occasion, a trip for said controller to overcome said preventing means on occasion, a second means to turn said carrier and adverse to said first named turning means, and means for driving said driven member.

22. In a machine of the character indicated and for operating upon articles, in combination, a receptacle for the articles to be operated on, devices for operating on the articles, means for feeding articles from the receptacle to said devices and comprising a driven member in proximity to said receptacle and carrying an article carrier located in communication with said receptacle to take articles therefrom, such carrier being trippable from article-carried position to article-freed position and having a pusher portion and a trip-contacting portion, a shiftable trip and means for operating the same; such operating means comprising a tripcarrying slide and a connected puller slide carrying an element in the path of said pusher portion when said carrier is in one of its positions, whereby when said carrier is in such position said carrier in its travel slides said slides and shifts said trip; and means for driving said member.

23. In a machine of the character indicated and for operating upon articles, in combination, a receptacle for the articles to be operated on, devices for operating on the articles, means for feeding articles from the receptacle to said devices and comprising a driven member in proximity to said receptacle and carrying an article carrier located in communication with said receptacle to take articles therefrom, such carrier being trippable from article-carried position to article-freed position and having a latenreleasing portion, a shiftable trip and means for operating the same; such operating means comprising a latch-held slide connected to said trip to move the same, and means for moving said slide when released from said latch; a latch having an'eleinent in the path of said latch-releasing portion when said carrier is in one of its positions,

whereby when said carrier is in such posi-' tion said carrier in its travel releases said latch and said slide-operating means moves said latch-held slide and shifts said trip, and means for driving said member.

24. In a shell drawing press for drawing open-ended cups into shells, in combination. a die bed provided with a longitudinal series of dies and presenting an article rest at one end ofsaid series and a scrapescape at the other, a plunger holder reciprocatable to and from said bed and carrying a series of plungers for cooperation with said dies,

concentric therewith, a series of trippable cup carriers mounted with the said disc adjacent its periphery and trippable by trips and also under pressure of the hereafter named holder on cups, and each provided with a cup holder and a controller, said cup holder being arranged to project into said channel and carry cups when the carrier is in untripped position and to discharge cups when the carrier is in tripped position, a trip for tripping the carriers adjacent the entrance to said conduit, an auX- iliary trip for the carrier arranged ahead of the wide upper portion of said slot, and shiftable into and out of tripping position, operative connections extending from said auxiliary trip toadjacent the entrance to said conduit and operable by a tripped carture.

memoir rier to move said trip-into active position, and operable by an untripped carrier to move the trip into inactive position, and means for returning the carriers to untripped position; a driven carrier slide reciprocatable on said bed longitudinally of said series of dies and carrying a series of articlecoupling pairs spaced in correspondence with the spacing of said article rest, the dies, and the scrap escape, means for moving the units of said pairs to coupling position, a driven device for controlling the positions of said units, i. e. coupled or uncoupled, and reciprocatable relatively to said carrier slide, a. series of driven 'ejectors for lifting the partially drawn shellsfrom the diesinto position to be coupled to the carrier slide by the coupling units, and timed means for driving the carrier slide and controlling device in timed relation to provide for coupling the cup at the rest, the partially drawn shells, and the scrap, to the carrier for forward movement therewith, and their subsequent release when new positions for them have been reached; and driving means to drive said 'plungers, to drive saidfeed disc in a direction to carry the article carriers from said auxiliary trip to the entrance to said conduit, to drive said ejectors, and to drive said timed means, in timed relation each with the other.

In testimony whereof I aflix my signa- WALTER s. norniznnan.

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