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Número de publicaciónUS939888 A
Tipo de publicaciónConcesión
Fecha de publicación9 Nov 1909
Fecha de presentación14 Ene 1908
Fecha de prioridad14 Ene 1908
Número de publicaciónUS 939888 A, US 939888A, US-A-939888, US939888 A, US939888A
InventoresIsaac Bertin
Cesionario originalIsaac Bertin
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Machine for making paper dishes.
US 939888 A
Resumen  disponible en
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I. BERTIN. MACHINE FOR MAKING PAPER DISHES.

APPLICATION FILED JAN.14, 1908. 939,888. Patented Nov. 9, 1909.

5 SHEETS-SHEET 1.

WITNESSES INVENTO/Y,

A rromv Y5,

I. BERTIN. MACHINE FOR MAKING PAPER DISHES.

APPLICATION FILED JAN. 14, 1908.

Patented Nov. 9, 1909.

5 SHEETS-SHEET 2.

WITNESSES m5 T0}? A5006 Ber/v7 ,4/ m

ATTORNEYS I. BERTIN. MAGHINE FOR MAKING PAPER DISHES.

APPLICATION FILED JAN.14, 1908.

Patented Nov. 9,1909.

6 SHEETS-SHEET 3.

11mm 19/? /56767C 5e rf/n,

A TTORNEYS I. IBERTIN. MACHINE FOR MAKING PAPER DISHES.

APPLICATION FILED JAN.14, 1908.

Patented Nov. 9, 1909.

5 SHEETSSHEET 4.

INVENTOI'? 53/770 ATTORNEYS,

I. BERTIN. MACHINE FOR MAKING PAPER DISHES.

7 APPLICATION FILED JAN.14, 1908 939,888. Patented Nov. 9, 1909 ESHEETS-SHEET 5 7725 I 14 WITNESSES 1? Wyn roe, M

By Asvac Ber/f0; 15 5 4% A TTOHNEKS ISAAC BERTIN, OF NEW YORK, N. Y.

MACHINE FOR MAKING PAPER DISHES.

Specification of Letters Patent.

Application filed January 14, 1908.

Patented Nov. 9, 1909. Serial N 0. 410,748.

To all whom it may concern:

Be it known that 1, Isaac BERTIN, a subject of the Czar of Russia, and residing at New York, in the county of New York and State of New York, have, invented certain new and ,useful Improvements in Machines for MakiniieiPaper Dishes, of which the following-is... specification, such as will enable those skilled in the art to which it apper tains to make and use the same.

This invention relates to machines for making paper dishes, such as are shown and described in United States Letters Patent, N 0. 816,975 granted to me March 12, 1907; and the object of the invention is to provide an improved machine of this class by means of which paper dishes of the class shown and described in said patent may be manufactured at a minimum of cost; and with these and other objects in view the invention consists in a machine of the class specified constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which Figure 1 is a side elevation of my improved machine, part of the construction being shown in section; Fig. 2 a back view of the machine with part of the construction shown in section, and part of the construction being omitted for clearness; Fig. 3 a partial section on the line 3-3 of Fig. 1,but showing the parts in a different position and the base of the machine being omitted; Fig. 4 a plan view of a bottom plunger head which forms a part of the machine and showing the parts connected therewith; Fig.

5 a bottom plan view of a top plunger head forming a part of the machine and showing the parts connected therewith; Fig. 6 a partial section on the line 66 of Fig. 1; Fig. 7 a section on the line 77 of Fig. l, but showing the parts in a different position Fig. 8 a side view of a gage device forming part of the machine and two of which are employed; Fig. 9 a perspective view of another gage device, two of which are employed; Fig. 10 a perspective view of the gage device shown in Fig. 8 detached from the frame of the machine and showing the parts thereof in a different position; Fig. 10 a face view of a roller die gear wheel which I employ, Fig. 11 a perspective view of a paper dish formed from a complete blank, one end portion of which is shown in Fig. 1, in dotted lines; F ig; 12 a side view of a roller die which I employ, Fig. 13 a transverse section "of the roller die on the line 13-13 of Fig. 12, Fig. 14 a transverse scction of said die on the line 1 l-1 1 of Fig. 12, and ;Fig. 15 a plan view of a paper blank formed by said die and from which the dish shown in Fig. 11 is made.

In the practice of my invention I provide a main frame a having a base member a and a top bed plate af, and said frame is provided at the back thereofwith an upright yoke-shaped portion (1* in which is mounted'a vertically movable supplemental frame 6, comprising a bottom portion 6 a top portion and side portions o which are movable in grooves a in the opposite sides of the upright yoke-shaped portion a of the main frame, and which are provided at a predetermined distance above the bottom thereof with beveled shoulders 6 The top part b of the vertically movable supplemental frame I) is provided centrally with a plunger I)" provided at its lower end with a plunger head 6 which, in the construction shown, is rectangular and oblong in form as shown in Fig. 5, and the plunger 6 is open at its opposite sides, and mounted in said sides are laterally movable plates 6 between which are placed springs I) by which said plates are normally held flush with the sides of the plunger, and said plates are retained in position by a band 0 composed of separate parts provided at the opposite sides of said plunger with ears 0- through which are passed pins or bolts 0 by which the separate parts of said band are connected, and connected with each of the pins 0 is a link 0*. Hinged to the opposite ends of the plunger head I) are wing plates 0 and hinged to the opposite sides of said plunger head are wing plates 0 and the wing plates 0 are rectangular in form, in the form of construction shown, while the wing plates 0 are of dove-tail shape, the outer edges thereof being wider than the inner edges, and the ends thereof being tapered inwardly, and the links 0* at opposite ends of the plunger b are connected with the wing plates 0 as shown at c and centrally of the outer edges thereof while two of said links, at opposite sides of the plunger 7) are connected with the wing plates 0 in the same manner.

In the form of construction shown, the plunger head I) ranges transversely of the main frame, and the wing plates 0" are at the front and back thereof, while the wing plates 0 are at the opposite ends thereof.

The top bed plate a of the main frame is provided, beneath the upright portion a" thereof, with an opening a beneath which is arranged an upright guide casing d in which is mounted a vertically movable plunger d beneath which is placed a spiral spring d", and the plunger a is provided at its upper end with a plunger head at a plan view of which is given in Fig. 4, and said lunger head d is also rectangular and obong in form, in the form of construction shown, and ranges transversely of the main frame and the front and back edges thereof are provided with hinged wing plates d, While the opposite ends thereof are provided with hinged wing plates (1 and the hinged wing plates d are rectangular in form, in the form of construction shown, and correspond with the wing plates 0 connected with the plunger head 0, while the wing plates d are of the same form as, and correspond with the wing plates 0 connected with the plunger head 6, and the said wing platesa are provided at their ends with hinged supplemental wing plates d which are triangular in form.\

Mounted in the top portion ofthe guide casing al and ranging forwardly and backwardly therein and transversely thereof are pins e with .whichare connected spiral springs. e which pass through; corresponding openingsin the bed plate a 'of the main frame and arev connected with the wing plates dftand d of the plunger head d", and

the plungeral is provided 'with'atrans-v verse pin e movablein vertical slots s? in the opposite sides of the guide casing 03 and which serve to limit the yertical movement] an angle of approximately 45 de rees and of said plunger.

Mounted transversely of the main frame and forwardly of the upright portion a ofsaid frame is a power shaft f provided with a belt wheel f and a large gear Wheel f approximately one-half of the perimeter of which is provided with teeth f and the other part thereof with a central segmental rib f and arran ed at right angles to said shaft f is a supp emental shaft f provided at its front end with a beveled gear wheel 1 which meshes with the corresponding beveled gear wheel on the shaft f, and the supplemental shaft f is provided at its rear end with a disk f provided with a wrist pin f movable in a horizontal groove f formed in a backwardly directed projection f on the bottom part b of the supplemental vertically movable frame I), and said bottom wheel f and the teeth of which correspondwith and range with the teeth 7 of the wheel f Two of the teeth g of the wheel 9 are cutout centrally to form recesses g as shown in Figs. 1 and 10, and these recesses range circumferentially of said wheel, and the transverse width of the recesses gis a little greater than the transverse width of the rib f on the wheel f, and by reason of 1 this construction, in the operation of the machine as hereinafter described, the wheel 9 will remain stationary during approximately one-half of a revolution of the wheel f and the wheel 9 will be given one full revolution during the time that the teeth thereof are engaged with the teeth f of the wheel i and durin this operation the wheel 9 is locked against rotation during one-half of a revolution of the wheel f this operation' being accomplished by the'rib f while it is moving through the recesses g in two of the teeth g of the wheel'g, and this locking of the wheel g occurs -during the up and provided with hinged gages h with which are connected links it connected with the upper end portion of the levers h pivoted to the front ends of the bars 71, and the lower ends of the levers h are pivoted to the base plate a of the main frame.

Secured to the rear ends of the bars h are transversely ranging gage plates 71, the inner ends of which are also beveled at an angle of 45 de rees and provided with stationary depending gages i which correspond with the movable gages 7L connected with the gage plates h, and in the operation of the machine as hereinafter described, the bars k are forced outwardly by the springs h and inwardly by the beveled shoulders b on the side portions 6 of the vertically movable supplemental frame 6. Referring now to the vertically movable plunger 5 connected with the top portion 72 of the vertically movable supplemental frame I), the laterally movable slide plates 5 are provided centrally thereof with shoulders i beveled at the top and bottom, and on which the band a normally rests and the top portion (1* of the upright portion of the main frame is provided with pins 2" which are movable through corresponding openings 2 in the top portion 5 of the supplemental vertically movable frame I), in the operation of the machine as hereinafter described, and which are adapted to bear on the band 0 or oil the oppositely arranged ears 0 thereof, and to force said. band downwardly and straighten out the wing plates 0 and c as shown in full lines in Fig. 2, and dotted lines in Fig. 7.

The top part b of the supplemental vertically movable frame I) is provided cen-' trally with a vertical pin movable through the topvof the upright portion a of the main frame, and secured to the top of the said upright portion at of the main frame forwardly of the pin 7' is a support j having a backwardly directed shoulder y' and to which is pivoted an arm 70 provided at its lower end with a backwardly directed member 70 and at its upper end with a backwardly directed member 70 in connection with which the pin j operates to throw the backwardly directed bottom member k of said arm backwardly as shown in full lines in Fig. 1, and secured to the upright portion a of the main frame is a spring 70* which normally bears on the arm is and is adapted to force the bottom portion thereof forwardly as shown in dotted lines in Fig. 1.

The shaft 9 is provided with a roller die mand a corresponding roller die n is mounted thereunder and operates in connection therewith, and these rollers form a roller die which is clearly shown in Figs. 12, 13 and 14.

In order to describe the roller dies m and n, it is first necessary to describe the blank shown in Fig. 15 which may be made by said dies. This blank is exactly the same as that described and claimed in the patent referred to and comprises a bddy portion 0, side portions 0 and end portions 0 and the side portions 0 are provided with corner portions 0, the corners of which are beveled off as shown at 0 Between the body portion 0, the end portions 0 the side portions 0 and the corner portions'o of the side portions 0 are score or folding lines 0 but the main end portions 0 are connected only to the body portion 0, said end portions 0 being separated from the corner portions o of the side portions 0 by slits 0.

At a predetermined distance from the corners of the body portion 0 of the blank the adjacent edges of the corner parts 0 and end portions 0 are provided with slits p which converge inwardly toward the score or foldin lines 0, and are provided at their inner en s with hook members 79 forming tongues p and the ends of the hook members p of each pair of slits p are turned in opposite directions.

A disk formed from the blank shown in Fig. 15 is substantially rectangular in form in plan or horizontal section, and the parts 0 and 0* form the end portions thereof, and in making a disk from said blank the side portions, end portions and corner portions are folded upwardly at an angle of about 45 as shown in Fig. 11, and the corner portions and end portions are interlocked as shown in said figure, this operation being accomplished by slipping the corner portions and end portions together where the slits p are formed, in such a manner that the extreme outer part of the end portions of the blank are on the outside of the ends of the dish and the tongue portions p interlock with the corresponding hook member of the slits p to secure the separate parts together.

Having now descrlbed the blank shown in Fig. 15, the roller dies m-n by which said blank is made may be easily described. .The roller m is provided with longitudinal creasing or score ribs m and a longitudinal cutter rib m and said roller is also provided with circumferential score ribs m and with diagonally arranged end score ribs m and with diagonally arranged cutter ribs m together with hook-shaped cutter ribs m while the roller 11 is provided with longitudinal score grooves n which correspond with the score ribs m on the roller m, and with a cutter groove n which correspond with the cutter ribs m on the roller m, and said roller n is also provided with circunr ferential score grooves n which correspond with the score ribs m on the roller m,

and'with diagonally arranged score grooves 11 which correspond with the score ribs m on the roller m together with inclined or diagonally arranged end cutting grooves n which correspond with the cutting ribs m on the roller m, and hook-shaped cutter grooves n which correspond with the cutter ribs m on the roller m. The roller m is also provided with cutter ribs m which cut off the corners of the blank at 0 and the roller n with corresponding cutter grooves n and from this description it will be seen that the roller n is the counter-part in all respects of the roller m, the various score ribs and score grooves on said rollers forming the score or folding lines 0 on said blank, while the various cutter ribs and cutter grooves on said rollers form the slits 0 and p in said blank.

Returning again to the structural part of the machine proper and referring to Figs. 1, 2 and 7 it will be seen that the bed plate a of the main frame is provided in the top thereof with recesses s to receive the wing plates of the plunger head d when said wingv plates are in a horizontal position, and said recesses form shoulders 8 around the opening a? in the bed plate a the function of which will ap ear in the description of the operation of tiie machine.

' In Figs. 1, 2, 4 and 5 of the drawing I have also shown the opposite wing plates (Z of the bottom plunger head all provided at their corners with diagonally arranged pins t arranged in pairs, and the end wing plates 0 of the top plunger head 6 are'provided at their opposite corners with diagonally arranging pins t arranged in pairs, the line of the pairs of pins t being at right angles to the line of the pairs of pins t when the plunger heads I) and d are arranged in proper position as in Fig. 1, and the position of these pins in the operation of the machine, as hereinafter described, is indicated in dotted lines on the blank shown in Fig. 15, and the object of these pins is to separate the tongues p of the blank formed by the slits p so that the inter-locking parts of the corner portions and end portions may be caused to engage and inter-lock as shown in Fig. 11 in the operation of the machine as hereinafter described.

In the operation of this machine, the pa per u from which the blank shown in Fig. 15 is made is fed into the machine in a strip of the required width and of any desired length, and this strip may be taken from a reel, spool or other device supported in proper relation to the machine.

It will be understood, that the machine is driven by the shaft f by means of a belt applied to the wheel f on said shaft f, or said shaft may be driven in any desired manner. In Fig. 1 of the drawing, I have indicated in dotted lines at n a complete dish in the operation of being discharged from the machine, and at u a blank partly in position to be formed into a dish, said blank being out off from the main strip 10 at it.

As the supplemental frame 6 is drawn downwardly by the wrist pin f y", the pin j carried by the top portion of the supplemental frame descends also and the lower.

portion of the arm is is forced forwardly out of the way of the descending top plunger head If, by the spring 70 Just before the plunger head I comes in contact with the blank lying on the plunger head (1 the beveled shoulders 0 of the supplemental frame I) are forced into contact with the gage carrying bars 7L forcing them inwardly against the action of the springs ]L3 and at the same time the levers h are oscillated, by reason of the lower ends there- .having a pivotal connection with the ends of said bars If, and the hinged gages If are forced downwardly and inwardly and come in contact with the front beveled end corners of the blank, and the gages 2' carried on the rear ends of the bars k are also forced inwardly and contact with the rear beveled end corners of the blank, thus accurately placing the same on the bottom plungerhead cl to be formed into a dish by the top and bottom plunger heads and the parts connected therewith. D

In the operation of the machine, it is necessary to give the gear wheel 9 and shaft g an intermittent movement with respect to the .drive shaft f, by reason of the fact that while the machine. is forming the dish and delivering it, the roller die mn which also a'ctsto feed the paperstrip into the machine must remain idle, and this is accomplished by the central circumferential rib f of the gear traveling through the recesses g formed'in one or more teeth of the gear 9 As the upper plunger head moves downwardly and near the limit of its downward movement, it contacts with and forces downwardly the body portion 0 of the paper" blank and also the lower plunger head (Z and the inner edges of the wing plates 03 and (Z having a pivotal connection with said plunger head 01 are drawn downwardly while the outer edges of said wing plates are thrown upwardly by reason of the said wing plates rocking on the shoulder 8 formed around the opening d in the bed plate. As the upper plunger head further descends the wing plates of the lower plunger force the outer edges of the Wing plates of the upper plunger head upwardly to correspond with the angle of the lower wing plates, and between these wing plates and plunger heads the dish is formed, and the pins 2. and t of the wing plates of the upper and lower plunger heads actin on the interlocking portions of the blank orce the tongues 29 slightly apart just before the corner portions. of the blank are forced inwardly and said corner portions are interlocked with their respective end portions 0 of the blank, and a dish is formed. At this time the plnngers and their connected parts are in the position shown in Fig. 7 in full lines, and the band 0 is above the shoulders 2" on the laterally movable side plates 6 of the plunger 1), and the arm 70 is 1n the positicn shown in dotted lines in Fig. 1, and as the shaft 7' continues to turn the plungers assume the position shown in full lines in Fig. 1, the arm is is thrown inwardly as shown in full lines in said figure and the dish a is discharged at the back of the machine by said arm.

It will be observed that the rollers m and 'nof the roller die are so. mounted that the top of the bottom roller n is flush with the top of the base plate a of the main frame and said base plate is provided with a transverse opening in which said roller is mounted, andwhile I have described my improvement as a machine for making paper dishes, and the strip or sheet u as composed of paper, it will be apparent that said strip or sheet may be composed of a composition of paper and linen or of any other suitable material.

It will be understood that my invention is not limited to the exact details of construction shown and described nor to the exact form or details of the dish produced by the machine as shown and described, or the form of the blank from which said dish is made, as said form of the blank and form of the dish depend on the details of construction shown and described, and various changes in and modifications of said details of construction may be made, within the scope of'the appended claims, without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a machine for forming dishes from a strip of paper or similar material, a frame provided with a base plate having an opening, a vertically movable spring supported.

plunger mounted in said frame and provided with a head normally flush with the top of v the base plate, said head being provided with hinged wings also normally flush with the top of the base plate, means whereby said wings will be raised when said plunger is lowered, a vertically movable top plunger mounted' above the bottom plunger and adapted to-operate in connection therewith, said plunger being provided with a head which corresponds with the head of the bot tom plunger and with hinged Wings which correspond with the wings of the head of the bottom plunger and are adapted to be raised by the wings of the bottom plunger, and means for forcing the wings of the top plunger downwardly when the said plunger is. raised, and devices foroperating said top plunger.

2. In a machine for forming dishes from a strip of paper or similar material, a frame provided with a base plate having an opening, a vertically movable spring supported plunger mounted in said frame and provided with ahead normally flush with the top of the base plate, said head being provided with hinged wings also normally flush with the top of the base plate, means whereby said wings will be raised when said plunger is lowered,- a vertically movable top plunger mounted above the bot-tom plunger and adapted to operate in connection therewith, said plunger being provided with a head which corresponds with the head of the bottom plunger and with hinged wings which correspond with the wings of the head of the bottom plunger and are adapted to be raised by the wings of the bottom plunger, and means for forcing the wingsof the top plunger downwardly when the said plunger is raised, and devices for operating said top plunger, said machine being also provided with means for forming a blank from said strip of material and feeding said blank into position on the head of the bottom plunger.

3. In a machine of the class described, a

frame provided with a base plate, a vertiplunger and with hinged wings corresponding with the hinged wings of the head of the bottom plunger and adapted to be raised thereby when said bottom plunger is depressed, means for raising the wings of the head of the bottom plunger when said plunger is depressed, means for depressing the wings of the head of the top plunger when said top plunger is raised, and devices for operating said top plunger.

4. In a machine for forming dishes from paper orsimilar material, a frame provided with a base plate, a vertically movable bottom plunger mounted therein and provided with a head normally flush with the top of the base plate, transversely arranged gage bars mounted at the opposite sides of said plunger and ranging forwardly and backwardly of the machine, said gage bars being provided at their rear ends with stationary gages and at their front ends with movable said plungers being provided with means for forming a dish from said blank, means for normally holding the head of the bottom plunger flush with the base plate, and devices for operating the top. plunger.

5. In a machine for forming dishes from paper or similar material, a frame provided with a. base plate, a vertically movable bottom plunger mounted therein and provided with a head normally flush with the top of plunger and ranging forwardly and backwardly of the machine, said gage bars being the head of the bottom provided at'their rear ends with stationary gages and at their front ends with movable gages, said gages being adapted to position a 1 blank on said plunger as it is fed into position thereon, a vertically movable top plunger mounted over the bottom plunger and i i l i l i i i l i i i adapted to operate in connection therewith, said plungers being providedwith means for forming a dish from said blank, means 5 for normally holding the head of the bottom plunger llush with the base plate, and devices for operating the top plunger, said machine being also provided with means for feeding a strip of material thereinto, forming a blank therefrom and feeding said blank into position on the bottom plunger.

6. In a machine for forming dishes from paper or similar material, a main frame provided with a base plate, avertically movable spring supported bottom plunger mounted therein and provided with a head normally flush with the top of the base plate and hav- 1 ing hinged wings which are tensionally held in a depressed position, means whereby said wings will be raised when said plunger is depressed, a vertically movable frame mounted over said plunger and provided with a top plunger having a head which corresponds with the head of the bottom plunger and is adapted to operate in connection therewith,

the head of the top plunger being also provided with hinged wings which operate in connection with the hinged Wings of the head of the bottom plunger and are adaptedv to be raised thereby when said top plunger is depressed, means for depressing the wings of the head .of the top plunger when said plunger is raised, and means for operating said vertically movable frame.

7. In a machine for forming dishes from paper or similar material, a main frame provided with a'base plate, a vertically movable spring supported bottom plunger mounted therein and having a head normally flush with the top of the base plate and provided with hinged wings which are tensionally held in a depressed position, means whereby said wings will be raised when said plunger is depressed, a vertically movable frame mounted over said plunger and rovided with a top plunger having a head w ich corresponds with the head of the bottom planger and is adapted to operate in connection therewith, the head of the top plunger being also provided with hinged wings which operate in connection with the hinged wings of lun 'er and are adapted to be raised therel y when said top mental frame mounte feeding said blank into position on the head of the bottom plan er;

8. In a machine or forming dishes from paper or similar material, a frame provided with a base plate, a vertically movable spring supported bottom plunger mounted therein and provided with a head normally flush with the top of the base plate, hinged wings connected with the head of said plunger, means for tensionally holding said hinged wings in a depressed,pos1t1on and flush with the top of the base plate, said base plate being also provided with means for raising said wings when said plunger is depressed, avertically movable suppleover said plunger and provided with a top plunger having a head adapted to operate in connection with the head of the bottom plunger, the head of the top plunger being also provided with hinged wings adapted to operate in connection with the hinged wings of the head of the bot-tom plunger and to be raised thereby when said plimgers are depressed, means for depressing the wings of the head of the to plunger when said plunger is raised, an means for operating the supplemental vertically movable frame and the top plunger. 9. In a machine for forming dishes from paper or similar material, a main frame provided with a-base plate, a bottom plunger mounted in said frame and provided with a head flush with the top of the base plate, said plunger being provided at opposite sides with hinged rectangular wmg plates and at other opposite sides with hinged wing plates wider at their outer than at their inner edges and the ends of which are tapered and provided with supplemental hinged triangular wing plates, a top plunger mounted over the bottom plunger and provided with a head corresponding with the head of the bottom plunger, the head of the top plunger being also provided at opposite sldes with hinged triangular wing plates and at other 0 posite sides with hinged wing plates whic are wider at their outer than at their inner edges.

10. In a machine for forming dishes from pa er or similar material, a main frame provi ed with a base plate, a bottom plan er mounted in said. frame and provided wit a head flush with the top of the base plate, said plunger being provided at opposite sides with hinged rectan lar wing lates and at other opposite sides with hinged wing plates wi er at their outer than at their inner edges and the ends of which are gages connected with the tapered and provided with supplemental hinged triangular wing plates, a top plun ger-mounted over the bottom plungerand provided with a head corresponding with the head of the bottom plunger, the head of the top plunger being also provided at opposite sides with hinged triangular wing plates and at other opposite sides with.

hinged wing plates which are wider at their outer than at their inner edges, means for operating said plungers and the wing lates thereof, and means for feeding a strip of material into the machine, forming a blank therefrom and feeding said blank onto the head of the bottom plunger.

11. In a machine for forming dishes from paper or similar material, a mam frame provided with a base plate, a verticallymovable plunger mounted therein and provided with a head normally flush with the top of the base plate, transversely arranged gage bars mounted on the opposite sides of said plunger and movable toward and from the same and ranging forwardly and backwardly of the machine, stationary gages connected with the rear ends of said age bars, movable ont ends of said gage bars, said gages being adapted to position a blank on said plunger, means for forming said blank and feeding it into position on said plunger, a supplemental plunger mounted over the first named plunger and provided with a head adapted to operate in connection with the head thereof, both of said plunger heads being provided with hinged wings and said plunger heads and the wings thereof being adapted to form said blank into a dish, and means for operating said plungers and the wings thereof.

12. In a machine for forming dishes from paper or similar material, a mam frame provi ed with a base plate at the back of which isa raised portion, a bottom spring supported plunger mounted in the main frame under the raised portion thereof provided with a head normall flush with the top of the base plate, a supp emental frame vertically movable in the raised ortion of the main frame and provided with a supplemental plunger adapted to operate in connection with the bottom plunger, means for feeding a strip of material into the machine, forming a blank therefrom and positioning said blank on the bottom plunger, devices connected with said plungers for forming said blank into a dish, an arm pivotally su ported over the raised portion of the main rame and adapted to be o erated by the supplemental vertically mova le-frame and to discharge said dish from the machine in the u ward movement of said frame, and devices fbr operating said plungers.

13.. Ina machine of the class described, a frame, means for feeding a strip of material into the machine and to form therefrom a blank having inter-locking members, means for forming said blank into a dish and for inter-locking said members, and means for discharging said dish from the machine.

15. In a machine for making paper dishes, a frame, a roller die composed of separate rollers placed one above another, said die being adapted to feed a strip of material into the machine and to' form therefrom blanks composed of central, side, end and corner members, the end and corner members being rovided with inter-locking devices, means fbr forming said blank into a dish and for inter-locking the. end and corner members, and means for discharging said dish from the machine.

16. The combination of a table having a cavity, a movable plate over the cavity and having folding members hinged at its edges, a reciprocative centrally dis osed plate over the first named plate, olding members hinged thereto at its edges, and means tocause said plates and members to co-act in pressing a blank interposed between them.

17. The combination of a table having a cavity, a centrally disposed plate resiliently supported with respect to said cavity and provided with members hinged at its edges, a reciprocative plate over the first named plate and provided with members hinged at its edges, links connected with said hinged members, a post connected with the reciprocative plate, means movably connecting said links with said post, and means to reciprocate said post.

18. The combination of a table provided with a cavity, a centrally disposed plate over the cavity and provided with members hinged at its edges, a post provided with a plate to coact with the first named plate and provided with membershinged at its edges, a cross bar connected with said post, arms at opposite ends ofsaid cross bars, guides receiving said arms, and means connected with said arms for reciprocating said cross bar.

.19. The combination of a table having a cavity, a movable plate over the cavity and having folding members hinged at its edges, a reciprocative centrall disposed plate over the first, named plate, fo ding members hinged thereto at its edges, means to cause said plates and members to co-act in pressing a blank interposed between them, -a pair of 'rolls one of which is provided with cutters arranged to out and score a blank and .cutthe I my invention I have signed my name in presblank from a continuous strip, and the other I ence of the subscribing witnesses this 13th roll-havingdepressions corresponding to said day of January, 1908. cutters, and means to intermittently rotate ISAAC BERTIN. 5 said rolls during continuous reciprocations l Witnesses:

of said plates and folding members. 3 M. E. Doom,

In testimony that I claim the foregoing as l C. E. MULREANY.

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Clasificaciones
Clasificación cooperativaB31B7/00