US2022527A - Mixing machine - Google Patents

Description

F. A. SCHLETZ MIXING MACHINE Nov. 26, 1935.

Filed Sept. 29, 1954 2 Sheens-Sheel: 1 1

F. A. SCHLETZ MIXING MACHINE Nov. 26, 1935.

Filed Sept. 29, 1934 2 Sheehs-She8t 2 Patented Nov. 26, 1935 UNITED STATES PATENT OFFICE MIXING MACHINE 9 Claims.

My invention pertainsto machines for mixing ingredients in their original containers and relates particularly to paint mixing machines anti to can holdem therefor.

An object of the inventisn is to provide a simple, durable anal efiicient mixing macbine including an oscillatory can holder of improved coustruction adapted readily so receive and. securely grip cans of different diameters, including cans with bails thereon.

Another object of the invention is to provide' a can holder of the present character including a supporting javv formed. With a she1f adapted' to receive the bailed end of a can and further' including a complemental jaw, the shelf having a slot therein to receive the can bail and the jaws being formed with grooves to receive the bail ears on the can and the adjacent portisns of the' bail.

A further object of the invention is t0 provide a .durable holder of the present character having simple and efiective jaw clamping means constructed and arranged so promote the balancing of the oscillatory structure.

With the foregoing and other objects in view, which Will appear in the following description, the invention resides in the novel combination and arrangement of parts and in the details of construction hereinafter described and. claimed.

In the dravvings, Fig. 1 is an elevational view of a mixing machine embodying my invention; Fig. 2 is a sectional view, taken as on the 1ine 2-2 of Fig. l, With one of the case plates removed, said vievv illustrating the mechanism Within the case; Fig. 3 is an elevational view in detail of one 0f the can holders, portions of the jaws being broken away to show themedial long1tudinal grooves in ehe faces thereof; Fig. 4 is a perspective view 0f the structure shown in Fig. 3, and Fig. 5 is a perspective view, in detail, of the supporting jaw.

Referring 150 the drawings, Will be seen that the illustrated suructure includes a base II), and Gase II thereon having end. plates I2, I3 and a cover plate I4, the end plate I3 and cover plate I 4 being removably securecl the case proper. A rock-shaft I5, extencling through the case I I and journaled in bearings I6 and I1 on the end plates I2 and I3, carries holders I8 and. I9 ab ehe ends thereof. Disposed chiefly wi.thin the c-ase II and spanning the space between the end Walls I2, I3 of said case is an eccentric shaft 20, one end thereof being journaled in .a bearing (not shovvn) 011 the inner face of the end plate -I3 the other end. .thereof being journaled in a bearing 2I on the outer face of the end plate I2. Secured the outer end. of said. eccentrlc shaft 29 is a pulley 22 which is connected through a hell; 23 With a drive pulley 24 on Ehe armature shaft 25 of an electric motor 26 secured to the base IG. On the shaft 2B, Withl'n the case II, is an eccentric disk 21 encircled by an eccentric strap 28 formed With an elongated. boss 29 thereon disposed tangentially of said strap, said boss being formed With a bore longitudinally thereof. This boss 29 forms a bearing which slidably re ceives a rod or arm 33 depending from the rockshaft I5. With theec.centric shaft 29 connected With the rock-shaft I5 through the eccentric disk 21, eccentric strap 28 and arm 33, the -rock-shaft I5 is oscillated 130 -and fro when Ehe motor 26 is operated, the oscillation of said rockshaft being attended With an uneven motion characterized by a relatively quick throw of said shaft in one direction.

The holders I8 anti I9 are similar in construc tion, and a de.tailed description 01 one thereof will apply the other. The holder construction, as best seen in Figs. 3 130 5, includes an elongated stationary jaw 3I and an elongated complementa1 jaw 32, the former being secured 110 an end of the rock-shaft I5 in substantially upright positin by a mounting coupler consisting of a boss 33 With an upwardly projecting ear 34 anal a clepending ear 35. The boss 33 is keyed to the rocksha:ft I .5 and. the ears 34, 35 are bolted t0 the jaw 3I 'by bolts 36, as shown. Projecting from the face of the supporting jaw 3I a1; Ehe lovver end ther.eof is a she1f 31. Thisshelf is formed with a s1ot 38 .centrally longitudinally thereof and the jaw 3I is formed With a groove 39 likewise centrally longitudinally thereof, both slot and groove being intercepted medially thereof by a plane common thereto and which intercepts the axis of the rock-shaft I5. The slot 38, shown as being open ended at the unter end of said shelf 31, is cut back at its other er inner end. 130 the fu11 depth 0f the groove 39 in ehe jaw proper.

The jaw 3I is -arcuate in transverse cr.oss section, the face thereof being symmetrically formed with longitudinal ribs 40 at either side of the grooxze 39, the corresponding ribs constituting paired contacting ridges for engagement with the cylindrical surfaces of cans of different sizes placed -on end upon the shelf 31. Between the upper and lower ends of the supporting jaw 3I and extending from the sides thereof areopposed ears 4I from which threacled guide rods 42 extend outwarclly in parallelism with the shelf 31.

The complemental jaw 32 is substantially of the same construction as the supporting jaw 3l it being formed at its arcuate face with a central longitudinal groove 43 and longitudinal ribs 44 and at its sides with opposed ears 45. These ears 45 have bores or guideways therethrough which slidably receive the guide rods B2, said guide rods being provided with finger nuts 46 threaded thereon and adapted to be turned against said ears 45 cf the jaw 32 to clamp the face thereof against a can and, in turn, clamp the can against the face of the supporting j-aw 3l.

In the use of noy maehine, the finger nuts 46 are, at the outset, turned back on the guide rods 42 to permit of the retraction thereon of the j aw 32 sufiiciently to allow the insertion of a can, bail end down, between the jaws 3l, 32 theretraction of the jaw 32 being facilitated through the use of a finger pieee 41 located at the back of the jaw 32 between the ears 45. Upon applying a can, as at 48, to the jaws 3I, 32 of the holder, it will be disposed in such angular relation with respect to said jaws that the bail, as at 49, will thread through the slot 38 in the shelf as the can is lowered to the shelf. In this relation of the can, the bail ears, as at 50 (Fig. 3), are brought opposite the grooves 39, 43 in the jaws 3l, 32 and are received within said grooves together with adjacent portions of the bail 4l9 when the jaws are clamped against the can. In thus clamping said jaws, it is only necessary to turn and advance the lnger nuts 4@ on the guide rode A2, said nuts in such event being brought againsc the ea1s 45 of the jaw 82, With the result that said jaw is clamped against the can and the can, in turn clamped .against the supporting jaw 3l. 'Ihe threading of the bail 49 in the slot 38 in the shelf 37 disposes the can on end, upside down, in which position thereof, the most eifective mixing action may be had. Also, in disposing the can 48 With the bail threaded in said slot, the ears 53 of the can are direeted into the medialgrooves 39, 43 oi the closing jaws 3l, 32 and thus protected against injurious contact with the faces of said jaws. Furthermore, the bail 49 is br-aced in the slot against any hinging movement relative to the can.

With a can clamped in a holder, the motor 26 is started, a rapid oscillation of the rock shaft I5 and oi the holder thereupon taking plaoe and efiecting a quiok and thorough mixing of the contents oi the can. As a safety fe-ature, I provide at least one of the jaws 3l, 32 with an ear 5l projecting from the face thereof at itsupper end and which serves as a limit stop or abutment to engage the upper end of a can and pre vent it from creeping out between the jaws should any such tendency occur in the mixing oper-ation. In the drawing, both of the jaws 3I, 32 are shown as provided With ears 5I. Upon completing a mixing operation, the finger nuts 46 are turned back on the guide rode 42 and the jaw 32 retracted through the employment of the finger piece l, whereupon the can may be lifted from the holder.

From the foregoing, it will be understood that the present machine constitutes a simple, durable and effective device for mixing ingredients in their containers and partioul-arly paint in original cans including those of the larger sizes fitted With bails. Also, it Will be understood that the holder construction is conducive to the rapid application of containers thereto and the similarly rapid removal of containers therefrom. Further,

it Will be understood that the present holder construction remains similarly balanced in all of as new and desire to protect by Letters Patent is: m

1. In a mixing machine, a horizontally disposed power driven rock-shaft, a holder including'an elongated supporting jaw secured medially at the back thereof and between its ends to an end of said rock-shaft in a substantially upright l position, a can supporting shelf projecting outwardly from the face of said jaw at the lower end thereof, said shelf being formed with a medial longitudinal slot therein said face being transversely concave and formed With a medial longi- S tudinal groove therein and also with longitudinal ribs symmetrically disposed'at opposite sides of said groove, the various corresponding ribs presenting paired .abutment surf-aces for cylindrical cans of different diameters the middle of said groove and the middle 'of said slot being in a common plane intersecting the axis of said shaft, the slot being adapted to receive the bail of a can resting upside down on said shelf and the groove being ad-apted to receive a bail ear of the can and an adjacent portion of the bail, threaded guide rods secured to the opposite sides of the supporting jaw,a complemental jaw similar to said supporting jaw slidably guided on said rode and movable therealong toward and from the supporting j-aw in facing relation With respect thereto, and finger nucs on said rods for clamping the complemental jaw against a can on said shelf and, in turn, clamping said can against said supporting jaw.

2. In a mixing machine, a horizontally disposed power driven rock-shaft, a holder including an elongated supporting jaw secured medially at the back thereof and between its ends to an end of said rock-shaft in a substantially upright position, a can supporting shelf projecting 01'1twardly from the face of said jaw at the lower end thereof, said shelf being formed With a medial longitudinal slot therein, said face being transversely concave and iormed with a medial longitudinal groove therein, the middle of said groove and the middle of said slot being in a. common plane intersecting the axis of said shaft, the slot being adapted to receive the bail of a can resting upside down on said shelf and the groove 5 being adapted to receive a bail ear of the can and an adjacent portion of the bail, a complemental jaw similar to said supporting jaw, means carried b y the supporting jaw and movably supporting the complemental jaw, and means for clamping the complemental jaw against a can on said shelf and, in turn, clamping said can against said supporting jaw.

3. In a mixing machine, a horizontally disposed power driven rock-shaft, a holder including an elongated supporting jaw secured medially at the back thereof and between its ende to an end of said rock-shaft in a substantially upright position, a can supporting shelf projecting outwardly from the face of said jaw als the lower end thereof, said shelf being formed with a medial longitudinal slot therein, said face being transversely concave and formed With a medial longitudinal groove therein, the middle of said groove and the middle of said slot being in a common plane intersecting the axis of said shaft, the slot being adapted to receive the bail of a can resting upside down on said shelf and the groove being adapted to receive a bail ear of the can and an adjacent portion of the bail, a complemental jaw similar to said supporting jaw, means carried by the supporting jaw and movably supporting tlie complernental jaw, and means for elamping the complemental jaw against a can an said shelf and, in turn, clamping said can againsi; said supporting jaw, said means for supporting said complemental jaw comprisv ing two members seeured to opposite sides of the.

supporting jaw and said clamping means including elements incorporated With said supporting members.

4. In a mixing machine, a horizontally disposed power driven rock-shaft, a holder including an elongated supporting jaw secured medial- 1y at the back thereof and between its ends an end 0f said rock-shafi: in a substantially upright position, a shelf projecting outwardly from the face of said jaw at the lewer end thereof, said jaw being forxned With oppositely projecting ears at the sides thereof, threaded guide rode secured to said ears on the supporting jaw, said shelf being adapted so support a can in position between said guide rode, a complernental jaw having opposed. ears thereon slidably guided on said rods and movable therealong toward and from the supporting jaw in facing relation With respect thereto, finger nuts on said rods adapted 130 engage the ears on said complemental jaw and clamp the same against a can 0n said shelf and, in tu1n, clamp said can againsc said supporting 3aw.

5. In a mixing inachine a horizontally disposed power driven roek-shaft, a holder inoluding an elongated supporting jaw securecl medially at the back thereof and between its ends to an end of said rock-shaft in a substantially upright position, a can supporting shelf projecting outwardly flom the face of said jaw ab the lower end thereof, said shelf being formed with a medial longitudinal slot therein, said face being transversely concave and formed With longitudinal ribs symmetrically disposed at opposite sides of a medial line longitudinally of said face, the various corresponding ribs presenting paired ahntrnent surfaces for cylindrical cans of diiferent diameters, said medial line 01 said face and said slot lying in a plane inbersecting the axis of said sl1aft, tne slot being adapted to receive the bail 0I" a can resting upside down on said shelf and the space between the inner pair of ribs being adapted to receive a bail ear of the can and an adjaeeni; portion of ehe bail, a complernental jaw, means carried by t he supporting jaw and movably supporting said complemental jaw, and means for clamping the complemental jaw against a can on said shelf and, in turn, clamping said can against said supporting jaw.

6. In a mixing maehine, a horizontally dis posed power driven rock-shaft, a holder including an elongated supporting jaw secnred medially a1; the back thereof and between its ends to an end of said rock-shaft in a suhstantially upright position, a can supporbing shelf projecting entwarclly f101n Ehe face cf said jaw at the lower end thereof, said shelf being formed with a medial longitudinal slot therein, said face being transversely concave and formed With a medial longitudinal groove therein, the middle of said groove and said slot being in a common plane intersecting the axis 0I" said shaft, the slot being adapted to receive the bail of a can resting upside down on said shelf and ehe groove being adapted 5 to receive a bail ear of the can and an adjacent portion of the bail, a complemental jaw similar 1:0 said supporting jaw, means cariied by the supporting jaw and movably supporting the complemental jaw, and means for clamping the comple- 1 mental jaw against a can 011 said shelf and, in turn, clamping said can against said supporting jaw, one of said jaws having a lug projecting outwardly from the upper edge thereof and constituting an abutment for keeping a can from 1 creeping out of ehe grip of said jaws. 7. In a mixing machine, a horizontally disposed power driven rock-shaft, a holder including an elongated supporting jaw secured medially at the back thereof and between .its ends to an 2 end of said rocbshaft in a substantially uprighi: position, a can supporting shelf projecting outwardly from ehe face of said jaw ab ehe lower end thereof, said shelf being Iorn1ed with a medial longitudinal slot therein, said face being trans- 25 versely concave and formed With a medial longitudinal groove therein, ehe middle of said groove and said slot being in a common plane intersecting ehe axis, 01 said shaft, the slot being adapted to receive the bail of a can resting upside down on said shelf and the groove being adapted so receive a bail ear of the can and an adjacent portion of the bail, a complemental jaw similar 120 said supporting jaw, means carried by the supporting jaw and movably supporting the com- 3 plemental jaw, and means f01' clamping the complemental jaw against a can on said shelf and, in turn, clamping said can against said supporting jaw, one of said jaws having a medially disposed lug projecting outwardly from ii;s face ab the up- 4 per portion thereof and constituting an abutment for keeping a can from creeping out of the grip of said jaws.

8. In a mixing machine, a rock-shaft, a holder including a supporting jaw secured said rock- 4 shaft, a can supporting shelf projecting from said jaw, a pair 0f spaced guides, each secured at an end thereof to said supporting jaw and supported thereby, a complemental jaw mounted 0n said guides and movable therealong toward and from the supporoing jaw in facing relation with respeet thereto, and means carried by said guides and cooperating therewitn and With said complemental jaw to clamp the latter against a can on said shelf and, in turn, to clamp said can against said supporting jaw, said guides constituting side retainers for a can resting 011 said shelf.

9. In a mixing machine, a power driven rockshaft, a holder inclnding a supporting jaw secured to said rock-shaft, a can supporting shelf projecting from said jaw, a complemental jaw, means car1ied by said supporting jaw and movably supporting said complemental jaw, and means carried by said jaw supporting means and cooperating therewith to clamp the complemental jaw against a can on said shelf and, in turn, clamp said can against said supporting jaw, said jaw supporting means and clamping means being arranged partly on one side and partly on the opposite side of the position oecupied by a can 70

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