US1987029A - Patty forming machine - Google Patents

Description

Jan. 8, 1935. w. F. SHELGREN PATTY FORMING MACHINE 2 Sheets-Sheet 1 Filed Jan 21. 1933 I I'll v Z/TFfiZeZare I Jan. 8, 1935. w. F. SHELGREN 1,987,029

PATTY FORMING MACHINE Filed Jan. 21, 1933 2 Sheets-Sheet 2 Patented Jan. 8, 1935 mm FORMING MACHINE Walter F. ,Shelgren, "Bradford, Pa.

6 Application January 21, 1933, Serial No. 652,916

Claimsf (01, 107-8 .lhis invention relates to an improvedpatty forming machine and while being particularly designed'for forming rawhamburg patties, still, I donot wish to be limited in thisxrespect as the 5 machine is well adapted for i the dispensing of other edibles. I g n The invention seeks, as one; of its principal objects,,to provide a machine'which m'ay be used in restaurants or lunchrooms or on lunchwagons or the like for easily and quicklyfdispensing raw, hamburg patties ready to be 'cookedwithout. the necessity for manually forming "thepattiesl The invention seeks, as a further object-to pro I vide a machine which will dispense raw hamburg patties of uniform size and weight, whereinthe ground meat will'be protected against contami nation-and wherein-the machine maybe readily taken; apart and cleaned so as to be maintained in-"a thoroughly sanitary condition. I

And the invention seeks, as a still further object, to provide a machine whichwill be characterized by structuralsimplicity, sturdiness and durability as well as ease of operation.

Other I n not specifically mentioned in the foregoing, will be apparent" during the course of the following description. 6 In the drawings,Figure 1 is of my improved'machine, 6 I

Figure 2 is a vertical sectional view on the line 2-20fFigure1,

- Figure 3 is a transverse line 3+3 of Figure 1, V H Figure 4 is a transverse sectional View particu larlyshowing the forming knife, v U

FigureS-is a detail plan view of the tension a front elevation sectional view on the lever for the follower spring of the device, and

Figure 6 is a detail plan view of the ejector spring employed.

Incarrying the invention into effect, I employ a flat substantially semi-circular lobate base 10 having a base" flange 11 at its perimeter, and pro-. jecting from said flange, flush 'with the upperface of the base, are equi-distantly spaced radial.

ears 12. At a point midway of the concave portion of the front edge of the base, the flange 11 is thickened to form a boss 13 and depending from said flan e, at the front lobesjof the base; are L'- shapedbrackets l4. As shown'in'the drawings,

the base is adapted to rest flatupon a table or the, like with the brackets 191 abuttingithe adjacent edge of the table so' that the midpoint of the ,con-

cave portion ofthe frontedg of the base will be flush with the adjacentj edge of the table, and

screwed through said brackets are clamp screws and incidentalfobjects of the invention,'

for rigidly securing the base to the table.

thus employing'a pair of brackets to coactwith the edge'of the table at spaced points, skewing. of the base relative to the table will be obviated.

Overlying the base, in spaced parallel relation thereto, is a top plate 16. This platejis 'offithe same shape as the base, being provided with ears 1'? registering with the ears 12, and extending freely through the ears of the top vplate. but screwed into'the ears of the base arewing bolts which, for convenience, have been indicated atfl8", 19 and 20. These bolts serve, of course, torigidly connect the top plate with the base. Formed on the top plate 16, at its upper side, is'anup'standing medially disposed boss 21 tapered toward the'mid'j point of the concave portion of the front edgeof the base, and extending through the apex of said boss 21 is a vertically disposed tubularl'post22. fixed at its lowerend in the boss '13 of the base. Fitted in the apex of the boss 21,,at its forward edge, is a set screw 23 which impinges againstthel' post to secure the same in the top plate. h

Formed medially in the top plate 16 is .ajdiS: charge opening 24 "andpivoted medially upon, the, post 22 is a substantially semi-circular forming knife 25 snugly but rotatably"accommodatedbe tween the top plate andthe base. '"As seen Figure 4ft'he knife '25 is pro'vided'with spaced patty formingopenings26 and extending from r the forward edge of, said knife 'is' an operating I lever 27 equipped at its outerend ,withf'an upstanding handle 28. In the present iristanceQI have shown the openings] 26 "as being-,circular. However, the exact shapeof these openings may be varied as desired asmay also'the. size of the openings in accordance with the sizeand weight of thepatty' which it is desired to form. .(As shown-1firitFi 1 Q'2, the lwa11s of the openings 26 are inclined. downwardly, the 'diam'eterbfthe openingsbeing slightly greater at, the bottom 'ofv the knife than at the top thereof so that meat patties formed in said openings may be'readily dischargeddownwardly therefrom. The"operi ings 26 are'of-the same diameter as the dis-. charge opening 24 and are so positioned that" when the lever '27 is swungto the right to en, gage the bolt18, as shown in Figure 4i,-one1of" the openings 26 will register with the discharge pass ing while, when the lever 27 is swung tothe left to engage ,the bolt 19, the'other; of theopenings 26'will register with the discharge opening. bolts 18 and 19 thus providestops for lir niting the movement of the formingplatei J5 At ,the'upper end of the discharge opening, 24,. the boss21' of the top plate '16is recess'dtoproa brace the upper end with the wall ofthe'hhpper to preventthe contents of the hopper from forcing itself upwardly; past the follower, and screwed at its lower end into the follower, centrally thereof, isaistm" 33 surrounding which is a spring 34.. Slidable. on the post 22, as well as on the stern 3301' the fol-L" lower, is a tensioning lever 35- which is substantially T-shaped to provide handles 36 at one, end.

of the lever while at its opposite end the" lever provided, as seen inFfigure S, with a semicircular fin 37. At one extreme; weaver carriesa hardened bushing38 which freely receives thestem 33' therethrough while, at its opposite extremity, the lever carries a hardened bushing I 39 whichfreely. accommodates the post 22.

by grasping the .1iandles 36 with the, fingers and. placing the-thumbs beneath the fin 37 the lever may be rocked to a horizontal position whereupon itirnay be freely shifted downwardly along thepost 22 as well as along the stem 33 of the followerjfor' compressing .the spring 34. Then,

tilting the lever tothe positionshown in Figure 2, the bushing 3'9 will be caused to grip-the pest 22 for securing the lever in adjustedposition and maintaining the tension of the spring.

Fixed at its ends to the " bolts 18 and 19 is a substantially V-shaped spring 40f bent at its ex- 7 tremities to provide'loo'ps' il' which accommo upper sideof the forming knife 25, theejctor tion that when the leverj27 isfswung to. abut the tov engage the ibolt 19, the ejector d'ate'fthe'bolts therethrdu'gh while at its ape nthe spring'i's bent "to 'provide an eye 42. Thissp'ring carrie's'apup-shaped ejector 43 which is preferably of skeleton construction,'andfconnecting the ejector with the spring is a bolt? which .extends through the eye 42"offtlie. spring and" is equipped at its upper end with a handle '45.

concave side "of the ejector is, particularly seeniriv Fi ure 2; pr'e's entedtdownwardly and themajorfdiameter'foff said ejector. islslig'htly less than the diameter. of "the openings .26 at the being supported by' the springj40 in such posib'olt18 the ejectorgwill be disposed overtonk'e bf the opemngs26'while, when; the lever is swung I willifb'e disposed over the other of. said openings. g

In use, the hopper 30 'i's filled .with'grund Vmeat, thefollower 32 isdisposed'iwithinthe,

upper end of the 'hopper'and' the lever 35'- adjusted downwardly on the post 22, as previously explained; for tensioning the spring 34. sonth'at the spring will thus function to force the fol?! lower downwardly within the, hopper and'co'm pressthe meat. The concave face of the follower will, of course, tend to'gatheri the meat tofitting sealing ring.

wardthe center of the follower and thus-overcome any tendency of the ground meat to force past the edge of the follower, thereby eliminatingthe necessity for the use of any tight Thus, when the lever- 27' of thegrmingknife. 25 is swung to the posi-V ,1 in Figure 4, so that said leverabuts the bolt 18, the opening 26' of said knife 'disposedin register with the discharge opening 24.

tion's able for tensioning. said spring,

memes of the top plate 16 will be filled with meat. When the lever 27 is next swung to engage the bolt 19, the other of the openings 26 in the forming knife will be moved to a position in register with the discharge opening 24 to be filled with meat while the filled opening will be moved to a position at the front of the machine beneath the ejector 43. Accordingly, by striking the handle 45 the ejector will be depressed for dislodging the meat from. the filled openingof the forming knife and, of course, the meat so'dislodged will be in the form of a circular cake or patty. Due to the fact that the ejector is of concavo-convex construction, the ejector strike the formed meat patty at its edge only where it clings to the wall of the forming'bpeningof the knife. .The thin edge of the pattyianot suflicientrto cause the patty to hang to the ejector so that the dislodged patty freely' falls from the ejector, Thus, the forming knife 25 may be oscillated back and forth to deliver formed hamburger patties until the supply of meatin the hopper 30 is exhausted and, of course, tlie.lever"35 may be shifted downward- 1y fromjtimefto; time for'renewingthe tension on the spring 34 so that the follower 32 will e f; fectively feed the meat supply into openings ofthe formi'ng knife, f a a Havin thus described. the invention, I claim:

'1. 'A device oil the character described;includv ing a base, a hopper carried thereby f'or containing a supply of material, means pivoted upon the base to oscillate over the base' and under-the hopper andi'at' its limit of movement in eitherdirection to receive a charge from thehopper,

and simultaneously deliv'era previouslyreceived chargelat a point or discharge a follower fonth e material'within the hnpper, a spring actingon the follower, and forv adjusting tension ingsaid spring. p r p 2'. A device of'thecharacter described includ: ing a base, atop plate carried rthereby Jami. provided with a' discharge openinggapost upstand ing from the base, a-hopper carried by the top plate to communicate with said, opening, a formingf knife pivoted upon'the -post, between thebase andtop plate and provided with a pattyform; ingopening the knife beingmovable-in one directicn to dispose said pattyIforming. opening in register with said discharge opening-toreceive a predetermined quantity of material from.-the-hopcper and in; the opposite direction to, deliver: said quantity 'of material for use,:. a springrretracted ejector movable to-dislodge said quantity of-fmaterial from said patty forming opening after-litheforming knife, hasbeen shifted in the lattendi-l recuon, a follower for thegmaterial within thes;

hopper and provided with a stemeaispring surrounding said'stem, and a lever mounted-ppon; the post to coactw-ith saidspring and adjust- 3." A device 'of' the. character described ing a 'baseja top plate carried thereby, boltsf detachablyfconnecting the. top plate" with the base, the top plate being provided with a discharge. opening, a hopper carried by the top plate to (communicate with said opening, a forming. knife. pivoted. to oscillate! between the base and top plate andprovided with a patty, forming opening, the knife being movable in one direction to dispose said pattyfforrning opening in,reg-- ister with said ,dischar'ge I predetermined quantity fof material t im. the. hopper and .in the opposite, direction to ,de-j,

liver said quantityfof "inaterialffonuse, a ever? opening to receive a carried by the forming knife and engageable with said bolts selectively for limiting the oscillatory movement of the knife, a spring carried by said bolts, and an ejector carried by said spring and movable to dislodge said quantity of material from said patty forming opening after the knife has been shifted in said last-mentioned direction.

4. In a device of the character described, a base, a post upstanding therefrom, a hopper, a follower, a spring for advancing the follower within the hopper, and means adjustable upon the post for tensioning said spring and angularly movable to grip the post for securing said means in adjusted position.

5. In a device of the character described, a base, a post upstanding therefrom, a hopper, a follower having a stem, a spring surrounding said stem, and a lever adjustable upon the post for tensioning said spring to advance the fol-,

lower and angularly shiftable to grip the post for locking the lever in adjusted position.

WALTER F. SHELGREN. [L. s.]

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