US2037283A - Meat slicer - Google Patents

Description

T. H. sTRAcHAN 'Er AL. 2,037,233

4 MEAT SLI CER Amin M, w36.'

' Filed May 14, 1951 s sheets-sheet 1 .Amig M 3936- T. H. sTRAcHAN ET AL l 03179233 MEAT sLIcER Filed May 14, 1951 5 sheets-sheet 2 pril 14, 1936. T, H, STRCHAN ET AL '2,037,283

MEAT SLICER Filed May 14, 1951 :s sheets-sheet :s

INVENTORS Patented Apr. 14, 1936 MEAT SLICER Thomas H. Strachan and William H. Fryer, Dayton, Ohio, assignors, by mesne assignments, to The Hobart Manufacturing Company, Troy, Ohio, a corporation of Ohio Application May 14, 1931, Serial No..537,316

Y 3 Claims.

The present invention relates to machines such as may be used for slicing articles of food as, for. example, bread, meats, and the like.

'I'he primary object of this invention is to im- -1 prove generally the construction of machines of the foregoing type.

Y A specific object is to improve the construction and arrangement of the carriage which supports the material to be sliced for feeding movementparallel with the knife whereby smoother and more reliablev operation requiring less eiiort may be secured.

A further object is to provide an improved arrangement which: facilitates setting of the upper 115:V portion of clamp in two positions and positively locksvit in. place when set in either of said positions.

Another object is to provide means whereby the upper portionof the clamp may be `readily '20. detached when it is. not tobe used.

A` further object is toprovide. an improved clamp carrier for feeding the material to be sliced transversely of thev knife.

Various other objects, advantages, or features 25. of .this invention will beV pointed out in the following specication and claims or will be apparent after a study thereof and of the accompanying drawings.

In the drawings:

30 Fig. 1 is an elevation of the right side of the slicing machine and illustrates the arrangement of the carriage, the clamp, and the guiding rails for the carriage.

Fig. 2 is a view in elevation of thefront end 85 of the carriage and illustrates the construction and arrangement of the guiding rails: and the anti-friction devices supporting the carriage for movement parallel with the knife.

Fig. 3 is a vertical section on the line 3--3 of 40 Fig. 4.

4 is a rear elevation of the carrier supporting the clamp for movement transversely relative to the knife.

Fig. 5A is a detail view in front elevation of the mechanism for holding the upper clamp in either ahorizontal or a. vertical position.V

Fig. 6 is a verticalrsecton on the line 6 -6 in Fig. 5.

59 The base of the machine is designated by the numeral I0` (Fig. 1) and supports the driving mechanism for the knife I I, the adjustable gage plate I2, the upper knife guard I3, and the cover plate -I4 forthe knifeA II. Since all of the fore- 55 goingy mechanisms or parts are now well-known 29 for guiding theV clamp. carrier.

in the art, theyneed not be described in detail herein.

The base I0 supports the guiding rails I5 for the carriage framet I6; by means of brackets I1 attached tothe right edge of said base, suitable 5. screws I8 serving tormly clamp the rails I5 to the brackets II. It will be observed by reference to Fig. 2 that the rails I5 areinclined transversely of their axes so that an edge of each is adaptedV to slidably support the carriage frame I6 Vby 10 means of anti-friction rollers I9 having V-shaped grooves conforming to the upper edge of the rails I5.

The rollers I9, are mounted in anti-friction bearings sup-ported. by adjustable carriers 15 which are screwed into threaded holes in the. frame I6 and are slotted to permit rotation by means of a screw driver or some such tool. The carriage frame I6 is slotted or split adjacent each of the carriers 29 as at.2I (Fig. 1) and provided. 20

with clamping screws 22. It will. be obvious that the carriers 2l)v may be readily turned by loosen.- ing the clamping screws 22 andutilizing a screw driver to turn the carrier.

In this manner the carriers, may be adjusted friction rollers 23 carried by the frame I6 and 3Q bearing against the lower inclined` edge of rails I5. Itv will be seen that the construction just described permits the carriage to be moved parallel with the knife with little effort.

The bracketsV I'I which` support the ends of the 35 rails I5 are formed with upward extensions 24 which cooperate with downwardly extending projections 25 formed in the carriage frame I6 to limit the sliding movement of said .carriage parallel to the knife II. If desired, any suitable shock absorbing devices such as rubber cushions may be mounted upon the extensions 24 or 25 to minimize shocks due to a too rapid motion of the carriage parallel with the knife II which would cause severe jars when the projections 25 strike 45 the extensions 24.

The carriage frame I6 has an inclined portion 26 (Fig. 1) upon which rests the tray 21 adapted to support the material to be sliced, and is provided with two extensions 28 vwhich support a cross bar 50 The clamp comprises twov members 30, 3| vhaving sharp spikes set in the surfaces adapted to make contact with the materialY to be sliced. and hold said material firmly while being sliced. 'Ihe lower 55 clamp member 30 is formed of a flat strip of metal bent at right angles and attached to the clamp carrier 32 by means of thumb screws such as indicated by the reference numeral 33 (Fig. l). The upper clamping member 3| is pivotally mounted upon the lower end of a sliding bar or rod 34 by means of a stub shaft 35 pinned to the bar 34.

The purpose of pivoting member 3| to bar 34 will later be more fully explained. Said bar 34 is slidably mounted in a bracket 36 detachably mounted upon the carrier frame 32 and iixed to said bar is a handle 3l provided for the purpose ber 3| which may be retained in its uppermost po- I sition by means of a spring urged catch 38 pivotally mounted upon the bracket 36 and having a tongue or nose engageable with a slot in-the bar 34 to retain the latter in raised position.

The entire assembly comprising the clamping members 30, 3|, the bracket 36, and the clamp carrier 32 is slidable transversely relative to the knife along the `bar 29. The carrier 32 is provided with grooved antifriction rollers 39 similar to the rollers I9 and mounted in similar manner in antifriction bearings 40 mounted in slotted carriers 4| similar to the carriers 20. There are four of the rollers 39, two resting upon the upper edge of bar 29 and two in contact with the lower edge of said bar, and the frame 32 is split adjacent each carrier 4|4 as at 42 and provided with clamping screws 43 similar to the clamping screws 22. In order to simplify assembly of the carrier 32 upon the bar 29 and reduce the costof replacements of worn or broken parts the carrier 32 is made in three parts 32, 32a, and 3217, the part 32a being attached to the part 32 by means of machine screws while the part 32h is attached to the part 32 by means of suitable bolts. The upper pair of rollers 39 is mounted in the part 32a while the lower pair is mounted in the part 32h.

The bracket 36 is not permanently fastened to the carrier 32 but is adapted to be readily detached when it is not desired to use the upper clamping member and for this reason the bracket 36 is provided with an angular shoulder 44 which is adapted to t against the top edge and rear face of the frame 32 (Fig. l) and has an inclined hole cooperating with an inclined stud 45 screwed into the carrier 32 and locked in place by a set screw 46.

The bracket 36 is also provided with a boss 41 the surface of which is at right angles to the axis of the stud 45 and against which a wing nut 48 may be screwed to holdthe bracket rmly in place on the upper edge of the carrier 32. It will be clear that the bracket may be easily removed by simply unscrewing the Wing nut 48 and sliding the bracket along the axis of the stud 45 until it is completely disengaged therefrom. The lower clamping member 30 maybe readily removed if desired by unscrewing the thumb screws 33.

It is often desirable to be able to slice very thin slabs of material or remnants of food such as the butt end of a piece of meat which is too thin to be held between the clamping members 39, 3 I, therefore, the upperrclamping member 3| .is-adapted to be turned sothat the spikesthereon are directed toward the plane of the-knife thereby permitting impaling of the material to be sliced upon the spikes. It has already been stated that the upper clamping member 3| is pivotally mounted upon the stud 35 permitting said member to be swung from the position shown in solid lines in Fig. 5 to that indicated by broken lines in the same gure. In order to retain the member in either of said positions releasable means is provided comprising a plunger 49 slidably mounted in a hole in the bar 34 and adapted to register with either of two holes 50 formed in one of the hubs of the forked member 5| supporting the clamping member 3|. A second plunger 52 is mounted in a hole in bar 34 below the plunger 49 and with its axis parallel to the axis of plunger 49.

A hole 53 is provided extending crosswise oi the i holes guiding the plungers 49, 52 and provides a chamber permitting a limited movement of a screw` stud 54, joining both plungers 49, 52, in the direction of the axes of the plungers so that both plungers move as a unit to the left (Fig. 6) whenever the plunger 52 is pressed to the left Vby the operators nger, this movement being resisted by a spring 55 pressing against the left end of the plunger 52. It will be clear that the clamping member 3| may be set in either of the positions Vshown in Fig. 5 by merely pressing in the plunger 52 until the plunger 49 becomes disgengaged from the associated hole 56 and then turning the clamp to the desired position where the plunger 52 is released and plunger 49 is permitted to enter the other hole 50 thereby locking the clamping member in set position.

The present invention has been shown as embodied in a specific form solely for the purpose of illustration, therefore, it is not desired to be limited either to the specific construction illustrated or the specific machine sho-wn in the drawings as it is contemplated that the invention may be varied as to details and arrangement in order to adapt it to conditions found in practice.

We claim:

1. A slicing machine having a lower clamp member, a single support to which said member is secured, an upper clamp member, a single support for the upper clamp member, and means for removably mounting the second named support on the first named support, comprising a notch or shoulder formed inthe second named support whose walls intimately contact with two coacting surfaces in a projecting part of the first named support, and clamping means operable to exert a force in a direction inclined to both of said coacting surfaces and clamp each wall of said notch or shoulder into contact with its corresponding coacting surface.

2. In a slicing machine, a movable clamp member and a support therefor, a xed clamp member and a support therefor, said last named support having two supporting surfacesY at an angle to each other 'to form a wedge adapted to carry the entire weight of the movable clamp member and the rst named support, the latter having a shoulder or notch formed therein adapted to receive the wedge, the walls of said shoulder being adapted to closely contact with the aforementioned surfaces on the second support forming the wedge, and a single clamping means mounted on oneV of said supports adjacent the intersection of the two surfaces on the second named support and inclined to both said surfaces, and adapted to securely clamp both supports together by a wedging action between the walls of the shoulder on the one support and the two supporting surfaces on the `other support.

3. A slicing machine having a base, a cutter mounted on the base, an article carriage slidably mounted on the base for reciprocatory movement parallel with the cutter; a guide rail secured to the carriage and extending in a direction transverse of the knife, said guide rail consisting of a flat bar having opposite edges triangular in section; a clamp supporting structure; and means for slidably mounting the clamp structure on the guide rail comprising a. pair of housings secured to the clamp structure, carriers removably retained in holes in said housings, means carried by the housings adjacent said holes for securely clamping the carriers in the housing after the carriers have been inserted into their holes, antifriction bearings mounted 1n said carriers, and

grooved rollers riding on the opposite edges of the guide rail and supported by the antifriction bearings, the grooves in said rollers being triangular in shape and adapted'to coact with the triangular edges of the guide rail to prevent displacement of the clamp structure relative to the rail other than longitudinally thereof.

THOMAS H. STRACHAN. WILLIAM H. FRYER.

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