US2542153A - Meat slicing machine - Google Patents

Description

Feb. 20, 1951 J. MGMILLAN 2,542,153

MEAT sucm; MACHINE Filed April 7, 1947 2 Sheets-Sheet 1 H61. 3Q 29- b 3o 1v //////W /,v 4/

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Patented Feb. 20, 1951 MEAT SLICING MACHINE John McMillan, Coventry, England Application April "I, 1947, Serial No. 739,911 In Great Britain November 7, 1945 Section 1, Public Law 690, August 8, 1946 f 7 Patent expires November 7, 1965 3 Claims.

This invention relates to a meat or like comes- At the present time such machines are made I of difierent sizes, common table sizes being 12" and and this involves the use of differentsized bases from which the tables are to be supported, and, in particular, as regards the largersized table, the overall length of the base has to be somewhere in the neighbourhood of 30" for, say, an 18 stroke, unless use is made of outriggers for supporting the ends of guides for the table-supporting slide.

One of my objects is to provide improvements by means of which the overall size of the base can be reduced.

A further object is to provide a construction with which one type of base may be used for different-sized tables.

A further object is to provide,- as a support for the table (particularly in the case of the larger-sized table), a slide having limited reciprocable movement with respect to a supporting slide which in turn has limited reciprocable movement with respect to the supporting base of the machine.

An application of the invention to a meat slicing machine, the table of which is to be reciprocated by alternately pushing and pulling by hand, is illustrated by way of example in the accompanying drawings, of which Figure 1 is a plan showing the means for supporting the table on the base, table, knife and knife guard being omitted for the sake of clearness;

Figure 2 is a section on the line 22 of Figure 1; and

Figure .3 is an elevation of the machine looking from the left of Figure 1, but showing also the table, knife and knife guard.

In my co-pending application No. 729,910, filed April 7, 1947, which has become abandoned, I show other parts of the slicing machine in which the present slides are incorporated, namely, the rotary knife and sharpening unit therefor. I

In the present Figure 3 the'table is indicated at I, the rotatable knife at 8, and the knife guard, for the comestible being .sliced, at 9, the guard being in a plane parallel to that of the knife edge but set back behind the knife edge dependently upon the desired thickness of the slices to be cut.

In the present drawings a hollow supporting slide l l is mounted upon a base [2 of the machine in an ordinary manner, that is, by being provided with spaced bosses 3 at one edge having aligned holes to slidably receive a supporting bar i 4 fixed in lugs l5 carried by the base. The other edge of the supporting slide has an outwardly-extending tongue it (which may be integral therewith, or secured thereto as by riveting) to work in the channel of a guide member H which is parallel to the supporting bar !4. As shown, the member H is spaced above the base by distance-pieces i8 and'is held in position by screws E9 which also pass through the latter.

Instead, however, of mounting the table 1 directly on the supporting slide H, as is the common practice at the present time, I mount from this supporting slide another slide 20, from which the table i is supported, having limited reciprocable movement with respect to the slide H. Thus, the slide H, which may be of trapezoidal shape in plan as shown, is in the form of a frame, the second or table slide 20 being substantially of triangular shape in plan and being mounted in the interior of the slide II. The latter carries a rigid bar 2! (parallel to the supporting bar M) extending through bearing openings in lugs 22 at the appropriate edge of the table slide 29, the other edge of the latter (the apex of the triangle) carrying a U-shaped part to engage the upper and lower faces of the adjacent straight portion 23 of the supporting slide ll. Conveniently, this U-shaped part comprises a lug 24 and a detachable locating plate 25.

I may mount a rubber or like buifer 26 at each end of the slide II (or on the opposite edges of the table slide 29) to lessen the impact blow between the two slides, and, if desired, I may combine therewith a leaf spring 21 further to deaden the shock. Similar buffers, not shown, may be provided in the ends of the channel of the member I! for coaction with the tongue [6 of the slide I I.

The upper surface of the lug 24, it will be observed, is above the slide 25), and the latter has two bosses 28 which, together with the lug 24, provide a three-point support for the table 1, holes 29 (which may be tapped) being provided in the slide for securing the table in position.

In practice, as the table is reciprocated, the table and table slide 28 can move relatively to the supporting slide H for, say, a travel of five or more inches, and the table, the table slide,

and the supporting slide II can move in unison for a travel of, say, thirteen or less inches, as necessary, to give the desired overall table travel.

The length of the base of the machine is, of course, dependent inter alia upon the travel of the supporting slide H and, in consequence, for a slicing machine adapted to have a table, the overall length of the base is reduced as regards normal strokes, or, conversely, the use of Outriggers for supporting the bar or other guide for the usual slide is obviated. When, however, I wish to supply a slicing machine with, say, a 12" table, I may use the same base as that for the 15" table and, in efiect, mount the table directly on the supporting slide H, using some or all of the screw holes 30 for the purpose. In this case the slide is omitted.

What I claim as my invention and desire to secure by Letters Patent of the United States is:

1. For a comestible slicing machine of the kind including a rotatable knife operating in conjunction With a reciprocable table for supporting the comestible to be sliced, a supporting base providing' spaced parallel guides extending longitudinally of the machine, a hollow slide of trapezoidal shape supported by said guides, and a hollow table slide of triangle-like shape supported and guided by the parallel sides of said trapezoidal slide for movement parallel to said parallel guides, whereby the total reciprocal movement of said table slide is shared by said two slides, said table slide providing the first part of the reciprocal movement in each direction and said trapezoidal slide the second part when said table slide reaches the end of its travel with respect to said trapezoidal slide.

2. A slicing machine including a stationary base, a pair of spaced parallel guides supported thereby, a hollow slide supported by said guides said slide having two spaced guides parallel to said guides first-mentioned, and a triangular table slide having one side supported by one of said second-mentioned guides and the point of the triangle opposite said one side supported by the other of said second-mentioned guides, said triangular slide being disposed mainly in the hollow of said first-mentioned slide.

3'. A slicing machine according to claim 2, characterised in that said first-mentioned slide is of trapezoidal shape, its two non-parallel sides being substantially parallel respectively to the adjacent sides of said triangular slide which are connected to the ends of said one side thereof.

JOHN MCMILLAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,041,763 Farnum Oct. 22, 1912 1,443,789 Humphreys Jan. 30, 1923 1,746,242 Dawson Feb. 11, 1930 1,889,540 Campbell Nov. '29, 1932 1,939,083 Reussenzehn Dec. 12, 1933 2,062,128 Hamerstadt Nov. 24', 1936 2,431,390 Folk Nov. 25, 1947 FOREIGN PATENTS Number Country Date 6,217 Great Britain Mar. 13, 1913 34,875 France Oct. 7, 1935 1st addition to No. 780,022

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