US1925848A - Slicing machine - Google Patents

Description

Sept. 5, 1933.

Filed Apfil 7, 19:50

3 Sheets-Sheet Sept. 5, 1933. m l,925,848-

SLICING'MACHINE Filed April 7, 1930 3 Sheets-Sheet 2 Sept. 5, 1933. A. RUBIN SLICING MACHINE y Flled April 7, 1930 3 Sheets Sheet 5 ZIG.J

Patented Sept. 5, 1933 PATENT OFFICE SLICIN G MACHINE Adolph Rubin, St. Louis, Mo., assignor to Hussmann-Ligouier Company, St. Louis, Mo., a corporation of Delaware Application April 7, 1930. Serial No. 442,097

3 Claims. (01. 146-158) Fig. 3 is a cross-section of the machine shown in Figs. 1 and 2.

Fig. 4 is a fragmentary sectional detail illustrating the mechanism for imparting reciprocatory movement to the cutting element of the machine.

In thedrawings, wherein is shown for the purpose of illustration, merely, one embodiment of the invention, A designates the improved slicing machine generally, said machine comprising a suitable base 1 which preferably is of inverted hollow construction, as shown in Fig. 3. At the forward side of the base 1 same is provided with inturned extensions 2 to'which suitable feet 3 are fixed, and at the'rear'side of said base a pair of outwardly extended brackets 4 are fixed (Figs. land 3) which support a pan P. Each of the brackets l is provided with an upwardly extended portion 5 which contacts with a portion of the rear face .ofthe base 1, said upwardly extended bracket portion being provided with centering pins 6 which are inserted into apertures in the rear wall of the base for the purpose of locating the bracket portions with respect to the base; '7 designates screw-threaded fastening devices, one of'which is associated with the upwardly extended portion of each bracket, the screw-threaded shank portion 7' thereof being extended through an opening in the upwardly extended bracket, portion and being screwed into a screw-threaded aperture in the rear wall of the base. Each bracket 4 is provided with a circularportion 8 which provides a foot 9 which aids in supporting the machine.

Atthe approximate longitudinal, center of the rear wall of the base 1a recess 10 is located, in which the lower portion of a vertically disposed cutting element orimife 11 is arranged. The recess 10 receives a plug 12 which closes said recess at the rear thereof, and this plug is retained in place by means of screws 13 which are screwed into the rear wall of the base in such manner that the head portions thereof overlap the plug. The plug 12 is cut away, as

indicated at 14 in Fig. 3, to provide a guideway for the cutting element 11, and said plug is provided with an additional cutaway portion .15 which provides space for the operationof an element which will be subsequently described 0 herein, by which the cutting element is actuated. The recess 14 formed in the plug 12 provides walls which contact with the cutting element at its rear face and side edges, and the forward face of said cutting element contacts with the face 16 of the rear wall of the base 1. Because of this arrangement a guideway is provided which will efiectively guide the cutting element during vertical reciprocatory movement thereof. The rear wall of the base 1 is provided with rearwardly extended portions 17 at opposite edges of the depressed central portion 18 in which the plug 12 is arranged, and the rear face of the central portion 18 is inclined, as shown clearly in Fig. 3.

Secured to the portion 17 of the base 1 at the right-hand end of the machine when viewed from the front is a plate 19, which is provided with a horizontal flange 20 through which fastening devices 21 pass which secure said plate to the base 1. The plate 19 at its upper end is provided with a laterally extended flange 22., and adjacent to the inner edge of said plate an upstanding bearing 23 is provided. Rigidly supported by the bearing 23 is a pin 24, which extends in a direction parallel with the plate 19 and beyond same, and pivotally supported by said pin is a guiding member 24. The guiding member 24 comprises a vertically disposed element having a guideway formed therethrough, and 9 said guiding member has ears 25 formed thereon which embrace the pin 24 in a manner to pro vide for pivotal movement of said guiding member with respect to said pin. The upper end portion of the cutting element 11 is arranged in the guideway of the guiding member 24, and said cutting element reciprocates in said guideway when reciprocatory motion is applied thereto.

26 designates a gauge plate which serves to regulate the thickness of the slices produced by the slicing machine. This plate is arranged in horizontal alinement with the plate 19 already referred to herein at the opposite side of the cutting element 11, and as willpresentlyappear, is arranged for adjustment so that its inner edge may be moved transversely with respect to the cutting edge 11f of the cutting element. The gauge plate 26 is provided with a plurality of rearwardly extended cars 27, there being two pairs of these ears, and the ears of each pair being openings formed in the base .1 is a pair of vertically arranged rods 30, and said rods 30 at their upper ends are rigidly fixed to the ends" of the arms opposite to the ends thereof, which are pivotally connected to the gauge plate. The

lower faces of the arms 28 rest on the top'face of the base 1, whereby the elevationof the plate 26 is maintained, and also the rods 30 are rotatable to swing the outer ends of the arms 28 in an'arc of a circle and in this manner adjust the gauge platefforwardly and rearwardly with respect to the cutting edge 11* of the cutting element 11.

Rigidly fixed to thelower ends of the rods 30 is a pair of operating arms 31 which are pivotally connected together at their'outerends by a link 32. The link 32 is preferably curved,as shown in Fig. 1, so. as to avoid having a portion thereof located beneath the aperture 33, and 34 designates a bell-crank lever which has a leg thereof pivotally attached to an end portion of the link 32,

The bell-crank lever 34 is pivoted at 35 to the base 1 and includes an elongated operating arm 36 which extends outwardly beyond the base of the machine. The base 1 is provided with a plurality of spaced extensions 37 arranged in arcuate formation, and the bell-crank lever 34 is provided with an element 38 which is movable into the spaces between the various adjacent extensions 37 so. as t0 lock said bell-crank lever against accidental movement after same has been set. Also, the base 1 has fixed to it a plate 39 provided with graduations with respect to which the-operating arm 36. of the bell-crank lever 34 is moved, said graduations indicating the degree of movement of the operating arm 36 to obtain slices of predetermined thicknesses.

Supported beneath the top wall of the base 1 of the machine is a suitable electric motor M arranged with its armature shaft M disposed vertically, as shown'clearly in Fig. 3. The armature shaft M of the motor M has fixed thereto by means of a key 40, for instance,-an element 41 (Fig. 4), said element being provided at its upper portion with'an externally screw-threaded portion 42, and having an inclined annular face 43.

44 designates an internally screw-threaded ring which is screwed on the screw-threaded portion 42 of the element 41, said ring being-provided with an inclined face 45 which is arranged in opposed relation with respect to the inclined face 43. 46 designates an annularmember which surrounds the element 41, said annular member 46 being provided with an annular inclined face 47, and being. provided with an internally screwthreaded portion; 48. Screwed into the internally screw-threaded portion 48 of the member 46 is a ring 49 which is provided with an annular inclined face 50. The annular inclined faces 43, 45, 47, and 50 provide a ball raceway in which antifriction balls 51 are arranged. r r

arm 52 is extendedthrough anaperture 54 (Fig.

4) formed in;the loweriendportionof the cutting element 11, and the ends of legs of the yoke porextended parallel with and in slightly spaced wardly and rearwardlywith respect to theicarriage, and because the eye portions of the arm tion of said arm are pivoted to a pair of upstanding lugs formed on the casing of the electric motor M. The annular member 46 is provided with a forwardly extending element 55 which is circular in cross-section and extends into a correspondingly shaped opening 56 in the arr-11 52.

I A very important feature of the mechanism just described is that the element 41 is fixed on the armature shaft M of the motor in a plane at an acute angle relative to the axis of said armature shaft, hence, when the armature shaft is rotated,

the element 41, and with it the ring 44, will fwobble. .This fwobbling motion is transmitted through the anti-friction balls 51 to the annular member46 and ring 49, and because the member 46 is connected to the arm 52 through the instr'ume'ntality; of the element 55, the outer end portion of said arm 52 will be caused to rise and fall in an arc of a circle, whereby vertical reciprocatory movement will be imparted tothe 9 cutting element 11. Due tothe wobbling character ofthe motion of the annular member 46 there will be slight oscillating movement between the element 55 and the wall of the opening 56 in whichsaid element is extended, and the circular cross-sectional shape of said element and opening will permit such movement.

The base 1 of the machine is provided with a recess 57 (Fig. 3) in which a guiding member 58 is arranged. This guiding member is preferably in the form of a tubular element which is extended longitudinally of the base 1 and is supported at its opposite end by suitable means, such as the members 59 which are fixed to the base 1. Also the base 1 is provided with a track 60 which likewise extends longitudinally of said base.

Supported by the guiding member 58 and the track 60 for movement longitudinally of the machine is a carriage 61. The carriage 61 includes a tubular element 62 which embraces the guiding member 58, and also saidcarriage is provided with suitable shoes'63 which rest upon the top face of the track 60. When'viewed in front elevation the carriage ,61 is substantially v hshdped (Fig. 2) and the upstanding wall 61' at the right-hand side of the'carriage is. provided with spaced apart lugs 64 which support a rod 65 (Fig. 1). The rod 65 extends from front to rear of the carriage, and slidingly supported thereby is a supporting element 66, said supporting element being provided with eye portions 67 through which the rod extends and including a downwardly extended portion 68 and a horizontally extended portion 69, the latter of which is relation with respect tolthe top face of the bottom wall of the carriage. 'As already stated, the supporting element 66 is" slidable with respect to the carriage 61, and tracks '70 are provided at the top face of the bottom wall of the carriage to facilitate suchmovement.

Mounted for sliding movement onthe rod 65 is a follower which comprises an arm 71.provided with eye'portions 72, through'which the rod 65 is extended, and a substantially 'L-shaped plate 73 fixedto said arm. The L-shaped plate '73 iscomprised of a horizontally disposed portion which is arranged parallel with and in slightly spaced relation with respect to the portion 69 of the supporting element 66 and a substantially vertical; plate portion formed. integral with the horizontal portion. 1 The follower is providedwith a handle 74 for moving same for- 71 of the follower are interposed between and in contact with the eye portions 6'7 of the supporting element, said supporting element will be moved with said follower. The portion 69 of the supporting element 66 is provided with upstanding prongs '75, and the horizontal and vertical portions of the L-shaped plate of the follower are provided with prongs 76 which extend downwardly and forwardly, respectively.

The base 1 is provided with a depression 77 (Fig. 3), which is located between the portion of the base which supports the track 60 and the rear, upstanding flange portion '78 of said base. Because of its location, the task of keeping this depression clean may be rather difficult. The present invention, therefore, includes the use of a strip of substantially U-shaped metal '79, which is snapped in place in this depression by having its edges engaged beneath the track 60 and an element 80. Also, this strip is provided with a pair of openings 81 which are arranged in registration with similar openings 33 and 82 formed in the top wall of the base 1. The carriage 61 is provided with a brush comprising a downwardly extending piece of fiber 83, or other suitable material, which is shaped to fit closely within the cavity provided by the U-shaped strip, and as the carriage is moved back and forth with respect to the base 1, the brush 83 will move any scraps or cuttings which fall into the cavity provided by the U-shaped strip to the openings 81-82 at opposite ends of the base 1, through which said openings said scraps or cuttings will fall. When it is desired to cl an and polish the U- shaped strip, same may be readily removed from its place in the structure by springing the edges out of engagement with either the track 60 or the element 80, whereupon said strip may be lifted out of the cavity 7'7.

In the operation of the improved slicing machine, the material to be sliced is supported by the carriage 61 and said material is moved rearwardly of said carriage by the follower. If desired the material being sliced may be clamped between the horizontal plate portion of the follower and the portion 69 of the supporting element 66 during such rearward movement of said material, or, if preferred, the material may be moved rearwardly of the carriage by arranging the rear end thereof in contact with the vertical plate portion of the follower and moving said follower rearwardly. The operator grasps the handle 74 and moves the carriage back and forth with respect to the machine, at the same time keeping the material pressed rearwardly by forcing the follower in that direction, and each time the material is moved from left to right of the machine and with respect to the rapidly reciprocating cutting element, a slice is out therefrom, which slice falls on the pan P.

When it is desired to remove the cutting element 11 from the machine the fastening devices 13 may be removed and the plug 12 displaced from its position. The lower end portion of the cutting element may then be moved rearwardly, the guiding member 24; swinging on the pivot 24 in response to such rearward movement of the lower portion of the cutting element, and when the cutting element has been moved to the approximate position in which it is shown by dotted lines in Fig. 3, it may be moved downwardly so as to withdraw the upper portion thereof from the guiding member 24.

I claim:

1. A slicing machine comprising a cutting element, means for supporting said cutting element for straight line movement, said means including a pivotally mounted guiding member located at an end of said cutting element, means for subjecting said cutting element to reciprocatory movement, and a carriage movable transversely of the path of movement of said cutting element for supporting material being sliced, said pivotally mounted guiding member being fixed with respect to said cutting element when said cutting element is subjected to reciprocatory movement.

2. A slicing machine comprising a cutting element, means for supporting said cutting element for straight line movement, said means including a pivotally mounted guiding member located at an end of said cutting element, and a second guiding member located at the opposite end of the cutting element and detachable from the machine, means for subjecting said cutting element to reciprocatory movement, and a carriage movable transversely of the path of movement of said cutting element for supporting material being sliced, said pivotally mounted guiding member being fixed with respect to said cutting element when said cutting element is subjected to reciprocatory movement.

3. A slicing machine comprising a cutting element, means for supporting said cutting element for straight line movement, said means including a pivotally mounted guiding member located at an end of said cutting element, and a channeled guiding member located at the opposite end of the cutting element and detachable from the machine, means for subjecting said cutting element to reciprocatory movement, and a carriage movable transversely of the path of movement of said cutting element for supporting material being sliced, said pivotally mounted guiding member being fixed with respect to said cutting element when said cutting element is subjected to reciprocatory movement.

ADOLPH RUBIN.

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