US1309417A - Rinding-knife for slicing-machines. - Google Patents

Description

A. R. LUSCHKA AND J. FOLK. RINDING KNIFE FOR SLICING MACHINES.

APPLICATION FILED MAY SI, I9I8.

"rm: COLUMBIA mmoumvn c0., WASHINGTON. D. c.

A. R. LUSH A AND J. FOLK.

BINDING KNIFE FOR SUCH-JG MACHINES.

APPLICATION FILED MAY 31, I918.

3G?! 1-1 g I Patented July 8, 1919.

2 SHEETS SHEET 2.

THE COLUMBIA PLANOGRAPH co WASHINGTON. D., c.

UNITED STATES PATENT orricn.

AUGUST It. LUSCI-IKA AND JOSEPH FOLK, F LAPORTE, INDIANA, ASSIGNORS TO U. S. SLICING MACHINE COMPANY, OF LAPORTE, INDIANA, A CORPORATION OF INDIANA.

BINDING-KNIFE FOR SLICING-MACHINES.

Application filed May 31, 1918.

To all whom it may concern:

Be it known that we, AUGUST R. LUSOHKA and Josnrrr FOLK, citizens of the United States, residing at Laporte, in the county of Laporte and State of Indiana, have invented certain new and useful Improvements in Binding-Knives for Slicing-Machines, of which the following is a specification.

This invention has for its object the provision of a device of the character named which shall be of improved construction and operation.

The invention is exemplified in the combination and arrangement of parts shown in the accompanying drawings and described in the following specification, and it is more particularly pointed out in the appended claims.

In the drawings- Figure 1 is aside elevation of a rinding knife embodying one form of the present invention and shown in position on a slicing machine.

Fig. 2 is a top plan view of the knife shown in Fig. 1.

Fig. 3 is a horizontal sectional view on line 33 of Fig. 1.

Fig. 4 is a fragmentary sectional view showing details of construction.

Fig. 5 is an elevation looking at the rinding knife and support from the right in Fig. 1.

Fig. 6 is a vertical section on line 6-6 of Fig. 2; and

Fig. 7 is a vertical section on line 7-7 of Fig. 3.

The present invention is intended to be applied to slicing machines of well-known construction for the purpose of removing the rind from meat as it is being sliced by such a machine, and is especially useful in the slicing of bacon. In Figs. 1 and 2 of the drawings, the numeral 10 designates the frame or base of a slicing machine which is provided with the usual rotary slicing knife and reciprocating table 11 which travels on guide rods or ways 12, and is reciprocated by a pitman 13 pivotally con nected to the table 11 by a pin 14. A bracket 15 is rigidly secured to the base 10 by lag screws 16 and carries a split collar 17 at its upper end which may be clamped by a screw 18 about a pin 19. The pin 19 is threaded at 20, and a knurled thumb Specification of Letters Patent.

Patented July 8, 1919.

Serial No. 237,438.

nut 21 is arranged to move up and down upon these threads. A collar 22 slides upon the upper portion of the pin 19 and is provided with downwardly projecting fingers 23 which engage the nut 21 so that the collar 22 is vertically adjusted upon the pin 19 by the rotation of the knurled thumb nut. The collar 22 may be rotated about the pin as an axis, and is held in different angular positions by a pin 24 which is arranged to engage either one of two slots 25 and 26 cut in the pin 19. The pin 24 is held in position by a plug 27 threaded into a radial opening in the collar 22, as shown best in Fig. 4, and a spring 28 normally presses the pin 24 inwardly to cause it to engage the slots 25 and 26. The outer end of the pin 24 is provided with a finger piece 29 by means of which the pin may be drawn outwardly to disengage it from the slots 25 and 26, and by which the collar 22 may be rotated about its aXis into either of the two positions indicated in Fig. 2.

The upper end of the pin 19 is provided with a reduced portion 30 over which a plate 31 is fitted. The plate 31 is preferably covered by a thin sheet 32 of noncorrosive metal which is not affected by contact with meat, or other substance sliced by the machine. The inner edge of the plate 31, as shown in Fig. 1, is located as closely as possible to the outer edge of the meatsupporting table 11 so that the portion of the meat which is to form the slice eX- tends beyond the edge of the table 11 and overlaps the inner edge of the plate 31. It will be seen from Fig. 5 that a portion of the plate 31 and of the cover sheet 32 is inclined upwardly, as shown at 33, in the direction of travel of the table during a slicing operation. The object of this inclined surface is to raise the projecting portion of the meat to a level with the upper surface of the reciprocating table at the point where the rinding knife operates in case there is a tendency for this projecting portion to droop downwardly.

The rinding knife proper is shown at 34 in the drawings and is clamped between two bars 35 and 36, the whole being riveted together, as shown in Fig. 7, to form substantially one piece. The rivet 37 for one end of the rinding knife is provided with a downwardly extending pin 38 which travels in angularly positioned groove 39 formed 7 in the plate 31 and cover sheet 32. The rivet for the opposite end of the rinding knife consists of a sleeve 40 which extends through an arcuate slot 41 in the plate 31 and cover sheet 32, and is connected to the upper surface of the collar 22 by a screw 42 which eX- tends through the opening in the center of the sleeve 40, and is threaded into the upper surface of the collar 22 near the periphery thereof, as shown in Fig. 6. This arrangement makes it possible to project the edge of the rinding knife 34 into the path of movement of the meat to be sliced by the rotation of the collar 22 into the position shown in Figs. 1, 2 and 3. When it is desired to Withdraw the rinding knife 34 from operative position, it is only necessary t rotate the finger piece 29 to the position shown in broken lines in Fig. 2. This will move the pin 42 from the position shown in the figure to the opposite end ofthe arcuate slot in the plate 31, and the edge of the knife 34 will be correspondingly moved away from the edge of the meat table 11. The same rotary movement of the sleeve 22 will move the pin 38 in the slot 39, and thus because of the inclination of this slot force the other end of the knife 34 into inoperative position. It will thus be apparent that all that is neces sary to move the knife 34 into and out of operative position is to pull outwardly on the finger piece 29 to disengage the pin 24 from the slot 25 or 26, and then while still holding the finger piece to move it about the center of the pin 19 to bring the knife 34 into the desired position. Upon releasing the finger piece 29, the spring 28 will cause the pin 24 to enter one of the slots 25 or 26 and thus lock the knife 34 in the position to which it has been moved. In order to prevent foreign material from entering the slot 41 in the plate 31, a disk 45 is pivoted on a shoulder 46 formed on a screw 47 which is threaded in the upper end of the reduced portion 30 of the pin 19, and which holds the plate 31 in place. The disk 45 is provided with a circular opening through which the sleeve 40 extends, and in which the sleeve snugly fits.

\Vhen it is desired to adjust the vertical position of the knife 34 to accommodate it to various thicknesses of rind to be removed, or for any other purpose, it is only necessary to turn the knurled nut 21, and this rotation of the nut will move the collar 22 upwardly or downwardly, and the sleeve 40 and knife 34 will be correspondingly adjusted. If it is desired for any reason to shift the vertical position of the plate 31 this may be done by loosening the split collar 17 and sliding the pin 19 vertically throughthe collar. The plate 31 is provided at one end with an opening 48 through'which a guard rod, not shown, extends and holds the plate 31 from rotation on the pin 19.

c claim e 1. In con'ibination, a rotary member, a rinding knife eccentrically pivoted on said member, a second pivotal support for said rinding knife, and a threaded member for vertically adjusting said rotary member and for holding said member in its various positions of vertical adjustment.

2. In combination, an upright spindle, a collar mounted to slide longitudinally along said spindle and to rotate thereabout, a rinding knife cccentrically pivoted on said collar, and a nut threaded on said spindle for adjusting said collar along said spindle and for holding said collar in its various positions of adjustment.

3. In combination, an upright spindle, a collar slidably mounted upon said spindle and arranged to rotate thereabout, a rinding knife eccentrically pivoted to said collar, a catch for holding said collar from rotation upon said spindle, and a threaded member for adjusting said collar along said spindle.

4. The combination with a slicing machine, of a rinding knife therefor, and mechanism for moving said knife into and out of operative position, said mechanism comprising a single member which constitutes a. catch for holding said rinding knife'in position and also a. handle for moving said rinding knife into and out of operative po sition.

5. In combination, a rinding knife for slicing machines, a device for shifting said knife into various positions of adjustment, a spring-pressed catch for holding said knife in its different positions of adjustment, and a handle connected with said catch for operating said catch and for shifting said knife from one position of adjustment to another.

6. In combination, a rinding knife for slicing machines, a support for said knife, means for shifting said support about an upright axis to move said knife into and outof operative position, means for adjusting said support vertically and for holding said support against vertical movement during the adjustment of said knife into and out of operative position, and a catch for holding said knife in its operative and inoperative positions.

7. The combination with a slicing machine, of a bracket carried thereby, an up right spindle vertically adjustable in said bracket, means carried by said spindle for supporting the edge of material to be sliced during a slicing operation, and a rinding knife mounted on said spindle and adjust able thereon relative to said supporting means.

8. The combination with a slicing ma chine, of a bracket secured thereto, an uprightspindle carried by said bracket, a plate mounted on said spindleand having one edge thereof arranged to project beneath the edge of material to be sliced, a collar mounted on said spindle, a rinding knife eccentrically pivoted on said collar, means for shifting said collar about said spindle as an axis to move said rinding knife into and out of operative position, and a. threaded member for adjusting said rinding knife relative to said spindle and supporting plate and for holding said rinding knife in its various positions of vertical adjustment.

9. In combination, a table for supporting material to be sliced, a rinding knife positioned adjacent the edge of said table, and an inclined support for guiding material into operative position relating to said rinding knife.

10. In combination, a rinding knife, a table for supporting material to be sliced movable relative to said rinding knife, and an inclined support for guiding the portion of the material projecting beyond said table into position to be operated upon by said rinding knife.

In testimony whereof We have signed our names to this specification on this 25th day of May, A. D. 1918.

AUGUST R. LUSCHKA. JOSEPH FOLK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Images