GB419988A - Improvements in or relating to meat chopping or mincing machines - Google Patents

Abstract

419,988. Mincing-machines. WARD, Ltd., T. W., and ELLIOTT, F., Savile Street, Sheffield. Dec. 7, 1933, No. 34375. [Class 28 (ii).] In a meat chopping or mincing machine, the knives are spaced and carried by washers or carriers which are keyed or connected together in such manner that when the knives are disassembled and re-assembled on the knife shaft, the angular relationship of the knives cannot be disturbed. As shown, the knife shaft 7 has a collar 8 into which two screws 9, 10 are threaded, the heads of the screws projecting from the collar 8 to engage holes 29, 30 in the washer or carrier 16. The knife 13 is screwed to the face of the carrier 16 by screws, similar to the screws 9, 10, the heads of which engage holes in the carrier 15 which in turn has the blade 12 secured to it, and so on. The final screws 17, 18 are accommodated in recesses or apertures in a ring 43 which is clamped by a nut 46 to secure the whole assembly of knives 11-13 and carriers 14-16. The shanks of the knives, as shown in Fig. V, embrace the shaft 7 and are slotted at 31, 32 to permit radial adjustments of the knives to compensate for recession of the edge due to wear. To prevent the carriers and knives from being assembled with incorrect relative angular positions, the screws 9, 10 &c. and the corresponding holes 29, 30 &c. may be arranged otherwise than on a diameter, or one set of screw heads and the corresponding holes may be made of different size to the other set of heads and holes. As shown, however, the correct angular relationship is assured by arranging one set of screw heads and the corresponding holes at a different radial distance from the axis than the other set of heads and holes. The carriers 14-16 are spigoted and socketed to engage with one another.