US1607879A - Slicing-machine knife - Google Patents

Description

Nav. 23, 1926.

1,607,879 w. .1. DRUCKER SLICING MACHINE KNIFE Filed August l5, 1924 d SB INVENTOR 1,607,879 PATENT OFFICE.

WILLIAM J. DRUCKER, F WOODHAVEN, NEW YORK.

SLICING-MACHINE KNIFE.

Application filed August 15, 1924. Serial No. 732,17.

rl`his invention relates to slicing machines and has particular reference to machines of that general type that are equipped with rotary knives.

Among the objects of this invention is to provide lfor a slicing machine a thin rotatable blade removably attachable to a support so as to provide for economy of construction and ease of sharpening.

u) Still another object of this invention is to provide a knife having various adjustable features.

Vith the foregoing and other objects in view the invention consists in the combina- !5 tion and arrangement of parts hereinafter described and claimed, and while the invention is not restricted to the exact details ofy construction disclosed or suggested herein, still for the purpose vof illustrating a praczo tical embodiment thereof reference is had to the accompanying drawings in which like reference characters designate the same parts in the several views, and in whicl1- Fig. 1 is an elevation of my blade.

Fig. 2 is a section showing a method of mounting the blade.

Fig. 3 is a section showing a modified form Iof knife construction.

Fig. 4 shows still another type of blade and a modified method of mounting the same.

Referring now more specifically to 'the drawings I show my. improved blade at 36 of annular form. This blade is provided with angularly spaced holes 37 located remote from the outer periphery or cutting edge of the blade, and'radial slots 38 spaced relatively to each other and located between the holes aforesaid 'and terminating in spaced relation to the cutting edge, whereby 40 the portions of the blade' between said slots constitute in eHect a plurality of flexible locking tongues adapted to be secured to a support by means of screws passing through the holes 37, whereby the blade is dished or concaved.

The blades are suitable for mounting in the structure shown in Figs. 2 and 3. Referring more specifically to the modification shown in Fig. 2, screws 39 secure the annular blade to a supporting member 27a within a concave seat 29 thereof. Thus'this member 27a is provided with a series of holes to receive lugs 40 or the like of an abutment formed on the arbor 20, to which it is sef" cured by means of a screw 41. A cover plate 42 is used particularly in connection vas well as for a simpler heat treatment for with the slotted annular knife 36 to prevent the same from collecting grease and the like, said plate being secured to the knife structure by means 0f a screw 43 threaded into the head of the screw 41. In the modification shown in Fig. 3 the knife securing means include a supporting member 27bvcentered upon an arbor 20" by means of a lug or point 44, said platebeing secured to the arbor in any suitable manner as by screwsl 45. lVhile the main body portion of said supporting member is of fiat disk construction, an annular recessed seat 29h is provided at the periphery of said member of concave form so that the annular blade 34 received thereby will be concaved or dished in a. suitable manner by means of the screws 39 coincident with securing it in place. To prevent any possibility of sliced material clinging or catching to the back of the knife a frusto conical shell or hood 46 is provided at the side of the knife remote from the material to be sliced. This shell is held in close proximity to the knife and stationary relatively thereto by means of a sleeve 47 surrounding the arbor 20", to which sleeve said shell is attached in any suitable manner. An annular lip 48 or the like is formed upon the member 27b in spaced relation to said shell .and overlapping or covering the edge thereof to insure eiective deflection of the sliced material. Fig. 4 embodies the seat structure disclosed in Fig. 3 with a circular disk or plate 42a which is secured to the supporting member 27c in anysuitable manner as by screws 49, said disk being beveled as at 50 along the periphery and at the face thereof adjacent` to an annular blade 51 so as to be substantially parallel to the seat 29b and to be adapted effectively to flex and concave the blade. It will be noted that the blade 51 need not -be perforated, since the screws 49 do not pass therethrough but are located in spaced relation to the same.

With any of the exposed parts of the knife constructed of sanitary material,such as stainless steel, I am able to produce a knife of the most attractive nature and yet at low cost because of the cheap initial and upkeep expense. l

The blade being of thin flat metal is adapted for'cheap and rapid construction hardening and tempering. The concave or dished form of the blade permits of the fastening screws orlother attaching devicesl blade, whereby the material sliced is adapted to move across the face of the knife without being caught `or obstructed by any part of the knife.

I claim l. In a slicing machine knife7 a supporting member having a concave periphery constituting a seat to support an annular blade, a facing member on the opposite side of the blade from the supporting member and bearing against the blade in proximity to its cuttingedge, and means acting upon the 15 facing member to draw it toward the sup porting member to cause the blade to gripped between the facing member and f said seat portion of the supporting member. y2. A device as set forth in claim 1 in which the facing member is a disk substantially coextensive with the supporting member and lying within the cavity back of the plane of the vcutting edge of the knife.

In testimony whereof I affix my signature.

WILLIAM J. DRUCKER.

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