US822860A - Cutter-guard for shoe machinery. - Google Patents

Description

[UNITED STATES PATENT OFFICE.

LIONEL B. LEGGE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND HEYWOOD BOOT & SHOE COMPANY, OF VVOROES- TER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

Specification of Letters Patent.

i'atentecl June 5, 1906.

Application filed Earth 24, 1905. Serial No. 251,786.

To (all whom it may concern:

Beit known that I, LIONELB. LEGGE, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Cutter-Guard for Shoe Machinery, of which the following is a specification.

This invention relates to that class of trimming-machines which are used for skiving or thinning the edges of pieces of leather or other stock.

The especial object of this invention is to provide a guard inclosing and protecting the isk-shapcd cutter of a machine of the class referred to.

A further object of this invention is to pro-- vide a guard which can be ened, so that the cutter can be round and s arpened.

To these ends t 's invention consists of the cutterand and of the combinations of parts therewith, as hereinafter described, and more particularly pointed out in the claims at the end of this specification.

In the accompanying drawin s, Figure 1 is a side view of suflicient parts 0 a trimmin machine to illustrate the application of this invention thereto. Fi 2 is an enlarged view of the cutter-disk, t e guard being shown in section. Fig. 3 is a plan view of the same. Fig. 4 is a detail view of the movable iece of the guard, and Fig. 5 is a detail view illustrating a sample of the ciass of work which may be done on machines of the class to which this invention relates.

The trimmin -machincs which are now extensively emp oyed in cutting pieces for making boots and shoes ordinarily comprise cutting-disks which are combined with workguiding disks and wheels which will present the work in proper position so that the ed as will be cut or trimmed b the cutting-dis In using machines of this hind naked cuttingdisks have heretofore been employed, and it frequently happens that the operators cut tihelpiselves seriously upon the sharp cutting- The especial object of this invention is to provide a guard for a cutter-disk of the kind referred to which will inclose and protect the same, so as to guard against injury to the operator, while at the same time it will not interfere with the work.

A further object of this invention is to provide a guard which can be opened to permit the grinding or sharpening of the cutter-disk. This object is accomplished by making the guard in two pieces, one part of the guard being fixed and the other part being movable, so that it can be opened to allow access to the back side of the cutter.

Referring to the accompanying drawings and in detail, as shown in Fig. 1, F designates an arm or part of the frame of a trimmingrnachine. V The frame F is rovided with clam s and 11. Adjustal iy fastened in the c amps 10 and 11 is the bushing 12. The bushinglZ is provided with a collar 13, which is mounted in a frame which can be moved up or down by a rod having a cap or knob 14. Journaled in the bushing 12 is the cutter shaft 15, and fastened on the lower end of the cutter-shaft 15is the cutting-disk 16. The upper end of the cutter-shaft 15 is supported by a bearing 17, carried b an ad'usta e arm, and the cutter-shaft is riven y the usual belt B. 006 crating with the cutting-disk 16 is a feed-disk 18, carried by a'shaft 19, which is normall forced down by a spring. At its upper en the shaft 19 is provided with a worm-wheel 20, meshing with the worm 21 on the shaft 22. The feed-disk 18 normally rests upon and cooperates with the feed-wheel 23, mounted on a shaft 24. In the use of the machine as thus constructed the stock is fed to the cutting-disk 16 between the feed-disk 18 and the wheel 23. The guard which I have provided for inclosing the cutting-disk 16 is designated by the numoral 25 and is of substantially conical or trumpet sha c. This guard is fastened on the lower on of the bushing 12 and is provided with a notch or recess 26 to aliow sufi'icient ciearance so that the stock can be fed to the cutting-disk without interference. Mounted on the shaft of the trumpet-guard 25 is a rin 27, which is held in place by a retaining-co lar 28, fastened by screws 29. Carried by the collar 27 is a cover-piece 30, which is secured thereto by screws 31.

It will be seen that the complete guard consists, essentially, of two arts or pieces, the movable section of which can be opened or swung to permit access to the cutter for sharpening.

Trimminglmachines as thus equipped may be used wit greater safety than is now the juriy.

am aware that changes may be made 1n applying my guard to different styles of trim- I do not wish, therefore, to

mmg-machmes. be limited to the construction I have herein shown and described; but

What I do claim, and desire to secure by Letters Patent of the United States, is-

1. In a machine of the class described, the combination of a rotary cuttingdisk, a guard therefor having a circular flange covering the edge of said disk, said flange having two notches ex osing the edge of the disk, and a removab e cover-piece located above and normally covering one of said notches.

2. In a machine of the class described the combination of a rotary cutting-disk, a shaft on which said disk is mounted, a bell-shaped guard for said cutter, the guard being pro vided with two notches for exposing the edge of the cutter, a retaining-collar fastened to a neck projecting from said guard, a collar mounted on the neck of said guard and rotatable thereon, and a cover-piece for, one of 'to the bushing, an

the notches of said uard mounted on the last-named collar an rotatable therewith.

3. In a machine of the class described, the combination of a cutting-disk, a twoart bell-shaped guard inclosing the cuttingisk, one part of said guard havin a notch in its periphery to permit work to be presented to the cuttlng-dlsk, and the other part of the guard being movable, whereby the guard can be opened to permit the disk to be sharpened.

4. In a machine of the class described, the combination of the frame, a bushing adjustably clamped in the frame, a cutter-shaft journaled 1n the bushing, a cutting-disk on the cutter-shaft, guiding devices for present ing work to the cutting-disk, comprising a feed-disk and wheel, and a two-part bellshaped guard inclosing the cutting-disk, one part of said bell-sha ed guard bein fastened having a notci permittin work to be presented to the cutting-disk, an the other part of said guard being rotatably mounted to permit the guard being 0 ened so that the cutting-disk may be s arpened.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

LIONEL B. LEGGE.

Witnesses:

PHILIP W. SOUTHGATE, MARY E. REGAN.

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