US279251A

US279251A - Saw-swage

Info

Publication number: US279251A
Authority: US
Publication date: 1883-06-12
Anticipated expiration: 1900-06-12

Description

W. KELLY.

(No Model.)

SAW SWAGE.

No. 279,251. Patented June 12,1883.

' UNITED STATES- WILLIAM KELLY, OF

PATENT OFF CE.

SARANAG, MICHIGAN, ASSIGNOR T JAMES L. rrrrs, OF GRAND RAPIDS, MICHIGAN.

SAW-SWAGE.

SPECIFICATION forming part of Letters Patent No. 279,251, dated June 12, 1883. Application filed August as, 1882. (N0 model.) I

To all whom it may concern Be it known that I, WILLIAM KELLY, of the village of Saranac, in the county of Ionia and State of Michigan, have invented certain new and useful Improvements in Saw-Swages; and

I do hereby declare that the following is a full,

- clear, and exact description thereof, reference being had to the accompanying drawings, and

to the letters of reference marked thereon,

which form part of this specification, in

which Figure l is a perspective view of my improved saw-swage. Fig. 2 is a vertical section of the flanged swage. Fig. 3 is a perspective view of the tooth-holder, and Fig. 4 is a ver-' tical longitudinal section.

The object of this invention is to swage circular or other saw teeth, so that the cutting or chisel edges of the teeth are spread laterally for the purpose of making a kerf which is broader than the thickness of the saw-blade, thereby preventing the saw from buckling while operating on the log.

The nature of my invention consists in an in- 2 5 strument which is formed somewhat like the italic letter f, and which is provided with an anvil on one end, a handle on the opposite extremity, and intermediate mortise, and devices applied in said mortise which are especially 0 adapted for holding the point of a saw-tooth while it is struck and spread, as will be hereinafter fully explained, and set forth in the an neXed drawings.

The letter A designates a lever, which is 5 formed somewhat like the italic letter f, and

cheeks, c o, terminating at their rear edges in shoulders, (Z (Z, which are sufliciently beveled to give a chisel-edge to the ends of the saw-teeth when the lever A is struck by a hammer or 5 mallet. The die E is wedged into the mortise a, and is constructed with a tapered shank and a lower end, which is beveled like a chisel, as indicated at 6.

Now, it will be seen that the instrument is adapted to be applied to a saw-tooth, as indicated in Fig. 4, upon the point of a tooth, and when so applied the lever is then struck at B, which not only spreads the tooth laterally, but condenses the cutting portion and forms a welldefined chisel-edge.

It is obvious that the angleof the swagingtool E may be changed according to the bevel of the teeth, and that the angle of the shoulders d d may be varied according to the pitch which it is desired to give the chisel-points of the teeth.

Having described my invention, I claim- 1. The combination of the curved lever having'an anvil, B, and a tapered mortise through it, of the dies E E, constructed and adapted to operate substantially in the manner and for the purposes described.

2. The combination of the flanged and beveled die E, the chisel-edge die E, and the lever of curved form, provided with an anvil on one end and a handle on the other end, all constructed and arranged substantially in the manner and for the purposes described.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses.

WILLIAM KELL Y.

Witnesses:

JEROME BROWN,

E. H. SHEW.