US164762A - Improvement in saw jointers and gages - Google Patents

Description

- n. E. 'PDIND'EXTERY Saw-lointer and Gage.

N0. 164M762 PatentedJune22-,I875.

WITNESSES. Q INVENTDFi THE GRAPHIC CO.PHOTD-LITH.39&41 PARK PLAGEJLY.

UNITED STATES PATENT FFTGEE.

ROBERT E. POINDEXTER, OF ANDERSON, INDIANA.

IMPROVEMENT IN SAW JOINTERS AND GAGES.

Specification forming part of Letters Patent No. 164,762, dated J une 2'2, 1875; application filed December 11, 1874.

To all whom it may concern Be it known that I, ROBERT E. POINDEX- TER, of Anderson, in the county of Madison and State of Indiana, have invented certain new and useful improvements in Saw J ointers and Gages; and I do hereby declare the fol lowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in saw jointers and gages, and is intended as an improvement upon my Patent No. 150,431, dated May 5, 1874.; and consists in casting the frame in a single piece of metal, forming flanges upon each side, and providing it with an adjustable gage-plate, set-screw, and a clamping device for the file, all of which will be more fully described hereafter.

The accompanying drawing represents my invention.

a represents an iron plate of suitable length and width, having upon its surfaces, 011 each side, two flanges, b and I), of equal height. extending lengthwise of the plate. At right angles to the surface 9 of the plate a, and secured to a projection, r, at its edge, isa laterally-adjustable gage-plate, c. This plate is made adjustable, so that when the gage is placed against the side of the saw the plate can be moved so as to face up against it, in order to prevent the tooth from springing while being filed. It may also be used to regulate the set of the teeth, instead of the setscrew. Parallel with the flanges b, and firmly held by the clasp d, is the file c, which is braced against two projections, f, on the side of the plate and on the surface g. On the,

edge of the surfaceg of the plate a are projections 19, arranged in such a manner that, when the flanges 1) upon the surface 9 rest against the side of the saw-blade, these projections rest upon/the cutting-teeth,,leaving the chisel-teeth exposed at the adjustable gage-plate 0. Between the projections 12 in the opening 0 penetrates the end of the screw S, which, being adjustablaserves as a gage for the set of any kind of a saw.

When used for regulating the length of the teeth the surface 9 of the plate a is applied to the side of the saw-blade, and the gage moved back and forward, the file being in contact with the points of the teeth. The flanges b upon the surface 9 of the plate a guide the gage, and keep the set of the teeth from being touched or injured by the plate. Having filed the teeth of equal length, the gage is turned over for the purpose of shortening the chiselteeth, and the side g of the plate a is brought to bear against the side of the saw-blade. The chisel-teeth, being left exposed when the cutting-teeth are placed under the projections 19, may now be filed down to a level with the gage-plate c. Having adjusted the length of both the cutting and chisel teeth, and the proper set being ascertained by the gagescrew s, the sharpening of the saw may he proceeded with in the usual manner.

The improvement in my present invention upon my former patent consists in dispensing with the wooden block and introducing a more substantial holding device-for the file; also, in adding a setgage. The arms are also removed, and flanges, which guide the gage, substituted, and the instrument, by these alterations, made more durable and cheaper.

Having thus described my invention, I claim-- 1. A saw joiuter and gage provided with a laterally-adjustable plate, 0, whereby the tooth is prevented from springing while being filed, substantially as set forth.

2. .The metal frame at, having the flanged surfaces g and g projections f, clamp d, ad j ustable plate c, and set-gage s, substantially as specified.

Ln testimony that I claim the foregoing I have hereunto set my hand this 4th day of December, 1874.

ROBERTE. POINDEXTER.

Witnesses:

GEORGE W. KLINE, A. O. DAVIS.

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