US248463A

US248463A - Saw-set

Info

Publication number: US248463A
Authority: US
Publication date: 1881-10-18
Anticipated expiration: 1898-10-18

Description

(No Model.)

N. S. HARVEY.

SAW SET.

No. 248,463. Patented Oct. 18,1881.

fm2/mn".-

ywTTn STaTes PATENT Tate@ NOAH S. HARVEY, OF DETROIT, MICHIGAN.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 248,463, dated October 18, 1881,

Application filed J une 2l, 1881.

To all whom it may concern:

Be it known that I, NOAH S. HARVEY, a citizen ot' the United States, residing` at Detroit, iu the county of Vayne and State of Michigan, have invented certain uew and useful Improvements in a SawSet; and Ido hereby declare the followiugto be afull, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertaius to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked th ereon, which form a part ot' this specitication.

My invention relates to an improvement in saw-sets; and it consists in the peculiar con-v struction and arrangement of devices, to be more fully described hereinafter, whereby a cheap, simple, and effective machine is produced, capable of setting the teeth of a saw of any size at any desired angle.

The accompanying drawings fully illustrate my invention.

Figure l is a vertical longitudinal sectional view ot' my invention on the line x x, Fig. 2. Fig. 2 is a horizontal longitudinal sectional view on the line x x, Fig. l. Fig. 3 is a front elevation, partly in section, through thelineyy, Fig. l.

A represents a bed-plate, which is made in the shape shown in Fig. l, its rear end being secured to the block b, and its front end being sloped or curved so as to be much lower at that point than iu the center. of this cutaway portion is secured the sawrest c, which determines the angles to which the teeth are to be set, it being provided with the elevating-screw d, which passes through the front end ofthe hed-plate A, whereby the saw-rest may be placed at any height desired. On its upper side, at the rear end of the plate A, is the bearing a', and at a suitable distance from the bearing a is a second bearing, c. Through these beariu gs passes the rod 7L, having a screw-thread at its rear end, and pro.-

vided with a thumb-nut, t.

VUpon the forward end of the rod h is the adjustable gage g. It is provided with forwardextending lugs l, having between them a recess which receives the anvil c, and through Near the trout end (No model.)

which the dien passes in its descent. The under side of the gage is slotted to admit the anvil e when small teeth are to be set, and the gage is adjusted wellforward around the anvil.

Placed around the rod is the spring k. Its rear end bears against the bearing c', and its forward end against the pin 7c', which passes through the rod hand operates to make the gageg adjustable. It will readily be seen that the gage-head can be moved backward or forward by turning the nut z'.

In the highest portion of the bed-plate A, near its center, is secured the anvil c, which is provided with the flanges f, which fit into a corresponding groove made in the bed-plate. The anvil c is made wedgeshaped, its upper and lower surfaces converging to a point at the rear end, as shown in Fig. 1. The upper side serves to receive the stroke of the die or hammer, and by having its lower surface sloping and litting into a corresponding groove made in the bed-plate the anvil can be driven in position so as to remain tirmlyin place, and at the same time be readily removed, when necessary, to replace it by another.

From the center of the upper surface of the bed-plate rises the standard B, the lower portion of which is open lat B and straddles thel working devices described, its upper portion being provided with two long slots, and the sides of the standard being connected by the braces o o.

In the upper end of the standard is pivoted the arm or lever C, which is provided with the cam m, which lits into a slot .made in the upper end of the piston a. This piston is normally pressed upward by the spring p, and terminates at its lower end in a die or former, u', of any suitable shape to fit the saw-teeth.

The operation of my invention is as follows: The gageg is adjusted at a suitable point from the outer edge of the anvil c to correspond to the depth of the teeth of the saw to be operated upon, and the saw-rest c is fixed at a suitable height, so that the saw will be inclined at the proper angle to the upper side of the anvil c, as shown in dotted lines in Fig. l, after which the operation of setting the teeth of the saw is proceeded with in the ordinary way.

By having the gage and saw-rest adjustable 2. In a saw-set, an adjustable gage, g, havthe machine can be adapted to saws of any inglugsl,einbracingthe anvile,and provided depth and angle of teeth. with a recess on its under side adapted to re- ]Elaving thus described my invention, I ceive the anvil e, as and for the purposes set 15 claimforth.

1. The combination, with the base A, hav- NOAH S' HARVEY.

ing bearings a a', and the gage g, provided with the rod h, having,r pin k', ofthe spring 7c, Witnesses:

placed on the rod h and adapted to bear be- SAMUEL T. MARSH, tween the bearings a. and pin k', substantially DANIEL E. MARSH. i

as shown.