Untitled record

Application filed June 21,1881. (No model.)

To all whom it may concern:

Be it known that I, Noah S. Harvey, a citizen of the United States, residing at Detroit, in the county of Wayne and State of 5 Michigan, have invented certain new and useful Improvements in a Saw-Set; and Ido hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apio pertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to an improvement in 15 saw-sets; and it consists in the peculiar construction and arrangement of devices, to be more fully described hereinafter, whereby a cheap, simple, and effective machine is produced, capable of setting tbe teeth of a saw of 20 any size at any desired angle.

The accompanying drawings fully illustrate my invention.

Figure 1 is a vertical longitudinal sectional view of my invention on the line x x, Fig. 2. 25 Fig. 2 is a horizontal longitudinal sectional view on the line x x, Fig. 1. Fig. 3 is a front elevation, partly in section, through tbelineyy, Fig. 1.

A represents a bed-plate, which is made iu 30 the shape shown in Fig. 1, its rear end being secured to the block b, and its front end beingsloped or curved so as to be much lower at that point than in the center. Near the front end of this cut-away portion is secured the saw35 rest 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 of the bed-plate A, whereby the saw-rest may be placed at any height desired. 40 On its upper side, at the rear end of the plate A, is the bearing a', and at a suitable distance from the bearing a¹ is a second bearing, a. Through these bearings passes the rod h, having a screw-thread at its rear end, and pro45 vided with a thumb-nut, i.

Upon the forward end of the rod 7» is the adjustable gage g. It is provided with forwardextending lugs 7, having between them a recess which receives the auvil e, and through which tbe die n passes in its descent. The un- 50 der 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 tbe spring k. Its rear end bears against the bearing a', and its 55 forward end against the pin Id, which passes through the rod h and 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 i. 60

In the highest portion of the bed-plate A, near its center, is secured the anvil e, which is provided with the flanges f, which fit into a corresponding groove made in the bed-plate. The anvil e is made wedge-shaped, its upper 65 and lower surfaces converging to a point at tbe 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 fitting into a corresponding groove 70 made in the bed-plate tbe anvil can be driven in position so as to remain firmly in 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 75 bed-plate rises the standard B, the lower portion of which is open at B' and straddles the working devices described, its upper portion being provided with two long slots, and the sides of the standard being connected by the 80 braces 0 o'.

In the upper end of the standard is pivoted the arm or lever C, which is provided with the cam m, which fits into a slot made in the upper end of the piston n. This piston is normally 85 pressed upward by the spring p, and terminates at its lower end in a die or former, n', of any suitable shape to fit the saw-teeth.

The operation of my invention is as follows: The gage g is adjusted ata suitable point from 90 the outer edge of the anvil e 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 an- 95 vil e, as shown in dotted lines in Fig. 1, after which the operation of setting the teeth of the saw is proceeded with in the ordinary way.

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By having the gage and saw-rest adjustable the machine can be adapted to saws of any depth and angle of teeth.