US378017A

US378017A - William h

Info

Publication number: US378017A
Authority: US
Publication date: 1888-02-14
Anticipated expiration: 1905-02-14

Description

(No Model.)

Y W. H. NELSON.

SAW SET. No. 878,017. 12886118881168181888.

- UNITED STATES PATENT OFFICE.

WILLIAM H. NELSON, OF WASHINGTON, DISTRICT OF COLUMBIA.

SAW-SET.

SPECIFICATION forming part of llllettersv Patent No. 378,017, dated February 14, 1888.

Application filed December 22, 1886. Serial No. 222,255. (No model.)

To aZwzom, it may concern:

Be it known that l, WILLIAM H. NELSON, of Washington, in the District of Columbia, haveinvented new and useful Improvements in Saw-Sets; and I do hereby declare that the following is a full and exact description otthe.-

same, reference being had to the accompanying drawings, and to the letters and figures. of reference marked thereon.

This invention is a saw-.set having certain specific peculiarities of construction, fully described hereinafter, by means of which a few simple parts are combined in such manner as to form an effective tool.

In the drawings, Figure 1 represents a side view of the saw-set complete; Fig. 2, a side view of the body portion detached; Fig. 3, a side view ot the 'saw-set portion detached, and Fig. 4a perspective viewof the gage-plate.

To enable others skilled in the art to make and use my improved saw-set, I will proceed to describe fully the. construction of the same and the manner of its operation.

1 represents the body portion of the tool, having the circular pivot portion 2, the handle portion 3, extending from the pivot portion in one direction, and the supporting-arms 4 5, extending from the circular pivot portion 2 in the opposite direction. The lower support- 4ing-arm, it will be observed, is provided with an inclined bearing-surface, a, as shown in Fig. 1 of the drawings.

6 represents an adjusting-screw, by means of which the saw-blade is properly held in the receiving-slot between the supporting-

arms

4 and 5. e

7 represents the saw-set portion, having the circular pivot portion 8 at one end, with the setting-tongue 9 projecting therefrom, which is provided with a bearing-surface, b, corresponding with the bearing-surface a of the -lower arm, 10, and the handle portion extending from the opposite side ofthe circular portion, as shown.

11 represents a spring attached to the haudle portion of the saw-set portion, as shown.

12 represents a gage-plate having a slot, 13, and the bearing-fingers 1.4, as shown.

15 represents au adjustingscrewheld in the lower arm of the body portion, as shown.

The operation is substantially as` follows: The gage-plate having been properly adjusted according to the lengt-h of the tooth that it is desired to set, the sawis inserted betweenthc arms4 5 of the body portion until its teeth strike -the bearing-fingers 14.A The screw 6 is adjusted to give the proper support to the sawblade without interfering with its capacity for longitudinal movement. The saw-set portion is 'then actuated to cause the tongue 9 to force the tooth of the saw down upon the inclined bearingsurface a, to act upon the tooth of the saw and set the same, iu the manner well understood.

It will be observed that the supporting-arms of the body portion resemble inform a ducks bill.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-A Y The saw-set described, consisting of the body portionl, having the supporting-

arms

4 and 5, the lower supporting-arm having the inclined bearing-surface a, the saw-set portion 7, having the ltongue 9, provided with the bearing-surface b, and the gage-plate having the slot 18,bearing-ingers 14, and set-screw 15, as

set forth.

This specification signed and witnessed this 13th day of December, 1886.

WM. H. NELSON.

Witnesses:

J ULIAN W. HoLT, CHARLES BENDHEIM.