US336933A

US336933A - Combined saw setting and gumming tool

Info

Publication number: US336933A
Authority: US
Publication date: 1886-03-02
Anticipated expiration: 1903-03-02

Description

(No Model.)

1). MQDAONOUGH.

I V COMBINED SAW SETTING AND GUMMING TOOL. No. 336,933. Patented Mar. 2, 1886.

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UNITED STATES DANIEL MCDONOUGH, OF EAGLE RIVER, WISCONSIN.

COMBINED SAW SETTI NG AND GUMMING TOOL.

SPECIFICATION forming part of Letters Patent No. 336,933, dated March 2, 1886.

Application filed August 24, 1885. Serial No. 175,193. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL McDoNoUGH, of Eagle River, in the county of Lincoln and State of \Visconsin, have invented a new and useful Combined Saw Setting and Gumming Tool; and I do hereby declare the following to be a full, clear, and exact description of said invention, reference being had to the accompanying drawings, and to the letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 isaside view of my combined tool. Fig. 2 is a view of the tool as seen from above when in the position shown in Fig. 1. Fig. 3 is a cross-section of the tool on line xwof Fig. 2. Fig. 4 is the saw-tooth gage removedfrom the tool.

The same letters refer to like parts in all the views.

In the drawings, A is a solid bar, and is the main or,principal piece of the tool, to which all the other parts are attached or on which they are supported. To one edge of this bar, near one end but ata distance from each other, are

two stirrups, B B, rigid to the bar A and extending beyond its edge. A bar, 0, slides within these stirrups and is provided on its inner or upper side with a downwardly-beveled recess, D, which recess is intended and adapted for a seatinto and against the bottom of which the teeth of the saw are severally forced by the punch for setting the teeth.

At the end of the barA, and rigidly affixed thereto and projecting therefrom, are two lugs, E E, each provided with a vertical aperture intended and adapted for hearings in which the punch F is supported and has a vertical movement. The lower end of the punch F is beveled off at the same angle as the bottom of the recess D, into which recess said punch is adapted, when struck on the top, to force the saw-tooth placed over the recess D. Around the punch F is a coiled wire spring, G, the lower end of which rests upon the lug E and the upper end rests against a collar rigid on the punch F, which spring is adapted to lift the punch away from the bar 0, over which, when extended, as shown in Fig. 1, the punch is located.

Near the other extremity of the bar A a jaw, H, is pivoted thereto by the cross-bars I I.

The inner end, H, of this jaw forms, with the side of the bar A opposite thereto, a clamp adapted to receive and hold the saw for gumming. The jaws of this clamp are forced and held together by means of a setscrew, J, interposed between the outer rear ends of the jaw H and the bar A, which set-screw turns upon a screw-thread in the bar A, its other end being against the jaw H, said set-screw being provided witha milled or nut-faced rigid collar for convenience in turning it up or down. There is an aperture through the jaw H, and concurrent and homogeneous therewith an aperture through the bar A,into which the gumming-punch K is fitted and in which it has free movement vertically in position shown in Fig. 2.

The bar A has a T-shaped recess in its top, and continuous therewith a recess in the side, which said top and side recess is adapted to receive and hold the saw-tooth gage L. This saw-tooth gage is adapted for gaging the drag or clearing teeth of the saw, which are a little shorter than the cutting-teeth. This gage consists of a pieceof sheet metal bent at right angles, forming a top and side, having a slot, M, cut through the top and down so far on the side below the inside of the top as the clearing-teeth should be shorter than the cuttingteeth of the saw, which slot is sufficiently large to permit the saw-file to run freely therein. The recess in the bar Ais of a proper size and depth for receiving said gage L therein, wherein it is retained by the large-headed stud N, rigid in bar A, the shank of which is adapted to be received within the socket O in said gage, while the edge of' the adjacent parts of the gage pass beneath the head of the stud.

The various uses of this tool are in part as follows: The tool being in the position shown in Fig. 2, a saw is inserted in the clamp H A, so that the part to be gummed will be directly across the aperture in which the punch K moves, and is made fast by means of the setscrew J, when the punch K is struck on the top with sufficient force to punch outthe part, as desired, which process is repeated as manytimes as is necessary to gum the entire saw. To set the saw, the tool is placed in the position shown in Fig. 1 and the bar G is moved out and adjusted so that the recess D is di- -reetly beneath the punch F, Fig. 1, and a saw lying on its side upon the barOis so far thrust under the punch that the point of one of the cutting-teeth is over the deepest part of the recess D. The punch F is then struck with suffieient force to set the tooth firmly down upon and against the bottom of the recess D, and the saw-gage L is removed from the bar A and used as hereinbefore indicated.

WVhat I claim as new, and desire to secure by Letters Patent, is

The combined tool consisting of the bar A, provided with a recess for the reception of gage L, the sliding bar G,pprovided with bev- DANIEL MoDONOUGl-I.

Vitnesses:

B. R. LEWIS, DANIEL GRAHAM.