US433947A

US433947A - Cfiarles f

Info

Publication number: US433947A
Authority: US
Publication date: 1890-08-12
Anticipated expiration: 1907-08-12

Description

(No Model.)

0. F. LEOPOLD.

SAW SET.

No. 433,947. Patented Aug. 12, 1890.

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UNITED STATES PATENT QFFICE.

CHARLES F. LEOPOLD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO \VILLIAM J. LLOYD, OF SAME PLACE.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 433,947, dated August 12, 1890.

Application filed May 6,1890. Serial No. 350,819. (No model.)

To It whom it may concern.-

Be it known that 1, CHARLES F. LEOPOLD, of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented a certain new and useful Improved Saw-Set, of which the following is a true and accurate description, reference being had to the drawings, which form a part of this specification.

Myinvention relates to the construction of devices used for giving the proper bend or set to the teeth of saws and known as sawsets; and my object is to furnish an improved tool of this kind having an adjustable gage combined with it and by which the jaw of the tool can be brought to the same position on each and every tooth it is applied to.

In the drawings which illustrate my invention, Figures land 2 are respectively side and top views of a saw-set provided with my improvement in its preferred form, and Figs. 3 and 4 are similar views showing a saw-set of somewhat different construction and provided with a modified form of my improvement.

A and B are the handles or levers of the tool pivoted at C, the lever B having the jaw 19 formed on its end and the lever A having on its end the frame or box a, which sustains the anvil. Projections a a are also formed on lever A, as shown, and serve as gages regulating the depth to which the jaw b will engage the saw-tooth. D is a gage, made adjustable to fit the tool for use with saws of different thickness. It is made in the form of a saddle, with projecting arms D D, and with a slot (Z, by which it is made adjustable on a threaded pin upon which the clampingnut E screws. F is the anvil, which, inthe tool shown in Figs. 1 and 2, is secured in the frame a by a screw G, and which, in the tool of Figs. 3 and 4c, is made adjustable by means of the screws G and H.

I is a spring, arranged, as shown, to hold the jaw open.

In all the above-noted features the tools shown are of well-known construction and are simply shown as well adapted for use with my improvement.

J, Figs. 2 and 4, indicates a saw.

K is a gage, the function of which is to enter between two teeth of the saw and by resting against the side of a tooth to gage or regulate the position of the tool, and particularly the position of the jaw 1), upon the tooth it acts upon. This gage is secured to the tool so as to be laterally adjustable with reference to the jaw b. Preferably I form and secure the gage K to the tool, as shown in Figs. 1 and 2. As there shown, an arm 16* is pivoted to a pin it, projecting from one of the levers, as shown at A. To the free end of the arm an obliquely-set segmental plate 10 is attached or formed with its outer rim 7c of substantially the outline of a circle drawn from the center of the pivot L is a clamping-nut screwing on the pivotpin 10'.

The operation of the device is almost obvious. Then it is desired to set the teeth of any saw, the nut L is loosened and the jaw b carefully placed in position on one of the teeth. The segmental gage-plate k is then turned down until it rests against the side of a tooth, as shown in Fig. 2, and it is then clamped rigidly to the tool. Having been thus adjusted, the gage-plate is moved to every alternate tooth along the saw, and the jaw b of course comes to the same position on each alternate tooth, thus insuring that each tooth operated on shall receive the same treatment. The clamping-nut L is shown as a good and convenient device. Any other clamp may of course be used to hold the gage-plate in position without alteration of my invention.

I11 Figs. 3 and 4: the laterally-adjustable gage-plate K is made up of a part K adapted to lie along the top of the arm A, and having a downwardly and outwardly projecting arm K, adapted, as shown, to enter between the teeth of the saw. In the part K a slot K is formed, through which the pin e (see Fig. 3) passes. By this 7 construction the gage-plate can be both turned and slid to various positions, and it is clamped in position by the nut E. I have shown this device merely as illustrating that while I prefer the construction first described my invention is capable of great modification in its application.

Ico

i am, I believe, the first to use a laterallyadjustable guide-plate secured to the main frame or handle of the tool and independent of all other adjustable parts thereof.

Of course the nuts, so called, E and L may be replaced by set-screws screwing into threaded perforations in the arm A, or the one L may screw into arm B.

Having now described my invention, what I claim as new, and desire to protect by Letters Patent, is

1. A saw-set having pivoted handle-levers,

one sustaining the jaw and the other the anvil, as described, in combination with a laterally-adjustable guide-plate secured to one of the handle-levers and independent of all other adjustable parts of the tool.

2. A saw-set having in combination therewith an adjustable gage-plate consisting of A an arm is, pivoted to the side of the saw-set