US756425A - Raker saw-gage. - Google Patents

Description

No. 756,425. PATENTED APR. 5, 1904. STEPHENS. RAKER SAW GAGE.

APPLICATION FILED JULY 14, 1902.

no MODEL.

ma cams PETERS c0. Puo-rmhnu, WASNMBTON. n. c.

Patented April 5, 1904i UNTTED STATES PATENT OFFICE.

WILLIAM STEPHENS, OF MONTESANO, WASHINGTON.

RAKER SAW-GAGE.

SPECIFICATION forming part of Letters Patent No. 756,425, dated April 5, 1904.

Application filed July 14, 1902.

To a whmn it may concern:

Be it known that I, WILLIAM STEPHENS, a citizen ofthe United States, residing at Montesano, in the county of Chehalis and State of I/Vashington, have invented a new and useful Raker Saw-Gage, of which the following is a specification.

This invention is an improvement in implements employed in connection with the filing, gaging, swaging, and jointing of saws; and its object is to enable the teeth to be brought into uniform condition as to length and set.

The invention consists in certain novel features of construction, as hereinafter shown and described, and specified in the claims.

In the drawings illustrative of the invention, Figure 1 is a side elevation of the device applied. Fig. 2 is a top plan view. Fig. 3 is a bottom plan view with the frame in section on the line III III of Fig. 1. Fig. 1 is a view similar to Fig. 1, illustrating a modification in the construction. Fig. 5 is a transverse section on the line V V of Fig. 4:, illustrating the manner of employing the device in jointing saws.

In this invention is comprised a frame 10 of suitable width and preferably formed with interstices, as shown, to lighten it and with ribs 11 12, extending laterally from one edge, the ribs having a space between their adjacent ends and the frame 10 having a recess in its edge opposite the space between the ribs and affording means for the reception of a slotted gage-plate 13. The plate 13 is secured removably to the plate 10, as by screws 1 1, the body of the plate being uniform in width with the thickness of the plate 10 and with a projecting portion 15 lying parallel to the body portion 13 and connected thereto at one end only, as shown at 16. Beneath the ribs 11 12 are secured springs 17 18,each rib having its own independent spring, asshown, and attached by their outer ends only to the outer portions of the ribs 11 12, leaving their inner ends free and extending slightly beyond the inner ends of the ribs, as shown. Engaging the ribs 11 12 near their adjacent or inner ends are adjusting-screws 19 20, each screw adapted to pass through its respective rib and engage its respective springplate 17 18, and thereby adjust them nearer Serial No. 115,500. (No model.)

to or farther away from the plate 13 and its extension 15. Each of the adjusting-screws will be provided, preferably, with a janib-nut 21 22, as shown, to lock the adjusting-screws in position and also to support the jointingfile, as hereinafter shown. The inner faces of the ribs 11 12 will be some distance above the outer face of the plate 13 and its extension 15, as shown, so that the spring-plates 17 18 may be adjusted a corresponding distance.

In the ordinary form of crosscut-saws a certain number of the teeth are arranged as rakers or clearers, and these raker-teeth are arranged at predetermined intervals and shorter than the cutting-teeth and of uniform length, and one of the principal uses to which the present device is appropriated is to assist the filer in cutting off or swaging these raker-teeth. to a uniform length.

In the drawings a section of a saw of the ordinary form is indicated by dotted lines in position in the implement, 23 representing the body or back of the saw, 24 the cutterteeth, and 25 one of the raker or clearing teeth. The raker-teeth are either filed off to form them shorter than the cutting-teeth or swaged by turning points of the teeth outward,

as indicated at 26. The spring 17 is formed with a supplemental stop or transverse notch 27 to serve as a gage to guide the filer in swaging the raker-teeth, as hereinafter described. The implement may be employed for the purpose of a gage in cutting ofi the rakerteeth or as a gage to guide the operator in swaging raker-teeth or as a support for the file when jointing the saw. When employed as a gage to guide the filer in cutting off the rakerteeth, the plate 13 will be employed; but when employed as a guide to the operator in swaging the raker-teeth the plate 13 will be detached, as hereinafter shown. When employed as a jointer, the device will be employed, as shown in Fig. 5, with the file (represented at 28) supported by-one edge by the jam-nuts 20 21, as shown. When used as a jointer, the frame 10 will be reversed and the rear side placed next the face of the saw, with the file extending over that side and in position to engage the points of the teeth with the frame 10 in contact with the saw and serving as a guide to the file and hold it in proper relations to the saw-teeth.

In using the device with the plate 13 attached the implement is placed in position with the tooth which it is designed shall be a raker-tooth within the cavity between the plate 13 and its extension 15, with the adjacent cutting-teeth on either side engaging the springs 17 18. As before stated, the plate 13 and its extension come some distance below the lower line of the springs 17 18, which will cause the points of the tooth which it is designed shall be a raker-tooth to extend above the upper surface of the plate 13. The filer will then file off these projecting ends and move the implement to a position in connection with the next tooth which it is designed shall be a raker-tooth, and so on, thus insuring a perfect uniformity to the rakerteeth.

It will be readily understood that the height I of the raker-teeth may be perfectly adjusted by means of the spring-plates 17 18, which are adjustable by the set-screws 19 20.

With this simple device the raker-teeth may be formed of exact uniform length and perfectly conforming to and without in any manner effecting the integrity of the cutter-teeth.

The plate 13 and its extension 15 will preferably be of chilled iron or hardened steel,

so that the file will not affect it and which will indicate to the filer the requisite amount which shall be filed off from the raker-teeth.

The plate 13 is preferably detachable for renewal or repairs and to enable the operator to use the implement without the gage when the raker-teeth are to be swaged instead of filed off.

When employed as a guide to assist the operator in swaging the teeth, the stop 27 comes into action, serving as a stop to the last tooth swaged and coacting with the springs 17 18 to indicate the exact relative lengths of the teeth. In employing the implement for this purpose the springs 17 18 are adjusted to engage the cutter-teeth on opposite sides of the tooth to be swaged. One point is then swaged to the desired height or until it just engages the stop 27 and then the other point of the same tooth swaged until it will engage the stop, when the implement is reversed, and so on throughout the whole length of the saw. By this simple'means an implement is produced which may be readily adapted to guide the saw-filer in cutting off or swaging the raker-teeth or in jointing the saw and will greatly facilitate these operations and materially reduce the labor necessary to perform or not the jointer-file is exactly at right angles with the side of the saw, which position it is necessary for the jointer-file to occupy to ini The device will thus not only be of great;

advantage to the skilled operator, as by its employment his work will be greatly facilitated, but will also be very convenient to the unskilled operator, as by its use a person without previous knowledge or skill can do as good work as the most skilful operator.

Having thus described my invention, what I claim is 1. A saw tool comprising a supportingframe having spaced yieldable plates extending laterally therefrom and stationary at their outer ends and movable at their inner opposing ends, a stationary gage-plate detachably connected to said supporting-frame between said spaced plates and out of alinement with them and ad justing-screws engaging threaded openings in said frame and adapted to depress the movable ends of said spaced plates relative to said gage-plate, substantially as described.

2. A saw tool comprising a supportingframe having spaced ribs extending therefrom, yieldable plates connected by their outer ends to the outer ends of said ribs and movable by their inner ends, a gage-plate detachably connected to said supporting-frame between said spaced plates and out of alinement therewith, and adjusting-screws engaging threaded openings in said ribs and adapted to depress the movable ends of said spaced plates toward said WILLIAM STEPHENS.

Witnesses:

W. H. BUsH, J. W. PE'rrIJoHN.

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