US606335A - Saw-set - Google Patents

Description

{No Model.)

J. PRBDERICKSON. SAW SET.

time o TATES JORGEN FREDERioKsomoF Gimme, MICHIGAN.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 606,335, dated June 28, 1898.

Application filed December 6,1897. Serial No. 660,871. (No model.)

To all whom it may concern:

Be it known that I, J ORGEN FREDERICKSON,

a citizen of the United States, residing at Gaylord, in the county of ()tsego and State of Michigan, have invented certain new and useful Improvements in Saw-Sets; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain novel improvements in that class of saw-sets of which Letters Patent dated November23, 1897, No. 594,000, may be taken as a type; and the object of the present invention isto increase the efficiency and utility of the tool without materially increasing the cost of the same.

To this end the invention consists in the construction, combination, and arrangement of the device, as will be hereinafter more fully described, and particularly pointed out in the claim.

The accompanying drawings show my invention in the best form now known to me; but many changes in the details might be made within the skill of a good mechanic without departing from the spirit of my invention, as set iforth in the claim at the end of this specification. I

The same reference characters in the several figures of the drawings indicate the same parts of the invention.

Figure 1 is a perspective View of a saw-set embodying my invention. Fig. 2 is a longitudinal section. Fig 3 is a longitudinal section through the tooth-setting head of the tool. Fig. 4 is a side elevation.

The body 1 of the tool is preferably formed v of malleable iron or steel, and it is formed at one end with a cylindrical head 2, which is provided with a radial slot 3, which terminates in an alined threaded orifice 4. A thumb-screw 5 is adj ustably secured in said orifice, and the threaded end of said thumbscrew is longitudinally cut away to form a plain face 6 and shoulder 6, against which the points of the teeth of the saw are adapted to abut when the tool is being used as a set, and as this thumb-screw is adjustable the position of the gaging-shoulder 6 may be varied with reference to the too 7 of the slot 3, so as to adapt it to teeth of different lengths. It will the teeth isassured.

be noted that the top of the head of this thumbscrew is flat, so that it can be conveniently used as a swage from time to time during the process of setting the saw.

A set-screw 8 is adj ustably secured in the head 2 at a right angle to the body of I the thu mb-screw 5, so that after it has been adj usted to conform to the saw-teeth the plain face 6 of the screw 5 will be fixed parallel with the walls of the slot 3. A gage-screw 9 is mounted diagonally in the same end of the tool and in the same plane with the thumb screw 5 and at an acute angle thereto, and its projecting end, coming against the blade of the saw, acts as a gage to secure uniformity of set to the teeth.

The outer end of the screw 5 terminates in a hammer-head 10, which is useful in giving the finishing touch to a particular tooth not otherwise properly set. On one edge of the body is formed the integral flanges 12 12, which serve to support the tool upon the points of the cutting-teeth while the slotted plate 13 is being used to gage the rakerteeth of the saw, and this plate 13 is held in place by the set-screw. The cutting-teeth of the saw having been filed down to the proper length in order to fit the raker-teeth, the tool will now be placed upon the saw so that the flanges 12 12 will rest upon the points of the cutting-teeth, so that the points of the intermediate raker-teeth will project through the slot 15 in the plate 13, and by applying a file to the projecting points of the rakerteeth they may be brought down to the level of the face of the plate 13, and when all of the raker-teeth have been treated in this manner they will have the proper relative length to the cutting-teeth; 1 1.

One side of the tool is formed with parallel ribs 16 16, intersected by a slot 17, adapted to receive a file-blade 18, which is removably secured therein by means of the eccentric or cam levers 19 19, so as to hold the file at a right'angle to the ribs 16 16, and as the ribs rest against the side of the blade the face of the file is at a right angle to the plain of the blade and the proper shape of the ends of 20, 20, and 20 denotelateral integral studs projecting from one side of the toolyand 21 represents a fourth stud, which is adjustably secured in place by the set-screw 22, and these studs constitute the setting-gage to prove the teeth.

Having thus fully described my invention, What I claim as new and useful, and desire to secure by Letters Patent of the United States, is-

A device for setting, gaging and jointing saw-teeth, comprising a body portion formed on one side with the fixed parallel ribs 16 16 intersected by the slot 17 adapted to receive a file-blade, and the cam-levers 19 19 pivoted to the same side of said body portion near each of said ribs, so as to lock said file-blade in position in said ribs, substantially as shown 15 and described.

In testimony whereof I hereunto afiiX my signature in presence of two Witnesses.

JORGEN FREDERICKSON.

Vitnesses:

CHAS. A. LYON, W. L. TOWNSEND.

Images