US1023341A - Saw-tool. - Google Patents

Description

R. H. SULLIVAN.

SAW TOOL.

APPLIOATION FILED AUG. 11, 1910.

1,023,341 Patented Apr. 16, 1912.

wn m 34 WI T/VE 88E 8:

I IINVENTOR if/kflam [16 0/01 0 ATTORNEY COLUMBIA PLANoOR'Ai-H {IQ/WASHINGTON, D. c.

RICHARD H. SULLIVAN, OF LA CONNER, WASHINGTON.

SAW-TOOL. 1

Specification of Letters Patent.

Application filed August 11, 1910.

Patented Apr. 16, 1912.

Serial No. 576,688.

To all whom 2'25 may concern:

Be it known that I, RICHARD H. SULLI- VAN, a citizen of the United States, residing at La Conner, in the county of Skagit and State of Washington, have invented certain new and useful Improvements in Saw- Tools, of which the following is a specification.

This invention relates to tools which are employed in the operation of sharpening and dressing the teeth of cross-cut saws.

The object of my invention, generally stated, is to provide a simple, durable and inexpensive device of this character whereby the teeth of a saw may readily be put into efficient condition even by an unskilled filer.

The invention consists in the combination in a saw-tool of various deviceswhose offices are to guide a file in the sharpening of the cutting and raker teeth at selected bevels and angles; and also serving as a gage for the uniform swaging of the raker-teeth.

I attain these ends by the devices hereinafter described and illustrated in the accompanying drawings, in which- Figure 1 shows a front elevation of the I frame or body of the tool, partly broken away, and illustrates it as applied to the jointing of a saw. Fig. 2 is a like elevation of the tool illustrating the raker-tooth dressing attachment connected thereto. Fig. 3 is a like partial elevation, showing the cutting-tooth dressing attachment in operative connection with the 4.- is a rear elevation of the tool as represented in Fig. 8. Fig. 5 is an underside plan view of the tool body with a file, shown in dotted outline, secured thereto for jointing purposes. Fig. 6 is a sectional view taken through 6-6 of Fig. 2. Fig. 7 is a perspective view .of one of the file-guide elements, such as illustrated in Fig. 3.

The body of the tool, as best shown in Figs. 1, 1 and 5, is comprised of a horizontal member 10 having a web-element 11 depending from its rear edge and a depending ele ment 12 is provided at the front edge of said member. Intermediate the length of said tool body. Fig.

member, there is an opening 13 which is coextensive with recesses provided in the aforesaid elements 11 and 12.

To afford strength and stiffness to the structure of the tool body reinforcing ribs, such as 14, are provided. 15 is a block integral with said body and positioned in proximity to one end thereof in order to present a shoulder 15 see Fig. 5, against Which the edge of tang 16 of a file is contacted when the file-blade 17 is placed in juxtaposition with the underside 10 of the web, and, by reason of the tapering form of the tang, the file, when shoved sufliciently toward the end of the body provided with the block, the file is engaged between said block and the opposing surface of the web. With the file thus engaged and with the tool placed over a saw, as indicated in Fig. 1, endwise movements imparted to the tool will cause the file to be carried along the points of the teeth for rendering them of proper relative heights or jointed as it is colloquially called.

Centrally of the web 11 and extending downwardly from its top edge is a slot 18. Strips 19 and 20 protrude from the front face of the web, the former, 19, being disposed below the bottom of said slot and arranged horizontally while the other strips, 20, are vertical and are disposed at equal distances upon opposite sides of the slot. The function of said strips is to furnish the walls of a pocket whereinto the plates 21 or 22 of the attachments which I am about to describe are, upon occasion, seated to maintain the same in operative position.

Referring to Figs. '2 and 6, the plate 21 is provided with an elongated aperture 21. whose-major axis corresponds with that of the slot 18 to accommodate a headed screwbolt 23 which is employed as a pivotal support for a pair of arms 24 and also serves, through the instrumentality of a wing-nut 25, to secure the latter in adjusted position as well as fastening the plate 21 to the tool body. Said arms are formed with diverg ing upper portions whose opposing side faces 24: are machined to be in planes at right angles to the associated plate -21.

. its proper 26 are brackets projecting forwardly from the plate 21 and terminate in upwardly directed extremities 26 which are provided with threaded holes for the reception of screws 27. Said brackets furnish abutments against which the arms 24 are supported and by adjusting the bolt 23 and retaining the arms 24 in contact with such brackets, it is evident that the angle of divergence of the arms may be regulated.

28 represents a thumb-screw extending through a threaded hole in a boss 29 provided in the body element 12 for the purpose of clamping a saw blade against lugs 21" provided upon the plate 21 and with a selected tooth to bear against the inner faces 24 of said arms.

The function of the above described attachment is to provide means for accurately dressing the raker teeth, R, of a saw. To accomplish which the arms 24 are first regulated, as explained, to the selected angular relation at which it is desired to slant the sides of the tooth notches and secured by the bolt 23. The tool is then placed with the surface 10 seated upon two or more of the previously jointed cutting-teeth 0;. and shifted thereupon to present one of the armfaces 24 into position with respect to a sloping side of a raker-tooth notch so that the same, when filed down to coincide or be flush with the arm-face, will be dressed to angle. The tool is then shifted to bring the face 24 of the other arm into position against the other sloping side of the tooth notch so that this side may be filed in like manner. After the raker-teeth have been thus correctly shaped, with the ting edges,

arms 24 as guides, the points are successively swaged to hook or turn them outwardly, as indicated by P in Fig. 2, to an extent that its extremity will respectively coincide with the upper peripheral edges of the adj acent screws 27.

Referring now to Figs. 3 and 4, the plate 22 is provided with a centrally disposed upwardly extending tongue 22 which serves as a support for a pair of legs 31. Said legs are each provided near its upper end with a rearwardly directed stud 32 which extends through apertures 33 provided in said tongue, as shown in Fig. 4. Near the lower ends of the legs are provided slots 34 through which pass bolts 35 engaging in threaded holes provided in the plate for the purpose of securing the legs at various angular relations when they are adjusted about the stud connections with the plate. The outer edges 31 of the legs are beveled at angles suitable to the bevel of the cutof a saws cutting-teeth. Upon the inner side of each of the legs is desirably provided a lug having a sloping face 31" against which the screw-head 36, preferably conical, bears so that when the screw is driven more or less into a threaded hole provided in the plate 22 this screw will 00- act with the bolts 35 in retaining the legs in rigid connect-ion with the plate. The shank 36 of the above-alluded to screw is of a length to extend through the slot 18 and to the rear of the web 11 to receive a winged nut 37 whereby the attachment just described is detachably secured to the tool 'body.

a 38 represents a strip projecting from the front of the plate '22 and is employed in conjunction with thelegs 31 as a support against which a saw is clamped through the instrumentality of the screw 28, shown in Figs. 1, 5 and 6. By hingedly securing the legs 31 through the medium of the studs 32 it is apparent that the legs may be suitably swung to afford selected angles to which a cutting-tooth C of a saw is to be furnished. The tool with the leg-carrying attachment applied, is employed by straddling the saw. With the teeth points supporting the tool, as before explained, it is moved so that a cut-ting tooth is located directly in front of the pair of legs, andthen the bevels are formed by filing the tooth upon opposite sides until the metal is removed down to planes which correspond with the planes of the leg surfaces 31. It is to be understood that the arms 24 and legs 31 are utilized as guides which limit and regulate the filing of the respective raker and cutting teeth; consequently they should be manufactured of a metal sufficiently hard to withstand the cutting of the same by a file. The other parts, however, may be constructed of a cheaper material. 7

What I claim as my invention, is-

1. In a saw-tool, the combination with the tool-body, of a plate pro-vided with the elongated hole, a pair of arms, a screw extending through said arms and also through said hole and a slot provided in the body, a nut for said screw, a pair of brackets provided upon the said plate and cooperating with said screw and nut for supporting the arms in various angular relations, and I ating with said screw and nut for supporting the arms in various angular relations.

3. In a saw tool, the combination with the tool-body, of a plate, means to detachably secure the plate to said body, a pair of and means for fixedly securing said memmembers lc lingedly coinnected goo each other hers.

and to sai plate, an means or fixedly securing said members. RICHARD H. SULLIVAN.

4. In a saw tool, the combination with the Witnesses:

tool-body, of a pair of members hingedly W. E. SGHRIOKER,

connected to each other and to said body, L. L. ANDREWS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, I). G.

Images