US787519A

US787519A - Saw-set.

Info

Publication number: US787519A
Application number: US21073004A
Authority: US
Inventors: Olaf E Lindfors
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-06-01
Filing date: 1904-06-01
Publication date: 1905-04-18
Anticipated expiration: 1922-04-18

Description

UNITEDV `STATES Patented April 18, 1905.

OLAF E. LINDFORS, OF BEAVER, UTAH.

SAW-SET.

SPECIFICATION forming partei Letters Patent No. 787,519, dated April 18, 1905.

Application tiled June l, 1904. Serial No. 210,730.

To all whom, it may concern:

Be it known that I, OLAri` E. LINDFoRs, a citizen of the United States,residing at Beaver, in the county of Beaver and State of Utah, 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 saine, reference beinghad to the accompanying drawings, and to the figures oi" reference marked thereon, which form a part of this specification.

This invention relates to improvements in saw-sets; and the main object of the invention is to provide a saw-set by which saws may be set with accuracy and much faster than by any of the old devices, which set only one tooth at a time, while my device makes a single stroke along thesaw-blade and in so doing set all the teeth in a few seconds by rolling a notched wheel along each side of the teeth. This and other objects I attain by the novel construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure 1 is a bottom view. Fig. 2 is a side view, and Fig. 3 a top view, of my saw-set. Fig. 4 is an outer end view of one of the wheel-carrying frames supported inside the main frame of the device. Fig. 5 is a side view-of the two small wheel-carrying frames. Fig. 6 is a bottom view of the frame at the left in Fig. 5 with one of the wheel-operating levers in position. Fig. 7 is a vertical central section through the wheel mechanism act-` ing at one side the saw-blade. Fig. 8 is a bottom view of one oi the steel wheels setting the saw-teeth. Fig. 9 is one of the smoothfaced wheels rolling alonggthe saw-blade near the teeth to steady it while its teeth are being set. Fig. 10 is an enlarged diametrical section through the saw setting and saw stead ying or clamping wheels of the device in working position upon the saw-blade.

Referring to the drawings by reference-numerals, 1 is the main Jframe or stock of the device. It is open in its middle portion and formed with two-handles 2, which the operator takes hold of in moving' the tool along the saw-blade, and with lugs 3, between which the saw-blade is guided. The central space 4 of the stock is traversed longitudinally by two bars 5, upon which are slidingly supported two small frames 6, which have their upper corners 7 pivoted together at 8 in plane with the meshing gears 9, each of which is keyed at 10 (see Fig. 7) on a shaft 11, journaled in the frame 6, and above said frame has a fixed collar 12, (see Fig. 7,) and above the same fixed keys 13 and a screw-threaded upper end 14, upon which is placed a thumb-nut 15, that draws tightly together and against the collar l12 the smooth clamping-wheel 16 and the sawsetting steel wheel 17, both of which have keyways 18 for the keys 13. The frames 6 are closed toward the sides of the saw by the two levers 19, pivoted at 2O to the stock and having each a cam 21 engaging in a transverse groove 22 of the adjacent frame 6. (See Fig. 6.)

23 represents springs secured at 24 to the stock and acting on the levers 19, so as to spread the frames 6 and their setting wheels or dies 17 for ready insertion ot the saw, which in Figs. 2, 3, and 1G is indicated by the numeral 25.

As best shown in Fig. 10, the wheels 16 hold the blade 25 as tightly as necessary and roll along it, while the teeth 26 of each rolling die or wheel 17 set the saw-teeth against the inclines 27 of the opposite wheel.

With each stock goes a series of pairs ot' die-wheels 17 so that in setting saws of iiner or coal-ser teeth a pair of die-wheels of the required fineness of teeth is placed on the shafts 11; but the smooth clamping-wheels 16 remain always the samewone pair.

To set a saw more or less, the screws 28 are adjusted so that the ends of the levers 19 stop against them when more or less actuated against the springs 23 by the lingers of the hands holding the handles 2 and moving the tool along the toothed edge of the saw-blade, or said screws may be placed like 28 in Fig. 1.

29 represents adjustment-screws, which may be used to regulate the forward position of the points of the saw-teeth between the setting-dies 17. Said screws 29 may have their 100 points provided with a cushion-plate, (not shown,) so that the end of the screw will not catch between the saw-teeth when they are large.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. Asaw-set having a main frame or stock with handles, a pair of smaller adjustable frames mounted in the main frame, a shaft journaled in each of the small frames, a pair of intermeshing gear-wheels fixed one on each shaft, and at the opposite ends of the shafts detachably-secured die-wheels with teeth having inclined saw tooth engaging faces and with faces between the teeth inclined oppositely to the incline of the die-teeth so as to set a saw b v rolling along opposite sides of its teeth, and means for adjusting said frames and die-wheels against each other, said means consisting of pivoted spring-opened levers en g'aging the small frames to close them together, said small levers or handles being arranged one near each of the main handles, in position to be grasped b v the hands operating the latter.

2. A saw-set having a main frame or stock with handles, a pair of smaller adjustable frames mounted therein, a shaft journaled in each of the small frames, a pair ofintermeshing gear-wheels fixed one on each shaft, and at'the opposite ends of the shafts detachablysecured die-wheels with teeth having inclined lsaw-tooth-engaging faces and with faces between the teeth inclined oppositely to the ineline of the die-teeth so as to set a saw by rolling along opposite sides of its teeth, and means for adjusting both of said frames and die-wheels against each other, said means consisting of pivoted spring-opened levers engaging the small frames to close them together, means for guiding the saw across the middle of the main frame, and means for insuring the closing of the small frames at the middle of the main frame.

3. A saw-set having a main frame or stock with handles, a pair of smaller adjustable frames mounted therein, a shaft journaled in each of the small frames, a pair of intermeshing gear-wheels fixed one on the end of each shaft, and at the opposite ends of the shafts detachably-secured die-wheels with teeth having inclined saw tooth engaging faces and with faces between the teeth inclined oppositely to the incline of the die-teeth so as to set a saw by rolling along opposite sides of its teeth, and means for adjusting said frames and die-wheels against each other, said frames being pivoted together in a plane with the meshing gears on a line tangential to the meshing-point.

V In testimony whereof I affix my signature in presence of two witnesses.

OLAF E. LINDFORS.

Witnesses:

Jas. H. SKINNER, GEORGE MUNFORD.