US872445A

US872445A - Saw-setting tool.

Info

Publication number: US872445A
Application number: US18554103A
Authority: US
Inventors: John P Olson; Mogens C Christensen
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-12-17
Filing date: 1903-12-17
Publication date: 1907-12-03
Anticipated expiration: 1924-12-03

Description

-- No 872,445. PATB NTfi-iinm. a, 19in; J. P. OLSON & M. c.- cnnrswnusnn.

sAw SETTING TOOL. APPLICATION FILED DEO.17,1 903.

A TTORNEY.

luv/Emma:

- WITNESSES:

j of Washington, have invented certain new J9EE? I; OLSON AND. M'Mllliiil OilR No. l372,445. Specification or Applicashig filed Dccemher 17, 1903- Serial No- 3 85-5414 To all whom it may concern:

Be it known that we, JOHN P. ()LsoN and MoonNs O. Cmusrnnsns, citizens of the United States of America. and residents of,Tacoma, in the county of Pierce and State l and useful Improvements in Smvletting Tools, of which the following is specitication. f 4 1 Our invention relates to tools for gaging and correcting the set of saw esth and has for its object to rovide a single tool with whiohthis may; e done so that time and labor in setting" saw teeth may be saved. We attaiuthis object by the device illus trated. in the accompanying drawing, in which Figure 1 is aside view of our device gaging a tooth imperfectlv set, Fig. 2 is a similar view showing our" evice applied to the side of the tooth so ast'o act as a hammer set, Fig. 3 is a view similar to Fig-1 showing our device gag' gca :perfectly set tooth, and Fi .4 is a front view of our device.

imilar-lettersof reference refer to similar parts throughout the several views.

It has been, customary, in setting saw teeth, to have two tools; the s ider gage, for indicating the set of the toot and the hammer set, for bending the tooth to the correct set.v In order to operate with these tools it was necessary to first gage the tooth. then lay down the spider gage, ick up tl hammer sct, strike a blow with t is hammer, thenloy downsthe hammer set, pick up'the spider gage, test the set of the tooth, and if t e set wasthen not correct the same pro- :eedin" would have to be repeated.

it our invention the two tools are reolaoed by a sin leoneso that the successive aying down of one tool and picking up of mother tool is eliminated and the single, .00] is simply movedso that different porions thereof are brought into successive use.

Our inventiim consists of a heavy iron asting A provided with slight depressions B 1n the sides thereof which are placed heroin so as to fit the. grip of'the hand. The owcr surface 0 of the casting is inclined ml is intended for the little finger of the and to lic'undcr and thus to support the asting ,A more securely in the hand. The orkingside of the casting A is divided ito two main surfaces set at an angle to each CPIiIJIL' iZLJ, Ul HYUSOMA, WASHINGTON.

siiw-sn'r'rrno soon Letters Patent. Patented Dec. 3, 1907.

other as shown in the drawin The upper surface "1? vthereof is beve led off, as at it, along its upper edge and is adapted to act as a lianmiersct, while the lower surface "F" is provided with three projections fG thereon which terminate in one lane (different from the plane of the sur'acc D) and which act in conjunction with the adjustable projection, on the up 'er part of the tool, to form a spider gage. his adjustable projection consists of the ln ll formed in one corner of the up or si e of the casting A, and the screw passing through the lug "'l-i practically at right on les to the plane of the projections l". T 1e lock nut J keeps the screw I at the pro or ad j justmcnt.- 'lhc saw body is indicate on the drawing at "K and the saw tooth at C "lhc operation of our device is as follows Referring to Fig. l the pro'ections G are placed against the body of the saw in such a position that the end of the screw I COIllOS opposite the point of the teeth L to be tested. If, as in this case, there is play between the screw 1 and the sawtooth L the tooth needs to be set further out; orj-il the toothVL comes in contact with the screw 1 and there is play between either of the upper projections G and the saw body K then the tooth is set too far out; but, if there is no play then the tooth is correctly set, as in Fig. 3.

If the tooth necds setting the casting A is slightly raised and tipped forward so that the surface 1 comes a ainst the saw K and the tooth L in suc 1 a manner that the shoulder of the tooth comes very slightly above the lower line of the bevel edge D. Then the tooth "L is struck a blow with a hammer so as to bond its end to give the required sot. Then the casting A is lowered again and tipped back to its original level and the screw I is brought to the tooth L and the set is tested.

It will be noted that in the shnpc of the working s de of the casting A, 1t 1s esscn-,

tial that the plane of the surface K be at an angle with theplane on which the outer surfaces of the projections G lie. The reason for this is clearly indicated in Figs. 1 and 2; in gaging the tooth the surface is withdrawn out of the way, and in settingthe tooth the surface F and the projections (31 are withdrawn.

Having now described ur invention, what Si had at Tacoma, this 19th day of N0- we. claim and dgsire to secure by Letters Patrvem er 1903.

ent is:' r 5 v 7 JOHN P. OLSQN. 1

, A saw-set and gage conslstmg of a heavy 4 T 5 body having a hammer-set anvil and a spi- MOGENS CHRISTENSEN defigage in two planes which together fog'm Witnesses:

i bs in gle' cont nuous working face and whlch FREDERICK J. LARSON,