US977722A - Saw-set. - Google Patents

Description

D. E. PABUN.

SAW SET.

APPLI'UATIOH FILED AUG. 1a, 1909.

kPatented Dec.6,191Q.

NVN .WN MN A setting.

la citizen of the United. States, residing at rious ways, one form of which I have shown plement comprises a shank 1,. the rear por- 420 1 is a head 3. The head 3 may be of any DANIEL E. FABUN, OF LOS ANGELES, CALIFORNIA.

SAW-SET.

aimee.

specification of Letters Patent.

Patented Dec. 6, 19H).

Application tiled August 16, 1909. Serial No. 513,202.

To all 'whom it may concern:v i

Be it known Athat I, DANIEL E. FABUN,

Los Angeles, in the county of Los Angeles* and State .of California, have invented a new'and useful Saw-Set,.of which the following is a specitication.

This invention relates to saw sets and the main object of the invention is to provide an implement which will automatically im part a hammer blow toset the tooth. 'Here tofore hand implements of this character set the tooth by a sliding bolt, the pressure of which against the tooth depended upon' the manual pressure used by the operator, which obviously would not always be a uniform pressure, as the muscular effort could not be gaged to' an eXtreme nicety and, therefore, seme teeth would be set more or less than others which is avoided by the presentinvention, by reason of the olt re` ceiving en exact pressureat each impulse irrespective of the exact amount of muscular pressure employed by the operator. Inasmuch as this construction produces a blow of uniform force against each tooth forcing it into an exact angle against the anvil, all teeth of the sawwill be evenly set, thereby causing the saw to cut better and the teeth wear longer before requiring sharpening or My invention may be carried outin vain the accompanying drawings, wherein:

Figure l isa side elevation, partly in sec tion, of the implement. Fig. 2 is a plan view.

` In the embodiment shown herein the imtion of which is formed with a handle or finger grip 2. At the front end of the shank.'

preferred form of constructiombeing herein shown as provided with an anvil et adjustable vertically by means of a thumb screw 6 is an adjusting screw for regulating the angle to which the tooth is set.

v Slidably supported in the shank 1 is a bolt or hammer 7 the' front end of which is beveled at 8 to form a triangular shaped head Acorresponding approximatelyy to the shape of thesaw tooth. The front end ofthe hammer v"7 is slidableV in a bearing 9,

the rear end being slidable in a bearing 10.'A A nut 11 isscrewed on the hammer 7 near the front end and a coil spring 12 eneircles the hammer and is interposed between the nut l1 and the bearing l0. By adjusting the nuty 1l the tension of the spring-12 may be regulai ed. The rear end ofthe hammer 7 is formed with a notch 13 and a rear beveled portion 1l. 'lhe notch 13 is engaged by asliding latch 15 in a hand-,lever 1G, the coil spring 1T serving to yieldingly press the latch l5 ujmf'ardly. The latch 15 is slotted at' 18 and a pin 19 extends therethrough and limits its movement. The hand lever 16 is pivotedv at 2O to the lever 2 and a Hat spring 21 is arranged between the tivo hand levers serving to hold' the hand lever 16 elevated normally.

In operation the head 3 is placed over the cutting r`edge of the saw with the tooth which is'tobe set lying between the end of the hammer 7v and the anvil Il, the hammer 7 having been slightly retracted by pressing down on the lever 16 to permit the entrance of the tooth between the end of the hammer Then the hand levers 1G and the' anvil. and 2 are squeezed toward each other and the latch 15. acting against the notch 13 retracts the hammer? compressingthe spring ll2until the-latch 15 passes out of engage- ,into the notch 18, `so that the parts are automatically restored.` It will be noted that the hammer blows-imparted to the teeth of the saw are all of 4the same force, this 'force being produced automatically by the spring and thus the teeth are all evenly set. Moreover, the operation of setting the saw can be lperformed much quicker with the automatic mechanism herein provided th an heretofore.

1. A saw set comprising a shank,A a head on the shank provided with an anvil, a hammer slidable on the shank," a, spring in the shank bearing against the hammer, a pair of hand levers, Ioneof which is fixed to the shank and the other pivoted tothe shank, a spring pressed latch carried by the j pivoted hand lever, the hammer having a notch which is engaged by said latch.

2. A saw set comprising a hollow shank having a finger grip extending therefrom line with the end of said hammer, a hand lever pivoted to said shank and extending in the same general longitudinal direction 'as said shank, and means operated by said hand lever for co-acting with said hammer for retracting said hammer longitudinally in said shank, placing said spring under compression and suddenly releasing said hammer. f

3: A saw set comprising a 'shank having a finger grip extending therefrom in the same general longitudinal direction, a hammer longitudinally slidable in the shank, a coil spring inthe shank for propelling said hammer longitudinally therein, a head on the shank, an anvil on the head in line With said hammer, a collar screwed on said hammer against which said spring bears, a hand lever pivoted to said shank and extending in the same general longitudinal direction as said shank, and means operated by said hand lever for retracting the hammer to compress the spring and automatically repivoted together, one of said levers having a shank with an anvil at the. forward end thereof, a hammer slidalole'in said shank, elastic means in said shank for driving said hammer toward said anvil, said shank extending in the same general longitudinal direction as said hand levers, the other lever vhaving means operated by pressing said hand llevers'together for moving said hammer away from said anvil and then releasing said hammer.

, In testimony whereof, I Ihave hereunto set my hand at Los Angeles, California, this Zth day of August 1909.

DANIEL E. FABUN.

'In presence of- Gr. T. HACKLEY, FRANK LLA. GRAHAM.4

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