US327609A - Saw-set - Google Patents

Description

' mm I w. 0. ,SMITH;

sawsma' A D No.327,609. Patented Oct. 6, 1885.

UNITED STATES PATENT WILLIAM ojsinTH, OF BOSTOX, MASSACHUSETTS.

SAW-SET.

SPECIFICATION firmi part of Letters Patent No. 327,609, dated October 6, 1885; Application filed August e2, ms. Serial x0. 15,049. (No model.) i

To all whom it may concern.-

Be it known that I, \VILLIAAI 0. SMITH. of Boston, (Cambridge,) in the county of Middlesex, State of Massachusetts, have invented a certain new and useful Improvement in Saw- Sets, of which the following is a description sufiiciently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, refercncebeing had to the accompanying drawings, forming part oflhis specification, in which- Figure 1 is a side elevation of my improved saw-set; Fig. 2, a top plan view of the same; Fig. 3, a vertical longitudinal section; Fig. 4, a. side elevation of the set provided with the attachment shown in Fig. 5, and Fig- 6a diagramshowing the method of setting the teeth of a circular saw.

Like letters of reference indicate corresponding parts in the different figures of the drawings.

My invention relates more especially to that class of saw-sets which are designed for setting circular saws; and it consists in a novel const-rnction and arrangement ofthe parts,'ashereinafter more fully set forth and claimed, by which a more desirable and effective article of this character is produced than is now in ordinary use. 1

The nature and operation of the improvement will be readily understood by allconversant with such matters from the following explanation.

In the drawings, A represents the bed or body of the set, which is provided with a downwardly-projecting flange, B, on'its under side, by means of which the set may be secured in an ordinary bench-vise.

A vertically-arranged standard, 0, is mou nted on one end of the bed A, and-secured thereto by the screw-bolt I), the bolt passing loosely through a hole in the bed, and thereby enabling the standard to be revolved laterally.

A slot orrccess, E, is" formed in one side of' the standard, the lower partof said slot being inclined from a: to m to form nnanvil, a, on which the saw-tooth rests while being set.

Fitted to slide vertically in the upper portion of the standard 0 there is a bar, H, and pivoted at f in said standard there is a horizontally-arranged handle, J, said handle being jointed to the bar H by the bolt :4 in'such a manner that when the handle is raised or lowered corresponding vertical reciprocating movements will be ilnpartedto' said bar.-

fered or inclined to correspond with the incline of the anvil or bed a. A rest, K, is. mounted on the bed A, opposite the standard 0, said rest being provided with a laterally-projecting flange, 2', bolt b, and not], for securing it to the bed, the bolt passing through an elongated slot, \V, in the bed, thereby enabling the rest to'be adjusted longitudinally thereof.

A funnel-shaped cavity or recess. L, is formed in the upper end of the rest K, and projecting vertically from said rest atthe center of said recess there isa'threaded rod, M, provided with a nut. N.

The shape of the body of the nut is thatof an inverted cone, its form and size approximating the form and size of the recess L, which it" enters when turned onto the rod M'.

In the use of my improvement for setting circular saws the nut N is removed and the saw placed horizontally on the rest K, with the rod M projecting upwardly through the arbor-hole in the center of the saw. The nut N is then turned onto the rod M, and as it descends its lower end enters the arbor-hole and crowds the saw down onto the rest, where ters it on the rest as it descends. The rest is then adjusted on the bed A to bringthe teeth of the saw into proper position over the anvil a, after which it is secured by the nutand bolt. lb, the teeth of the saw being set or bent by means of the bar Hand handle J ina mana more explicit description. When one toot-h ofa saw has been set, as described, the saw is revolved intermittently the distance of one the anvil a and set in like manner.

In setting teeth which rake or are considerably curved it is desirable to b'end the point at a right angle to the body of the tooth,

when the handlcJ of the set is arrangedin parallelism with the body A the teeth will be bent on the line kl, or obliquely. To obviate The lower end or facet or the barHis cham-v n'er which will be readily obvious without a tooth ata time on the nut N as a center-until. :all of the others are successively brought over as shown by the dotted line a: a; in Fig."6; but

it is firmly held by the nut, which also centhis ohjectiou-tha-t is to say, to avoid bend ing or setting the teeth on the line I: k-the standard C is turned on the bolt D until the front edge of the anvil a stands at a right angle to the point of the tooth, in which position it is secured by said bolt, so that when the bar H is forced down by the handle-J to i set the tooth the point of the tooth will be bent at aright angle toits body,or on theline we, as seen in Fig. 6, in which Q represents a portion of the saw, and v the tooth.

A bracket, R, is employed when the set is used for setting hand-saivs and other straight saws, as seen in Figs. 4 and 5. This bracket consists of a bed, T, whichis arranged on a plane with the anvil a, the bracket being secured to the standard 0 by-a bolt, 71, which passes transversely through the same. An arm, F, projects horizontally over the bed T from the upper portion of the bracket B, said arm being provided atits forward end with a vertically-arranged screw, 3

To prepare the setfor setting hand-saws the handle J is turned at right angles to the bed A and the bracket R- secured to the standard 0 by the bolth. The saw to he set is then placed on the bed, T. beneath the arm F, and the screw 3 turned down until it slightly touches the body of the saw, after which the saw is moved beneath the bar Hand the teeth set in a manner which will be readily under' stood without further description.

Projecting horizontally from either side of tion with respect to the bar H.

the bracket B there is a gage, 3', against which the teeth of the saw rest when it is in position 35 to have its teeth'set, the bracket being made adjustable on the bolt h by the slote to enable said gages to be arranged in any desired posi-' Having thus explained my invention, what Ielaim is.-- v 1. Ina saw-set, the bed A, provided with the flange B and slot 10, the rest K, provided with the recess L, rod M, not N, bolt b, and nut Z, and the standard 0, provided with the bined and arranged deseribed.- w

2. In a saw-set, a standard carrying an an-t vi], a setting-bar, and a handle for operating 59 7 'said bar, said standard being adapted to be revolved or turned laterally on the bed of the set to enable the point of the saw-tooth to be bent or set at right angles to its body, in combination with a snitablerest orsnpport for the 5' saw, substantially as described.

3. In a saw-set, the standard 0, provided with the anvil a, bar H, handle J, and bolt D, in combination with the bed A and means for properly supporting the saw while being set, 60 substantially as set forth.

\VILLIAM 0. SMITH.

fivitnesses:

E. W. BAKER. J OSIE E. WALTON.

45 'anvil a, handle J, bar H, and bolt D, eomto operate substantially as

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