US802836A - Saw-swage. - Google Patents

Description

PATENTBD OCT. 24, 1905.

T. WALKER.

SAW SWAGE.

APPLIOATION FILED 00T. zo, 1903.

2 SHEETS-SHEET 1.

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,man kus l K z No. 802,836. l PATENTED OCT. 24, 1905. T. WALKER.

SAW SWAGE.

APPLICATION FILED 001220, 1903 2 SHBETS-SHBBT 2.

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* t IIIIIII N will THOMAS WALKER. OF BERGLAND, MICHIGAN.

SWMSWGIE.

Specification of Letters Patent.

Patented Oct. 24, 1905.

,applicatif i led October 20, 1903. Serial No. 177,776.

To all whom t may concern:

Be it known that I, THOMAS WALKER, a citizen of the United States, residing at Bergland, in the county of Ontonagon and State of Michigan, have invented a new and. useful Saw-Swage, of which the following is a speciiication.

My invention relates to saw-swages, and is an improvement on the saw-swage for which I was granted United States Letters Patent No. 608,494.

The objects of these improvements are to provide means for taking up wear on the eccentric; to provide suitable adjustable stops, so that the action of the eccentric on the sawtooth. can be regulated; to provide an improved construction of the anvil, and to allow a wider range of adjustment in the saddle.

My invention consists in the novel features of construction and combination of parts hereinafter described, particularly pointed out in the claim, and shown in the accompanying drawings, in which- Figure 1 is a perspective view of my device complete. Fig. 2 is a side elevation showing the side opposite to that shown in Fig. 1. Fig. 3 is a transverse vertical section through the swage-block. Fig. 4 is a section through the swage-block at right angles to that shown in Fig. 3, the eccentric being shown in elevation. Fig. 5 is a perspective view of the anvil-carrying block. Fig. 6 is a perspective view of the anvil. Fig 7 is a perspective view of the eccentric-shaft.

In the drawings, Arepresents the swageblock substantially cylindrical in form. The lower half of this block is diametrically slotted, as at A. An axial bore A2 extends from one face of the block to the slot A. The top of the block is cut ofi", leaving a smooth Vflat upper surface, and extending downward from the central portion of this surface is a recess or opening A3, communieating at its lower end with the slot A. Through the lower slotted portion of the block, slightly below and to one side of the bore A2, is a bore A, intersecting the slot, andwon each side of the latter a bushing B is iitted into the bore A4. The inner ends of ting in the sockets.

jacent the other end the shaft is polygonal and tapering, as shown at C3. On this portion is tightly fitted a ratchet C4. This latter has the teeth formed on the outer side of an inner flange C, and on the smooth cylindrical portion adjacent the teeth fits a handle C, having ratchet-teeth C7 coacting with those carried by the ilange C". This shaft C slides and rotates in the bushings B, the eccentric portion working in the slot and lower portion of the recess A3. On each side of the recess A3 is formed a parallel threaded socket. A plate D is provided with a depending sleeve D', which extends downward into the recess A when the plate is in position on the cut-oil` portion of the swage-block, the bore of the sleeve extending or being continued. upwardly through the block and threaded in its upper portion. At each end of the plate is arranged a depending flange D2, which 'fits over the sides of the block and holds the plate from endwise movement. An elongated transverse slot D3 is formed in the plate on each side of the sleeve and is adapted to register with one of the threaded sockets formed parallel to the recess A3. The plate is adjustably held to the block by threaded. bolts and washers, the bolts DL passing through the slots D3 and `lit- The lower portion of the sleeve is cut away on the side adjacent the eccentric. An anvil E is adjustably held in this cut-off portion of the sleeve and has a stem E extending upwardly in the sleeve. The und er surface of the anvil is slightly beveled downwardly and rearwardly from the eccentric, as shown at E2. A threaded rod E" works in the upper portion of the sleeve, which is also threaded, and bears on the upper end of the stem E, limiting upward movement of the anvil.. The rod E3 has a polygonal head E4 at its upper end adapted to be turned by a wrench. The sleeve D has a limited amount of play in the recess A3 and is adjusted and held in the desired position by the threaded bolts F working through suitable threaded bores in the swage-block, the inner ends of these bolts bearing on opposite sides of the sleeve.

To limit the movement o'f the handle CG in one direction and the consequent throw of the eccentric C toward the anvil, an adjustable stop is provided as follows: To that side of the swage-block on which the handle C is located a bracket G is bolted, the bracket extending slightly to the rear of the block IOO IIO

and having a curved slot G in its rear portion, the curvature oi the slot being upwardly and forwardly. An arm G2 carries at one end a set-screw G2, working in the slot G, by which the arm is secured to the bracket at any point along the slot and at any desired angle to the bracket. At its outer end the arm carries a pin G4, extending 'into the path of the handle C and limiting rearward movement of the handle. On the opposite side of the swage-block is bolted a horizontal forwardly-extending bracket H, having a curved upwardljT and Jforwardly and longitudinallyT slotted portion or arm H. To the outer end of this bracket is pivoted intermediate its ends an arm H2, longitudinallyT slotted at H2 in its forward portion. rlhe arm H2 has adjacent its rear end a pin extending through the slot of the arm H', and a suitable bolt and washer H4 iit on this pin and clamp the arm H2 at the desired angle, the construction being similar to that shown at G2. The saddle comprises a pin J, sliding in the slot H3 and having a head J bearing against one side of the arm H2, and a nut J2, threaded on the pin J, bears on the opposite side of the arm H2 and clamps the pin against movement along the slot. The pin-head J has a perforation in which slides vertically a threaded stem J '2, on which a suitable binding-nut works. At its lower end the stem carries a shoe J, having depending side arms adapted to lit over a saw-blade. A flat wear-plate J 5 is carried by the under surface of the shoe and is adapted, by reason of its length, to be simultaneously on two or more saw-teeth.

The operation of my device is as follows: The saw to be swaged is Vlitted within the slot A, the tooth to be acted on having its point brought into position between the anvil and eccentric, the saddle having been adjusted to the desired angle. The toothed edge of the saw being brought to bear on the wear-plate of the saddle, the saw is clamped in the position by the bolts K, working in threaded apertures K in the swage-block and extending to the slot A. One of these bolts may be retained in a iixed position and the other operated by means of a ratchet K2 andrat-chethandle K3, similar in construction to the handle Cf and its cooperating parts. The saw being clamped in position, the anvil having been adjusted as desired, the handle C6 is thrown rearward, forcing the eccentric against the tooth in advance of and below the point and crowding the back and crown of the tooth between the eccentric and beveled face of the anvil. This operation is repeated for each tooth to be acted on with the exception of the adjustment of the saddle, which would remain the same Jfor each tooth of the saw.

A pivoted recessed pawl L is adapted to drop into the annular grooves C2 and lock the shaft C against sliding movement.

Having thus fully described my invention, what l claim as new, and desire to secure by Letters Patent, is-

The combination with a swage-block, an anvil carried thereby, means for setting a saw-tooth on said anvil, a bracket carried by the-swage-block and having a curved slot therein, an arm pivoted intermediate its ends to the bracket, a pin carried by the arm and adapted to engage the curved slot of the bracket, said pin being arranged to the rear of the pivotal point of the arm, a nut working on the pin and adapted to clamp the arm to the bracket, and a saddle adjustably carried by the arm.

THGMAS VALKER. Wvitnesses S. H. SHANKEY, A. C. HARGRAVE.

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