US420480A - Crosscut-saw handle - Google Patents

Description

(o Model.)

M. E. TRUE. GROSSCUT SAWYHANDLE.

Patented Feb. 4, 1890.

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MOSES E. TRUE, OFBATAVIA, NEW YORK. il;

cRosgs'ouT-SAWHANDLE.

srEcI'FroA'rIoN forming part of Letters r'atentnofie'ogso, dated February 4, 1890.

Application ned May 1o, 1889. serial No. e1o,e25. '(No model.)

To @ZZ whom it may concern:

Be it known that I, MOSES E. TRUE, a citizen of the United States, residing at Batavia, in the county of Genesee and State of New York, have invented a new and useful lmprovement in Crosscut-Saw Handles, of which the following is a specification.

My invention relates to improvements in handles adapted for use upon crosscut-saw blades, capable of beingreadily attached to or detached from the blade; and the object of the improvement is to provide a eheaply-madeand eiticient handle having a screw-clamping device made to coact with a screw-nut secured within the wooden handle in such a manner that the full strength of the timber may be preserved, as well as perfect adjustability attained, which is accomplished by the mechanism illustrated in the accompanying drawings, in which- Figure lis a perspective view of the handle, partly in cross-section, showing the parts inwerking position. Fig. 2 is 'a perspective view of the flanged securing-nut detached and with the nut-retaining pins in position. Fig. 3 is a plan view of the saw-clamping bolt, showing the lateral strengthening-ribs upon each side of the longitudinal slot within which the saw-blade enters. Fig. iis an end view of the lower part ot' the handle, showing the method of inserting the flanged nut within the handle; and Fig. 5 is a detached view of the` ferrule, provided with inwardlyextending prongs for securing the same to the handle.

Similar letters refer to similar parts th roughout the several views.

The wood handle A is provided at its lower end with a hole a of sufficient depthl to receive the slotted clamping-bolt B to the extent necessary for its accommodation to the dierent widths of saw-blades, as will be hereinafter explained.

C is the fer-rule upon the lower end of the handle, (to prevent splitting of the said handle,) having upon its free edge a series of spurs c, which reach within the hole of the washer D s uiiiciently far to permit of an outward bend, and thereby loosely clinch over the rib d of the washer, thus allowing the handle to turn upon the washer. This washer is provided with ears d upon its periphery,

the ears having notches d2, within which the back of the saw-blade enters, thus preventing the washer from turning when clamping the handle to the saw.

c are prongs upon the ferrule C, that stand in a reverse direction from the spurs c, which enter within grooves, (presently explained,) by which the washer is prevented from turning upon the wood handle, and securing the same to the handle.

E is a screw-nut having across its periphery and upon the line of the axial center iianges e, which flanges are provided with holes e', through which holes pass the securing-pins e2, for fastening the nut to the handle. Vithin the hole o, are grooves a', two in number, extending radially from the axial center of the hole, and are made to reach some little distance longitudinally of the handle center, and are of suiiicient dimensions to closely receive the prongs e of the washer, as Well as the iianges of the nut E, which nut is round and made to tightly iit into the lhole within which it is driven. Thishole extends about one-half the length of the handle, and the nut is located at about half the depth of the hole after the nut is seated.l Pin-holes are drilled part way through the handle at the point of intersection with the nut-flange holes, and into these holes are driven the metal pins e2, the pins passing through the nut-flange and far enough past the same to enter within the wood beyond, thereby strongly securing the nut to the handle and preventing the removal of the nut as the handle is'tighten ed upon the saw-blade by meansof the screwthreaded tang upon the clamp-bolt, the slot of which allows the clamp to be passed over the end of the saw-blade,while the solid free end of the clamp engages with anotch made in the 'tooth edge of the saw, so that as the threaded tang of the clamp-bolt is screwed into the nut within the handle the clamp carrying the saw is drawn to the handle and the parts will be firmly united each with the other. To disengage the handle from the saw, a reverse movement is given the handle, thereby allowing the same to be slipped off over the end of the blade.

In order that strength and rigidity may be given the clamp-bolt B with a small amount of metal, ribs f are made to extend longi- IOO tudinally of the slotted portion of the bolt and upon either side thereof, so that quite a material reduction is made in the heft of the bolt Without saerieing in any manner the strength thereof.

Having nov7 described my invention, Whatl claim as new, and desire to seoure by Letters Patent, is

1. The combination, with a ela1np-bolt,of the wooden handle having the grooved hole in the lower end thereof, the flanged nut adapted for insertion in the grooved hole, the nut-retaining pins, the ferrnle having the prongs c entering within the handle-groove, and the notched Washer swiveled thereto, substantially as described, and for the purpose stantially as described, and for the purpose set forth.

MOSES E. TRUE. Witnesses:

G. W. FORD,

MYRoN II. PEoK, J r.

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