US420479A - Crosscut-saw handle - Google Patents

Description

(No Model.) V M. 'E. TRUE.

- GROSSGUT'SAW HANDLE.

No. 420,479. Patented Feb. 4,1890.

'when in practical use.

To all whom it may concern.-

UNITED STATES PATENT OFFICE.

- MOSES E. TRUE, BATAVIA, XEYV YORK.

oRossoUT-s-Aw HANDLE.

SPECIFICATION forming part of Letters Patent No. 420,479, dated February 4, 1890.

Application filed May 10, 1889.

, Be it known that 1, Moses E. TRUE, a cit-izcn of the United States, residing at Batavia, in the county of Genesee and State of New York, have invented a new and useful Improvement in Crosscut-Saw Handles, of which the following is a specification.

My invention relates to improvements in crosscut-saw handles, in which a slotted clamping-bolt screw-threaded upon its upper end is used in conjunction with a correspondin g screw-threaded nut made fast to the woodon handle; and the objects of the improvement are to provide a cheap and durable handle readily attached to or detached from the saw-blade, yetfirmly secured to the blade These objects are attained by the mechanismillustrated in the accompanying drawings, in which- Figure l is a perspective view of the handle complete, with a portion in cross-section, showing the manner of securing the parts in a working position. Fig. 2 is a longitudinal sectional view of the nut, ferrule, and swiveled washer detached from the handle. Fig. 3 is aface viewof the clamping-bolt, showing the slot in the saw for the insertion of the saw-blade. Fig. 4 is a longitudinal view taken centrally through the slot of .the clampingbolt, showing the several strengthening-ribs for lessening the weight of metal, and Fig. 5 is an end perspeetive of the complete handle with the clamp-bolt removed.

Similar letters refer to similar parts throughout the several views. 7

The nut A, having the lateral flanges a, is connected to the ferrule B by the longitudinal bars I), thus forming a single piece of metal, which is preferably made of malleable cast-iron. To secure this nut- A to the wood handle C after the longitudinal slots 0 have been made in the handle, and within which slots the bars b, as well as the nut-flanges, are placed, the spurs 0. upon each end of the nut-flanges a are (by the use of a proper tool) turned over and made to cl i'nch into the solid wood, so that the nut cannot be withdrawn from the wood handle except by breakage of some of the parts. At the lower edge of the ferrule is a series of spins b, which are of sutlicient length to bend over the annular ribs d upon the upper edge of the washer 1').

Serial No. 310,324- (No modal.)

washer D is loosely attached to the ferrule by means of the retaining-spurs b, so that the ferrule and the attached handle will freely revolve, while the washer remains stationary, for the purpose of tightening the handle upon the saw witlront-displacement of the washer from its contact with the blade. .The washer D has upon its periphery and in line with the axial center of the washer ears d, upon the lower edge of which, in the line of their length, are notches (Z within which notches the back of thesaw-bla-de enters,thns preventing the washer from turning with the handle when the saw is being attached or detached from the said saw-blade.

E is the saw-clamping bolt, having a longitudinal slot 0 of sufficient length to receive the end of the saw-blade, to which it may be attached. This slot does not extend the entire length of the bolt, but enough of the solid metal is left at the lower end of the same to prevent breakage when in practical use upon the saw-blade. The upper end of the clampbolt is provided'with a tang 1', which is screwthreaded to correspond with the nutA, and within which it enters.

To save metal without diminishing the strength, as well as to facilitate the melding of this clamp-bolt, (which is preferably made of malleable, iron,) I longitudinally recess'the bolt upon either side, so that only a thin central lateral web is left next to the saw-blade, thus forming ribse" upon the outer edges of the bolt, which gives rigidity and strength to the bolt with a minimum amount of metal. If desired, lateral ribs 6 may be made upon either side of the bolt. A hole for the insertion of the bolt is made in the end of the wood handle of sutficicnt depth anddimensions to permit the bolt-tang to pass beyond the nut (when the parts are in position) to accommodatethe handle to wide or narrow saw-blades. In placing the handle upon the blade the clamp-bolt by its slot, is made to pass over the end of the blade sutlicientlyfarto form a bearing for both of the notched washer-ears which rest upon the back of the saw, the.

- nut,is turned (the bolt and washer remaining stationary) until by means of the screw i threaded bolt the handle is firmly clasped to eral slot in the lower end, the flanged nut, '10 the blade and ready for use. By reversing the ferrule, the longitudinal connecting-bars, the movement of'thehandle the same can be and the spurs a, substantially as' described, I removed from the saw-blade when desired. and for the purpose set forth. 5 Having now described my invention,wha't1 claim as new, and desire to secure by Letters Patent, is-.

' Mos ss E. TRUE.- Witnesses:

The combination, with a clamp-bolt, of the G. \V. FORD, wooden hgmdle having the bolt-hole and lat- MYRON H. PECK, J r

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