US1151078A - Handsaw. - Google Patents

Description

G. D. YOUNG.

HANDSAW.

APPLICATION FILED APR. 6. 1915.

Patented Aug. 24, 1915.

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GEORGE D. YOUNG, OF NEW YORK, N. 'Y.

HANDSAW.

Specification of Iietters Patent.

Patented Au 24L, 1915.

Application filed April 6, 1915. Serial No. 19,463.

To all whom it may concern: I

Be it known that I, Gnoncn D. YOUNG, a citizen of the United States, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Handsaws, of which the following is a specification, such as will enable those skilled in the art to which it appertains' to make and use the same. 7

This invention relates to hand saws of the class usually used by carpenters, and the object thereof is to provide an improved device of this class in which the blade is detachable from the handle and may be ad justed at different angles in the plane thereof; a further object being to provide a saw of the class specified having improved means for'accomplishing the above results quickly and easily, and in which different styles of blades may be employed; and with these and other objects in view the invention consists in the construction, combination and arrangement of parts hereinafter described and claimed.

The invention is fully disclosed in the following snecification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are des ignated by suitable reference characters in each of the views, and inwhich:

Figure 1 is a side'vie'w-of a saw handle and part of a saw blade involving my improvement,'part of" the construction being I broken away; Fig. 2 a partial section on the line 2-2 of Fig. 1; and, Fig. 3 a partial section on the line 33 of Fig. 1.

In the drawing forming part of this specification, I have shown at a a handle of a saw of the class specified, and at b the blade thereof. That part of the handle with which the bladev is connected is provided with a slot a 'into which the handle end of the blade is inserted. The blade is provided adjacent to the back edge portion thereof with a curved longitudinal slot 6 and midway between said slot and the opposite or toothed edge portion of the. blade is a straight longitudinal slot 6 and these slots open through the handle end of the blade. The slot 6 is shown partially in full and partially in dotted lines in Fig. 1, and the slot 6 is indicated only in dotted lines in said figure.

Passed forwardly through the slot 6 and the corresponding parts of the handle is a screw 0 having a flat head 0 countersunk in the back of the handle and provided with oppositely arranged pins c adapted to be passed through the back side of the hand and through corresponding holes o in the blade Z), and at the opposite side of the slot 7) the front side portion of the handle is provided with a countersunk circular recess a and a thimble-shaped nut (Z is passed through the front side portion of the handle and screwed onto the screw 0, and said nut is providedwith a circular head (l countersunk in the bottom of the recess a and the outer side portion of the head (2 is provided centrally thereof with a supplemental 7 head (Z which is preferably oblong in form and provided with a central groove or recess (Z whereby the nut cl may be turned by means of an ordinary screw driver, or the claws of an ordinary claw hammer, and the countersinking of the head (1 of the nut d in the countersunk circular recess 0: facilitates this operation of manipulating the nut (Z by means of a claw hammer, as will be readily understood, and mounted on the screw 0 inwardly of its head 0 is a spiral spring 6 which normally serves to force said screwoutwardly or backwardly and to release the pins 0 from the blade 6 when the nut 03 is manipulated so as to allow of such action, and when the pins 0 are released from the blade I), said blade may be adjusted or removed from the handle as hereinafter described. i

A screw 0 similar in all respects to the screw 0 shown in'Figs. 1 and-3, and passed through the slot 6 in the blade and corresponding side portions of the handle, is also passed through the slot 6 in the blade and corresponding side portions of the handle, as shown in Fig. 2, and the nut d is also employed in connection therewith and the front of the handle is provided with the same circular and countersunk recess of, and the blade is also provided on the opposite sides of the slot 6 with the holes 6* to receive the pins 0 on the head of. the screw.

WVith this construction the nuts (Z of both of the screws 0 and said screws and the pins 0 on the heads of said screws may be manipulated in the same manner to release the blade to permit of its detachment from the handle, and by means of this construction the blade may also, as will be understood, be adjusted into different ositions or at different angles as indicate in dotted and full vided with a raised portion or shoulder a through which is passed a screw 7 adapted to bear on the end 6 of the blade b above the slot 72 and this also serves or aids in the adjustment of the blade, and in the operation of manipulating the screws 0 so that the pins 0 thereof will enter the adjusting holes I) in the blade.

My invention is not limited in its use to any particular style of blade, nor to any particular style of handle, eXcept that here in designated, and changes in and modifications of the construction herein described may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its ad vantages.

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

1. In acarpenters saw, a handle provided with a slot in the central plane of the blade end portion thereof, and a blade adapted to be inserted into said slot, said blade being provided with longitudinal slots which open outwardly through the handle end portion thereof one above the other and the top slot being curved, and screws passed through the handle and through said slots and provided with flat heads countersunk in one side of the handle and having oppositely arranged pins adapted to enter holes in the blade, said screws being also provided with thimble-shaped nuts having heads countersunk in the opposite side of the handle.

2. In a carpenters saw, a handle provided with a slot in the central plane of the blade end portion thereof, and a blade adapted to be inserted into said slot, said blade being provided with longitudinal slots which open outwardly through the handle end portion thereof, and one of which is curved, and screws passed through the handle and through said slots and provided with fiat heads countersunk in one side of the handle and having oppositely arranged pins adapted to enter holes in the blade, said screws being also provided with thimble-shaped nuts having heads countersunk in the opposite side of the handle and provided with raised central portions by which they may be manipulated.

3.-In a carpenters saw, a handle provided with a slot in the central plane of the blade end portion thereof, and a blade adapted to be inserted into said slot, said blade being provided with longitudinal slots which open outwardly through the handle end portion thereof, and one of which is curved, and screws passed through the handle and through said slots and provided with flat heads countersunk in one side of the handle and having oppositely arranged pins adapted to enter holes in the blade, said screws being also provided with thimble-shaped nuts having heads counteras my invention I have signed my name in presence of the subscribing witnesses this 3rd day of April 1915.

GEORGE n. YOUNG.

Witnesses:

C. MU'LREANY, H. E. THOMPSON} Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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