US1113118A - Hacksaw-frame. - Google Patents

Description

W. J. HARVEY.

HAGKSAW FRAME.

AIPLIOATION FILED JUNE 13, 1014.

1 ,1 1 3, 1 18. Patented 001:. 6, 1914.

THE NORRIS PETERS CO" PHO10-LITHO.. WASHINGTON. D. C.

. UNITED STA'I ATENT FFIGE- WILLIAM J. HARVEY, or FLINT, MICHIGAN.

HACKSAW-FRAME.

position without the use of screws, clamps or i the like.

Another feature of the invention is the absence of any projectinmparts which may be struck by the work w en the saw is in use i and thereby causing the frame to become corners and to have a straight unfastened.

The invention consists in the matters hereinafter set forth and a more particularly pointed out in the appended claims.

In the drawings, Figures 1 and 2 are ;views of a saw frame that embodies features of the invention; Fig. 3 is a View in detail of one of the end frame members; Fig. 4: is a view in section takenon the line IV+ IV of Fig. 1; and Fig. 5 is ;a sectional view taken on the line V-V of Fig. 1.

Referring to the drawings, a main tubular member 1 has a longitudinal slot indicated.

at 2 extending from end to end thereof. A pair of locking rings 3 are adapted to be mounted each on an end portion of the member 1, each having a downturned ear 4 that enters a notch 5 onone side of the groove and a corresponding outstanding lug 23 adapted to span the groove 2 when the rlng is turned so that the ear Al is at the bottom of its engaging notch. These rings are preferably burred or chased to give good hand hold.

A pair of frame members 6 which may be tubular or solid are bent to form rounded that telescopes readily with the mlddle section 1, a spline 8 on eachmember not only stiffening it but also entering the longitudinal slot 2 of the central member. A notch 9 near the inner end of each spline may be engaged by a split stop rin '10 thereby pre venting thewithdrawal of the end member from the central member. Notches 11 at desired intervals in the spline are adapted to be engaged by the lugs 23 of the securing sp ecifieation of LettersPatent.

3 Application filed June 13, 1914. Serial No. 844,859.

ortion 7 I llatenteclOct. A

ring whereby the end members i may be locked at the desired interval apart in the main member. A T-fitting is secured on the outer end of each end member and is adapted toreceive posts 12 and 13= )The inner end portion of one of these is cut away and is provided with a stud 14 over the end of which a saw blade may be hooked. A cross pin 15 at the other end engages with notches 16 to lockthe posts in desired angular relationto theframe. The other post 13 islikewise halved and provided. with a saw stud 17 while its outerend is screwthreadecl for the reception of a handle 18. A washer 191 with an inwardly projecting tongue 20 that engages a key-way in a screwthreaded portion has a projection 21 adapted to. engage any one of a series of notches 22 in acom panion T-fitting and thereby clamp the posts in the desire angular relation to the frame.

As a result of this construction the frame may be quickly adjusted to fit any one of the standard length of saw blades and when:

so disposed is rigid and cannot :collapse. The disposition ofthe locking members is such that they are not displaced by accidental contact with work and there are no bolts or clamping screws tosetnup and to work loose.

Obviously, changes in the details of construction may be made without departing, from the spirit of my invention and I do not care to limit myself to any particular form or arrangement of parts.

What I claim is j 1. A hacksaw frame comprising a main tubular member having a longitudinal slot therein, a pair of frame members in telescopic engagement with the main member, a spline on each frame member pro ecting.

through the slot of the main member and havlng notches therein, a pair of locking rings .mounted on the main member: and adapted to be turned into engagement each.

with a notch of a spline, and means on the outer ends of the frame members for securing the hacksaw.

2. A .hacksaw frame comprising amain tubular member having. a longitudinal slot from end to end thereof with notches in the margins ofthe slot adjacent the ends, a pair of split locking rings rotatable on the tubular member each provided with a depending ear adapted to engage a notch of the slot and with an extending lug adapted to span:

the slot, a pair of framemembers bent. be-

lar member each provided with a depending ear adapted to engage a notch of the slot and with an extending lug adapted to span the slot, a pair of frame members bent between their ends each in telescopic engagement with the tubular member, a spline on each frame member extending through the longitudinal slot and provided with notches adapted to be engaged by a lug of a locking ring, a pair of split stop rings adapted to embrace the tubular member and extend through a notch of a spline of a frame memher, and means on the ends of the frame members for detachably securing a hacksaw blade thereto.

In testimony whereof I affix my signature in presence of two wi nesses.

WILLIAM J. HARVEY.

Vitnesses:

G. E. MGGRANN, KARL H. BUTLER.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of .Patents,

Washington, D. C.

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