US142618A

US142618A - Improvement in levers for drawing framed timber together

Info

Publication number: US142618A
Authority: US
Publication date: 1873-09-09
Anticipated expiration: 1890-09-09

Description

l. N. EAMES.

Levers for Drawig Framed Timber Together. `N0 142 618, Patented September9,1873.

JOHN N. EAMES, OF WILMINGTON, ASSIGNOR TO HIMSELF, JOHN WARS- vWORTH, OF'NEWTON, AND LUOIUS TURNER, OF READING, MASS.

IMPROVEMENT IN LEVERS FOR DRAWING FRAMED TIMBER TOGE'I'HER.

Specification forming part of Letters Patent No. 142,618, dated September 9, 1873; application liled March 25, 1873;

- To all whom it may concern:

a transverse section of a portion of the same 5 and Fig. 3, a top view of the claw-bar.

The present invention relates -tov certain new and useful improvements in levers for bringing together timbers, or bringing snugly home the tenons in mortises, in the raising or framing of buildings; for drawing together the planking of ships sides, or the boarding of buildings; for turning over or otherwise handling logs, timbers,d&c.; for withdrawing spikes, 85o., and for other like above-mentioned purposesthe principal object of these improvements being to provide a simple and effective implement by the operation of which a great saving of time and labor is secured.

My invention consists, mainly, in a lever arranged and operated, as will be hereinafter more fully explained, so as to claw or hold in a timber or board, &c., and to allow of the adjustment at any desired angle or leverage of an adjustable reversible arm formed at one end with a clamp thatis inserted in the other timber, 8vo., the power applied to the upper end of the lever serving to draw the timbersor boards, 85e., together, a greater or less leverage being given to the lever without removing the hooks from the timbers, &c., by means of a yoke connected with the adjustable hooked arm, and which receives and allows the longitudinal play of one end of the lever, and engages with a ratchet-plate connected with the lowerend ofthe lever.

In the drawings, a represents a lever-arm orbar, provided on the top of the lower end with a ratchet-plate, b, and on the bottom with a plate, c, formed at its outer termination with a claw-hook, c', bifurcated and beveled, or otherwise suitably formed, at the end to form teeth orprongs c, to admit of its being readily driven in a timber, Ste., and to clasp a spike, Ste. Surrounding thelower end of the lever-arm a, so as to be readily4 moved forward and back over, or bev removed from,.it

is a yoke, d, the top of which engages between the teeth of the ratchet-plate b, and the boty tom of which is formed with a socket-head, e, that receives and allows the turning of one end of an arm or bar, f, which is formed with screw-threads that receive a screw-nut, g, the other end of the arm or bar f being formed with a clamp-hook, h.

The operation of my invention is as follows: When it is desirable to draw the ends of two timbers together, or bring a tenon snugly home in its mortise, 815e., the claw-hook c is inserted in one timber or plank, &e., and the clamp-hook h in the other, and the top of the yoke d is adjusted between the desired teeth of the ratchet-plate b. Power is then brought to bear upon the upper part of the lever-arm a, so as to bring the two timbers, &c.,together, the leverage of the lever-arm a being raised without disturbing the hooks o and h by means of the free play allowed it within 'the yoke, whose top is thus permitted to be carried forward or backward over the ratchet-plate and inserted between the desired teeth.

By arranging the arm f to turn in the sockethead e its hooked end is easily reversed, so as to be attached to the sides or any desired part of the timber, 85o.

By reversing the hooked end of the leverarm a, so that the prongs c shall extend upward and bear against a spike, the latter may be withdrawn from the timber in which it is driven by applying power to the upper end of the lever-arm a.

Having thus fully described my improvements, what I claim as my invention, and desire to have secured to me by Letters Patent,

A lever for drawing timbers, &c., together, provided with a ratchet-plate, b, and clawhook c, in combination with a yoke, d, and an adjustable reversible clamp-hook, h, all arranged and operating as described, and for the purposes specied.

In testimony whereof I- have signed my name to this specification in the presence ot' two subscribing witnesses.

` JOHN N. EAMES.

Vitnesses CARROLL D. WRIGHT, SAML. M. BARTON.