US98259A

US98259A - Improved graffling-hook

Info

Publication number: US98259A
Authority: US
Publication date: 1869-12-28
Anticipated expiration: 1886-12-28

Description

ELAM HARTR, kOF DOWAGIAC, MICHIGAN.

Letters Patent N 98,259, dated December 28, 1869.

MODA- IMPROVED GRAPPLrNG-Hoox.

The Schedule refenfed to in these Letters Patent and making part of the same. v

To all whom it may concern:

Be it known that I, ELAM HARTER, of Dowagiac, in the county of Cass', and State ofMichigan, have i11- vented a new and improved combined Grappling-Hook and Hoisting-Pulley and Ido hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, niaking a part of i this specification, in which- Figure 1 is a side view, with one of the plates removed, and

Figure 2 ls a detached section.

The nature of my invention consists in soarranging a combined grapplingdlook and hoisting-pulley, that it may be easily attached tothe upper timbers of a barn or other buildings, for the purpose of elevating hay, or other substances, and may be as easily de.- tached, when desired. I

To enable others skilled inthe art to make and use my invention, I will proceed to describe its construction and operation.

In the accompanying drawings- A Arepresent the grappling-hooks, which are halved and vpivoted together at B.

The ends of said y'pivot project at each side, and workin the slots ve c.

The shanks E E are also slotted,'to receive the pins a a. v

The two plates D D, with the pivot B and pins (t a., form a yoke, to which is pivoted, by means of the v bolt' F, the swivel-attachment G, carrying the hoisting-pulley H. One of the plates D D is provided with a ring,'as

seen at fi, for the purpose of attaching a pole, as 'seenatj, in iig. 2.

The object of this pole is to enable -the operator (if I the pole be sufliciently long) to reach any desired point, to attach the hooks, without the use of a ladder.

It will be seen that if the hooks A A are held in a vertical position, with their point-s upward, they will fall apart ofv their own gravity, allowing the yoke t-o slide up on the shanks E E, guided by the pivot B, but when either of' the hooks A A 'engages with the timber, to which the device is to be attached, sufficiently to suspend. its weight, the pole may'be lWithdrawn, when the gravity of the yoke and; attachment will canse the hooks to grapple with a force proporf tionate to the load suspended, caused by the oblique position of the slots in the shanks E E,- as they relate to the line of motion given to the yoke.- It will also beseen that the hooks 4can be as easily taken down, when desired, by replacing the pole in the ring c', and sliding 'the yoke up, as at first described.

Having thus fully described my invention, Wha-t I 'claim as new, and desire to secure b v Letters Patent, is

The swivel G, pulley H, and yoke D, carrying theV ring I, with the hooks A A, having the slots E E, all constructed, combined, and arranged, as herein shown and specified: p l ELAM BARTER. Witnesses:

C. '.l. LEE, M. FINNICUM.