US579359A

US579359A - dinsmore

Info

Publication number: US579359A
Authority: US
Publication date: 1897-03-23
Anticipated expiration: 1914-03-23

Description

' (No Model.)

0. O. DINSMORE.

K 0 0 H E E D D A L Patented Mar. Z3, 1897.

i @Mei/fori the following is a specification.

Nirn farne ORIN O. DINSMORE, OF LEVISTON, MAINE.

LADDER-HOOK.

SPECIFICATION forming part of Letters Patent No. 579,359, dated March 23, 189'?.

Application filed March 31, 1896. Serial No. 585,562. (No model.)

To all whom, it may concern:

Be it known that I, ORIN O. DINSMORE, a citizen of the United States, residing at Lewiston, in the county of Androscoggin and State of Maine, have invented certain new and useful Improvements in Ladder-Hooks, of which My invention relates to a new and useful improvement in ladder-hooks, and has for its object to provide a device of this description which may be attached to the end rung of a ladder so as to adapt such a ladder for use by carpenters, painters, and plasterers to enable them to gain access to dii-ferent parts of the building by attaching the ladder, by means of the hooks, to the eaves or other protruding portions of the building.

With these ends in view my invention consists in the details of construction and combination of elements hereinafter set forth, and then specifically designated by the claim.

In order that those skilled in the art to which this invention appertains may understand how to make and use the saine, I will describe its construction and operation in detail, referring by letter to the accompanying drawings, forming a part of this specification, and in which- Figure l is a sectionof a ladder having my improvement applied thereto, and Fig. 2 a rear view of a clamp.

In the drawings, A represents the primary hook, adapted to engage with any suitable projection of the building, and with this hook is formed a secondary hook or clamp B and also the threaded shank C.

D is a twin hook adapted to engage one of the rungs of the ladder, and to this hook is swiveled a turnbuckle E at G, and formed with this turnbuckle is the usual nut F, through which runs the threaded shank C. By this arrangement it will be seen that the hook is readily clamped to a ladder by engagement of the hooks B and D with two rungs thereof and drawing these hooks toward each other by the proper manipulation of the turnbuckle E, which will be readily understood.

In practice I prefer to use two of these hooks to a ladder in order that the latter may be balanced and steadied when placed in connection with a projection of the building.

The advantages of my improvement are the cheapness of its construction, the efiiciency of its operation, and the readiness with which it may be attached to or detached from the ladder so as to facilitate the transportation thereof.

Having thus fully described my invention, what I claim as new and useful is- VIn combination with a ladder, a hook composed of a member A, a clamp-hook B proj ecting therefrom, a shank C formed with the first-named member and having its lower portion threaded, a turnbuckle E, a nut F formed with said turnbuckle adapted to receive the threaded shank, and a twin hook D to which said buckle is swiveled, substantially as and for the purpose set forth.

In testimony whereof I have hereunto afiiXed my signature in the presence of two subscribing witnesses.

ORIN O. DINSMORE.

Witnesses:

S. S. WILLIAMSON, R. M. PIERCE.