Roller chain-connecting tool

Implements or apparatus for applying pushing or pulling force – Portable implements or apparatus for tensioning flexible... – Including screw drive

Patent

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Details

24 68CT, 254234, B66F 308

Patent

active

043678629

ABSTRACT:
A roller chain-connecting tool comprises a narrow elongated body containing a lengthwise-extending threaded rod journaled in and extending through both ends of the body to hexagonal bolt heads for rotating the rod. A chain hook is mounted on the threaded rod by means of an internally threaded block which moves lengthwise along the tool's body when the rod is turned. In one embodiment, a second chain hook is mounted on one end of the body and the rod is threaded in only one direction. In another embodiment, the second chain hook is mounted on another internally-threaded block and the threaded rod has approximately one half threaded in each direction from its center. The chain hooks or jaws are gently curved toward one another and are tapered so as to fit both small and large gauge roller chains, the large chains being at least twice the size of the small chains. The sides of the body are spaced laterally apart from the threaded rod and from the sides of the internally-threaded block or blocks so that one or both hooks can rotate through a small angular range for easy manipulation of the tool in awkward locations.

REFERENCES:
patent: 752074 (1904-02-01), Jackson
patent: 762060 (1904-06-01), Huhn
patent: 1505549 (1924-08-01), Faerch
patent: 1994270 (1935-03-01), Cetrano
patent: 2382447 (1945-08-01), Schaeufele
patent: 2950899 (1960-08-01), Wilson
patent: 3648973 (1972-03-01), Farrell
patent: 4157171 (1979-06-01), Hasselas

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