Ratchet type ring spanner

Details Ratchet type ring spanner Ratchet type ring spanner

1996-05-24

1997-06-10

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

B25B 1346

Patent

active

056365578

ABSTRACT:
A ratchet-type ring spanner includes a handle and a head portion which, in turn, includes a circular peripheral wall defining a receiving compartment therein and including a web area which connects with the handle, a cavity being defined in the web area. A ratchet wheel is received in the compartment and includes a plurality of teeth in an outer periphery thereof and a polygonal inner periphery. An arcuate toothed member is mounted in the cavity and includes a plurality of teeth defined on a first side thereof for engaging with the teeth of the ratchet wheel and a second side bearing against a wall defining the cavity. A stop member is mounted in the cavity and includes a first end thereof bearing against the wall defining the cavity. A spring is mounted between the stop member and the toothed member to bias the toothed member away from the stop member.

REFERENCES:
patent: 1459291 (1923-06-01), Hall
patent: 1868840 (1932-07-01), McNaught et al.
patent: 2957377 (1960-10-01), Hare
patent: 3838614 (1974-10-01), O'Donnell

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