Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1975-06-19
1976-03-02
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 581, B25B 1346
Patent
active
039410170
ABSTRACT:
A plier-type ratchet wrench of simple, economical and robust construction employs a single rigid thrust rod or bar to operate the ratchet drive and a single extensible helical spring which both biases the operating handle to its normal position and keeps the thrust rod and a pawl engaged with the ratchet.
REFERENCES:
patent: 1398180 (1921-11-01), Dietrich
patent: 3270595 (1966-09-01), Hall et al.
patent: 3616714 (1971-11-01), Gregory
Lenker Paul E.
Voss Raymond G.
Davenport Tool Co.
Jones Jr. James L.
Nemmers James C.
Simmons Haven E.
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