Tools – Bit stock having manual drive means – Having u-shaped crank arm
Patent
1988-03-24
1990-03-20
Schmidt, Frederick R.
Tools
Bit stock having manual drive means
Having u-shaped crank arm
B25B 902
Patent
active
049091042
ABSTRACT:
A crank operated torque tool has a tool holder shaft with an offset central portion and two straight, aligned, end members forming a crank. One end of the tool is preferably formed to receive and temporarily secure a torque tool. The other end has one end of an elongate, cylindrical, handle piece rotatably attached thereto, the other end of the handle piece being adapted to removably and rotatably receive a disc-shaped, thrust piece.
REFERENCES:
patent: 796201 (1905-08-01), Frampton
patent: 1537657 (1925-05-01), Burch
patent: 1748246 (1930-02-01), Russell
Butanowitz Horst
Mehlau Hans-Joachim
Cruz Lawrence
Eduard Wille GmbH & Co.
Mallinckrodt Philip A.
Mallinckrodt Robert R.
Schmidt Frederick R.
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