Tools – Wrench – screwdriver – or driver therefor
Patent
1978-08-28
1980-08-05
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
81 5729, B25B 1700
Patent
active
042155991
ABSTRACT:
A torque multiplier assembly that is portable, compact, and may be easily and conveniently disposed adjacent a nut, bolt or similar threaded elements to removably engage the same. The torque multiplier assembly when so engaged is adapted to exert a first relatively high maximum torque of predetermined value on the nut, bolts or similar elements to initially rotate the same from binding threaded engagement or perform the final tightening of the nut bolt or rotatable element. The torque multiplier assembly is manually actuated by the use of an elongate torque wrench of a type that is commercially available and may be adjusted to supply any one of a number of maximum torque. The desired maximum torque supplied by the elongate torque wrench is relatively low, normally not over fifty foot pounds, and is visually indicated on a calibrated scale that forms a part of the torque wrench. The maximum torque supplied by the torque wrench is transferred to the multiplier assembly, with the torque output of the multiplier assembly being the torque input of the torque wrench multiplied by a factor that is inherent to the specific gear structure of the multiplier assembly.
REFERENCES:
patent: 1860871 (1932-05-01), Pouliot
patent: 2578279 (1951-12-01), Bardwell
patent: 3124022 (1964-03-01), Corson
patent: 3969961 (1976-07-01), Amoroso
Batchelder Clarence F.
Casady Kent B.
Babcock William C.
Jones Jr. James L.
Khartli, Inc.
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