US Patent: 2,074,079 - Torque Measuring Wrench


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US Patent: 2,074,079

Torque Measuring Wrench

Patentees:

Conrad Charles Bahr (exact or similar names) - New York, NY

George H. Pfefferie (exact or similar names) - Bradford, McKean County, PA

USPTO Classifications:

73/862.23, 73/862.26, 81/477, 81/62

Tool Categories:

wrenches : torque wrenches

Assignees:

S. R. Dresser Mfg. Co. - Bradford, McKean County, PA

Manufacturer:

Bonney Forge & Tools Works - Allentown, PA

Witnesses:

none listed

Patent Dates:
Applied:	Jun. 12, 1935
Granted:	Mar. 16, 1937

Patent Pictures:

Conrad C. Bahr & George H. Pfefferie patent March 16, 1937

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Description:

The selector and internal tripping lever work to shift the primary selector to "neutral" when the chosen differential between the primary and secondary levers is reached.

The specifications discuss the wrench's operation in context of high pressure pipeline joint couplings.

The patent number appears on the BONNEY No. 66 Torque Wrench.