US Patent: 2,819,635 - Power Operated, Predetermined Torque Release Tool


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US Patent: 2,819,635

Power Operated, Predetermined Torque Release Tool

Patentees:

Bernard R. Better (exact or similar names) - Chicago, Cook County, IL

John W. Lehde, Jr. (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:

192/56.5, 464/35, 464/37, 81/474

Tool Categories:

metalworking machines : drilling and boring : drilling and boring tool holders

metalworking tools : tap and die holders

Assignees:

Scully-Jones & Co. - Chicago, Cook County, IL

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	May 09, 1955
Granted:	Jan. 14, 1958

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Scully-Jones & Co.

Description:

Claim:

A torque driver for taps or other tools having a deformable elastic metal driving shell formed of a single piece, means for attaching the shell to a means for turning the same, said shell having a tapered bore which is largest at the open end of the shell, a driven member mounted in the shell and having a tapered portion which is complementary to the tapered bore of the driving shell, longitudinal cams on the tapered portions of the driven member, driving rollers mounted between the tapered surfaces of said driving and driven members, which deform the shell when the resistance on the driven member exceeds a predetermined, amount and means for, axially adjusting the driven member with respect to the, driving member to regulate the amount of torque to be delivered to the driven member.