Compensating torque wrench

Details Compensating torque wrench Compensating torque wrench

1983-06-01

1984-12-18

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

81 55, B25B 23142

Patent

active

044884427

ABSTRACT:
A compensating torque wrench device used for tightening an internally threaded member (e.g., a nut) to an externally threaded member (e.g., a bolt). The internally threaded member is of conventional construction while the externally threaded member includes a free end having a recess. The device includes a working end having first engagement means which engages the internally threaded member and second engagement means comprising a rotatable projection for engaging the recess of the externally threaded member. The device also includes first and second rotational means and a driven end (e.g., a handle), such that the driven end is connected to the first engagement means by the first rotational means and to the second engagement means by the second rotational means. When force is applied to the handle, the first rotational means exerts a first torque on the first engagement means causing it to rotate in the first rotational direction and causes the second rotational means to exert a second torque on the second engagement means, causing it to rotate in the opposite rotational direction. The device also includes torque measuring means which indicates the amount of torque being applied to the nut and bolt, respectively.

REFERENCES:
patent: 2599489 (1952-06-01), Schmidt
patent: 2736220 (1956-02-01), Kamuk
patent: 3175433 (1965-03-01), Akers, Jr.
patent: 3394623 (1968-07-01), Kinakin
patent: 4165660 (1979-08-01), Behrens

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