Positive engagement power transmission tool

Details Positive engagement power transmission tool Positive engagement power transmission tool

1993-02-10

1994-06-21

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

811761, 81462, B25B 2308

Patent

active

053219988

ABSTRACT:
A power transmission tool for the installation and removal of a spanner nut (15) on a threaded end of a drive shaft (27) comprises a torque reactor plate (32) with a central threaded aperture (35,37) for threaded engagement with a wrench shaft (39). The pitch of the wrench and reactor plate threads (37,39) is the same as the pitch of the drive shaft and spanner nut threads. The reactor plate (32) is fastened (60,63,65) to a drive flange (20), the flange being mounted on an end of the drive shaft and having splines to prevent relative movement therebetween. An aperture (73) is formed in the torque reactor plate for receiving a bar which is used to react the torque applied to the drive shaft/flange combination by the wrench via the nut, thereby preventing rotation of the flange and shaft combination when torque is applied to the wrench.

REFERENCES:
patent: 2721589 (1955-10-01), Hammer

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