Device for turning a nut means on a screw bolt

Details Device for turning a nut means on a screw bolt Device for turning a nut means on a screw bolt

1978-02-16

1980-06-17

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81125, B25B 2100

Patent

active

042077842

ABSTRACT:
An improved device for turning a nut means on a screw bolt arranged on a bolthole circle wherein the device includes: a support ring having recesses for receiving the bolt and the nut means; a turning unit fastened to the ring for imparting rotary motion to the nut means; and a transport safety means for engaging and retaining the nut means when it reaches its unscrewed end position. In accordance with the invention, the improvement comprises employing a nut means having a threaded portion for engaging the transport safety means and including in the latter means a member attached to the support ring and in surrounding relationship to the bolt, the latter member having a counterthread and being positioned so that the threaded portion of the nut means is engaged by the counterthread before the nut means reaches its end position.

REFERENCES:
patent: 2632351 (1953-03-01), Hannah
patent: 2978937 (1961-04-01), Reynolds et al.
patent: 3789706 (1974-02-01), Smith

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