Remotely-manipulated apparatus for performing maintenance work i

Details Remotely-manipulated apparatus for performing maintenance work i Remotely-manipulated apparatus for performing maintenance work i

1984-09-20

1986-08-05

Smith, James G.

Tools

Including tool driving by impact delivering component or...

81125, B25B 1900

Patent

active

046036083

ABSTRACT:
The invention is directed to an apparatus for remote-controlled connection nd disconnection of threaded bolts in a flange joint located in a radioactively-ladened cell. The apparatus includes a remotely controllable impact wrench carrying an extension shaft which is driven by the output shaft of the wrench. As a means of pulling the threaded bolts out of the through bores passing through the rear flange when a flange joint is being disconnected, a magnetic coil is arranged around the extension shaft. A voltage is applied to the coil thereby developing a magnetic force for holding the threaded bolts in the socket thereby permitting the threaded bolts to be moved away from the flange with the impact wrench.

REFERENCES:
patent: 3392767 (1968-07-01), Stillwagon, Jr.
patent: 3916939 (1975-11-01), Gillaro
patent: 4098088 (1978-07-01), Mason
patent: 4271730 (1981-06-01), Holl et al.

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