Remote controlled bolt removing apparatus for bolts securing the

Tools – Wrench – screwdriver – or driver therefor – Machine

Patent

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Details

254 29A, B25B 2902

Patent

active

045520380

ABSTRACT:
A remote controlled bolt removing device for bolts securing the head of a reactor pressure vessel is provided which includes a vertically movable rotating device which automatically grips and turns the bolts and at least one hydraulic cylinder for raising and lowering the rotating device. The device is provided with a rotating drive associated with the hydraulic cylinder which imparts a relative rotating movement between the piston and the cylinder during the operating stroke.

REFERENCES:
patent: 2847188 (1958-08-01), Wiltse
patent: 2959156 (1960-11-01), Dreptin
patent: 4120218 (1978-10-01), Togel et al.

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