Tool to place a tensioning roller-chain around a flange, and ass

Details Tool to place a tensioning roller-chain around a flange, and ass Tool to place a tensioning roller-chain around a flange, and ass

1987-04-16

1988-09-20

Watson, Robert C.

Metal working

Means to assemble or disassemble

Coupling to conduit

B23P 1904

Patent

active

047715278

ABSTRACT:
A tool, mainly for placing by remote-control a tensioning roller chain or a like tightening element around a flange, in particular in nuclear works, and thereupon to carry out tightening, the ends of the tensioning roller chain being connected by a tensioning system including a tightening bolt, characterized by gripper members to seize the ends of the tensioning roller chain and by gripper arms on which the gripper members are mounted and of which at least one arm is kinematically displaceable by a displacement system in such a manner that the ends of the tensioning roller chain can be guided around the flange and toward each other, and by a coupling at one of the gripper arms for detachably engaging the tightening bolt so that a tensioning motor may drive the coupling and thereby tighten the roller chain about the flange and so that the gripper arms may thereupon disengage from the coupling and the roller chain remain tightened about the flange.

REFERENCES:
patent: 788161 (1905-04-01), Marceau
patent: 1818435 (1931-08-01), Smith et al.
patent: 2247642 (1941-07-01), Neville
patent: 2918724 (1959-12-01), Thurman
patent: 3292922 (1966-12-01), Nastev
patent: 4011979 (1977-03-01), Hagen et al.
Ein Neves Schnellverbindungs-System, Vacuum, vol. 25, No. 3, (Sep. 1974).

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