Metal working – Method of mechanical manufacture – Repairing
Patent
1980-04-28
1982-09-21
Crosby, Gene
Metal working
Method of mechanical manufacture
Repairing
29252, 29282, 294261, 409279, 409283, B23P 1904
Patent
active
043499520
ABSTRACT:
An apparatus and method for the in situ field conversion of the components of pivotal couplings, particularly as utilized for connecting hydraulic load sensing devices into deadline cable anchoring apparatus, and which have become stuck and inoperative due to corrosion, into a coupling having a substantially non-corrosive pivot pin and associated bearing surfaces. The apparatus embodies a unique arrangement of components in which a yoke structure is selectively attached to one of the couplings of the hydraulic load sensing device of the cable anchoring apparatus, a hydraulic cylinder-piston is connected with the yoke in one operating mode to provide a pushing force for a connected pusher tool for forcibly removing the stuck pivot pin of the coupling, and wherein the cylinder-piston is thereafter reconnected with the yoke in another operative mode to provide a pulling force for a connected broaching tool for broaching the bearing bore surfaces for the pivot pin so as to increase their diameters to a size adapted to receive new bearing liners of a substantially non-corrosive material, and having an inner diameter of a size to receive a new pivot pin of a substantially non-corrosive material.
REFERENCES:
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patent: 4063412 (1977-12-01), Bruzek
patent: 4161810 (1979-07-01), Beard
Decker Elmer L.
Moon James
Crosby Gene
Quadco Alaska, Inc.
Weilein Paul A.
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