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U.S. Department of Energy
Office of Scientific and Technical Information

Cable reeving system

Patent ·
OSTI ID:5212657
In an apparatus for longitudinal translation of an arm having end-to-end articulated forward and rearward portions between an extended position where the arm portions are aligned on a straight track and a retracted position where the rearward arm portion is angled on a curved track out of alignment with the forward arm portion, the arm and tracks being adapted to be submerged beneath the surface of a pool, a cable reeving system is described comprising (a) fixed axis sheaves (b) movable-axis sheaves (c) two pick-up rollers on the rearward end of the forward arm portion; (d) a driven which drum above the fixed-axis sheaves and adapted to be above the pool surface; (e) extending and retracting anchor devices above the fixed-axis sheaves and adapted to be above the pool surface; (f) an extending cable yielding attached at one end to the extending anchor device and running downwardly over one rearward fixed-axis sheave, (g) a retracting cable also attached to the winch drum and wound around it in a direction opposite that of the extending cable and then extending downwardly over another of the rearward fixed-axis sheaves.
Assignee:
Nuclear Energy Services, Inc., Danbury, CT
Patent Number(s):
US 4725398
OSTI ID:
5212657
Country of Publication:
United States
Language:
English