Method and apparatus for stressing a tendon and banding a struct

Details Method and apparatus for stressing a tendon and banding a struct Method and apparatus for stressing a tendon and banding a struct

1975-06-06

1977-01-11

Myracle, Jerry W.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B21F 1700

Patent

active

040023044

ABSTRACT:
A method and apparatus are disclosed for circumferentially banding a circumferential wall of a large vessel with a highly tensioned tendon. The carriage is suspended from the top of the structure and constrained into contact with the wall to travel circumferentially about the vertical structural wall. The carriage is propelled forwardly during banding against the large restraining force, e.g., 30,000 lbs. or more, from the tendon which is connected to the wall by a belt drive means on the carriage which is in driving engagement with upper and lower belts looped about the vessel and extending through the carriage. The belt drive means comprises belt drive drums about which the belts travel after being lifted from the structural wall at the forward end of the carriage. The belts are returned to the structural wall at the rear end of the carriage. A regenerative hydraulic system includes hydraulic pumps connected to the tendon tensioning system and provides a hydraulic force assist to the belt drive drums to propel the carriage. Preferably, the belt drive drums comprise a pair of rotatable hydraulic motors with a belt drive rim fastened about their peripheries.

REFERENCES:
patent: 3666189 (1972-05-01), Dykmans
patent: 3822167 (1974-07-01), Piola

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