Take-up actuator

Details Take-up actuator Take-up actuator

1974-12-16

1976-08-03

Smith, Al Lawrence

Implements or apparatus for applying pushing or pulling force

Pipe or rod jack

Tie rod tensioner

F21B 1900

Patent

active

039725081

ABSTRACT:
This traction actuator is of the take-up type for prestressing concrete. In order to exert tractive effort on a greater number of wire-rope strands, a fixed retaining block and a movable traction block acting on the wire-rope have longitudinal bores formed therein, each bore receiving four or five strands being disposed on a common circumference of the blocks and being each provided on its end faces with bearing plates acting as movable abutment members to keys clamping said strands.

REFERENCES:
patent: 3647184 (1972-03-01), Vanderhurst
patent: 3653634 (1972-04-01), Bechi
patent: 3658296 (1972-04-01), Yegge
patent: 3795949 (1974-03-01), Shorter
patent: 3811652 (1974-05-01), Valenzuela

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