Process and apparatus for continuously prestressing concrete pro

Details Process and apparatus for continuously prestressing concrete pro Process and apparatus for continuously prestressing concrete pro

1979-04-05

1980-12-23

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to apply stress to preform and uniting in stressed...

B28B 2304

Patent

active

042407761

ABSTRACT:
An apparatus for prestressing reinforcing tendons in concrete products comprising means for supplying continuous tendons over an elongated mould bed. Primary anchoring means grip and stress the tendons while permitting placement of one of a series of moulds. Secondary anchoring means are fixed to means for advancing the moulds along the bed to permit transferring of the grip on the tendons between the primary and secondary anchoring means or vice versa to maintain the prestressing force.

REFERENCES:
patent: 2607099 (1952-08-01), Schroder
patent: 2745164 (1956-05-01), Ros
patent: 3903222 (1975-09-01), Brown

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