Intermediate anchor for centrifugal concrete mold for producing

Details Intermediate anchor for centrifugal concrete mold for producing Intermediate anchor for centrifugal concrete mold for producing

1990-07-27

1991-10-08

Housel, James C.

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...

52223L, 52699, 249 91, 249184, 264228, B28B 2160, B28B 2308

Patent

active

050550217

ABSTRACT:
The intermediate anchor includes an abutment body for an end of an anchoring element mounted on an end of a pretensioning element, the abutment body is supportable on an inner side of a wall of the centrifugal concrete mold and mountable on the inner wall. At least one anchor bolt extendable through the wall of the centrifugal concrete mold in a sealed manner mounts the abutment body. The abutment body has a conical recess extending transversely to the anchor bolt for receiving the anchoring element of the pretensioning element. A wedge-shaped projecting piece is releasably mounted on the abutment body and engages the tensioning element in a fork-shaped manner near the anchoring element. The projecting piece is releasable after removal of the pretensioned concrete body from the centrifugal concrete mold and before removal of the abutment body from the concrete body so as to release a portion of the pretensioning element near the anchoring element for separating by a separating device.

REFERENCES:
patent: 2080074 (1937-05-01), Freyssinet et al.
patent: 2950517 (1960-08-01), Brickman
patent: 3738786 (1973-06-01), Van Buren

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