Exterior form spreader system for threaded end concrete ties

Details Exterior form spreader system for threaded end concrete ties Exterior form spreader system for threaded end concrete ties

1975-11-06

1977-10-04

Husar, Francis S.

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

85 32W, 85 32K, F04E 1106, F04E 1706, F16B 3700

Patent

active

040520323

ABSTRACT:
An externally controlled spreader system is designed for the adjustment of forms in both lateral directions, and is capable of being remotely activated as the forming operations require. This system is advantageously built into existing tie holding devices and includes a nut having a continuous circular notch on its exterior surface with an elongated member having a slotted hole adapted to be slideably connected to a conventional plate-washer. The slotted hole on the slideable member is modified in shape to engage or disengage the continuous notch on the nut, respectively, and consequently conform it to the position of the slideable member, without restricting its rotation. During threading, the nut exerts a force on the plate-washer assembly, which is adequately connected to the forms, and thus moves the forms laterally in the desired direction, while maintaining them constantly at any predetermined distance apart through the rigid tie rod.

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patent: 3292893 (1966-12-01), Williams
patent: 3822860 (1974-07-01), Lovisa
patent: 3880397 (1975-04-01), Becker

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