Static molds – In situ construction engineering type or building type-mold... – Forming building structure
Patent
1975-09-11
1977-12-13
Spicer, Jr., Robert L.
Static molds
In situ construction engineering type or building type-mold...
Forming building structure
249 33, 249210, 425 65, E04G 1106
Patent
active
040625133
ABSTRACT:
Apparatus for vertically adjusting forms used for constructing concrete walls poured in several horizontal segments comprises a jack and means for supporting the jack from a pair of adjacent she-bolts previously installed near the top of a previously poured wall segment. The supporting means includes a pair of hangers adapted for hanging from the she-bolts and a support member connected between lower portions of the hangers. For horizontal adjustment the jack is preferably mounted on a plate which is slidable along the support member and which may be clampable thereto. Lower portions of the concrete forms are modified by installation of headers and bearing plates to receive the jacking forces. In the preferred embodiment the jack supporting member is about as long as the spacing between adjacent she-bolts, or about two feet long. In a first variation the support member is constructed to be shorter, the hangers being inclined rather than vertical, and the jack being fixed to the support member. In other variations the jack is supported from a single she-bolt. In the first two of these variations the extendable portion of the jack is fitted with a stalled extension through which the she-bolt passes. Tubular elements receive and guide the extensions. In a first of these variations, the tubular element is fixed to a hanger by which the apparatus is hung. In a second of these variations, the apparatus is hung by apertures in the tubular element. In the third of these variations a long support member is centrally fixed to a formed hanger and a jack is mounted on the support member on each side of the hanger.
REFERENCES:
patent: 2719347 (1955-10-01), Brekke
patent: 3044573 (1962-07-01), Jackson
patent: 3222750 (1965-12-01), Kimball
patent: 3472477 (1969-10-01), Juhl
patent: 3628223 (1971-12-01), Babee
patent: 3779678 (1973-12-01), Scheller
Appel Gary
McQuade John
Spicer, Jr. Robert L.
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