Ply joint bar

Details Ply joint bar Ply joint bar

1975-02-26

1976-11-30

Faw, Jr., Price C.

Static molds

Miscellaneous mold adjuncts

249193, 52100, 52461, G01J 132

Patent

active

039944719

ABSTRACT:
A ply joint bar for casting a seamless ceiling from a hardening material such as plaster or concrete, poured over the surfaces of adjacent molding panels, has a bridge with a lower surface resting on and flush with two such adjacent panels and an upper gable-like portion adapted to be anchored in the hardened casting material, an optional base member with two adjacent coplanar surfaces which grasp the underside of the panels, and a leg frangibly connected at one of its ends to the bridge and permanently connected at its other end to the base member, so as to separate adjacent panels sandwiched between the bridge and base member. After the casting material hardens, the molding panels are removed and the frangible leg separated from the bridge leaving a substantially seamless ceiling surface with the bridge embedded therein and its lower surface flush therewith.

REFERENCES:
patent: 840804 (1907-01-01), Prescott
patent: 3099110 (1963-07-01), Spaight
patent: 3352217 (1967-11-01), Peters
patent: 3411260 (1968-11-01), Dill
patent: 3434401 (1969-03-01), Kiewit
patent: 3512318 (1970-05-01), Turner
patent: 3575094 (1971-04-01), Hewitt
patent: 3667177 (1972-06-01), Biela
patent: 3813180 (1972-11-01), O'Brill
patent: 3822858 (1974-07-01), Franklin
patent: 3871787 (1975-03-01), Stegmeier

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