Plural molds with common actuating means

Details Plural molds with common actuating means Plural molds with common actuating means

1977-04-07

1979-01-16

Husar, Francis S.

Static molds

Container-type molding device

Plural molds having common means to actuate a part of each mold

249100, 249173, 249219R, B28B 706

Patent

active

041345681

ABSTRACT:
A form assembly for making concrete product, as concrete pipes. The form assembly has a pair of upright outer forms comprising cylindrical jackets. The cylindrical jackets are secured to each other with connectors. First latch structures connected to the cylindrical jackets hold the jackets in closed positions. The first latch structures are movable to release positions to expand the jackets to open positions. Pallets are located in the lower ends of the jackets. Second latch structures mounted on the lower ends the jackets are operable to hold the pallets in assembled relation with the jackets. Control linkage operably connected to both the first latch structures and second latch structures is operable to sequentially operate the first and second latch structures to open and close the jackets and release and hold the pallets.

REFERENCES:
patent: 270704 (1883-01-01), Stowell
patent: 1290646 (1919-01-01), Novy
patent: 1336867 (1920-04-01), Sloan
patent: 2306450 (1942-12-01), Lewis
patent: 2684517 (1954-07-01), Woods
patent: 2926411 (1960-03-01), Steiro
patent: 3611516 (1971-10-01), O'Connor et al.

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