Plastic article or earthenware shaping or treating: apparatus – Building forms or construction engineering type mold with...
Patent
1977-01-28
1977-12-20
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Building forms or construction engineering type mold with...
425 20, B28B 704, E04G 1122
Patent
active
040638570
ABSTRACT:
This disclosure relates to an apparatus for erecting structures from flowable and settable material and includes a lifting unit having an open ended shell supported by a carrier pivotally attached to a medial portion of an arm disposed generally radially to the structure which is to be formed, a first pair of relatively telescopically movable inner and outer members connected to an outboard end of the arm in generally tangential relationship to the structure, first means for moving the inner and outer members telescopically relative to each other, and second means for moving the inner and outer members along the arm in a synchronous manner to that of the relative telescopic motion.
REFERENCES:
patent: 1122982 (1914-12-01), Mumford
patent: 1761055 (1930-06-01), Selway
patent: 1995692 (1935-03-01), Urschel
patent: 2788560 (1957-04-01), De Boisblanc
patent: 3252199 (1966-05-01), Bossner
patent: 3453707 (1969-07-01), Johansson
patent: 3497579 (1970-02-01), Barron
patent: 3521336 (1970-07-01), Rohlf
patent: 3663132 (1972-05-01), Andersson
Ahl Bernard
Flint, Jr. J. Howard
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