Plastic article or earthenware shaping or treating: apparatus – With factory structure feature
Patent
1977-03-22
1978-08-08
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
With factory structure feature
425111, 425125, 425347, 425420, 425421, 425454, B28B 304
Patent
active
041053826
ABSTRACT:
An apparatus for continuously producing finished prestressed concrete wires along a prestressing bed with a plurality of prestressing members which extend along the prestressing bed and which are arranged to pass through the concrete members when formed. The apparatus includes a scaffold which spans the prestressing bed in a gantry-like fashion and is supported for movement in a direction parallel to the bed. The scaffold extends over at least two adjacent stations along the prestressing bed for producing the finished prestressed concrete members. A number of vertically movable lower form members are carried on the scaffold for movement to a lowered position on the prestressing bed for receiving fresh concrete to form the concrete members. After the concrete members are formed and bonded the lower form member may be raised away from the finished concrete member. Upper form members corresponding in number to the lower form members are also carried on the scaffold for vertical movement into and out of the concrete member forming position. The upper form members are also horizontally movable longitudinally along the scaffold.
REFERENCES:
patent: 3732052 (1973-05-01), Gunia
patent: 3756762 (1973-09-01), Maugweiler
patent: 3897186 (1975-07-01), Farfor
patent: 3998573 (1976-12-01), Gilbert et al.
patent: 4028036 (1977-06-01), Farfor
Auer Peter
Kluge Fritz
Lieske Helmut
Wutzler Horst
Dyckerhoff & Widmann Aktiengesellschaft
Husar Francis S.
McQuade John
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