B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/45
B28B 1/14 (2006.01) B28B 21/60 (2006.01) B28B 23/06 (2006.01)
Patent
CA 1059296
ABSTRACT OF THE DISCLOSURE An apparatus for continuously producing finished prestressed con- crete members 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 is provided with at least two adjacent stations 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 members are formed and bonded the lower form member may be raised away from the finished 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. Thus with this apparatus fewer forms are necessary in a mechanized production of concrete members.
275277
Auer Peter
Kluge Fritz
Lieske Helmut
Wutzler Horst
LandOfFree
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