B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/24
B28B 3/22 (2006.01) B28B 1/08 (2006.01)
Patent
CA 1105244
Putti 2 MACHINE FOR EXTRUDING HOLLOW CORED CONCRETE SECTIONS ABSTRACT OF THE DISCLOSURE A machine for extruding hollow cored concrete sections, wherein concrete forced into a travelling mold by augers and trailing mandrels form a cored con- crete slab, wherein the mold is provided with a vibrating top plate assembly having forward and trailing sections, the forward section having a greater amplitude of vibration than the trailing section so as to minimize amplitude to vibration transferred to the concrete in the afterpart of the mold.
326273
Carver & Company
Putti George
LandOfFree
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