B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/45
B28B 23/04 (2006.01)
Patent
CA 1167240
ABSTRACT OF THE DISCLOSURE Equipment for the production of pre-stressed concrete beams or railway sleepers includes two, spaced, reinforce- ment-tensioning, abutment assemblies with a casting bed lying between the assemblies. Mobile moulds can be moved into and out of the casting bed through one or the abutment assemblies and the latter includes a plurality of displaceable arms carrying reinforcement clamping means. each arm is displaceable to allow passage of the moulds when the latter are filled with at least partially cured pre-stressed concrete articles. A mould train can be removed as a whole with cured articles therein and indivi- dual articles formed by severing the tensioning rein- iorcing bars or wires and the finished articles subse- quently demoulded at a site remote from the casting bed.
380609
Bereskin & Parr
Dow Mac Concrete Limited
LandOfFree
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