B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/117
B28B 23/00 (2006.01) B28B 1/24 (2006.01) B28B 11/04 (2006.01) B29C 44/18 (2006.01) E04C 1/41 (2006.01)
Patent
CA 1175212
(12835A) (15.3.82) ABSTRACT PRODUCTION OF BLOCKS, BRICKS AND TILES. A method of manufacturing a thermally insulated building block (54a) comprises foaming a quantity of foamable plastics material in an enclosed space (56) between a building block (54) and a closure means (52), the quantity of material being sufficient to fill the enclosed space (56). The foamable material may be injected into a cavity in the block onto an outer surface of the block (54) or onto the closure means (52) prior to locating the block (543 and closure means (52) relative to each other to form the enclosed space (56) therebetween. The block (54) is transported between upper and lower parallel endless belts (55, 50) during foaming and either belt (55, 50) may provide the closure means (52). If the lower belt (50)provides the closure means (52) the upper belt (55) maintains the block (54) in contact with the closure means (52) during foaming.
399816
Blackwell James B.
Connett Michael
Connett Peter
Beamech Group Limited
Gowling Lafleur Henderson Llp
LandOfFree
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