B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
117/69, 154/8.06
B65H 81/00 (2006.01)
Patent
CA 1076343
PIPE COATING APPARATUS Abstract of the Disclosure A pipe coating apparatus which incorporates a mechanism for placing weight material, typically concrete slurry, on a pipe where the weight material is delivered ? top of a conveyor belt. The apparatus includes a vertically aligned housing which receives the weight material and has a slot of adjustable height on one side. A conveyor belt extends between two rollers. One roller is located to the side of the pipe. The second roller is located to the side of the first roller and preferably parallel to and immediately below the axis of the pipe. The pipe is supported by the apparatus and the weight material, concrete in a tacky state, travels with the reinforcing mesh along the top of the conveyor belt as it travels endlessly around the two rollers from the slot where the weight material is metered on top of the conveyor and wraps in helical fashion about the pipe as it rotates and moves lengthwise. A coating of specified thickness is applied by the apparatus. A modification enables the conveyor belt to carry the reinforcing mesh and an outer wrap offset laterally from another to lap the adjacent turns of helical wrapping, and a narrow belt rides the conveyor to hold the compressed concrete in position along the helical turn last placed prior to covering by an offset.
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