Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1975-06-09
1977-05-17
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
138DIG2, 138109, 138129, 156242, 156425, 156456, 156500, 156574, 285DIG22, 285288, 285423, F16L 914, B31C 1300
Patent
active
040240061
ABSTRACT:
A system for finishing conventionally produced clay pipes having plain ends whereby the pipes are successively placed on mandrels which hold the pipes vertically at the bottom thereof on a first urethane table which is indexed successively through a number of stations, for example 60. At one station liquid urethane is poured into a mold formed between the pipe and mandrel to form a urethane collar. The pipes with this collar are successively transferred, to mandrels on one of two identical winding tables which are similarly indexed through a number of stations, for example 20. At a winding station on each winding table strands of fiberglass filaments are helically wound about the lower end of each pipe and the mandrel to form a bell on the pipe end. After curing, the pipes are then removed from the winding tables. Operations of the tables are under the control of a disclosed control circuit.
REFERENCES:
patent: 2029823 (1936-02-01), Huntley et al.
patent: 2206267 (1940-07-01), Schutz et al.
patent: 2383582 (1945-08-01), Barbehenn
patent: 3623930 (1971-11-01), Grosh
patent: 3730795 (1973-05-01), Medney et al.
patent: 3848904 (1974-11-01), Anderson
Ball Michael W.
Powell William A.
U.S. Concrete Pipe Co.
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