Sealing structure for a machine for centrifugally casting pipes

Details Sealing structure for a machine for centrifugally casting pipes Sealing structure for a machine for centrifugally casting pipes

1975-02-10

1976-07-06

Rothberg, Samuel B.

Metal founding

Means to shape metallic material

Pressure shaping means

277 15, 277 34, 277 73, 277 22, B22D 1302, F16J 1500

Patent

active

039676749

ABSTRACT:
The sealing structure comprises an annular sealing member disposed in an annular recess in a ring fixed to the non-rotating casing of a centrifugal casting machine. The sealing member bears sealingly against an annular radial flange connected to rotate with the rotary mould of the machine. An elastically yieldable annular chamber is interposed between the inner end of the recess and the sealing member. A source of fluid under pressure is connected to the inside of the chamber to expand the latter and urge the sealing member against the flange.

REFERENCES:
patent: 2153674 (1939-04-01), Ommundson
patent: 2876492 (1959-03-01), Frieder et al.
patent: 2906565 (1959-09-01), Scherba
patent: 3007518 (1961-11-01), Simpson
patent: 3589435 (1971-06-01), Mougin
patent: 3651859 (1972-03-01), Guminski
patent: 3718178 (1973-02-01), Negre

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