Method for fabricating a valve

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator

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Details

29157R, 29DIG4, 137 15, 137315, 137318, B21K 120, B23P 1300

Patent

active

045219486

ABSTRACT:
A segment is cut off a rotating hexagonal bar by opposed cutting tools which form a raised seat for a sealing gasket. The segment defines a hexagonal valve body into which coaxial larger-diameter and smaller-diameter holes are drilled from oppositely facing walls of the six walls of the body, respectively, and a round distribution chamber or port is drilled through the seat centrally thereof and into one side of the body. An internally threaded sleeve is tightly fitted into the smaller-diameter hole and extends toward the chamber to define a back seat. A charging port is drilled through the opposite side of the body and into the sleeve inwardly of its threads. A valve stem with a head at one end having a smaller diameter than the larger-diameter hole is inserted therethrough and is threaded into said sleeve until the head is in the chamber and the opposite end of the stem projects externally of the sleeve for actuation of the head. Another sleeve is tightly fitted into the larger-diameter hole and extends inwardly to define a front seat. The head is alternately engageable with respective front and back seats. A charging nipple is tightly fitted into the charging port. The sleeves and the nipple are brazed into the holes and charging port, respectively. A pair of spaced mounting holes parallel to the charging port and spaced from the chamber are drilled through the body, each one at an apex of a pair of body walls not intersected by said holes. Although a hexagonal body has been found to be the preferred form and the most efficient use of material for the body, other less efficient forms may be used.

REFERENCES:
patent: 1825042 (1931-09-01), Baldwin, Jr.
patent: 1860605 (1932-05-01), Baldwin, Jr.
patent: 1956554 (1934-05-01), Baldwin, Jr.
patent: 1972821 (1934-09-01), Weatherhead, Jr.
patent: 2209709 (1940-07-01), Weatherhead, Jr.
patent: 2309666 (1943-02-01), Parker
patent: 2536727 (1951-01-01), Crawley
patent: 2669011 (1954-02-01), Brumbaugh
patent: 2674786 (1954-04-01), Crawley
patent: 3417450 (1968-12-01), Zell

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