Retainer gland for mechanical joint pipe

Details Retainer gland for mechanical joint pipe Retainer gland for mechanical joint pipe

1981-07-01

1984-02-21

Scanlan, Jr., Richard J.

Pipe joints or couplings

Detachable hinge

285420, 285232, 285235, 285264, F16L 2700, F16L 2500, F16L 2100, F16L 2704

Patent

active

044325711

ABSTRACT:
A retainer gland and gland assembly for mechanical joint pipe. The retainer gland has at least one hinge arm extending axially from a side of a flat ring flange portion on the opposite side of the flange ring from a circular rib gland portion. The hinge arm has a transverse hole through its outer end. The gland assembly includes two identical retainer glands encircling a spacer pipe the ends of which are inserted into opposed mechanical joint bells. The flange ring of each retainer gland is bolted to the flange of the respective mechanical joint bell, and the hinge arms of the two glands are pivotally connected by a hinge bolt passing through the transverse holes. The resulting restrained mechanical joint connection not only permits assembly of angularly misaligned pipes, up to the limits allowed by the standard mechanical joint bells, but also accommodates changes in angular alignment after installation, due to settling.

REFERENCES:
patent: 533761 (1895-02-01), Walker et al.
patent: 1812678 (1931-06-01), Bernert
patent: 4076281 (1978-02-01), Davis
American Pipe Manual, 15th Ed., 1979; American Cast Iron Pipe Company, Birmingham, Ala.
Pipe Economy, No. 75, 1975; Clow Corporation, Bensenville, Ill.
Catalog 1978B, Davis Bell-Stop Wall Casting Assemblies; Davis Piping Specialties, Inc., Jericho, NY.
U.S. Pipe Restrained Joints, 1978 Ed.; United States Pipe & Foundry Company, Birmingham, Ala.
U.S. Pipe New 42" & 48" Usiflex Flexible Joint Pipe, U.S. Pipe & Foundry Co.

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