Apparatus for preparing an annular body of a hydraulically setti

Details Apparatus for preparing an annular body of a hydraulically setti Apparatus for preparing an annular body of a hydraulically setti

1984-05-16

1986-12-30

Woo, Jay H.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156187, 156446, B31C 100

Patent

active

046327207

ABSTRACT:
Steel, cast iron, synthetic resin or concrete pipes are coated with a hydraulically setting mass, such as cement mortar or a mixture of cement, fibers, aggregates and optional additives, by entraining the mass before it has set from a storage container having two opposite walls moving at about the same speed, one of the container walls being formed by a portion of the circumferential wall of the pipe being rotated about its longitudinal axis and the opposite container wall being formed by a tensioned carrier band having one end affixed to the rotating pipe and the mass with the covering tensioned carrier band being wound around the rotating pipe.

REFERENCES:
patent: 3728181 (1973-04-01), Simmons, Jr.
patent: 4006049 (1977-02-01), Gardner

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