Apparatus for applying enamel slip to pipe

Abstract

Described is apparatus designed for applying enamel slip simultaneously to the internal and external surfaces of a pipe which includes a housing with a rod mounted centrally therein so that a clearance space is formed therebetween. That clearance space measures somewhat more than the thickness of the wall of the pipe under treatment which is to be moved in the clearance space, which is being filled with enamel slip. The clearance space between the housing and the rod measures at least 1.5 times the thickness of the pipe wall. In one of the embodiments of the invention, the housing and the rod are of cylindrical shape. The housing is provided with an enamel circulation system which includes a pump communicating with the housing and a reservoir via pipelines. The reservoir is filled with enamel slip and is provided with a thermoregulator.

Dependencies are inferred from the claim text.