Northern Telecom Limited

William E Cowley

Michael A Shannon

Victor Louis LeNir

Apparatus for applying pulp to a conductor with a control to operate an adjusting means to vary the amount of pulp fibre in a pulp bath dependent upon signals received corresponding to weight of pulp applied to the conductor whereby the weight is controlled within preset limits. Another requirement is an oven with at least two zones and a moisture measuring and diameter measuring means for pulp issuing from the oven, the latter means controlling the oven zone temperatures to provide a controlled degree of pulp expansion during flash evaporation and a controlled moisture retention in the dried pulp.

Control in application of pulp insulation to electrical conductors

A method and apparatus for testing the moisture content of pulp insulation on an electrical conductor during the application of the insulation onto the conductor, in which first and second potentials are applied across a pair of voltage dividers having the insulation connected in parallel with each divider at its node, obtaining a measure of the potential at each node, and obtaining the difference between the two measures.

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Ottawa, Canada

William E Cowley