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Edwin Truman Greenfield
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Individual
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Publication of GB190523998ApublicationCriticalpatent/GB190523998A/en
23,998. Greenfield, E. T. Nov. 21. Corrugating; bending.-The apparatus for armouring cables described in Specification No. 8045, A.D. 1899, [Abridgment Class Electricity, Conducting &c.]; is adapted for armouring or making flexible tubes. without the use of a mandrel, by the addition of a guiding-plate 11 to the die 2 which helps to give the inner strip 16 its initial curvature, strengthening - corrugations 18 being formed on the strips 16, 17 by the corrugating and feeding rolls.
GB190523998D1905-11-211905-11-21Improvements in Machines for Constructing Flexible Metal Tubes and Armouring Flexible Hose or other Tubes.
ExpiredGB190523998A
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