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Balfour Fraser Mctear
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Individual
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Individual
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Publication of GB190609223ApublicationCriticalpatent/GB190609223A/en
9223. McTear, B. F. April 19. Drawing.-Tubes and other hollow bodies are supported while being drawn, to keep them central with reference to the die, by means of a conical sleeve e fitting loosely on the mandrel d and moving forward with the tube during drawing. The plug is knocked away just as the last part of the tube passes through the die. In a modification, the tube is constrained in its motion by external slides or rollers.
GB190609223D1906-04-191906-04-19Improvements in or connected with "Drawing" Tubes or Hollow Bodies.
ExpiredGB190609223A
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