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Roland E Groethe

Deceased

from Washington, PA

Also known as:
  • Est Groethe
  • Groethe Est
Phone and address:
640 Lemoyne Avenue Ext, Washington, PA 15301
724 223-8701

Roland Groethe Phones & Addresses

  • 640 Lemoyne Avenue Ext, Washington, PA 15301 • 724 223-8701 • 724 225-6380
  • Canonsburg, PA
  • Sewickley, PA

Us Patents

  • Method Of Manufacturing Shear Blades For Shearing Hot Glass

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  • US Patent:
    45150028, May 7, 1985
  • Filed:
    Sep 9, 1983
  • Appl. No.:
    6/530541
  • Inventors:
    Roland E. Groethe - Washington PA
  • International Classification:
    B21D 2800
  • US Classification:
    72339
  • Abstract:
    A method of making a shear blade for shearing gobs of hot glass without noticeable shear marks. The method comprises heating a blade of tool steel to a minimum of about 400. degree. F. (for 0. 08-inch thick tool steel), stamping the desired outline shape of the heated blank by one set of dies and following by forming the blade in its final shape at such temperature by a second set of dies. The method involves heating thicker shapes at higher temperatures.

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