MAKING A PATTERN FOR A MACHINE MOLDED STEEL GLOBE AND ANGLE VALVE

Duration: 14 min

Year Published: 1945

Creator: Office of Education (Department of Health, Education, and Welfare)

Color: B&W

Sound: Optical sound

Description: Explains how machine molding affects pattern design and how a patternmaker designs and constructs a pattern for a valve body, including the gating system. From the PRECISION WOOD MACHINING series. Problems in Patternmaking