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Pivoting tracing tool
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Tangential grinding
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Machine tool fixture
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Program control mechanism
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Motor control system for positioning devices
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Grinding machine
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Collapsible threading die for selectively cutting straight or taper threads
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Crush dressing mechanism
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Impact-type chuck wrench
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Operator-controlled grinding machine with optical comparator
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Lathe tool
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Toolholder
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Automatic machine tool
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Comparator for testing turbine blades and the like
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Optical projection screen
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Machine for grinding impeller bucket shanks
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Gear-shifting mechanism
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Holding fixture
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