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Pratt and whitney model b lathe operator's instructions


Pratt and Whitney Model "B" Lathe Operator's Instruction Manual
1) General Instructions2) General Descriptions of Working Parts Charts and Illustrations Floor PlanSpeed and Feed DiagramFront and Rear ViewsHeadstock GearingFeed Gear BoxCarriage and Apron DetailsCam-lock Spindle NoseThread Chasing Dial DiagramFormula for Figuring Change Gears for Special ThreadsChart for Special Threads Multiple Thread Indexing withThread Chasing Dial



Pratt and whitney model b lathe operator's instructions