Triple-Piston Pneumatic Circular Saw [Restoration]

This restoration is on a 1920s Model B12 "Safety Saw" pneumatic circular saw made by the Ingersoll-Rand Co.. The "Safety Saw" name was in reference to the patented design of the retractable blade guard, one of the first of its kind. This saw runs off of a triple-piston "Little David" motor that...

35 min - Home, Garden & Craft - Hand Tool Rescue

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