umb of the right hand places the drill with its lower has a handle for conveniently moving it from place to head in the steam cylinder by piston rods, so that both cutting lipagainst a projecting gauge which securesits place. are operated at the same time by a single steam cylin- correct position.… … Sumner. The mill, which will be chiefly brick, and A TWIST DRILL GRINDER FOR GRINDING DRILLS FROH ONE-QUARTER INCH TO TWO INCHES DIAHETER. six stories high,, with a daily capacity of 1,500 barrels, is now being constructed under the personal super- is clamped by the handle- at the left. Then the…
Patented · Patents · Illustrated · Wheel · Scientific American · Hot water · Horse power · Car wheel · Carbonic acid · Steel car · Left hand · Letter box · Working people · Floor plans
Internet Archive · Public domain (published before 1931). Free to use for anything.
