a gentle radial as well as a slight ing or splitting, which is frequently done by hand. The ma- self without strain to the curvatures of the track. With all lateral motion, so that easy adaptation to curves, and avoid- chine is portable and may be readily transported from place ance of strain and… … to six wheeled trucks, as to four-wheeled end a disk, on which are hung two, three, BANK'S AUTOMATIC ROCK DRILL. freight-trucks. or four hammers, which in rotation strike Security from sliding, should cars get off the track, and such devices or any combination of them the tendency to the head of…
Patents · Consists · Asparagus · Assignor · Fiber · Scientific American · Silk · Patent office · Bone flour · Asparagus beetle · White pine · North pacific · Turbine water · Wood engraving · Antedated june · Sewing machine
Internet Archive · Public domain (published before 1931). Free to use for anything.
