ner to open or close the tongs; and Pictured in the accompanying engraving is a new when lifting the ice by means of the handles, the weight of the block will "he indicated on the scale. form of sheet piling, adapted to be driven into sand or soft earth, to support the surrounding material When it… … The latter are provided with the usual racks C adapted to be engaged by the clutch. Rails are mounted at each side of each rack, and guide shoes carried AN IMPROVED DRAFT REGULATOR AND VENTILATOR. by the car engage these A NEW FORM OF SHEET PILING. rails. Above the car is When used as a ventilator,…
Magnetic · Rubber · Automobile · Turbines · Apparatus · Scientific American · Cable · Union Pacific · Thumb nut · Rubber boots · American february · Magnetic work · York city · Driving wheels · Magnetic survey · Sand mold
Internet Archive · Public domain (published before 1931). Free to use for anything.
