d at its upper end to the piyot pin connecting the damper will be moved away from the section A, Department uncovering the opening therein in a degree propor- the arms A. The lower ends of the auxiliary arms are formed with spurs adapted to engage the ice. In tional to the change of draft, and… … 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, the buffer E is moved out an auxiliary frame D, in and other similar work carried on. The piling con- of active position, and the spring H is adjusted…
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.
