Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 213
759^. PNEUMATIC E M E R -GENCY BRAKE.—Instantaneous ac-tion from air brake pressure on thepiston A, which is connected by ajointed rod to the levers E, E, throwsthe brake H in contact with the railwith great force. 204 ELECTRIC POWER AND CONSTRUCTION. … 759/. SOLENOID ELECTRIC FAX.—A circular magnet attached to a pivoted armand fan blade, oscillates within two electriccoils by the alternate make and break of thecircuit from the battery by the contact fin-gers and studs. Requires no switch : sim-ply stopping or starting the fan blade putsit out and…
Mechanical movements
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