Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 731
tly from the record which the tuning-forkmade, and thus the time (measured to the ssi/orto part of a second) taken bythe projectile in passing a known distance, along the gun barrel calculated.— Electrical World and Engineer, June 23, 1900. Schmidt Chronograph. This is a portable instrument, and… … Fig. 6. Connections of Schmidt Chronograph. The balance-wheel A with its spring and needle. The electro-magnet B, which holds the balance-wheel at the starting-position and releases it the instant the first current is broken. The electro-magnet C, with its mechanism, which stops the…
Electrical engineering
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