Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 214
rminals of the cable, and thus makingelectrical connection with the drill. There are three conductors leading from the generatorto the drill, one of which is connected with one terminal of each of the solenoids and the othertwo conductors are connected to the two remaining terminals of the… … Fig. 22.—Marvin percussion-drill. 198 DRILLS, ROCK. upon this one rests a brush which is connected with the conductor, which is common to bothsolenoids. The other collar is metallic for half of the circle, and the remaining half is in-sulated from the armature wires. Upon this half rintf rest two…
Mechanical engineering
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