ave been carried out be varied by steps of 56 pounds, the weight being al- A load was applied, and the apparatus submitted to a for some time past in Great Britain by Prof. Hele- ways placed equidistant on either side of the frame, so severe vibration, so as to prevent all possibility of its Shaw… … attached. The fulcrum of this lever is provided with TOP PLAN VIEW OF THE RECORDER, SHOWING THE GENERAL VIEW OF THE RECORDER. four positions, so that the pressure on the plunger may DRUMS FOR RECORDING THE MILEAGE PER HOUR be made equal to one, two, four, or eight, times the AND THE POUNDS PER…
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