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Scientific American, Vol. 27, No. 12 (September 1872) (1872)

leaf 7

An illustration from Scientific American, Vol. 27, No. 12 (September 1872), 1872, leaf 7
Lowell, Mass., some of whose previous in- times as many as three shad were taken at one cast—the The opeiation is as follows: The tendency of the roller is ventions in this and other directions have been already illus- whole weighing eight and a half pounds. The present season to press downward,… … 1 people. It sounds the alarm and brings speedy succor when fire threatens devastation and ruin. It furnishes to every merchant, broker, and business man who desires it, in the Our engraving represents the pulley, which has part of the sufficiently roughened to be readily rotated by the fingers…

Velocity · Patents · Consists · Advantageous · Peripherical · Peripherical velocity · Sulphuric acid · Cutting velocity · Working velocity · Advantageous peripherical · Scientific American · Admissible velocity · Highest admissible · Advantageous velocity · Average velocity

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