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 707
w is used as acom cultivator, the dragbar supportbeing high enough to pass over the grow-ing corn. Fig. 10 exhibits the Hench &Dromgold method of securing the flatclass of spring-tooth on a steel-frameharrow. The tooth is riveted to a malle-able iron hub with ratcheted sides, and abolt passes… … Pio. 8.—Spring-tooth harrow
Mechanical engineering
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