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 178
Fio. 5.—Bradley cultivator. Spring-TripCaJtivator-Shovd.—A form of rigidly acting but safcty-spring-trip culti-or shovel (Fig. 8) is made by the Weir Plow Co. Fig. 4 shows its tripping feature, … Fig. 6.—Bradley expansion arch cultivator. 1G4 CULTIVATORS.
Mechanical engineering
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