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 566
a sewing machine, the motor is secured to the underside of the table in an inverteil position, and the regulating lever connected to the treadle.In this position the field magnets fall apart of their own weight and the machine does notwork. It is only when the treadle is pressed and the magnets are…
Mechanical engineering
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