A new linear oscillating motor

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Abstract
The paper describes the performance of a simple motor which produces directly a linear oscillatory motion. The amplitude range is of the order of 5–50 cm, and at an amplitude of 25 cm, frequencies of 10–12 c/s have been achieved. The moving member is a conducting metal ring sliding over a laminated bar of iron. The coils are at both ends at a distance apart greater than the oscillatory amplitude. The motor is operated from a single-phase 50 c/s supply.An analysis of the induction mechanism is attempted and several practical machines are described.

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