1976-10-18
1978-09-26
Jackmon, Edith S.
G04B 1702
Patent
active
041159969
ABSTRACT:
The specification details the invention for placing the motive forces within the pendulum system itself, that alternately combine with gravity to produce a predetermined period of oscillation or vibration. The mechanism, attached above the axis, converts the electrical energy, supplied through the bearing, into alternately applied motive force, just sufficient to balance the internal pendulum losses. In some applications, additional force is supplied by this same mechanism to drive mechanically connected vibration registering gear assemblies.
REFERENCES:
patent: 2995005 (1961-08-01), Boyles
patent: 3538756 (1970-11-01), Coombs
patent: 3685277 (1972-08-01), Fedchenko
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