Symmetrically-suspended vertical-swing long-period pendulum mean

Details Symmetrically-suspended vertical-swing long-period pendulum mean Symmetrically-suspended vertical-swing long-period pendulum mean

1985-03-18

1986-09-30

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

33 1HH, 33391, 73652, 181122, G01C 912, G01V 116, H04R 1500

Patent

active

046150226

ABSTRACT:
Two sector-shaped pendulums are supported by crossed leaf springs at two axes on the same horizontal level respectively in a symmetrical manner so that each pendulum can swing about the axis thereof, sector-shaped surfaces of the pendulums being connected to each other by mutually-crossing flexible wires, each pendulum having a movable weight and a rigid extension so that a coiled spring connects the rigid extensions of the two pendulums, and each pendulum has a means for adjusting the center of gravity thereof by moving said weight and for adjusting the location of joints of said coiled spring.

REFERENCES:
patent: 1652255 (1927-12-01), Schweydar
patent: 1923088 (1933-08-01), Hayes
patent: 2576775 (1951-11-01), Case
patent: 2706401 (1955-04-01), Spaulding
patent: 3212057 (1965-10-01), Romberg
patent: 3243772 (1966-03-01), Perkins, Jr.
patent: 4117496 (1978-09-01), Sattaripour

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