Double pendulum clock

Details Double pendulum clock Double pendulum clock

1984-08-03

1986-09-23

Roskoski, Bernard

Horology: time measuring systems or devices

Electrical time base

For reciprocating or oscillating element

368179, G04B 1702

Patent

active

046132368

ABSTRACT:
A double pendulum clock swingingly hanging and supporting two different pendulums including a first pendulum rod swingingly pivoted on a clock body and connected to a first pendulum, a drive magnet attached to the first pendulum rod, a drive coil provided on the clock body to drive the first pendulum by means of electromagnetic coupling with the drive magnet, a second pendulum rod swingingly pivoted on the clock body and connected to a second pendulum, and linking magnets provided at positions facing both of the first pendulum rod and the second pendulum rod and swinging the second pendulum rod in accordance with the swing of the first pendulum rod by means of mutual magnetic force.

REFERENCES:
patent: 2185805 (1940-01-01), Feiner
patent: 4395137 (1985-07-01), Wiley

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