Large clock driven by solar cell

Details Large clock driven by solar cell Large clock driven by solar cell

1985-12-16

1987-06-30

Roskoski, Bernard

Horology: time measuring systems or devices

Displays or display device details

Dial or hand

368205, G04B 1904

Patent

active

046766626

ABSTRACT:
A large clock with a dial plate having short and long hands driven by a solar cell. The clock is provided with a sealed box-like long hand and a circular chain around the dial plate. The long hand slowly progresses around the circular chain which is engaged by a pinion protruding from the foremost tip of the long hand and driven by a D.C. motor energized by the solar cell. It is found that a small amount of energy is sufficient for driving the long hand by its outer end than by its inner end positioned at the center of the dial plate.

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