Resources Contact Us Home
Electronic timepiece

Image Number 7 for United States Patent #4212158.

An electronic timepiece having an intermittent driving means for rotating the second hand step by step, in which the second hand may be driven in two or more ways, one of by a large step as driving the second hand at the rate of one step per second and the other is by a small step such as driving the second hand at the rate of ten steps per second. There is provided a large step driving pulse producing circuit, a small step driving pulse producing circuit, a transducer for transducing the pulse into the rotating motion, a large step transmitting means, a small step transmitting means, a train for transmitting the rotating motion to the second hand, and means for changing the pulses applied to the transducer and for changing the transmitting means.

  Recently Added Patents
Liquid crystal display device having an outer-side optical member and a backlight-side optical member
Fastening device for bicycle seat pad and seat tube using the same
Electrostatic discharge (ESD) protection device
Automated service for blocking malware hosts
Detection of RNA in tissue samples
Locking double carabineer
  Randomly Featured Patents
Apparatus for adjusting delay of a clock signal relative to a data signal
Pipeline blow down technique
Threaded tubular connection which is leak-proof under internal and external successive pressure loads
Polyolefin and ceramic battery separator for non-aqueous battery applications
Method of increasing dielectric break-down strengths of thermoplastic films
Apparatus for controlling vehicle spring firmness
Sound regulator
Transfer printing apparatus
Hands-free communicator
Multipactor device with radioactive electron source