(under subclass 47) Subject matter wherein the switching unit consists of a rotatable drum or cylinder having a plurality of individual components or tuning elements secured in position about the periphery of the drum or cylinder, the components or tuning elements being connected to contact elements which are also carried on the periphery of the drum or cylinder, and rotating means to move the drum or cylinder about its longitudinal axis to thereby bring the contacts located on the drum or cylinder into contact with stationary contacts located on a support member adjacent a portion of the surface of the drum or cylinder.
(1) Note. For the difference between subject matter found in this subclass and the other subclasses under 47+, see (1) Note under subclass 49 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2, for a plurality of diverse disk or diverse turret tuners combined together either mechanically or electrically.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
10+, and the subclasses specified in the notes thereto for mechanical mechanism for rotating a shaft including such mechanism designed for use with a switching means. See also the Search Notes to subclass 10 for additional fields of search for moving mechanism.
200, Electricity: Circuit Makers and Breakers,
1+, for multiple control circuit switches, and subclasses 19.06+ for circuit makers and breakers which operate periodically to control multiple circuits.