Improvements in Spark-gap Devices for Wireless Telegraphic and Telephonic Apparatus.

摘要

10,266. Bellini, E., and Tosi, A. April 27. Spark-gap apparatus. - In spark-gap apparatus for wireless telegraphy and telephony in which the spark is subjected to the action of a jet of gas, in order to cause the jet to act before it has expanded and lost speed, both of the conductors are made hollow and conduct the gas so that it strikes the spark perpendicularly as it issues from the tubes. The spark takes place between the two annular surfaces a, b and the gas travels as indicated by the arrows c, d, f g.