US PATENT SUBCLASS 48 / 22
.~.~.~.~ Concentric

Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

*  DD  ACETYLENE {5}
*  DD  .~ Generators {5}
4  DF  .~.~ Water feed {15}
19  DF  .~.~.~ Ebb and flow {3}
22.~.~.~.~ Concentric

DEFINITION

Classification: 48/22

Receptacles in the form of a bell and tank stationary one within the other, and means provided within the bell for supporting the carbid to which water is fed from beneath by a to-and-fro or ebb-and-flow motion controlled by the pressure of the gas in the bell.