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Otto Leopold
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Non-Portable Lighting Devices Or Systems Thereof
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Abstract
3941. Leopold, O. March 3, 1908, [Convention date]. Actuating valves and cocks.-In apparatus for lighting and extinguishing gas lamps by varying the pressure in the gas mains, the free end of a fixed gas-pipe 20 is covered or uncovered by mercury in a cup 19, which is raised or lowered when the gas-bell is raised by means of a cam-disk 14 acting through a finger 16 and a shaft 17 on a lever arm 18 carrying the cup 19 ; the finger 16, under the action of the weight of the mercury, also acts as a brake. The cam-disk is turned in one direction only by projections on a collar on the bell spindle 10 acting on pins on the cam-disk. When the pipe 20 is uncovered, two semicircular passages 28, connected through passages in the gas cock with the inlet 2 and the burner respectively, communicate with one another, and gas is supplied to the burner. The gas - bell 8 is weighted by shot or the like, and may be operated by hand by means of a spring-pressed plunger 23.
GB190903941D1908-03-031909-02-17Improved Apparatus for Lighting and Extinguishing Gas Lamps.
ExpiredGB190903941A
(en)
Improvements in Valve Appliances for Regulating the Supply of Gas to Gas Jets which are Ignited and Extinguished by Means of Shocks or Variations of Pressure Produced in the Gas Supply Pipe