Aeronautic Instruments. Section VI : Oxygen Instruments (1923)
NASA Technical Reports Server (NTRS) · leaf 20
ng surface of approximately 100 square inches. A small motor-driven fan F is used to secure a uniform temperature inside of the dome, and an electric light L is provided for illumination and for temperature regulation. Current for the motor and electric lamp enters through insulated binding posts… … pressure noted when the turbine-flow indicator Fig. 20.—Testing Apparatus for Oxygen Control Apparatus. starts to rotate (this should not be less than 63 centimeters). The bell jar is exhausted to approximately 15 centimeters absolute, the pump cut-off, and the center of the barometer slider set at…
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