By opening the gas-valve and finally closing the two valves of the compressed-air pipe.
This hose was then connected to the compressed-air flasks in the submarine.
Carney knew of him just as a machinery man, a seller of compressed-air drills, etc., on commission.
They fitted it with a compressed-air engine of eighty horse-power.
Her motive power consisted of compressed-air engines of eighty horsepower.
The pipes and compressed-air reservoirs should be perfectly tight.
Prior to 1893 Mr. Hargraves (of cellular kite fame) studied the question of compressed-air motors for model flying machines.
The compressed-air motor has yet to receive popular approval.
This shut us off from the air, and our breathing now depended entirely on the compressed-air reserve.
This is in some ways similar to vacuum or compressed-air tube systems for carrying cash in retail stores.