To insure the action of the gap, the arc was blown out by a magnet or air blast.
In contrast to this, a “solid” type of fuel injection may be employed to eliminate the complications of the “air blast” system.
Frantically Arcot warned them away, lest the air blast from their props tear the glider from the magnet.
The air blast, moreover, by being diffused round the glass of the condenser apparatus, would somewhat mask the appearances.
The same old tuyer iron receives the air blast from the same old style leather bellows, and there is nothing more satisfactory.
The true bottom is perforated, so that air can be forced in by an air blast admitted through the trunnion and the air chamber.
He pulled it out and used it to whirl him upright again; then its air blast drove him back to the surface of the asteroid.
The hydrogen and steam valves are now closed and the air blast turned on.
After this any dust or dirt adhering to the sugar is blown off by an air blast.
City grit cut at my ankles from the air blast before I could hop into the bubble and give him my destination.