11. The air cylinder usually comes in one of three standard sizes : 4 liter, 6 liter, or 6.8 liter. 12. To the rear of the main structure was a raised deck, beneath which were housed 6 high pressure air cylinders . 13. The worker wears packs on the back and front, containing an air bag, compressed air cylinders and a firing mechanism. 14. This device had a rotational speed from 18 Hz down to zero for each charge of the compressed air cylinder . 15. They salvaged a high-pressure compressed air cylinder weighing about half a ton, to learn more about the nature of the explosion. 16. I think you can design your own pneumatic spring, not a standard air cylinder that depends directy on the gas laws. 17. Newer side-impact airbag modules consist of compressed air cylinders that are triggered in the event of a side impact vehicle impact. 18. More commonly found however, the screw press has the cone pushed into the point of discharge via a hydraulic or air cylinder . 19. The air cylinders were below deck in the eighth void from the bow and stretched cables attached to the ramp to raise it. 20. Each train driver signals the tower when the switches need to be moved, which is done with electric buttons that trigger air cylinders .