neath the be lifted, and at the Underground wires have very much greater capacity timber to be held while the cylinder end is placed same time to oper- than overhead, but by using another wire for the above. Merely by turning a valve, the compressed air ate acounting return path instead of the… … hook. The hook continuous underground trunk cable, free from _ in- —— terruption, direct from London to the extreme north. consists of a hook- CLAMP OPERATED BY COMPRESSED AIR FOR shaped casing, to SUBMARINE WORK. A POWERFUL COMPRESSED AIR CLAMP. the front end of The value of compressed air in…
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