he inventors claim, produces an absolute va- turning, revolves the rod to which it is attached, which com- itsin plain but handsomely made cases, which do not dis- cuum. The valves are operated by means of cams and levers, municates its motion directly, or by gearing, to the pen, tract the eye from… … plays is that of the Signal Service Bureau. It is intended ed in bulbs, to, but do not intersect, the gas pipes, with the possible to secure where atmospheric pressure alone is relied to show a signal station with all its appliances. The prin- argand burner in the middle. The gas is lit at the…
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