ease the draft last three or four years, until in the fiscal year ending point of the horizon, by means of the mechanism at his upwardly through the smoke-stack. The construction hand, he closes all the acoustic tubes passing from the of the steam nozzle is very simple, the device can be June,… … gether, and when this is done, the rail is laid in pre- de Meulemeester, is designed to prevent these dangers. cisely the same manner as is the custom at present. The apparatus consists of (1) a receiver of the waves STEAM NOZZLE FOR LOCOMOTIVES. of sound and (2) an indicator of the source of…
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