y of interesting instances. combustion under pressure. The furnace is airtight, and Bevan’s Air-Cushion for Pipes. spaces, bb’,communica- oa + ting by valve, cc’, on each side of vhe dividing plate, a, with the blast whistle, J. dd’ are vacuum whistles, which act alternately as the chamber sways in… … Bennett’s Aéro-steam Engine. own weight when airis admitted above the piston. This last is done automatically on the piston reaching the end of its up stroke. An AIR CUSHION FOR PIPES is represented in Fig. 4. The object is to avoid the jar Fig. 6. Ostler’'s Anemometer. and pass fully saturated to…
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