. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. and made adjustablefor time of cut off between the limit of ^/g and^8. The roller is kept in contact with the camby the spring K. The cam is shown on the engine frame. 148. COMPOUND STEAM OR AIR ENGINE. Watsontype. The steam or air is admitted from the bottom and betw
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. and made adjustablefor time of cut off between the limit of ^/g and^8. The roller is kept in contact with the camby the spring K. The cam is shown on the engine frame. 148. COMPOUND STEAM OR AIR ENGINE. Watsontype. The steam or air is admitted from the bottom and between the pistons, driving the pistonsoutward to the position asshown at the left end ofcylinder. When the pistonsare in this position, the camvalve opens the top port andcloses the feed port, thusallowing the steam or air tocollect between pistons andpass to the opposite side ofthe same, driving them in-ward to the position asshown in the right end of cut. As soon as the inward stroke is com-pleted, the extension stem on pistons opens the end or exhaust valves,which remain open until the pistons complete their outward stroke andcycle of revolution. To reverse the motor, steam or air is taken fromthe top instead of the bottom. The motors are so arranged that steamor air can be used once and exhaust, or it may be used 76 STEAM POWER APPLIANCES. 149. TRIPLE EXPANSION MARINE ENGINE. Type ofsteamer Minnesota. Proportion of cylinders, i, 5, 15 in area; stroke.
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