International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 345
. Some of theadvantages of the duplex type are the following: Since thecranks are set at right angles, the engine can not get on adead center. One cylinder can be detached when only halfthe capacity of the machine is required. The power andresistance being equalized through opposite cylinders,… … FlG. 422. culates about these coils, cooling the air and drying it at thesame time, the moisture dropping to the bottom of the coils.The glass gauge £ indicates the amount of moisture de-posited. When the gauge indicates too great an accumu-lation of water, it is drained off. The cooling water…
Railroad engineering
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