on the top of the condenser ; and cer - tainly in this position the engineer commands a better view of the machinery , but his duties when the ship is under steam lying between the engine and the boiler rooms , the hand gear should be placed in such a position that it can be reached at a moment ' s… … Fig . 339 . — Hand Gear . a , Injection handle and lever . b , Blow - through handle and lever . c , Throttle handle and lever . d , Sectors . e e , Thumb screws . row . Some arrangements have a central rod for the injection valve , a hollow tube with levers for the blow - through placed over it ,…
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