LOCOMOTIVE ENGINES . DSI of the springs . Some Ornament these parts with bright brass work , we certainly prefer tasteful painting , as the brass work requires con - stant cleaning to keep the machine nice looking . Feed pumps and feed - water apparatus . — Feed pumps , as applied to the locomotive… … l ' ig . 523 . - Feed Pump and Valve Chests of Brass . a , Working chamber . b , Plunger , c , Valve chambers . d , Suction valve . e , Delivery and non - return valves . / , Stop plug tap on boiler . g , Eye piece on end of plunger . pumps , driven with an eccentric ; and independent steam pumps ,…
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