us , with all these precautions , very little . radiation takes place , even although the engine may not have been working for a consid - erable time . The action of the single - acting pumping engine is quite different from that of the reciprocating engine , having the connecting rod coupled to a… … Fig . 98 . — EquiHbrium Valve . a , Valve . b , Spindle for valve . c , Seat for valve . d , Holding - down bolt . e , Cross bar . and when forcing sets are used in connection with lifting pumps , as is often the case when pits are very deep , the water is forced up the stand pipe by the mere…
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