131 RIDER COMPRESSION The construction and Fig. 6. PUMPING ENGINE. operation of this com- The fact that so many pression engine being un- of these engines are in suc- derstood, it will be readily … flange of the case, B, pass- or pipes connected with this description of engine, ing upward between the neither has it any working exterior of the barrel, A, making the pump double- acting above the bucket and compression cylinder, B a Rig. 4 single-acting below it. The power cylinder, C D the pis-…
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