Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 164
red by itsgland; 3 the punchhead cistern, thescrewed cover havinga hole in its center toguide the end 2 ofpump plunger 9, hav-ing cup leather pack-ing 10, at its lowerend ; 5 represents thelower socket whichcarries the arm 4 to operate the piston 6. The suction valveII is supported by the spring… … FiQ. 142. 183 Pumps and Hydraulics. scribed in lowering the lifting jacks. The relief valve is keptseated by the spring 14. 8 represents the body of the pump16 its packing and 15 the ram packing ring. No. 16 does notmove, but the ram 17 does, having a cup leather reversed at itsupper end applied in…
Hydraulic machinery · Pumping machinery
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