MV CONTENTS 



ART. rAnE 



'.I.i-tieity of Suction Column . . 615 



la mi Suction Side . . 617 



- mi lrlivery Side .621 



Summary 62o 



169. Air-charging Devices .. ..... . 626 



of Reciprocating Pumps .. 626 



171. I'n.-itive Rotary Pumps . . 627 



CHAPTER XVIII. 



17L' Tim centrifugal Pump ..630 



types and Construction 632 



171. Suction and I >eli very Pipes .. . ., .. .. .. .. 645 



General Theory of Centrifugal Pump .... . . 646 



176. Manomrtric Htfiriency . . . . . . . . . . . . . . . . 657 



177. Compound Multi-chamber Pump .. .. .. .. .. 665 



I7v M'in-ral Equation lor Pump .. .. .. .. .. . 666 



1 'eripheral Speed . . . . . . . . . . . . . . . 666 



Speed at which Pumping commences . . . . . . . , . . . . 667 



1*1. Si/o of Pump for given Discharge Similar Pumps . . . . . . 668 



General Remarks on Theory . . 669 



183. Balancing of End Thrust on Impeller Shaft . . . . 672 



184. Examples of Design . . . . ... . . 676 



CHAPTER XIX. 



185. Water Hoisting from Mines 682 



186. The Hydraulic Ram Types Theory the Pearsall Ram Ram for Air 



Compression ' . . . . . . . . 683 



187. The Jet Pump . . . . .... 693 



188. The Injector Hydrant . . . . - 698 



189. The Air Lift Pump .... . . 699 



Hut. The Hydraulic Air Compressor .. .. .. ..706 



MM. The Humphrey Gas Pump .. ..708 



CHAPTER XX. 



1 !_'. Hydraulic Power Transmission . . . . . . . . . . . . . . 710 



Accumulators .... .. .. ..718 



Int'ii>iti>rs . . . . . . . . . . . . . . 724 



1 Viet inn of Leather Collars for Rams and Pistons Hemp Packings . . 725 

 Water Meters Venturi Meter 727 



CHAPTER XXI. 



197, Hydraulic Lifts and Hoists 742 



' ls The Hydraulic Jigger .. .. .. .. .. .. .. .. 750 



I'.' 1 .'. II yflniulii- Cranes 750 



Jivli a u lie Coal Hoists 756 



Hydraulic Crane Valves 760 



