INDEX. 189

Philadelphia oil pipe, 170.

Pile driver, hydraulic, 143.

Pipe joints, 19, 20.

Pittsburgh oil pipe, 170.

Planing machine, hydraulic, at Wool -wich, 97.

Poplar Docks (London ), cost of hy-draulic power at, 175.

Power, co-operation, 164.

Pressure, friction of water at high, 11;redncing valve, 181 ; used forhydraulic machines, 17 ; regulatingvalve, 183.

Presses, hydraulic, 58 ; failure of, at

. Anderton, 68 ; proposed, for La Louviere canal lift, 69 ; hydraulicforging, 113.

Punching by hydraulic power, 102,113.

(Name.)

Paine, 180.

Parkinson’s water meter, 178.

Piedbceuf, G., hydraulic flanging ma-chine, 116.

Pfaehler, 32.

Platt, 117.

Pocock’s water meter, 178.

Poncelet , uudershot waterwheel, 25.

Prony, 1.

Q

(. Subjects .)

Quetta , S.S., hydraulic niachinery on,140.

R.

(Subjects.)

Ram, hydraulic, 158.

Reversing gear on S.S. Milcado, 142.

Rivetted joints, 108.

Rivetting by hydraulic power, 99,119 ; table of observations on, 108.

Rotary engine with varying stroke,55.

(Name.)

Ramsbottom, 3-cylinder engine, 50.

Rankine, 1, 156.

Rendal, G. W., hydraulic recoil press,

151.

Rennie, 2.

Reynolds, Prof. O., 1, 8, 9, 10 ; experi-ments on the “ critical velocity ” offlow in pipes, 15.

Rieh, Mersey Railway passenger lifts,80.

Robinson, transmission of power todistances, 166.

S.

(Subjects.)

Sheauing, hydraulic, machines, 110,113.

Ship appliances, hydraulic, 138.

Shop tools, 97-125.

Sluice machine, hydraulic, 135.

Solids, flow of, 94.

Spades, hydraulic, 126.

Speed of waterwheels, 23 ; of hydraulicpumping engine, 46, 140 ; of cap-stan, 52 : of Anderton canal lift,67 ; of Mersey Railway lifts, 81 ;of Ellington’s balance lift, 83 ; ofOtis’ elevator, 85 ; of Ouse swingbridge, 131 ; of lifts on S.S. Quetta ,141 ; of turbine propeller, 155 ; ofhydraulic torpedo boat, 156.

Steam accumulator, 35.

Steel, fluid compressed, 114.

Steering gear, 141.

St. Gothard Tunnel , hydraulic drillat, 148.

St. Katherine’s Docks, hydraulic powerat, 171.

Swansea Docks, Irydraulic power at,173.

Swing bridges, 127.

(Name.)

Saint Yenant, de, 94,

Schiele, 27.

Scott, M., use of waste water fromcranes, 63.

Siemens, Sir W., water meter, 179.

Simpson, J., 3, 18.

Simpson & Co., engine trials, 47 ;description of the Wortliingtonpump, 48.

Smith, Hugh, & Co., 119.

Societe Cockerill, 71.

Stearns, experiments on flow of waterthrough a 48-inch pipe, 7.

Standfield, see Clark & Standfield.

T.

(Subjects.)

Tappixg pressure mains, 176.

Temperature, effect of, on flow ofwater through orifices, 3, 4.