Document v6daa0031OrgR9GYVzJqojQBb

ONE PUMPworking on the job is wctitfadMtn in the lrepair shop i The most notable point about SICB-BATH Screw Pumps and Gearex Pumps is their relative freedom from maintenance, THERE is no mystery about the ability of Sier-Bath Pumps to stand up under the most trying conditions. After ell, in such pumps, the worms and gears are the most important parts. And when you consider that Sier-Bath Pumps are made in the best equipped precision gear shop in the country, it is easy to understand their exceptional dependability. Their pulseless flow and vibrationless opera tion greatly reduce maintenance coot--there is much less wear on valves, couplings and other fittings. Pipes. and joints remain tight. With labor costs at their present high figures, these are important points to consider in pump selection. Send for descriptive booklet. aISO MAKOtS or tm-BATH PftOVOH 6CAAS FOUNDED 1905 MEMBER A. O.M.fl. 9524 HUDSON BOULEVARD c NORTH BIRCEN, NEW JERSEY hydraulic-power unit coajpjjjJ transmission end *asodatcd.Mf^ irol. Frequency analysis a^, ' tool lor investigating effect of system parameters upon the ance ol several power-unit cotnp,**; ASME Paper No. 47-4*70. I.J>i*-Prc>ure S<efini-|Iesld DUliU Plant*, by A M Impogluuto, ft ^ g( Griicom Russell Co, The adveu relatively high steam pressure* in i rino power plants superimposes s o lor extremely pure feedwater on the problem ol supplying merchant nt with pure water. Distillation by me of low-pressure steam-heated dtitin^ plants offers advantages from both gingering and economic standpobts,. This paper dlscuasea these atlriii. cages, it touches on recent litemiu* covering the economic side and then goes Into the various equipments suited for distillation. ASME Paper 47-4-86. Analyst* of Test* on Positive Dtfplsc*.' meat Meter* for Liquid Hydrocarbon, by E E Ambrosias, Pennsylvania Suit College, Characteristics of displace' ment-type mechanical meters wheii mensuriog liquid hydrocarbons cotml tute* the subject ol this paper. It H a continuation of an earlier paper. Included are amplification of results and a method ol analysis of data fro test* conducted by the ASME epeeitl tteseareh Committee and the Ameriess Petroleum Institute Topical Committee on Volumetric Research. ASME Poptt No. 47.A*72. Flow In Conductors (Continued from page 108) through the circuit. In practice, how , over, even a small current requires i coordinated drift of an Inconceivable* number of electrons. For example, in a continuous (low ol one ampere, 6.3-. billion electrons pass s given point in* a circuit each second. This is known^ as an ampere-second or coulomb. ,* The little electron can be accused, of responsibility for practically *11, electrical phenomena. All otutrsl' bodies, that is those that do not mani fest an electrical charge, have an equal, nurolrer ol electrons and protons is, their siructur,es. When a body bs. more electrons than protons it hsi * negative charge. Conversely, if body ` is deficient In electrons it Is positivsly^ charged. Positive end Neqativa. It should m CHAPMAN LIST 960 A Small Gate Valve That Will Stay on the Job Here is a compact forged'steel gate valve so ruggedly built that it practically elimi nates the maintenance and replacement problem, because no pressure is trans mitted to the stem, it can be repacked under full pressure. Its quick-acting (breads will not stick or freeze.- It is supplied with super-hardened seats and plugs for extra severe services. Made in sizes from W to 2"-- carbon steel for pressures to BOO pounds; aJJoy steels for prcssurcsto 1000 pounds at 760 F. For higher pressures, specify List 990. The Chapman Valve Manufacturing Company INDIAN ORCHARD, MASSACHUSETTS