Document LgLXwpvQjJVpzmM6Mb2Gj16GX

STOP MOISTURE DAMAGE TO COMPRESSED AIR TOOLS AND PROCESSES # For the driest possible compressed air or gas, use the Niagara Aero After Cooler. Reducing the temperature of the compressed air below that of the air surrounding your lines and tools, it prevents condensation in them and saves trouble and expensive repairs and frequent replacement of air tools. It produces compressed air with 30% to S0% less moisture than by ordinary cooling methods. In addition, it saves the cost of cooling water, paying for itself in a short time. If you use compressed air for operating tools or for any process that brings it in contact with your product, the Niagara Aero After Cooler will decrease your costs and prevent damage. Write for Bulletins 96-P and 98-P. NIAGARA BLOWER COMPANY Over 30 Years of Service in Industrial Air Engineering 405 Lexington Ave. New York 17, N. Y. District Engineers in Principal Cities 143 (184a) ttanea, determining ihe . of a pump or turbine of pure hydreullo lntti*wiQ^S other hand, such *aoe ihapet in developed by mean* o( (tometria stlont, which an the key t0 , between theoretical and praciiui Tbit book l* itillable |or graduate engineering student*, engineer! who are engaged to research on turbom&chinery. IoRTHINGTON-ALL THE WAY! it, Efficient Compressed Air Plant...Engineered Entirely By Worthington Practical Electrical Wiui., uycn H P Richttr, 574 pp, 5)i8), McCrow-lliil Book Co, 53Q W flea York 18, N. Y. Simple enough lor the begUo book it alao complete enough i eneed electrldana. The eooteaia ur, lented In inch a way that the reads* letut both <ht how and why. Th help* the atudeot aolve problem* in practice. Written in three part* that deal; fundamentala, terminology, bade yd and practical theory (2) wiring el and iatma (8). actual wiring el ater^ idrlea, achoola and aim!tar itructunri Electrician* and apprenllcca willI thin book useful. Handbook on HroaAuuc Oru 48 pp, Olost, paper, \ttt. E f tfeagl Co, 303 IP Lehigh Ave, Philcdtlpkit Pa. Divided Into six chapters, tUi deal* with hydraulic-oil ywrlfV*i their tsIuo end weakoeu; imporuu*:* properties not in specification!; af,v'` treatment of hydreullo oils; trouble fag; qualities (bat a good oil <sum eta; and hydro-drive hydraulic cQaf] is written In a staple, practical djWJ'1 mechanics readily understand. Standard Wstotxe Smaou and R rutin UiL 57 pp, $1x9, numerous paper, 150. Amtricen IPtiding l 35 17 39tA St, New York 18, N. Y. la establishing the 1947 Standard Vd Plus H/DDfN Advantages Like Those; tag Symbols the committee on ittdffl Power factor improvement from the synchronous carefully considered the needs of welding equipment and adopted rubs dj provide for the needs o! msniitnj niot0f an<f quick-acting, 5-ep governor. . . comJdwsly automatic control for the entire system, as in designer! end ehop men. The wk [>.'?$* the largest compressed air plants... then's mere worth in Worthington. Bulletin L-667-B1A tells (he complete story of how YC Compressors can Cut your air costs. Worthington Pump and Machinery Corporation, Compressor Division, Buffalo, Near York, KN! been expanded to cover ell typo ing and clerify confusing nomeocUtM| Clear-cut illustration! explain bswj WORTHINGTONadvanced YC design that assures a ln6ct.'lived, cooler and smoother symbol* are applied. $ running compressor, with matnte- Colloid Science (1947). A rfm by E.K Ridtal;'A E Alexander, D O W P Johnson, F Eirich, R F Tacktk W m.*f( fonce and operating expenses at their lowest. Write for further facts that prove Schulman, M P Perots, C S Adds\v ' B M Sutherland and R R Smlt^ f*1 5}xBt, cloth, $6. Chemical PobGskbg, Inc, Brooklyn, N. Y. This highly technical test Is a *T taken from a course of lecture* in science at Cambridge UnivwtfiTi -y. bridge, England, under the attfP*^ the Royal Inatiioie of Chemistry* cusses such subjects as surface ' M*kIi