Heating VentiiiAting Air Conditioning Guide 1939 BLAKELEY, Hugh J.

flow through the tower.

the analogy of electrical resistance-capacitance systems.24 For two dimensional problems in steady state conduction, additional' techniques of solution, are found in flux plotting,6'18 and in the use of a potential tank.6'18 These methods are of most direct use, in problems in which the boundaries of the two dimensional shape'are made up of isothermal and adiabatic surfaces.

AIR HYGIENE FOUNDATION OF AMERICA, Inc.

Philadelphia--Philadelphia, Pa.

526 CHAPTER 48 Transit from California (U. 8.

34 Note on Exhaust Ventilation in Asbestos Works.

2 AebeetQB Fibre for Filtration Purposes,.

Twenty-fifth National Safety Congress Cpmmin,'c Chairman--H.

---------- 1-- MEMBERS Dru joinod Cornoany Dei* Joined Company Data Joined Company TF37 Abreaivt Stair-Association 1937 Dravo Corporation 1968 Midwestern Coating Corporation 1570 Abrasive Materials Division 1962 E.

r'\ oc. fe) 0. s Cn f References to Recent Literature - 7 obtain exact-reproduction of density and contrast, and all are describe!

24 LOCKHEED Hydraulic Brakes SINGLE CYLINDER SHOE RETRACTING SPRING _ _ _ _ WHEEL CYLINDER BRAKE DRUM MINOR ADJUSTMENT CAM FORWARD SHOE MINOR ADJUSTMENT CAM L reverse ' SHOE SHOE HOLD DOWN SPRING OR CUP BRAKE SHOE SHOE TABLE ANCHOR PIN "C" u-`C" WASHERS-1 Figure 20 Lockheed Hydraulic Brake The Lockheed hydraulic brake con sists of two shoes, each separately pivoted on a rigidly held, adjustable anchor pin.

'J : : @8 L---- d C=3 I NDUSTRIAL H YCIENE EATURES Abst.

Illinois ManUFA;^S^|iRS,Association '20 SOUTHfjij cf-iiCA'ap -> January 10th, 1935.

Jokns-Marvville = r.vf.liTY-TwO a r.T fOBTlETH St^CCT Ntw York.N.Y.