Confidential Mellon Institute of Industrial Research University of Pittsburgh PROGRESS REPORT for the_Kaekended--MbYfmhas.-2&. 1941_ IHDITSTRTAT.

1.

PLAINTIFF'S EXHIBIT November 1, 1949 Edward H.

"TS^Tai 60th Anniversary 1SS7--1947 Garlock 234- Braided Asbwtos Pack ing in Coil form.

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Boilers Pacific Steel Boiler Corporation Manufacturers of Pacific Steel Heating Boilers, Pacific Circulating Tanks Waukegan, Illinois and Bristol, Pennsylvania pacific STEEL HEATING BOILERS Pacific Steel Heating Boilers are built for steam or hot water heating using soft coal, hard coal, oil, gas, or wood as fuel.

Pumps CHICAGO PUMP COMPANY SEWAGE-CONDENSATION-CIRCULATING BILGE- FIRE-HO USE-VACUUM 2330 Wolfram Street - BRUnswick 4110 - Chicago PRODUCTS--Vacuum and Boiler Feed Pumps, Condensation, House, Booster, Fire Pumps, Circulating, Brine, Sewage, Bilge, Sludge, Pneumatic Tankless Water Systems and Automatic Alternator

Type Of Print Membership Grade in A.S.H.V.E. or Nat'l Soc. in Which Sponsor Holds Membership Proposers 1._________________________________ _____________________________________________ _!

HEATINC VENTILATING AIR CONDITIONING GUIDE 1940 The variation in solar intensity is given in Fig. 1.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1940 trap, and in so doing, raise or tilt the float or mechanism which actuates a steam valve1 automatically.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 nozzles required depends upon their design, the quantity of air handled, and the arrangement of the nozzles.

HEATING VENTILATING AIR CONDITIONING' GUIDE 1940 -temperatures.

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 Therefore, there is no absolute optimum of air temperature or other environmental conditions, which will meet all cases.

HEATING VENTILATING .'

HEATINC VENTILATING AIR CONDITIONING CUIDE 1941 Table 1.