PLAINTIFF'S EXHIBITI MET-917 ttr.

you purchased them and the years during which you purchased said pans from said company. < Ana.

American Society of Heating and Ventilating Engineers Guide, 1924-: w > < 2 Id ft D H 2 Id ' Id tUu,. td Q 2 < cIdo rf D H 2 Id a, S Id.

Boilers (Gas Fired) TH e BryantHeater & Mfg.Co^^ny Factory, 952 E. 72nd St.

Officers and Council AMERICAN SOCIETY of HEATING and VENTILATING ENGINEERS .^ 1924 President,.................................................... ...................

American Society of Heating and Ventilating Engineers Guide, 1925-26 of the chimney.

American Society of Heating and Ventilating Engineers Guide, 1926-27 As a check on the sizes of hot water mains, Table 60 will'-give safe sizes for gravity systems fed from roof tanks set not less than 20 ft. from the water line in tanks to the highest fixtures.

American Society of Heating and Ventilating Engineers Guide, 1928 Table 4.

_____________________________________________ American Society of Heating and Ventilating Engineers Guide, 1928 Chapter II--Heating by Radiation Results reported by Frost and others indicate that the increased heating efficiency noted with enclosed radiation is due to increased air circulation caused by flue action of the enclosure.

American Society of Heating and Ventilating Engineers Guide, 1928 IIIChapter --Steam Heating Systems and Piping Table 11.

American Society of Heating and Ventilating Engineers Guide, 1928 to be handled from direct radiation, direct-indirect radiation and indirect or fan blast radiation may be estimated as follows: For direct radiation W = 0.3 R For direct-indirect radiation W = 0.6 R For indirect radiation W= where W = lbs. of condensate per hour, R = sq. ft. of radiation, Q = cu. ft. of air per min., T = temperature rise of air in deg. fahr. and H = the latent heat of steam in the system in B.t.u. per pound.

American Society of Heating and Ventilating Engineers Guide, 1928 system of control is most economical in gas consumption, but if air leaks into the steam distribution system during the periods that the gas is turned off and then vents out slowly when the thermostat calls for heat, the result will be a further cooling of the premises between the time that the thermostat calls for heat and the time that steam reaches the radiators.

American Society of Heating and Ventilating Engineers Guide, 1929 Table 7-G.

American Society of Heating and Ventilating Engineers Guide, 1929 Mechanical Draft Mechanical circulation is produced either by blowers of the centrif ugal type outside of the dryer, or by multiple fans of the propeller type inside the dryer, or by a combination of the two.

American Society.0/ Heating and Ventilating Engineers Guide, 1929 COLLIER, William I., (1921).