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THE BULLETIN OF THE AMERICAN CERAMIC SOCIETY Volume 16 JANUARY, 1937 Number 1 PLAINTIFF'S EXHIBIT Is ola?

PLAINTIFF'S EXHIBIT I t '>' !

American Society of Heating and Ventilating Engineers Guide, 1936 It should be noted that the figures in Table 2 are for the heating season only and include steam for heating domestic water.

American Society of Heating and Ventilating Engineers Guide, 1937 feathers and lint, the exhaust vent should be large'enough to permit an air velocity of 200 to 500 fpm.

American Society of Heating and Ventilating Engineers Guide, 1937 boiler connection, and also in any case where the connection is less than y2 in.

Heating Ventilating Air Conditioning Guide 1938' Table 1.

Heating Ventilating Air Conditioning Guide 1938 type of trap will blow steam out through the vent while filling, if the pressure on the inlet side is sufficient, and should not be used, therefore, with such pressures unless the vent is properly piped back into the return to a feed water heater, a condenser or a perforated pipe in the bottom of the receiver to which the trap discharges in such a way as to prevent the escape of the steam that comes in with the condensate and passes through the vent.

Heating Ventilating Air Conditioning Guide 1938 Table 1.

Heating Ventilating Air Conditioning , Guide 1938 Table 3.

Heating Ventilating Air Conditioning Guide 1938 The loss by radiation of a given surface depends entirely upon the difference between the temperature of the body and the mean surface temperature of the surrounding walls and objects.

Heating Ventilating Air Conditioning Guide 1938 The instrument is essentially an alcohol thermometer with a bulb approximately % in. in diameter and Y2 in. long with a stem 8 in. long reading from 100 F to 95 F, graduated to tenths of a degree.

Heating Ventilating Air Conditioning Guide 1939 vection are controlled largely by the width and shape of the air space and the roughness of the boundary surfaces.

Heating Ventilating Air Conditioning Guide 1939 .Table 1.