VIRGINIA: IN THE CIRCUIT COURT FOR THE CITY OF NEWPORT NEWS Marie Ferguson Alexander, Executrix of the Estate of Glen W.

#' PLAINTIFF'S EXHIBIT GF-1920 WF o.

% Rel.

I American Society of Heating and Ventilating Engineers Guide 1923 Containing Reference and Design Data Useful in THE PlANNINC AND CONSTRUCTION OF MODERN HEATING and Ventilating Installations -- Prepared from the Society's Transactions--Investigations of Its Research Laboratory -- and the Practice of Its Members Together with A CATALOG AND REFERENCE DATA SECTION CONTAINING ESSENTIAL AND RELIABLE FACTS .CONCERNING MODERN EQUIPMENT AND THE ROLL OF MEMBERSHIP OF THE N SOCIETY Vol. 2 $3.00 Per Volume E2S31S1 Published Annually by American Society of Heatinct and Ventilating Engineers' 29 West 39TH Street New York

mmm Copyright, 1924 BY American Society of Heating and Ventilating Engineers - Printed and Bound by The Horn-Shafer Company BALTIMORE MARYLAND .

American Society of Heating and Ventilating Engineers Guide, 1924-25 . tively heated with ceiling radiation when belt drives were used have found it necessary to relocate the radiation at the floor, when direct motor drives were installed on machines..

American Society of Heating and Ventilating Engineers Guide, 1924-25 Fig. 68.

American Society of Heating and Ventilating Engineers Guide, 1925-26 Table 108.

Officers and Council American Society of Heating and Ventilating Engineers 1925 President....... ........................................ ^................................

American Society of Heating and Ventilating Engineers Guide, 1926-27 The cubic feet of air of standard density taken into the system at each connection is given by the formula: Q = iOOOAf^~i where Q -- Cubic feet of air per minute; A -- Area of connection in square feet; / = Orifice or restriction coefficient; i = Static suction measured in inches of water.

American Society of Heating and Ventilating Engineers Guide, 1928 TERMINOLOGY When any question arises concerning size, rating and capacity, it becomes particularly desirable that certain terms may be understood so that all data may be readily translated into comparable form.

American Society of Heating and Ventilating Engineers Guide, 1928 No additi'onal^allowance need be made for covered mains or risers, but exposed mains or risers used as heating surfaces should be included in calculating the equivalent square feet of direct, radiation.

American Society of Heating and Ventilating Engineers Guide, 1928 260 Chapter XV--Heat Insulation for Pipes and Surfaces Table 4.

American Society of Heating and Ventilating Engineers Guide, 1929 where Z>b = loss of draft in the breeching per foot of length and Z?

American Society of Heating and Ventilating- Engineers Guide, 1929 Divide cubic contents by 800.