Roll of Membership CARPENTER, R.

American Society of Heating and Ventilating Engineers Guide, 1925-26 water-line in both boilers is at the same level, in which case it is neces sary to valve off only the coal boiler to prevent the heating of the water in the coal boiler when it is not in use.

T a b l e 34.

American Society of Heating and Ventilating Engineers Guide, 1926-27 Fig. 81.

American Society of Heating and Ventilating Engineers Guide, 1928 surface covered with a viscous fluid or oil; (2) the true dry filter which removes the dirt from the air by passing it through cloth or felt screens, the openings in which are too small to allow the passage of dirt, or by passing the air through tortous passages.

American Society of Heating jmd Ventilating Engineers Guide, 1929 can be eliminated and the value of the transmission coefficient for a simple wall x inches thick is U= X -+ -+ C (5) and for a compound wall of several materials having thickness in inches of x,, xt, X,, etc., the coefficient is U= (6) .

J.

American Society of Heating and Ventilating Engineers Guide, 1929 All such pipes shall be braced in a proper manner so as not to obstruct the flow of air but to retain the full capacity throughout.

American Society of Heating and Ventilating Engineers Guide, 1929 blower and is used to aid in the atomization of the fuel, the balance being induced by the natural draft through openings in the refractory hearth of the combustion chamber.'

American Society of Heating and Ventilating Engineers Guide, 1929 INDUSTRIAL APPLICATIONS Automatic control of heat in manufacturing processes is believed to be still in its infancy.

T able 2.

American Society of Heating and Ventilating Engineers Guide~19j^ Chapter 14--Automatic Control ture at the air conditioner outlet.

H__eating Sn yst.ems Stokers and Draft Fans .y= The Whitty Company, Inc. 86 Western Avenue -- Boston 34, Mass.

24 ASHRAE Guide And Data Book A.

| THE MANUAL OF INDUSTRIAL SAFETY BY SIDNEY J.