Mechanical Contracting & Plumbing January-December 1909 . Detail of Heating Chamber and Connections, Showing Water Spray for Washing Incoming Air. larger toward the outer edges. In op-eration the registers accomplish theirpurpose of diffusing and lowering thevelocity of the incoming warm air in anadmirable manner. In addition to the other features ofthe system one of the most interestingis the provision for filtering the air and isolating the boiler room by means ofasbestos partitions fitted with times when the grate is shaken orashes removed, the boiler room may bemade tight by lo
Mechanical Contracting & Plumbing January-December 1909 . Detail of Heating Chamber and Connections, Showing Water Spray for Washing Incoming Air. larger toward the outer edges. In op-eration the registers accomplish theirpurpose of diffusing and lowering thevelocity of the incoming warm air in anadmirable manner. In addition to the other features ofthe system one of the most interestingis the provision for filtering the air and isolating the boiler room by means ofasbestos partitions fitted with times when the grate is shaken orashes removed, the boiler room may bemade tight by lowering the transoms,while a small vent flue in one corner ofthe boiler room effectually carries 06the dust. 12 gation soon showed the cause ofalarm. the C. W. Webb, sales manager for War-den King, Montreal, is on a businesstrip to Winnipeg. In his absence A. is undertaking his duties. Ma,y 1. 1909. PLUMBER AND STEAMFITTER. PLUMBER AND STEAM FITTER May 1, 1909 Letters from Correspondents on Trade Problems The Editor Invites Short Letters and Sketches Describing Problems Met Withor Original Methods of Doing Plumbing or Heating Work—Nameof Writer Should be Sent Though not Necessarily forPublication. THE DALE BALL COCK. Bourne Bros., Revelstoke, , askPlumber and Steamfitter where the DaleBall Cock is manufactured. The Canadian Wolverine Brass Co.,Chatham, Ont., are the manufacturers.—Editor. COMPRESSING AIR IN TANKS. Plumber, Chatham, ,writes: I have read with in-terest the article on WaterSystems for Country Homesin the Plumber and Steamfitter,of April 1, and would like fur-ther information. I do notunderstand, for instance, aboutthe air compressing. When the boiler is emptyby pumping water out of thewell into the tank or boiler,is there enough air in the boilerto make the pressure required? How much water would youhave in a 140 gal. boiler at 30fts. on the gauge and how longwill the pressure k
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