Cyclopedia of heating, plumbing and sanitation; a complete reference work . 19 :- up of wrought-iron pipesscrewed into a cast-iron bas e. Thepipes are eithero >n-nected in pairs atthe top by returnbends, or each sep-arate tube ha- athin metal dia-phragm passing upthe center nearly tothe top. It is nec-essary that a loophe formed, else adead end wouldoccur. This wouldbecome filled withair a n d preventsteam from enter-ing, thus causing portion- of the radiator to remain cold. Circulation Coils. These are usually made up of 1 or 11-inchwrought-iron pipe, and may he hung on the walls of
Cyclopedia of heating, plumbing and sanitation; a complete reference work . 19 :- up of wrought-iron pipesscrewed into a cast-iron bas e. Thepipes are eithero >n-nected in pairs atthe top by returnbends, or each sep-arate tube ha- athin metal dia-phragm passing upthe center nearly tothe top. It is nec-essary that a loophe formed, else adead end wouldoccur. This wouldbecome filled withair a n d preventsteam from enter-ing, thus causing portion- of the radiator to remain cold. Circulation Coils. These are usually made up of 1 or 11-inchwrought-iron pipe, and may he hung on the walls of a room by meansof hook plates, or suspended overhead on hangers ami roll-. Fig. _ -how- a common form for schoolhouse and similar work;this coil is usually made of 1 [-inch pipe screwed into headers orbranch Ins at the end-, and i- hung on the wall below the window is known as a branch coil. Fig. _l shows a trombone coil, whichis commonly used when the pipe- cannol turn a corner, and wheretiie entile coil must he placed Upon one side of the room. pig. Wrought-iron I 55 46 HEATING AND VENTILATION i> called a miter coil, and is used under the same conditions as a trom-bone coil if there is room for the vertical portion. This form is notso pleasing in appearance as either of the other two, and is found onlyin factories or shops, where looks are of minor importance.
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Keywords: ., bookauthoramericanschoolchicago, bookcentury1900, bookdecade1900
