. Operation of trains and station work and telegraphy . roved) : A two-inch train lineis located under the car, at the mid-dle of it a cross (558) Figure 29,is placed, from which fittingbranches lead to either side. Thereshould be a pitch from the cross tothe valves at either end. Each sideof the car is controlled by a separ-ate admission valve and tempera-ture regulator. By referring to theillustration it will be seen that theheating surface consists of twocourses of two-inch pipe along thetruss-planks, expansion loops beingprovided as shown. The two-inchreturn bends (559) used for theseloops
. Operation of trains and station work and telegraphy . roved) : A two-inch train lineis located under the car, at the mid-dle of it a cross (558) Figure 29,is placed, from which fittingbranches lead to either side. Thereshould be a pitch from the cross tothe valves at either end. Each sideof the car is controlled by a separ-ate admission valve and tempera-ture regulator. By referring to theillustration it will be seen that theheating surface consists of twocourses of two-inch pipe along thetruss-planks, expansion loops beingprovided as shown. The two-inchreturn bends (559) used for theseloops are tapped to spread. Theupper line has to be in line withthe top of the truss-plank, so onlythe lower pipe pitches downwardbecause of the special tapping. Thelower radiator pipes run to loopswhich end in the special bends(560), and from the side of thesebends a one and a half drip pipe iscarried down through the floor tothe automatic tee traps. All thepipes which lead to traps have to pitch downward sowater of condensation may always readily pass to.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadtrains, booky
