. Railway master mechanic [microform] . p valves have been used, and hasproven very injurious to the paint and structural work ofcars. There are objections that might be urged against a re-turn system, some of which are as follows: It is very com-plicated, and requires the manipulation of a large numberof valves and cocks. There is great liability that the con-densation will freeze in a system of this kind, particularlyin a long train where the condensation has to be returnedto the locomotive and through steam couplings locatedunder the car, because the condensation is under a partialvacuum, a
. Railway master mechanic [microform] . p valves have been used, and hasproven very injurious to the paint and structural work ofcars. There are objections that might be urged against a re-turn system, some of which are as follows: It is very com-plicated, and requires the manipulation of a large numberof valves and cocks. There is great liability that the con-densation will freeze in a system of this kind, particularlyin a long train where the condensation has to be returnedto the locomotive and through steam couplings locatedunder the car, because the condensation is under a partialvacuum, and, consequently, under low temperature. An-other objection that might be urged, is the difficulty ofregulating the steam in a train of cars. We all know thatall cars in a train will not heat alike; this is due to theconstruction or condition of the cars themselves. If thedoors and windows in all cars were fitted alike and theweather strips were alike, the presumption is that thevats nf heating would be uniform; but as they are not, it.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
