. Railway master mechanic . very careful in their selection. Tt is said to be madeof the purest gum, and is the most expensive hose onthe market. Although it docs not apparentlyfail in service, it is evident that it has a very seriousdefect—that of swelling inwardly. It will be seenthat while the hose illustrated last month swelled in-wardly and then sponged out, this swelled inwardly bodily. The inner surface of the spongy piece shownlast month was very soft: the inner surface of thepresent piece is hard and horn-Uke. The bore of thepiece of hose here shown was originally H in. indiameter, an
. Railway master mechanic . very careful in their selection. Tt is said to be madeof the purest gum, and is the most expensive hose onthe market. Although it docs not apparentlyfail in service, it is evident that it has a very seriousdefect—that of swelling inwardly. It will be seenthat while the hose illustrated last month swelled in-wardly and then sponged out, this swelled inwardly bodily. The inner surface of the spongy piece shownlast month was very soft: the inner surface of thepresent piece is hard and horn-Uke. The bore of thepiece of hose here shown was originally H in. indiameter, and it is now reduced at points to a half inchand the maximum clear Ixire is about I inch. Thispiece of hose had been in use for nearly two seasonswhen removed. The chime whistle shown in our engraving is onerecently designed by the mechanical department ofthe New York, New Haven & Hartford of fifty engines have already been equippedwith it, and it has been adopted as a standard forpassenger The chime has given entire satisfaction to the road,and is much liked by people living along the line. Itis claimed that while it does not cost any more, it isin several ways superior to the single bell chime, giv-ing a greater volume of sound and being is made entirely of brass with the exception of thethree studs which fasten it to the dome-cap. The Paris-Orleans railway has commenced lubricat-ing the flanges of the leading driving wheels of itslocomotives to reduce the wear which occurs on curvesof short radius. It is claimed that the life of the tires isincreased by 100 per cent, on very crooked pieces ofroad and this increase has in individual cases reachedas high as 150 per cent. The oil is applied to theflanges by a simple apparatus which prevents thepassing of the oil upon the tread of the wheel. For the purpose of removing muddy and other de-posits from gauge glasses, diluted muriatic acid issaid to be a very good substance. The Philadelphia
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Keywords: ., bookcentury1800, bookdecade1870, bookidr, booksubjectrailroadcars
