. Railway and Locomotive Engineering . one sidewhen it may be required to raise or lowerair pumps on the locomotive. The third drawing shows a ratchet orscrew drill specially adapted for work inplaces where the space for drilling islimited. The drill may be made as shortas possible and is combined with a feed-ing screw as shown. The end of thedrill into which the thread is tapped maybe made of a square form readily adapt-able to an ordinary spanner wrench forturning the drill. The entire length ofthe device need not exceed four men are well aware that itfrequently happens tha
. Railway and Locomotive Engineering . one sidewhen it may be required to raise or lowerair pumps on the locomotive. The third drawing shows a ratchet orscrew drill specially adapted for work inplaces where the space for drilling islimited. The drill may be made as shortas possible and is combined with a feed-ing screw as shown. The end of thedrill into which the thread is tapped maybe made of a square form readily adapt-able to an ordinary spanner wrench forturning the drill. The entire length ofthe device need not exceed four men are well aware that itfrequently happens that there are brokenstuds or bolts in spaces where the ordi-nary ratchet cannot be operated. A drillof this kind will be found not only ofservice in many instances, but will alsohelp to avoid removing other parts of thelocomotive to make room for the opera-tion of a regular ratchet. J. G. KOPPELL. Montreal, Canada. scarcely any glass and is used instead oflake or river sand, account of short haul;and the difference in the price is very. The Use of : Sand is regarded by some people as anitem of little importance, but it plays avery important part in the performancecf locomotives; both in fuel economyand handling tonnage, if properly usedin starting trains and pulling them overgrades. It also prevents the wear of tirescaused by unnecessary slipping. Thereis a certain grade of sand used on someroads that has considerable clay in it and .\TT.\ VO\< .MR HOIST, little if any; but if it should cost a littlemore it would be economy to get goodsharp sand for locomotives use if it isavailable. Sand boxes and pipe jointsare some times neglected and enginesfrequently arrive at terminals in rainyweather with wet sand in box and pipesclogged and very often the box is filledwith dry sand before the wet sand is re-moved. The engineer may report theSanders cleaned and it is then necessaryto empty the box to do the job right. Thebox and pipes should be absolutely freefrom mois
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