. Official proceedings . kets must be pulledalong in the pit until they are under the hoist, and this delaysthe engine movement sometimes until all the buckets have beenemptied. But even so it is a much quicker operation thanshoveling the contents of the big modern ash pans a singleshovelful at a time. Some rather recent installations haveadopted the electric crane for handling these ash buckets, andthis method is all that could be desired. At one point four ashpits, each holding four engines, handles from 300 to 400 enginesper day, and the limit of what the ash pits can do is not insight yet.
. Official proceedings . kets must be pulledalong in the pit until they are under the hoist, and this delaysthe engine movement sometimes until all the buckets have beenemptied. But even so it is a much quicker operation thanshoveling the contents of the big modern ash pans a singleshovelful at a time. Some rather recent installations haveadopted the electric crane for handling these ash buckets, andthis method is all that could be desired. At one point four ashpits, each holding four engines, handles from 300 to 400 enginesper day, and the limit of what the ash pits can do is not insight yet. This layout consists of two inspection pits, one on eachside of the coal wharf approach. Each inspection pit leads totwo ash pits 30 ft. centers with the ash car track between andon the same level. An electric traveling crane of five tons capac-ity spans the pits, which are 240 feet long, and the buckets canbe lifted and emptied at any time when they are not coveredby a locomotive. • Some Ensfine House Auxiliaries. 83. 84 Proceedings Railway Club of Pittsburgh. The matter of providing satisfactory drainage for ash pitsis an important one. Sewers stopped up is a frequent cause ofannoyance, but it can easily be cured by proper design. In thefirst place, the fall of sewer pipes should not be less than onefeet in ioo, so that a sufficiently rapid flow may be insuredand the sediment not permitted to lodge in the pipes. Theseshould not be less than 8 inches in diameter, and brick wells,3 feet square, should be built every ioo or 150 feet, providedwith ladders built in at one corner and with frames and gratingson top. These wells serve as catch basins for sediment andshould be regularly cleaned out, and if the sewer should stopup the point where the clogging exists can easily be locatedand hose pressure turned on to remove it. At several points inthe bottom of the longer ash pits small wells should be builtand heavy wire netting baskets put in with screen lids flushwith the a
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