. Railway track and track work . gratedtop. The arm may be hinged so as to leacli down to the tender, or it mayhave a leather hose or adjustable vertical spout on the end. The positionof the column in relation to the track and catch basin is shown in Fig. large water stations a pipe may be carried across the railway, and fittedwith hinged spouts over the tracks. Many water stations have too slow a discharge from the tanks, so that trains WATER AND COALING STATIONS. 191 are delayed in taking water. The Chicago & Alton Ry. puts 90,000-gal. tanks(18X30 ft.) 20 ft. above the rails, with 14-
. Railway track and track work . gratedtop. The arm may be hinged so as to leacli down to the tender, or it mayhave a leather hose or adjustable vertical spout on the end. The positionof the column in relation to the track and catch basin is shown in Fig. large water stations a pipe may be carried across the railway, and fittedwith hinged spouts over the tracks. Many water stations have too slow a discharge from the tanks, so that trains WATER AND COALING STATIONS. 191 are delayed in taking water. The Chicago & Alton Ry. puts 90,000-gal. tanks(18X30 ft.) 20 ft. above the rails, with 14-in. maias to 12-in. water columns,delivering 4,000 gals, per minute (or 4,500 gals, with tanks elevated 25 ft.).A\here the tanks have spouts, these are .^erved by 8-in. outlet pipes. Someof the tanks are two miles from the pump houses. The Chicago, Milwaukee &St. Paul Ry. uses wooden tanks of 50,000 gals, capacity and steel tanks offrom 80,000 to 100,000 gals. The height from rail to bottom of tank is 16 ft., Catch Basin. Fig. 126.—Water Column and Hydraulic Valve. except that those serving water columns are from 22 to 26 ft. high, accordingto the distance (50 ft. to several hundred feet) or other local conditions. Thepipes are 8 ins. to the spout, and 10 ins. to 10-in. water columns. As a rule,however, the main should be somewhat larger than the water column, a 14-in. main to a 10-in. or 12-in. column. The Pittsburg & Lake Erie Ry. isusing steel tanks of 150,000 to 500,000 gals, capacity, and these are replacingthe older 50,000-gal. wooden tanks on steel substructures. The height is 21 rail to bottom of tank. An 8-in. pipe runs from pump house to tank,and 12-in. mains to 10-in. water columns are the standard, delivering waterto the tenders at about 2,000 gallons per minute. The Canadian Pacific Ry. 192 TRACK. uses 40,000-gal. tanks 16X24 ft. (23 ft. at top), having the bottom from 20to 40 ft. above the rails, while the heel of the spout is 13i ft. from the r
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