. Electric railway journal . guaranteed capacity of 100 cu. yd. per day of 10hours, so that ample reserve capacity has been provided. Thewet sand bin will hold 1600 cu. yd. and the dry sand bin willhold 700 cu. yd. In addition to this supply about 1000 cu. stored under cover in a carhouse at Tenth Avenue andFifty-fourth Street. This sand is available in case of emer-gencies when no fresh supply of wet sand can be obtained toreplenish the bins in the Ninth Avenue carhouse. The sand used is a fine sharp quartz, free from loam, pebbles columns. The seven dumping doors in the outside wall ar
. Electric railway journal . guaranteed capacity of 100 cu. yd. per day of 10hours, so that ample reserve capacity has been provided. Thewet sand bin will hold 1600 cu. yd. and the dry sand bin willhold 700 cu. yd. In addition to this supply about 1000 cu. stored under cover in a carhouse at Tenth Avenue andFifty-fourth Street. This sand is available in case of emer-gencies when no fresh supply of wet sand can be obtained toreplenish the bins in the Ninth Avenue carhouse. The sand used is a fine sharp quartz, free from loam, pebbles columns. The seven dumping doors in the outside wall areclosed with rolling steel shutters and removable plank gatesare provided on the inside to relieve the shutters of any pres-sure when the bin is piled full. There are no partition wallsin the wet sand bin. A concrete tunnel 6 ft. wide and 5 ft. 8 in. high is built underthe entire length of the wet sand bin to house the wet sandbelt conveyor. Eleven hoppers in the floor of the bin dis- El. Tup of Rails H ikrj. £lectric Ry. Journal Metropolitan Street Railway—Cross-Section Through DrySand Conveyor and other foreign matters. It is dredged from the bottom ofLong Island Sound and is delivered on barges in quantities upto soo cu. yd. to a convenient pier on the North River. Fromthe barges the sand is hauled to the Ninth Avenue carhousein dump wagons having a capacity of 2 cu. yd. each. Thesewagons and their drivers are furnished by the maintenance ofway department, which keeps them at work at other times haul-ing track material. The wagons are backed in on the sidewalk
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