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1898 - Coalmininghistorypa.org

1898 - Coalmininghistorypa.org

1898 - Coalmininghistorypa.org

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No. 11. FOURTH BITUMINOUS DISTRICT. 371to run at 240 revolutions per- minute at 90 pounds initial pressure,one 150 K. W. Multipolai* "Mine Type"' generator, willi all necessaryinstruments and connections for running electric motoi-s and miningmachinery inside, and lighting outside; two 00 horse power electricmotors in use to haul coal from the mines to the haulage ropes,and thi-ee link belt chain breast machines, only one of which is now atwork. This electric ]»lant has so far been very satisfactory. Theyare also woiking on im])rovements to the ventilation, which whenco)U]»lete will reduce the length of airways by (I,L'.~)t) ^Vet, and haveextene.—A new man-way has been

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