. Mining and Scientific Press . nee, Michigan. The company spe-cializes in electric pumps ror deep mines, and the gripart of the new publication is devoted to a description olequipment designed for this purpose. Recent years hav•? ol ample I be varlo as and parti Mine pump » tinually being sal. n en I the load This dai ed In trie pump po acl Ion a - i ompared u it hrealllancy and steam-cusblon •• t which shockOf equal Importance is their design willBon through them must be ii illy Ian down tu a minimum, b uniform throughout the pump Tl uniform veloi i vital Import. IM-sr
. Mining and Scientific Press . nee, Michigan. The company spe-cializes in electric pumps ror deep mines, and the gripart of the new publication is devoted to a description olequipment designed for this purpose. Recent years hav•? ol ample I be varlo as and parti Mine pump » tinually being sal. n en I the load This dai ed In trie pump po acl Ion a - i ompared u it hrealllancy and steam-cusblon •• t which shockOf equal Importance is their design willBon through them must be ii illy Ian down tu a minimum, b uniform throughout the pump Tl uniform veloi i vital Import. IM-srott-:Menominee Electric rump Lifting -I I eel machinery. Generally electric pumps can be operated moreeconomically than steam; but. even if they could not,there is a convenience about them that is highly are no long leaky steam-lines in the shafts with theirattendant losses. Electric pumps are clean and easy tohandle; the pump-rooms can be kept cool and comfortableinstead of over-heated. The cost of pumping is receivingparticular attention at this time and economy of operationis really more important than low first cost. Prescott-Menominee pumps are designed and built by menwho are familiar with underground conditions and who un-derstand the requirements of severe and continuous but the best can stand up under such conditions andit is to meet these conditions that Prescott-Menomineepumps are designed and built. There are three governing factors in the type of water-end to be selected for mine pumping: the quantity of waterto be handled, the character
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