Show patented rubber lined sand and slimes pumps PUM PS H P binder centrifugal pump engineer for the allis chalmers manufacturing company of milwaukee wisconsin recently spent two weeks in salt lake city and vicinity in the interest of the companas comp anys with the tests which have been made in various mills throughout the country on the first installment of 4 inch pumps he says 1 I the durability of rubber against abrasive and corrosive actions has long been gr tj iad 0 A exterior view of allis chalmers patented soft rubber lined pump new patented rubber lined sand and slimes pump this pump is essentially a salt lake product having been developed here and first put into test operation in one 0 of f the known and recognized by nearly every mill man A mill man will place a piece of old rubber belt in the turn box of a launder or the discharge box from an elevator because it will withstand the wear longer A wa A 7 interior view of allis chalmers patented soft rubber lined pump local mills the manufacturing and sales were then taken over by the allis chalmers company who perfected it to their well known centrifugal pump standard and who are now building it on a commercial basis mr binder reports that he be is greatly pleased than metal the application of this of soft rubber to centrifugal sand pumps which have long been a source of grief to been thought of until the mill men had never the patentees of this feature made use of it in this district we have two 4 inch pumps installed at different important mining points throughout the country every one 0 which has been giving excellent satisfaction some of the results are very startling for instance in one of the large mills one of our pumps handling the same flow of material under the same head as was being handled by an installation of well known sand pumps gave a current consumption of 15 amperes as against 62 amperes for the other pump the reason for the good efficiency which this rubber lined pump develops is the fact that the durability of the lining and impeller enables us to put real design and finish into this pump and bring its efficiency nearly to the standard of our clear water centrifugal f pumps at one of the large local plants near salt lake our 4 inch pump showed a life of wearing parts several times time greater than the metallic parts which had previously been used and still showed no appreciable wear at the end of this run this pump was handling a combined abrasive and corrosive m material a aerial we have come to regard this feature as 0 one ne of the foremost steps in pumping which has been developed in years and it is marking an improvement which will go far to relieve the difficulties thus far experienced perien ced in handling any abrasive pulp we expect to proceed with the development of all sizes of this pump and orders seem to be easily obtained As a matter of fact based on its record the pump sells itself mr binder returned to milwaukee a few days ago |