Show TRADE NOTES have you read the advertisement top of page 40 the broderick bascom rope company of st louis has a most interesting wire rope exhibit at the portland exposition the iron springs mining company of weiser idaho has ordered an elspass quartz mill from fairbanks morse co for its rankin plant the gold dust mining company of salt lake operating at leesburg idaho has closed a contract with the holderman filter tank company for a forty ton mill the salt lake hardware company has the contract for the machinery equipment to be used in the erection of the new mill for the sevier consolidated company in gold mountain district utah in the new plant built at basin montana by the basin reduction company eighty callow settling tanks are in use these tanks are manufactured and handled by the utah mining machinery supply company of salt lake the colorado iron works company manufacturers facture rs of ore milling and smelting smelling sm elting equipments beg to announce that their new york sales agent formerly in charge of the traylor engineering works mr S W traylor president at liberty street new york city has been discontinued and for the present the company is not represented in the metropolis all inquiries qu iries requests for specifications estimates etc will therefore be handled direct from the main office at denver colorado until further notice the calumet arizona mining company of bisbee arizona Rr izona is installing a sullivan corliss cross compound steam two stage air air compressor with a total displacement of cubic feet which on account of the altitude at which the compressor operates is is equivalent to an actual delivered capacity of 2700 cubic feet of free air per minute against a terminal pressure of pounds per square inch while running at 83 R P M this machine is expected to attain a very high efficiency being designed to run condensing and to operate when carrying its most economical load on pounds dry steam per one horse power per hour the steam cylinders are inches and air air cylinders 4 inches in diameter with a common stroke of 42 inches rolling inlet valves controlled by independent eccentrics are used on both the high and low pressure cylinders rolling discharge valves are also used on the low pressure air air cylinder in addition to these a number of automatic discharge valves are used on the same cylinder the high pressure air cylinder is equipped with a full set of removable automatic discharge valves which act in a direction parallel paral led with the steam piston rod an interesting feature is the automatic oiling system which lubricates all the working parts regularly and without the attention of the engineer the machine will be used for operating rock drills and other pneumatic tools about mines the company already has three class WB 2 sullivan straight line compressors giving a total air supply of about cubic feet per minute |