Show how ow do you figure drilling costs there are several factors you should consider 1 the speed of your drills 2 the air they consume 3 the time they lose through breakdown break down 4 the item of repair costs if you watch vatch all the these se things you will find that your hamers are paying your largest dividends they drill fast on little air and have far less lost time and repair costs charged against them the design is right and the materials and workmanship of a as s high a standard as it is possible to attain hamers are described in bulletin ask for a copy M INGERSOLL RAND RAN COMPANY new york S W temple st salt lake city london 17 44 branches t the he world over 30 sn mining fiefer layne bowler the highest working value at a minimum because these produce in cost they embody the latest improvements hydraulic design an and d construe construction action and never fail the highest standard of quality embodied we can refer you to hundreds of satisfied users tailings watering De station and sinking types all sizes quick deliveries THIS B BOOKLET GIVES VALUABLE information TION write forit for it ask for CatalogNo catalog no 22 I 1 lit LAY LAYNE NE BOWLER corporation SANTA FE AVENUE Z R LOS ANGELES CAL worlds largest water developers ROBINS RO BINS CONVEYING MACHINERY MACHINE RY 7 tons of limestone were taken from the stocal stockpile pile at the dominion iron and steel companas Comp anys qua quarry rry and loaded into t the he hold of a steamer in 3 hours 37 minutes by a series of robins belt conveyors this is part of the robins system send for our handbook of conveyor practice t ice and learn more about it R ROBINS CONVEYING BELT CO I 1 salt lake city newhouse chicago old colony colon y park ro row w building N Y city son san francisco the griffen co I 1 birmingham ala C B davis co |