Show A GASOLINE ROCK DRILL in the basement of the old high school building on pierpont avenue there is ama chine that every mining man and mine owner should see it is called the automatic gasoline rock drill and is manufactured by the automatic gasoline rock drill company of san francisco this machine is a wonder in the way of rock drilling and the way it tears a hole in the hardest kind hind of granite is the highest testimonial to its efficiency and value with a 3 inch bit it will pierce the rock at the rate of a afoot foot in six minutes the drill is f rated fated at seven horsepower horse power and uses one half gallon galion of gasoline an hour it weighs pounds and uses ingersoll 11 sergeant clamp shells feed screw and columns it possesses many superior advantages which will appeal to mine owners W F mitchell so well known in the mining milling camps of the west and an old time friend of the mining review is sole agent for this drill for utah and colorado he will be pleased to show mine owners and mining men what it can do but it is not on exhibition for the general public |