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41. Rebuilt mine car
43. Fine crusher
46. Flotation area
48. Drilling
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H. Lee Ferris is shown oiling, checking and adjusting landing chairs at #1 shaft. These landing chairs are safety devices that fall into a blocking postion under the floor of the cage when it reaches the top of the shaft. These devices are on the sides of the shaft and prevent the cage from descending into the shaft until such time as the landing chairs are released manually. Mr. Ferris is standing in the cage which has been lowered to a point...
54. Mucking machine
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The rod and ball mill. The rod mill is on the left and ball mill on the right. These were used to grind the zinc concentrates for additional chemical processing. Prior to this, the material had chemical agents added to allow the zinc mineral surface to adhere to flotation bubbles. These were some of the steps for making the zinc ready to ship in railroad cars.
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Emmet Flaherty preparing to pre-heat two blank pieces of hollow drill steel. In the background is an automatic oil-fired forge which will bring these blanks to an exact temperature for forging. From the hollow drill blanks, finished pieces of lugged steel are formed for use in rock drills.