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301. Rod and Ball Mill
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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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The town of Gilman circa 1953. The majority of the population lived in company housing and paid rent to the New Jersey Zinc Company. The company was responsible for maintenance on the homes and had carpenters, etc., working on staff for the upkeep of these properties. [related to neg. 2012.006.076]
303. New dryer placement
305. Zinc dryer system
308. Mitchell Sets
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Mine Safety Meeting ("Fundamentals of Accident Prevention for Supervisors") at the Gilman Mine. Participants are standing and seated around a table with a table sign: "United States Department of the Interior Bureau of Mines." Other signs visible say, "Think," and "Attitude."
Pictured, (l-r, standing) Bureau of Mines instructor, Vernon Andrews, Darrell Barnes, Bernard Schlegel, Jack Johnson, Harold Stienmier, Thomas Jeffries, (safety manager)...
316. Transportation
317. Cap lamp room
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Berniece Chadwick, Alberta Limatta, and Ella Burnett with Hawkeye and Jean Flaherty behind them in the cap lamp room. The belts visible on Berniece and Ella hold a battery pack on the back with a power cord attaching to the lamp. Each lamp had 2 filaments so that if one burned out, the power could be switched to the second.
318. Mantrip
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Loading up for transportation to lower levels in the mine. The 16-10 incline goes down to the 18 level (at one time it went all the way to the 24 level). Transporting people was called a mantrip.
In the front seat are Terry Pierson, Ella and Pete Burnett. Victor Pierson is standing at left in the yellow helmet.
319. Cap Lamp Room
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From left, Bill Burnett, Hawkeye (Gordon) Flaherty, and Ella Burnett are standing in front of cap lamp units at 16 level in the Gilman mine. Alberta Limatta is at far right.
The shaft house had a 2 cage lift system, taking miners between levels. It could work with one cage going up and the other down, or with just one isolated cage moving. Cap lamps were put on before going into the mine and returned upon coming out.