'All White Oak mines are electrically equipped and of course this mining machine is operated by electricity. The machine is mounted and transported on a specially designed truck and moves under its own power from one working place to another. It is taken from the truck by the machine operator and his helper and moved to the place of the coal and place in cutting position as you see it in this picture. The machine consists of an endless chain with 'bits' inserted, which act as cutters. The machine cuts a 'kerf' or hole along the bottom of the coal about 4 inches high and extending back six feet under the coal. The fine coal made by this machine is what is commonly known as 'bug dust.' Cutting machines are operated at night and each machine is capable of cutting twenty places on each shift. These machines are operated on tonnage basis and these operators earn high wages.'
'Coal at all White Oak shafts mines is handled on self dumping cages, which handle the coal uniformly and with a minimum of breakage. Note how evenly the coal is flowing from the mine car. Much more rapid of course than the picture indicates, but it shows how well designed the equipment must be to handle the coal in such splendid manner.'
Steel Mine Car at One of the White Oak Shaft Mines
Description:
'All ready-Hoist! This is an end view of one of our new steel mine cars on a cage at one of the White Oak Shaft mines, and the signal has just been given to hoist it to the surface--450 feet up! These electric equipped hoists can hoist a car every twenty seconds and dump it! The cars are placed on the cages automatically by creeper chains and car stops. One man operates the signals and car stops and chains.'
'This miner has just completed loading a mine car of weighing net about two and one-half tons, and is waiting for a locomotive to come along and take it out and give him another empty car. An industrious miner will load about six and sometimes eight of these cars in one day. This is a wooden mine car that is now being rapidly replaced by steel mine car equipment. The number of post shown in this picture indicate again the immense amount of timber required to conduct operations in a safe manner.'