| 41. | This early air conditioner system was modeled from a German mine shaft compressor.
|
| 42. | A first mine shaft was sunk by French engineers on Christmas Day 1914.
|
| 43. | Your doofus son, Timmy, has fallen down a mine shaft . Again!
|
| 44. | They suffocated after falling into a hidden mine shaft and being covered with snow.
|
| 45. | At least two miners were reported missing near Toledo after a mine shaft collapsed.
|
| 46. | There are remnants of the a sorting house and the old mine shaft itself.
|
| 47. | Many of them specialized in pumping the water out of very deep mining shafts.
|
| 48. | Hundreds of strikers surrounded the mine shafts to prevent others from reporting to work.
|
| 49. | Similarly, important producers of the war industry were moved into the mine shafts.
|
| 50. | This shows Bradley, the canal and many coal mine shafts and iron works.
|
