From the second half of the 19th century the most important material to mine was the coal. From the end of the 1950’s trapeze shaped drifts were built, which were lit by so called turbo lamps. Railway and iron wagon helped in moving the coal. Because of the accidents a rescue process was developed from the second half of the 19th century. One of its important tools was the Westfalia type equipment made at the beginning of the 20th century.