Jozef Karol Hell (May 15, 1713 - March 11, 1783) - Slovak engineer and inventor, significant mining engineer filling machine.

Jozef Karol Hell Born the son of a mining technique Matthew Kornela Hella in the mining town of Bansk� �tiavnica. His younger brother Maximilian later became a world-renowned astronomer.

An important milestone for the technically gifted JK Hella happened studied at the Mining Academy in Banska �tiavnica in 1737. In the secrets of hydraulics and mechanics penetrated with a respected Professor Samuel Mikov�nyho. Both were later thanks to effective technical solutions involved in the development of mines. A task ahead of them getting more than enough.

Manholes in bansko�tiavnick�m district suffered from frequent flooding, with whom he could consult a simple pump. The problem that caused even threatened closing down, and that is not able to correct the English designer Isaac Potter removed because of its pumps to JK Hell.

At the age of twenty-five years, built a wooden rocker efficient machine, which proved a minute to drain nearly two hundred liters of water to a height of 80 meters. The system of these machines worked in Stiavnicke Sieglisberg down and pulling water up from a depth of 162 meters.

His groundbreaking designs with Jozef Karol Hell recorded in the history of world art. Applying mainly found his vodosloupcov� pumping machine that excelled high efficiency and long life. For example, was also used in mining Flooding in Arizona, or when pumping oil in Pennsylvania. Hell also constructed a device for cleaning and pump fresh air into the shafts. This exceptional designer died in his hometown in Banska �tiavnica.