He manufactured with his glass-grinding machine optical instruments and compound microscopes with two convex lenses, for which there was a constant demand.
32.
Since the 1980s KAPP provides profile grinding machines among others for the aerospace and automotive industry as well as for transmission manufacturers.
33.
He preferred to carry out this precision work at home, as the grinding machines at the rifle factory were not good enough.
34.
In 1890 the first Van Norman Milling Machine was built, and in 1914 the first of Van Norman's oscillating grinding machines was introduced.
35.
Mackenrodt farmers found extra work as stone miners and agate grinders, as well as, later, as goldsmiths, grinding machine operators and diamond grinders.
36.
The programme was based on folding-arm polishing machines, combination grinding and polishing machines, horizontal grinding machines, glass drilling machines and groove cutting machines.
37.
On the European continent, Johann von Zimmermann ( 1820 1901 ) founded the first factory for grinding machines in Chemnitz, Germany in 1848.
38.
For example, in a letter to Blubel, the commanders of Auschwitz asked him to locate a grinding machine " for solid materials ."
39.
That group of 12 miners is wrestling with a roaring grinding machine that works its way like an iron mole along the seam.
40.
Voelter did not want to leave Keller out at first because only Keller possessed the knowledge of how to build a suitable wood-grinding machine.
