From the “Offenbach Post” in the 1980s:
“Centreless cylindrical grinding machines are a development/invention from Offenbach. On 6th January 1912, the Imperial Patent Office granted a Mr. Herminghausen – employee at Mayer and Schmidt = MSO in Offenbach – a patent for the filed invention. It was a machine “for grinding long cylindrical objects such as pipes, rods, broomsticks and much more”. The great advantage of this processing method was that time-consuming operations such as clamping and centring of the workpieces were omitted, resulting in a significant reduction in processing time. Along with many other developments, this has remained until today an important part of an efficient and economical machining process. Especially for large quantities.
Mr. Herminghausen went with this patent (MSO was apparently not very interested) to Wülfel ironworks in Hanover. There, until 1975, under the company name Herminghausen Werke Wülfel, the technology enjoyed many years of success and many technological advancements of the Herminghausen idea were seen. In 1975, after financial difficulties in Hanover, Roland Offset Faber & Schleicher in Offenbach acquired the Herminghausen company and brought it back to where it had been conceived.”
Today, SFS Machine Tools & Services GmbH is the first point of contact for all repairs and replacements regarding centreless grinding machines from the Herminghausen brand.