Caspar Wuest-Kunz
Caspar Wüst-Kunz (20 Aug 1856 - 5 Sept 1916) of Seebach, Switzerland
Founded 'C. Wüst & Co
Developed a new type of double helical (herringbone) gears.
1909 US Patent US936973A - Machine for milling double helical-toothed wheels.[1]
1912 Article in 'Machinery' about herringbone gears[2]
For much more information about his life and work, see here.