Ernst Gustav Hoffmann
Ernst Gustav Hoffmann of the Hoffmann Manufacturing Co
c.1864 Born in Dresden, Saxony, Germany
1890 Lived in Beaconsfield Road, Friern Barnet[1]
1891 Ernest G Hoffmann, inventor (engineer), lived in Friern Barnet, with Mathilde, 30, Mary J. Doull, 42 (wife to J. Doull* C.E. absent), Beatrice J Doull, 13, Margaret E. Doull, 11, Florence E Doull, 11[2]
1892 Ernst Gustav Hoffmann patented a ball lathe
1892 Entered the USA for the first time
1895 Patent on improvement in casters and caster sockets; address: New York
1897 Geoffrey Foster Barrett and Charles Barrett persuaded Hoffmann to come to the UK
1898 Sold patent rights on bearings to a new public company incorporated as Hoffmann Manufacturing Co
1898 Patents, with Hoffman Manufacturing Co, both of Barbican, London, on improvements in stop mechanism for turning or cutting machines; on drive chains; on devices for feeding wire for adapted for ball making, etc; on machines adapted for making balls, rivets, screws, etc; on circular cutters for lathes.
1898 Patent on improved means of actuating clutches, brakes, etc; address: Barbican
1899 Patents on improvement in worm gears in connection with elevator apparatus; on thrust bearings; on driving and brake mechanisms for cycles; address: Chelmsford
1900 Patents on improvements in locking devices for nuts; address: Chelmsford
1901 Ernest G Hoffmann, Manager, mechanical engineer, lived in Chelmsford with Matilda Hoffmann 41[3]
1903 Hoffmann left the company
1905 Naturalised US citizen[4]
- James Doull (1848-1815) civil engineer