James Denis Twinberrow

Obituary: J. Instn Loco. Engrs, 1932, 22, 265-6. Born in Marley Worcs on 9 October 1866. (Marshall)..Educated at Bedford. In 1888 became a pupil of T.W. Worsdell at Stratford and moved with him to the NER at Gateshead. Became a Materials Inspector on the NER and following a period away from the railway he worked in the drawing office of the carriage & wagon department of the NER at Gateshead between 1905 and 1913 when he joined Merz & McLellan, eventually working on electric traction in Argentina. He died on 10 February 1932 at Bickley. Worked closely with George Harrison Sheffield and his Company.

Papers:
Capacity of railway wagons as affecting cost of transport. Proc. Instn Mech. Engrs, 1900, 159, 557-616.
The mechanism of electric locomotives. Proc. Instn Mech. Engrs, 1932, 122, 51-154
Patents
23096/1895 Improvements in axleboxes, with Richard James Toleman. Published 7 September 1896.
7320/1898 Improvements in the construction of self-lubricating steam engines, with George Harrison Sheffield. Published 3 September 1898.
7878/1898 Improvements in the construction of rolling stock for railways, particularly in connection with wagons for mineral traffic and the like, with George Harrison Sheffield. Published 11 February 1899.
2320/1899 A means for equalizing the pressures on the buffers of rolling stock, and for effecting the coupling of vehicles through the agency of the buffers, with George Harrison Sheffield. Published 5 August 1899.
19446/1902  Improvements in connection with doors and the apparatus therefor, for use upon hopper wagons, with George Harrison Sheffield. Published 4 December 1903.
26594/1902 Improvements in the construction of railway freight wagons and in the bogies employed therewith, with George Harrison Sheffield. Published 26 November 1903.
21274/1905 Improvements in and connected with railway and like hopper wagons, with George Harrison Sheffield. Published 8 February 1906.
14761/1907 Improvements in and connected with mechanism for operating the sliding doors of self-discharging railway and other wagons, with George Harrison Sheffield. Published 25 June 1908.
18592/1907 Improvements in bogies for railway vehicles, with George Harrison Sheffield. Published  19 December 1907.
5769/1908 Improvements in and relating to the underframes of railway vehicles, with George Harrison Sheffield. Published 3 September 1908.
23520/1908 Improvements in brakes for railway goods wagons and like vehicles, with Robert Craig McKerrow. Published 16 September 1909.
23521/1908 Improvements in balanced drop lights for railway vehicles and like purposes, with Robert Craig McKerrow. Published 2 September 1909.
23522/1908 Improvements in balanced drop lights for railway vehicles and like purposes, with Robert Craig McKerrow. Published 5 August 1909.
23523/1908 Improvements in and connected with sliding doors, with Robert Craig McKerrow. Published 29 April 1909.
23524/1908 Improvements in brakes for railway and like vehicles, with Robert Craig McKerrow. Published 5 August 1909.
13743/1909 Improvements in buffers for rolling stock, with George Harrison Sheffield. Published 13 June 1910.
14147/1909 Improvements in and connected with bogies for rolling stock, with George Harrison Sheffield. Published 10 February 1910.
29522/1909 Improvements in springs and in the manufacture thereof. Published 10 March 1910.
8846/1910. Improvements in axle-box guards for vehicles, with George Harrison Sheffield. Published 24 November 1911.
24965/1911 Improvements in and relating to buffers for rolling stock. Published 3 October 1912.
24966/1911 Improvements in and relating to axle-boxes for rolling stock. Published 24 October 1912.
109,653 Improvements in and/or connected with tipping wagons, with William Hawthorne. Published 20 September 1917.
159,450 Improvements in and relating to the manufacture of volute springs. Published 3 March 1921.
165,162 Improvements in or relating to means for coupling shafts or other rotatable bodies, with  Merz & McLellan. Published 17 June 1921.
177,433 Improvements in or relating to current-collecting shoes, with Hubert Ernest Gaze. Published 30 March 1922.
258,941 Improvements in the construction of bogie trucks for railway and like vehicles, with George Harrison Sheffield. Published 30 September 1926.
259,021 Improvements in the construction of bogie trucks for railway and like vehicles, with George Harrison Sheffield. Published 30 September 1926.
261,987 Improvements in the construction of bogie trucks for railway and like vehicles, with George Harrison Sheffield. Published 2 December 1926.
325,382 Improvements in bogie trucks for railway and like vehicles, with G.H. Sheffield & Company and George Harrison Sheffield. Published 20 February 1930.
384,036 Improvements in bogie trucks for railway and like vehicles, with George Harrison Sheffield. Published 1 December 1932.
370,985 Improvements in flexible couplings for shafts and the like and in applications of the same. Published 15 April 1932.