Siemens Brothers Dynamo Works
Siemens Brothers Dynamo Works Ltd of 14 Bridge Road, Stockton; Lichfield Road, Stafford (from 1903); and Caxton House, Westminster, London, SW.
1906 The electric light, power and traction activity of Siemens Brothers and Co were separated from the rest of the business and transferred to Siemens Brothers Dynamo Works which was incorporated as a limited company.
First British manufacturer of Tantalum filament lamps.
1911 Electrical Exhibition. Electrical synchronising outfit. (Siemens Brothers) [1]
1914 Dynamo manufacturers. [2]
1914 Manufacturers of and dealers in electric motors and generators, starters, regulators and controllers for direct and alternating current; switchboards and switchgear of all descriptions; machinery for mines, haulage gear, fans and ventilators, equipment for rolling mills and steel and iron works; electric railways and tramways, electric power transmission, searchlight projectors, lighting and power equipments for ships, machine tools, textile motors and electrical accessories. [3]
c1919 Stafford Dynamo works was sold to English Electric Co; electric lamp manufacture transferred to Siemens Brothers and Co.
c.1923 The business was renamed Caxton Electric Developments Ltd; the capital continued to be held by Siemens Brothers and Co[4]
- Dynamo: Exhibit at Nottingham Industrial Museum. Of London and Stafford. Driven by a BTR Industries' belt (?).
Electrification using the new 1500V DC overhead system began in 1914. The first stage opened on 1st July 1915, and the entire line was operational by 10th January 1916. Instead of being particularly innovative, the infrastructure was designed with simplicity and economy in mind. Luckily the public power system was sufficiently developed that it could supply the power. In fact, the power company contracted to supply the sub-stations as well as the actual traction current.
Ten freight 0-4+4-0 (Bo-Bo) locomotives (Nos. 3-12) were built between 1914 and 1919. Nine were actually completed by December 1914, but the tenth (No. 12) stood on a siding lacking both motors and pantographs until December 1919.
The locomotives were designed by Raven and built by Darlington Works. Electrical equipment was supplied by Siemens Bros. With four 275hp motors, the new locomotives were considerably more powerful than the existing Nos. 1&2 (LNER Class ES1). The new locomotives were designed to start a 1,400 ton train and haul it on the level at a minimum speed of 25mph.
See Also
- Cambrian Collieries for images of their installation in 1907.
Sources of Information
- ↑ The Engineer 1911/09/29 p329
- ↑ Kelly's Directory of Durham, 1914 p659
- ↑ 1914 Whitakers Red Book
- ↑ The Times (London, England), Wednesday, May 21, 1924
- [1] LNER info