1897. Edwards' Air-Pump at the St. Pancreas Electric Lighting Station.
Engine and pump ( original installation and date unknown ) presently at Crossness Pumping Station
and will be operational on compressed air later this year (2017).
of High Bridge Works, Walkergate, Newcastle-on-Tyne.
Engineers, iron and non-ferrous founders.
c.1847 Newcastle Cranage Co commissioned Henry Watson's High Bridge engineering works to construct the hydraulic cranes designed by William Armstrong
By 1862 the range of products included:
- Brass and copper rolls for paper mills.
- Jullion's patent pulp regulating elevator.
- Gun-metal cocks, valves, water and steam gauges, hydraulic rams, etc.
- Large brass castings, brass and copper work for marine, locomotive, and other engines.
- Safety lamps
- Sir William Armstrong's hydro-electric machines, for the production of electricity from steam.
- Frames of brass or wood, with brass mountings, made to order.
c.1896 Torben Christian Billetop joined the company and subsquently became MD
1910 Supplied the direct-driven circulating pump for tug boats built by Cox and Co, of Falmouth. 
1912 Ernest Theodore White and Reginald Christie retired from the firm which was continued by the remaining partners Henry Burnett Watson and John Stanley Watson
Post-WWI: Watsons launched a 3.5-4.5 ton bonneted truck with a four-cylinder engine; the engine and the gearbox were mounted in a subframe.
They built the British Berma bus.
1925 The Brass Foundry was able to cast large solid manganese bronze propellers; the Iron Foundry was mainly making cylinders for motors; the Machine Shop made a varied products, including marine auxiliary machinery, such as pumps, condensers, evaporators, heaters and coolers.
Sources of Information
- ↑ Biography of William Armstrong, ODNB
- ↑ 1862 London Exhibition
- ↑ The Engineer 1910/02/25
- ↑ London Gazette 23 April 1912
- Ian Allan - British Buses Since 1900 - Aldridge and Morris