Clapham Junction lever frame close up
Northern line control room
Connect hand portable
Clapham Junction A line diagram

London Transport Museum Signalling Equipment Restoration Team

Date: Wednesday, 9 December 2020 - 5:30pm. Add this to your calendar.
Venue: Virtual meeting, details to be advised
Speakers: Bill Collins, Mike Crosbie
Registration: Not Required

A brief resume of the work undertaken at the London Transport Museum Acton Depot on London Transport power signalling frames and some ancillary items. The main items worked upon are a ‘B’ style power frame, an ‘N’ style power frame and an ‘N’ style push/pull power frame. Other items are a ‘V’ style interlocking frame, two internally illuminated train describer signs, plus some ancillary items.
The talk will provide some of the issues to be overcome to bring these original items back to life, illustrated by some diagrams and photographs. The team went from 2 to 5 and currently is back to 2. The works began in 2008 and continued until early 2020 when work was stopped due to COVID-19.


Mike Crosbie commenced his LT career in 1964. Mike spent many years in the Signal drawing offices at Earls Court, Acton, Telstar House, Coburg Street and following his retirement went on to work as a consultant. Various work from Signalling to train describers and the computer section occupied Mike during this time.

Bill Collins began his LT career as a Signalling apprentice in 1960 and chose the Power Signal Lineman route into employment rather than the Signal drawing office route. Bill spent several years as an AET before moving into Work Study. A spell working in Hong Kong as a Signal Inspector was followed by many years back in London again working on LT Signalling. A number of promotions into senior management including Senior Project Management followed by a spell in Taiwan as a consultant ensuring Quality Assurance on a new Metro system.