Mechanical SignallingCollis Engineering Ltd still manufactures mechanical upper quadrant semaphore signals for the UK market. These signals operate in the exact same way such structures have for decades but are now updated to take account of modern health and safety standards. Each individual signal arm is supplied with a maintenance platform.The Collis Engineering Ltd standard upper quadrant semaphore signal is supplied complete with a ladder top safety chain, an adjustable bottom bracket giving +/- 75mm of vertical adjustment, a signal ID plate, diamond sign, 1 No BRS-SM21/2 medium weight and a standard sized signal arm. The structure will conform to the latest Network Rail, HSE and HMRI standards. Foundation bolts are available as an option. Typically, all mechanical signals are supplied hot-dip galvanised only with no additional paint finish although this can be requested as an option. Recent mechanical signal installations have occurred at Bedlington, Lincoln, Immingham, Plymouth, Kilkerran, New Cumnock, and other locations in the UK. |
