Safety first
Page 46

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A safety rail Which is raised using a compressed air ram has been developed for road tanker walkways by Progressive Engineering.
An air reservoir contains enough air for 15 operations _ and allows a semi-trailer, for example, to be independent from its tractive unit. Recharging is carried out using the tractive-unit compressor.
The rail can be interlocked to prevent the vehicle being started while the rail is erected. The lever which activates the rail effectively prevents access to the walkway unless the rail is in the upright position.
The safety rail weighs 1.5kg (3.251b) per foot run.
Made by : Progressive Engineering (A-U-L) Ltd, Clarke Street, Ashton-underLyne, Lancs.