W & J Riding Ltd Longridge Preston

John West:

moomooland:

Punchy Dan:
COL628V ? is fleet number 14 , DWN483V is 53.

0 Seddon Atkinson 400 Series 4x2 tractor unit Reg No COL 628V Fleet No 14 ‘Iron Duke’ was powered by a ■■■■■■■ E290 engine.
It was originally a day cab which was registered new to the Dunlop Company on the 13th of August 1979 who used it as a mobile test outfit to gain experience with their Maxaret anti jack knife braking system.

I’m surprised that they were investigating anti jacknife systems in the late seventies.

Seem to remember loads of adverts for the Davies anti jacknife system (? Could be completely wrong with that name) in the late sixties, early seventies. Foot on the brake put a lock on the fifth wheel pin iirc. However by then they had figured out that easing the power of the front brakes stopped the drive axle lifting, which was called balanced braking.

I bought a Mastiff in 1969. No anti jacknife system, but balanced braking. I drove many trucks over the next 13 or so years and never had a jacknife problem. The balanced braking seemed to have cured it.

Maybe someone will correct me here, but that’s how I remember it.
John

Hiya,
I seem to remember the Headlight magazine always carried an advert
for the “Hope anti jacknife system” this would be the 60s.
thanks harry, long retired.