From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Article from 'The Autocar' magazine detailing permanently fitted jacking systems and new types available.
| Identifier | ExFiles\Box 139\2\ scan0059 | |
| Date | 9th March 1934 | |
| 382 The Autocar, March 9th, 1934. Special brackets are made for the D.W.S. jack in order not to affect ground clearance. JACKING The Permanently Fitted Jacking Systems Some New Types By J.{Mr Johnson W.M.} F.{Mr Friese} THE dance is some miles away and you set off after dinner, thankful that your car is a saloon, and a warm one at that. The head lights of oncoming cars glisten on the raindrops which fall towards the windscreen. About a mile from your destination you pass a car halted by the roadside, and as you swish past you catch a glimpse of two figures struggling to change a wheel. "Poor things! A puncture—and on a night like this!" You hurry by, preferring to forget their discomfort; they were in dinner jackets too. But it always happens on a wet night, or when you are in a particular hurry. A puncture is always inconvenient. I expect you remember only too well what happens. Suddenly the car feels unsteady at the back. You get out and find that a tyre is flat. Then the fun begins. Where is the jack? Under the seat in the tool kit. Out piles everybody. Where is the wheel brace? Where is the jack handle? Even when everything has been found the battle has only just begun. There is the delightful task of dismantling the magna hub cap. Then the only way to discover where to place the jack is to kneel down in the road. You kneel in a puddle. When everything is assembled it is a backaching job to jack up the car, and at night the situation loses any vestige of humour that it may possess during the daytime, and becomes just thoroughly unpleasant. (Below) D.W.S. jack as fitted to a back axle. The separate telescopic handle has a detachable cross-piece. Simplifying the Task Now, if your car were fitted with one or other of the jacks illustrated here it would be jacked up in a very short time, without any crawling about the highway. "If ifs and ans were pots and pans . . . ," you say, but it is not beyond you to fit one of them to your car. Below are described all the permanently fitted jacking systems which are available in this country, and also those which are likely to be marketed in the near future. Permanent jacks are bound to be a standard feature of future cars. You may not need them often, owing to the (Left) The Jackall system has four hydraulically operated jacks clamped to the axles. (Above) Showing the compact D.W.S. jack and its worm drive gear box. Illustration Labels: to GEAR BOX SAFETY CLIP BALL RACE PINION WORM WHEEL to OPERATING HANDLE The Stevenson Outrigger jack when the car has been raised. A 16 | ||