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).
Standardization and operation of the K.S. petrol gauge on the first 50 SS chassis.
| Identifier | ExFiles\Box 44\3\ Scan188 | |
| Date | 1st March 1929 | |
| To BY.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rml./LGl. 3.29. c. to Wor.{Arthur Wormald - General Works Manager} MX.{John H Maddocks - Chief Proving Officer} 74036 c. to Da.{Bernard Day - Chassis Design} K.S. PETROL GAUGE. The K.S. petrol gauge will be standardised on the first 50 SS.{S. Smith} chassis. The form in which this gauge will be fitted is with a triple pipe line and a small auxiliary hand pump. The hand pump and the dash unit will be fitted in any convenient place on the dashboard, the dash unit will not be incorporated in the instrument patch for the first 50 cars as there is not time. The object of the auxiliary hand pump is to make the gauge absolutely reliable. With the ordinary K.S. gauge, if the car is left standing for a month or two in the garage with a tank full of petrol, the gauge reading will fall to zero and when the car is finally taken out, a good deal of running will have to be done before the gauge again reads correctly. With the gauge as we have standardised it, two or three strokes with the hand pump will always ensure an exact reading of the quantity of petrol in the tank. Of course, on an ordinary tour, the gauge will read correctly without the use of the hand pump and will shew a permanent well damped reading of the amount of petrol in the tank and in that way is definitely superior to the Nivex which gives a violently fluctuating reading when the car is running and then only when the hand pump is operated. Again, of course, the Nivex is an exceedingly contd :- | ||