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).
Response concerning the accuracy and intended use of the Simms Magnetic Petrol Gauge, specifically for 'Octroi' purposes in France.
| Identifier | ExFiles\Box 75\2\ scan0148 | |
| Date | 4th June 1920 | |
| To BY.{R.W. Bailey - Chief Engineer} from Da.{Bernard Day - Chassis Design} c. to Hs.{Lord Ernest Hives - Chair} c. to EP.{G. Eric Platford - Chief Quality Engineer} c. to Ms. COPY. X.4159 8.FC E C JUN 26 1920 Da{Bernard Day - Chassis Design}6/CBS/4.6.20. X.4159 RE SIMMS MAGNETIC PETROL GAUGE RECEIVED X.1798 In reply to your BY7/H23.6.20, we never intended these gauges to be used for "Octroi" purpose in France, and very much doubt whether they fulfill the law. We do not expect that they will be sufficiently accurate. We intended them to be an indication to the driver of the amount of petrol in hand, and the fact that they do not read the first two gallons does not appear to be an objection, though they should, of course, read with reasonable accuracy after-wards. The petrol gauge Mr. Royce designed, for instance, takes no notice of the first 1 1/2 gallons in the tank. The information we supplied to Messrs. Simms consisted of an outline of the tank giving outside dimensions, which was what they required, and all that we subsequently did was to provide a scheme shewing how Messrs Simms fittings should be put into our tank, along lines exactly similar to the same gauge on 7.CA and following Messrs. Simms instructions. We therefore must refuse to accept any responsibility for these gauges not reading correctly when they once begin to read. We were asked to recommend a make of gauge which Sales could recommend to customers who insisted on a gauge. Had it been intended to use it for "Octroi" purposes, we think it should have been mentioned at the time, and information as to the law supplied, as it may, and probably will, completely alter our views on the question of this gauge. DA.{Bernard Day - Chassis Design} | ||