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).
Principle of drip plug selection for the centralised chassis lubrication system.
| Identifier | WestWitteringFiles\R\October1927-December1927\ Scan063 | |
| Date | 27th October 1927 | |
| ORIGINAL BY FROM DA.{Bernard Day - Chassis Design} C. to - HS.{Lord Ernest Hives - Chair} CENTRALISED CHASSIS LUBRICATION DA{Bernard Day - Chassis Design}1/M27.10.27. X3806 With reference to OY's letters - OY3-R-10827., and OY3-R10627., and the new recommendation for drip plugs, the principle we had in mind that Mr. Bijur himself agreed to to a great extent was that the drip plugs should be on the small side where there was any doubt, so that if it was found that insufficient oil was reaching a particular part they could be increased. If we start with a large number of large drip plugs we are liable to get a considerable pressure drop in the line, and this may give us a bad impression of the system. This however is the general principle, and we do not say that OY's recommendations are not well within this principle. In any case as you have a variety of drip plugs you will be able to effect changes as the experiment progresses. We believe that it will be fairly easy during the course of the experiment to detect whether a bearing is getting an excessive amount of oil, or appears to be under lubricated. DA.{Bernard Day - Chassis Design} | ||