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).
Request to order Osram bulbs and Ever Ready batteries for aero temperature warning devices.
| Identifier | ExFiles\Box 63\1\ scan0237 | |
| Date | 1st January 1932 | |
| X3035. Roy.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Wst. c. Lr.{Mr Ellor} c. RHC{R. H. Coverley - Production Engineer}/CEP. Hs{Lord Ernest Hives - Chair}/Wst.1/AD7.1.32. AERO TEMPERATURE WARNING DEVICES Will you please order for the above 24 units now being made up in the experimental shop, 30 2.5 volt .2 ampere Osram flashlight bulbs as shown in G.E.C. catalogue. Will you also please order for us, 24 3-volt dry batteries as per sample you obtained for us from Messrs. Lucas which we have been using for this job. It has occurred to us that a very reliable battery of this type could be obtained from the Ever Ready Co., and if they can supply a battery of similar dimensions and type we suggest obtaining them from this Co. The weight of the battery is 10 1/4 ozs. Hs{Lord Ernest Hives - Chair}/Wst. | ||