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).
Requesting the procurement of hydrometers for testing accumulator acid and petrol.
| Identifier | ExFiles\Box 34\4\ Scan032 | |
| Date | 26th August 1918 | |
| X.3035 To Miss. Williamson C.O. from EH. EHD/LG26.8.18. 26th. Aug. 1918. Will you kindly write to J.{Mr Johnson W.M.} Woolley & Co. Ltd., Manchester, and ask them if they can supply a Hydrometer for testing acid in accumulators. We require the type on which, by means of a rubber bulb, a small quantity of acid is drawn out of the battery to a glass tube which gives a direct reading. We also require 2 Hydrometers - U.2558 with scale reading from .7 to 1.00 - these are for testing petrol. I/M 735 EH. | ||