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).
The brittleness of fuse holders made from various materials.
| Identifier | ExFiles\Box 24\2\ Scan020 | |
| Date | 15th April 1920 | |
| X.1109 To EFC. from RHC.{R. H. Coverley - Production Engineer} RHC{R. H. Coverley - Production Engineer}8/LG15.4.20. X.1109 RE FUSE HOLDERS IN VARIOUS MATERIALS. X.3962. X.2575 With reference to the above, we hope to hand these Fuse Holders to you in the course of a day or two. We would point out that there are several which are exceedingly brittle and break with just handling. Rob. B. ---------------Brittle. Rob. D.{John DeLooze - Company Secretary} --------------Exceedingly brittle. Isolite.---------------Brittle. Continental Fibre.-------Brittle. RHC.{R. H. Coverley - Production Engineer} | ||