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).
Instruction sheet regarding the performance and accuracy of Elliott ammeters.
| Identifier | ExFiles\Box 168\5\ img028 | |
| Date | 11th September 1925 | |
| RR 300 (20 Bks.) (SK 354 5-12-22) MP 26404 X. 4622 108689 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.T.G. Order No.: Re: J.B.120. Customer's No.: X 4622 Date: 11 - 9 - 1925 Re Elliott Ammeters nos 140999 & 141001. The Elliott ammeters are good & do the job very well except that the scale is not graduated so accurately on the Elliott ammeter. But they are reasonably dead-beat only giving an oscillation before coming to rest. The oscillation of the 'Weston' is 3 1/2 amps whilst that of the Elliott only covers a travel of half an inch. [illegible text] Signed This Sheet must be filed on completion of the work. | ||