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).
Instructions detailing specifications for the armature circuit, commutator, and brushes.
| Identifier | ExFiles\Box 36\4\ scan 084 | |
| Date | 19th July 1920 | |
| RG{Mr Rowledge} 300 (120B) (SF 349 24-1-19) MP 200552 91134 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C Order No P.A.2. Customer's No. Re X 3014b Date: July. 19th. 1920 Armature Circuit (Cont'd.{John DeLooze - Company Secretary}) clamps, and on the shaft under the end-connections, consists of presspahn .035" thick. in the former case, and 3 layers of black tape and 1 layer empire tape in the latter. Commutator and brushes Diameter of com. - 2 inches. Length " " = 1.625 inches. There are four brushes in sets of two. Each brush is approx. .6" x .3", a contact area of .118 sq.ins. or .316 sq.ins. Signed Cont'd.{John DeLooze - Company Secretary} This Sheet must be filed on completion of the work. | ||