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).
Technical drawing for an Intermediate Pinion for a Reverse Counter.
| Identifier | ExFiles\Box 33\5\ Scan076 | |
| Date | 12th November 1926 | |
| Nº OF TEETH: 13 PITCH DIA: .650 D.P.: 20 OBLIQUITY: 20° TYPE OF TOOTH: FELLOW'S CHORDAL THICKNESS: .076 .375 +0 -10 .250 +0 -10 .050 RAD: +10 -10 .400 DIA: +0 -10 .250 DIA: +0 -10 .750 DIA: -2 INTERMEDIATE PINION REV: COUNTER SCALE 2/1 S/N 206 12/11/26 | ||