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 a Driving Pinion, revision Counter.
| Identifier | ExFiles\Box 33\5\ Scan075 | |
| Date | 12th January 1926 | |
| Nº OF TEETH: 22. PITCH DIA: 1.100 D.P.: 20 OBLIQUITY: 20° TYPE OF TOOTH: FELLOW'S CHORDAL THICKNESS: .076 .250 +0 -10 .075 +0 -10 .050 RAD. +0 -10 .800 DIA: +00 +1 .450 DIA: +00 +1 .250 DIA: +0 -2 1.200 DIA: +0 -2 .075 RAD: +10 -10 .375 +0 -10 DRIVING PINION REV: COUNTER. SCALE 1/1 S/N 206 | ||