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).
Standardisation of coarser pitch rear axle gears to enable quieter axle production.
| Identifier | ExFiles\Box 6\4\ 04-page007 | |
| Date | 23th May 1923 | |
| STANDARDISATION of CHASSIS PARTS. Description of Parts. COARSER PITCH REAR AXLE GEARS. Origin. To enable quiet axles to be produced more easily. Experimental Test Report. The ratios have been altered from - 14 X 60 and 13 X 60 to 11 X 60 and 12 X 50. The gears have been altered from 6 to 5 pitch. Road Test Report. Run 10,060 miles on 7-G-11 - no trouble. Number of sets now been fitted on production cars. Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives. Weight of Old Part. Cost of Old Part. £ ----- Weight of New Part. Cost of New Part. £ ----- Difference per Car. Difference per Car. £4. 9. 0 probable saving on axle quietening. Signature of Mr. De LOOSE that above is correct. My/JW 4.6.23 SIGNATURES: Mr. JOHNSON, DATE: 5.6.23, REMARKS: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Johnson agreed Mr. ROYCE, DATE: 19.6.23, REMARKS: Agreed long ago. FHR. Mr. WORMALD, DATE: 23.5.23, REMARKS: Agreed, most important. Wor.{Arthur Wormald - General Works Manager} Mr. ROWLEDGE, DATE: 26.5.23, REMARKS: Agreed. Rg.{Mr Rowledge} Mr. DAY, DATE: 24.5.23, REMARKS: Agreed. Da.{Bernard Day - Chassis Design} Mr. BAILEY, DATE: 28.5.23, REMARKS: Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. PLATFORD, DATE: 25.5.23, REMARKS: Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. NORTHEY, DATE: 24.5.23, REMARKS: Agreed. PN.{Mr Northey} RIGHT HAND SIDE BOXES: Drawing No. Part List A Scrap and replace at all costs, including Chassis already delivered to customers. B Scrap and replace on Chassis in works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Cost of Parts in Works which will be scrapped if commenced on:- No SCRAP. | ||