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 chassis parts, specifically replacing screws and ferrules on fabric couplings with rivetted plates.
| Identifier | ExFiles\Box 171\1\ img193 | |
| Date | 22th May 1930 | |
| RR 755 REVISED (10H) (DG 348 19-7-29) SM. 5/543. COMPLETED 4.7.30. STANDARDISATION of CHASSIS PARTS. Description of Parts: FABRIC COUPLINGS WITH PLATES RIVETTED ON INSTEAD OF SCREWS AND FERRULES. Origin: To improve the life of the coupling. Experimental Test Report: We have had a number of failures on the screws and ferrules on all. Our rig tests show 50% improvement in life if the riveting is carried out properly. Road Test Report: We have had three or four 10,000 mile tests on rivetted couplings. 23-EX 5,000 miles reports coupling in good condition. Box A (Marked with 'X'): Scrap and replace at all costs, including Chassis already delivered to Customers. Box B: Scrap and replace on Chassis in Works. Box C: Scrap present stock and replace on all Chassis not yet handed to test. Box D: Use existing stock Alteration effective on future Chassis. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ - s. 8 d.{John DeLooze - Company Secretary} 14. Cost of New Part. £ - s. 1 d.{John DeLooze - Company Secretary} 8d. Wor.{Arthur Wormald - General Works Manager} Agreed. Difference per Car. £ - s. 7. d.{John DeLooze - Company Secretary} 5d. decrease. Signature from Cost Dept. that above is correct. C.W.B. 17.6.30 & 18.6.30 Cost of Parts in Works which will be scrapped if commenced on:- Series…...£…... Series…...£…... Series…...£…... APPROVALS TABLE: INITIAL | DATE | REMARKS BJ. SS.{S. Smith} | 28.6.30 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 23.5.30 | 25/- Agreed JHR WOR.{Arthur Wormald - General Works Manager} | 24.5.30 | Agreed Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 23.5.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 26.5.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 26.5.30 | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 26.5.30 | Agreed. Find plates become loose in service. In one case (Paris), nut came off and damaged case. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 27.5.30 | Agreed E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | 26.5.30 | Agreed PN.{Mr Northey} CWB. | 24.5.30 | Agreed C. HS.{Lord Ernest Hives - Chair} | | Agreed. | ||