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, replacing screws and ferrules with rivetted plates on fabric couplings.
| Identifier | ExFiles\Box 15\4\ Scan069 | |
| Date | 22th May 1930 | |
| RR 785 REVISED (10M) (DG 348 19-7-29) BM. 6/643. D305 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 of the screws and ferrules on P.11. Our rig tests show 100% improvement in life if the rivetting is carried out properly. Road Test Report. We have run three or four 10,000 mile tests on rivetted couplings. Coupling reported in good condition after 5,000 miles on 23-EX. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £0-9-1 Cost of New Part. £0-1-8 Difference per Car. £0-7-5 Decrease Signature from Cost Dept. that above is correct. GRR 11/6/30 AHS 18/6/30 [Right Column] X No. 7305. 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 :- Series.........£......... Series.........£......... Series.........£......... [Approval Table] INITIAL | DATE | REMARKS BJ. SS.{S. Smith} | 28-6-30 | Agreed BJ. R.{Sir Henry Royce} | 25.5.30 | Agreed FHR. WOR.{Arthur Wormald - General Works Manager} | 24.5.30 | Agreed Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 25.5.30 | 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. [Stamps] Large stamp: ACTION Circular Stamp: RECEIVED 19 JUN 1930 | ||