Standardisation of a Dynamo Cut-out with Double Contacts to reduce volt-drop and overheating.
| Identifier | ExFiles\Box 168a\3\ img337 | |
| Date | 15th January 1937 | |
| COMPLETED 1.2.37. 25/30 H.P. STANDARDISATION of PARTS Description of Parts. DYNAMO CUT-OUT WITH DOUBLE CONTACTS TO R.R.SCH.549 & SPRINGS D.54809. Origin. To reduce volt-drop and overheating of cut-out. Report of Experimental Test. With ventilated dynamos heavy currents can be taken without distress but it is neccessary to fit double contacts on the cut-out to deal with the extra load. Three cut-outs modified have run :- 14,000 miles on Ph.III chassis 32-EX. 13,000 " " " 36-EX. COST TABLE: Cost of Old Part: MATERIAL £- s.1 d.1, LABOUR £- s.7 d. {John DeLooze - Company Secretary} -, CHARGES £- s.10 d. {John DeLooze - Company Secretary} -, TOTAL £- s.2 d.8 Cost of New Part: MATERIAL £- s.2 d.7, LABOUR £- s.8 d. {John DeLooze - Company Secretary} -, CHARGES £- s.1 d.2, TOTAL £- s.4 d.5 Nett Increase: £- s.1 d.9 Signature from Cost Dept. that above is correct. G A L 11.1.37. APPROVALS: INITIAL | DATE | REMARKS SG. {Arthur F. Sidgreaves - MD} | 29-1-37 | Agreed SG {Arthur F. Sidgreaves - MD} WGR. Hs. {Lord Ernest Hives - Chair} | | Agreed Hs. {Lord Ernest Hives - Chair} C. | 18.1.37. | Agreed C. E. {Mr Elliott - Chief Engineer} | 19.1.37. | Agreed E. {Mr Elliott - Chief Engineer} DA. {Bernard Day - Chassis Design} | 16.1.37. | Agreed Da. {Bernard Day - Chassis Design} By. {R.W. Bailey - Chief Engineer} | 18.1.37. | Agreed By. {R.W. Bailey - Chief Engineer} E.P. | 16.1.36. | Agreed EP. {G. Eric Platford - Chief Quality Engineer} Failure on 21-G-IV rather shows this necessary. Suggest fix above to try out. SFT. {Mr Swift} | 16.1.37. | Agreed Sft. {Mr Swift} MX. {John H Maddocks - Chief Proving Officer} | 16.1.37. | Agreed Mx. {John H Maddocks - Chief Proving Officer} Hs. {Lord Ernest Hives - Chair} Rm {William Robotham - Chief Engineer} | | RHC. {R. H. Coverley - Production Engineer} | 23.1.37. | Agreed RHC. {R. H. Coverley - Production Engineer} | ||
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).