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 a dynamo cut-out with double contacts for the Phantom III, to reduce volt-drop and overheating.
| Identifier | ExFiles\Box 171\2\ img256 | |
| Date | 15th January 1937 | |
| RR 755 (5H) 20396 21/7/36 J.W.S. COMPLETED 1.2.37. PHANTOM III. STANDARDISATION of PARTS Date 15.1.37. No. 6142 Drawing No. Part List Description of Parts. DYNAMO CUT-OUT WITH DOUBLE CONTACTS TO R.R.SCH.845 & 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 necessary 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. MATERIAL £ s. d LABOUR £ s. d CHARGES £ s. d TOTAL £ s. d Cost of Old Part 1 1 7 1 0 2 8 Cost of New Part 2 7 8 1 2 4 5 Nett Increase 1 9 Signature from Cost Dept. that above is correct. O/Bb. 11.1.37. INITIAL DATE REMARKS SG.{Arthur F. Sidgreaves - MD} 29.1.36. 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 D.{John DeLooze - Company Secretary} By.{R.W. Bailey - Chief Engineer} 18.1.37. Agreed By.{R.W. Bailey - Chief Engineer} E.P. 1.1.37. Agreed EP.{G. Eric Platford - Chief Quality Engineer} SFT.{Mr Swift} 19.1.37. Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} 19.1.37. Agreed Mx.{John H Maddocks - Chief Proving Officer} MS. Hs.{Lord Ernest Hives - Chair} 15.1.37. Agreed Hs.{Lord Ernest Hives - Chair} DMR 23.1.37. Agreed DMR. | ||