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 an improved type contact breaker for E.O.6 and R.O.I magnetos to increase durability and reduce noise.
| Identifier | ExFiles\Box 172\3\ img078 | |
| Date | 17th March 1924 | |
| RR 755 (10H) (SL391 2-11-23) MP 281297 STANDARDISATION of CHASSIS PARTS. Description of Parts. IMPROVED TYPE CONTACT BREAKER FOR STANDARD E.O.6. AND R.O.I. MAGNETOS. Origin. Increased durability and reduction of contact breaker noise. Experimental Test Report. This improvement has been standardised by the makers and they state they are prepared to stake their reputation on the efficiency of the device, further, that they are proposing to standardise this contact breaker with duralumin lever on all magnetos for motor-car engines as soon as poss. see attached sheet. Road Test Report. Weight of Old Part. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car. £ None Signature of Mr. De LOOZE that above is correct. WHWDeLooze 5/4/24 SIGNATURES DATE REMARKS MR. JOHNSON 14 May 24 C.Johnson agreed MR. B. JOHNSON 19.3.24 Agreed. FHR. MR. ROYCE 19.3.24 The real value of duralumin as a metal to stand fatigue is not known to me. Mr. Hall might let the designers know his opinion. R.{Sir Henry Royce} MR. WORMALD 18.3.24 Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE 4.4.24 Agreed. Rg.{Mr Rowledge} MR. DAY 19.3.24 Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY 19.3.24 Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD 18.3.24 Agreed, in view of recommendations and present failures. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT 21.3.24 Agreed. E.{Mr Elliott - Chief Engineer} MR. NORTHEY 18.3.24 Agreed. PN.{Mr Northey} MR. HIVES 8.4.24 Agreed. E.Hives Drawing No. Part List A Scrap and replace at all costs, including Chassis already delivered to customers (Struck through) B Scrap and replace on Chassis in works. (Struck through) C Scrap present stock and replace on all Chassis not yet handed to test. (Selected) D Use existing stock Alteration effective on future Chassis Cost of Parts in Works which will be scrapped if commenced on:— Series......... £ ......... Series......... £ ......... | ||