Rolls-Royce Archives
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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 battery ignition contact breaker rubbing block made of bone grey fibre.

Identifier  ExFiles\Box 172\3\  img083
Date  21th July 1925
  
COMPLETED 14.8.25
STANDARDISATION of CHASSIS PARTS.
Date 21.7.25
X No. 4646
Description of Parts. BATTERY IGNITION CONTACT BREAKER RUBBING BLOCK OF BONE GREY FIBRE.
Origin. To lessen wear.
Experimental Test Report.
Bone grey fibre is being used by a large number of makers for a rubbing material. There is less wear compared with continental bakelite when run short of oil.
See EFC3/T1.7.25.
Road Test Report.
Run 12,239 miles on 6-G-11.
Run 11,122 miles on 5-EX.
No trouble - wear negligible.
[Decision Box C is ticked]
C Scrap present stock and replace on all Chassis not yet handed to test.
Weight of Old Part.
Cost of Old Part. £
Weight of New Part.
Cost of New Part. £
Difference per Car.
Difference per Car. £ Negligible.
Signature of Mr. De LOOZE that above is correct. MV/Rms. 24.7.25.
SIGNATURES | DATE | REMARKS
MR. JOHNSON | 13.8.25 | Agreed. C.Johnson.
MR. B. JOHNSON | 11.8.25 | Agreed. B.J.
MR. ROYCE | 24/7/25 | Agreed FHR
MR. WORMALD | 21.7.25 | Agreed. Wor.{Arthur Wormald - General Works Manager}
MR. ROWLEDGE | 21.7.25 | Agreed. Rg.{Mr Rowledge}
MR. DAY | 22.7.25 | Agreed. Da.{Bernard Day - Chassis Design}
MR. BAILEY | 22.7.25 | Agreed. BY.{R.W. Bailey - Chief Engineer}
MR. PLATFORD | 21.7.25 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer}
MR. ELLIOTT | 26/7/28 | Agreed CE
MR. NORTHEY | 23.7.25 | Agreed. PN.{Mr Northey}
MR. HIVES | 24.7.25 | Agreed. E.Hives.
[Circular Stamp] ACTION ON CHASSIS
  
  


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