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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 proposal for coarser pitch rear axle gears to enable quieter production.

Identifier  ExFiles\Box 172\1\  img034
Date  23th May 1923
  
R.R. 785 (5 H) (S.J. 99), 10-10-21. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3057.
ORIGINAL
COMPLETED 20.6.23
STANDARDISATION OF CHASSIS PARTS.
Date 23.5.23
X No.4424
Drawing No.
Part List
Description of Parts.
COARSER PITCH REAR AXLE GEARS.
Origin.
To enable quiet axles to be produced more easily.
Experimental Test Report.
The ratios have been altered from -
14 X 60 and 13 X 60 to
11 X 50 and 12 X 50.
The gears have been altered from 6 to 5 pitch.
Road Test Report.
Run 10,060 miles on 7-G-11 - no trouble.
A number of sets now been fitted on production cars.
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:- NO SCRAP
Series......... £.........
Series......... £.........
Series......... £.........
Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives.
Weight of Old Part.
Cost of Old Part. £ -----
Weight of New Part.
Cost of New Part. £ -----
Difference per Car.
Difference per Car. probable saving £4. 9. 0 on axle quietening.
Storekeeper advised re above:
Storekeeper's Signature
Signature of Mr. De LOOSE that above is correct. My/JW 4.6.23
SIGNATURES
DATE
REMARKS
Mr. JOHNSON / M.{Mr Moon / Mr Moore} D.{John DeLooze - Company Secretary} Johnson. 5.6.23 C. Johnson. Agreed.
5.6.23 B. J.{Mr Johnson W.M.} Agreed.
Mr. ROYCE 19.6.23 Agreed byago.
Mr. WORMALD 23.5.23 Agreed - most important. Wor.{Arthur Wormald - General Works Manager}
Mr. ROWLEDGE 26.5.23 Agreed. Rg.{Mr Rowledge}
Mr. DAY 24.5.23 Agreed. Da.{Bernard Day - Chassis Design}
Mr. BAILEY 28.5.23 Agreed. BY.{R.W. Bailey - Chief Engineer}
Mr. PLATFORD 25.5.23 Agreed. EP.{G. Eric Platford - Chief Quality Engineer}
Mr. NORTHEY 24.5.23 Agreed. PN.{Mr Northey}
  
  


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