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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 steering worm and nut with .940' lead to improve existing steering.

Identifier  ExFiles\Box 67\4\  scan0122
Date  4th June 1926
  
RR 755 (10H) (DB{Donald Bastow - Suspensions}130 12-9-24) MS 301225
STANDARDISATION of CHASSIS PARTS.
COMPLETED 14.6.26
Date 4.6.26
No. 8430
Description of Parts: STEERING WORM AND NUT WITH .940" LEAD.
Origin: To improve existing steerings.
Drawing No.
Part List: 12
Experimental Test Report:
The .940" worm and nut will fit into existing steerings. It is intended to fit these on to existing cars which are complained of.
Road Test Report:
Tests carried out in France by PN{Mr Northey}, CWB, and Hs{Lord Ernest Hives - Chair}, proved this modification to be an advantage.
[Stamp over reports: F.H.R.]
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 rest.
D Use existing stock Alteration effective on future Chassis.
Weight of Old Part.
Weight of New Part.
Difference per Car.
Cost of Old Part.
Cost of New Part.
Difference per Car. If changeover made at Works. £ 12. 12. 0
Cost of Parts in Works which will be scrapped if commenced on:-
Series.........£.......
Series.........£.......
Series.........£.......
Signature of Mr. De LOOZE that above is correct. My/Rb.{R. Bowen} 9.6.26
SIGNATURES | DATE | REMARKS
MR. JOHNSON C.W.B. | 9.6.26 | Agreed. CWB.
MR. B. JOHNSON | 14.6.26 | agreed
MR. ROYCE | 9.6.26 | Agreed. FHR. | To overcome complaints, but not on non-complaint cars
MR. WORMALD | 4.6.26 | Agreed. Wor.{Arthur Wormald - General Works Manager}
MR. ROWLEDGE | 8.6.26 | Agreed. Rg.{Mr Rowledge}
MR. DAY | 7.6.26 | Agreed. Da.{Bernard Day - Chassis Design}
MR. BAILEY | 7.6.26 | Agreed. BY.{R.W. Bailey - Chief Engineer}
MR. PLATFORD | 8.6.26 | Agreed - in view of road test report. Should like to try this and weaker tube springs as soon as possible. EP.{G. Eric Platford - Chief Quality Engineer}
MR. ELLIOTT | 9.6.26 | Agreed. E.{Mr Elliott - Chief Engineer}
MR. NORTHEY | 7.6.26 | Agreed. PN.{Mr Northey}
MR. HIVES | 4.6.26 | Agreed. E.Hives.
  
  


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