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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).
Meeting notes discussing design adjustments for various automotive components, including those for Bentley models.

Identifier  ExFiles\Box 30\1\  Scan035
Date  2nd September 1934 guessed
  
- 7 -

Adjustable Brake Ropes.
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After considerable discussion Design Department agreed to issue a design which will provide a works adjustment for the length of brake ropes. It was agreed that this was very badly needed.

Side Steering Tube.
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GWH.{George W. Hancock - Head Chateauroux} explained that on 21-G-IV the side steering tube springs were arranged in such a way that they could come choc-o-bloc under load. This was not a design feature and he agreed to investigate further.

Radiator Overflow Pipes.
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GWR. asked if the radiator overflow pipe outlets could be modified to face forward as on the Bentley. This he explained is a very great help in retaining water in the radiator. It was agreed that this should be looked into.

Exhaust Manifold.
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With regard to stretching of exhaust manifold studs, E.{Mr Elliott - Chief Engineer} explained that austinetic steel studs would be instructed for the next test in order to overcome this trouble. The cracking of the manifold could be best overcome by a design incorporating air cooling fins on similar lines to the early 20-HP. manifold which was designed for a similar purpose and which has proved to be very satisfactory.

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BENTLEY.
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Agreements were reached on the following points:-

Aerolite Pistons.
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It was recommended that these come on production as circumstances permit but they are to be made in the alloy used by the Aerolite Co. which is a high copper alloy and not in RR.53.
  
  


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