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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).
Letter from F. Dallin Paul regarding the features, cost, and licensing of 'The Auto Cutout' ignition switch.

Identifier  ExFiles\Box 113\3\  scan0103
Date  16th April 1938
  
TELEPHONE:- GERRARD-3766..
Western 8854
F.{Mr Friese} DALLIN PAUL
43, OXFORD STREET, W.1.
(Car Park-Soho Square).

16th April 1938

AUTO CUTOUTS, etc.

Messrs Rolls Royce Ltd.,
Derby.

The Auto Cutout

Dear Sirs,

I wish to draw your attention to the description of The Auto Cutout which appears on page 142 of this month's issue of The Automobile Engineer. During the development of this automatically operated ignition switch intended for complete replacement of oil gauges and warning lights it was shown to your Mr Leslie.

I now have the pleasure to draw your attention to the following additional points:-

1. The development of the simple three-point switch as mentioned by The Automobile Engineer in their penultimate paragraph renders The Auto Cutout less drastic in action until the oil pressure failure is critical.

2. The manufactured cost of the main essential parts of an Auto Cutout done in lots of 40000, including tool costs but excluding assembly, have been quoted at less than 1/-. In plastics the cost should be substantially lower. Competition with oil gauges is thus assured.

3. The simple form of 'RL' Cutout as described in the enclosed pamphlet is proving very acceptable to the public and purchasers transfer them from car to car.

4. The American Patent Application is to be allowed with 19 claims. A similar result is expected with the British case.

5. At the request of G.M.C. and Vauxhall a quotation of desired royalties for a manufacturing licence has been submitted and in addition a figure of approximately £500 (five hundred pounds) per annum for one or two years exclusive licence has been quoted. This same figure of approximately £500 is hereby offered to you for a similar exclusive licence subject to certain conditions.

In view of the above I shall be pleased to attend to your enquiries.

Yours faithfully,

Dallin Paul
  
  


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