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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).
Box type rear number plates, ignition distributors, shock dampers, and a dynamo.

Identifier  ExFiles\Box 167\1\  img302
Date  15th December 1938 guessed
  
-5-

BOX TYPE REAR NUMBER PLATES.

Present price ......................... 19s. 6d.
Can be purchased for ................ 17s. 0d.

A new method of providing a registration number was demonstrated, it being a sheet of glass, black enamelled, and the surface sand-blasted through stencils to provide a matt surface to the glass where the numeral had been removed.
The registration number of the car fitted with the box type number plate is to be given, and a sample provided.

IGNITION DISTRIBUTORS. (Rm{William Robotham - Chief Engineer}/RC{R. Childs} present). A sample 6-cylinder distributor with micro adjustment and vacuum control has been left with us for examination.
Mr. Lucas said that their investigations with .040 plug gaps had failed to indicate the need for such large plug gaps. There seems to be no point in increasing upon the .030.

A recommended type of cam lubrication was asked for, and this information will be supplied.

The new governor mechanism is well advanced now, after three years development, and will be supplied to us as required for the new R.R. distributor.

The complications provided by twin contact breakers was thought to be detrimental in the interests of simplicity and maintenance, and revision to single fingers is being made.

7000 engine revs. was suggested as being possible with the single finger contact breaker. It was not very clearly indicated whether this was on a 2, 4, or 6 cylinder engine.

The price of distributors was left in abeyance since Mr. Lucas did not wish to commit himself to any figures unless he knew that we definitely meant quantities of ignition coils and distributors.

SHOCK DAMPERS. W.9010/1810.

Non-adjustable. Price .............£1. 7. 6d. per pair.

R.R. 36 SLOT DYNAMO. Mr. Lucas reminded me that he had not yet received the model for examination, and this I have promised to send when production can spare one.

-Contd-
  
  


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