Rolls-Royce Archives
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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).
Request for a push button switch from production for experimental testing on time lag.

Identifier  ExFiles\Box 34\3\  Scan052
Date  12th December 1919
  
X.2641
To By.{R.W. Bailey - Chief Engineer} from EFC.
c. to Mr. Brock.
EFC2/T2.12.19.
X. 2641 - PUSH BUTTON SWITCH.
X 2065
Up to the present we have not had for our own use a push button switch and so far we have not needed this for experimental purposes. Everyone of these which came through our hands for testing was handed back by us. We now, however, have occasion to make certain experiments on the time lag relation of the actuator box and main switch, particularly to observe what this is under the condition in which only the carbons of the push button switch are making contact.
Would you kindly, therefore, let us have a push button switch from production which we can retain indefinitely for our own purposes.
EFC.
  
  


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