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).
Graph illustrating the movement of a pointer and stylus, plotting the graduation of a dial against running time in seconds.

Identifier  ExFiles\Box 113\2\  scan0163
Date  11th November 1930 guessed
  
Acceleration and Braking Recorder. "J.T."
Graduation of dial.
Distance travelled per second from zero.
Maintained position from last measurement of road travelled. Duration one second
Movement of pointer and stylus.
Running time in seconds.
Fig. 1
  
  


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