Flaman Speed Indicator and Recorder [SEP] named after
Flaman Speed Indicator and Recorder
The Flaman Speed Indicator and Recorder was a device patented in 1901 by Nicolas Charles Eugène Flaman of France for indicating the current speed of a vehicle (for example a railway locomotive) and recording it on a paper tape that could be unrolled and examined at the end of a run to provide evidence of the speeds attained on the journey.
Design features.
The paper tape recording was driven directly by the wheels of the locomotive, with the paper spool moving at a fixed rate per kilometre
1840 experiments for the Great Western Railway using self-inking pens on paper rolls carried on dynamometer cars. No action seems to have been taken in either case. The earliest event recorders were the mechanical "TEL" speed recorders of 1891, which recorded both time and speed. The TEL's manufacturer, Hasler Rail of Switzerland, remains a leading producer of train event recorders.
France developed the Flaman Speed Indicator and Recorder. In Germany, the Indusi train protection system had included recording equipment from early on using a ticker