British Transport Films produced a 13 minute long staff instructional
film (permanent way series) entitled "The Hallade Track Recorder" in 1951.
The BTF catalogue entry for this film tells us...
"A film to tell gangers and lengthmen how the Hallade Track Recorder
makes a continuous record of the movements of a train during a journey
and so shows up the good and bad places in the track. Hallade records
are of value to all permanent-way men because they help in the detection
of track faults."
I hope this of interest
Nick Wheat
webmaster : http://www.britishtransportfilms.co.uk
--
Geoff Bagley wrote:
>
> In 1946, the LMSR published a booklet entitled the "Hallade Handbook -
> Theory and Design". This is said to describe the work of a Mr. Shortt,
> and enables curved track to be realigned by the method of "moments".
>
> Today, commercial software is available for the same purpose bearing the
> brand name Hallade. There is also a Hallade recorder for track defects
> in the railway museum of Mulhouse in France.
>
> Can anyone please supply any biographical information on Mr. Shortt ?
> In particular, is he perhaps the same person who invented the Shortt
> Clock ?
>
> Any info appreciated.
>
> TIA
> --
> Geoff Bagley
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