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Caprotti Valve Gears Ltd
The Caprotti valve gear is a type of steam engine valve gear invented by Italian architect and engineer Arturo Caprotti.
1936 It was announced that the interests of Associated Locomotive Equipment Ltd have been identified with those of Caprotti Valve Gears Ltd and that Mr F. J. Kuretschka was now managing director of both companies.
1936 Alternative arrangements for manufacture of Caprotti valve gear for William Beardmore and Co were under discussion due to the recent announcement of the association of interests of Caprotti with Associated Locomotive Equipment who were owners of the competitor Lentz poppet valve.
1937 Heenan and Froude had identified another speciality product that would balance their production of refuse disposal plant. This was later announced to be locomotive gears, which was implemented through an association with Caprotti Valve Gears Ltd in which Heenan and Froude had taken a substantial share interest.
1945 Heenan and Froude acquired the holding in Associated Locomotive Equipment Ltd from Caprotti Valve Gears Ltd. This company now controlled all of Heenan and Froude's trading and patent rights in valve gears.