Particulars of new arrangement introduced by London Passenger Transport Board which not only provides spring borne shoe gear but also enables all shoes to be withdrawn from and held clear of current rail by operation of hand wheel.
Retractable collector-shoe gear
Engineer
Engineer ; 183 , n 4758
1947
295 pages
Aufsatz (Zeitschrift)
Englisch
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Conductor-rail installation and maintenance, and collector shoe-gear
IET Digital Library Archive | 1950
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