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| Re: Chicago CTA 'L' Sleet/Ice/Snow Mechanisms (Photos) (1274442) | |||
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Re: Chicago CTA 'L' Sleet/Ice/Snow Mechanisms (Photos) |
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Posted by ChicagoPCCLCars on Sat Feb 8 16:42:15 2014, in response to Re: Chicago CTA 'L' Sleet/Ice/Snow Mechanisms (Photos), posted by Joe V on Fri Feb 7 09:52:48 2014. There is this photo by Joe Testagrose from 1969 showing a CTA2200 testing showing a trolley third rail mechanism needed under a covering. I noted that Chicago could have changed "L"/subway in 1939 by using the larger dimensions planned for the Initial Subway System.....but they chose to continue with the same 8'-8" base floor. Also continued was the third rail dimension. The trolley block mechanism was used in almost all car series.....4000, 5000, 6000, 6131, 6511, 1-50, 2000, 2404, 2600, 3200, 5000(2009), 7000. The only exceptions are the two series...6201 and 2200 where the truck designs incorporated a paddle shoe and not the gravity shoe. |
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