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| Re: Holiday Train Cancelled Today Dec. 3, 2016 (1418745) | |||
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Re: Holiday Train Cancelled Today Dec. 3, 2016 |
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Posted by randyo on Tue Dec 6 16:53:29 2016, in response to Re: Holiday Train Cancelled Today Dec. 3, 2016, posted by Bill from Maspeth on Tue Dec 6 13:56:42 2016. Actually all BMT prewar equipment that was equipped with side doors had an interlock that prevented the train from moving unless the bypass button ( in BMTspeak, officially the “Door Control Cutout” or merely “door control” button) was depressed. On prewar BMT equipment, the button was sealed and in the event the seal had to be broken and the button used, supervision had to be notified at the first opportunity and a car inspector would have to replace the seal after necessary repairs were made. CTA equipment has a similar procedure that requires a seal to be broken if their bypass (door control) button has to be used. On all cars up to and including the R-15s, the bypass button had to be held depressed in order for the train to keep taking power. Starting with the R-16s, the bypass button would remain depressed as long as the controller was in an operating position but would have to be redressed when the M/M needed to reapply power after the controller was shut off. For some reason neither the B of T nor the NYCTA felt it was necessary to have the bypass button sealed. I suspect that the reason that the IND prewar equipment lacked such amenities as running lights that changed when the reverser was thrown, tripcocks resettable from the cab and door interlocks was that these features were patented by the BRT and its successor company the BMT and the city wasn’t about to pay royalties to a company that it was trying to put out of business. |
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