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Re: bare-knuckle trivia
Author: Steven D. Johnson
Date: 02-08-2010 - 21:00

Yes, the knuckle's missing! It's probably not technically a 'Tightlock' coupler, as those require Grade H knuckles and components, which are designed to not fit anything but Grade H couplers (Tightlock). The same is true for Grade E and Grade C couplers. The idea behind all that is to ensure that inferior grade components are not installed into higher grade couplers. Freight locomotives and cabooses are/were supplied with at least one each of Grade E and Grade C. That is most likley considered a Side Shelf Coupler, Grade E, also shelf couplers are not less than Grade E. Passenger locomotives and cars would be equipped with Grade H Tightlock couplers.

Most HazMat rated tank cars are now equipped with combination Side and Bottom Shelf Grade E couplers.

But hey, maybe it is, and that's why the knuckle's missing...no Grade H knuckle available!

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Subject Written By Date/Time (PST)
  UP 15th Street Tacoma Martin Burwash 02-08-2010 - 20:06
  Re: UP 15th Street Tacoma George Andrews 02-08-2010 - 20:12
  Re: UP 15th Street Tacoma Steve Thompson 02-08-2010 - 20:39
  Re: bare-knuckle trivia Steven D. Johnson 02-08-2010 - 21:00
  knuckleless coupler d 02-09-2010 - 12:25
  Re: bare-knuckle trivia Rich 02-09-2010 - 13:32
  Re: bare-knuckle trivia Grades/Ratings Steven D. Johnson 02-09-2010 - 16:13
  Re: bare-knuckle trivia ex-BN 02-10-2010 - 13:13


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