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Information required about shed plates

Rasprava u 'Railwayana' pokrenuta od jameslee67, 12. Veljača 2012..

  1. jameslee67

    jameslee67 New Member

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    10. Prosinac 2011.
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    Hello, I am looking to find out some information about shed plates, my dad used to collect them and i have a few from his collection, my query is relating to the back of the plates, some of them have two raised rings around the bolt holes on the back and some of them have raised edges or a sunken middle. Why are the rears of the plates different. is it something to do with where they were cast. Thanks very much in advance.
     
    jameslee67, 12. Veljača 2012.
    #1
  2. Martin Perry

    Martin Perry Nat Pres stalwart Staff Member Moderator Friend

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    I would guess that both varieties of raised areas were designed to stop the plate cracking when it was tightened against a curved smokebox door, the differences in the shapes of the areas were probably just down to local practices?
     
    Martin Perry, 12. Veljača 2012.
    #2
  3. jameslee67

    jameslee67 New Member

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    Thanks for your reply. I am more interested in finding
    out why some have the round raised bits around the
    bolt holes on the rear and others have the sunken middle.
    It seems that the plates starting with 8 have the round raised
    bits around the bolt holes. Just wondered
    why there different. Thanks
     
    jameslee67, 12. Veljača 2012.
    #3
  4. Talyllyn07

    Talyllyn07 Member

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    just for information:

    my 89C shed plate follows your theory...

    cheers
    AT
     
    Talyllyn07, 15. Veljača 2012.
    #4
  5. tomparryharry

    tomparryharry Member

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    It depends on the patternmaker. Some would make different patterns, depending on where they were cast. I understand that the raised bolt holes were to enable a SC (self cleaning smokebox) plate to be bolted underneath the shedplate. This is held in place by the shedplate proper.

    Kind regards,
    Ian
     
    tomparryharry, 15. Veljača 2012.
    #5

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