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blade crinking

Discussion in 'Camillus Collector's Forum' started by bertl, Nov 30, 2016.

  1. bertl

    bertl Gold Member Gold Member

    841
    Feb 17, 2011
    Since the stockman pattern knives had the two secondary blades on the same spring, a slight crink or bend was made near the tang so blades could close. What I would like to know is when in the manufacturing process this occurred and how? Was it done before the hardening process or later? Was a jig used or was it done freehand?

    Bert
     
  2. WilliamCody

    WilliamCody

    93
    Aug 30, 2016
    I'm not 100% sure, but my understanding is that it's after heat treat/hardening and they heat the tang back up and make the adjustment. From what I have been told, this makes the different metal components have differing hardness, reducing wear as well.
     
  3. bertl

    bertl Gold Member Gold Member

    841
    Feb 17, 2011
    Thanks for the information, WilliamCody. Do you know if a machine was dedicated for the crinking? It seems that it needed to be fairly precise.

    Bert
     
  4. Phil Gibbs

    Phil Gibbs Cutlery Student Platinum Member

    Nov 11, 1998
    Blade tangs were annealed after heat treat.
    Finished blades were set (crinking was not used as the term at Camillus) in the assembly department just prior to assembly.
    Most were set using a soft faced hammer, holding the blade in an air vice, and setting the blade to a pointer marking ideal set.
     
  5. bertl

    bertl Gold Member Gold Member

    841
    Feb 17, 2011
    Thank you, Phil.

    Bert
     
  6. citytransplant

    citytransplant

    212
    Apr 12, 2008
    Phil, what's an air vice? I tried Google (How to use ..) and came up empty. Thanks in advance and thanks for the interesting information.
     
  7. Phil Gibbs

    Phil Gibbs Cutlery Student Platinum Member

    Nov 11, 1998
    An air vice is a vice with an air cylinder, so it can be opened & closed rapidly using a foot pedal.
     
  8. citytransplant

    citytransplant

    212
    Apr 12, 2008
    Ah ha. Your post prompted me to search "pneumatic vice" and BINGO, I see exactly what you are referring to. The feature allows for rapid opening and closing of the jaws.

    I think my mother in law was born with one of these.
     

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