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Sunday, December 8, 2013

Need help with part construction...

Please take a look and see if you can help me figure out how to make this thing.  The diagram is eschpecially illuminating.
 
 
THE DIE-CAST DROP-FORGED PLASTIC

TRICHOTOMETRIC INDICATOR-SUPPORT
          Inquiries concerning the mounting of the Trichotometric Indicator
          Support indicate that some difficulty is being experienced with the
          brackets which attach the support. As an aid toward fabricating the
          support brackets, the accompanying illustration is provided to show
          the type of material as well as the dimensional data needed. It will
          be noted that in attaching the bracket to the support a special ambi-
          melical hexnut is used. The application of this nut is unique in that
          any attempt to remove it in the conventional manner only tightens it.
          Because of this design, the nut must be fully screwed on before it can
          be screwed off.


 

DRAWN BY
FRED SPOON
SCALE ¼”=1 MILE
NO. 43906
FILE – BAR NONE

 Thanks to ZL2DEX for bringing this to our attention.


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3 comments:

  1. How about welding 3 screws on a back-plate?
    Alternatively you could drill 3 holes in a back-plate and secure the bolts with a nut.

    ReplyDelete
  2. It's one of those.

    Since the piece with three threaded ends can't exist, there's no way you can actually do anything with it.

    It only seems to have three ends, until you look at the other end.

    I admit this is fancier than when I've seen it before, since the bracket is also an illusion.

    I'm not sure if the point of this post is to see what people don't see, or see who notices the truth first. Hence I'm not waiting.

    Michael

    ReplyDelete
  3. OK, so the bracket and the nuts are Moibus strups and the attachment is Escheresque....

    Tom KI6NRD

    ReplyDelete

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