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> From: Tony Smith <tsmith@fl*.or*>
> What is a piston clip?

A Piston Clip is a clip that has a 'piston'-like open/closure mechansim. They
are 
preferable to the normal 'widow-makers' (carrabina-type) clips as they are not
as prone to 
accidentally opening and attaching the diver to other items - such as wrecks.

I only use piston clips. However, when squeezing down a narrow area last year,
a piston 
clip that was holding a torch accidentally opened as it was dragged across the
rock, and 
dropped the torch. So they are not infallible.


    ____________
   /  ______    |
  |  /      \___|
  | |       
  | |         _
  | |        | |
  | |        | |
  | |        | |    <- 'piston' which opens / shuts clip
  |  \_      | |
   \_  \_____|_|          
     \_         |
       \_       |___
         \_     |_  |   <- Use thumb to drag this sprung 'catch'
           \    | | |      down to open piston above. Release
            |   | \_/      catch to close piston.
            |   |
            |   |
            |   |
            |___|
            
- Helen


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