cambium saver

kevin bingham

Does anyone know who invented the ring to ring cambium saver? Somebody must have brought it to the arb world. Does anyone know its history? Who gets the credit for such a brilliant, simple device?

Eric Frei

I think it arrived via Sherrils and perhaps invented by Ken Palmer, Rip Tomkins.

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Treebeard

I think Buckingham owns the patent.

I could be wrong however.

kevin bingham

I posted the same question over at ???????, this seemed like a pretty informed response

Hey Kevin

As far as I'm aware the dual saver was created by Frederick Mathias & Francois Doussant sometime around 1992-93. It was constructed by taking a standard figure * & cutting out the the centre section leaving a large & small ring. These were added to a webbing sling sewn with a crows foot loop at each end so that the rings could be secured. The 8 rings were later changed for specific sized purpose built aluminium rings that were stitched directly into the webbing as per todays cambium/friction savers.

I understand that the invention has been claimed by others in the USA but to my knowledge these were first shown publically at the 1st European ISA Conference in Leinstein, Germany in 1993.

Commercially, the first producer was Svensk Tradvard 85 who helped begin a mass change in peoples approach & attitude towards tree work & climbing. Quite fair to say that as a supply company that they were way ahead of the time.

I still have my original figure 8 cambium saver hacked sawed apart in the workshop & showing a deep groove in the rings as they could not spin around, therefore the wear was all in one spot.

Cheers
Nod

TrevMcRev

Interesting, thanks for finding and sharing the history on that Kevin.