ChossMonkey.com points us to The Nuts Museum where enormous amount of old climbing gear is displayed in a slideshow.
Along with tons of pictures of old gear, the article that accompanies the slideshow contains a history of nuts and other types of pro.
In 1961, a blacksmith from Sheffield, John Brailsford, then a teacher of engineering technology, created the ever first purpose designed nut, the Acorn. Three sizes (1 inch, ¾ inch and 5/8 inch) were turned on a lathe from extruded aluminium alloy. John Brailsford also tried Tufnol (a resin bonded fibre used by Rolls Royce or Hoover for making light weight, silent gears) and brass for their different properties of hardness. Since the Acorn had a machine nut sitting on its top and threaded on the same sling, this « nest of nuts » offered two options, the machine nut or the Acorn. They were probably the first nuts to be marketed in England, by the Roger Turner Mountain Shop in Nottingham.
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