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The latch hook tool traces its origin to the invention of the latch needle. Invented in 1847, the latch needle was part of a knitting machine that wrapped yarn around the latch and pushed through a canvas before pulling it through and knotting the yarn to the canvas. [6] In the 1920s, the tool was created by combining the hand hook with the ...
Edward Ormerod developed and patented the "Ormerod" safety link or detaching hook, known in mining circles as a "butterfly". This elegant device was inserted into the winding rope in such a way that if the lift cage was accidentally overwound the link would be pulled into a bell through which the winding rope passed.
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A butterfly joint, also called a bow tie, dovetail key, Dutchman joint, or Nakashima joint, is a type of joint or inlay used to hold two or more pieces of wood together. These types of joints are mainly used for aesthetics, but they can also be used to reinforce cracks in pieces of wood, doors, picture frames, or drawers.
A similar hook and eye for brassieres was patented in 1902 by the M.E. Company. [8] The fasteners were eventually manufactured in the form of hook-and-eye tape, consisting of two tapes, one equipped with hooks and the other equipped with eyelets so that the two tapes could be "zipped" together side by side.
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