Some Facts About Screws and Screwdrivers

What do you know about the background of the screw? I knew little up until this week when I review Witold Rybczynski’s 2000 book One Great Turn, A Natural History of the Screwdriver and the Screw.

I stumbled upon this book while investigating our recent article on drive designs. The book details Rybczynski’s look for the best workman’s tool of the previous millennium.

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Rather than doing a straightforward review, I have put together a list of the leading few truths I learned more about the history of the screwdriver, as well as the screw. Take pleasure in it!

  • A number of the worker’s devices we utilize today were developed throughout the Roman Age or perhaps in the past.
  • Rybczynski discovers the histories of numerous other devices, such as the saw, the chisel, the plane, and the level. He finds that every one of these devices was developed during the Roman age if not before. The chisel, for example, days from the Bronze Age.
  • The threading on a screw creates the shape of a helix, not a spiral. This is a usual blunder. Rybczynski writes, “A spiral is a curve that winds around a set point with an enhancing span, a helix, is a three-dimensional contour that turns around a cylinder at a consistent likely angle.” Spiral stairs form helixes, not spirals.
  • The screw firsts appear in machinery during the time of the Old Greeks when screws were utilized in presses of various kinds. Screws were initially utilized in grape presses, as well as olive presses. Between Ages, this device was adapted for usage in the printing press as well as the paper press. The screw system allows for incredible pressure to be put on the things being pressed with minimal initiative. For instance, imagine a press whose large screw has a pitch of one inch, as well as which is turned by means of a handspike three feet long. A pressure of only 40 pounds on the handspike will apply a pressure of more than nine thousand extra pounds on the grapes or olives.