All great inventions are unorthodox

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Granville Bradshaw was an engineer and inventor with a vision that few could match. He became well-know for his designs of early aeroplanes and aero engines, but he was also involved with motorcars like the ABC and later the Belsize-Bradshaw. In many ways Granville Bradshaw was way ahead of his time, sprouting ideas that were sometimes limited by the engineering capabilities of his day. One of his many patents was this tamper-proof screw. By making the screw and special screwdriver as one, a far greater positive driving force was possible; eliminating the need to bore a pilot hole and there was no risk of the driver slipping and damaging the surrounding material. This and the many other achievements of Granville Bradshaw have been researched by Barry Jones and published in a very detailed biography. See Read More for details of the book!

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