"The cross braces were bolted, which could have been a major headache, since screws were traditionally made by skilled craftsmen, such that no two were exactly alike and it was nearly impossible to replace lost or broken screws.
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"The cross braces were bolted, which could have been a major headache, since screws were traditionally made by skilled craftsmen, such that no two were exactly alike and it was nearly impossible to replace lost or broken screws. Patterson's design called for 30,000 nuts and bolts; screws with a consistent thread form would have streamlined the construction process considerably. Thanks to the invention of Henry Maudslay's screw-cutting lathe around 1798, the technology needed to create standard screws already existed."
How London’s Crystal Palace was built so quickly
New study finds it was the earliest known building to use a standard screw thread
Ars Technica (arstechnica.com)
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