x.com/amypretzel/status/2027064869040931329
1 correction found
that's 80 years of a working, functional, elegant mechanism just sitting there waiting for the world to figure out what to do with it.
The “80 years of a working, functional” zipper is incorrect: early zipper-like designs were unreliable, and the modern practical zipper dates to 1913 (patented 1917), shrinking the invention-to-adoption gap to decades, not 80 years.
Full reasoning
This sentence treats the zipper as a working, functional mechanism essentially ready in 1851 and then merely awaiting a use case until the 1930s.
However, credible historical sources indicate that:
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The late-19th-century “clasp-locker” prototype associated with early zipper development was “somewhat clumsy and frequently jammed”, i.e., it was not a reliably functional mechanism in the way a modern zipper is. The same source explains that the zipper only became a success after Gideon Sundback redesigned it into a “more streamlined and reliable form” in 1913. That means the key step to a reliably working zipper was a technology/design improvement, not merely a delayed use case.
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Other authoritative accounts likewise state that Judson’s device “lacked reliability” and that Sundback’s contribution was to make the zipper “reliable and practical”.
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The Smithsonian history further states that Sundback had created the modern zipper by December 1913 (with a 1917 patent) and that it would be “another twenty years” before the fashion industry promoted it on garments—again implying the major, practical “working zipper” milestone is circa 1913, not 1851.
Putting these together: the evidence contradicts the idea that there were 80 years of a working, functional, elegant zipper “just sitting there.” The record shows early versions were unreliable/jammed, and the modern practical zipper emerges in the 1910s—making the “working zipper” → mass-fashion adoption timeline on the order of ~20 years (1913 → mid-1930s), not 80 years.
3 sources
- Whitcomb Judson | Lemelson (MIT)
Judson’s 1893 “clasp-locker” prototype was “somewhat clumsy and frequently jammed”… In 1913… Gideon Sundbach remodeled Judson’s fastener into a more streamlined and reliable form, [and] the zipper became a success… By the mid-1930s, zippers had even been embraced by the fashion industry.
- NIHF Inductee Gideon Sundback Invented the Modern Day Zipper | National Inventors Hall of Fame
Judson’s locker “lacked reliability,” so he hired Sundback to “make it reliable and practical.”
- The Up and Down History of the Zipper – Smithsonian Libraries and Archives
Sundback… “By December 1913 he had created the modern zipper”… “It would be another twenty years before the fashion industry would promote the closure on garments.”