Lucien Juy
id:
lucien-juy-279-6881657
title:
Lucien Juy
text:
Lucien Charles Hippolyte Juy was a French industrialist who made derailleur gears. He is credited with making the first derailleur with a collapsible parallelogram. A hinged frame swung in and out from the frame and fed the chain to one of a number of sprockets attached to the hub. Juy's derailleurs, sold as Simplex derailleurs, were novel in having a jockey wheel to correct the tension of the chain as it moved across differently sized sprockets.
brand slug:
wiki
category slug:
encyclopedia
description:
French industrialist
original url:
https://en.wikipedia.org/wiki/Lucien_Juy
date created:
date modified:
2021-12-05T14:16:30Z
main entity:
{"identifier":"Q6697088","url":"https://www.wikidata.org/entity/Q6697088"}
image:
fields total:
13
integrity:
14