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May 1, 2025
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INVENTED PARALLEL MOTION LINKAGE 1776 (jan 1, 1776 – jan 1, 1781)

Description:

parallel motion allows a rod moving practically straight up and down to transmit motion to a beam moving in an arc, without putting significant sideways strain on the rod.

Added to timeline:

Date:

jan 1, 1776
jan 1, 1781
~ 5 years

Images: