The action is explained under card (which see).
In 1748, Lewis Paul patented two different machines for carding.
In one of them the Arkwright, it was not till after several attempts by different men, Paul, Hargreaves, and Arkwright, worked in such a manner that it is diffiat share each had in the matter.
It was not till twenty years after Paul's invention that the cylinder carding-machine came into extensive usds of clepsydras; one with a balance.
A clock was presented by Pope Paul I. to Pepin, King of France, A. D. 760; was possibly a clepsydra. indications are as follows: —
A. D. 760, a clock presented by Pope Paul I. to Pepin, of France: probably a clepsydra.
A. D. 810, the cws:—
Fly-shuttle, John Kay, of Bury, 1738.
Carding-machine, Lewis Paul, 1738.
Drop-box, Robert Kay, 1760.
Spinning by rollers, LewLewis Paul or John Wyatt, 1738.
Spinning-jenny, Hargreaves, 1767.
Water-frame, Arkwright, 1769.
Power-loom, Rev. D. E. Cartwright, 1785.