Anchor escapement (English Wikipedia)

Reid, Thomas (1832). Treatise on Clock and Watch-making, Theoretical and Practical. Philadelphia, USA: Carey & Lea. p. 184.
Inwood, Stephen (2003). The Forgotten Genius. San Francisco: MacAdam/Cage Pub. p. 34. ISBN 978-1-931561-56-3. OCLC 53006741. the oft-repeated claim that Hooke invented the anchor escapement originated in William Derham's The artificial clock-maker (1696), not with Hooke, and is now regarded as untrue.
Macey, Samuel L., ed. (1994). Encyclopedia of Time. New York: Garland Publishing. p. 125. ISBN 0815306156.
Glasgow 1885, p. 297.
Glasgow, David (1885). Watch and Clock Making. London: Cassel & Co. p. 293.

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Beckett, Edmund (Lord Grimsthorpe) (1874). A Rudimentary Treatise on Clocks and Watches and Bells, 6th Ed. London: Lockwood & Co. p. 71.
Usher, Abbott Payson (1988). A History of Mechanical Inventions. Courier Dover. p. 313. ISBN 0-486-25593-X.
Chapman, Allen (2005). England's Leonardo: Robert Hooke and the Seventeenth Century Scientific Revolution. CRC Press. p. 84. ISBN 0-7503-0987-3.
Britten, Frederick J. (1896). The Watch and Clock Maker's Handbook, 9th Ed. London: E.F. & N. Spon. pp. 8–11.
Moore, N. Hudson (1936). The Old Clock Book. Tudor. p. 40.
Betts, Jonathan Regulators in Bud, Robert; Warner, Debra Jean (1998). Instruments of Science: An Historical Encyclopedia. Taylor & Francis. p. 121. ISBN 0-8153-1561-9.
Flamsteed, John; Forbes, Eric; Murdin, Lesley (1995). The Correspondence of John Flamsteed, First Astronomer Royal, Vol.1. CRC Press. ISBN 978-0-7503-0147-3. Letter 229 Flamsteed to Towneley (September 22, 1675), p. 374, and Annotation 11, p. 375.
Andrewes, W. J. H. Clocks and Watches: The leap to precision in Macey, Samuel (1994). Encyclopedia of Time. Taylor & Francis. p. 126. ISBN 0-8153-0615-6. This cites a letter of December 11, but he may have meant the September 22 letter mentioned above.
Airy, George Biddle (November 26, 1826). "On the Disturbances of Pendulums and Balances and on the Theory of Escapements". Transactions of the Cambridge Philosophical Society. 3 (Part 1). University Press: 105. Retrieved 2008-04-25.
Beckett 1874, p. 75–79.
Beckett 1874, p. 75.

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Headrick, Michael (2002). "Origin and Evolution of the Anchor Clock Escapement". Control Systems magazine. 22 (2). Inst. of Electrical and Electronic Engineers. Archived from the original on September 14, 2004. Retrieved 2007-06-06.

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"A Simple Regulator" (PDF). NAWCC News. Atlanta: National Assoc. of Watch and Clock Collectors: 1. October 2009. Archived from the original (PDF) on May 23, 2014. Retrieved May 22, 2014.

oldandsold.com

"Deadbeat escapement". Encyclopedia of Clocks and Watches. Old and Sold Antiques Marketplace. Archived from the original on 20 May 2008. Retrieved 2008-06-08.

web.archive.org

Headrick, Michael (2002). "Origin and Evolution of the Anchor Clock Escapement". Control Systems magazine. 22 (2). Inst. of Electrical and Electronic Engineers. Archived from the original on September 14, 2004. Retrieved 2007-06-06.
"Deadbeat escapement". Encyclopedia of Clocks and Watches. Old and Sold Antiques Marketplace. Archived from the original on 20 May 2008. Retrieved 2008-06-08.
"A Simple Regulator" (PDF). NAWCC News. Atlanta: National Assoc. of Watch and Clock Collectors: 1. October 2009. Archived from the original (PDF) on May 23, 2014. Retrieved May 22, 2014.

wikisource.org

en.wikisource.org

Penderel-Brodhurst, James George Joseph (1911). "Clock" . In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 6 (11th ed.). Cambridge University Press. pp. 536–553, see page 541 & figs. 8 & 9. Escapements.—....Anchor escapement..&..Dead escapements

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Inwood, Stephen (2003). The Forgotten Genius. San Francisco: MacAdam/Cage Pub. p. 34. ISBN 978-1-931561-56-3. OCLC 53006741. the oft-repeated claim that Hooke invented the anchor escapement originated in William Derham's The artificial clock-maker (1696), not with Hooke, and is now regarded as untrue.