	See under Lock.
	a lock containing a contrivance for showing whether it as has been tampered with.

See also: Detector, Lock

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.

References in periodicals archive

Robert Barron patented two methods in 1778 for the doubleacting lever lock, before fellow Brit Jeremiah Chubb patented the detector lock in 1818 - which revealed if someone had tried to pick it.

Unlocking the past was such good fun; Days Out GRAHAM YOUNG VISITS THE LOCKSMITH'S HOUSE, WILLENHALL

The firm was established by his great-great grandfather Charles Chubb who devised the detector lock in 1818, and it had been run by the Chubb family ever since.

Last family chairman of Chubb dies at 92

The Chubb Detector lock was the first major challenge to Bramah's dominance.

Under lock and key

These include a 1680 detector lock made and signed by John Wilkes; a tubular rocking chair, dated 1840-1850 by R W Winfield, of Birmingham, and candelabrum designed for the House of Lords in 1846 by John Hardman & Co.

City's cultural history on show at revamped museum

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