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of Gothic Works, Edmonton, London, N18.
of 49 Queen Victoria Street, London, EC (1914)
1843 Thomas Glover claimed to have invented the original diaphragm gas meter. In fact, Glover introduced essential practical improvements to the dry (diaphragm) meter of Croll and Richards's 1844 patent.
1844 Company established.
1858 Dissolution of the Partnership between Thomas Glover and Alexander Angus Croll, as Dry Gas Meter Manufacturers, under the style or firm of Thomas Glover, at Suffolk-street and Allen-street, in the parish of Clerkenwell, Middlesex
1867 Awarded a silver medal for gas meters at the Paris Exposition.
1868 Thomas Glover died
1891 Agnes Reid Glover left the Partnership with Richard Thomas Glover, and John George Glover, under the style of Thomas Glover and Company, carrying on business as Gas Meter Manufacturers, at 214 to 222, St. John-street, Clerkenwell, in the county of Middlesex, and also at Manchester and Bristol, and carrying on business at Birmingham, under the style of John Tornlinson and Co. The business was carried on under the same style of Thomas Glover and Company and John Tomlinson and Co., at the same places, by the said Richard Thomas Glover and John George Glover
1896 Incorporated as a limited company.
1897 Public company.
1897 T. Glover and Co manufactured Gas Meters at the Gothic Works.
1904 Offering a range of horizontal two-stroke oil engines under the Melhuish patent in the 2 to 14 hp range. By 1906 they had ceased producing them. 
1914 Manufacturers of dry gas meters and high-pressure gas lighting. Employees 900.  Directors: R. Thomas Glover (Chairman and Managing Director), Robert B. Main, A. P. Main, Sir Paul A. Makins, Bart., Kenneth Aird, Thomas Glover, W. R. Glover.
1937 Listed Exhibitor - British Industries Fair. Gas Meters for Industrial purposes. Components and Accessories. (Stand Nos. Ca.605 and Ca.504) 
1963 Patent - Improvements relating to gas cocks.
1964 Patent - Improvements in or relating to the capping of gas cylinders.