Tyer and Co
of 16 Ashwin Street, Dalston, London N.E.8
c.1852 The Railway Electric Signals Co was formed under the management of Edward Tyer
1875 Dissolution of the Partnership between Edward Tyer, John Musgrove Norman, and Thomas Meadows Clarke, carrying on business as Telegraph Engineers and Contractors, and Telegraph Instrument Makers, at No. 4, Old-street, St. Luke's, in the county of Middlesex, and will henceforth be carried on by the above-named Edward Tyer and John Musgrove Norman.[1]
1878 After the Thorpe railway accident, Edward Tyer patented a system of electrical control for single lines, later called the "Tablet".[2]
1879 Dissolution of the Partnership between Edward Tyer and John Musgrove Norman, carrying on business at No. 4, Old-street, Goswell-road, in the county of Middlesex, and Barrow-in-Furness, in the county of Lancaster, as Telegraph Engineers and Contractors and Telegraph Instrument Makers, under the style or name of Tyer and Co[3]
1914 The business of J. Tweedy and Co of Carlisle was continued by Tyer and Co (represented by Mr. R. W. Tweedy, the son of the well-known mechanical engineer, Mr. J. Tweedy).[4]
1922 Directors: George Terrell, M.P. (Managing), Walter Edward Tyer, M.A., Jas. Wm. Punter, M.I.Mech.E., M.I.E.E. M.I.S.E., F.P.W.Inst., Austin Arnold Tyer, M.V.O. B.A., Assoc.M.Inst.C.E., and Reginald Terrell, M.P. Specialities: railway signal, telegraph and safety appliances for railways.
1938 Electrical and mechanical railway signal engineers [5]
1953 Makers of railway signalling equipment and automatic train control apparatus (under licence from a Swiss company)[6]
1953 Acquired by Southern Areas Electric Corporation[7] which had space and machines at other factories that would overcome the limit on production imposed by the size of the Dalston site[8].
1956 Modernization work anticipated for British Transport Commission.
Jan 2015 Images: Tablet/Token machines in use 2015 at Galoya Jnc. and Kalawewa Stations, Sri Lanka. Lever frame at Kalawewa.