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William Cartwright (1846-1915) of William Heap and Co
1916 Obituary 
WILLIAM CARTWRIGHT was born at Stalybridge on 4th October 1846.
He was educated at the British School and at the Mechanics' Institute, Stalybridge.
He served an apprenticeship of seven years with the firm of John Eckersley and Son, Stalybridge, after which he worked for a short time as journeyman, and then entered the office of Mr. J. Cartwright, Civil Engineer.
In 1874 he was employed as a draughtsman by Messrs. William Heap and Co., Engineers and Tool-Makers, of Ashton-under-Lyne; here he soon worked his way up, and was put in charge of the drawing-office.
In 1892 the firm was converted into a Company, in which Mr. Cartwright was appointed General Manager and Director, a position which he retained till his death. During this period he was principally engaged in the design and construction of general machine-tools, chiefly for the gas-engine building and brass-finishing trades. He designed many tools for the manufacture of "Clyburn" spanners, a specialized production of the firm, and in 1898 he played a prominent part in arranging the extension of the Company's Works.
His death took place suddenly in Manchester on 30th November 1915, at the age of sixty-nine.
He was elected a Member of this Institution in 1901.