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Of Stamp End Works, Lincoln were manufacturers of traction engines, agricultural machinery and locomotives.
Iron-founding soon became their main interest, with the railway boom at first providing a rapidly expanding market. This was followed by the start of their rise to prominence as agricultural engineers.
1845 Produced portable steam engine similar to William Howden and Son of Boston. Clayton had been a captain on one of the river boats and often visited the works of Howden.
1849 Started making steam threshing machines.
1849 Exhibited a large range of implements at the RASE show at Norwich 
1850 Produced the castings for Rectory Junction Viaduct, Netherfield, Notts.
1851 Exhibited at the 1851 Great Exhibition. Details of their products shown at at-
1851 Award at the 1851 Great Exhibition. See details at
1852 They employed 80 persons.
1853 Won the first prize at the Gloucester Show for a portable engine.
By 1854, when the Royal Agricultural Society of England show was held in Lincoln, the company employed 520 men and 80 boys.
1856 Had built 2,200 portable engines built by this date.
1861 Employing 900 men 
1862 Exhibited at the 1862 London Exhibition. Details of their products shown at -
1867 Produced two railway locomotives for Hall and Co.
1870s Producing engines for the agricultural market.
1875 Produced a railway locomotive.
1876 Exhibitor at the Royal Agricultural Show at Birmingham with a 10 hp double cylinder traction engine. 
1881 Employing 1,295 people 
1883 Joseph Shuttleworth died
1888 Issued catalogue on portable, semi-portable, traction and fixed engines, boilers, thrashing and elevating machinery, power chaff cutters, mills, saw benches, centrifugal pumps and water mills. 
1892 Produced a railway locomotive for the Consett Iron Co.
1900 June. Royal Agricultural Show at York. Showed three traction engines. 
1900s Produced steam tractors.
1902 Produced a railway locomotive for the Consett Iron Co.
1906 They employed 2,000 persons.
1911 Smithfield Club Show. Exhibited latest agricultural or general-purpose traction engines. 
1913-1917 For a list of the models and prices of Steam Motor Wagons, Tractors and Ploughs etc. see the 1917 Red Book
1914 They employed 2,100 persons. 
WW1 Set up a subsidiary company Clayton Wagons at Abbey works, Lincoln.
1916 Produced the Clayton tractor with a Dorman four-cylinder Kerosene engine
1920 Long description of their new Abbey Works, Lincoln in The Engineer. 
1920 Royal Agricultural Show at Darlington. Showed 5 ton steam wagon (illustrated). 
1921 Had successfully developed a business in mainline locomotive boilers and considered there were good opportunities in water-tube boilers, which the company would soon be able to supply up to the largest sizes required for power stations. The new crude oil engine had been well received. Had accepted a large block of shares in an Austrian company from which there was a prewar debt which was unlikely to be repaid
1921 Mr R. McGregor joins the firm as engineer and manager.
1924 The engineering side was sold to Babcock and Wilcox.
1927 See Aberconway for information on the company and its history.