Joseph Isherwood
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Sir Joseph Isherwood |
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| Born |
23 June 1870 Hartlepool |
| Died | 24 October 1937 (aged 67) London |
| Cause of death | Pneumonia |
| Resting place | St. Mary's Church, Acklam, Middlesbrough |
| Nationality | British |
| Occupation | Naval architect |
| Spouse(s) | Annie Mary Fleetham |
| Children | Five |
Sir Joseph William Isherwood, 1st Baronet (23 June 1870 – 24 October 1937) was a British naval architect. He invented the Isherwood System of longitudinal construction of ships and the Arcform System.
Isherwood was born in Hartlepool, the son of a grocer. He was educated at Luggs School on the Headland, near St Hilda's church, and at the age of fifteen entered the drawing office of the Hartlepool shipbuilders Edward Withy & Co. He served in several departments in that firm and in 1896 left to become a ship surveyor with Lloyd's Register of Shipping. Here he developed the Isherwood System, a new stronger, safer, and cheaper longitudinal girder form of ship construction designed to replace the traditional traverse construction method (ribs placed at regular intervals along the keel), which he patented in 1906.
In 1907 he left Lloyd's to join the board of the shipbuilders R. Craggs & Sons of Middlesbrough, but soon returned to London to practise as a naval architect. The first ship constructed using his system was the Paul Paix, completed in August 1908, the first of many. Isherwood made a number of other significant contributions to his profession, notably the arcform hull design, which he introduced in 1933. His offices were located at Coronation House, 4 Lloyd's Avenue, London (next door to Lloyd’s Register of Shipping), The Whitehall Building, 17 Battery Place, New York, and The Zetland Buildings, Middlesbrough.
During the First World War, Isherwood gave his designs for torpedo-proof cargo vessels to the government free of charge. Most of his designs and patents were tested in liaison with the government at the National Physical Laboratory in Teddington. Isherwood designed ships for the wealthiest company in the world, Standard Oil, notably the ship S. V. Harkness, named after Stephen V. Harkness. The Harkness family were the silent partner of John D. Rockefeller.
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