John Alfred Prestwich

John Alfred Prestwich (* 1874 in Kensington, † 1952) was a British engineer.

He was both famous film technology devices as well as for the design of internal combustion engines, which he produced in his company JAP.

At age 16, he began to work at Sebastian Ziani de Ferranti. In 1894 he started his own business and built electric apparatus. In 1896, he was in contact with the cinema pioneer William Friese- Greene, which he dedicated as "Part Designer". Green developed a duplex film projector, but the first was not successful. However, from 1897, he was able to offer three projectors, who possessed the specific transport mechanism for completely flicker motion picture. The film format was 2 ⅜ inches or 60.325 mm. With a special copying machine Prestwich and Green respective Vorführpositive have made ​​.

Prestwich selling movie cameras all over the world; Model 4 of 1898 already took 500 feet 1 ⅜ " raw stock ( about 150 meters). Moreover, the Prestwich Industries, Ltd., perforating, gluing teachings and accessories had in the catalog.