This is the story of how a Cricklewood factory played an important role in exposing a fraudulent spiritualist medium in the 1920s. Photographic Dry Plates To record an image, early photographers used wet plates which had to be processed straight away. In 1871 Richard Maddox coated a glass plate with a gelatine emulsion of silver bromide. He found these plates could be stored until needed, and after exposure in the camera, taken to a darkroom for development at leisure. Joseph Acworth Joseph Acworth was born in Chatham in 1853 and was interested from boyhood in the experimental sciences. He began working in the laboratories of the Royal College of Chemistry in South Kensington, (now part of Imperial College). Acworth became fascinated by the photographic dry plates which Maddox had invented, and he worked in the labs of the newly created Britannia Dry Plate Company at Ilford. He went to the University of Erlangen in Germany where he...
This story looks at events in the Decca Studios in Broadhurst Gardens West Hampstead during World War Two. Decca Studios, 1963 Arthur Haddy (1906 to 1989) Arthur Haddy was the chief engineer at Crystalate and then Decca Studios which took over the building in 1937. During the War he was asked if Decca could help remove the static noise in intercepted radio signals picked up from German aircraft by the chain of ‘Y’ listening stations which were spread around the coast. He went to the Y HQ in West Kingsdown Kent to collect some wax recordings which were sent to the studios for improvement. The cleaned recordings were returned to the RAF to assist transcription, before they were sent to Bletchley Park. Arthur Haddy, 1970s (Getty Images) The company was also asked by the Government to develop a method of detecting submarines from their engine noise. An important event occurred on 27 August 1941 when the German U-boat U-570 was surprised by a Coastal Command aircraft which dropped dep...