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Geo. Adlam & Sons Ltd. Bristol, Pump Desiccator for Telescopes and Binoculars, Admiralty Patt. 12128, 1944 George Adlam & Sons was a British company founded in 1800 which by the 20th century specialized in metalwork and the manufacture of equipment for the brewing and chocolate industries. During WW II they manufactured a hand pump desiccator for British Barr & Stroud naval binoculars as well as designing a Royal Navy brewing ship to supply soldiers in the Pacific with beer. The desiccator was actually most likely designed by Barr & Stroud in 1937 who subsequently published a manual for its use (William Reid, Barr & Stroud Nitrogen-filled Binoculars: the facts Bulletin of the Scientific Instrument Society No. 81, 2004, p. 34)Adlams hand pump desiccator was used to fill the Barr & Stroud CF41 7×50, Britains primary WW II handheld naval binocular, with dry air to prevent internal condensation and fungus. Although the CF41 which entered service in 1935 was not originally equipped with desiccator connections for dry air purging, at some point during the war they were added to new CF41s and CF42s, and older CF41s, CF42s as well as some CF30s were retrofitted with them
Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Sturminster Newton
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