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Description of BS 5550-3.10.1:1980 19651. This British Standard relates to the dimensions of 16-tooth intermittent sprockets, and 16-tooth, 24-tooth and 32-tooth feed and hold-back sprockets for use with 35 mm perforated film in accordance with Table 3, Positive raw stock, of B.S. 677, Part I : 1958*. It specifies the essential dimensions for accurate engagement with the film, and gives recommended dimensions in respect of the form of the teeth.
16-tooth intermittent, and 16-tooth, 24-tooth, 32-tooth feed, sound head and hold-back sprockets for use with cellulose nitrate film and cellulose acetate film. Dimensions for accurate engagement with film, minimize film wear, visual performance; dimensions for form of teeth. For motion picture techniques this type of sprockets is obsolescent.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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