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Standards for Roller Chains and Chain Wheels.

25th August 1925
Page 5
Page 5, 25th August 1925 — Standards for Roller Chains and Chain Wheels.
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A new specification just issued by the British Engineering Standards Association gives standards for two types of chain, long pitch and short pitch, with two widths of chain and chain wheel for each type. The specification has been based upon a report presented by the Association of British Driving Chain Manufacturers which has assisted in its preparation.

The specification includes a table of dimensions for the roller diameters and widths for chains having pitches from in. to 3 ins., formula for calculating the profiles of the teeth of chain wheels and complete dimensions for cutters for producing the teeth of the wheels.

Copies of the specification may, be obtained from the publication department of the British Engineering ,Standards Association, 28, Victoria Street, London, S.W.1, price is. 2d. post free.