IS 10040 : 1981 Specification for Rotating Hooks for Sewing Machines for Industrial Use

1 Scope

Covers the requirements of rotating hook which operates in afull rotary motion in a vertical plane on a horizontal axis, and ismainly used on LS1 (1) and LS2 (1) class sewing machines forindustrial use.

Note - Symbols LSI (1) and LS2 (1) conform to IS 9152 : 1979`Glossary of terms and identification symbols relating toclassification of industrial sewing machines'.