IS 4181 : 1967 Specification for Feed Fork for Sewing Machines for Household Purposes

1 Scope

1.1 This standard specifies the requirements for three types of feed forks for sewing machines for household purposes.

1.1.1 This standard does not deal with feed forks for sewing machines for industrial and special purposes.

2 References

IS 2 :1960 Rules for rounding off numerical values

IS 210 : 1962Specification for grey iron castings

IS 1501 : 1959 Method for Vickers hardness test forsteel

IS 1570 : 1961Schedules for wrought steels for general engineering purposes

IS 2102 : 1962Recommendations for machining deviations for dimensions without specified tolerances

IS 2108 : 1962Specification for black heart malleable iron castings