IS 3291 : 2023 Household Sewing Machines - Thread Take-Up Cams - Specification
1 SCOPE
1.1 This Indian Standard covers the requirements for two types of thread take-up cams for sewing machines for household purposes.
1.2 This standard does not cover the thread take-up cams used in industrial and special-purpose sewing machines.
2 REFERENCES
The standards given below contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subjected to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards:
| IS No. | Title |
| IS 210 : 2009 | Grey iron castings - Specification (fifth revision) |
| IS 1570 (Part 3) : 1979 | Schedules for wrought steels: Part 3 Carbon and carbon-manganese free cutting steels (first revision) |
| IS 2102 | General tolerances: |
| (Part 1) : 1993/ISO 2768-1 : 1989 | Tolerances for linear and angular dimensions without individual tolerance indications (third revision) |
| (Part 2) : 1993/ISO 2768-2 : 1989 | Geometrical tolerances for features without individual tolerance indications |