Overview
ISO 142:1976 - Textile machinery and accessories - Weaving preparatory machines - Definition of left and right sides is a concise International Standard that defines how to determine the left and right sides of weaving preparatory machines. The standard establishes a single, unambiguous orientation rule: the observer looks against the direction of thread feeding (against the flow of material) to determine left and right. Illustrative figures cover common equipment such as beam warping machines, cone warping machines, beaming machines and warp sizing machines. ISO 142:1976 replaces ISO Recommendation R 142-1960 and was issued by ISO Technical Committee ISO/TC 72.
Key topics
- Orientation rule: Left/right side determined by an observer looking against the flow of material (direction of thread feeding).
- Machine coverage: Applies to major weaving preparatory machines including:
- beam warping machines
- cone warping machines
- beaming machines (including sectional warping and beaming)
- warp sizing machines
- Illustrative guidance: Simple figures are provided to show the defined sides for the typical machine types.
- Standard status: First edition (1976); replacement of the earlier ISO Recommendation R 142-1960 without technical change.
Applications
ISO 142:1976 is practical for any activity that requires consistent orientation and unambiguous references to machine sides:
- Machine design and manufacturing: ensures consistent placement of controls, panels, safety devices and service access across suppliers.
- Documentation and drawings: standardizes left/right references in technical drawings, user manuals and spare-parts lists.
- Installation and factory layout: helps installers and layout engineers orient machines relative to thread flow and adjacent equipment.
- Maintenance and safety procedures: gives maintenance teams and safety officers a common frame of reference for inspections and safe working practices.
- Procurement and quality control: enables buyers and inspectors to verify conformance to orientation references in specifications and inspection reports.
Who uses this standard
- Textile machinery manufacturers and design engineers
- Technical authors and documentation specialists
- Maintenance and production engineers in textile mills
- Safety officers and quality inspectors
- Standards bodies and procurement teams
Related standards
- ISO Recommendation R 142-1960 (replaced by ISO 142:1976)
- Work managed by ISO Technical Committee ISO/TC 72 - Textile machinery and accessories
Keywords: ISO 142:1976, textile machinery, weaving preparatory machines, left and right sides, orientation, warping machine, beaming machine, warp sizing machine, machine documentation.
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