Overview
ISO 92:1976 specifies a clear, uniform method for defining the side (left or right) of spinning machinery used in textile production. Published by ISO/TC 72 in 1976, this short International Standard establishes how an observer should determine whether a spinning machine or spinning frame is described as left- or right‑handed, based on the direction and location of material flow and the driving side.
Key topics
- Scope and purpose
- Defines left/right orientation for spinning machinery and accessories.
- Applies to machines with material flow in a single direction, in various directions, and to double-sided machines.
- Determination rules
- For machines with material flow in a single direction, the observer determines left/right by looking against the flow of material.
- Examples given: blowroom machines, cards, drawing frames, fly frames, ring-spinning and ring-doubling frames, flyer-spinning and flyer-doubling frames.
- For machines with material flow in various directions, the observer looks against the flow where the fibres are subject to the principal work.
- Examples given: combing machines and ribbon lap machines.
- For double-sided spinning machines, the observer looks at the driving side of the delivery rollers. The same rule applies to centre-driven assemblies where a right-hand and left-hand machine are combined.
- Clear terminology
- Establishes consistent descriptors such as “right side,” “left side,” “drive,” “feed,” and “delivery” to reduce ambiguity in documentation and communication.
Applications
- Practical use in design, manufacture and installation of textile machinery and spinning frames.
- Useful for:
- machine manufacturers and OEMs preparing drawings and part lists,
- mill engineers and installation teams aligning machinery on the shop floor,
- maintenance and service documentation to avoid orientation errors,
- procurement and spare-parts catalogues specifying left/right components,
- standards committees and technical writers ensuring consistent terminology.
- Benefits include fewer assembly mistakes, clearer technical documentation, and improved interoperability across suppliers and mills.
Related standards
- ISO 92:1976 replaces the earlier ISO Recommendation R 92-1959 and was prepared by ISO/TC 72 (textile machinery). For machine-specific dimensions or safety requirements, consult other ISO standards relevant to particular spinning equipment types.
Keywords: ISO 92:1976, textile machinery, spinning machinery, spinning frames, orientation, left side, right side, spinning orientation, spinning machine standards.
Open preview (PDF)Textile machinery and accessories — Spinning machinery — Definition of side (left or right)
