ISO 5245-1977 PDF

Full title and description

Textile machinery and accessories — Weft pirns with rings (27 mm and 30 mm) for automatic winding at the loom. This International Standard specifies the characteristics and dimensions of weft pirns fitted with rings of 27 mm and 30 mm diameter intended for automatic winding at the loom.

Abstract

This short standard defines the form, ring attachment and key dimensional limits for two sizes of weft pirns used in automatic loom winding operations. It provides manufacturers and users with a common reference to ensure interchangeability and correct fit of pirns and their rings in winding mechanisms.

General information

• Status: Withdrawn (listed as withdrawn in ISO records).
• Publication date: May 1977 (Edition 1, 1977-05).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.120.30 (Looms; weaving machines and accessories).
• Edition / version: Edition 1 (1977).
• Number of pages: 2 pages (concise specification).

Scope

The standard covers weft pirns equipped with rings of nominal diameters 27 mm and 30 mm that are intended for use with automatic winding devices at looms. It specifies principal dimensions, ring attachment details and general compatibility requirements to ensure that pirns fit standard winding mechanisms and operate reliably during high-speed weaving. The document is brief and focused on interchangeability rather than manufacturing process or materials.

Key topics and requirements

• Nominal ring diameters and dimensional tolerances for 27 mm and 30 mm weft pirns.
• Geometric form and critical dimensions that affect fit in automatic winding heads.
• Requirements for ring attachment to ensure secure seating during high-speed operation.
• Interchangeability criteria so pirns from different manufacturers function in common loom winding equipment.
• Short, prescriptive specification; does not cover materials, finishing or manufacturing methods in detail.

Typical use and users

Primary users are textile machinery manufacturers, pirn (weft package) producers, textile mill maintenance and procurement teams, and standards libraries. The standard is intended for specification of replacement pirns and for design input to winding head manufacturers to ensure compatibility with commonly used pirn ring sizes. Maintenance engineers and purchasing agents use the dimensional data for sourcing compatible parts.

Related standards

Related documents include other ISO and national standards on textile machinery components and pirn/coping dimensions, loom accessory interfaces and interchangeability standards governed by ISO/TC 72. Because ISO 5245:1977 has been withdrawn, users should also consult more recent ISO publications or relevant national standards covering pirns, bobbins and winding accessories for up-to-date requirements.

Keywords

weft pirn, pirn ring, 27 mm, 30 mm, loom winding, textile machinery, interchangeability, ISO 5245, pirn dimensions

FAQ

Q: What is this standard?

A: ISO 5245:1977 is an International Standard that specified dimensions and requirements for weft pirns fitted with rings of 27 mm and 30 mm intended for automatic winding at the loom.

Q: What does it cover?

A: It covers key dimensional characteristics, ring attachment details and interchangeability criteria for two nominal ring sizes (27 mm and 30 mm) used on weft pirns for automatic loom winding. The standard is concise (2 pages) and focused on fit and compatibility rather than manufacturing methods.

Q: Who typically uses it?

A: Textile machine builders, pirn manufacturers, mill maintenance and procurement staff, and standards maintainers consult this standard when specifying or sourcing pirns and compatible winding equipment.

Q: Is it current or superseded?

A: ISO 5245:1977 is recorded as withdrawn in ISO records. Users should verify current applicable standards for pirns and winding accessories from ISO or relevant national bodies before specifying parts for new equipment.

Q: Is it part of a series?

A: It belongs to the body of ISO standards for textile machinery (work of ISO/TC 72/SC 3) but is a standalone specification for weft pirns with rings; related standards address other components and methods in textile machinery.

Q: What are the key keywords?

A: Weft pirn, pirn ring, 27 mm, 30 mm, automatic winding, loom accessories, interchangeability, textile machinery, ISO 5245.