This booklet sets minimum requirements for the guarding of carding machines in order to establish a uniform guarding standard in the industry. It has been discussed and agreed with the industry. The Department of Labour requires all owners of carding machines, whether they are in the woollen industries or own non-woven machinery, to comply with these requirements.

Guidelines are given on different systems of locking and interlocking the guard panels, which have been implemented successfully by some owners of carding machines. As a guide, technical outlines are also included to assist machine owners to upgrade and interlock guards for their machines.

Carding machines are used in both worsted and woollen yarn production. They are also used in the production of most other staple yarns. In all cases, the design of the carding machine is arranged to suit the product to be carded, but the basic principle of guarding these machines is the same.

Table of Contents

Introduction
Background and Future Developments
Hazards
Legal Requirements
Guarding Requirements
   Woollen carding machine
   Worsted carding machine
Guard Construction
   Material
   Type
   Support
Deadlock/Padlock System
Trapped Key Interlock System
Solenoid-Operated Bolt System
Appendices (photographs)
Sliding panel guards with trapped key interlock on a carding machine
Hinged panel guards with trapped key interlock on a carding machine
Fixed guards with hinged panel doors locked by solenoid bolt
Further Information