BS 3641-1:1971

Co-operating organizations
Foreword
0 General
0.1 Scope
0.2 Sizes and proportions
0.3 The use of the arrow
0.4 The grouping of symbols
List of symbols
Section
1 Modes
2 Elements
3 Values
4 Actions
5 Safety and status indications
6 Compound symbols
Appendix
A Examples of the grouping of symbols
Figures
1 Grinding spindle, revolutions per minute and feed
     per minute
2 Plate adjacent to a lever showing the feed in
     either direction
3 Engaging feed and disengaging feed
4 Presentation and withdrawal of tapping spindle with
     respect to workpiece
5 Lever controlling table traverse with disengaging
     point and with varying feed positions in each
     direction longitudinally
6 Application of symbols to plate showing a wide
     range of functions

Designs, drawings for form of symbols, not dimensional representations; recommendations for proportions in design of symbols, independent of dimensions. Reproduced at basic size to 0.8 mm module grid.

This British Standard specifies basic designs for symbols intended for use on machine tools.

Drawings in this standard relate to the form of symbols only and are not absolute dimensional representations.

The standard makes recommendations for proportions to be used in the design of symbols, independent of actual dimensions.

The standard provides for the grouping together of symbols selected from the same or different sections of the standard according to individual requirements.

Examples of groupings of symbols are given in Appendix A for guidance purposes.