BS 308-1:1993

Committees responsible
Foreword
Recommendations
1 Scope
2 References
3 Types of engineering drawings in common use
4 Drawing sheets
5 Scales
6 Lines
7 Lettering
8 Projection
9 Views
10 Sections and sectional views
11 Item references
12 Symbols and abbreviations
13 Conventional and simplified representation of
     features
14 Conventional and simplified representation of
     components
15 Marking
Annexes
A (informative) Aspects of engineering drawing
     practice covered by British and international (ISO)
     standards
B (informative) Simplified representation of centre
     holes and their designation
Tables
1 Recommended drawing sheet sizes (trimmed)
2 Recommended scales
3 Types of line
4 Character height
5 Indication of gear teeth systems
6 Threaded fasteners
B.1 Representation and designation of centre holes on
     drawings
B.2 Interpretation of the designation
Figures
1 Drawing sheets showing frame, title block and other
     markings
2 Applications of the various types of line
3 Priorities of coinciding lines
4 Leader lines
5 Examples of letters and numerals
6 Symbols indicating method of projection
7 Example of first angle projection
8 Example of third angle projection
9 Special arrangement of views
10 Auxiliary view showing true shape of inclined
     surface
11 Example of a partial view projected from a full
     view
12 Representation of symmetrical parts
13 Representation of symmetrical parts with
     asymmetrical features added
14 Methods of indicating and interrupted view
15 Developed views
16 Enlarged features
17 Repeated parts and features
18 Patterns of repeated features
19 Locating repeated features
20 Economy in showing patterns
21 Cutting plane not indicated
22 Cutting plane indicated
23 Examples of orientation of hatching
24 Hatching of separated areas and adjacent parts
25 Hatching of large areas
26 Subordination of hatching
27 Section through thin material
28 Web in longitudinal section
29 Spokes in longitudinal section
30 Assembly of pin, lever and shaft
31 Half section
32 Local section
33 Revolved sections
34 Removed sections
35 Successive sections
36 Section in parallel planes
37 Examples of section in intersecting planes
38 Section in contiguous planes
39 Item references
40 True intersection lines
41 Imaginary intersection lines indications
42 Straight line simplified intersection indications
43 Indication of flat features on cylindrical parts
44 Examples of knurling
45 Simplified representation of splines and serrations
46 Transverse details of splines and serrations
47 Conventions for screw threads
48 Conventions for assembled screw threads
49 Adjacent part
50 Conventions for threaded inserts
51 Conventions for wire thread inserts
52 Convention for rolling bearing
53 Convention for shaft seals
54 Gears: showing conventions for contours, edges,
     pitch lines and circles
55 Gears and rack: showing conventions for root
     surface
56 Examples of indications of types of gear for gear
     systems
57 Assembled mating gears
58 External engagement of cylindrical gears
59 Internal engagement of cylindrical gears
60 Engagement of pinion with rack
61 Engagement of bevel gears, axis intersection at any
     angle
62 Engagement of wheel with cylindrical worm
63 Chain wheels
64 Compression springs
65 Tension springs
66 Torsion springs
67 Torsion bar springs
68 Wound strip springs
69 Disc springs
70 Leaf springs
Index
List of references

Covers paper sizes and scales to a complete drawing of views and sections.