BS 4073:1966

Cooperating organizations
Foreword
Specification
1. Scope
PART 1. GENERAL REQUIREMENTS
2. Capacities
3. Vehicle types and dimensions
4. Designation (car reference)
5. General finish and protective coating
6. Inspection
7. Marking
PART 2. BODIES AND UNDERFRAMES
Section one. Bodies
8. General
9. Materials
10. Dimensions
11. Design and construction
Section two. Underframes
12. Materials
13. Design and construction
Section three. Attachment of body to underframe
14. Method of attachment
PART 3. WHEELS AND AXLES
Section one. Wheels
15. Materials and mechanical properties
16. Dimensions and weights
17. Heat treatment of cast wheels
18. Fettling and dressing
19. Freedom from defects
20. Rectification of castings
21. Eccentricity in the machined condition
22. Marking
Section two. Axles
23. Materials
24. Dimensions
Section three. Wheel and axle assemblies
25. Wheel and axle assemblies
PART 4. SUSPENSION GEAR
26. General design and construction
27. Springs
PART 5. COUPLER AND BUFFER GEAR
28. General design
29. Materials
30. Construction
31. Heat treatment
32. Rectification of castings
33. Workmanship
34. Testing of coupler assemblies
35. Coupler operating gear
36. Inspection
PART 6. ANCILLARY REQUIREMENTS
37. Engagement brackets
38. Brakes
39. Identification plates
APPENDICES
A. British Standard bearings
B. Strength of coupler
C. Details of leaf bend test for mine car springs
D. Metric equivalents
E. Information to be provided with enquiry and order
TABLES
1. Car dimensions - Notes on Table 1
2. Wheel, axle and bearing sizes
FIGURES
1. Typical mine car
2. Details of underframe, ram, creeper and tippler
    engagement assembly (mine car capacity 60-81 ft
    (cubed)
3. Details of underframe, ram, creeper and tippler
    engagement assembly (mine car capacity 82-138 ft
    cubed)
4. 12 in dia. mine car wheels
5. 14 in dia. mine car wheels
6. Details of mine car axles
7. Typical mine car wheel and axle assembly
8. Details of mine car axlebox for steel laminated
    springs
9. Details of mine car hub cap
10. Typical mine car spring for a maximum total load
    of 5 1/4 ton
11. Typical semi-automatic 'dolly' type coupler
    operated from either side by gear mounted on both
    ends of the car
12. Typical fully automatic coupler activated from
    either side by gear mounted on both ends of the car
13. Typical hook and link coupler
14. Typical non-articulating head type coupler with
    swivel 'D' coupling link
15. Typical non-articulating head type coupler with
    shackle and hook couplings

General requirements, bodies and underframes, wheels and axles, suspension gear, coupler and buffer gear and ancillary requirements. Vehicle capacities, dimensions and designations; materials, design, construction and testing. Illustrations: typical mine car, underframe, ram, creeper and tippler engagement assembly, wheels, axle assembly, laminated springs, typical coupler units.

This British Standard provides specification of materials, basic design requirements and constructional details, including specifications for individual components, for heavy rolling stock of “solid bottom?? design, with capacities within the range 60 to 200 ft³, having approximate tonnage capacities of 1½ to 5 tons of coal, or 3 to 10 tons of stone (see Clause 2). Vehicles are of the type employing resilient suspension and having loose wheels incorporating precision bearings.

The dimensions and other requirements of the main components are presented on a basis of alternatives permissible for each size/load combination, so that selection may be made to produce an overall design, made up of standardized parts, as required for particular purposes or service conditions. This standard provides for rolling stock designed to carry different kinds of bulk materials, such as metalliferous ores, as well as for rolling stock primarily designed for coal or stone.