BS 4521-2:1975
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specification for railway turnouts for private users Light grade turnouts over which British Railways locomotives do not operate, for axle loads not exceeding 10 tons, using flat bottom rails
Hardcopy , PDF
31-08-2015
English
30-04-1975
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Co-operating organizations
Foreword
Specification
1 Scope
2 Definitions
3 Inspection
4 Identification marking
5 General requirements
6 Nomenclature
7 Materials
8 Dimensions
Appendix
A Partly worn rails
Tables
1 Nomenclature for components
2 Materials for components
3 Leading dimensions of heel switch turnouts in Figs.
1 and 4
Figures
1 Layout diagram for heel switch turnouts
2 Heel switches nomenclature
3 Crossing and check rail nomenclature
4 Leading dimensions of heel switch turnouts 1 in
4 and 1/2, 1 in 5, 1 in 5 and 1/2, 1 in 6, 1 in
6 and 1/2, 1 in 7, 1 in 7 and 1/2 and 1 in 8
5 9 ft heel switches (item 243) for turnouts 1 in
4 and 1/2, 1 in 5 and 1 in 5 and 1/2
6 12 ft heel switches (item 244) for turnouts 1 in 6,
1 in 6 and 1/2, 1 in 7, 1 in 7 and 1/2 and 1 in 8
7 Crossing and check rail for turnouts 1 in 4 and 1/2,
1 in 5, 1 in 5 and 1/2, 1 in 6, 1 in 6 and 1/2, 1 in
7 and 1 in 7 and 1/2
8 Crossing and check rail for turnout 1 in 8
9 Rail joint (fishplated) (item 229), fishplate (item
230), fishbolt and nut (item 231)
10 Rail fastenings
11 Switch baseplates (item 219)
12 Crossing, check, common and backheel baseplates
13 Stretcher bar (item 232) and soleplate (item 223)
14 Switch, crossing and check blocks
15 Switch, crossing and check bolts (item 239)
Turnouts from 4 ft 8½ in gauge track made from rails to BS 11, section 75A.
| Committee |
RAE/2
|
| DevelopmentNote |
Supersedes 73/36004 DC. (08/2005) Reviewed and confirmed by BSI, March 2010. (02/2010)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
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