BS 4521-3.2:1975
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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. Medium grade turnouts over which British Railways locomotives do not operate, for axle loads not exceeding 25 tons Turnouts 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 rail
Tables
1 Nomenclature for components
2 Materials for components
3 Leading dimensions of heel switch turnouts in Figs.
1, 2 and 5
4 Leading dimensions of spring switch turnouts in
Figs. 3, 4, 6 and 7
Figures
1 Layout diagram for heel switch turnouts on timber
supports
2 Layout diagram for heel switch turnouts on rolled
steel supports
3 Layout diagram for spring switch turnouts on timber
supports
4 Layout diagram for spring switch turnouts on rolled
steel supports
5 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, 1 in 8
6 Leading dimensions of spring switch turnouts, 1 in
4 and 1/2, 1 in 5, and 1 in 5 and 1/2
7 Leading dimensions of spring switch turnouts, 1 in
6, 1 in 6 and 1/2, 1 in 7, 1 in 7 and 1/2 and 1 in 8
8 Heel switches nomenclature
9 Spring switches nomenclature
10 9 ft heel switches (item 550) for turnouts 1 in 4
and 1/2, 1 in 5 and 1 in 5 and 1/2
11 12 ft heel switches (item 554) for turnouts 1 in 6,
1 in 6 and 1/2, 1 in 7, 1 in 7 and 1/2 and 1 in 8
12 22 ft 6 in spring switches (item 560)
13 Stretcher bars (items 132 and 133) and sole plate
(item 527)
14 Crossing and check rail nomenclature for heel and
spring switch turnouts
15 Crossing and check rail for heel switch turnouts 1
in 4 and 1/2, 1 in 5, 1 in 5 and 1/2 and 1 in 6, and
for spring switch turnouts 1 in 5 and 1/2 and 1 in 6
16 Crossing and check rail for spring switch turnouts 1
in 4 and 1/2 and 1 in 5
17 Crossing and check rail for heel and spring switch
turnouts 1 in 6 and 1/2
18 Crossing and check rail for heel and spring switch
turnouts 1 in 7, 1 in 7 and 1/2 and 1 in 8
19 Switch and crossing bolts (item 547)
20 Switch and crossing blocks
21 Rail joint (fishplated) (item 107), fishplate (item
116), fishbolt, nut and washer (item 182)
22 Switch baseplates
23 Back heel, common and check baseplates
24 Rail fastenings
25 Universal and stock rail washers
Turnouts from straight 4 ft 8½ in gauge track made from rails to BS 11, section 110A or 113A.
| Committee |
RAE/2
|
| DevelopmentNote |
Supersedes 72/36967 DC. (08/2005) Reviewed and confirmed by BSI, March 2010. (02/2010)
|
| DocumentType |
Standard
|
| Pages |
44
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
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