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BS MA 81:1980

Current
Current

The latest, up-to-date edition.

Specification for ships\' derrick fittings
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-11-1980

Foreword
Specification
1. Scope
2. References
3. Terminology
4. Axial and permissible loads
5. Nominal sizes
6. Materials
7. Construction and quality of manufacture
8. Testing, inspection and certification
Table
1. Recommended materials
Figures
1. Typical derrick rig arrangement showing locations
     of fittings
2. Gooseneck bearing assembly
3. Topping swivel assembly
4. Head fittings
5. Heel fittings
6. Heel cross-pins
7. Gooseneck pins
8. Gooseneck bearing brackets
9. Heel blockholders
10. Retaining rings and retaining pins for goosenecks
11. Topping swivels and locating pins
12. Topping swivel bearing brackets

Specifies dimensions and recommends materials for fittings suitable for axial or permissible loads ranging from 1.6 t to 40 t.

This British Standard specifies dimensions and recommends materials for ships’ derrick fittings suitable for axial or permissible loads ranging from1.6 t to 40 t inclusive.

Excluded from this standard are:

  1. the specification for tubular derrick booms, for which reference should be made to BS MA 832);
  2. the specification for securing bolts for the attachment of the cargo blocks to the heel blockholder or topping swivel, where special types of bolts with spring adjusters are sometimes used.

2) In course of preparation.

Committee
MHE/3/3
DevelopmentNote
Supersedes 77/70698 DC (08/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 8148:1985 Similar to
ISO 6043:1985 Similar to
ISO 8314:1987 Similar to
ISO 6044:1985 Similar to
ISO 6045:1987 Similar to

BS MA 48:1976 Code of practice for design and operation of ships\' derrick rigs
BS 1486-1:1959 Lubricating nipples Lubricating nipples and adaptors for use on machinery and vehicles
BS 970-1(1972) : 1972
BS 5135:1974 Specification for metal arc welding of carbon and carbon manganese steels
BS MA 10:1971 Specification for oval eyeplates
BS 4320:1968 Specification for metal washers for general engineering purposes. Metric series

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