Standard Specification for Warping Heads, Rope Handling (Gypsy Head, Capstan Head)

SCOPE
1.1 This specification covers warping heads used with windlass, winch, and capstan drive units to pull rope on board ships. Warping heads are primarily for use with fiber rope, natural, or synthetic.
1.2 Warping heads with external ribs or whelps on the barrel, notched flanges, attached storage drums, unfinished drums, or non heat-treated fabrications, are considered special and are permitted within the scope of this specification when fully described under special ordering information.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

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09-Nov-1998
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ASTM F1106-87(1998) - Standard Specification for Warping Heads, Rope Handling (Gypsy Head, Capstan Head)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: F 1106 – 87 (Reapproved 1998)
Standard Specification for
Warping Heads, Rope Handling (Gypsy Head, Capstan
Head)
This standard is issued under the fixed designation F 1106; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 1.1 Structural Welding Code
2.3 ANSI Standard:
1.1 This specification covers warping heads used with
ASA B 46.1 Surface Texture
windlass, winch, and capstan drive units to pull rope on board
2.4 Military Standards:
ships. Warping heads are primarily for use with fiber rope,
Fed-Spec T-R-605 Manila, Three Strand
natural, or synthetic.
MIL-R-24050 Nylon, Double Braided
1.2 Warping heads with external ribs or whelps on the
barrel, notched flanges, attached storage drums, unfinished
3. Definitions of Terms Specific to This Standard
drums, or non heat-treated fabrications, are considered special
3.1 barrel—cylindrical or conical midbody portion of a
and are permitted within the scope of this specification when
warping head.
fully described under special ordering information.
3.1.1 Discussion—The barrel may have a uniform diameter
1.3 The values stated in inch-pound units are to be regarded
throughthelengthormaybetaperedfromoneendtotheother.
as the standard. The values given in parentheses are for
3.2 flanges—circumferential rims at the ends of the barrel
information only.
used to retain wraps of rope on the barrel portion of the
2. Referenced Documents warping head.
3.3 rope contact surfaces—portions of the barrel, flanges,
2.1 ASTM Standards:
and connecting fillets that a rope will contact when led in
A 27/A 27M Specification for Steel Castings, Carbon, for
tangent to the barrel and normal to the shaft centerline,
General Application
wrapped around the barrel, and led away tangent to the barrel
A 36/A 36M Specification for Carbon Structural Steel
as in normal use. (See Fig. 1 and Fig. 2.)
A 53 Specification for Pipe, Steel, Black and Hot-Dipped,
3.4 warping head (also known as a gypsy head or capstan
Zinc-Coated Welded and Seamless
head)—cylindrical or conical rotating member to receive
A 148/A 148M Specification for Steel Castings, High-
multiple wraps of rope around the circumference of the
Strength, for Structural Purposes
member and of suitable strength to impart a pulling motion to
A 501 Specification for Hot-Formed Welded and Seamless
the rope by friction contact when the member is rotated.
Carbon Steel Structural Tubing
A 724/A 724M Specification for Pressure Vessel Plates,
4. Classification
Carbon-Manganese-Silicon Steel, Quenched and Tem-
3 4.1 The size of the warping head shall be identified by the
pered, for Welded Layered Pressure Vessels
nominal barrel diameter measured at the smallest point of the
A 735/A 735M Specification for Pressure Vessel Plates,
barrel.
Low-Carbon Manganese-Molybdenum-Columbium Alloy
3 4.2 Warping heads under this specification are furnished in
Steel, for Moderate and Lower Temperature Service
two types as follows:
E 10 Test Method for Brinell Hardness of Metallic Materi-
5 4.2.1 Type I Warping Head With Cylindrical Barrel—
als
Generally used in but not restricted to horizontal shaft appli-
2.2 AWS Standard:
cations. Also known as a gypsy head (see Fig. 1).
This specification is under the jurisdiction of ASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
Outfitting. Available from American Welding Society, 550 N.W. Le Jeune Rd., Miami,
Current edition approved Nov. 27, 1987. Published May 1988. FL 33126.
2 7
Annual Book of ASTM Standards, Vol 01.02. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Annual Book of ASTM Standards, Vol 01.04. 4th Floor, New York, NY 10036.
4 8
Annual Book of ASTM Standards, Vol 01.01. Available from Superintendent of Documents, U.S. Government Printing
Annual Book of ASTM Standards, Vol 03.01. Office, Washington, DC 20402.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 1106 – 87 (1998)
TABLE Continued
A B C D E
A B
Rope Pull, 1000 lb Tolerance, in. 6 Concentricity, in.
Diameter, in. Diameter, in. Diameter, in. Length, in. Length, in.
1 3 15 1 1
6 12.5 8 9 ⁄16 2 ⁄4 5 ⁄32 ⁄4 ⁄8
5 1 3
9 25.0 12 13 ⁄8 4 ⁄16 8 ⁄16
3 3
J J
⁄8 ⁄16
3 7 31
12 37.5 16 18 ⁄16 5 ⁄16 10 ⁄32
3 3 11
15 50.0 20 22 ⁄4 6 ⁄4 13 ⁄16
1 1
J J
⁄2 ⁄4
5 1 13
18 75.0 24 27 ⁄16 8 ⁄16 16 ⁄32
7 7 3
21 100.0 28 31 ⁄8 9 ⁄16 19 ⁄16
5 5
J J
⁄8 ⁄16
3 13 7
24 125.0 32 36 ⁄8 10 ⁄16 21 ⁄8
15 3 31
27 150.0 36 41 ⁄16 12 ⁄16 24 ⁄32
3 3
J J
⁄4 ⁄8
1 1 3
30 175.0 40 45 ⁄2 13 ⁄2 27 ⁄8
1 13 3
33 200.0 44 50 ⁄16 14 ⁄16 30 ⁄32
7 7
J J
⁄8 ⁄16
5 3 7
36 225.0 48 54 ⁄8 16 ⁄16 32 ⁄8
A
Tolerance for dimensions A, B, C, D, and E.
B
Concentricity of rope contact surface and flanges relative to bore.
NOTE 1—1 in. = 25.4 mm.
FIG. 1 Type I Warping Head
4.2.2 Type II Warping Head With a Conical Barrel— 5.1.3 Size (barrel diameter),
Mounted with the large end of the barrel toward the drive 5.1.4 Type (I or II),
machinery. Generally used in but not restricted to vertical shaft 5.1.5 Grade (1, 2, 3, or 4),
applications. Also known as a capstan head (see Fig. 2). 5.1.6 As-cast or machined dimensions for warping head
4.3 Warping heads are divided into four grades as follows: bore, hub length and location, hub puller holes, and shaft
4.3.1 Grade 1—Fabricated from any combination of struc- keying,
tural steel plate, pipe, tubing, or steel castings and joined by 5.1.7 Requirementforoptionalaccessorycoveronopenend
electric welding. of warping head (see 4.4),
4.3.2 Grade 2—Cast from mild to medium strength steel. 5.1.8 Special features required (ribs or whelps on barrel,
4.3.3 Grade 3—Fabricated from any combination of steel notched flanges, and attached storage drums), and
plate or steel castings and joined by electric welding. Heat 5.1.9 Product marking (shipping).
treated to provide a surface hardness ( ⁄8 in. (3 mm) deep) of
6. Material and Manufacture
200 to 250 Brinell on rope contact surface. Rope contact
surface finished to an average 125- to 160-µin. (3175- to
6.1 Material for Grade 1 warping heads shall conform to
4064-µmm) finish.
Specification A 36/A 36M or Specification A 27/A 27M for
4.3.4 Grade 4—Cast from high strength steel castings and
barrel, flanges, hubs, and structural webs or diaphragms.
heat treated to provide a surface hardness ( ⁄8 in. (3 mm) deep)
Materials conforming to Specifications A 53 or A 501 may be
of 200 to 250 Brinell on rope contact surface. Rope contact
used as an alternate for the barrel. Component parts may be
surface finished to an average 125- to 160-µin. (3175- to
formed by rolling or flanging, and joined by electric welding in
4064-µmm) finish.
accordance with ASW D1.1. Warping head weldment shall be
4.4 When required by ordering information, an accessory
stress relieved.
cover will be provided to cover the open end of the warping
6.2 Material for Grade 2 warping heads shall conform to
head.
Specification A 27/A 27M annealed.
6.3 Material for Grade 3 warping heads shall conform to
5. Ordering Information
Specifications A 148/A 148M, A 724/A 724M Grade B, or
5.1 Orders for warping heads under this specification shall SpecificationA 735/A 735M Class 4. Component parts may be
include the following: formed by casting, rolling or flanging, and joined by electric
5.1.1 Quantity (number), welding, in accordance with AWS D1.1. Warping head weld-
5.1.2 ASTM designation and year of issue, ment shall be stress relieved and heat treated for a surface
F 1106 – 87 (1998)
TABLE Continued
A B C D E
A B
Rope Pull, 1000 lb Tolerance, in. 6 Concentricity, in.
Diameter, in. Diameter, in. Diameter, in. Length, in. Length, in.
1 3 15 1 1
6 12.5 8 9 ⁄4 2 ⁄4 5 ⁄32 ⁄4 ⁄8
15 1 3
...

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