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

ABSTRACT
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. 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. The size of the warping head shall be identified by the nominal barrel diameter measured at the smallest point of the barrel. These warping heads are furnished in two types: Type I is with a cylindrical barrel which is generally used in but not restricted to horizontal shaft applications and Type II is with a conical barrel which is mounted with the large end of the barrel toward the drive machinery. It is generally used in but not restricted to vertical shaft applications. On the other hand, the warping heads are divided into four grades according to composition: Grade 1 is fabricated from any combination of structural steel plate, pipe, tubing, or steel castings and joined by electric welding; Grade 2 is made from mild to medium strength steel; Grade 3 is fabricated from any combination of steel plate or steel castings and joined by electric welding; and Grade 4 is cast from high strength steel castings. Principal dimensions, tolerances, and strength requirements are discussed.
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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Publication Date
30-Sep-2012
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ASTM F1106-87(2012) - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:F1106 −87 (Reapproved 2012) An American National Standard
Standard Specification for
Warping Heads, Rope Handling (Gypsy Head, Capstan
Head)
This standard is issued under the fixed designation F1106; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 AWS Standard:
D 1.1 Structural Welding Code
1.1 This specification covers warping heads used with
windlass, winch, and capstan drive units to pull rope on board 2.3 ANSI Standard:
ships. Warping heads are primarily for use with fiber rope, ASA B 46.1 Surface Texture
natural, or synthetic.
2.4 Military Standards:
1.2 Warping heads with external ribs or whelps on the Fed-Spec T-R-605 Manila, Three Strand
MIL-R-24050 Nylon, Double Braided
barrel, notched flanges, attached storage drums, unfinished
drums, or non heat-treated fabrications, are considered special
3. Definitions of Terms Specific to This Standard
and are permitted within the scope of this specification when
fully described under special ordering information.
3.1 barrel—cylindrical or conical midbody portion of a
warping head.
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for 3.1.1 Discussion—The barrel may have a uniform diameter
throughthelengthormaybetaperedfromoneendtotheother.
information only.
3.2 flanges—circumferential rims at the ends of the barrel
2. Referenced Documents
used to retain wraps of rope on the barrel portion of the
2.1 ASTM Standards:
warping head.
A27/A27M Specification for Steel Castings, Carbon, for
3.3 rope contact surfaces—portions of the barrel, flanges,
General Application
and connecting fillets that a rope will contact when led in
A36/A36M Specification for Carbon Structural Steel
tangent to the barrel and normal to the shaft centerline,
A53/A53M Specification for Pipe, Steel, Black and Hot-
wrapped around the barrel, and led away tangent to the barrel
Dipped, Zinc-Coated, Welded and Seamless
as in normal use. (See Fig. 1 and Fig. 2.)
A148/A148M Specification for Steel Castings, High
3.4 warping head (also known as a gypsy head or capstan
Strength, for Structural Purposes
head)—cylindrical or conical rotating member to receive
A501 Specification for Hot-Formed Welded and Seamless
multiple wraps of rope around the circumference of the
Carbon Steel Structural Tubing
member and of suitable strength to impart a pulling motion to
A724/A724M Specification for Pressure Vessel Plates,
the rope by friction contact when the member is rotated.
Carbon-Manganese-Silicon Steel, Quenched and
Tempered, for Welded Pressure Vessels
4. Classification
A735/A735M Specification for PressureVessel Plates, Low-
Carbon Manganese-Molybdenum-Columbium Alloy
4.1 The size of the warping head shall be identified by the
Steel, for Moderate and Lower Temperature Service
nominal barrel diameter measured at the smallest point of the
E10 Test Method for Brinell Hardness of Metallic Materials
barrel.
4.2 Warping heads under this specification are furnished in
1 two types as follows:
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 and Deck Machinery.
Current edition approved Oct. 1, 2012. Published October 2012. Originally
approved in 1987. Last previous edition approved in 2006 as F1106 – 87 (2006). Available from American Welding Society, 550 N.W. Le Jeune Rd., Miami,
DOI: 10.1520/F1106-87R12. FL 33126.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036.
Standards volume information, refer to the standard’s Document Summary page on Available from Superintendent of Documents, U.S. Government Printing
the ASTM website. Office, Washington, DC 20402.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1106−87 (2012)
A B C D E
A B
Rope Pull, 1000 lb Tolerance, in. ± 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
⁄8 ⁄16
J J
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
⁄2 ⁄4
J J
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
⁄8 ⁄16
J J
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
⁄4 ⁄8
J J
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
⁄8 ⁄16
J J
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. 1Type I Warping Head
A B C D E
A B
Rope Pull, 1000 lb Tolerance, in. ± 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
9 25.0 12 13 ⁄16 4 ⁄16 8 ⁄16
3 3
⁄8 ⁄16
J J
5 7 31
12 37.5 16 18 ⁄8 5 ⁄16 10 ⁄32
1 3 11
15 50.0 20 23 ⁄4 6 ⁄4 13 ⁄16
1 1
⁄2 ⁄4
J J
7 1 13
18 75.0 24 27 ⁄8 8 ⁄16 16 ⁄32
9 7 3
21 100.0 28 32 ⁄16 9 ⁄16 19 ⁄16
5 5
⁄8 ⁄16
J J
3 13 7
24 125.0 32 37 ⁄16 10 ⁄16 21 ⁄8
7 3 31
27 150.0 36 41 ⁄8 12 ⁄16 24 ⁄32
3 3
⁄4 ⁄8
J J
1 1 3
30 175.0 40 46 ⁄2 13 ⁄2 27 ⁄8
1 13 3
33 200.0 44 51 ⁄8 14 ⁄16 30 ⁄32
7 7
⁄8 ⁄16
J J
13 3 7
36 225.0 48 55 ⁄16 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. 2Type II Warping Head
F1106−87 (2012)
4.2.1 Type I Warping Head With Cylindrical Barrel— fication A735/A735M Class 4. Component parts may be
Generally used in but not restricted to horizontal shaft appli- formed by casting, rolling or flanging, and joined by electric
cations. Also known as a gypsy head (see Fig. 1). welding, in accordance with AWS D1.1. Warping head weld-
4.2.2 Type II Warping Head With a Conical Barrel— ment shall be stress relieved and heat treated for a surface
Mounted with the large end of the barrel toward the drive hardness ( ⁄8 in. (3 mm) deep) of 200 to 250 Brinell on rope
machinery. Generally used in but not restricted to vertical shaft contact surface, in accordance with hardnessTest Method E10.
applications. Also known as a capstan head (see Fig. 2). Rope contact surfaces shall be finished in accordance with 8.7.
4.3 Warping heads are divided into four grades as follows: 6.4 Material for Grade 4 warping heads shall conform to
4.3.1 Grade 1—Fabricated from any combination of struc-
Specification A148/A148M quenched and tempered for a
tural steel plate, pipe, tubing, or steel castings and joined by surface hardness ( ⁄8 in. (3 mm) deep) of 200 to 250 Brinell on
electric welding.
rope contact surface in accordance with hardness Test Method
4.3.2 Grade 2—Cast from mild to medium strength steel. E10.Ropecontactsurfacesshallbefinishedinaccordancewith
4.3.3 Grade 3—Fabricated from any combination of steel
8.7.
plate or steel castings and joined by electric welding. Heat
6.5 The manufacturer’s name or identification mark,ASTM
treated to provide a surface hardness ( ⁄8 in. (3 mm) deep) of
specification number, and pattern, part, or drawing number
200 to 250 Brinell on rope contact surface. Rope contact
shallbecastmoldedordiestampedonthewarpinghead,using
surface finished to an average 125- to 160-µin. (3175- to
minimum ⁄2-in. (13-mm) size characters. The marking shall
4064-µmm) finish.
notbeontheropecontactsurfaceandshallbereadilyavailable
4.3.4 Grade 4—Cast from high strength steel castings and
for identification on an assembled windlass, winch, or capstan.
heat treated to provide a surface hardness ( ⁄8 in. (3 mm) deep)
6.6 Structural webs and diaphragms between the hub and
of 200 to 250 Br
...

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