GB806553A - Improvements in or relating to tapering pin-and-box type threaded couplings - Google Patents
Improvements in or relating to tapering pin-and-box type threaded couplingsInfo
- Publication number
- GB806553A GB806553A GB32956/56A GB3295656A GB806553A GB 806553 A GB806553 A GB 806553A GB 32956/56 A GB32956/56 A GB 32956/56A GB 3295656 A GB3295656 A GB 3295656A GB 806553 A GB806553 A GB 806553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- pin
- thread
- box
- pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008878 coupling Effects 0.000 title abstract 5
- 238000010168 coupling process Methods 0.000 title abstract 5
- 238000005859 coupling reaction Methods 0.000 title abstract 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/30—Locking exclusively by special shape of the screw-thread
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
806,553. Rod, &c. couplings. BATAAFSCHE PETROLEUM MAATSCHAPPIJ N. V. DE. Oct. 29, 1956 [Oct. 31, 1955], No. 32956/56. Addition to 786,652. Class 99(1). [Also in Group XXIV] In a pin-and-box coupling, e.g. for a welldrilling string, the pin 2 and the box 3 are each provided with tapering screw-threads 7, 8 at least one of which when unloaded, deviates from a normal tapering screw-thread in such a way that when the coupling has been tightened up the inner flanks of the screw-thread on the pin and the outer flanks of the screw-thread on the box are more heavily loaded than the other flanks of the screw-threads. A normal tapering screw-thread is defined as one in which the pitch and taper are uniform throughout the length thereof, and the outer and inner flanks are defined as those flanks which are directed respectively away from and towards a plane M normal to the axis of the screw-thread and bisecting the length of the screw-thread. As shown in Fig. 1, the pin 2 is provided on a drill collar 1 formed with a shoulder 5 which is in contact with a shoulder 6 on a drill collar 3 formed with the box 4, and the screw-threads have flattened tips, and roots. The coupling may be made up by the application of mechanical power, or the box may be heated before being screwed on to the pin so that consequent shrinkage thereof contributes to the loading of the screw-threads. A local variation of pitch may be provided on one or both of the screw-threads near the middle thereof, or the pitch of the screw-thread at the smaller diameter end of the pin may be smaller than the pitch at the larger diameter end of the pin whilst the pitch of the screw-thread on the box is larger at the end corresponding to the smaller diameter end of the pin than at the other end of the box. In another case, both the screw-threads have a constant pitch, the pitch of the screw-thread on the pin being smaller than that of the box, and the taper of the pin at the larger diameter end being smaller and at the smaller diameter end being larger than the taper of the box. Further, the pitch of the screwthread on the pin may be smaller than that of the screw-thread on the box, the difference in pitch decreasing from the middle of the screwthreads towards both ends ; preferably, the pin has a normal tapering screw-thread, and the decrease of the difference in pitch is continuous. Specification 799,028 is referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL185953A NL89471C (en) | 1954-03-16 | 1954-03-16 | |
NL201628A NL96590C (en) | 1954-03-16 | 1955-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB806553A true GB806553A (en) | 1958-12-31 |
Family
ID=26645479
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7378/55A Expired GB786652A (en) | 1954-03-16 | 1955-03-14 | Improvements in or relating to tapering box-and-pin-type threaded couplings |
GB32953/56A Expired GB801456A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to cylindrical pin-and-box type threaded couplings |
GB32956/56A Expired GB806553A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to tapering pin-and-box type threaded couplings |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7378/55A Expired GB786652A (en) | 1954-03-16 | 1955-03-14 | Improvements in or relating to tapering box-and-pin-type threaded couplings |
GB32953/56A Expired GB801456A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to cylindrical pin-and-box type threaded couplings |
Country Status (4)
Country | Link |
---|---|
DE (2) | DE1012876B (en) |
FR (3) | FR1124979A (en) |
GB (3) | GB786652A (en) |
NL (6) | NL89471C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589550A (en) * | 1969-11-17 | 1971-06-29 | Nat Forge Co | Flexible thread systems for high-pressure vessels and the like |
GB2145791A (en) * | 1983-08-31 | 1985-04-03 | Hunting Oilfield Services | Threaded pipe connectors |
GB2146086A (en) * | 1983-09-06 | 1985-04-11 | Hunting Oilfield Services | Threaded pipe connectors |
GB2146084A (en) * | 1983-08-31 | 1985-04-11 | Hunting Oilfield Services | Pipe connectors |
US4673201A (en) * | 1983-09-01 | 1987-06-16 | Hunting Oilfield Services (Uk) Limited | Pipe connector |
US9770766B2 (en) | 2012-01-20 | 2017-09-26 | Ceratizit Austria Gesellschaft M.B.H. | Hard-material threaded connection |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129963A (en) * | 1960-06-30 | 1964-04-21 | Robbins Machine & Mfg Co | Low release torque threaded joint |
NL271091A (en) * | 1961-11-07 | 1964-07-27 | ||
GB1111995A (en) * | 1964-05-29 | 1968-05-01 | Sandvikens Jernverks Ab | Improvements in threaded drill rod elements |
FR2190237A5 (en) * | 1972-06-16 | 1974-01-25 | Vallourec | |
FR2190238A5 (en) * | 1972-06-16 | 1974-01-25 | Vallourec | |
US4121862A (en) * | 1977-04-06 | 1978-10-24 | Exxon Production Research Company | Pipe connection |
US4373754A (en) * | 1978-08-09 | 1983-02-15 | Hydril Company | Threaded connector |
USRE34467E (en) * | 1983-04-29 | 1993-12-07 | The Hydril Company | Tubular connection |
DE3474331D1 (en) * | 1983-04-29 | 1988-11-03 | Hydril Co | Improved tubular connection |
JP2620101B2 (en) * | 1988-03-23 | 1997-06-11 | 宣行 杉村 | Aki muffler |
US4892337A (en) * | 1988-06-16 | 1990-01-09 | Exxon Production Research Company | Fatigue-resistant threaded connector |
DE4111463A1 (en) * | 1991-04-09 | 1992-10-15 | Festo Kg | EXTERNAL THREAD AND INTERNAL THREAD, PREFERABLY FOR THE PRODUCTION OF FLUIDIC CONNECTIONS IN PNEUMATICS |
DE4431377C1 (en) * | 1994-08-29 | 1996-05-09 | Mannesmann Ag | Pipe connector |
WO2007089427A2 (en) * | 2006-01-26 | 2007-08-09 | Ramos, Beverly, Watts | Threaded pipe connection |
US20070220731A1 (en) * | 2006-03-23 | 2007-09-27 | Hardinge, Inc. | Apparatus and method for engaging components through thermal contraction |
NL1033343C2 (en) * | 2007-02-06 | 2008-08-07 | Gerrit Cornelis Koese | Coupling for rotationally connecting two elements and drilling device equipped with them in one direction of rotation. |
CN102296935A (en) * | 2011-07-30 | 2011-12-28 | 山西环界石油钻具制造有限公司 | High-antitorque moment threaded connecting structure for outer coring pipes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1817808A (en) * | 1930-11-20 | 1931-08-04 | Spang Chalfant & Company Inc | Method of making tight threaded joints |
-
0
- NL NL201628D patent/NL201628A/xx unknown
- NL NL201627D patent/NL201627A/xx unknown
- NL NLAANVRAGE7611685,A patent/NL185953B/en unknown
-
1954
- 1954-03-16 NL NL185953A patent/NL89471C/xx active
-
1955
- 1955-03-14 FR FR1124979D patent/FR1124979A/en not_active Expired
- 1955-03-14 GB GB7378/55A patent/GB786652A/en not_active Expired
- 1955-10-31 NL NL201627A patent/NL96272C/xx active
- 1955-10-31 NL NL201628A patent/NL96590C/xx active
-
1956
- 1956-03-10 DE DEN11945A patent/DE1012876B/en active Pending
- 1956-03-10 DE DEN11943A patent/DE1151774B/en active Pending
- 1956-10-29 FR FR71006D patent/FR71006E/en not_active Expired
- 1956-10-29 FR FR1162733D patent/FR1162733A/en not_active Expired
- 1956-10-29 GB GB32953/56A patent/GB801456A/en not_active Expired
- 1956-10-29 GB GB32956/56A patent/GB806553A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589550A (en) * | 1969-11-17 | 1971-06-29 | Nat Forge Co | Flexible thread systems for high-pressure vessels and the like |
GB2145791A (en) * | 1983-08-31 | 1985-04-03 | Hunting Oilfield Services | Threaded pipe connectors |
GB2146084A (en) * | 1983-08-31 | 1985-04-11 | Hunting Oilfield Services | Pipe connectors |
US4673201A (en) * | 1983-09-01 | 1987-06-16 | Hunting Oilfield Services (Uk) Limited | Pipe connector |
GB2146086A (en) * | 1983-09-06 | 1985-04-11 | Hunting Oilfield Services | Threaded pipe connectors |
US9770766B2 (en) | 2012-01-20 | 2017-09-26 | Ceratizit Austria Gesellschaft M.B.H. | Hard-material threaded connection |
Also Published As
Publication number | Publication date |
---|---|
NL96590C (en) | 1960-08-15 |
NL201628A (en) | |
DE1151774B (en) | 1963-07-25 |
FR71006E (en) | 1959-10-07 |
FR1162733A (en) | 1958-09-16 |
NL201627A (en) | |
GB801456A (en) | 1958-09-17 |
GB786652A (en) | 1957-11-20 |
DE1012876B (en) | 1957-08-01 |
NL185953B (en) | |
FR1124979A (en) | 1956-10-22 |
NL89471C (en) | 1958-06-16 |
NL96272C (en) | 1960-06-15 |
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