GB801456A - Improvements in or relating to cylindrical pin-and-box type threaded couplings - Google Patents
Improvements in or relating to cylindrical pin-and-box type threaded couplingsInfo
- Publication number
- GB801456A GB801456A GB32953/56A GB3295356A GB801456A GB 801456 A GB801456 A GB 801456A GB 32953/56 A GB32953/56 A GB 32953/56A GB 3295356 A GB3295356 A GB 3295356A GB 801456 A GB801456 A GB 801456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- thread
- box
- pin
- threads
- 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 4
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000012530 fluid Substances 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)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Earth Drilling (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Drilling Tools (AREA)
Abstract
801,456. Rod &c., couplings. DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ,N. V. Oct. 29, 1956 [Oct 31, 1955], No. 32953/56 Addition to 786,652. Class 99(1). [Also in Group XXIV]. In a pin-and-box coupling for pipe-lines or a well-drilling string, the pin 2 and the box 4 being provided with cylindrical screw-threads 5 and 6 respectively, at least one of the screwthreads, when unloaded, deviates from a normal cylindrical screw-thread in such a way that, after the box has been shrunk tight around the pin, the outer flanks of the screw-thread 5 and the inner flanks of the screw-thread 6 are more heavily loaded than the other flanks of the screw-threads. A normal cylindrical screw-thread is defined as one in which the pitch and the flank diameter are uniform throughout, or one in which the pitchis uniform and the flank diameter varies so that there is a taper over part or all of the length of the screw-thread of less than one degree, the flank diameter being equal to twice the radial distance from the axis of the screw-thread to the middle of the flank ; also, the inner and outer flanks are defined as those flanks which are directed respectively away from and towards a plane M normal to the longitudinal axis of and bisecting the length of the screw-thread. The screw-threads of the pin and box, when unloaded and cold, may have the same pitch, the middle of the screw-thread on either or both the pin and box being provided with a local variation of pitch at the plane M, and the difference between the flank diameters of the screw-threads being greater at the middle of the latter than at the ends thereof. Alternatively, (a) both screw-threads may have a constant pitch, that of the screw-thread of the pin being greater than that of the screw-thread of the box, in this case, the difference between the flank diameters being smaller at the middle of the screw-threads than at the ends of the latter, and (b) the screw-thread of the pin is of greater pitch than the screw-thread of the box, the difference in pitch decreasing from the middle of the screw-threads towards both ends thereof, preferably the decrease of the difference in pitch being continuous and the box being provided with a normal cylindrical screwthread. As shown in Fig. 1, there is a helical slot between the unloaded flanks of the screwthreads 5, 6. In the embodiment shown in Fig. 5, the pin 15 has a shoulder 16 which bears against a shoulder 18 provided on the box 17 ; the lines 19 and 20 extending from the shoulders 16, 18 and the flank 21 intersect on one side of the axis 22 of the coupling so that a good fluid seal may be obtained between the shoulders. Specification 799,028 is also 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 |
---|---|
GB801456A true GB801456A (en) | 1958-09-17 |
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 (1)
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 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32956/56A Expired GB806553A (en) | 1954-03-16 | 1956-10-29 | Improvements in or relating to tapering 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 (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388935A (en) * | 1964-05-29 | 1968-06-18 | Sandvikens Jernverks Ab | Threaded drill rod element |
WO2007111916A2 (en) * | 2006-03-23 | 2007-10-04 | Hardinge, Inc. | Apparatus and method for engaging components through thermal contraction |
Families Citing this family (21)
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 | ||
US3589550A (en) * | 1969-11-17 | 1971-06-29 | Nat Forge Co | Flexible thread systems for high-pressure vessels and the like |
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 |
GB8323349D0 (en) * | 1983-08-31 | 1983-10-05 | Hunting Oilfield Services Ltd | Pipe connectors |
GB8323348D0 (en) * | 1983-08-31 | 1983-10-05 | Hunting Oilfield Services Ltd | Pipe connectors |
GB8323508D0 (en) * | 1983-09-01 | 1983-10-05 | Hunting Oilfield Services Ltd | Pipe connectors |
GB8323858D0 (en) * | 1983-09-06 | 1983-10-05 | Hunting Oilfield Services Ltd | Pipe connectors |
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 |
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 |
AT13405U1 (en) * | 2012-01-20 | 2013-12-15 | Ceratizit Austria Gmbh | HART MATERIAL THREAD CONNECTION |
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 (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388935A (en) * | 1964-05-29 | 1968-06-18 | Sandvikens Jernverks Ab | Threaded drill rod element |
WO2007111916A2 (en) * | 2006-03-23 | 2007-10-04 | Hardinge, Inc. | Apparatus and method for engaging components through thermal contraction |
WO2007111916A3 (en) * | 2006-03-23 | 2007-12-06 | Hardinge Inc | Apparatus and method for engaging components through thermal contraction |
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) | |
GB786652A (en) | 1957-11-20 |
DE1012876B (en) | 1957-08-01 |
NL185953B (en) | |
FR1124979A (en) | 1956-10-22 |
NL89471C (en) | 1958-06-16 |
GB806553A (en) | 1958-12-31 |
NL96272C (en) | 1960-06-15 |
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