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 couplings

Info

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
Application number
GB32953/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB801456A publication Critical patent/GB801456A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042Threaded
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00Features common to bolt and nut
    • F16B33/02Shape of thread; Special thread-forms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking 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
    • F16B39/30Locking exclusively by special shape of the screw-thread
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001Screw-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.
GB32953/56A 1954-03-16 1956-10-29 Improvements in or relating to cylindrical pin-and-box type threaded couplings Expired GB801456A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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