US3698266A - Pipe wrench - Google Patents

Pipe wrench Download PDF

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Publication number
US3698266A
US3698266A US137306A US3698266DA US3698266A US 3698266 A US3698266 A US 3698266A US 137306 A US137306 A US 137306A US 3698266D A US3698266D A US 3698266DA US 3698266 A US3698266 A US 3698266A
Authority
US
United States
Prior art keywords
ring
dogs
bolts
wrench
pipe
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 - Lifetime
Application number
US137306A
Other languages
English (en)
Inventor
Horst Heinrich Georg Mader
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.)
Craelius AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Application granted granted Critical
Publication of US3698266A publication Critical patent/US3698266A/en
Assigned to CRAELIUS AKTIEBOLAG, reassignment CRAELIUS AKTIEBOLAG, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ATLAS COPCO AB
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
    • B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
    • B25B13/5066—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using rollers moving along radial cams in a cage structure at least partially surrounding the pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1261—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in a radial plane
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/18—Connecting or disconnecting drill bit and drilling pipe

Definitions

  • a pipe wrench has a holder ring unit (2--2) and a dog April 28, 1970 Germany ..P 20 20 625.1 actuating ring unit which un ts are coaxial and turnablerelative to each other by means of a handle 52 US. Cl. "81/53 A 81/91 A number (3) are Pivmally mum! Int. Cl. bolts 0f the holder ring unit and actuated So 88 t0 [58] Field of Search 81/53 A 53 2 91 pivot into gripping positions by means of bolts (6) of the dog actuating ring unit when the handle is actuated.
  • FIG. 1 is a view of a pipe wrench slipped onto a pipe
  • FlG. 2 is a section taken along line 11-11 in FIG. 1, and
  • FIG. 3 is a view similar to FIG. 1 but showing the pipe wrench holding the pipe.
  • the pipe wrench has two pairs of rings 1, 2.
  • the two outer rings 1 are interconnected by means of five bolts 6 and a bolt 4 so as to form a unit hereinafter referred to as ring unit 1-1 or the dog actuating ring.
  • the bolts 6 are secured by means of locking washers 7.
  • the two inner rings 2 are interconnected to form a ring unit hereinafter referred to as ring unit 2-2 or the holder ring. All of the bolts 4, 5, 6, have shoulders which hold the rings of the ring units in spaced relationship, and six dogs 3 of steel between the rings 2 are mounted on the bolts 5 and the bolt 10, respectively, so as to pivot thereon.
  • the dogs 3 are cylindrical and besides the holes for the bolts 5 they have radial slots 3a through which the bolts 6 and 4 respectively extend.
  • the two ring units 1-1 and 2-2 are turnable relative each other and the outer ring unit 1-1 is held in place relative to the ring unit 2-2 by means of the dogs 3.
  • a handle 8 has a bifurcated end portion 9 which is mounted so as to pivot on the bolt 10. Threaded guiding bolts 11 are fixed to the rings 1 of the outer ring unit 1-1 and they extend through elongated holes 12 in the end portion 9 of the handle.
  • the wrench is reversible, i.e., that it can be used to grip both clockwise and counterclockwise as desired, depending on in which direction from the released middle position the handle 8 and thereby the jaws 3 are pivoted.
  • the dogs 3 need not have circular section as shown but their gripping surfaces may have another arcuate form, and the number of dogs can of course be varied.
  • the gripping surfaces of the dogs 3 are serrated so as to improve the gripping although this is not shown in the drawings.
  • a pipe wrench comprising a holder ring having an opening through which a pipe or the like can be in serted, a number of dogs mounted in the holder ring so as to be pivotable about axes parallel to the axis of the opening, said dogs having arcuate pipe gripping surfaces, a dog actuating ring for positively pivoting all the dogs into engagement with the pipe when turned with respect to the holder ring, a lever pivotably mounted to one of said holder ring and dog actuating ring for pivoting about an axis parallel with the pivot axes of the dogs and engaging said other ring so as to turn the dog actuating ring with respect to the holder ring when the lever is moved into various angles with respect to the holder ring.
  • each dog has an arcuate gripping surface for engaging the pipe when the dog is pivoted in one direction from a released middle position and another arcuate gripping surface for engaging the pipe when the dog is pivoted in the other direction.
  • a wrench as claimed in claim 4 in which the dog actuating ring comprises two annular ring members interconnected by a number of bolts which extend through radial slots in the dogs.
  • a wrench as claimed in claim 4 in which the dogs have slots therein, the slots of said dogs slidably engaging respective bolts between the ring members.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Jigs For Machine Tools (AREA)
  • Catching Or Destruction (AREA)
US137306A 1970-04-28 1971-04-26 Pipe wrench Expired - Lifetime US3698266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702020625 DE2020625A1 (de) 1970-04-28 1970-04-28 Vorrichtung zum reibschluessigen Einspannen von vorzugsweise zylindrischen Werkstuecken

Publications (1)

Publication Number Publication Date
US3698266A true US3698266A (en) 1972-10-17

Family

ID=5769565

Family Applications (1)

Application Number Title Priority Date Filing Date
US137306A Expired - Lifetime US3698266A (en) 1970-04-28 1971-04-26 Pipe wrench

Country Status (5)

Country Link
US (1) US3698266A (de)
CA (1) CA918970A (de)
DE (1) DE2020625A1 (de)
GB (1) GB1306208A (de)
SE (2) SE7105226L (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494337A1 (fr) * 1980-09-16 1982-05-21 Mosing Donald Procede et dispositif pour connecter et deconnecter des organes tubulaires
US4676125A (en) * 1986-04-07 1987-06-30 Ardelean Jeffrey L Adjustable socket
EP0276161A2 (de) * 1987-01-22 1988-07-27 Inco Limited Selbsteinstellbarer Korb für Bohrmeissel
CN103056825A (zh) * 2012-12-17 2013-04-24 中交第一航务工程勘察设计院有限公司 拧卸钻杆的搓盘装置
CN105625966A (zh) * 2016-03-25 2016-06-01 北京南车时代机车车辆机械有限公司 一种锚杆钻机及其夹持器
CN112689548A (zh) * 2019-01-22 2021-04-20 株式会社欧利生 夹持机构、接合构件制造装置及接合构件的制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543547C2 (de) * 1975-09-30 1984-04-26 Rems-Werk Christian Föll und Söhne GmbH & Co, 7050 Waiblingen Werkstückspannvorrichtung an einer Gewindeschneidmaschine
DE9312316U1 (de) * 1993-08-18 1994-06-30 Cleiren, Alex, Kalmthou Werkzeug zum Verdrehen, insbesondere Verschrauben von Rohren
DE10035093A1 (de) 2000-07-17 2002-01-31 Fischer Georg Rohrleitung Spannelement

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494337A1 (fr) * 1980-09-16 1982-05-21 Mosing Donald Procede et dispositif pour connecter et deconnecter des organes tubulaires
US4372026A (en) * 1980-09-16 1983-02-08 Mosing Donald E Method and apparatus for connecting and disconnecting tubular members
US4676125A (en) * 1986-04-07 1987-06-30 Ardelean Jeffrey L Adjustable socket
EP0276161A2 (de) * 1987-01-22 1988-07-27 Inco Limited Selbsteinstellbarer Korb für Bohrmeissel
EP0276161A3 (en) * 1987-01-22 1989-03-29 Inco Limited Self-adjusting bit basket
US4862959A (en) * 1987-01-22 1989-09-05 Inco Limited Self-adjusting bit basket
CN103056825A (zh) * 2012-12-17 2013-04-24 中交第一航务工程勘察设计院有限公司 拧卸钻杆的搓盘装置
CN105625966A (zh) * 2016-03-25 2016-06-01 北京南车时代机车车辆机械有限公司 一种锚杆钻机及其夹持器
CN112689548A (zh) * 2019-01-22 2021-04-20 株式会社欧利生 夹持机构、接合构件制造装置及接合构件的制造方法
CN112689548B (zh) * 2019-01-22 2021-11-09 株式会社欧利生 夹持机构、接合构件制造装置及接合构件的制造方法

Also Published As

Publication number Publication date
DE2020625A1 (de) 1971-12-09
GB1306208A (de) 1973-02-07
SE378543B (de) 1975-09-08
CA918970A (en) 1973-01-16
SE7105226L (de) 1971-10-29

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CRAELIUS AKTIEBOLAG, SUNDBYBERG, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ATLAS COPCO AB;REEL/FRAME:003838/0265

Effective date: 19810212