US3612596A - Hook lock for traveling block - Google Patents

Hook lock for traveling block Download PDF

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Publication number
US3612596A
US3612596A US866849A US3612596DA US3612596A US 3612596 A US3612596 A US 3612596A US 866849 A US866849 A US 866849A US 3612596D A US3612596D A US 3612596DA US 3612596 A US3612596 A US 3612596A
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US
United States
Prior art keywords
hook
lock
locking arm
adapter
locking
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
US866849A
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English (en)
Inventor
Wayne L Brackin
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.)
NOV Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of US3612596A publication Critical patent/US3612596A/en
Assigned to IRI INTERNATIONAL CORPORATION, PAMPA, TEXAS, A CORP. OF DE. reassignment IRI INTERNATIONAL CORPORATION, PAMPA, TEXAS, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DRESSER INDUSTRIES, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks

Definitions

  • a lock is provided which fixes the hook on a traveling block with respect to the spring housing and block, at the same time allowing the hook to travel in a vertical direction the customary length of the spring within the housing.
  • a pivoted L-shaped member engages an index ring by a downward pull and also disengages the index ring by a downward pull, thus allowing for ease of utility.
  • This invention relates generally to the hoisting equipment used by drilling rigs to handle the pipe used to drill, complete and service a well.
  • the invention relates to a lock used with that portion of the hoisting equipment which connects the traveling block to both the elevators and the swivel nd which is commonly called the hook.
  • the lock mechanism of this invention has utility when used with most hook and traveling block assemblies. Examples of such hook assemblies are described in U.S. Pat. No. 3,278,163 entitled Hook Assembly, issued on Oct. 11, 1966, and U.S. Pat. No. 3,434,696, entitled Hook Assembly, issued Mar. 25, 1969. It should be appreciated, however, that since most hook assemblies can be modified to use the lock of the present invention, the particular hook assembly shown with the lock is not to be construed as a limiting factor upon the invention.
  • the objects of the invention are accomplished, briefly, by the use of a lock ann which engages an index ring to lock the hook against rotation with respect to the block. Means are provided for releasing and engaging the lock arm with respect to the index ring by simple vertical downward pull movements.
  • FIG. 1 is a side elevational view, partly in cross section, of a traveling block and hook assembly having the hook lock assembly according to the invention
  • FIG. 2 is a front elevational view of the apparatus according to FIG. 1;
  • FIG 3 is a plan view of the index ring engaged by the lock arm according to the invention.
  • FIG. 4 is a side elevational view, partly in cross section, of the lock arm assembly according to the invention.
  • FIG. 5 is a front elevational view, partly in cross section, of the assembly of FIG 4.
  • traveling portion 10 of hoisting equipment commonly used on a drilling rig for handling pipe, with the exception of the elevators.
  • the traveling portion consists of a traveling block and a hook assembly, generally indicated by the number 16.
  • Traveling block 10 includes a plurality of sheaves 11, five being shown in the drawing (see FIG. 2) but which can consist of any given number of sheaves.
  • a crown block (not shown) supports the traveling block through the hoisting lines 18.
  • hook assembly 16 Rotatably attached to the traveling block is hook assembly 16 which includes an adapter section 20 and a hook section 21.
  • the hook assembly 21 is arranged for rotation with respect to the adapter section 20, as would be observed at the surface 22 of FIG. 2.
  • the hook assembly 21 has an extension member 23 extending through the adapter member 20, having a slightly enlarged cylindrical portion 24 at the upper most end thereof.
  • An index ring member 25, shown in another view in FIG. 3, is secured to the uppermost end surface of the cylindrical member 24 by a plurality of connectors 26 through the mounting holes in the index member 25.
  • a spring 30 is mounted under the index ring 25 around the cylindrical extension member 23 in a manner conventional to the art of traveling block and hook assemblies.
  • Such springs are provided with sufficient strength to not only lift hook 21, but also to lift a stand of pipe supported by the hook section. Then when a stand is broken out of the pipe string, the spring will pull the pin of the lower tool joint out of the box of the next stand, therebv eliminating the necessity of raising the stand again before it can be racked.
  • a plunger 31 is attached to a plate 32 and adapted to guide the member 24 whenever the hook member 21 is experiencing a load sufficient to pull down on the spring 30.
  • the adapter and hook assembly 16 is also arranged to pivot about the pin 40, best illustrated in FIG. 2, with respect to the traveling block assembly 10.
  • the hook lock assembly 50 with its locking arm 51, better illustrated in FIGS. 4 and 5, is shown in FIG. 1 in its relationship to the index ring 25.
  • FIG. 3 illustrates a top plan view of the index ring 25, having a plurality of mounting holes 27.
  • the index ring 25 also has a plurality of slots 28 such that the lock arm which is described with respect to FIGS. 4 and 5 can be more easily engaged with the index ring.
  • the lock assembly 50 includes an L-shaped locking am 51 which has one of its ends pivoted for movement around a pin '52 connected to the adapter assembly 20. It should beappreciated that it is the edge 53 of the locking arm 51 which engages one of the slots 28 in the index ring 25 of FIG. 3.
  • a pin 54 is provided from the adapter 20 for engagement with the notched out area 49 of the locking arm 51 to provide proper position for thealignment of the lock rod and the two holes described hereinafter.
  • a spring 55 attached to the adapter assembly 20 causes the locking arm 51 to be forced into engagement with the index ring 25 when no other forces are present.
  • a lock guide housing 56 shown in cross section in FIG.
  • a connector 57 Slidably mounted within the lock guide housing 56 is a lock rod 58 having an eye at the bottom thereof. Also slidably mounted within the housing 56 is a lock guide assembly 59 surrounding the lock rod 58 and having a U-shaped upper extremity for access by the nonpivoted end of the locking arm 51.
  • the lock guide assembly 59 is pinned to the lock rod 58 by a pin 60.
  • a spring 61 causes the lock rod 58 and lock guide assembly 59 to be pushed upward into engagement with the holes 62 and 63 until lock rod member 58 is disengaged as will be explained hereinafter.
  • the locking arm 51 has a pair of holes 62 and 63 for receiving the lock rod 58.
  • the lock rod 58 has a cylindrical-shaped upper extremity and the holes 62 and 63 are cylindrical-shaped holes for receiving the lock rod 58.
  • the upper extremity of the lock rod 58 could be of any shape desired and that the holes 62 and 63 could be made in any manner desired for receiving the lock rod 58.
  • the spring 55 forces the locking bar 51 into engagement with one of the slots 28 on the index ring 25 and that the lock rod 58 is positioned in the hole 63, thus locking the bar 51 in that closed position.
  • the pin 54 provides the proper position for the alignment of the rod 58 in the hole 63.
  • the lock guide assembly 59 and lock rod 58 are together pulled down, disengaging the lock rod 58 from the hole 63.
  • the top of the locking rod 58 moves downward far enough for the rod 58 to leave the hole 63 before the locking arm 5! begins to pivot responsive to the downward pulling force.
  • the downward pulling movement on the slot 65 then causes the locking arm 51 to be pivoted about the pin 52, thus disengaging the locking arm 51 from the index ring 25.
  • the locking rod 58 engages the hole 62 for causing a securely locked open position.
  • the eye of the locking rod 58 is pulled down, as by a rope or cable attached thereto (not illustrated).
  • the spring member 55 then causes the locking rod 51 to be pushed over into the fully engaged position within the index ring 25.
  • a book lock assembly including a hook and an adapter for attaching the hook to a traveling block wherein the hook is pivotally attached to the adapter to allow the hook to pivot with respect to the adapter, comprising:
  • a movable locking arm attached to said adapter, said locking arm comprising an L-shaped member pivoted about one of its ends and having first and second locking rod receptacles;
  • a springJoaded locking rod slidably attached to said adapter adapted to be successively inserted and removed from said receptacles in conjunction with the movement of said locking arm;
  • said means for disengaging said locking arm from .said receiving member comprising means for applying a downward vertical force to the nonpivoted end of said L- shaped member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US866849A 1969-10-16 1969-10-16 Hook lock for traveling block Expired - Lifetime US3612596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86684969A 1969-10-16 1969-10-16

Publications (1)

Publication Number Publication Date
US3612596A true US3612596A (en) 1971-10-12

Family

ID=25348560

Family Applications (1)

Application Number Title Priority Date Filing Date
US866849A Expired - Lifetime US3612596A (en) 1969-10-16 1969-10-16 Hook lock for traveling block

Country Status (4)

Country Link
US (1) US3612596A (de)
AT (1) AT302219B (de)
FR (1) FR2064381B1 (de)
GB (1) GB1302457A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333928A1 (de) * 1982-09-24 1984-04-26 The Crosby Group, Inc., 74101 Tulsa, Okla. Vorgespannte hakenvorrichtung
US20030151036A1 (en) * 2002-02-08 2003-08-14 Smith Chad R. Method for evening tension in a twisted pair electric cable
US20120119529A1 (en) * 2010-11-15 2012-05-17 Gordon Chih Rotating post obstruct structure for bearing block
CN107458960A (zh) * 2017-09-18 2017-12-12 贾玉亮 一种具有自锁功能的旋转吊钩
CN112079245A (zh) * 2020-07-21 2020-12-15 太原重工股份有限公司 分体式吊钩
US20210139289A1 (en) * 2018-03-21 2021-05-13 Liebherr-Werk Biberach Gmbh Spring lifting device for a crane

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2174099C2 (ru) * 1999-12-06 2001-09-27 Открытое акционерное общество Алтайский научно-исследовательский институт технологии машиностроения Комплекс средств для получения активированного угля
RU2174097C1 (ru) * 2000-01-24 2001-09-27 Открытое акционерное общество Алтайский научно-исследовательский институт технологии машиностроения Комплекс средств для получения активированного угля с печью для дожигания сопутствующих продуктов

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158372A (en) * 1936-08-03 1939-05-16 Nat Supply Co Spring hook
US2158373A (en) * 1937-04-05 1939-05-16 Nat Supply Co Spring hook
US2331341A (en) * 1942-01-09 1943-10-12 Byron Jackson Co Drilling hook
US2508595A (en) * 1946-07-31 1950-05-23 Byron C Christensen Combination traveling block and swivel connection
DE878783C (de) * 1950-11-03 1953-06-05 Salzgitter Maschinen Ag Rollenblock fuer Rotarybohrbetrieb
US2661232A (en) * 1951-05-21 1953-12-01 Nat Supply Co Drilling hook assembly
US2814522A (en) * 1952-11-12 1957-11-26 Web Wilson Oil Tools Inc Connector-hook

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158372A (en) * 1936-08-03 1939-05-16 Nat Supply Co Spring hook
US2158373A (en) * 1937-04-05 1939-05-16 Nat Supply Co Spring hook
US2331341A (en) * 1942-01-09 1943-10-12 Byron Jackson Co Drilling hook
US2508595A (en) * 1946-07-31 1950-05-23 Byron C Christensen Combination traveling block and swivel connection
DE878783C (de) * 1950-11-03 1953-06-05 Salzgitter Maschinen Ag Rollenblock fuer Rotarybohrbetrieb
US2661232A (en) * 1951-05-21 1953-12-01 Nat Supply Co Drilling hook assembly
US2814522A (en) * 1952-11-12 1957-11-26 Web Wilson Oil Tools Inc Connector-hook

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333928A1 (de) * 1982-09-24 1984-04-26 The Crosby Group, Inc., 74101 Tulsa, Okla. Vorgespannte hakenvorrichtung
US20030151036A1 (en) * 2002-02-08 2003-08-14 Smith Chad R. Method for evening tension in a twisted pair electric cable
US6921059B2 (en) * 2002-02-08 2005-07-26 General Cable Technologies, Corp. Method for evening tension in a twisted pair electric cable
US20120119529A1 (en) * 2010-11-15 2012-05-17 Gordon Chih Rotating post obstruct structure for bearing block
CN107458960A (zh) * 2017-09-18 2017-12-12 贾玉亮 一种具有自锁功能的旋转吊钩
CN107458960B (zh) * 2017-09-18 2019-04-12 贾玉亮 一种具有自锁功能的旋转吊钩
US20210139289A1 (en) * 2018-03-21 2021-05-13 Liebherr-Werk Biberach Gmbh Spring lifting device for a crane
US11932516B2 (en) * 2018-03-21 2024-03-19 Liebherr-Werk Biberach Gmbh Spring lifting device for a crane
CN112079245A (zh) * 2020-07-21 2020-12-15 太原重工股份有限公司 分体式吊钩

Also Published As

Publication number Publication date
GB1302457A (de) 1973-01-10
AT302219B (de) 1972-10-10
FR2064381B1 (de) 1975-07-04
FR2064381A1 (de) 1971-07-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: IRI INTERNATIONAL CORPORATION, PAMPA, TEXAS, A COR

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DRESSER INDUSTRIES, INC.;REEL/FRAME:004711/0917

Effective date: 19850731