US3883170A - Hoisting shackle with quick release attachment means - Google Patents

Hoisting shackle with quick release attachment means Download PDF

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Publication number
US3883170A
US3883170A US378029A US37802973A US3883170A US 3883170 A US3883170 A US 3883170A US 378029 A US378029 A US 378029A US 37802973 A US37802973 A US 37802973A US 3883170 A US3883170 A US 3883170A
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United States
Prior art keywords
shackle
locking bolt
hoisting
shackle body
anchoring element
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Expired - Lifetime
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US378029A
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English (en)
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Siegfried Fricker
Horst Reinkensmeier
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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
    • B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • 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
    • F16B45/00—Hooks; Eyes
    • F16B45/04—Hooks with sliding closing member
    • F16B45/049—Hooks with sliding closing member provided with means biasing the closing member
    • 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
    • F16B45/00—Hooks; Eyes
    • F16B45/04—Hooks with sliding closing member
    • F16B45/053—Hooks with sliding closing member provided with a cavity in a shank of the hook forming a track or way for the closing member
    • 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
    • F16B45/00—Hooks; Eyes
    • F16B45/04—Hooks with sliding closing member
    • F16B45/057—Hooks with sliding closing member the hook forming a loop or ring when interlocked with the closing member, i.e. the entire structure of the hook being loop shaped
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
    • A44C5/2009—Fasteners for straps, chains or the like for open straps, chains or the like of the ring type
    • A44C5/2014—Fasteners for straps, chains or the like for open straps, chains or the like of the ring type of the spring ring type

Definitions

  • ABSTRACT A hoisting shackle with quick release attachment means cooperating with non-recoverable anchoring elements in the load e.g., a prefab building component, the closed hollow shackle body having a slot across which a locking bolt can be engaged with the anchoring element. Retraction of the locking bolt for remote release can be accomplished by means of a Bowden cable.
  • the present invention relates to hoisting attachments, and in particular to hoisting shackles which have quick release attachments cooperating with special anchoring elements arranged in the load itself, or attachable thereto, and which are especially suitable for hoisting operations in connection with prefabricated building elements in the construction industry.
  • the use of recessed anchoring elements also offers cost economies.
  • the recesses themselves may represent a structural problem in that they are either too small for convenient access with conventional hooks, or are so large that they entail structural stress problems by reducing the overall bending resistence of the prefabricated building component.
  • the present invention proposes to attain the above objective by suggesting a hoisting shackle whose main body is in the form of a closed hollow ring comparable to a tubular torus, with a portion of the outer ring wall removed, and including an arcuate attachment bolt which is received in the annular cavity of the shackle body.
  • the arcuate locking bolt has a semi-annular outline and a circular cross section, the similarly curved annular cavity of the shackle body being likewise circular in cross section.
  • the shackle body has a transverse slot into which the eye portion of a cooperating anchoring element can be inserted to be retained therein by the locking bolt which traverses this slot.
  • the semi-annular locking bolt when not clamped in place by the forces acting on the anchoring element, tends to assume a position in the lower portion of the shackle body under the influence of gravity, thereby normally locking the shackle.
  • the preferred embodiment of the invention also offers an advantageous feature in regard to the release operation on the shackle, which merely requires a comparatively simple angular displacement of the locking bolt inside the annular cavity of the shackle.
  • This release operation is very safe and positive, because the shackle body itself is positioned against the eye portion of the anchoring element while the locking bolt is retracted inside the shackle body.
  • a still further advantageous feature of the present invention relates to the possibility of remotely actuating the release movement of the locking bolt.
  • This result is obtained in a very simple way by adding to the hoisting shackle of the invention a cable pull, for example a Bowden cable, which permits the release of the hoisting shackle from its anchoring element from a distance, for instance from the ground or from a safe place on the construction site.
  • a cable pull for example a Bowden cable
  • FIG. 1 shows in an elevational front view a hoisting shackle with manual release and a cooperating anchoring element representing a first embodiment of the invention
  • FIG. 2 shows an elevational cross section of a hoisting shackle similar to that of FIG. 1, but arranged for remotely controlled release representing a second embodiment of the invention
  • FIG. 3 shows a sectional side view of the hoisting shackle of FIGS. 1 or 2;
  • FIG. 4 shows the three different versions of anchorin g elements, designated as 4a, 4b, and 4c, as part of the preferred embodiments of the invention.
  • the hoisting shackle of the invention consists of a shackle body 1 of cast steel, the general outline of the shackle body being that of a ring, or more precisely of a hollow torus.
  • the shackle body 1 has an annular cavity which is open to the outside in the upper half of the shackle body, where the outer wall portion of the hollow torus profile is removed.
  • the upper half of the shackle body 1 thus has a U-shaped cross section, as can be seen in FIG. 3.
  • the shackle body is engaged by the eye of a connecting element 7, which may be a closed ring, a hook, or the loop of a cable. Since the inner profile of the aperture 6 of the shackle body 1 is rounded in at least the upper half of the body, the connecting element 7 is allowed to swing sideways in both directions from the vertical plane to accommodate conditions in which the direction of cable pull or chain pull is inclined up to approximately 60 from the vertical. Such a condition may obtain, when the hoisting harness includes two or more cables with hoisting shackles at their extremities.
  • an arcuate locking bolt 11 which occupies approximately one-half of the channel circumference and is guided inside the channel 10 for motion along a cir cular path.
  • the locking bolt 11 is introduced into cavity 10 of the shackle body 1 through the open upper half of the channel 10 and, because of the effect of gravity, will normally slide into the lower half of shackle body 1.
  • a nose 12 which extends radially from one end portion of the locking bolt 11 serves as an abutment element between bolt 11 and shackle body 1 and can also be used to move the locking bolt 11 upwardly out of the lower half of the cavity 10.
  • a vertical slot 13 which traverses the circular channel 10 of the body in that area without separating it structurally.
  • This slot 13 is adapted to receive the free extremity of a matching anchoring element 17 (FIGS. 1 and 3) which has a hole 18 through which the locking bolt 11 can be engaged, when the eye portion of the anchoring element 17 is brought into alignment with slot 13 of shackle body 1.
  • the shackle body 1 and locking bolt 11 cooperate with a matching anchoring element 17 in a manner comparable to a known necklace lock, any load or pull on the anchoring element 17 having the tendency of clamping the locking bolt 11 in place, thereby preventing an inadvertent or accidental release motionv
  • the hoisting shackle of the invention is designed to be used for the transportation of very heavy loads, such as prefabricated building components which are to be hoisted into place, and following which the hoisting harness is to be released from the component.
  • the anchoring element 17 in the prefab building component as an integral nonrecoverable part or so-called lost anchor which need not be removed from the prefab component during building assembly.
  • the hoisting shackle of the invention lends itself very advantageously to the use of such lost anchors, because it requires a minimum of space around the eye portion of the anchoring element. This can best be seen in the lower portion of FIG. 1 and in the three illustrations of FIG. 4 where several comparable embodiments of anchoring elements are illustrated.
  • the eye portion of each anchoring element 17 is recessed in relation to the upper surface of a building component 20 so that it does not interfere with other building components during and after as sembly.
  • FIGS. 1 and 4 show that the recess 19 required for the proposed lost anchor of the inven tion is shallow and advantageously rounded in all direc tions. The latter thus also serves to positively guide the hoisting shackle into engagement with the eye portion of the anchoring element 17.
  • the entry guidance between the hoisting shackle l and the free eye portion of the anchoring element 17 can be further enhanced by providing a pointed shape at the extremity of the anchoring element 17 and by giving the hole 18 of its eye portion an elongated configuration.
  • the reinforced connection web 2 which forms that portion of the shackle body 1 which is located above slot 13 may be provided with a matching configuration so that, when the hoisting shackle l is forcibly set onto the free end of the anchoring element 17, the hole 18 of the latter is automatically placed in alignment with the locking bolt 11 inside the circular channel 10 of the shackle body 1.
  • version a shows a pointed upper end
  • version b shows a bevelled end portion
  • version c has the rounded configuration of a loop.
  • the first two versions of the anchoring element are conveniently produced as stampings, the lower end portion of the stamping being longitudinally split so as to form two anchoring legs which are bent in opposite directions.
  • the embodiment c shows an anchoring element 17 obtained from a rod which is bent into the shape ofa twin hook, the loop portion on its upper end providing both the rounded entry configuration for its guidance into slot 13 of shackle body 1 and an opening equivalent to the hole 18 for cooperation with the locking bolt 11.
  • the anchoring element 17 is in each case incorporated in the prefabricated building component by placing it into the component mold after the concrete has been poured, but before the latter has set.
  • the recess 19 around the high portion of the anchoring element 17 is preferably obtained by using a core piece having the shape of the recess, the core piece being attached to the eye portion of the anchoring element 17.
  • This recess core piece may be of rubber or plastic, for example, and it may have a flat end face which, when aligned with the corresponding end face of the building component properly positions the anchoring element 17 as to its depth and orientation.
  • FIG. 2 is further illustrated a modified embodiment of the invention in which the locking bolt 11 can be withdrawn into its released position by a remotely controlled release mechanism.
  • This release mechanism may for instance be in the form of a Bowden-type cable pull which includes a cable which is attached to the nose 12 of locking bolt 11 and a removable sheath bracket 22 which is mounted on the shackle body 1 in the area of the annular cavity 10.
  • the release of the hoisting shackle from the anchoring element 17 can be controlled from a remote position by means of the release cable, thereby eliminating the need for a worker to be in the immediate vicinity of the hoisting shackle to affect its release.
  • the remote release feature thus eliminates risky climbing and balancing maneuvers which may otherwise be necessary for the release of the hoisting harness from the building component after emplacement of the latter.
  • the inadvertent or accidental retraction and release of the locking bolt 11 is effectively prevented by the load itself, which causes the locking bolt 11 to be firmly clamped inside the annular cavity of the shackle body 1.
  • the Bowden cable release mechanism may further include a return spring (not shown in drawing) which surrounds the exposed cable position in the space between the nose l2 and the sheath bracket 22 and which urges the locking bolt 11 into its locking position.
  • a return spring (not shown in drawing) which surrounds the exposed cable position in the space between the nose l2 and the sheath bracket 22 and which urges the locking bolt 11 into its locking position.
  • the safety advantages of the remoterelease feature are particularly advantageous in the case where large and heavy prefabricated wall panels are to be installed, and where it would be difficult for a worker to reach the hoisting attachments on the upper end of the installed panel with his hand.
  • the hoisting shackle of the invention is suitable for application with the heaviest building components, including components weighing up to 12 Mp (12,000 tons).
  • the remote-controlled release mechanism may include means other than the Bowden cable, such as, for
  • release means which are operable through the movement of the hoisting harness itself, or which are operable by means of a long rod or the like.
  • the latter may include a cocked release spring arranged inside the annular cavity 10 of shackle body 1 and a trigger mechanism which when actuated, allows the release spring to retract the locking bolt 11.
  • a hoisting shackle system with a quick release attachment device for attaching a hoisting harness to a load at one or more attachment points comprising in combination:
  • a ring-shaped closed shackle body having an annular cavity giving it a shape similar to that of an upright hollow torus and being thus adapted to form an articulated, chain-link-type end member of a hoisting harness or the like of which a hook or end loop can reach through the central aperture of the torus, the shackle body having an upper arcuate portion in which the outer peripheral wall of the hollow torus structure is removed so as to leave a radially open, U-shaped cross-sectional wall profile around its annular cavity;
  • an anchoring element capable of being fixedly attached to a load and having an upstanding eye portion with a transverse opening, the eye portion fitting into the radial slot of the shackle body in such a way that the locking bolt can be inserted through its opening, thereby attaching the anchoring ele- 5 ment to the shackle body;
  • the load is a prefabricated building component of concrete;
  • the anchoring element is permanently embedded in the concrete of the building component in such a way that only its upstanding eye portion protrudes from the concrete; and
  • the building component includes a recess in its surface surrounding said eye portion, the recess having an outline which matches approximately that portion of the shackle body which reaches into the recess when the shackle body is attached to the anchoring element.
  • the anchoring element is a steel bar of flat section whose upper end portion forms the eye portion and whose lower end portion includes at least one laterally extending extremity by which it is retained in the concrete of the building component.
  • the anchoring element is a bent steel rod in the shape of a twin hook, with a central hairpin-type loop forming the upwardly extending eye portion and two hook portions on its lower end retaining it in the concrete of the building component.
  • the locking bolt is of such a length that one of its extremities reaches upwardly into the open, U- shaped portion of the shackle body when the other end portion traverses its radial slot in the locked position; and the releasing means includes a radially extending actuating nose on the upper end portion of the locking bolt.
  • the releasing means includes means for remotely actuating the reaction of the locking bolt from its locked position.
  • the remote-actuating means further includes a return spring surrounding the cable between the sheath bracket and the cable attachment, the return spring urging the locking bolt into its locked position.
  • a generally torus-shaped, unitary shackle body having a central annular cavity of circular outline arranged therein; a hook or end link of the hoisting harness being engageable through the center opening of the torus shape;
  • an arcuate locking bolt received in the annular cavity of the shackle body so as to be guided therein for movement along the center circle of the cavity; a radial opening in the shackle body of such width and arcuate length that the locking bolt can be inserted therethrough; I a wall reinforcement on that portion of the shackle body which is located diametrally opposite its radial opening, the wall reinforcement occupying a generally segment-shaped portion of the center opening of the torus; and
  • a radial slot in the shackle body in angular alignment with its wall reinforcement the slot having opposing slot flanks which extend substantially perpendicularly to said annular cavity from the periphery of the torus towards said reinforcment, without cutting across the latter; and wherein the locking bolt is movable between a locked position in which a portion thereof extends across said radial slot, serving as a load-carrying member, and a release position in which the bolt is positioned outside said slot.
  • the radial opening in the shackle body occupies approximately one-half of the torus circumference, the torus cross section in the area of said opening having the shape of a U-channel.
  • a hoisting shackle as defined in claim 13 wherein the retracting means includes a Bowden cable attached by one end to the locking bolt and a sheath bracket on the shackle body positioning one end of the Bowden cable sheath at a distance from where the cable is attached to the locking bolt. 15. A hoisting shackle as defined in claim 14,
  • retracting means further includes a return spring surrounding the Bowden cable end portion between the sheath bracket and the cable attachment, the spring urging the locking bolt into its locked position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US378029A 1972-08-16 1973-07-10 Hoisting shackle with quick release attachment means Expired - Lifetime US3883170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2240171A DE2240171C3 (de) 1972-08-16 1972-08-16 Transportanker

Publications (1)

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US3883170A true US3883170A (en) 1975-05-13

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US (1) US3883170A (de)
AT (1) AT328665B (de)
BE (1) BE801130A (de)
CA (1) CA980981A (de)
CH (1) CH554805A (de)
DE (1) DE2240171C3 (de)
DK (1) DK141516C (de)
FI (1) FI50960C (de)
FR (1) FR2196286B1 (de)
GB (1) GB1418714A (de)
IT (1) IT987738B (de)
NL (1) NL162166C (de)
NO (1) NO136217C (de)
SE (1) SE399865B (de)

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US4173856A (en) * 1977-02-03 1979-11-13 Siegfried Fricker Anchor for the tilt-up and transport of prefabricated building components
US4273050A (en) * 1976-01-30 1981-06-16 Jet Research Center, Inc. Placement method for Q.D. charges using minimum diving time
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US4368914A (en) * 1981-01-12 1983-01-18 Superior Concrete Accessories, Inc. Pickup unit for releasable connection to a partially embedded member
US4538850A (en) * 1983-03-07 1985-09-03 Vito Nicholas A De Hoisting and shackle system
US4615554A (en) * 1983-07-27 1986-10-07 Deha Baubedarf Gmbh & Co. Kg Screw-in fastener for a tubular anchor embedded in a concrete element
US4634164A (en) * 1984-04-28 1987-01-06 Siegfried Fricker Hoisting assembly with quick-release hoisting shackle
WO1987000823A1 (en) * 1985-08-07 1987-02-12 Richmond Screw Anchor Co. Hoist coupling
US4703595A (en) * 1984-11-30 1987-11-03 Dr. Ing. Ernst Haeussler Coupler for hanging precast concrete panels from a hoist
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US4731910A (en) * 1987-06-22 1988-03-22 Purcell Elmor G Hooking mechanism
US4930269A (en) * 1989-03-22 1990-06-05 The Burke Company Apparatus and method for lifting tilt-up wall constructions
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US5014473A (en) * 1989-03-22 1991-05-14 The Burke Company Apparatus and method for lifting tilt-up wall constructions
US5094047A (en) * 1989-03-22 1992-03-10 The Burke Company Apparatus and method for lifting tilt-up wall constructions
US5155954A (en) * 1991-02-08 1992-10-20 Etablissements A. Mure Device for temporary retention of a lifting element on a metal surface of a form during the concrete pouring and setting phases of a prefabricated concrete member
US5226265A (en) * 1989-03-22 1993-07-13 The Burke Company Apparatus and method for lifting tilt-up wall constructions
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US5809703A (en) * 1997-01-15 1998-09-22 Mmi Products, Inc. Slotted insert with increased pull-out capacity
US6142546A (en) * 1998-10-15 2000-11-07 Novitec International B.V. Ring clutch hoisting assembly
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EP1424304A1 (de) * 2002-11-29 2004-06-02 Cetram Pty Limited Transportanker mit Kupplung
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US20060137286A1 (en) * 2004-12-21 2006-06-29 David Zartman Anchor for structural joints
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WO2008154673A1 (en) * 2007-06-21 2008-12-24 Woodstock Percussion Pty Ltd Releasable lifting link
US20100011678A1 (en) * 2008-07-15 2010-01-21 Mimi Management Services Lp Double anchor and lifting shackle for concrete slabs
US20100061827A1 (en) * 2008-09-10 2010-03-11 Reed H Wade Riser lifting tool
AU2004200854B2 (en) * 2003-04-14 2010-05-13 Cetram Pty Limited Lifting anchors
US20100258980A1 (en) * 2009-04-09 2010-10-14 Fore Iii Pat Halton Systems and Methods of Concrete Apparatus with Incorporated Lifter
US20170073903A1 (en) * 2015-09-15 2017-03-16 Incubator Industries, L.P. Mat
US10145408B2 (en) * 2016-11-30 2018-12-04 Honda Motor Co., Ltd. Lifting hook and methods of using the same
US10232200B2 (en) * 2017-03-14 2019-03-19 Silverline Safety Systems Corp. Recessed concrete anchor
CN112357750A (zh) * 2020-09-30 2021-02-12 沪东中华造船(集团)有限公司 一种船舶分段吊装件的使用方法
US10968645B2 (en) 2018-03-20 2021-04-06 Meadow Burke, Llc Anchor and clutch assembly
CN115947229A (zh) * 2023-03-15 2023-04-11 胜利油田高原石油装备有限责任公司 一种具有自动润滑功能的天车

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DE2708787B2 (de) * 1977-03-01 1980-12-11 Ernst Dr.-Ing. 4300 Essen Haeussler Vorrichtung zum Anhängen eines Betonfertigteils an ein Hebezeug
SE435369B (sv) * 1977-03-01 1984-09-24 Ernst Haeussler Lyftorgan for betongelement med forankringsbult.
EP0049708B1 (de) * 1980-10-10 1985-04-17 Pfeifer Seil- und Hebetechnik GmbH & Co. Vorrichtung zum Anhängen eines Betonfertigteils an ein Hebezeug
EP0059228B1 (de) * 1981-02-27 1985-04-17 Pfeifer Seil- und Hebetechnik GmbH & Co. Sicherheitseinrichtung für hakenartige Anschlagmittel an Hebezeugen
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US4538850A (en) * 1983-03-07 1985-09-03 Vito Nicholas A De Hoisting and shackle system
US4615554A (en) * 1983-07-27 1986-10-07 Deha Baubedarf Gmbh & Co. Kg Screw-in fastener for a tubular anchor embedded in a concrete element
US4634164A (en) * 1984-04-28 1987-01-06 Siegfried Fricker Hoisting assembly with quick-release hoisting shackle
AU573816B2 (en) * 1984-04-28 1988-06-23 Halfen Gmbh & Co Kommanditgesellschaft Hoisting assembly with shackle
US4703595A (en) * 1984-11-30 1987-11-03 Dr. Ing. Ernst Haeussler Coupler for hanging precast concrete panels from a hoist
WO1987000823A1 (en) * 1985-08-07 1987-02-12 Richmond Screw Anchor Co. Hoist coupling
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US4724587A (en) * 1985-10-28 1988-02-16 Foy Peter S Harness plate
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WO1990010764A1 (en) * 1989-03-07 1990-09-20 Ramset Fasteners (Aust.) Pty. Limited Lifting anchors and clutches for lifting anchors
US5094047A (en) * 1989-03-22 1992-03-10 The Burke Company Apparatus and method for lifting tilt-up wall constructions
US5226265A (en) * 1989-03-22 1993-07-13 The Burke Company Apparatus and method for lifting tilt-up wall constructions
US5014473A (en) * 1989-03-22 1991-05-14 The Burke Company Apparatus and method for lifting tilt-up wall constructions
US4930269A (en) * 1989-03-22 1990-06-05 The Burke Company Apparatus and method for lifting tilt-up wall constructions
US5155954A (en) * 1991-02-08 1992-10-20 Etablissements A. Mure Device for temporary retention of a lifting element on a metal surface of a form during the concrete pouring and setting phases of a prefabricated concrete member
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US6142546A (en) * 1998-10-15 2000-11-07 Novitec International B.V. Ring clutch hoisting assembly
US20050017521A1 (en) * 2001-09-05 2005-01-27 Lawley Derek Trent Orientation apparatus
US7562919B2 (en) * 2001-09-05 2009-07-21 ITW Zealand Limited Lifting eye releasing orientation apparatus with cable guiding feature
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US20030213206A1 (en) * 2002-05-01 2003-11-20 Universal Form Clamp Co., Inc. Anchor for embedment in concrete members
US6647674B1 (en) * 2002-05-08 2003-11-18 Dayton Superior Corporation Erection anchor for concrete panel
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US20050044811A1 (en) * 2003-08-27 2005-03-03 Universal Form Clamp Co., Inc. Ring lift anchor
US20050055958A1 (en) * 2003-08-27 2005-03-17 Universal Form Clamp Co., Inc. W foot anchor
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US7380849B2 (en) * 2004-10-25 2008-06-03 The Caldwell Group, Inc. Remote release apparatus and method for lifting and releasing a load
US20060087137A1 (en) * 2004-10-25 2006-04-27 The Caldwell Group, Inc. Remote release apparatus and method for lifting and releasing a load
US20060137286A1 (en) * 2004-12-21 2006-06-29 David Zartman Anchor for structural joints
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WO2008154673A1 (en) * 2007-06-21 2008-12-24 Woodstock Percussion Pty Ltd Releasable lifting link
US20100176614A1 (en) * 2007-06-21 2010-07-15 Woodstock Percussion Pty Ltd Releasable lifting link
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CN101835948B (zh) * 2007-06-21 2013-07-10 伍德斯托克泊卡逊有限公司 可拆卸的提升链接装置
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US20100011678A1 (en) * 2008-07-15 2010-01-21 Mimi Management Services Lp Double anchor and lifting shackle for concrete slabs
US8291649B2 (en) 2008-07-15 2012-10-23 Meadow Burke, Llc Double anchor and lifting shackle for concrete slabs
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US7905063B2 (en) 2008-07-15 2011-03-15 Mmi Products, Inc. Double anchor and lifting shackle for concrete slabs
EP2161234A1 (de) 2008-09-03 2010-03-10 MMI Management Services LP Doppelanker und Transportanker für Betonplatten
US20100061827A1 (en) * 2008-09-10 2010-03-11 Reed H Wade Riser lifting tool
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US8852490B2 (en) * 2009-04-09 2014-10-07 Pat Halton Fore, III Systems and methods of concrete apparatus with incorporated lifter
US9296125B2 (en) 2009-04-09 2016-03-29 Pat Halton Fore, III Systems and methods of concrete apparatus with incorporated lifter
US20170073903A1 (en) * 2015-09-15 2017-03-16 Incubator Industries, L.P. Mat
US10060079B2 (en) * 2015-09-15 2018-08-28 Medencentive, Llc Mat
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US10232200B2 (en) * 2017-03-14 2019-03-19 Silverline Safety Systems Corp. Recessed concrete anchor
US10968645B2 (en) 2018-03-20 2021-04-06 Meadow Burke, Llc Anchor and clutch assembly
US11555316B2 (en) 2018-03-20 2023-01-17 Meadow Burke, Llc Anchor and clutch assembly
CN112357750A (zh) * 2020-09-30 2021-02-12 沪东中华造船(集团)有限公司 一种船舶分段吊装件的使用方法
CN112357750B (zh) * 2020-09-30 2022-12-13 沪东中华造船(集团)有限公司 一种船舶分段吊装件的使用方法
CN115947229A (zh) * 2023-03-15 2023-04-11 胜利油田高原石油装备有限责任公司 一种具有自动润滑功能的天车
CN115947229B (zh) * 2023-03-15 2023-06-09 山东高原油气装备有限公司 一种具有自动润滑功能的天车

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Publication number Publication date
AT328665B (de) 1976-04-12
FR2196286B1 (de) 1977-12-30
DK141516C (da) 1980-09-29
ATA276673A (de) 1975-06-15
DE2240171B2 (de) 1974-10-10
DE2240171C3 (de) 1975-06-05
NL7304963A (de) 1974-02-19
SE399865B (sv) 1978-03-06
FI50960C (fi) 1976-09-10
NL162166B (nl) 1979-11-15
DK141516B (da) 1980-04-08
NL162166C (nl) 1980-04-15
NO136217C (no) 1977-08-03
IT987738B (it) 1975-03-20
DE2240171A1 (de) 1974-03-07
NO136217B (de) 1977-04-25
FR2196286A1 (de) 1974-03-15
GB1418714A (en) 1975-12-24
CH554805A (de) 1974-10-15
BE801130A (fr) 1973-10-15
FI50960B (de) 1976-05-31
CA980981A (en) 1976-01-06

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