US3191983A - Self-leveling cargo container spreader - Google Patents

Self-leveling cargo container spreader Download PDF

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Publication number
US3191983A
US3191983A US321891A US32189163A US3191983A US 3191983 A US3191983 A US 3191983A US 321891 A US321891 A US 321891A US 32189163 A US32189163 A US 32189163A US 3191983 A US3191983 A US 3191983A
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United States
Prior art keywords
frame
plane
spreader
shackle
relation
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
US321891A
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English (en)
Inventor
Alfonso T Gaglione
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.)
National Castings Co
Original Assignee
National Castings Co
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
Priority to NL134517D priority Critical patent/NL134517C/xx
Application filed by National Castings Co filed Critical National Castings Co
Priority to US321891A priority patent/US3191983A/en
Priority to NO155406A priority patent/NO118126B/no
Priority to GB44815/64A priority patent/GB1056680A/en
Priority to BE655288D priority patent/BE655288A/xx
Priority to FR993987A priority patent/FR1413559A/fr
Priority to NL6412927A priority patent/NL6412927A/xx
Priority to ES0305718A priority patent/ES305718A1/es
Priority to DEN25784A priority patent/DE1258057B/de
Application granted granted Critical
Publication of US3191983A publication Critical patent/US3191983A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • B66C1/101—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 for containers

Definitions

  • the present invention relates to lifting devices such as spreaders of rigid frame-like construction for lifting cargo containers. It refers particularly to spreaders of the so-called single-point suspension type, such as characterized by a standard crane having a single cable-suspended hook.
  • Cargo containers are seldom loaded uniformly so that their center of gravity will coincide with the center of their lading space. When these centers are horizontally separated, a container lifted by a spreader in single point connection with a crane will assume a list or canted position which renders the positioning or handling of the container more diflicult. If the container lading is not tightly arranged, it may shift to exaggerate the condition of the list. As many freight-handling terminals are not equipped with the special multiple lift point cranes for handling such containers, the practice is to transfer containers from carrier to carrier by such equipment as is available, usually by the standard single-point suspension crane.
  • Another object is to provide a spreader in accordance with the foregoing object wherein the spreader is constructed with a rugged design permitting the handling of container loads of the order of twenty tons or more, and an extremely simple mechanical arrangement contributing to great dependability and strength.
  • Afurther object is to provide a self-leveling spreader for use in handling heavy container loads by standard single lift point cranes and to thereby minimize the need for the more expensive multiple lift point cranes;
  • 'A still further object is to provide a self-leveling spreader which incorporates apparatus responsive to unwanted variations from a desired position or orientation and is capable of automatically correcting such variations.
  • the invention in brief, resides in a spreader centrally suspendable at one point and comprising a frame suspended from a central supraposed shackle by a pluralityofflexible. tension members radiating downwardly from the shackle to the frame andextending at initially the frame around the sheaves or otherguides attached to the frame. Such guides'are located at opposite sides of a vertical plane transversely bisecting the frame toward a level adjusting means or device connected with a central portion of the frame.
  • the level adjusting device is movable with respect to the frame. to pull one portion of the tension members at 3,191,983 Patented June 29, 1965 one side of the plane over respective guides toward the plane while feeding or discharging the portion of tension members on the other side of the plane toward respective guides to move lengthwise thereover.
  • secondary guides or sheaves disposed be tween the above-named sheaves and the anchor member for maintaining the cables in registry or tracking alignment with the first-named sheaves; power or manual mechanism for traversing the anchor member lengthwise of its tract; sensing means cooperating with the power actuator for effecting automatic leveling of the spreader; pulley or sheave arrangements which promote compactness of the spreader as a whole; and structural arrangements which simplify the mounting of the sheaves in favor of simplicity of the spreader construction.
  • FIG. 1 is a plan view of the spreader with the upper shackle portion removed to better illustrate the frame portion and parts associated therewith;
  • FIG.,2 is a vertically shortened longitudinal elevation of the spreader shown in FIG. 1 including the shackle;
  • FIG. 3 is a plan of an anchor member slidably mounted on the frame of the spreader showing also an alternate position in dot-dash lines;
  • FIG. 4 is a fragmentary elevation showing primarily the anchor member and the mounting therefor as viewed along line IV-IV of FIG. 1;
  • FIG. 5 is a diagram of a hydraulic mechanism for shifting the cables or other suspension medium relative to the frame in effecting leveling of the frame relative to the overhead shackle;
  • FIG. 6 is an electrical diagram illustrating an electrical circuit for actuating the hydraulic mechanism represented by the diagram of FIG. 6.
  • FIGS. 1 and 2 are views of a spreader 4, i.e., a cargo container lifting implement, which depicts as its major portions, a frame 5, a shackle 6, an anchor member 7, a plurality of cables 8a to 8d connecting the anchor memher 7 and the shackle 6, and a cylinder, piston and piston rod assembly 9 afiixed to the frame.
  • a spreader 4 i.e., a cargo container lifting implement, which depicts as its major portions, a frame 5, a shackle 6, an anchor member 7, a plurality of cables 8a to 8d connecting the anchor memher 7 and the shackle 6, and a cylinder, piston and piston rod assembly 9 afiixed to the frame.
  • the frame is disposed primarily in a horizontal plane and is of rectangular configuration in that plane.
  • the frame further comprises four pairs of channels 12a, 12b, 13a, 13b, 14a, 14b, and 15a, 15b arranged by pairs along intersecting vertical diagonal planes to form four legs of an interior X-shaped subframe in which each legs extends from a central intersection of the diagonal planes to merge and terminate in a corner portion of the rectangular frame which includes the subframe.
  • the subframe being X-shaped, is ideally suited for supporting the leveling mechanism of the spreader since this mechanism is necessarily arranged in a generally X-shaped conformation in respect to its horizontal direction.
  • the anchor member 7 is slidably supported on a guide 18 for movement along a rectilinear path parallel to the length or longer horizontal dimension of the frame and approximately bisected by the vertical transverse central plane of the frame MM.
  • the anchor member 7 has a base 19 and is channeled by a recess 20 of cross sectional contour complementary to the spatulate transverse cross section of the guide 18.
  • the guide comprises an upper rod-like element 21 and a vertical web Q2 joined arrangements for obtaining the desired guided relationship of the anchor member lengthwise of the frame.
  • the member 7 has upper horizontal and longitudinally extending flanges 23 and 24 which have four apertures that receive pins 26, 27, 28, and 29 by which the anchor member is connected to the clevises 31, 32, 33, and 34 of cables 8a, Sb, Sc, and 8d, respectively.
  • Each cable is laced along a path extending lengthwise of one leg of the X-subframe.
  • the cable 811 for example, is supported in both of its lateral horizontal directions by a pair of pulleys 36 and 37 having substantially a common horizontal plane of rotation with their grooved peripheries in closely opposed relationship to confine the cable 6a from lateral deviation from its path.
  • the sheaves 36 and 37 have axles of vertical axis secured to the channel members 12a, 12b, respectively, forming one leg of the X- subframe.
  • the cable 8a is further supported by a sheave 38 disposed between the channel members 12a and 12b spaced for that purpose.
  • Sheave 38 has a horizontal axis disposing the sheave in a usually vertical plane of rotation and its grooved periphery at an elevation for feeding the cable 8a in a horizontal direction, i.e., parallel to the length of, and above, the associated X-frame leg into the nip of the sheaves 36 and 37.
  • Cable guiding means such as another sheave 39, is supported between the channel members 12a and 12b within a corner section of the complete frame.
  • the sheave 39 also has a horizontal axis of rotation and, because it is supported between the members 12a, 12b, rotates in the same vertical plane as the sheave 38. Because the cable 8:: extends from the sheave 39 radially toward the shackle 6, the cable is in contact with a substantial or major portion of the periphery of the sheave 39.
  • the cables 12!), 12c, 12d are supported in the same manner along the other legs of the X-subframe.
  • the cables may be secured to the shackle by clevises which, as shown, are similar to clevises 26, 27, 28, and 29.
  • corner pulleys 39, 4t), 41 and 42 are relatively large as compared with the pulleys 38, 37, and 36 in order to avoid undue bending stresses on the cable.
  • Use of the pulley 3S enables pulleys 39 to 42 to be disposed within the height of the frame 5 and thus promote compactness of design.
  • the anchor member In effecting leveling of the frame 5 and a load suspended thereon, the anchor member is traversed lengthwise of its path as defined by the guide 18 by the cylinder, piston, and piston rod assembly 9 affixed to the frame 5 along its top surface to dispose the longitudinal axis of the assembly along a central longitudinal vertical plane of the frame at an elevation common to that of the flanges 23, 24 of the anchor member 7 to which the cables are attached.
  • Components of the assembly 9 visible in the drawing are a cylinder 46 attached by brackets 47, 48 to the frame and a piston rod 49 in fixed relation with the upper portion of the anchor member.
  • FIG. 1 the anchor member 7 is shown at its neutral or intermediate position.
  • the anchor member is readily disposed in positions at the right and left of the neutral position shown.
  • FIG. 3 shows an alternate position in dot-dash outline and illustrates a function of the pulleys 36 and 37 which serve to receive the cable 8a at an alignment which is angled relative to its parallel position and relative to the length of the adjacent X-frame leg.
  • FIG. 3 also illustrates the change of alignment by cables 8b, 8c, 8d with respect to respective frame legs and pulleys analogous to pulleys 36, 37. Obvious from FIG. 3 is that the pulleys 36, 37 maintain the cable 8a in proper tracking alignment with the pulley 38.
  • the cylinder assembly 9 forcibly moves the anchor member 7 to various positions in its range of movement between extreme positions to the right and left of the neutral position shown.
  • the cylinder 46 thereof is capable of receiving liquid through either end and discharging it from the other, and vice versa, depending on the location of the center of gravity of the load to be handled by the spreader 4.
  • Ports 51 and 52 are provided for this purpose and are connected to a hydraulic supply and exhaust system such as that illustrated by the diagram of FIG. 5.
  • the ports 51 and 52 are connected to the body of a four-way reversing valve operated by solenoids 58 and 55 arranged to act on the valve in opposite directions.
  • the primary supply of liquid to the cylinder 46 is from a tank 56 and a pump 57 driven by a motor 58.
  • the oil or other liquid is forced through a check-valve 59 and the line 61 into the reversing valve 53. If the valve is in its neutral position as shown, the oil will return to the reservoir tank 56 through a line 62. If the valve 53 is in either one of its non-neutral positions, liquid will be forced into one end of the cylinder and discharged from the other end of the cylinder through the line 62 into the tank 56.
  • a spring operated unloading valve 64 will permit the return of oil to the tank through the lines 65 and 62.
  • the motor 58 and the pump 57 are preferably in constant operation to maintain pressure on the line 61. Liquid is constantly returned through either the dumping valve 64 or the four-way reversing valve 53.
  • Control by an operator of the hydraulic system is effected entirely by activation of one or the other of the solenoids of the valve 53 by an electrical system having a diagram such as that shown in FIG. 6.
  • the valve 53 returns to the illustrated neutral condition by springs associated with both solenoids.
  • the valve Upon movement of the piston 50 to a new position, the valve returns to neutral position and thus holds the piston in the position attained in its most recent movement.
  • the apparatus represented by the figure below the line X-X is that which is mounted on the spreader.
  • This includes the motor 53 served by a 3-phase 440 volt 60 cycle current supply through lines 71, 72, and 73. Following these lines through a socket connection at 74 to the area of the figure above the line XX, which designates that part of the equipment carried on the crane, the motor is electrically connected with the 440 volt supply through a master switch 75 (shown open) and fuses as shown. Assuming the switch 75 is closed, the motor 58 is constantly running and its operation and current supply is independent of that shown on the left side of the figure effecting the operation of solenoids 54 and 55. While the hydraulic system, as shown in FIG.
  • the spreader 4 is carried in its entirety on the spreader 4, the only portion of the electrical system for controlling it carried on the spreader are the solenoids 54, 55 and tiltsensitive switches 76 and 77, respectively, which, in one instance of the practice of this invention, were mercury contact switches Model AS415A1, manufactured by the Minneapolis-Honeywell Corporation, arranged and mounted to close at 1 degree tilt from level and to open at /2 degree tilt from level.
  • the switch 76 for example, closes with counterclockwise tilt of the frame 5 whereas the switch 77 closes with counterclockwise tilt.
  • light bulbs 78 and 79 are connected in volt 6O cycle circuit in series with the switches 76, 77, respectively.
  • the craneman In operating the spreader 4 in awordance with the circuit shown in FIG. 5, the craneman depends upon visual observation of the tilt of the spreader and the load carried thereby in making a judgment as to whether correction of the tilt is needed. Consequently, the tilt indicating lights 78 and 79 will not become illuminated until one of the control buttons 81, 82, and 83 are pushed. Such an arrangement leaves correction of the tilt to the discretion of the operator and thus avoids use of the tilt correction system until he deems it necessary. For example, if the cranernan observes clockwise tilt of a greater magnitude than the tilt he deems desirable for the condipower lines 94 and 95.
  • the craneman presses button 82 to interrupt the circuit through terminals 91 and 92 and to close the circuit through terminals 96 and 97. Simultaneously, the bulb 78 is illuminated and the solenoid 55 is operated to effect admission of liquid into the cylinders through the port 51.
  • the tilting switch 77 though closed, is nonfunctional during visual correction of counterclockwise tilting.
  • the bulbs 78 and 79 are illuminated but are not significant of indicating tilt, but merely that one or the other of the solenoids is energized in accordance with the button 81 or 82 pushed. It should be understood that in the visual procedure just described, the tilt correction effected is determined by the craneman by observation of the spreader and container itself, since the craneman may actuate the cylinder to its full range of piston movement in either direction by pressing one or the other of buttons 81 or 82.
  • depression of the button 83 will close the circuit and energize the solenoid 54 or 55 in series connection with the tilt sensitive switch 76 or 77 closed.
  • the bulbs 78 and 79 are in parallel relation with solenoids 54 and 55, respectively, the bulb in parallel with the solenoid energized will light up.
  • the circuit will remain closed and the tilt correction will continue until the neutral tilt condition is obtained and the corresponding tilt-sensitive switch 76 or 77 opens. This opens the valve-actuating circuit and further depression of the button 83 is of no effect.
  • Use of the button switch 83 in automatic operation is very advantageous under poor lighting conditions, such as night operation.
  • the line XX separates the equipment below the line carried on the spreader from the equipment above the line carried on the crane.
  • the various lines passing between the crane cab and the spreader may be incorporated in a single cable comprising a coupling connection whereby the connection may be uncoupled when the spreader is unhooked from the crane.
  • a spreader for lifting cargo containers comprising:
  • said tension means being of an arrangement and of sufficient length to dispose said shackle during operation in central and upwardly spaced relation with the frame when said level adjusting means is in an intermediate condition of adjustment.
  • a spreader for lifting cargo containers comprising:
  • a spreader for lifting cargo containers comprising:
  • a spreader for lifting cargo containers comprising:
  • each pair of sheaves having a plane of rotation approximately within a vertical diagonal plane of the frame intersecting the diagonal plane of the other pair at approximately a center point of the frame;
  • said anchor member, guide means, and poweroperated means each located symmetrically with respect to a vertical longitudinal center plane;
  • a pair of peripherally grooved guide sheaves for each of said sheaves the sheaves of each pair being mounted rotatably on the frame for rotation about vertical axes in the same general plane, with their peripheries juxtaposed along a cable path extending between the adjacent one of said first-named sheaves and the anchor member, to cooperatively confine the cable extending along said path within peripheral grooves of said pair of sheaves.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Refuse Collection And Transfer (AREA)
  • Basic Packing Technique (AREA)
  • Catalysts (AREA)
US321891A 1963-11-06 1963-11-06 Self-leveling cargo container spreader Expired - Lifetime US3191983A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL134517D NL134517C (en)van) 1963-11-06
US321891A US3191983A (en) 1963-11-06 1963-11-06 Self-leveling cargo container spreader
GB44815/64A GB1056680A (en) 1963-11-06 1964-11-03 Self-levelling cargo container spreader
NO155406A NO118126B (en)van) 1963-11-06 1964-11-03
BE655288D BE655288A (en)van) 1963-11-06 1964-11-05
FR993987A FR1413559A (fr) 1963-11-06 1964-11-05 Entretoise pour le levage de récipients de charge
NL6412927A NL6412927A (en)van) 1963-11-06 1964-11-06
ES0305718A ES305718A1 (es) 1963-11-06 1964-11-06 Pulpo para la elevacion de recipientes con carga.
DEN25784A DE1258057B (de) 1963-11-06 1964-11-06 Ladegeschirr, insbesondere fuer Transportbehaelter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US321891A US3191983A (en) 1963-11-06 1963-11-06 Self-leveling cargo container spreader

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US3191983A true US3191983A (en) 1965-06-29

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US321891A Expired - Lifetime US3191983A (en) 1963-11-06 1963-11-06 Self-leveling cargo container spreader

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US (1) US3191983A (en)van)
BE (1) BE655288A (en)van)
DE (1) DE1258057B (en)van)
ES (1) ES305718A1 (en)van)
GB (1) GB1056680A (en)van)
NL (2) NL6412927A (en)van)
NO (1) NO118126B (en)van)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265336A (en) * 1964-05-13 1966-08-09 United Aircraft Corp Cargo sling for aircraft
US3404911A (en) * 1966-10-27 1968-10-08 Sun Oil Co Cargo-handling apparatus
US3413028A (en) * 1966-10-07 1968-11-26 Sun Shipbuilding & Dry Dock Co Load equalizer
DE1295153B (de) * 1966-05-14 1969-05-14 Pompe Ausrichtvorrichtung zum Tragen von Lasten mit exzentrischem Schwerpunkt als Zwischenglied zwischen Kran und Last
DE1296766B (de) * 1966-11-29 1969-06-04 Ludwigslust Baustoffmasch Vorrichtung zum selbsttaetigen Schwerpunktausgleich fuer Traversen zum Tragen grosser Teile
US3493258A (en) * 1967-08-10 1970-02-03 Midland Ross Corp Cargo container lifting equipment
US3572803A (en) * 1968-11-07 1971-03-30 Wilhelmus Antonius Maria Pompe Method and apparatus for lifting a load with a crane cable or the like
US3596968A (en) * 1970-01-09 1971-08-03 Behring Corp Lifting apparatus
US3675960A (en) * 1970-04-01 1972-07-11 Skagit Corp Self leveling spreader frame
US4372597A (en) * 1971-08-24 1983-02-08 General Electric Company Submersible equipment handling system
DE3241380A1 (de) * 1981-11-11 1983-05-19 Hitachi, Ltd., Tokyo Steuervorrichtung fuer ein krangehaeuse
US4883184A (en) * 1986-05-23 1989-11-28 Albus James S Cable arrangement and lifting platform for stabilized load lifting
US5460422A (en) * 1992-01-10 1995-10-24 Thomson-Brandt Armements System for the tilting of a suspended object with tensioning roller for suspension line
US6357810B1 (en) * 2000-01-14 2002-03-19 Ford Global Technologies, Inc. Hoist assembly
CN101659369A (zh) * 2009-07-28 2010-03-03 无锡宝露锻造有限公司 一种三角式吊具
CN105883241A (zh) * 2016-06-12 2016-08-24 刘旭玲 一种用于集装箱的便于悬吊设备
CN108358058A (zh) * 2018-05-11 2018-08-03 天津航天机电设备研究所 一种调姿的智能吊具
CN110422749A (zh) * 2019-08-15 2019-11-08 巨力索具股份有限公司 双向液压调节吊具及其使用方法
US11130657B2 (en) * 2019-03-29 2021-09-28 Joel FORMOSA Apparatus for adjusting an orientation of a suspended load

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1113322A (fr) * 1954-09-14 1956-03-28 Sncaso Palonnier de levage
US3148909A (en) * 1962-02-23 1964-09-15 Fruehauf Corp Spreader bar for containers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928213A (en) * 1932-05-10 1933-09-26 Jr Lewis M Showers Lifting sling
US2020306A (en) * 1932-07-30 1935-11-12 Motor Terminals Co Apparatus for raising loaded containers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1113322A (fr) * 1954-09-14 1956-03-28 Sncaso Palonnier de levage
US3148909A (en) * 1962-02-23 1964-09-15 Fruehauf Corp Spreader bar for containers

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265336A (en) * 1964-05-13 1966-08-09 United Aircraft Corp Cargo sling for aircraft
DE1295153B (de) * 1966-05-14 1969-05-14 Pompe Ausrichtvorrichtung zum Tragen von Lasten mit exzentrischem Schwerpunkt als Zwischenglied zwischen Kran und Last
US3413028A (en) * 1966-10-07 1968-11-26 Sun Shipbuilding & Dry Dock Co Load equalizer
US3404911A (en) * 1966-10-27 1968-10-08 Sun Oil Co Cargo-handling apparatus
DE1296766B (de) * 1966-11-29 1969-06-04 Ludwigslust Baustoffmasch Vorrichtung zum selbsttaetigen Schwerpunktausgleich fuer Traversen zum Tragen grosser Teile
US3493258A (en) * 1967-08-10 1970-02-03 Midland Ross Corp Cargo container lifting equipment
US3572803A (en) * 1968-11-07 1971-03-30 Wilhelmus Antonius Maria Pompe Method and apparatus for lifting a load with a crane cable or the like
US3596968A (en) * 1970-01-09 1971-08-03 Behring Corp Lifting apparatus
US3675960A (en) * 1970-04-01 1972-07-11 Skagit Corp Self leveling spreader frame
US4372597A (en) * 1971-08-24 1983-02-08 General Electric Company Submersible equipment handling system
DE3241380A1 (de) * 1981-11-11 1983-05-19 Hitachi, Ltd., Tokyo Steuervorrichtung fuer ein krangehaeuse
US4883184A (en) * 1986-05-23 1989-11-28 Albus James S Cable arrangement and lifting platform for stabilized load lifting
US5460422A (en) * 1992-01-10 1995-10-24 Thomson-Brandt Armements System for the tilting of a suspended object with tensioning roller for suspension line
US6357810B1 (en) * 2000-01-14 2002-03-19 Ford Global Technologies, Inc. Hoist assembly
CN101659369A (zh) * 2009-07-28 2010-03-03 无锡宝露锻造有限公司 一种三角式吊具
CN105883241A (zh) * 2016-06-12 2016-08-24 刘旭玲 一种用于集装箱的便于悬吊设备
CN108358058A (zh) * 2018-05-11 2018-08-03 天津航天机电设备研究所 一种调姿的智能吊具
US11130657B2 (en) * 2019-03-29 2021-09-28 Joel FORMOSA Apparatus for adjusting an orientation of a suspended load
CN110422749A (zh) * 2019-08-15 2019-11-08 巨力索具股份有限公司 双向液压调节吊具及其使用方法
CN110422749B (zh) * 2019-08-15 2024-04-09 巨力索具股份有限公司 双向液压调节吊具及其使用方法

Also Published As

Publication number Publication date
DE1258057B (de) 1968-01-04
NL6412927A (en)van) 1965-05-07
NL134517C (en)van)
BE655288A (en)van) 1965-05-05
NO118126B (en)van) 1969-11-10
GB1056680A (en) 1967-01-25
ES305718A1 (es) 1965-05-01

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