US3881687A - Method and apparatus for lifting loads step-by-step, especially heavy loads - Google Patents

Method and apparatus for lifting loads step-by-step, especially heavy loads Download PDF

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Publication number
US3881687A
US3881687A US354936A US35493673A US3881687A US 3881687 A US3881687 A US 3881687A US 354936 A US354936 A US 354936A US 35493673 A US35493673 A US 35493673A US 3881687 A US3881687 A US 3881687A
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United States
Prior art keywords
jack
lifting
side walls
supporting means
grooves
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Expired - Lifetime
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US354936A
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English (en)
Inventor
Dag Valdemar Henry Johansson
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RESMASTSERVICE MARIESTADSVAGEN 87 S-541 45 SKOVDE SWEDEN AB
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Individual
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Publication of US3881687A publication Critical patent/US3881687A/en
Assigned to AB RESMASTSERVICE, MARIESTADSVAGEN 87, S-541 45 SKOVDE, SWEDEN reassignment AB RESMASTSERVICE, MARIESTADSVAGEN 87, S-541 45 SKOVDE, SWEDEN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JOHANSSON, DAG V. H.
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Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
    • E02B17/0863—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with rack and pawl mechanism
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks

Definitions

  • ABSTRACT A stepwise lifting device has at least one profiled beam having two opposing side walls with an open channel therebetween, and a conventional lifting jack is accommodated in the channel and has a base por tion and an extendable lifting portion with a thrust head attached thereto. Uniformly spaced along the side walls of the profiled beam are grooves, the top and bottom surfaces of which slope upwardly.
  • First and second jack supporting elements are provided for insertion between the grooves during a jack lifting and lowering operation, the arrangement being such that the weight of the jack is taken alternately on said elements during upward and downward stepping of the jacks.
  • Means are also provided for moving the supporting elements into and out of successive grooves as the lift ascends or descends.
  • the present invention relates to a device for lifting a load, especially a heavy load, step-by-step by means of at least one conventional jack, the device of the present invention affording considerable advantages over similar jacks known to the art and being much cheaper to manufacture than previously known devices of the type described.
  • the device of the present invention includes at least one jack having a base portion and an extendable and retractable lifting portion, at least one upstanding carrying structure, and first and second jack supporting means co-acting with said carrying structure to alternately support said base portion and said lifting portion during a load lifting and lowering sequence, said carrying structure having two opposing walls defining a jack receiving channel therebetween and having generally horizontal abutment surfaces being arranged on said opposing side walls for co-acting with said jack supporting means during said load lifting and lowering sequence in a manner such as to generally support the jack centrally within the confines of the carrying structure free from contact therewith.
  • FIG. 1 shows in perspective a device according to the invention in which four conventional jacks are embodied
  • FIGS. 2a, 2b and 2c show, partly in section, three stages during a load lifting operation carried out by means of the device according to the embodiment of FIG. 1,
  • FIG. 3 is a sectional view of an element used with the device according to the invention, the section being taken through the line III-III in FIG. 2a,
  • FIG. 4 shows a slightly modified embodiment of the device according to the invention
  • FIG. 5 is an enlarged partial view of the device according to the invention, seen from the side in FIG. 4,
  • FIG. 6 illustrates a further embodiment of the device according to the invention.
  • FIG. 7 shows an embodiment where the carrying structure has a number of sections, one stacked on top of the other, and with which the second jack engaging means is formed by the section last stacked.
  • the main components of the device according to the embodiment of the invention shown in FIGS. 1-3 include one or more jacks 1 and a carrying structure 2 for each jack.
  • the jacks 1 are of conventional construction and have a base portion 3 and a lifting portion 4 projecting therefrom, the lifting portion suitably carrying at its upper end a thrust head 5 having a larger diameter than the diameter of the lifting portion 4.
  • the jacks are preferably hydraulically operated, although mechanical jacks may also be used.
  • the carrying structure 2 includes a profiled beam, preferably a U-beam, which is held in an upstanding position.
  • the U-beam may be secured to a wall or other suitable supporting structure, which may be stationary or movable, but the manner in which the carrying structure 2 is secured does not form part of the present invention and will not therefore be described in detail.
  • each groove in one flange is located opposite a corresponding groove in the other flange, so that the lower defining surfaces of the grooves in each pair are located in a common generally horizontal plane.
  • the pairs of opposing grooves are disposed along the length of the carrying structure 2 in uniform spaced relationship and the distance between adjacent grooves is less than the length of stroke of the jack.
  • the opposing grooves 6 are desinged designed that their inner, mutually facing edge surfaces 25 are slightly higher than the back edge surfaces 26 of the grooves.
  • the abutment surfaces of the grooves slope slightly downwardly from the lip 25 of the groove to the back edge 26 thereof. Both the upper and the lower abutment surfaces of respective grooves slope in such a manner.
  • First and second jack supporting means 9, 10 are arranged to support the jacks 1 on the inside of the carrying structures, and are adapted to bear against the lower abutment surfaces of the grooves 6. Accordingly the ends of the supporting means are given a correspondingly inclined surface in which the edge surface 29 of the supporting elements is lower than a surface 30 located inwardly of said surface 29. Thus end surfaces of the supporting elements are formed to slope at the same angle and to the same extent as the abutment surfaces of the carrying structure 2. In this way, the supporting elements 9, 10 will hook into the grooves of the supporting structure, the firmness of this engagement increasing with increasing load. Any tendency for the grooved flanges of the carrying structure 2 to bow outwardly is effectively counteracted by the inclination of said surfaces 25 and 29 with respect to the axis of force of the load.
  • the requisite number of carrying structures 2, in this case four, are placed around the load which rests on one or more beams 7, the ends of which, in turn, rest on transversely positioned beams 8, the ends of the beams extending in between the flanges of a carrying structure 2.
  • a supporting means 9 in the form of a supporting plate is inserted into opposing grooves 6 at a distance beneath the beams 8 sufficient for a jack 1 to be placed on the plate 9 with its head 5 beneath the co-acting end of the cross beam 8.
  • Hydraulic fluid under pressure is then fed to the jacks 1, which extends to lift the cross beam 8 to such an extent that the head 5 of the jack 1 and the load are raised slightly above a pair of opposing grooves 6 further up the carrying structure 2.
  • a second supporting means indicated by the reference numeral 10, which has the form of a plate of the same rectangular shape as plate 9 but with a U-shaped cut 1 1 arranged in its edge, is inserted into pair of opposing grooves 6 in a manner such that the lifting portion 4 of the jack beneath the head 5 is accommodated in the cut 11.
  • the beam 8 will be lowered and will rest on the supporting plate while further retraction of the jack 1 will cause the head 5 of the jack to hang on the supporting plate 10 and the base portion 3 of the jack to be lifted upward.
  • the plate When the base portion 3 is free from the lower supporting plate 9, the plate is withdrawn from the pair of opposing grooves 6, and when the base portion passes the next higher pair of opposing grooves, the plate 9 can be reinserted in those grooves and will again be in position beneath the base portion 3.
  • the jack When the jack is then extended, it will rest on the lower supporting plate 9 and its head 5 will be lifted from the upper supporting plate 10, which can then be drawn out of its grooves 6'.
  • the lifting sequence is then repeated, the load thus being lifted step-by-step, by alternately extending and retracting the jack 1 and by moving the supporting plates 9, 10 up the carrying structure 2. To lower the load, the above described sequence of events is carried out in reverse.
  • FIG. 2a illustrates a stage in which extension of the jack 1 has just begun and the two supporting plates 9 and 10 are in position
  • FIG. 2b illustrates a stage in which the jack has been extended to the desired extent, only the lower supporting plate 9 being in position
  • FIG. 2c illustrates a stage during retraction of the jack, only the upper supporting plate 10 being in position.
  • FIG. 4 shows a further development of the device shown in FIGS. 1-3. It also includes a jack 1 and a carrying structure 2 provided with grooves 6.
  • a plate 12 is detachably secured to the bottom surface of the base portion 3 and to the top of the lifting portion 4 beneath the head 5 thereof, by means of screws 14 for example.
  • the plate 12 is provided with a platelike extension 15 projecting outwardly between the flanges of the carrying structure 2 and the extensions 15 is provided with strips 16 of U-shaped cross section, the open channels of which oppose each other and are arranged in such spaced relationship that when the supporting plates 9 and 10 are withdrawn from the grooves 6, the plates slide in between the strips 16 and are supported thereby.
  • the supporting plates 9 and 10 may be provided with hand grips 17.
  • the jack 1 carries the supporting plates 9 and 10 along during the stepwise lifting and lowering movements, which considerably simplifies the lifting operation, especially when working at great height, and also reduces the risk of accident through falling supporting elements.
  • the supporting means 9' and 10' are detachably connected to the base portion 3 and the head 5, the supporting means 9' being connected to the bottom surface of the base portion and the supporting means 10' being connected to the upper surface of the head.
  • Each supporting means 9', 10' includes a supporting plate 18, which is provided with a diametrically extending grooves.
  • Two jaws l9 and 20 are arranged for movement in opposite directions in the groove to engage, in an outwardly projected position, the grooves 6 of the carrying structure and in a withdrawn position to be free from the grooves 6.
  • the jaws 19, 20 are urged towards the outwardly projecting position by means of a resilient force, preferably the force exerted by springs 21, although a pressure medium may also be used for this purpose.
  • the surfaces of the jaws 19, 20 facing the grooves 6 disposed in the flanges of the carrying structure 2, have on their lower portions planar, sloping surfaces 22 which extend and outwardly and downwardly so that when the jaws are extended each surface rests against a co-acting upwardly inclined defining surface of the groove 6, to thereby support the base portion 3 of the jack and the head 5.
  • the upper portion of the edges of the jaws are defined by an upwardly inclined surface 23 extending in towards the centre of the jacks, the surface 23 upon upward movement of the base portion 3 and the head 5 coming into abutment with the upper edge surface of the co-acting groove 6 and under a camming action therewith forces the jaws l9 and 20 inwardly against the action of the spring 21.
  • the jaws l9 and 20 of the supporting elements 9 and 10 of the base portion 3 and head 5 will engage in a groove 6 and be forced out thereof to engage in the next succeeding pair of opposing grooves.
  • the jack 1 and the load can be moved step-by-step up the carrying structure 2 without it being necessary for the operator to remove and replace the supporting elements.
  • each jaw In lowering the load, the jaws are not automatically pressed inwardly by the aformentioned camming action, so each jaw is arranged to co-act with one or more hydraulic piston and cylinder devices 24, to which bydraulic fluid is fed at suitable times to move the coacting jaw out of engagement with a groove 6.
  • hydraulic piston and cylinder devices 24 These hydraulic devices are of known construction and will not therefore be described or shown in detail.
  • the supporting means 9 and 10 are in the form of detachable units which may be mounted to conventional jacks.
  • the carrying structure 2 has been assumed to be a unitary beam structure of finite height. Carrying structures of a fixed height may prove less useful with certain load lifting or load supporting operations, however, and to obviate any inconvenience in this respect the carrying structure used in the embodiment shown in FIG. 7 is composed of a number of stackable sections 2a, which can be placed one on top of the other to form a carrying structure of the desired height.
  • each section 2a has arranged in opposing side wall surfaces thereof a groove 6", each groove preferably presenting upper and lower abutment surfaces which slope upwardly towards the opposing groove on the opposite side wall surface.
  • the position of each groove 6" in respective sections 2a in such that the distance between adjacent grooves of stacked sections is shorter than the working stroke of the lifting portion 4 of the jack 1.
  • the grooves 6" of the embodiment shown in FIG. 7 are arranged to receive jack supporting means having groove engaging surfaces corresponding to the surfaces of the grooves.
  • the grooves are intended only to receive the supporting means arranged to co-act with the base portion of the jack, while the jack supporting means arranged to co-act with the lifting portion 4 of the jack is the section 2a added to the stack of sections to extend the carrying structure.
  • the part of the lifting portion 4 engaging the load is detachably secured to it, by a nut and bolt 31 for example or by any other appropriate means, so that the jack is held suspended thereby on the top of the uppermost section 2a when the lifting portion 4 is retracted.
  • the section 2a thus forms the supporting means for the lifting portion 4.
  • two sections 2a are placed one on top of the other and locked together by means of a bolt, quick-release pin or other appropriate securing means (not shown).
  • a jack supporting means 9" for co-action with the base portion of a jack during a load lifting and lowering sequence is placed in the lowermost grooves 6" and a jack 1 is placed on said means to be supported thereby within the confines of the carrying structure sections.
  • the lifting portion 4 of the jack 1 is then extended for the part 30 to bear against the load 7 to be raised.
  • the load is then lifted through a distance corresponding at least to the height of a section 2a and a further section 2a is placed on top of the uppermost section and se- :ured thereto.
  • a device for lifting loads in stages comprising at least one jack having a base portion and an extendable and retractable lifting portion,
  • a carrying structure for said jack having two opposing side walls spaced from each other and defining a jack receiving channel therebetween, said side walls having inside surfaces,
  • first and second jack supporting means each extending across the channel between the opposing side walls to alternately support said base portion and said lifting portion of said jack respectively
  • said plurality of abutment surfaces being inclined downwards from the inside surfaces in the opposing side walls
  • said opposing side walls of said carrying structure include oppositely located horizontal grooves, the lower surfaces of which form said generally horizontal abutment surfaces.
  • the second jack supporting plate has a notch accommodating said lifting portion so that said second jack supporting plate may support said lifting portion by supporting said head portion.
  • each jaw includes a generally horizontal lower surface to act as a supporting surface for said jaw, and each jaw further includes a canted, inwardly sloping upper surface to co-act with the upper edge of said grooves to force said jaw inward during an upward movement of said jack supporting means.
  • a device for lifting loads comprising at least one jack having a base portion and an extendable and retractable lifting portion;
  • first and second jack supporting means to alternately support said base portion and said lifting portion of said jack respectively;
  • said carrying structure being a U-beam with a length at least equal to the distance the load is to be lifted;
  • said opposing side walls of said carrying structure including oppositely located horizontal grooves, the lower surfaces of which form said generally horizontal abutment surfaces;
  • said first and second jack supporting means having the form of plates, capable of being inserted into and retracted from said grooves to alternately support said base portion and said lifting portion of said jack during load lifting and lowering sequences;
  • said opposing side walls having inside surfaces
  • a device for lifting loads in stages comprising at least one jack having a base portion and an extendable and retractable lifting portion,
  • a carrying structure for said jack having opposing side walls defining a jack receiving channel therebetween;
  • first jack supporting means in the form of a plate to support said base portion in said carrying structure and a second jack supporting means for supporting said lifting portion in said carrying structure, said second jack supporting means being formed by a head member of said lifting portion;
  • said carrying structure comprising a number of U- shaped sections having opposing side walls and being placeable one on top of another into a stack to form a U-beam structure, each section being of a length less than the possible length of extension of said jack;
  • each of said sections having on the inner surface of each of said opposing side walls a substantially horizontal groove, the groove on each wall being opposite the groove of the other wall;
  • first jack supporting means being insertable into said grooves in said side walls, the lower edges of said grooves being inclined downwards from the inner surfaces of said side walls to co-operate with corresponding chamfers on said opposite side edges;

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Bridges Or Land Bridges (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US354936A 1972-05-04 1973-04-27 Method and apparatus for lifting loads step-by-step, especially heavy loads Expired - Lifetime US3881687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7205885A SE363798C (sv) 1972-05-04 1972-05-04 Anordning for att stegvis lyfta laster, spec. stora laster

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US3881687A true US3881687A (en) 1975-05-06

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US354936A Expired - Lifetime US3881687A (en) 1972-05-04 1973-04-27 Method and apparatus for lifting loads step-by-step, especially heavy loads

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US (1) US3881687A (hu)
JP (1) JPS5749479B2 (hu)
BE (1) BE835904Q (hu)
DE (1) DE2322023C2 (hu)
FR (1) FR2183122B1 (hu)
GB (1) GB1422199A (hu)
SE (1) SE363798C (hu)
SU (1) SU563114A3 (hu)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067448A (en) * 1975-05-19 1978-01-10 Luke Bourgeois Lift and supporting system
US4113234A (en) * 1976-10-18 1978-09-12 Donald Charles Wride Hydraulic jacks
US4343075A (en) * 1980-03-10 1982-08-10 Robert H. Guptill Tool for disassembly of automotive universal joints
US4366954A (en) * 1981-02-09 1983-01-04 Cash Donald R Outboard motor support frame
US4544135A (en) * 1982-04-29 1985-10-01 Dolphin Titan International, Inc. Rig skidding system
US4577844A (en) * 1982-11-19 1986-03-25 Schlegel Gmbh Vertically adjustable device
US4661749A (en) * 1983-09-15 1987-04-28 Finkbeiner W Apparatus for ensuring synchronism in lifting jacks
US4807851A (en) * 1988-01-11 1989-02-28 United Tank Lifting Technologies, Inc. Process for lifting tanks
US4930750A (en) * 1988-01-11 1990-06-05 Bruno De Castro Apparatus for lifting tanks
US5271604A (en) * 1992-09-15 1993-12-21 Bruno De Castro Support structure for lifting tanks with roof column supports
US5411234A (en) * 1992-03-24 1995-05-02 Croon & Lucke Maschinenfabrik Gmbh Stand for the storage of two-dimensional workpieces
US5476433A (en) * 1994-01-19 1995-12-19 Bruner; Peter W. Universal martial arts training apparatus
US6193219B1 (en) * 1997-05-23 2001-02-27 I.C.I. CôTE-NORD INC. Heavy vehicle lifting device and method
US6299137B1 (en) * 1999-04-28 2001-10-09 Wesley Allen Bainter Hydraulic grain storage bin lifting system
US6719233B2 (en) * 2001-11-20 2004-04-13 Key Safety Systems, Inc. Seat belt retractor with load limiter
WO2012004442A3 (es) * 2010-07-07 2012-03-08 Cantoni Gruas Y Montajes S.R.L. Dispositivo rebatible de izaje de uso en construcción de contenedores metálicos de grandes dimensiones, y accesorio removible aplicable al mismo
US8757593B2 (en) 2012-05-10 2014-06-24 Commonwealth Dynamics, Inc. Ratchet pawl system, device and method
US20150008383A1 (en) * 2013-07-08 2015-01-08 Bainter Construction Services, Llc Jack with Two Masts
CN105438792A (zh) * 2015-12-09 2016-03-30 泰州市捷鑫机械设备有限公司 一种摩托车减震管电镀工作台
US9353537B2 (en) * 2013-05-21 2016-05-31 Monty Wensel Apparatus, system and method for lifting a building
US9604828B1 (en) * 2014-04-24 2017-03-28 Davor J. Petricio Yaksic Heavy equipment lifting
US20200122987A1 (en) * 2017-05-03 2020-04-23 8082464 Canada Inc. Shovel lifting system and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE417082B (sv) * 1979-07-05 1981-02-23 Resmastservice Ab Anordning for att stegvis lyfta laster, speciellt stora laster, med hjelp av en eller flera domkrafter
JPS57195093A (en) * 1981-05-27 1982-11-30 Nippon Tsun Kk Method of dropping heavy material
JPS57195994A (en) * 1981-05-27 1982-12-01 Nippon Tsun Kk Method and device for mounting heavy material
JPS61266898A (ja) * 1985-05-21 1986-11-26 丸三機械建設株式会社 重量機器の高所据付け方法
FR2679214B1 (fr) * 1991-07-15 1993-11-19 Marcel Costard Systeme concu pour soulever des fortes charges.
FR2679215B1 (fr) * 1991-07-15 1993-11-19 Marcel Costard Systeme elevateur de charge lourde.
DE29605412U1 (de) * 1996-03-23 1996-07-25 Schröder, Horst, 59071 Hamm Hub- und Aufbocksystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657009A (en) * 1951-09-07 1953-10-27 Edgar C Alexander Jack
US2822670A (en) * 1953-09-02 1958-02-11 Delong Corp Perforated caisson jack assembly
US3290007A (en) * 1965-06-28 1966-12-06 Hydraulic Engineers Inc Jack arrangement for a platform structure
US3396944A (en) * 1964-05-08 1968-08-13 Costain Ltd Richard Jacking systems for use in the construction of buildings

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR503333A (fr) * 1914-10-21 1920-06-08 Tryggve Olaf Sommerstad Dispositif actionné par un liquide sous pression pour l'élévation de lourdes charges
FR1086480A (fr) * 1953-07-27 1955-02-14 Procédé et dispositif pour soulever de lourds planchers en béton armé et charges analogues
FR1117999A (fr) * 1955-01-19 1956-05-30 Perfectionnements aux vérins hydrauliques
US2984075A (en) * 1956-05-15 1961-05-16 De Long Corp Internal and external jack assembly for telescopic caissons
AT214607B (de) * 1959-05-27 1961-04-25 August Boehm Hydraulische Kletterkatze für verschiedene Verwendungszwecke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657009A (en) * 1951-09-07 1953-10-27 Edgar C Alexander Jack
US2822670A (en) * 1953-09-02 1958-02-11 Delong Corp Perforated caisson jack assembly
US3396944A (en) * 1964-05-08 1968-08-13 Costain Ltd Richard Jacking systems for use in the construction of buildings
US3290007A (en) * 1965-06-28 1966-12-06 Hydraulic Engineers Inc Jack arrangement for a platform structure

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067448A (en) * 1975-05-19 1978-01-10 Luke Bourgeois Lift and supporting system
US4113234A (en) * 1976-10-18 1978-09-12 Donald Charles Wride Hydraulic jacks
US4343075A (en) * 1980-03-10 1982-08-10 Robert H. Guptill Tool for disassembly of automotive universal joints
US4366954A (en) * 1981-02-09 1983-01-04 Cash Donald R Outboard motor support frame
US4544135A (en) * 1982-04-29 1985-10-01 Dolphin Titan International, Inc. Rig skidding system
US4577844A (en) * 1982-11-19 1986-03-25 Schlegel Gmbh Vertically adjustable device
US4661749A (en) * 1983-09-15 1987-04-28 Finkbeiner W Apparatus for ensuring synchronism in lifting jacks
US4771221A (en) * 1983-09-15 1988-09-13 Finkbeiner W Apparatus for ensuring synchronism in lifting jacks
US4807851A (en) * 1988-01-11 1989-02-28 United Tank Lifting Technologies, Inc. Process for lifting tanks
US4930750A (en) * 1988-01-11 1990-06-05 Bruno De Castro Apparatus for lifting tanks
US5411234A (en) * 1992-03-24 1995-05-02 Croon & Lucke Maschinenfabrik Gmbh Stand for the storage of two-dimensional workpieces
US5271604A (en) * 1992-09-15 1993-12-21 Bruno De Castro Support structure for lifting tanks with roof column supports
US5476433A (en) * 1994-01-19 1995-12-19 Bruner; Peter W. Universal martial arts training apparatus
US6193219B1 (en) * 1997-05-23 2001-02-27 I.C.I. CôTE-NORD INC. Heavy vehicle lifting device and method
US6705595B2 (en) * 1997-05-23 2004-03-16 3991814 Canada Inc. Heavy vehicle lifting device and method
US6641115B1 (en) * 1999-04-28 2003-11-04 Wesley Allen Bainter Bin lifting system
US6299137B1 (en) * 1999-04-28 2001-10-09 Wesley Allen Bainter Hydraulic grain storage bin lifting system
US6311952B2 (en) * 1999-04-28 2001-11-06 Wesley Allen Bainter Hydraulic grain storage bin lifting system and method
US6719233B2 (en) * 2001-11-20 2004-04-13 Key Safety Systems, Inc. Seat belt retractor with load limiter
WO2012004442A3 (es) * 2010-07-07 2012-03-08 Cantoni Gruas Y Montajes S.R.L. Dispositivo rebatible de izaje de uso en construcción de contenedores metálicos de grandes dimensiones, y accesorio removible aplicable al mismo
EP2592041A2 (en) * 2010-07-07 2013-05-15 Cantoni Gruas Y Montajes S.r.l. Collapsible hoisting device for use in the construction of large metal containers, and removable accessory applicable thereto
EP2592041A4 (en) * 2010-07-07 2013-11-13 Cantoni Gruas Y Montajes S R L COLLAPSE ELEVATOR FOR USE IN THE CONSTRUCTION OF LARGE METAL CONTAINERS AND DETACHABLE ACCESSORIES THEREOF
US9630818B2 (en) 2010-07-07 2017-04-25 Marcelo Ricardo CANTONI Collapsible hoisting device for use in the construction of large metal containers, and removable accessory applicable thereto
US8757593B2 (en) 2012-05-10 2014-06-24 Commonwealth Dynamics, Inc. Ratchet pawl system, device and method
US9353537B2 (en) * 2013-05-21 2016-05-31 Monty Wensel Apparatus, system and method for lifting a building
US9718656B2 (en) * 2013-07-08 2017-08-01 Bainter Construction Services, Llc Jack with two masts
US20150008383A1 (en) * 2013-07-08 2015-01-08 Bainter Construction Services, Llc Jack with Two Masts
US9604828B1 (en) * 2014-04-24 2017-03-28 Davor J. Petricio Yaksic Heavy equipment lifting
CN105438792A (zh) * 2015-12-09 2016-03-30 泰州市捷鑫机械设备有限公司 一种摩托车减震管电镀工作台
CN105438792B (zh) * 2015-12-09 2018-01-12 泰州市捷鑫机械设备有限公司 一种摩托车减震管电镀工作台
US20200122987A1 (en) * 2017-05-03 2020-04-23 8082464 Canada Inc. Shovel lifting system and method
US11851309B2 (en) * 2017-05-03 2023-12-26 8082464 Canada Inc. Shovel lifting system and method

Also Published As

Publication number Publication date
DE2322023A1 (de) 1973-11-22
FR2183122A1 (hu) 1973-12-14
BE835904Q (fr) 1976-03-16
JPS5749479B2 (hu) 1982-10-22
GB1422199A (en) 1976-01-21
JPS4955052A (hu) 1974-05-28
SE363798C (sv) 1976-09-27
SU563114A3 (ru) 1977-06-25
FR2183122B1 (hu) 1978-06-30
DE2322023C2 (de) 1986-01-30
SE363798B (hu) 1974-02-04

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