US3273859A - Device for the stepwise elevation of at least one structural member or the like - Google Patents

Device for the stepwise elevation of at least one structural member or the like Download PDF

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Publication number
US3273859A
US3273859A US407009A US40700964A US3273859A US 3273859 A US3273859 A US 3273859A US 407009 A US407009 A US 407009A US 40700964 A US40700964 A US 40700964A US 3273859 A US3273859 A US 3273859A
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United States
Prior art keywords
pawl
lifting
mechanisms
column
pawl mechanisms
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Expired - Lifetime
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US407009A
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English (en)
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Walli Ernst
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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
    • E02B17/0854—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with clamping wedges, eccentric clamping devices and so on
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E04B1/3511—Lift-slab; characterised by a purely vertical lifting of floors or roofs or parts thereof
    • 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

Definitions

  • the present invention is concerned with an improved device for the stepwise elevation of at least one structural member at, as the case may be, at least one column or support provided with pin guides, with such column serving as terminal anchoring for the raised member.
  • Such pin guides incorporating pin means at which the structural member raised, in each case, through one step is supported by automatically engaging pawls.
  • the inventive device is further provided with lifting mechanism possessing limited stroke transmitted to the structural member via a pin guide and the automatically engaging pawls cooperating with the pin guide.
  • Devices of this type are known to the art for lifting structural ceilings, supporting beams and the like produced at the floor or base of the place of construction.
  • Another important object of the present invention resides in the provision of an improved lifting device which is capable of raising considerable loads in a positive, reliable and safe manner, and which can be easily erected and disassembled at the place where the load is to be elevated.
  • each lifting location there is provided at least one pin guide or guide means and at least two pawl mechanisms, that the pin guide is operatively connected with the structural member, the pawl mechanisms possess automatically engaging rearward locking pawls, and the first pawl mechanism is anchored to the lifting elements and the second pawl mechanism is anchorable to the column or support at different elevational positions.
  • FIGURE 1 is a side view of a lifting location with the inventive lifting apparatus located in the starting position;
  • FIGURE 2 illustrates, on a somewhat smaller scale, the lifting location provided with the lifting apparatus of FIGURE 1, viewed in the direction of arrow A thereof, and depicted in four different working positions in the sub-figures marked a, b, c, d; and
  • FIGURE 3 is a cross-sectional view of the device of FIGURE 1, taken along the line III-III thereof.
  • reference numeral 1 denotes a foundation of a construction situs upon which lies a structural member, by way of example, a concrete ceiling or cover 2 which is to be lifted.
  • a vertical support or column 3 is anchored in the foundation 1, extending upwardly through a metal collar 4 cast integral with the ceiling or cover 2.
  • This vertical column 3 possesses two adjacently disposed rows of continuous bores or recesses 5 (see FIGURE 2) extending lengthwise of the vertical support 3 and in which bars or rods 20 are insertable. At both ends of these respective rods 20 "ice which extend out of the column 3 there are detachably connected brackets or supports 6.
  • supports 6 are only anchored in two elevational positions. In the starting condition the supports 6 are anchored in the lowermost and second lowermost elevational positions (see FIGURE 2a).
  • a respective first pawl or ratchet mechanism 7 is mounted to the lower supports 6.
  • a respective second pawl or ratchet mechanism 8 is located at a distance above the associated first pawl or ratchet mechanism 7, and which is connected with the aforesaid first pawl mechanism 7 by means of two adjacently arranged lifting jacks 9 or equivalent expedients.
  • the arrangement is organized such that the lifting cylinder 9a is connected to a cover plate 7a of the lower pawl mechanism 7 and the lifting ram or piston 9b to the base plate 8a of the upper pawl mechanism 8.
  • a respective third pawl or ratchet mechanism 17 is anchored to the upper supports or brackets 6.
  • Each pin guide It possesses at its lower end an anchor lllb engaging into the ceiling or cover 2.
  • pipe or tube members We can serve as the guide means it) which possess two lengthwise extending rows of diametrically situated pins or lift cogs 11 which cooperate with rearward locking pawls 12, 13 and 15 pivotably mounted at the pawl mechanisms 7, 8 and 17 respectively. More precisely, each of the pawl mechanisms 7, 8 and 17 possess two locking pawls 12, 13 and 15 respectively, sub jected to the action of a respective spring 14 cooperating with the pins 11 in the direction of engagement.
  • each locking pawl 12, 13 and 15 can be brought out of engagement with the pins 11 and held in such dis engaged position by means of its associated arresting pin 19 pushed through the relevent bore 18.
  • the pawls 12 and 13 of the pawl mechanism 7 and 8, re :spectively, are located in the engaged position with the pins 11, and the pawls 15 of the pawl mechanism 17 in the disengaged or ineffective position.
  • FIGURE 2a depicts the starting position of the inventive lifting device according to FIGURE 1, wherein the ceiling or cover 2 representing the structural member to be lifted and connected via the anchors 1011 with the pin guides It) bears against the base or foundation 1.
  • the individual third pawl mechanisms 17 have likewise been illustrated.
  • the third pawl mechanisms 17 are not utilized, accordingly their locking pawls 15 are not in engagement with the pins 11 of the guide means iii (FIGURE 1).
  • the lifting pistons or rams 912 (that is, all lifting rams of all lifting units) are supplied in suitable known manner with working fluid, so that the pistons 9b and together with the latter the upper pawl mechanism 8 as well as the pawls 13 positively or forcefully engaging beneath the pins 11 upwardly press or raise the guide means 10 together with the structural component 2 through the stroke of the respective pistons 91).
  • the pawls 12 of the lowermost pawl mechanisms 7 freely slide over the pins 11 of the pin guides 10 until termination of the piston stroke when they forcefully come into engagement with the pins 11 of the pin guides 10. Thereafter, the lifting jacks 9 are again unloaded, the pawl mechanisms 8 lower, with the pawls 13 freely gliding over the pins 11 of the pin guides 10.
  • the pawl members 12 of the lowermost pawl mechanisms 7 anchored at the column 3 at this time retain the pin guides 10 together with the structural component 2 in the raised position corresponding to the lifting stroke. This thus attained elevated position then provides the starting position for the next lifting stroke by means of which the cover member 2 is stepwise advanced until reaching the position illustrated in FIGURE 2b where it is located just slightly beneath the support 6 anchored at the vertical column 3.
  • the inventive lifting device serves to lift a single cover or ceiling member 2.
  • the illustrated pawl mechanisms there could be employed such utilizing a plurality of superimposed pawls.
  • the pawls of the paw-l mechanisms 17 could likewise be engaged, whereby during lowering of the lifting jacks 9 the load is not only carried by the lowermost pawl mechanisms 7, rather also by the uppermost pawl mechanisms 17, thereby also increasing safety of operation.
  • the lowermost pawl mechanisms 7 can be dispensed with and the lifting apparatus 9 can be directly anchored to the supports or brackets 6. If this is the case, then, the arrangement can also :be carried out such that the upper pawl mechanisms 17 and the lift ing apparatus 9 with the pawl mechanisms 8 can be supported at a single continuous support or bracket anchorable at the column 3.
  • the pawl mechanisms 17 can also be arranged beneath the pawl mechanisms 8.
  • the lifting force available at each lifting location can be doubled in comparison with known arrangements.
  • relatively short pin guides 10 can be provided which are only subjected to tensile load.
  • a further advantage of the inventive device resides in its independence as regards the shape and size of the cross-section of the vertical column or support 3.
  • this device is particularly suitable for raising to large heights heavy structural components, as such, for instance, is the case with bridge and skyscraper construction.
  • the brackets or supports 6 are anchorable at elevational distances at the column 3 corresponding to a story or floor.
  • Device for the stepwise elevation of at least one member to be raised along a column serving as a terminal anchoring for said member comprising at least one guide means and at least two pawl mechanisms, means for anchoring said guide means with the member to be raised, lifting means for moving said guide means, said pawl mechanisms being provided with pawl means automatically engageable with said guide means, means mounting a first of said two pawl mechanisms to said lifting means and means selectively anchoring the second of said two pawl mechanisms at different elevational positions along the column.
  • Device as defined in claim 1 further including a third pawl mechanism anchored with said lifting means, said first and third pawl mechanisms being displaceable relative to one another through the agency of said lifting means, means for selectively anchoring one of said first and third pawl mechanisms at different elevational positions with said column.
  • Device as defined in claim 1 including means for anchoring said lifting means to said column at different elevational positions.
  • Device as defined in claim 1 including a respective guide means arranged at each opposite side of said column, and at least two pawl mechanisms cooperating with each guide means.
  • each guide means comprises a pipe member provided with a row of pin means, said pin means of both guide means being situated in diametrically opposed relation.
  • said lifting means comprises at least two lifting jacks symmetrically arranged with respect to said guide means and operable upon said first pawl mechanism.
  • Device as defined in claim 10 including spring means for normally urging said pawl means into engagement with said guide means.
  • Device as defined in claim 10 including means for holding said pawl means out of engagement with said guide means.
  • Device for the stepwise elevation of at least one member to be raised along a support structure comprising at least one guide means and at least two pawl mechanisms, means for anchoring said guide means with the member to be raised, lifting means for moving said guide means, said pawl mechanisms including means which are engageable with said guide means in order to raise and maintain said member in raised position, means mounting a first of said two pawl mechanisms with said lifting means and means for selectively anchoring the second of said ⁇ two pawl mechanisms at different elevational positions along the support structure.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ladders (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US407009A 1963-10-31 1964-10-28 Device for the stepwise elevation of at least one structural member or the like Expired - Lifetime US3273859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1338163A CH414103A (de) 1963-10-31 1963-10-31 Einrichtung zum schrittweisen Emporheben mindestens eines Bauwerkteiles

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US3273859A true US3273859A (en) 1966-09-20

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CH (1) CH414103A (de)
DE (1) DE1434530A1 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464169A (en) * 1967-06-26 1969-09-02 Etablis F Potain Lifting device for a telescopic mast
US3519246A (en) * 1968-06-28 1970-07-07 Hartley Belding Hoisting unit
US3570812A (en) * 1968-10-03 1971-03-16 Finkbeiner W Lifting device operated by bellows
US3876181A (en) * 1973-04-23 1975-04-08 Marine Engineering Company C A Method and apparatus for quickly erecting off-shore platforms
US3949884A (en) * 1973-11-14 1976-04-13 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Transporting and lifting vehicle for heavy loads
US3994475A (en) * 1976-04-02 1976-11-30 Hydranautics Rack type jacking apparatus
US4032112A (en) * 1973-03-07 1977-06-28 Enor Nominees Pty Limited Climbing jack
US4505616A (en) * 1983-05-26 1985-03-19 Litton Systems, Inc. Self-locking chock system for a jack-up rig unit
US4598506A (en) * 1984-09-05 1986-07-08 Nohl Arthur H Swimming pool cover
US4785592A (en) * 1986-04-24 1988-11-22 Laboratoire D'etudes Et De Recherches Chimiques (Lerc) S.A. Method for raising a multi-element mast and apparatus for performing the method and masts provided with these means
US5575591A (en) * 1995-04-24 1996-11-19 Vanderklaauw; Peter M. Apparatus and method for a modular support and lifting system
US5980160A (en) * 1997-02-19 1999-11-09 Vanderklaauw; Peter M. Apparatus and method for a modular lifting and shoring system
WO2004088133A1 (es) * 2003-04-01 2004-10-14 Alberto Munarriz Aldaz Equipo de montaje de aerogeneradores
WO2014186868A1 (en) * 2013-05-21 2014-11-27 Monty Wensel Apparatus, system and method for lifting a building
US9353537B2 (en) * 2013-05-21 2016-05-31 Monty Wensel Apparatus, system and method for lifting a building

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238115A (en) * 1979-08-17 1980-12-09 Research-Cottrell, Inc. Jacking device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028144A (en) * 1959-03-30 1962-04-03 David B Cheskin Lifting apparatus
US3036816A (en) * 1956-03-20 1962-05-29 Allan H Stubbs Apparatus for lift-slab building construction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036816A (en) * 1956-03-20 1962-05-29 Allan H Stubbs Apparatus for lift-slab building construction
US3028144A (en) * 1959-03-30 1962-04-03 David B Cheskin Lifting apparatus

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464169A (en) * 1967-06-26 1969-09-02 Etablis F Potain Lifting device for a telescopic mast
US3519246A (en) * 1968-06-28 1970-07-07 Hartley Belding Hoisting unit
US3570812A (en) * 1968-10-03 1971-03-16 Finkbeiner W Lifting device operated by bellows
US4032112A (en) * 1973-03-07 1977-06-28 Enor Nominees Pty Limited Climbing jack
US3876181A (en) * 1973-04-23 1975-04-08 Marine Engineering Company C A Method and apparatus for quickly erecting off-shore platforms
US3949884A (en) * 1973-11-14 1976-04-13 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Transporting and lifting vehicle for heavy loads
US3994475A (en) * 1976-04-02 1976-11-30 Hydranautics Rack type jacking apparatus
US4505616A (en) * 1983-05-26 1985-03-19 Litton Systems, Inc. Self-locking chock system for a jack-up rig unit
US4598506A (en) * 1984-09-05 1986-07-08 Nohl Arthur H Swimming pool cover
US4785592A (en) * 1986-04-24 1988-11-22 Laboratoire D'etudes Et De Recherches Chimiques (Lerc) S.A. Method for raising a multi-element mast and apparatus for performing the method and masts provided with these means
US5575591A (en) * 1995-04-24 1996-11-19 Vanderklaauw; Peter M. Apparatus and method for a modular support and lifting system
US5980160A (en) * 1997-02-19 1999-11-09 Vanderklaauw; Peter M. Apparatus and method for a modular lifting and shoring system
US6379085B1 (en) 1997-02-19 2002-04-30 Peter M. Vanderklaauw Method and apparatus for relocating a structure from a first elevation to a second elevation
WO2004088133A1 (es) * 2003-04-01 2004-10-14 Alberto Munarriz Aldaz Equipo de montaje de aerogeneradores
ES2235599A1 (es) * 2003-04-01 2005-07-01 Alberto Munarriz Aldaz Equipo de montaje de aerogeneradores.
ES2235599B1 (es) * 2003-04-01 2006-07-01 Alberto Munarriz Aldaz Equipo de montaje de aerogeneradores.
WO2014186868A1 (en) * 2013-05-21 2014-11-27 Monty Wensel Apparatus, system and method for lifting a building
US9353537B2 (en) * 2013-05-21 2016-05-31 Monty Wensel Apparatus, system and method for lifting a building

Also Published As

Publication number Publication date
DE1434530A1 (de) 1968-12-19
CH414103A (de) 1966-05-31

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