US3842986A - Device for accurately positioning a body suspended from cables - Google Patents

Device for accurately positioning a body suspended from cables Download PDF

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Publication number
US3842986A
US3842986A US00221361*A US22136172A US3842986A US 3842986 A US3842986 A US 3842986A US 22136172 A US22136172 A US 22136172A US 3842986 A US3842986 A US 3842986A
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US
United States
Prior art keywords
cables
trolley
sheaves
hoisting
load
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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
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US00221361*A
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English (en)
Inventor
L Hupkes
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CONRAD-STORK BEHEER BV
WERF CONRAD AND STORK
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WERF CONRAD AND STORK
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Assigned to CONRAD-STORK BEHEER B.V. reassignment CONRAD-STORK BEHEER B.V. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: CONRAD-STORK B.V.
Assigned to B.V. MACHINE BOUW CONTAD STORK, reassignment B.V. MACHINE BOUW CONTAD STORK, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CONRAD STORK BEHEER B.V.
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
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads

Definitions

  • ABSTRACT A body is suspended from a trolley solely by hoisting cables or by a combination of hoisting cables and positioning wires.
  • hoisting cables in the case when only hoisting cables are employed, they pass on drums joined together and so operated to raise and lower the load, the hoisting cables passing on sheaves and being connected to the trolley by support members which are pivotable to compensate for load differences in the cables, the sheaves also being pivotable on the trolley to compensate for elongation differences in the cable.
  • positioning cables are utilized, the latter are connected to a driving drum over pivotable sheaves to compensate for elongation differences in the cables,
  • the present invention relates to a device for accurately positioning a body suspended via an engaging means from one or more cables of a hoisting device in which at least two cables or wires, which are in communication with the body or the engaging means, are guided each at an angle to the vertical, and not parallel to each other, to a drum which may be driven.
  • a device of this type is disclosed in Applicants earlier Application Ser. No. 158,539 filed Aug. 3, 1974.
  • a device for accurately positioning a body suspended from cables of a hoisting device, said device being characterized' in that means are provided to prevent a change in the positions of the drums for the wires or cables relative to each other, at least in the sense that one drum will unwind relative to the other drum, irrespective of the amount of stress in the wires, and further means are provided to compensate for the differences in elongation in the wires and/or the cables.
  • the inclined wires or cables may consist of special positioning wires or they may be formed by the hoisting cables, in the first case one or more separate drums for the positioning wires are provided.
  • the means for preventing a change in the positions of the drums relative to each other consists preferably of mechanical coupling means for the drums or of means for uniting the drums as one single drum around which the two wires are passed in the same sense.
  • the means for preventing a change of the positions of the drums relative to each other may also consist of an analog or digital control of the driving means of the drums.
  • the means for compensating for the differences in elongation of the wires preferably comprises movably mounted sheaves, over which the positioning wires are passed to the drums and a device which can transform a difference between the stresses in the wires into such a relative movement of said guiding sheaves that the difference in elongation will be compensated.
  • the means for compensating for the differences in elongation of the wires or cables may also consist of means controlling the driving means of the drums so that the drum around which the wire or cable subjected to the greatest stress is passed will wind up relative to the other drum.
  • a body suspended by cables of a hoisting device may be accurately positioned as to the position where the body is to be deposited. Accurate positioning, however, requires also that the body will come down in the correct position. With a container this means with its surface absolutely horizontal. This will be the case if the center of gravity of the container lies on the vertical central axis of the container. This is often not the case, so that as a consequence of the unequal loads of the hoisting cable which then occur, the cables will not stretch to the same extent and the container will hang aslant.
  • the cables from which the body is suspended are connected with a system for measuring the differ ences in load between said cables, while the points where said cables engage the hoisting device are engaged in movably mounted supports, and a mechanism is present to move said supports in response to the measured differences in load so that the difference in elongation of the cables will be compensated
  • a device is present in accordance with the invention, which can control the measuring system for measuring the differences in load between the hoisting cables and/or the means for compensating the differences in elongation in the positioning wires in dependency on the length of the cable between the body and the hoisting device.
  • FIG. 1 is a schematic side view of a first embodiment of the present invention with separate positioning wires
  • FIG. 2 is a schematic view, on enlarged scale, of an alternative embodiment of a means for compensating the differences in elongation in the positioning wires;
  • FIG. 3 is a perspective view of a second embodiment of the present invention, without separate positioning wires;
  • FIG. 4 is a perspective view of a means for compensating the differences in elongation in the hoisting cables illustrated in FIG. 3;
  • FIG. 5 shows in perspective a means for guiding the hoisting cables illustrated in FIG. 3 by means of a spring.
  • FIG. 1 therein is seen part of a girder 1 of a container bridge, along which a trolley 2 may travel on wheels 3.
  • a hoisting drum 4 is mounted on the trolley, and hoisting cables 5 of the drum extend to sheaves 6 on a lifting frame of a container.
  • the hoisting cables 5 extend around the sheaves 6 and are fixed at supports 8 on the trolley 2.
  • Measuring systems are built in the support 8 to measure the differences in load in the hoisting cables and control a mechanism (not shown) to move the supports 8 in a manner so that the difference in elongation of the hoisting cables will be compensated, whereby the lifting frame 7 and the load 9 suspended therefrom will remain absolutely horizontal. This movement may be continuous or stepwise. It is also possible to adapt the movement of the supports 8 of the hoisting cables 5 to a secondary action, such as an offset position of the center of gravity of the load 9 or a difference in deflection of the girder 1.
  • a drivable drum 10 is mounted on the trolley 2, and positioning wires 11 extend around drum l0 and are guided on sheaves 12 to the lifting frame 7 of the container.
  • the drum 10 is subjected to a suitable constant torque so that the wires 11 will be kept continuously tensioned, both during standstill and during the hoisting and lowering of the load 9.
  • the sheaves 12 are mounted on hinged rods 13 which are connected to each other by a rod 14.
  • Measuring devices 15 are mounted on rod 14 to provide a signal which is transmitted to a control device 16 which can move the rod 14 to the left or to the right.
  • the positioning wire 11 at the extreme right will be subjected to a higher load than the positioning wire 11 at the extreme left side.
  • This difference in load will be measured by the measuring systems 15 which control the device 16, as a consequence of which the rod 14 is moved to the right.
  • the result of this movement is that the right-hand guiding sheave 12 will swing to the right, whereby the higher elongation in the right-hand positioning wire 11 will be compensated.
  • the movement of the sheaves 12 may be effected either continuously or in one or more steps; it is also possible to compensate by these movements the secondary actions of the wind force, such as the deflection of the stationary leg and the girder of the container bridge.
  • FIG. 2 illustrates only one of the sheaves 12, and the sheave is rotatably secured to the end of one of the arms of a bellcrank lever, 17.
  • the lever 17 is rotatably secured at its center to a frame 18, and the end of lever 17 remote from sheave 12 is connected with one end of a load measuring unit 19.
  • the other end of unit 19 is engaged with a lever 20.
  • the lever 20 is hinged at one end to the frame 18 and is connected at its other end with an adjusting device 21, which in the present embodiment comprises a hydraulic cylinder.
  • an adjusting device 21 which in the present embodiment comprises a hydraulic cylinder.
  • FIG. 3 A second embodiment of the present invention is illustrated in FIG. 3, in which no separate positioning wires are employed.
  • four drums 23 are mounted on a trolley 22, said drums being rigidly coupled to each other.
  • the drums 23 may also be constructed as a single drum.
  • Two hoisting cables 24 extend from each one of the drums 23 via guiding sheaves 25 to sheaves 28 mounted on the lifting frame 27, said lifting frame engaging container 26, said hoisting cables extending further to points of attachment 29 on the trolley 22.
  • each point of attachment 29 comprises a load measuring device 30 (as shown in FIG. 4), which measures the rope tension. In response to the differences in force measured by the load measuring devices 30, a signal is produced by which a stepping motor 31 is operated.
  • the stepping motor 31 drives a transmission mechanism located in a casing 32 to cause a lever 33 to be pivoted in one direction or the other. As a consequence thereof, the differences in elongation resulting from the load will be compensated, to prevent the container from tilting and moving horizontally.
  • the guiding sheaves 25 are rotatably -mounted on the end of one of the arms of a bell-crank lever 34, as illustrated in FIG. 5.
  • the lever 34 is rotatably supported in its center by a supporting means 35 mounted on the trolley 22.
  • a spring 36 is located between another supporting means (not shown) which is mounted on the trolley and the lever 34, so that the sheaves 25 may move when the load sways and the spring 36 will form a buffer.
  • the bell-crank lever 34 is connected to a hydraulic cylinder 37, whose piston is connected to the frame 38 through a piston rod, the frame 38 being rigidly mounted on the trolley 22.
  • a hydraulic liquid is present on both sides of the piston in the cylinder 37, the liquid being displaced from one side of the piston to the other side via pipes 39 and 40 and an open blocking valve 41 as a consequence of swaying of the lever 34.
  • the pipes 39 and 40 extend to a pump 42, and a valve 43 is mounted in the pipes, the valve 43 being in closed position during the above mentioned operation, If swaying or any eccentric position of the container is to be ruled out during the positioning of the container, the blocking valve 41 is closed and the valve 43 opened, as a result of which the piston in the cylinder 37 is displaced to a terminal position in which the bell-crank lever 34 cannot move.
  • Apparatus for suspending a body comprising a trolley, a single drum means supported on said trolley, at least two pair of cables positively connected to said single drum means and said body and each cable of each pair extending at a substantial angle to the vertical and in non-parallel relation to the other cable of the pair and converging at said body, said drum means being drivable in rotation to cause said cables to raise and lower the body respectively at the locations where the cables are connected to said body, a plurality of pivotal support members mounted on the trolley, an equal plurality of sheaves each being supported on a respective support member for pivoting therewith, one cable passing on each sheave and being connected to the drum means and to the body, means .acting on said pivotal support members to move each of the same and the respective sheaves supported thereby and means controlling the last said means to operate the same and move the plurality of pivotable support members for cancelling any difference in elongation of the cables and thereby obviate any tilting or eccentric movement of the body.
  • said single drum means comprises a plurality of drums, a plurality of pairs of said cables being provided for each drum, and a mechanical coupling means joining said drums together for rotation as a common unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
US00221361*A 1971-01-29 1972-01-27 Device for accurately positioning a body suspended from cables Expired - Lifetime US3842986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7101224A NL7101224A (zh) 1971-01-29 1971-01-29

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US3842986A true US3842986A (en) 1974-10-22

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US (1) US3842986A (zh)
AU (1) AU3814472A (zh)
BE (1) BE778379A (zh)
DE (1) DE2203245A1 (zh)
FR (1) FR2124940A7 (zh)
GB (1) GB1375756A (zh)
NL (1) NL7101224A (zh)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971478A (en) * 1974-10-10 1976-07-27 Institutul de Proiectare Tehnologica Pentru Laminoare --IPROLAM-- Overhead crane with lifting beam provided with C-shaped claws
US4168857A (en) * 1976-12-29 1979-09-25 B.V. Machinefabriek Figee Crane with luffing system suitable for handling both general cargo and cargo containers
DE2917588A1 (de) * 1979-04-30 1980-11-13 Hans Tax Lasthubsystem
US5114025A (en) * 1989-11-11 1992-05-19 Drahtseilwerk Saar Gmbh Swivel for use in cranes and the like
CN1043334C (zh) * 1994-03-28 1999-05-12 三菱重工业株式会社 一种卷扬物件摇摆阻尼控制装置
US6126023A (en) * 1995-11-24 2000-10-03 The University Of Sydney Crane with improved reeving arrangement
US6145680A (en) * 1997-09-24 2000-11-14 Kci Konecranes International Plc Apparatus for reducing overload and dampening collision energy
CN1093082C (zh) * 1995-08-30 2002-10-23 Kci国际有限公司 用于控制吊车的承载部件和负载的方法和设备
US20050224438A1 (en) * 2002-09-30 2005-10-13 Siemens Aktiengesellschaft Method and device for maintaining a position of a load suspended from a lifting gear
US20080135510A1 (en) * 2005-02-02 2008-06-12 Ghee Hua Ng Trolley and Spreader Assembly
CN104105654A (zh) * 2012-12-12 2014-10-15 三菱重工机械科技株式会社 抓斗的升降控制装置、具备抓斗的升降控制装置的卸载机及抓斗的升降控制方法
US20150146916A1 (en) * 2013-11-26 2015-05-28 Lun-Hui Lee Method of reducing computational demand for image tracking
US9096294B1 (en) * 2011-06-20 2015-08-04 The United States Of America As Represented By The Secretary Of The Navy Trolley-payload inter-ship transfer system
CN105366544A (zh) * 2015-11-26 2016-03-02 三一海洋重工有限公司 一种四个卷筒起升机构和集装箱起重机
US9366128B2 (en) 2013-05-22 2016-06-14 Baker Hughes Incorporated Automated wellbore equipment feeding system
CN106586829A (zh) * 2016-12-30 2017-04-26 三海洋重工有限公司 吊具回转平移机构及集装箱起重机
US9834418B2 (en) 2012-09-21 2017-12-05 Par Systems, Inc. Boat deployment assembly and method
US20180029849A1 (en) * 2015-04-08 2018-02-01 Hans Kunz GmbH Transport unit
US9908750B2 (en) 2010-04-01 2018-03-06 Par Systems, Inc. Tensile truss mast
US10106376B2 (en) * 2014-12-19 2018-10-23 Airbus Defence And Space, S.A. Device for hoisting and controlling loads
CN109264578A (zh) * 2018-11-26 2019-01-25 新乡市豫新起重机械有限公司 一种电动葫芦防摇摆自动对接型起重机
US20190092605A1 (en) * 2017-09-28 2019-03-28 Mohr Lizenz Verwaltungs Gmbh Lifting apparatus for raising and lowering heavy objects
US10427919B2 (en) * 2015-11-06 2019-10-01 Fundación Tecnalia Research And Innovation Application and method for positioning and orientating a load
US10494233B2 (en) 2013-02-06 2019-12-03 Par Systems, Llc Relocatable fine motion positioner assembly on an overhead crane
US10533327B2 (en) * 2017-10-27 2020-01-14 Aerial Arts, Inc. Rigging lift and method of use
CN113387273A (zh) * 2021-06-09 2021-09-14 湖南天桥嘉成智能科技有限公司 止摇起升装置及其搬运设备
CN113526376A (zh) * 2021-08-27 2021-10-22 中铁十五局集团有限公司 市政钢结构桥梁起吊装置及方法
US20220402731A1 (en) * 2019-11-20 2022-12-22 Murata Machinery, Ltd. Ceiling carrier
US11608252B1 (en) * 2022-02-15 2023-03-21 Innovative Minds, LLC Damper systems for suspended loads

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295904A1 (fr) * 1974-12-26 1976-07-23 Casteran Jean Dispositif de hissage d'un fardeau, destine a eviter son balancement
DE2737285A1 (de) * 1977-08-18 1979-03-01 Nmf Neuenfelder Maschinenfabri Verfahren zum betrieb eines kranes und kran zur ausuebung dieses verfahrens, insbesondere zum verladen von containern durch portalkrane mit drehtraverse
EP0246922A3 (en) * 1986-05-23 1990-02-07 James S. Albus Cable arrangement and lifting platform for stabilized load lifting
DK157242B (da) * 1988-01-20 1989-11-27 Schmidt As T Hejsevaerk omfattende en spilramme og et aag
FR2643353B1 (fr) * 1989-02-17 1991-06-14 Caillard Dispositif pour eviter le balancement d'une charge sous un bati de support, notamment un portique
DE4011260C2 (de) * 1990-04-05 1993-12-02 Mannesmann Ag Meßeinrichtung und Meßverfahren an einem Hubmittel, insbesondere einem unter Last stehenden Hubseil für Hebeeinrichtungen
FR2669317A1 (fr) * 1990-11-16 1992-05-22 Yvonne Rouzier Mouvements automatiques de levage synchronises guides par capteurs.
DE4314460A1 (de) * 1993-05-03 1994-11-10 Eberswalde Kranbau Gmbh Einrichtung zur Dämpfung der Pendelbewegung der Last eines Kranes, insbesondere eines Containerkranes
DE4416707A1 (de) * 1994-05-11 1995-11-16 Tax Ingenieurgesellschaft Mbh Verfahren zur Zielwegkorrektur eines Lastträgers und Lastentransportanlage
DE19721136A1 (de) * 1997-05-21 1998-11-26 Noell Stahl Und Maschinenbau G Lasthub-System
DE102009034121A1 (de) * 2009-07-20 2011-01-27 Thyssenkrupp Millservices & Systems Gmbh Hubwerk eines Krans
DE202010015180U1 (de) 2010-11-09 2012-03-01 Tecsis Gmbh Kompensation von Messfehlern bei Hebegeräten
CN103274293B (zh) * 2013-05-23 2015-01-07 宁波北仑国际集装箱码头有限公司 一种铁路敞车装箱定位装置

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971478A (en) * 1974-10-10 1976-07-27 Institutul de Proiectare Tehnologica Pentru Laminoare --IPROLAM-- Overhead crane with lifting beam provided with C-shaped claws
US4168857A (en) * 1976-12-29 1979-09-25 B.V. Machinefabriek Figee Crane with luffing system suitable for handling both general cargo and cargo containers
DE2917588A1 (de) * 1979-04-30 1980-11-13 Hans Tax Lasthubsystem
US5114025A (en) * 1989-11-11 1992-05-19 Drahtseilwerk Saar Gmbh Swivel for use in cranes and the like
CN1043334C (zh) * 1994-03-28 1999-05-12 三菱重工业株式会社 一种卷扬物件摇摆阻尼控制装置
CN1093082C (zh) * 1995-08-30 2002-10-23 Kci国际有限公司 用于控制吊车的承载部件和负载的方法和设备
US6126023A (en) * 1995-11-24 2000-10-03 The University Of Sydney Crane with improved reeving arrangement
US6145680A (en) * 1997-09-24 2000-11-14 Kci Konecranes International Plc Apparatus for reducing overload and dampening collision energy
US20050224438A1 (en) * 2002-09-30 2005-10-13 Siemens Aktiengesellschaft Method and device for maintaining a position of a load suspended from a lifting gear
US7267240B2 (en) * 2002-09-30 2007-09-11 Siemens Aktiengesellschaft Method and device for maintaining a position of a load suspended from a lifting gear
CN101128389B (zh) * 2005-02-02 2011-04-27 新众机械工程私人有限公司 吊运器及吊具组件
US7861872B2 (en) * 2005-02-02 2011-01-04 Nsl Engineering Pte Ltd Trolley and spreader assembly
US20080135510A1 (en) * 2005-02-02 2008-06-12 Ghee Hua Ng Trolley and Spreader Assembly
US9908750B2 (en) 2010-04-01 2018-03-06 Par Systems, Inc. Tensile truss mast
US9096294B1 (en) * 2011-06-20 2015-08-04 The United States Of America As Represented By The Secretary Of The Navy Trolley-payload inter-ship transfer system
US9834418B2 (en) 2012-09-21 2017-12-05 Par Systems, Inc. Boat deployment assembly and method
CN104105654A (zh) * 2012-12-12 2014-10-15 三菱重工机械科技株式会社 抓斗的升降控制装置、具备抓斗的升降控制装置的卸载机及抓斗的升降控制方法
US10494233B2 (en) 2013-02-06 2019-12-03 Par Systems, Llc Relocatable fine motion positioner assembly on an overhead crane
US9366128B2 (en) 2013-05-22 2016-06-14 Baker Hughes Incorporated Automated wellbore equipment feeding system
US20150146916A1 (en) * 2013-11-26 2015-05-28 Lun-Hui Lee Method of reducing computational demand for image tracking
US9278832B2 (en) * 2013-11-26 2016-03-08 Institute Of Neclear Energy Research Method of reducing computational demand for image tracking
US10106376B2 (en) * 2014-12-19 2018-10-23 Airbus Defence And Space, S.A. Device for hoisting and controlling loads
US10807837B2 (en) * 2015-04-08 2020-10-20 Hans Künz GmbH Transport unit
US20180029849A1 (en) * 2015-04-08 2018-02-01 Hans Kunz GmbH Transport unit
US10427919B2 (en) * 2015-11-06 2019-10-01 Fundación Tecnalia Research And Innovation Application and method for positioning and orientating a load
CN105366544B (zh) * 2015-11-26 2017-12-05 三一海洋重工有限公司 一种四个卷筒起升机构和集装箱起重机
CN105366544A (zh) * 2015-11-26 2016-03-02 三一海洋重工有限公司 一种四个卷筒起升机构和集装箱起重机
CN106586829A (zh) * 2016-12-30 2017-04-26 三海洋重工有限公司 吊具回转平移机构及集装箱起重机
CN106586829B (zh) * 2016-12-30 2018-06-26 三一海洋重工有限公司 吊具回转平移机构及集装箱起重机
US10737915B2 (en) * 2017-09-28 2020-08-11 Mohr Lizenz Verwaltungs Gmbh Lifting apparatus for raising and lowering heavy objects
US20190092605A1 (en) * 2017-09-28 2019-03-28 Mohr Lizenz Verwaltungs Gmbh Lifting apparatus for raising and lowering heavy objects
US10533327B2 (en) * 2017-10-27 2020-01-14 Aerial Arts, Inc. Rigging lift and method of use
CN109264578A (zh) * 2018-11-26 2019-01-25 新乡市豫新起重机械有限公司 一种电动葫芦防摇摆自动对接型起重机
CN109264578B (zh) * 2018-11-26 2023-08-29 新乡市豫新起重机械有限公司 一种电动葫芦防摇摆自动对接型起重机
US20220402731A1 (en) * 2019-11-20 2022-12-22 Murata Machinery, Ltd. Ceiling carrier
US12106992B2 (en) * 2019-11-20 2024-10-01 Murata Machinery, Ltd. Ceiling carrier
CN113387273A (zh) * 2021-06-09 2021-09-14 湖南天桥嘉成智能科技有限公司 止摇起升装置及其搬运设备
CN113526376A (zh) * 2021-08-27 2021-10-22 中铁十五局集团有限公司 市政钢结构桥梁起吊装置及方法
US11608252B1 (en) * 2022-02-15 2023-03-21 Innovative Minds, LLC Damper systems for suspended loads
WO2023158573A1 (en) * 2022-02-15 2023-08-24 Innovative Minds, LLC Damper systems for suspended loads

Also Published As

Publication number Publication date
AU3814472A (en) 1973-07-26
BE778379A (nl) 1972-07-24
DE2203245A1 (de) 1972-08-10
FR2124940A7 (zh) 1972-09-22
GB1375756A (zh) 1974-11-27
NL7101224A (zh) 1972-08-01

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Owner name: CONRAD-STORK BEHEER B.V.

Free format text: CHANGE OF NAME;ASSIGNOR:CONRAD-STORK B.V.;REEL/FRAME:003942/0520

Effective date: 19811228

Owner name: B.V. MACHINE BOUW CONTAD STORK,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONRAD STORK BEHEER B.V.;REEL/FRAME:003942/0523

Effective date: 19811221

Owner name: CONRAD-STORK BEHEER B.V., CALIFORNIA

Free format text: CHANGE OF NAME;ASSIGNOR:CONRAD-STORK B.V.;REEL/FRAME:003942/0520

Effective date: 19811228

Owner name: B.V. MACHINE BOUW CONTAD STORK,, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONRAD STORK BEHEER B.V.;REEL/FRAME:003942/0523

Effective date: 19811221