US3799290A - Cable restraint for multi-stage pneumatic lift assembly - Google Patents

Cable restraint for multi-stage pneumatic lift assembly Download PDF

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Publication number
US3799290A
US3799290A US00270920A US27092072A US3799290A US 3799290 A US3799290 A US 3799290A US 00270920 A US00270920 A US 00270920A US 27092072 A US27092072 A US 27092072A US 3799290 A US3799290 A US 3799290A
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US
United States
Prior art keywords
platform
cable
set forth
reel
assembly
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
US00270920A
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English (en)
Inventor
R Fisher
N Partch
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.)
W R CARPENTER HOLDING PTY Ltd
Up Right Inc
Original Assignee
Up Right Inc
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 US00270920A priority Critical patent/US3799290A/en
Application filed by Up Right Inc filed Critical Up Right Inc
Priority to AU58007/73A priority patent/AU5800773A/en
Priority to IT51413/73A priority patent/IT989844B/it
Priority to JP7825973A priority patent/JPS5727268B2/ja
Priority to DE19732335202 priority patent/DE2335202A1/de
Priority to FR7325434A priority patent/FR2192059B3/fr
Priority to GB3333173A priority patent/GB1392899A/en
Application granted granted Critical
Publication of US3799290A publication Critical patent/US3799290A/en
Anticipated expiration legal-status Critical
Assigned to WESTPAC BANKING CORPORATION reassignment WESTPAC BANKING CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UP-RIGHT, INC., A CA CORP.
Assigned to UP-RIGHT, INC., A CALIFORNIA CORPORATION reassignment UP-RIGHT, INC., A CALIFORNIA CORPORATION TERMINATION OF ASSIGNMENT Assignors: W.R. CARPENTER HOLDINGS PTY, LIMITED
Assigned to W. R. CARPENTER HOLDING PTY. LIMITED reassignment W. R. CARPENTER HOLDING PTY. LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WESTPAC BANKING CORPORATION, AS AGENT FOR ITSELF AND THE BANKS
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/22—Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement

Definitions

  • ABSTRACT A pneumatic lift assembly wherein a platform is elevated by applying air under pressure to a telescoping lift cylinder.
  • An inextensible cable is fixed at'one end to the base of the assembly and extends up to the plat form.
  • the operator secures the cable to the platform to prevent further upward movement of the platform.
  • Additional pressure can then be applied to the lift cylinder, placing the cable under tension, thereby preventing the platform from thereafter raising or lowering because of variations in loading on the platform.
  • means are provided to secure the cable to the platform automatically upon sudden upward movement of the platform and thereby prevent dangerous upward surge of the platform in the event normal upward movement of the platform is interrupted and the lift cylinder becomes overpressured.
  • Pneumatic scaffold systems comprise one or more telescoping lift cylinders which support a work platform on their upper end.
  • air under pressure isintroduced into the cylinders and when the pressure in the cylinders has built up to a sufficient degree to overcome the downward load thereon the lift cylinders begin to extend, carrying the platform upwardly.
  • pressurized air eventually causes the lift cylinders to extend completely to raise the platform to its maximum height. At such time, additional air under pressure can be forced into the lift cylinders to overpressure them and rigidify the structure.
  • the platform islocated at a height less than the maximum possible height.
  • Such location can be easily accomplished by the operator who merely shuts off the flow of pressurized air into the lift cylinders when the platform has reached the desired elevation.
  • the forces in the system are in balance. That is, the upward force on the platform (a function of the air pressure in the lift cylinders over the area on which the air acts upwardly) is equal to the height of the platform, the extended portions of the lift cylinders and the load on the platform (the operator and material thereon). Any variation in scaffold loading will then cause the platform to raise or lower.
  • One of the objects of the invention is to provide a simple means, actuatable by the operator, to lock the platform against upward movement when any desired elevation has been reached. With the platform so locked, the lift cylinders can be overpressured so that the assembly is rigidified and so that variations in loading will not cause platform movement.
  • a dangerous sudden upward movement of the platform may occur if normal upward movement is temporarily interrupted.
  • a power tool may be carried upwardly with the'platform with the electric cord extending to the ground, and the cord may snag something on the ground. If the tool does not pull free from the platform, upward movement of the platform will be stopped. If the workman is not paying attention, air under pressure will continue to be introduced into the lift cylinders until sufficient force is present to part the cord. With this restraint removed, the overpressured lift cylinders will cause a rapid upward surge of the platform with the danger that the workman might be thrown therefrom. Similarly, if the platform hangs up on a projection from the adjacent structure, the platform will surge upwardly after the force developed in the lift cylinders shears off the restraining projection.
  • a substantially inextensible cable is provided which extends from the base of the scaffold up to the platform.
  • the cable is secured to the base member and unreels from the platform as the platform is raised.
  • the operator actuates a cablesecuring device which secures the platform to the cable and anchors the platform against further upward movement.
  • the operator can cause the lift cylinders to be overpressured, thereby putting the cable under tension. Additional loading on the platform can then be accommodated, up to an amount equal to the amount of initial tension in the cable without causing downward movement of the scaffold.
  • a decrease in platform load will cause an increase in cable tension but the inextensiblility of the cable will prevent upward platform movement.
  • a safety device is provided so that the cable is automatically secured to the platform, to anchor against upward platform movement, in the event of an attempted upward surge thereof.
  • this safety device is an inertia-sensing device which is responsive to a sudden increase in rate of elevation of the platform, as would occur if the platform sheared off an obstructing projection and which acts to secure the cable to the platform against the upward movement that would otherwise result from the overpressured condition of the lift cylinders.
  • FIG. 1 is a perspective view of a pneumatic scaffold utilizing the present invention
  • FIG. 2 is an elevational view, partly in section, of a portion of the scaffold shown in FIG. 1;
  • FIG. 3 is an elevational view, partly in section, of the cable-securing means and actuators therefor;
  • FIG. 4 is a detail view of the inertia-sensing device shown in FIG. 3.
  • the pneumatic scaffold assembly 10 comprises a base member 1 l on which three multi-stage telescoping lift cylinders 12, 13 and 14 are mounted and a platform member 15 supported on the upper ends of the lift cylinders.
  • Each lift cylinder comprises a plurality of telescopable cylindrical stages 16, two extendable stages being shown in FIG. 2.
  • Air under pressure in storage tank 17 passes through conduit 18 to the pressure regulator in housing 19 and then up through the flexible, coiled hose 20 to the valve box 21 mounted on the platform.
  • foot pedal 22 When depressed, foot pedal 22 operates a valve in the valve box so that the air in hose 20 can flow through conduit 23 to the interiorof the lift cylinder 12, and through similar conduits to the other two lift cylinders.
  • Foot pedal 24 actuates another valve, when the pedal is depressed, to exhaust air from the lift cylinders.
  • a flexible, substantially inextensible cable 25 extends from base member 11 upwardly to the platform member 15, the cable preferably extending through the center of the coils of hose 20 to ensure that the hose 20 remains within the confines of the scaffold assembly.
  • the cable 25 passes down through an opening in bracket 26, which is fixed to base member 11, with the lower end of the cable being fixed to bearing plate 27.
  • a heavy-duty, shockabsorbing compression spring 28 is confined between the bearing plate 27 and bracket 26.
  • the undersurface of platform 15 has mounted thereon a cable reel housing 30 which has a horizontal shaft31 journaled in opposed walls 32 of the housing.
  • a reel 33 is fixed to shaft 31 for rotation therewith and the upper portion of cable 25 is wound around the reel, the end of the cable being fixed to the reel.
  • a spiral spring 34 is disposed around shaft 31 with one end of the spring being fixed to the shaft and the other end of the spring being fixed to housing wall 32.
  • a suitable end cap, not shown, is secured to housing wall 32 to en close spring 34.
  • reel 33 has a ratchet wheel 35 fixed thereto, the wheel having a plurality of ratchet teeth 36 spaced around the periphery thereof.
  • Pawl 37 pivotally mounted at its lower end on pin 38 fixed to housing wall 32 and having an upper end 39 adapted to engage the ratchet teeth 36 is provided to prevent unreeling rotation of reel 33 when engaged therewith.
  • Spring 41 normally biases pawl 37 away from such engagement.
  • the engaging surfaces of the teeth and pawl are sloped so that once engaged disengagement cannot occur without some clockwise rotation of the ratchet wheel.
  • An actuator pin 42 slidably mounted in brackets 43 and 44 is arranged so that the end 45 thereof can push against pawl 37.
  • the left end of pin 42 is pivotally connected at 47 to the lower arm of bell crank 48.
  • bell crank is pivotally mounted at 49 to wall 32 and foot of reel 33.
  • spring 46 will move pin 42 to the left, away from pawl 37, and will raise the foot pedal.
  • the pawl 37 will remain in engagement with the ratchet teeth, however, until there is sufficient clockwise rotation of the ratchet wheel to release the pawl.
  • Ratchet wheel 35 also has gear teeth 52 formed thereon which engage idler gear 53, the latter being in meshing engagement with gear 54 which drives the inertia-sensing device 55.
  • gear teeth 52 formed thereon which engage idler gear 53, the latter being in meshing engagement with gear 54 which drives the inertia-sensing device 55.
  • inertia-sensing device as more fully shown in US. Pat. No. 3,450,368 may be used.
  • Such device has a circular plate 56 secured to gear 54 for rotation therewith about an axis 57, and the plate carrying a semi-circular inertia member 58 which is pivotally mounted thereon at 59.
  • the inertia member 58 is biased against stop member 60 by spring 61, stop member 60 being integral with plate 56 and spring 61 being secured to arm 62 which is also fixed relative to plate 56.
  • the inertia member 58 rotates with plate 56 and stays held against stop member 60 by spring 61.
  • the inertia member will pivot in a clockwise direction about its axis 59 so that the inertia member tooth 63 engages the ratchet teeth 64 in the surrounding annular shell 65.
  • This shell is journaled on but not driven by gear 54, and is normally biased in a clockwise direction by return spring 66.
  • the shell 65 will be driven in a counterclockwise direction, exerting a force on pu'll wire 67 to pivot the pawl 37 into engagement with the ratchet teeth 36 on reel 33 to stop unwinding rotation thereof.
  • the reel 33 will unwind and will drive the inertiasensing gear 54 at a faster but relatively constant speed. If the upward movement of the platform is interrupted the reel will stop. If the pressure in the lift cylinders builds up, then when the obstruction is removed the platform will attempt to. surge upwardly. This in turn will cause reel 33 to start to unwind at a rapid rate which in turn will cause the inertia-sensing device 55 to actuate the pawl 37 and lock the reel against further unwinding rotation. A subsequent clockwise, or winding, rotation of the reel will allow the inertia sensor to reset by springs 61 and 66, and will allow spring 41 to pivot the pawl 37 out of engagement with ratchet teeth 36.
  • Continual depression of foot pedal 22 admits further flow of pressurized air into the lift cylinders to begin the overpressurization thereof.
  • the foot pedal 22 is released.
  • a pressure relief valve 55 may be used to provide an audio signal to the operator indicating that the pressure in the lift cylinders has built up to the desired degree of overpressure.
  • the cable 25 With the lift cylinders in their overpressured condition, the cable 25 will be held under tension. Any lessening of loading on the platform, as for example by the workman stepping off the platform' onto the adjacent structure, will simply cause an increase in tension in the cable 25 but the platform will remain stationary. Conversely, any increase in loading will cause a corresponding reduction in cable tension. However, as long as the increased loading is insufficient to reduce the cable tension to zero, the platform will remain at the desired elevation.
  • the workman When it is desired to lower th platform, the workman simply depresses the foot pedal 24 to bleed air from the lift cylinders. As the overpressured air is bled therefrom the cable tension gradually decreases. After the overpressure condition has been relieved, the lift cylinders begin to contract, carrying the platform downwardly. Reel spring 34 now causes the reel to rotate to wind the cable on the reel. As soon as there is sufficient winding rotation, pawl 37 will be pulled to the left by spring 41. As the platform continues to descend, the reel 33 will continue to take up the cable so that it remains slack-free. At any time the operator may stop the descent of the platform when it reaches another desired elevation. Depression of the foot pedal 50 will then lock the scaffold against upward movement at this new height and the workman can then again overpressure the lift cylinders to stabilize the platform for work operations.
  • the workman wishes to return the platform to.a higher work elevation, he depresses the foot pedal 24 to bleed off the overpressure in the lift cylinders until the pressure is reduced to a point wherein there is a sufficient downward movement of the platform to reduce the pawl 37.
  • the platform may now be moved upwardly by depressing the foot pedal22.
  • the workman cannot elevate the platform to a higher position without first bleeding off the overpressure condition in the lift cylinders.
  • the workman is protected against sudden upward surge of the platform as would result from an overpressure condition in the normal operation of the scaffold.
  • the inertia-sensing device 55 will protect the workman against sudden upward surges in the event of abnormal operating conditions. If the lift cylinders are extending and the platform hangs up on an obstruction, air under pressure will continue to build up in the lift cylinders if the workman does not release the foot pedal 22. Eventually, the pressure in the lift cylinders may build up to a degree whereby the obstruction may be sheared off, releasing the platform for further upward movement. The initial upward movement of the platform will cause a rapid unwinding rotation of reel 33 which will be transmitted to the inertia device which in turn will pull pawl 37 into engagement with the ratchet teeth on the reel to stop the unwinding rotation of the reel.
  • the cable reel on the platform is advantageous since it enables a direct mechanical connection from the foot pedal to the pawl 37.
  • the cable could be anchored at its end to the platform and the cable reel mechanism could be mounted on the base, with a remote control mechanism being used to actuate the pawl from the platform.
  • a pneumatic lift assembly comprising: a base member, a platform member, lift cylinder means mounted on said base member and supporting said platform on its upper end, said lift cylinder means comprising telescoping rigid cylinders and being vertically extensible upon introduction of a gas under pressure thereinto, means for supplying gas to said lift cylinder means at a pressure sufficient to cause extension of said lift cylinder means and capable of supplying gas at a pressure substantially greater than that necessary to cause full extension of said lift cylinder means,
  • a pneumatic lift assembly as set forth in claim 1 and further including means responsive to sudden upward movement of said platform member for operating said cablesecuring means.
  • said personnel actuatable means and said movementresponsive means each being independently capable of operating said cablersecuring means.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Movable Scaffolding (AREA)
  • Types And Forms Of Lifts (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Seats For Vehicles (AREA)
  • Actuator (AREA)
US00270920A 1972-07-12 1972-07-12 Cable restraint for multi-stage pneumatic lift assembly Expired - Lifetime US3799290A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00270920A US3799290A (en) 1972-07-12 1972-07-12 Cable restraint for multi-stage pneumatic lift assembly
IT51413/73A IT989844B (it) 1972-07-12 1973-07-11 Perfezionamento nei ponteggi telescopici pluristadio con sistema di sollevamento pneumatico
JP7825973A JPS5727268B2 (xx) 1972-07-12 1973-07-11
DE19732335202 DE2335202A1 (de) 1972-07-12 1973-07-11 Kabelfesthaltevorrichtung fuer mehrstufig ausfahrbare hebebuehnen
AU58007/73A AU5800773A (en) 1972-07-12 1973-07-11 Cable restraint for multistage pneumatic lift assembly
FR7325434A FR2192059B3 (xx) 1972-07-12 1973-07-11
GB3333173A GB1392899A (en) 1972-07-12 1973-07-12 Pneumatic lift assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00270920A US3799290A (en) 1972-07-12 1972-07-12 Cable restraint for multi-stage pneumatic lift assembly

Publications (1)

Publication Number Publication Date
US3799290A true US3799290A (en) 1974-03-26

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ID=23033392

Family Applications (1)

Application Number Title Priority Date Filing Date
US00270920A Expired - Lifetime US3799290A (en) 1972-07-12 1972-07-12 Cable restraint for multi-stage pneumatic lift assembly

Country Status (7)

Country Link
US (1) US3799290A (xx)
JP (1) JPS5727268B2 (xx)
AU (1) AU5800773A (xx)
DE (1) DE2335202A1 (xx)
FR (1) FR2192059B3 (xx)
GB (1) GB1392899A (xx)
IT (1) IT989844B (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249642A (en) * 1991-03-22 1993-10-05 Japanic Corporation Lifting apparatus
US20130206509A1 (en) * 2010-04-02 2013-08-15 Asia Fire Protection Co., Ltd. Emergency escape device
CN104291011A (zh) * 2014-10-24 2015-01-21 嘉善五洲无油轴承有限公司 一种应用于钢丝绳的紧固器
US20170137269A1 (en) * 2015-11-16 2017-05-18 Zhejiang Dingli Machinery Co., Ltd. Order picker with a wiring mechanism
CN109594753A (zh) * 2018-12-05 2019-04-09 江苏春都钢结构工程有限公司 一种新型钢结构工程支架
CN110859165A (zh) * 2019-12-12 2020-03-06 吴祖柱 一种节能型防虫害用诱虫灯
US10959514B2 (en) * 2009-11-28 2021-03-30 Linak A/S Telescopic column, preferably for furniture

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140202U (xx) * 1976-04-19 1977-10-24
EP0016921A1 (de) * 1979-02-05 1980-10-15 Georg Fischer Aktiengesellschaft Teleskopbewegungselement
CN103085051B (zh) * 2013-01-23 2015-10-21 宁波电业局 一种继电保护工具平台
CN107055393B (zh) * 2017-05-09 2023-10-20 昆明理工大学 一种板材定位装修车
CN115303982B (zh) * 2022-09-14 2023-11-07 北京环境特性研究所 一种用于目标电磁特性测试的升降平台
CN115490119A (zh) * 2022-10-12 2022-12-20 河南省优品家居楼梯有限公司 一种外置式自重逃生梯

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050152A (en) * 1960-11-01 1962-08-21 Willard E Blain Hoists
US3150740A (en) * 1961-03-25 1964-09-29 Rubeli Jean Installation for an extensible supporting pole

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR750541A (xx) * 1932-02-12 1933-08-10
US3450368A (en) * 1967-08-15 1969-06-17 Pacific Scientific Co Safety harness device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050152A (en) * 1960-11-01 1962-08-21 Willard E Blain Hoists
US3150740A (en) * 1961-03-25 1964-09-29 Rubeli Jean Installation for an extensible supporting pole

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249642A (en) * 1991-03-22 1993-10-05 Japanic Corporation Lifting apparatus
US10959514B2 (en) * 2009-11-28 2021-03-30 Linak A/S Telescopic column, preferably for furniture
US20130206509A1 (en) * 2010-04-02 2013-08-15 Asia Fire Protection Co., Ltd. Emergency escape device
US9409042B2 (en) * 2010-04-02 2016-08-09 Asia Fire Protection Co., Ltd. Emergency escape device
EP2554218A4 (en) * 2010-04-02 2017-05-17 Asia Fire Protection Co., Ltd Emergency escape device
CN104291011A (zh) * 2014-10-24 2015-01-21 嘉善五洲无油轴承有限公司 一种应用于钢丝绳的紧固器
CN104291011B (zh) * 2014-10-24 2017-10-27 嘉善五洲无油轴承有限公司 一种应用于钢丝绳的紧固器
US20170137269A1 (en) * 2015-11-16 2017-05-18 Zhejiang Dingli Machinery Co., Ltd. Order picker with a wiring mechanism
US9914626B2 (en) * 2015-11-16 2018-03-13 Zhejiang Dingli Machinery Co., Ltd. Order picker with a wiring mechanism
CN109594753A (zh) * 2018-12-05 2019-04-09 江苏春都钢结构工程有限公司 一种新型钢结构工程支架
CN110859165A (zh) * 2019-12-12 2020-03-06 吴祖柱 一种节能型防虫害用诱虫灯
CN110859165B (zh) * 2019-12-12 2021-06-25 江西旺来科技有限公司 一种节能型防虫害用诱虫灯

Also Published As

Publication number Publication date
JPS5727268B2 (xx) 1982-06-09
GB1392899A (en) 1975-05-07
FR2192059B3 (xx) 1976-06-25
IT989844B (it) 1975-06-10
DE2335202A1 (de) 1974-01-31
JPS4992821A (xx) 1974-09-04
AU5800773A (en) 1975-01-16
FR2192059A1 (xx) 1974-02-08

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AS Assignment

Owner name: WESTPAC BANKING CORPORATION, CALIFORNIA

Free format text: SECURITY INTEREST;ASSIGNOR:UP-RIGHT, INC., A CA CORP.;REEL/FRAME:006142/0178

Effective date: 19920228

AS Assignment

Owner name: UP-RIGHT, INC., A CALIFORNIA CORPORATION, CALIFORN

Free format text: TERMINATION OF ASSIGNMENT;ASSIGNOR:W.R. CARPENTER HOLDINGS PTY, LIMITED;REEL/FRAME:007132/0277

Effective date: 19940804

Owner name: W. R. CARPENTER HOLDING PTY. LIMITED, AUSTRALIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WESTPAC BANKING CORPORATION, AS AGENT FOR ITSELF AND THE BANKS;REEL/FRAME:007132/0496

Effective date: 19940804