US3703218A - Rescuing device - Google Patents

Rescuing device Download PDF

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Publication number
US3703218A
US3703218A US157516A US3703218DA US3703218A US 3703218 A US3703218 A US 3703218A US 157516 A US157516 A US 157516A US 3703218D A US3703218D A US 3703218DA US 3703218 A US3703218 A US 3703218A
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United States
Prior art keywords
supporting member
rope
cylinder
cable
person
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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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US157516A
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English (en)
Inventor
Otto Brda
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/005—Rescue devices for passengers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope

Definitions

  • ABSTRACT Rescuing device for rescuing persons from the chairs of inoperative chairlifts or the like in which on a supporting member rollers are provided, against which the cable carrying the chairs is pressed by a braking plate, said braking plate being movable on the supporting member in a direction normal to the extension of the cable. 0n the braking plate spring means are acting, which can be compressed by an adjustable lever.
  • On the supporting member there is provided a cylinder, supported by a free-wheeling bearing rotatable in one direction of rotation and not rotatable in the other.
  • a rope is wound around the outer periphery of the cylinder and to a first end of the rope a belt is connected such that a person to be rescued and sitting in the belt by its weight generates a frictional braking force between the rope and the outer periphery of the cylinder.
  • a person participating in the rescuing operation can slide down an inclined cable to which the chairs are connected, while sitting on a transporting means connected to the supporting member and control its speed by operating the adjustable lever.
  • the invention relates to a rescuing device, in particular to a rescuing device, which is useful in rescuing persons from chairs, which are connected to a rope or cable for the purpose of transporting persons above the ground over a certain height difference.
  • the rescuing device can be used for rescuing persons from the chairs of chairlifts or ropeways and/or similar means for transporting persons along cables, ropes or the like over a certain height difference above the ground.
  • the rescuing device is used when said chairlifts or the like become inoperative because some malfunction occurs in their operating machinery, and when the persons sitting in the chairs are exposed to cold wheather or other health hazzards.
  • Such devices do not have any means for rescuing a person. Further, the control of the speed, with which the person sitting in the belt can slide down the cable, is not satisfactory. In view of the fact that the speed is controlled by a wedging action effected by the weight of person and balanced by a continuous force applied to a lever by the same person, such control is not safe enough. Further, such device is not provided with means for continuing a ride down an inclined cable beyond the point, at which a first chair, from which a person has to be rescued, is connected to the cable.
  • a rescuing device for rescuing persons from the chairs of ropeways, chairlifts and the like over comprises a supporting member, to which rolling means are attached.
  • the rolling means are brought to roll on the cable, against the other side of which frictional breaking means are pressed by an adjustable member acting on the frictional breaking means via compressible spring means.
  • the supporting member further is provided with cylinder means, which are supported in a free-wheeling manner in order to be rotatable only in one direction of rotation and blocked in the other direction of rotation; further, there are provided rope means, which are wound around the cylinder means at least one and a half times; belt means are connected to the first end of said rope means, this first end, when being pulled, acting on said cylinder means in the direction in which a rotation is not possible.
  • transporting means are connected to said supporting member such that a first person sitting on the transporting means and operating the adjustable member can slide down the inclined cable to bring the device into the vicinity of a second person to be rescued and fasten the beltmeans around said second person. Then, the second person can controlledly be moved down to the ground by gradually releasing the second end of the rope means and thereby allowing for a frictional move ment of said rope means around the cylinder means in the direction in which the rotation of the cylinder means is blocked.
  • FIG. 1 is a partial side view of a rescuing device according to the invention
  • FIG. 2 is a cross-sectional view along the line Il-Il in DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • the numeral 1 indicates a cable, to which at certain distances chairs are connected (not shown, in which persons can be transported above the ground to overcome a certain height difference.
  • the cable 1 is part of a chairlift or ropeway as used for transporting persons on skislopes. From these chairs persons must be rescued when the lift becomes inoperative because of some malfunction occurs in the associated machiner-y.
  • the rescuing device 2 On the cable 1, there hangs the rescuing device 2, which, as can be seen from FIG. 2, comprises a U- shaped supporting member 6. One leg the member 6 is enforced by an enforcing plate 7, to which at 19 there are pivotally connected two connecting plates 21 and 22. The plates 21, 22 are fixed to a vertical extending bar 3, which carries a plurality of horizontally extending bars 20, to form a ladder-type transportingmeans which is part of the rescuing device 2.
  • rollers 8 constitute rolling means, by which the rescuing device can roll along the cable 1. As can be seen from FIG. 1 and FIG. 2, this rescuing device is hanged on the cable 1 in such a manner that the rollers 8 come to bear on the upper side of said cable.
  • a braking plate 12 which serves as a frictional braking means. It is guided in slots (not shown), provided in'the' left (in FIG. 2) leg of the supporting member 6, said slots receiving protruding extensions of said plate 12.
  • the guiding arrangement is such said the plate 12 can be moved in a direction normal to the direction, in which the cable 1 extends beneath the rollers 8.
  • the distance between the rollers 8 and the plate 12 is such that by moving the rescuing device over the cable 1, the cable 1 practically is inserted in the space between the roller 8 and the plate 12. This is done by hanging the rescuing device over the cable 1.
  • the plate 12 is pressed against the lower surfache of the cable 1 in order to provide a frictional braking force between them and thereby effect a braking action.
  • This is achieved by spring means 13 provided between the braking plate 12 and a further plate 14.
  • the plate 14 is movable in same manner and direction as the plate 12.
  • the spring means 13 are formed by disk-shaped plate-springs 13, provided in two packages (cf. FIG. 1) to exert an equal pressure along the extension of the braking plate 12 on the same.
  • suitable spring means e.g., leaf springs or laminated springs is possible.
  • the plate 14 can be moved in the direction normal to the extension of the cable 1 through the rescuing device by cam means 15, which are an integral part of a lever 16 and fixed to it e.g. by welding.
  • the lever 16 is pivotally connected to the supporting member 6, as indicated at 17.
  • the cam 15 presses the plate 14 in a direction normal to the cable 1.
  • the braking plate 12 is also moved, until it comes into contact with the cable 1.
  • the springs 13 are compressed. Consequently, by adequately positioning the lever 16 and thereby moving the plate 14, the springs 13 can controllably be compressed and thereby the pressure exerted by them upon the braking plate'l2 and via the same on the cable 1 be easily controlled.
  • the lever 16 is adjustable and for this purpose is provided with notches 18, which fit into a member connected to the supporting member 6 and provided with grooves corresponding to the notches 18.
  • the notches 18 are pressed into engagement with the grooves by suitable spring means (not shown), arranged within the lever. They can be released by pushing a knob provided at the end of the adjustablejever 16.
  • the right leg of the U-shaped upper part of the supporting member 6 at its end is at 9 pivotally connected to a locking plate 10, which, as shown in FIG. 2, can be opened in such a manner that the cable 1 can easily brought into the open space between the rollers 8 and the braking plate 12, when the braking plate 12 in the position as shown in FIG. 1 and 2.
  • a suitable lock 12' On the locking plate 10, there is provided a suitable lock 12', which, when the locking plate is moved down to the right to extend parallel to the other oeg of the supporting member 6, engages an annular groove provided in the member 1 1, which is supported by the supporting member 6, and which at the same time serves as a pivot for the adjustable lever 16.
  • the cable is completly surrounded in a cage -lilre manner and secured against an accidental slip out of the contact of the rollers 8 and the braking plate 12 respectively.
  • This feature is of importance for providing a high degree of safety.
  • a cylinder 23 supported by a shaft 24, fixed to the supporting member 6.
  • the bearing of the cylinder 23 is such that the cylinder can be rotated in one direction of rotation only, whereas the rotation in the other direction of rotation is blocked.
  • the construction of such a free-wheeling bearing is known in the art. It basically consists of cylindrical rollers inserted between the inner hub of the cylinder 23 and the shaft 24 and a specially constructed ring (not shown), which in one direction of rotation of the cylinder 23 guides the rollers to act as wedges between said ring and the inner hub of the cylinder 23 and thereby blocks the rotation, whereas no such wedging action is achieved in the other direction of rotation and the cylinder 23 is therefore freely rotatable.
  • the cylinder 23 is provided with flanges.
  • a rope 4 is wound two and a half times.
  • the cylinder 23 being rotatable in one direction only, when one end of the rope is pulled, the cylinder is rotated correspondingly, whereas, when the other end of the rope is pulled, the cylinder 23 does not rotate with it, such that a frictional force between the rope 4 and the surface of the cylinder 23 must be overcome in order to achieve a movement of the rope 4. Consequently, if a load is connected to said last mentioned end of the rope, it can be easily balanced by a fraction of the force applied to the other end of the rope. The relation between those two forces is well known.
  • first guiding means 25 and 26 for guiding the ends of the rope 4 at a predetermined position to and away from the cylinder 23.
  • the belt 5 consists of one horizontally extending member 27 and two further members 28 and 29, extending normally thereto and movable on the member 27 with loops provided at their ends 31 and 33.
  • the horizontally extending member 27 of the belt 5 is put around the back of the person to be rescued; it extends under the arms of that persons and from thereon inupward direction.
  • the members 28, 29 are then put from the outside around the upper legs of the person to be rescued, extending therefrom in upward direction along the inner side of the legs. All four ends, to which rings are connected, are then held together by a spring safety hook 32 connected to the end of the rope 4.
  • the rescuing device 2 as shown in FIG. 1 and 2 is put over the cable 1 such that the cable 1 is positioned between the rolling means 8 and the frictionalbraking means 12. Then, via the adjustable lever 16, the plate 14, and the spring means 13, pressure is applied to the plate 12 to bring it into contact with the cable 1. Initially, the pressure is such that no movement of the rescuing device 2 along the inclined cable 1 is possible. Then, a person participating in the rescuing operation mounts the rescuing device by stepping on the transporting means 3, 20.
  • the second end of the rope is slightly pulled.
  • the cylinder 23 is rotated and the person to be rescued and sitting in the belt 5 is slightly lifted such that he can be moved out of the chair; he is now freely suspended in the air.
  • This pulling can be done either by the first person mentioned which rides down the cable 1 with the rescuing device 2 or by a third person from the ground.
  • the second end of the rope is slowly released.
  • This release again is done either by a third person standing on the ground below the chair or by the first person which has been sliding down the inclined cable 1 with the rescuing device 2. It also can be done by the person to be rescued himself, if he is still capable of providing help in its own rescuing operation. During this part of the operation, the feature of the present invention becomes important, which lies in the fact that only a small force is necessary to control the downward movement of the person to be rescued and connected to the first end of the rope 4.
  • the person which initially rode down the inclined cable 1 with the rescuing device 2, completely releases the adjustable lever 16 and opens the locking means 10,12 and takes the whole rescue device 12 from the cable 1. He puts it again on the cable 1, but in a position downwards the cable behind the point at which the chair, from which a person has been rescued as described above, is connected to the cable. He than closes the locking means 10, 12' and adjusts the lever 16 in such a manner, that no movement of the rescuing device 2 is possible. He than again mounts the rescuing device 2 and starts a further ride down the cable 1 by gradually releasing the lever 16. The rescuing operation is then continued as often as it is necessary to reach all chairs connected to the cable 1.
  • the selecion of the materials to be used for the cylinder 23 and the rope 4 has to be such that the heat being generated by the frictional movement of the rope 4 during the lowering of a person to be rescued can easily be tolerated.
  • the material, from which the cylinder 23 is made has been preferably a aluminum alloy of the type AlCuMgPb. its heat-conductivity is sufficent.
  • a suitable diametor of the rope 4 is 9 mm.
  • REscuing device for rescuing persons from ropeways, chairlifts and similar means for transporting persons along cables, ropes or the like over a certain height difference above the ground, comprising a. a supporting member;
  • frictional braking means provided on said supporting member and movable thereon, which in a first position contact the rope or cable to exert a frictional braking force on the same and in a second position provide a predetermined space between the braking means and the rolling means;
  • cylinder means supported on said supporting member by a free-wheeling bearing means, which allow a rotation of the cylinder means in one direction of rotation and block their rotation in the other direction of rotation;
  • belt means releaseably connected to the first end of said rope means, whereby this first end acts on said cylinder means in the direction, in which a rotation of the cylinder means is blocked;
  • transporting means connected to said supporting member; such that a first person sitting on the transporting means and operating the adjustable member can slide down an inclined rope or cable into the vicinity of a second person to be rescued and fasten said belt means around said second person, and wherein the second person can controlledly be moved down by gradually releasing the second end of said rope means.
  • Rescuing device in accordance to claim 1 further comprising guiding means attached to the supporting member for guiding the ends of said rope means at a predetermined position to and away from said cylinder means.
  • Rescuing device in accordance to claim 2 further comprising second guiding means attached to the sup porting member for preventing a movement of the rope means in the direction of the axis of the cylinder means;
  • adjustable member is provided with cam means to act on said spring means and further is provided with notches releasably engaged with grooves provided on the supporting member.
  • the transporting means comprise essentially vertically extending first bar means connected to said supporting member and further essentially horizontally extending bar means connected to said first bar means.
  • said belt means comprise a. a first member with fastening means connected its two ends;

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Lowering Means (AREA)
US157516A 1970-07-20 1971-06-28 Rescuing device Expired - Lifetime US3703218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2035933A DE2035933C3 (de) 1970-07-20 1970-07-20 Bergungsgerät für Personenseilbahnen, Sessellifte o.ä

Publications (1)

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US3703218A true US3703218A (en) 1972-11-21

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ID=5777307

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Application Number Title Priority Date Filing Date
US157516A Expired - Lifetime US3703218A (en) 1970-07-20 1971-06-28 Rescuing device
US40779873 Expired USRE28273E (en) 1970-07-20 1973-10-19 Rescuing device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US40779873 Expired USRE28273E (en) 1970-07-20 1973-10-19 Rescuing device

Country Status (10)

Country Link
US (2) US3703218A (enrdf_load_stackoverflow)
JP (1) JPS5335399B1 (enrdf_load_stackoverflow)
AU (1) AU462368B2 (enrdf_load_stackoverflow)
CA (1) CA940474A (enrdf_load_stackoverflow)
DE (1) DE2035933C3 (enrdf_load_stackoverflow)
ES (1) ES393378A1 (enrdf_load_stackoverflow)
FR (1) FR2103092A5 (enrdf_load_stackoverflow)
GB (1) GB1345440A (enrdf_load_stackoverflow)
NO (1) NO128987B (enrdf_load_stackoverflow)
SE (1) SE378086B (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197816A (en) * 1978-04-07 1980-04-15 Charles Lusch Multi-purpose human harness
US4458617A (en) * 1980-05-06 1984-07-10 John M. Beall, Jr. Board sailing harness
US4538703A (en) * 1982-09-30 1985-09-03 Research & Trading Corporation Climbing aid and safety descent system
US4730703A (en) * 1986-03-22 1988-03-15 AGIMA Innovation & Management AG. Load lowering device with a rope or cable drum
EP0279929A3 (de) * 1986-12-27 1989-06-07 Heinrich Stephan Zenhäusern Absturzsicherung
US4917215A (en) * 1988-08-23 1990-04-17 Grumman Aerospace Corporation Space station transport system for extravehicular activity
WO1994004223A1 (en) * 1992-08-12 1994-03-03 Pickering Gregory R Rescue system
US5348117A (en) * 1992-08-12 1994-09-20 Pickering Gregory R Rescue system
US5408933A (en) * 1994-01-18 1995-04-25 Tanner; Mark B. Device facilitating rescue from ski lifts
US5729843A (en) * 1996-06-04 1998-03-24 Manthey; Michael F. Assembly and method for moving a person
US6474442B1 (en) * 1998-06-19 2002-11-05 Latchways Plc. Safety device
CN100429102C (zh) * 2006-10-10 2008-10-29 中国矿业大学 索道断电制动器
US9677333B1 (en) * 2014-10-01 2017-06-13 Climb Tech, Llc Unfurlable rescue ladder
US10207130B2 (en) * 2017-04-24 2019-02-19 United States Of America As Represented By The Secretary Of The Air Force Fast rope insertion system
US10213628B1 (en) * 2017-04-17 2019-02-26 The United States Of America As Represented By The Secretary Of The Air Force Belay braking system
CN114426033A (zh) * 2021-12-31 2022-05-03 淮北矿业股份有限公司 一种猴车钢丝绳提升张拉紧固装置
CN116407791A (zh) * 2023-03-29 2023-07-11 应急管理部上海消防研究所 一种多功能便捷救援支架

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520895A (en) 1983-09-21 1985-06-04 Armstrong James A Building wall descent device having manually operated brake means
EP0324830B1 (en) * 1987-07-02 1992-08-26 SMITH, Flint K. Mobile aerial rapid rescue system
US4934277A (en) * 1987-07-02 1990-06-19 Evacuation Systems, Inc. Mobile aerial rapid rescue system
SE521204C2 (sv) * 1997-11-06 2003-10-07 Act Safe Systems Ab Klätteranordning
ITMI20120483A1 (it) * 2012-03-27 2013-09-28 Camp Spa Bloccante ventrale
EP2915770B1 (en) * 2014-03-03 2016-10-05 Actsafe Systems AB User interface for a portable power driven system
CN107907651B (zh) * 2017-11-23 2023-06-30 中国工程物理研究院电子工程研究所 能够防止误操作的安全防爆测试装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225177A (en) * 1938-11-01 1940-12-17 Alfred J Fessman Escape device
US2844187A (en) * 1956-10-23 1958-07-22 Scoville Thomas Nesbit Vibration free support
US3177544A (en) * 1962-09-28 1965-04-13 Murdock Nelson Safety line clamp
US3403750A (en) * 1966-01-13 1968-10-01 Pomagalski Jean Rescue device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225177A (en) * 1938-11-01 1940-12-17 Alfred J Fessman Escape device
US2844187A (en) * 1956-10-23 1958-07-22 Scoville Thomas Nesbit Vibration free support
US3177544A (en) * 1962-09-28 1965-04-13 Murdock Nelson Safety line clamp
US3403750A (en) * 1966-01-13 1968-10-01 Pomagalski Jean Rescue device

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197816A (en) * 1978-04-07 1980-04-15 Charles Lusch Multi-purpose human harness
US4458617A (en) * 1980-05-06 1984-07-10 John M. Beall, Jr. Board sailing harness
US4538703A (en) * 1982-09-30 1985-09-03 Research & Trading Corporation Climbing aid and safety descent system
US4730703A (en) * 1986-03-22 1988-03-15 AGIMA Innovation & Management AG. Load lowering device with a rope or cable drum
EP0279929A3 (de) * 1986-12-27 1989-06-07 Heinrich Stephan Zenhäusern Absturzsicherung
US4917215A (en) * 1988-08-23 1990-04-17 Grumman Aerospace Corporation Space station transport system for extravehicular activity
US5540307A (en) * 1992-08-12 1996-07-30 Pickering; Gregory R. Rescue system
WO1994004223A1 (en) * 1992-08-12 1994-03-03 Pickering Gregory R Rescue system
US5348116A (en) * 1992-08-12 1994-09-20 Pickering Gregory R Rescue system
US5348117A (en) * 1992-08-12 1994-09-20 Pickering Gregory R Rescue system
WO1994022533A1 (en) * 1993-04-02 1994-10-13 Pickering Gregory R Rescue system
US5408933A (en) * 1994-01-18 1995-04-25 Tanner; Mark B. Device facilitating rescue from ski lifts
US5729843A (en) * 1996-06-04 1998-03-24 Manthey; Michael F. Assembly and method for moving a person
US6474442B1 (en) * 1998-06-19 2002-11-05 Latchways Plc. Safety device
CN100429102C (zh) * 2006-10-10 2008-10-29 中国矿业大学 索道断电制动器
US9677333B1 (en) * 2014-10-01 2017-06-13 Climb Tech, Llc Unfurlable rescue ladder
US10213628B1 (en) * 2017-04-17 2019-02-26 The United States Of America As Represented By The Secretary Of The Air Force Belay braking system
US10207130B2 (en) * 2017-04-24 2019-02-19 United States Of America As Represented By The Secretary Of The Air Force Fast rope insertion system
CN114426033A (zh) * 2021-12-31 2022-05-03 淮北矿业股份有限公司 一种猴车钢丝绳提升张拉紧固装置
CN114426033B (zh) * 2021-12-31 2024-04-19 淮北矿业股份有限公司 一种猴车钢丝绳提升张拉紧固装置
CN116407791A (zh) * 2023-03-29 2023-07-11 应急管理部上海消防研究所 一种多功能便捷救援支架
CN116407791B (zh) * 2023-03-29 2023-11-07 应急管理部上海消防研究所 一种多功能便捷救援支架

Also Published As

Publication number Publication date
CA940474A (en) 1974-01-22
GB1345440A (en) 1974-01-30
DE2035933B2 (de) 1974-06-27
DE2035933A1 (de) 1972-01-27
SE378086B (enrdf_load_stackoverflow) 1975-08-18
AU462368B2 (en) 1975-06-26
JPS5335399B1 (enrdf_load_stackoverflow) 1978-09-27
FR2103092A5 (enrdf_load_stackoverflow) 1972-04-07
DE2035933C3 (de) 1975-02-20
NO128987B (enrdf_load_stackoverflow) 1974-02-11
USRE28273E (en) 1974-12-17
ES393378A1 (es) 1974-10-16
AU3146871A (en) 1973-01-25

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