US3759346A - Multipurpose device for moving persons or loads over a height difference - Google Patents

Multipurpose device for moving persons or loads over a height difference Download PDF

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Publication number
US3759346A
US3759346A US00157591A US3759346DA US3759346A US 3759346 A US3759346 A US 3759346A US 00157591 A US00157591 A US 00157591A US 3759346D A US3759346D A US 3759346DA US 3759346 A US3759346 A US 3759346A
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cylinder
rope
plate
rotation
load
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US00157591A
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English (en)
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O Brda
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    • 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
    • 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

Definitions

  • ABSTRACT A device for roping down persons and/or loads from a certain height above the ground, comprising a supporting member, on which a cylinder is supported by a free wheeling bearing such that the cylinder can be rotated in one direction only and its rotation is blocked in the other direction of rotation.
  • a rope is wound around the periphery of said cylinder at least one and a half times and on one end thereof there are provided means for connecting a load or person, this one end acting on the cylinder in the direction, in which the rotation of the cylinder is blocked.
  • a load or person can be lowered down to the ground and a braking action is effected by friction generated between the rope and the periphery of the cylinder.
  • the person to be roped down is connected to the supporting member, one end of the rope is connected to the place, from which the person or load is to be roped down, and the rope is wound around the cylinder at least once.
  • the invention relates to a device for roping down persons and/or loads from a certain height above the ground and especially for lowering down persons from places, to which normal access in the form of ladders is not available.
  • the device in accordance with the invention is useful in emergency situations in buildings or the like, when the use of the means normally providing access to a certain place is not possible because of fire or other emergency-creating events.
  • the device in accordance to the present invention is not only useful to bring down persons and/or loads from places at which an emergency exists but in all instances, in which the difficulty of access is inherent in the construction of such a place, eg platforms used in construction scaffoldings and the like.
  • the invention may be used to transport persons from the upper cabins of cranes or other elevated structures, when they become unconscious and can not climb down the available ladders and cannot be transported thereon.
  • the present invention is also useful in the connection with lowering down persons from airborne platforms, such as helicopters or the like.
  • the device according to the present invention can generally be used to rope down loads from elevated places.
  • the invention can be used in instances, in which heretofore movable fire ladders have been used.
  • the use of the device in accordance to the invention, especially in instances where the height difference is substantial, in comparison with these ladders is safer, more reliable, and less costly.
  • the invention can be used, wherever heretofore pulleys have been used for roping down loads and- /or persons or for balancing rather large pulling forces by a much lower controlling force.
  • the disadvantage of pulleys is a consequence of the loose arrangement of various rollers on a rope, which maintain their positions only when the ropes are tightened.
  • the various parts are likely to dissassemble in their relation to each other during the preparation of the operation. This makes the pulleys unsafe and difficult to handle. This is especially important when persons are to be transported.
  • the device for roping down persons or loads over a height difference in accordance to the present invention comprises a supporting member, to which bolt means are connected.
  • the bolt means support cylinder means which are rotatable in one direction only, whereas they are blocked in the other direction of rotation.
  • the cylinder means there are wound rope means, such that, when the first end of the rope means is pulled, the cylinder thereby is rotated, whereas, when the second end of the rope is pulled, the rope slides over the fixed surface of the cylinder, thereby generating a braking frictional force between the cylinder and the rope, which effects a braking action on a person or load connected to said second end of the rope, whereby it becomes possible to control the speed of the downward movement of the load or person by gradually releasing said first end of the rope and applying a relatively small force only to this first end.
  • the means for connecting a load or person are provided on the supporting member, whilst the second end of the rope is connected to the place, from which the person or load is to be roped down.
  • the first end of the rope is connected to the supporting member and a roller is inserted in the loop formed by this first embodiment such that by releasing the second end, the load can be lowered, combining the effect of a conventional pulley and the device in accordance to the present invention.
  • FIG. 1 is a perspective view of the device in accordance to the invention.
  • FIG. 2 is a front view of the device according to FIG.
  • FIG. 3 is a side view of the device in accordance to FIG. 1;
  • FIG. 4 is a cross sectional view of the device along the line IVIV in FIG. 2;
  • FIG. 5 describes one mode of operation of the present invention
  • FIG. 6 describes a second mode of operation of the present invention
  • FIG. 7 describes a third mode of operation of the present invention.
  • FIG. 8 describes a fourth mode of operation of the present invention.
  • the device in accordance to the present invention comprises a supporting member 1, a cylinder 2 connected thereto, and a rope 15 wound around the cylinder 2.
  • a bearing 12 On the supporting member 1, there is fastened a bolt 12, on which the cylinder 2 is supported by a freewheeling bearing, connected thereto by a screw-nut 3.
  • a freewheeling bearing On the supporting member 1, there is fastened a bolt 12, on which the cylinder 2 is supported by a freewheeling bearing, connected thereto by a screw-nut 3.
  • a bearing essentially consists of an inner hub 7' and an outer hub 7", between which clamping rollers 5 are provided.
  • the inner hub 7' is fixed to the bolt 12 by a wedge 7.
  • the outer hub 7" is connected to the cylinder 2 by keys 6.
  • the freewheeling bearing further comprises a clamping ring (not shown), positioned between the hubs 7 and '7", which is shaped such that in one direction of rotation of the inner hub 7' with respect to the other hub 7" the clamping rollers 5 are moving to exert a wedging force between the clamping ring and the hubs of the bearing and thereby block the rotation of both hubs in relation to each other.
  • Numerals 8 and 9 indicate roller bearings inserted between the bolt 12 and the cylinder 2 along that portion of the bolt, along which the free-wheeling bearing does not extend. Further, there are provided distance rings and 4, which serve to provide a certain distance between the cylinder 2 and the supporting member 1.
  • the cylinder 2 further is provided with flanges 21 in order to limit the movement of a rope on the surface of the cylinder 2 in the direction parallel to the axis of rotation of the cylinder 2.
  • a rope 15 is wound around the cylinder 2 at least one and a half times. In the embodiment shown, it is wound around the cylinder 2 two and a half times. How many times it is wound around the cylinder depends on the desired relation of the weights to be roped down with the device and the force available to control their downward movement. As can be seen from FIG. 1, the number of windings can easily be changed, since the bracket or supporting member 1 does not interfere with the removal ofa turn of rope from the cylinder or drum 2.
  • the cylinder 2 can be moved to rotate in one direction by pulling the first end of the rope whereas, when the other end 23 of the rope is pulled, no rotation of cylinder 2 takes place and the frictional force generated between the rope and the surface of the cylinder 2 effects a braking action.
  • the rope 15 can only be moved along the non-rotation surface of the cylinder 2 by overcoming this frictional force, which depends on the force active at the other end, the circumferential angle, along which the rope is wound around the cylinder, and the friction characterists of the rope and the surface of the cylinder. This relation is well known.
  • a ring 23 which in one mode of operation of the invention, serves to connect a load or person thereto.
  • the other end as will be described later, either is provided with similar connecting means or is left free in order to be handled by a person.
  • guiding means 14,14 and 14 which serve to guide the ends of the rope 15 to and away from the cylinder 2 at a predetermined position.
  • a still further guiding means 13 is connected to the supporting member 1 and, as can be seen from FIG. 3 serves to prevent a displacement of rope 15 along the surface of the cylinder 2 in a direction parallel to the axis of its rotation when that cylinder is rotated. It rests against one winding of the rope 15, which otherwise, when the cylinder 2 is rotated, would tend to slowly move in the direction of the axis of the cylinder 2. Thus, a tangling of the rope 15 on the surface of the cylinder is prevented.
  • the guiding means 14 in one mode of operation, are used instead of the guiding means 14.
  • the guiding means 14,14,1l4i" are formed by rings connected to the supporting member 1 in any suitable manner such as weld-
  • the supporting member 1 further is provided with two holes 16,16, which are adapted to receive spring safety hooks.
  • One such spring safety hook 24 is shown in FIG. 1.
  • the cap 17 serves to protect the screw nut 3, by which the bearing supporting the cylinder 2 is connected to the bolt 12.
  • an Aluminum alloy of the type AlCuMgPb has proved satisfactory. Its heatconductivity is large enough to prevent the cylinder, when in operation, to become heated to such an extent that the strength of the material, of which the rope 15 is made, is essentially affected.
  • a polyamid as available under the registered trade mark perlon, has been satisfactory.
  • a suitable diameter of the rope 15 is 9 mm.
  • the supporting member 1 is connected to the place, from which the person has to be roped down.
  • Such means for connecting the supporting member to such a place may be further rope means provided with suitable rings and hooks, as indicated in FIG. 5.
  • the place, from which a person can be roped down may be any place, from which such rescuing action may be desirable, such as a crane, a construction platform on a construction scaffold, a building, in which an emergency situation is present, or an airborne platform, such as a helicopter or the like.
  • the device for roping down persons or loads over a height difference in accordance to the present invention is suitable for a variety of applications, for which only some examples have been given.
  • a person which assists in the operation of roping down, controls the speed, with which the person sitting in the belt 26 is moved down.
  • the weight of the person, sitting in the belt 26, thus can be controlled by a much smaller force.
  • the end 22 with the spring safety hook 25 and the belt 26 may be pulled up again; that is easily possible, since in the direction, in which it then is moved, the cylinder 2 is freely rotatable and rotates with the rope 15 when pulled by the person standing on the ground.
  • the person sitting in the belt 26 still is able to assist in the operation, he can himself hold the rope and control the gradual release of its other end and thereby balance the force of his own weight. Further, the release of the end of the rope 15, opposite to the end 22, can be done from any desired position, including the place, from which a person has to be rescued, since the guiding means 14 always serve to direct the rope end at predetermined positions to and away from the cylinder 2 such that no tangling of the rope 15 can occur.
  • FIG. 6 A second possible mode of operation is shown in FIG. 6, where the person to be roped down is connected to the supporting member 1, by suitable rope means connected to the hole 16 provided therein.
  • the force applied to the other end of the rope by a person standing on the ground or by the person to be roped down himself controls the speed with which the device 1 moves down the rope.
  • FIG. 7 A still further way of operating the disclosed device for roping down a person and/or loads can be seen from FIG. 7.
  • two devices in accordance to the invention are used.
  • the first device is used in the same manner as described in connection with FIG. 6.
  • the person to be roped down (not shown) is connected to the hole 16 provided in the supporting member 1.
  • the operation is the same as described in connection with FIG. 6.
  • a second device (at left in FIG. 7) is used as safety-device. It is operated in the same manner as described in the connection with FIG. 5, the first device being connected in the same manner to the second device, in which in FIG. 5 the person to be roped down has been connected to the end 22 of the rope 15.
  • the second one can be used to pull the first one up again.
  • a load 33 can also be pulled upward by suitable action on the first end of the rope pulled upward by suitable action on the first end of the rope 15 (opposite to the end 22), since the cylinder 2 is freely rotatable in the direction, in which it is turned when the end opposed to the end 22 is pulled, such that the device for the purpose of moving certain loads upwards acts in the same manner as a usual pulley, whereas'the advantages for balancing a weight much larger than the force available for controlling its downward movement, as described in connection with FIG. 5 to 8, are maintained.
  • the invention creates a universially applicable device which can be used for moving persons or loads over a substantial height difference and which particularly is adapted to rope down persons from a places or platforms, from which other means for leaving are not available.
  • a multipurpose device for moving loads or persons over a height difference comprising:
  • bolt means fixedly connected at one end thereof to one side of said plate and extending transversely therefrom;
  • bearing means for rotatably supporting said cylinder on said fixed bolt means, said bearing means including roller locking friction clutch means for preventing the rotation of the cylinder with respect to the bolt means in one direction of the rotation and allowing free rotation of the cylinder on the bolt means in the opposite direction of rotation;
  • a rope having a first end and a second end and rope guide means affixed to said plate for guiding said rope relative to said rotatable cylinder;
  • said rope being wound around said cylinder at least one and a half times, whereby when said first end of said rope is pulled the cylinder rotates and when the second end of the rope is pulled the rotation of the cylinder is blocked and a braking action is effected by the frictional force generated between the rope and the surface of the cylinder;
  • g. means for connecting said first or second end of the supporting plate to a fixed point or to the load, whereby the device may be used for lowering and lifting as well as for moving the device along the rope.
  • roller locking friction clutch means comprises a plurality of wedging rollers.
  • the device according to claim 1 comprising further guide means for guiding said rope above and below said rotatable cylinder whereby the rope ends extend away from said cylinder in opposite directions, means for connecting said first rope end to said fixed point and means for connecting a load or person to said supporting plate at one end thereof.
  • said guide means comprise two guide members attached to said supporting plate in positions below said rotatable cylinder for guiding said rope ends in parallel to each other and in the same direction away from said cylinder.
  • the device according to claim 1 comprising a rope guide block affixed to said supporting plate and extending to the surface of said rotatable cylinder for preventing movement of the rope in the longitudinal direction of the cylinder surface.
  • said sup porting plate comprises two plate portions and a slanted plate section inter-connecting said plate portions whereby the plate portions extend in parallel planes, said cylinder being attached to one of said two plate portions so that the slanted plate section and the other plate portion extend partially over the cylinder.
  • said guide means comprise a first guide member located substantially in the plane of said other plate portion below and to one side of said cylinder, and a further guide member located substantially adjacent to said free end of said cylinder.
  • a device for moving loads or persons over a height difference comprising:
  • pulley means inserted in a loop formed by the rope means between its second end, when fastened to said fastening means, and the position at which they are led to and away from said cylinder means;
  • means for connecting a load or person to the said pulley means such that by gradually releasing the first end of said rope means, a load or person can be lowered down and said lowering operation can be controlled by a force substantially less than the weight of the load or person, and a load or person can be lifted by pulling said first end of the rope means with the force less than the weight of the load or person.
  • a device for roping down persons or loads over a height difference comprising:
  • a first rope extending from a fixed support above the first supporting plate and wrapped around the corresponding cylinder at least one and a half times and thence extending downwardly;
  • f. means for supporting said second plate; and g. a second rope extending from said first plate at least one and a half times around the cylinder rotatably supoorted by the second plate and thence extending downwardly; whereby the cylinders are rotatable when the respective ropes extending downwardly therefrom are pulled, the rotation of the cylinder on the first plate is blocked and a braking action is effected by frictional force generated between the first rope and the surface of the respec the lowering of said load.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Pulleys (AREA)
  • Types And Forms Of Lifts (AREA)
US00157591A 1970-12-31 1971-06-28 Multipurpose device for moving persons or loads over a height difference Expired - Lifetime US3759346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2064761A DE2064761C3 (de) 1970-12-31 1970-12-31 Abseilgerät mit Laufseil zum Abseilen von Personen oder Lasten

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US3759346A true US3759346A (en) 1973-09-18

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US00157591A Expired - Lifetime US3759346A (en) 1970-12-31 1971-06-28 Multipurpose device for moving persons or loads over a height difference

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US (1) US3759346A (de)
JP (1) JPS543317B1 (de)
AT (1) AT330583B (de)
AU (1) AU472363B2 (de)
BE (1) BE777518A (de)
CH (1) CH526308A (de)
DD (1) DD95982A5 (de)
DE (1) DE2064761C3 (de)
FR (1) FR2120630A5 (de)
GB (1) GB1351987A (de)
SE (1) SE367322B (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598792A (en) * 1984-11-30 1986-07-08 Lew Hyok S Sky-ride vertical mobility system
US4703831A (en) * 1986-06-04 1987-11-03 Forest Safety Products, Inc. Fire escape apparatus for use in multi-story buildings and method of escape
US4730703A (en) * 1986-03-22 1988-03-15 AGIMA Innovation & Management AG. Load lowering device with a rope or cable drum
US4934660A (en) * 1987-10-02 1990-06-19 D B Industries, Inc. Device for raising and lowering loads
US5168958A (en) * 1990-10-10 1992-12-08 Rollgliss Ag Schweiz Elevating and lowering apparatus
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
WO1996037431A1 (en) * 1995-05-25 1996-11-28 Shorco Group Holdings Plc A winch assembly
US20030106742A1 (en) * 2001-12-12 2003-06-12 Nir Shechter System and method for an escapable multistory building
US6601829B2 (en) * 2000-11-27 2003-08-05 Bryan Paul Graham Pulley system with gripping block and tackle for load handling
US6869146B2 (en) * 1999-03-29 2005-03-22 Robert Gollahon Fishing pole harness
US20060207829A1 (en) * 2005-03-16 2006-09-21 Mauthner Kirk M Combination descender, pulley and force limiting rope brake
US20070221899A1 (en) * 2006-03-27 2007-09-27 Tom Braithwaite Grapple anchor
US20110174575A1 (en) * 2010-01-15 2011-07-21 Sidla James G Tank Lifeline System
US20110303484A1 (en) * 2010-06-10 2011-12-15 Stoffels Richard B Safety Apparatus for Arresting A Fall of A Worker
US20150369421A1 (en) * 2013-03-08 2015-12-24 Msa Technology, Llc Bracket and Lifting/Lowering Device Assembly
US9630034B2 (en) * 2014-02-05 2017-04-25 AHS Rescue, LLC Method and apparatus for controlled emergency descent
US20170225017A1 (en) * 2016-02-08 2017-08-10 Garlock Safety Systems Inc. Safety Apparatus for Arresting a Fall of a Worker
US20180312376A1 (en) * 2011-07-19 2018-11-01 Grid Manufacturing Corporation Hoisting and lowering device
US10195734B2 (en) * 2014-06-12 2019-02-05 Western Construction Group, Inc. Tool stabilizer and methods of assembling the same
US10370898B2 (en) * 2013-03-18 2019-08-06 Latchways Plc Tether system for a safety line
CN113525725A (zh) * 2021-05-26 2021-10-22 哈尔滨工业大学 一种着陆器工具包转移装置及转移方法
USD951073S1 (en) * 2020-01-10 2022-05-10 Livsmed Inc. Pulley for surgical instrument
USD952447S1 (en) * 2020-07-09 2022-05-24 Livsmed Inc. Pulley for surgical instrument

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2332018C2 (de) * 1973-06-23 1984-10-18 Otto 8112 Bad Kohlgrub Brda Seilführungsklotz für ein Abseilgerät
DE3032713A1 (de) * 1980-08-30 1982-04-08 Otto 8112 Bad Kohlgrub Brda Abseilgeraet
CN86106541A (zh) * 1985-10-18 1987-04-29 西部工业株式会社 逃生用器具
WO1997017107A1 (de) * 1995-11-06 1997-05-15 Rollgliss Ag Auf-/abseilgerät
DE29809056U1 (de) * 1998-05-19 1998-08-20 Dahm, Johannes, Dipl.-Ing., 53115 Bonn Vorrichtung zum Umlenken und Sichern eines Kletterseiles
FR2951952B1 (fr) * 2009-11-04 2012-01-20 Marcel Jose Peltier Dispositif de securite pour grimpeur
CN107441643B (zh) * 2017-09-25 2023-02-17 安徽理工大学 高层建筑外部救援用可旋转挂钩装置

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US362173A (en) * 1887-05-03 Fire-escape
US848235A (en) * 1905-07-03 1907-03-26 Empire Inv S Company Ltd Fire-escape.
US1212301A (en) * 1914-05-04 1917-01-16 Jacob O Wick Fire-escape.
US1351734A (en) * 1920-03-05 1920-09-07 Fred G Barrington Fire-escape
US2557483A (en) * 1949-10-26 1951-06-19 Tarasiuk Michael Life saving elevator
US2691478A (en) * 1952-02-18 1954-10-12 Frankel Jack Lifesaving device for scaffolds

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US362173A (en) * 1887-05-03 Fire-escape
US848235A (en) * 1905-07-03 1907-03-26 Empire Inv S Company Ltd Fire-escape.
US1212301A (en) * 1914-05-04 1917-01-16 Jacob O Wick Fire-escape.
US1351734A (en) * 1920-03-05 1920-09-07 Fred G Barrington Fire-escape
US2557483A (en) * 1949-10-26 1951-06-19 Tarasiuk Michael Life saving elevator
US2691478A (en) * 1952-02-18 1954-10-12 Frankel Jack Lifesaving device for scaffolds

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598792A (en) * 1984-11-30 1986-07-08 Lew Hyok S Sky-ride vertical mobility system
US4730703A (en) * 1986-03-22 1988-03-15 AGIMA Innovation & Management AG. Load lowering device with a rope or cable drum
US4703831A (en) * 1986-06-04 1987-11-03 Forest Safety Products, Inc. Fire escape apparatus for use in multi-story buildings and method of escape
WO1987007513A1 (en) * 1986-06-04 1987-12-17 Olson Industries, Inc. Fire escape apparatus for use in multy-story buildings and method of escape
US4934660A (en) * 1987-10-02 1990-06-19 D B Industries, Inc. Device for raising and lowering loads
US5168958A (en) * 1990-10-10 1992-12-08 Rollgliss Ag Schweiz Elevating and lowering apparatus
AU648588B2 (en) * 1990-10-10 1994-04-28 Rollgliss Ag Schweiz Elevating and lowering apparatus
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
US5540307A (en) * 1992-08-12 1996-07-30 Pickering; Gregory R. Rescue system
WO1996037431A1 (en) * 1995-05-25 1996-11-28 Shorco Group Holdings Plc A winch assembly
GB2304668A (en) * 1995-05-25 1997-03-26 Shorco Group Holdings Plc A winch assembly
GB2304668B (en) * 1995-05-25 1998-09-23 Shorco Group Holdings Plc A winch assembly
US6869146B2 (en) * 1999-03-29 2005-03-22 Robert Gollahon Fishing pole harness
US6601829B2 (en) * 2000-11-27 2003-08-05 Bryan Paul Graham Pulley system with gripping block and tackle for load handling
US20030106742A1 (en) * 2001-12-12 2003-06-12 Nir Shechter System and method for an escapable multistory building
US7195100B2 (en) * 2001-12-12 2007-03-27 Nir Shechter System and method for an escapable multistory building
US20060207829A1 (en) * 2005-03-16 2006-09-21 Mauthner Kirk M Combination descender, pulley and force limiting rope brake
US7658264B2 (en) 2005-03-16 2010-02-09 Kirk Martin Mauthner Combination descender, pulley and force limiting rope brake
US20070221899A1 (en) * 2006-03-27 2007-09-27 Tom Braithwaite Grapple anchor
US20110174575A1 (en) * 2010-01-15 2011-07-21 Sidla James G Tank Lifeline System
US8627923B2 (en) 2010-01-15 2014-01-14 Garlock Safety Systems Inc. Tank lifeline system
US20110303484A1 (en) * 2010-06-10 2011-12-15 Stoffels Richard B Safety Apparatus for Arresting A Fall of A Worker
US8584798B2 (en) * 2010-06-10 2013-11-19 Garlock Safety Systems Inc. Safety apparatus for arresting a fall of a worker
US20140084569A1 (en) * 2010-06-10 2014-03-27 Garlock Safety Systems Inc. Safety apparatus for arresting a fall of a worker
US11891282B2 (en) 2011-07-19 2024-02-06 Grid Manufacturing Corporation Hoisting and lowering device
US12358765B2 (en) 2011-07-19 2025-07-15 Grid Manufacturing Corporation Hoisting and lowering device
US20180312376A1 (en) * 2011-07-19 2018-11-01 Grid Manufacturing Corporation Hoisting and lowering device
US20200391985A1 (en) * 2011-07-19 2020-12-17 Grid Manufacturing Corporation Hoisting and lowering device
US11603296B2 (en) * 2011-07-19 2023-03-14 Grid Manufacturing Corporation Hoisting and lowering device
US10737919B2 (en) * 2011-07-19 2020-08-11 Grid Manufacturing Corporation Hoisting and lowering device
US20150369421A1 (en) * 2013-03-08 2015-12-24 Msa Technology, Llc Bracket and Lifting/Lowering Device Assembly
US9709214B2 (en) * 2013-03-08 2017-07-18 Msa Technology, Llc Bracket and lifting/lowering device assembly
US10370898B2 (en) * 2013-03-18 2019-08-06 Latchways Plc Tether system for a safety line
US9630034B2 (en) * 2014-02-05 2017-04-25 AHS Rescue, LLC Method and apparatus for controlled emergency descent
US10195734B2 (en) * 2014-06-12 2019-02-05 Western Construction Group, Inc. Tool stabilizer and methods of assembling the same
US10456608B2 (en) * 2016-02-08 2019-10-29 Garlock Safety Systems Inc. Safety apparatus for arresting a fall of a worker
US20170225017A1 (en) * 2016-02-08 2017-08-10 Garlock Safety Systems Inc. Safety Apparatus for Arresting a Fall of a Worker
USD951073S1 (en) * 2020-01-10 2022-05-10 Livsmed Inc. Pulley for surgical instrument
USD952447S1 (en) * 2020-07-09 2022-05-24 Livsmed Inc. Pulley for surgical instrument
CN113525725A (zh) * 2021-05-26 2021-10-22 哈尔滨工业大学 一种着陆器工具包转移装置及转移方法
CN113525725B (zh) * 2021-05-26 2022-08-30 哈尔滨工业大学 一种着陆器工具包转移装置及转移方法

Also Published As

Publication number Publication date
GB1351987A (en) 1974-05-15
AU472363B2 (en) 1976-05-20
JPS543317B1 (de) 1979-02-21
ATA1079071A (de) 1975-09-15
SE367322B (de) 1974-05-27
DE2064761C3 (de) 1974-04-18
DE2064761B2 (de) 1973-09-20
DD95982A5 (de) 1973-02-20
FR2120630A5 (de) 1972-08-18
BE777518A (fr) 1972-04-17
AU3740871A (en) 1973-06-28
AT330583B (de) 1976-07-12
DE2064761A1 (de) 1972-07-27
CH526308A (de) 1972-08-15

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