US3142507A - Lifting device for piece material - Google Patents

Lifting device for piece material Download PDF

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Publication number
US3142507A
US3142507A US165485A US16548562A US3142507A US 3142507 A US3142507 A US 3142507A US 165485 A US165485 A US 165485A US 16548562 A US16548562 A US 16548562A US 3142507 A US3142507 A US 3142507A
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US
United States
Prior art keywords
net
mutually parallel
transverse axis
side portions
elements
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
US165485A
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English (en)
Inventor
Nilsson Karl Erik
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Individual
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Individual
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Filing date
Publication date
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Publication of US3142507A publication Critical patent/US3142507A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B66C1/127—Nets

Definitions

  • the lifting device according to this invention has for its main object to facilitate removal of stones from narrow trenches, pits and like excavations in the ground, but is also very suitable for loading large and heavy stones on vehicles.
  • the outstanding feature of the device according to the invention is that it consists of a number of chains, which are fixedly interconnected so as to form a net bag, the confining edge of which is an endless chain and which, when placed on a fairly plane and horizontal base forms a mat on which the piece material can be placed without being lifted, the net bag enclosing and automatically centering the material when being hoisted, so that the material cannot fall out unintentionally.
  • the endless chain forms loops at least at two opposite end portions of the net bag, which loops are not fastened to the chain net and constitute connection means for a hoisting means, such as a crane hook.
  • a further feature of the lifting device is the provision of a permanently fixed or detachable support adapted to space the loops from each other in order to facilitate loading of the material when the net bag is hanging, for instance carried by a crane hook or the like.
  • FIG. 1 is a plane view of the device
  • FIG. 2 is a perspective view of the device when lifting piece material
  • FIG. 3 shows in perspective the upper portion of the device provided with a support for spacing the end portions of the device.
  • the numeral 1 designates the endless chain, which forms, at two end portions of the net bag, connection means in the form of loops 1', 1" for a hoisting means such as a crane hook 2.
  • the ends of a number of substantially parallely extending chains 3, 3 are linked to the endless chain 1.
  • the lifting device When the lifting device is used for lifting a load, consisting for instance of stones 5, 5', the latter can be rolled in place on the device after this has been laid out flat like a mat. Then the end portions 1', 1" of the net bag, i.e. the loops, can be hooked on to the crane hook 2.
  • the hoisting begins, the net gradually forms into a net bag which encloses the stones 5, 5 so that the latter cannot fall out.
  • the load is automatically centered in the bag and the hoisting from narrow trenches or pits thus facilitated.
  • the latter can simply be lowered towards an horizontal base and the stones be unrolled from it.
  • the lifting device according to the invention is made of chains only, the homogenity of its strength will remain unchanged for a very long time, and damage done to it will be very easy to discover in good time.
  • the lifting device can be provided with a support, for instance in the form of a cross consisting of interconnected bars 6, 6' of steel or the like, the ends of which are bent into books 7, 7 adapted to carry the end portions or loops 1, 1 of the net bag.
  • the bars 6, 6' are provided in the crossing point with a hook 8 in which a hoisting means such as a crane hook, loop or the like can be inserted.
  • the support may also be permanently connected to one end portion of the net bag so that the latter and the support form a unit.
  • the net bag may be made larger or smaller as required, the chains being dimensioned correspondingly.
  • the hooks 7, '7' may have such a shape that the end portions of the net bag, i.e. the loops 1', 1 can slide in the hooks when the bag is loaded, so that bag and load are automatically centered in the support.
  • the hook 8 of the support may be replaced by a fixed ring or the like.
  • a hoist net for forming a bag-like container for handling loose stones and the like comprising a onepiece, elongated chain link member having a central transverse axis and a central longitudinal axis, a continuous marginal element including opposed side portions converging toward each other on each side of the central transverse axis of said hoist net when said net is in a planar condition and is drawn taut by pressure applied at the points of intersection with the transverse axis and at the terminal ends of the opposed side portions on each side of the transverse axis, said marginal element having mutually parallel, transverse loop-forming end elements each formed from a plurality of chain links, one of said end elements extending between said converging side portions on each side of said transverse axis, a plurality of mutually parallel elements each comprising a plurality of chain links for conforming to an irregular surface aong its length, said mutually parallel elements extending transversely between the opposed side portions of said net and terminally secured to said side portions, said mutually parallel elements adjacent said central transverse
  • link elements adjacent the transverse axis of said hoist net are of a length greater than the distance between adjacent mutually parallel elements to which they are terminally connected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US165485A 1961-01-19 1962-01-11 Lifting device for piece material Expired - Lifetime US3142507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE50661 1961-01-19

Publications (1)

Publication Number Publication Date
US3142507A true US3142507A (en) 1964-07-28

Family

ID=20256673

Family Applications (1)

Application Number Title Priority Date Filing Date
US165485A Expired - Lifetime US3142507A (en) 1961-01-19 1962-01-11 Lifting device for piece material

Country Status (4)

Country Link
US (1) US3142507A (de)
CH (1) CH414984A (de)
DE (2) DE1851339U (de)
GB (1) GB927148A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360293A (en) * 1966-03-16 1967-12-26 Liftex Slings Inc Metal web sling
US3912319A (en) * 1971-09-13 1975-10-14 Speedcranes Ltd Apparatus for raising floating bodies
US4043538A (en) * 1976-04-16 1977-08-23 Columbus Mckinnon Corporation Chain hoist
WO2000017085A1 (en) * 1998-09-24 2000-03-30 Kenneth Dempsey Lifting sling system having multiple strap components
CN103626038A (zh) * 2013-11-11 2014-03-12 北京卫星环境工程研究所 适用于柔性货包的提升/转运装置
USD923279S1 (en) 2019-12-04 2021-06-22 John H. Ellis Crash barrel lifting basket

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907683A1 (de) * 1979-02-27 1980-09-04 Rud Ketten Rieger & Dietz Verzurrnetz zur sicherung von lasten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US926242A (en) * 1908-09-02 1909-06-29 John Bernard Clark Method of handling slag, cinder, &c.
US1118519A (en) * 1913-09-04 1914-11-24 Charles G Weaver Wood-carrier.
US2556386A (en) * 1949-07-08 1951-06-12 Charles F Aydelott Baled hay lifter
US2696317A (en) * 1952-08-29 1954-12-07 Roger L Toffolon Fork truck lifting attachment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868658C (de) * 1951-02-14 1953-02-26 Tech Handelsonderneming Almeta Lade- und Fangnetz
BE558807A (de) * 1956-06-29

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US926242A (en) * 1908-09-02 1909-06-29 John Bernard Clark Method of handling slag, cinder, &c.
US1118519A (en) * 1913-09-04 1914-11-24 Charles G Weaver Wood-carrier.
US2556386A (en) * 1949-07-08 1951-06-12 Charles F Aydelott Baled hay lifter
US2696317A (en) * 1952-08-29 1954-12-07 Roger L Toffolon Fork truck lifting attachment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360293A (en) * 1966-03-16 1967-12-26 Liftex Slings Inc Metal web sling
US3912319A (en) * 1971-09-13 1975-10-14 Speedcranes Ltd Apparatus for raising floating bodies
US4043538A (en) * 1976-04-16 1977-08-23 Columbus Mckinnon Corporation Chain hoist
WO2000017085A1 (en) * 1998-09-24 2000-03-30 Kenneth Dempsey Lifting sling system having multiple strap components
CN103626038A (zh) * 2013-11-11 2014-03-12 北京卫星环境工程研究所 适用于柔性货包的提升/转运装置
USD923279S1 (en) 2019-12-04 2021-06-22 John H. Ellis Crash barrel lifting basket

Also Published As

Publication number Publication date
DE1851339U (de) 1962-05-10
CH414984A (de) 1966-06-15
GB927148A (en) 1963-05-29
DE1212699B (de) 1966-03-17

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