US3865422A - Lifting devices - Google Patents

Lifting devices Download PDF

Info

Publication number
US3865422A
US3865422A US468295A US46829574A US3865422A US 3865422 A US3865422 A US 3865422A US 468295 A US468295 A US 468295A US 46829574 A US46829574 A US 46829574A US 3865422 A US3865422 A US 3865422A
Authority
US
United States
Prior art keywords
members
lugs
carriage
lifting
lug
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
US468295A
Other languages
English (en)
Inventor
Jean-Francois Archer
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3865422A publication Critical patent/US3865422A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks

Definitions

  • a lifting device comprlses a lifting beam formed by two opposed members, for example 1 or U-section.
  • Us Cl 294/81 R 294/85 Self-locking carriages are movable along the beam in- [511 In Cl 3 1/00 ternally thereof and include lugs engageable with [58] Fie'ld 67 AA upper and lower flanges of the members.
  • a shaft car- R BB 212/1 ried by each carriage is engaged by a beam suspension member or a load supporting hook, and the load ap- [56] References Cited plied to the carriage via the shaft urges the lugs into UNITED STATES PATENTS locking engagement with the flanges. 2,961,269 11/1960 Renfroe 294/85 5 Claims, 4 Drawing Figures PATEMED FEB] 1 I975 SHEET 1 OF 3 PATENTEB FEB] 1 1975 SHEEI 30F 3 IIIIIIIIIII/ ⁇ llll LIFTING DEVICES BACKGROUND OF THE INVENTION 1. Field of the Invention.
  • the present invention relates to lifting devices.
  • Lifting devices have been proposed in the form of a lifting beam with self-locking carriages movable along the beam. Each of these carriages carries an element arranged to be connected to a suspension hook. These carriages are relatively complicated and do not operate very reliably.
  • a-lifting beam comprising two sectioned members, each said member having an upper flange, a lower flange, and a web, the two members being arranged with their webs in spaced parallel relation, and at least two self-locking carriages movable along the beam between the webs of said members, each carriage including means defining a cavity open to the outside, shaft means engaged in said cavity, and lug means bearing against the upper and lower flanges of the members.
  • a lifting beam comprising two sectioned members, each said member having an upper flange, a lower flange, and a web, the two members being arranged with their webs in spaced parallel relation, at least two self-locking carriages movable along the beam between the webs of said members, each carriage including means defining a cavity, shaft means engaged in said cavity, and lug means bearing against the upper and lower flanges of the members, said shaft means being arranged to carry a load applied by means extending between said members whereby said load urges the lug means into locking engagement with the flanges.
  • FIG. 1 is a fragmentary side elevation, partially in section, of a first embodiment of a lifting device in accordance with the present invention
  • FIG. 2 is a section taken on line II-II of FIG. 1;
  • FIG. 3 is a fragmentary side elevation partially in section of a second embodiment of the device.
  • FIG. 4 is a fragmentary side elevation of a modified form of the device shown in FIG. 3.
  • the lifting device-shown in FIGS. 1 and 2 comprises a lifting beam formed by two generally U-section members 1 and 2 so arranged that their central parts or webs la and 2a are on the outside of the beam; in an alternative arrangement, the Webs la and 2a can be arranged on the inside of the beam.
  • the opposed limbs of a suspension loop 3 extend through openings 4 provided in a flat longitudinal plate 5 which is welded to the underside of the upper flanges lb and 2b of the members 1 and 2.
  • Each of the limbs of the loop 3 is provided at its bottom end with an opening through which a transverse flat plate 7 extends; this plate bears against the underside of the flat plate 5. Because of this arrangement, the flanges lb and 2b are not in contact, and the members 1 and 2 can be spaced by a sufficient distance from one another to permit the use of rotating hooks 8, whilst their webs 1a and 2a remain parallel.
  • Each of the hooks 8 is rigid with a looped nut 9 which is supported on a shaft 10 carried by a self-locking carriage movable inside the lifting beam.
  • This carriage consists of two plates 11, disposed in the vicinity of the webs 1a and 2a the members 1 and 2, and connected to one another by a transverse member 12.
  • Each of the plates 11 has an opening 13 which receives the shaft 10, and each plate is reinforced by a sectioned member 14 level with the opening 13.
  • each of the plates 11 comprises an upper lug 11a and a lower lug llb, which are spaced by a distance which is greater than the distance separating the upper and lower flanges of the members 1 and 2.
  • the lower lug 11b is arranged between the upper lug 11a and the opening 13.
  • the lifting beam is formed from two l-section members.
  • the loop 3 is secured to the lifting beam by means of self-locking carriages which are similar to those described above and which are designated by the reference 15 in FIG. 3.
  • each limb of the loop 3 is connected to one of the carriages by a shaft 16 which extends through the holes 13 of the carriage and a hole provided at the bottom of the limb.
  • the carriages 15 do, however, differ from those shown in FIG. 1 in that the upper lugs 15a are arranged between the lower lugs 15b and the holes 13, when viewed in side elevation.
  • the loop 3 can be freely displaced along the beam so as to locate it in a position such that a subsequent load will be balanced.
  • the loop 3 is replaced by a sling 17 having a loop 18 at each end; each shaft 16 extends through a respective one of the loops 18.
  • the carriages are of relatively simple construction.
  • a lifting beam comprising two sectioned members, each said member having an upper flange,
  • each carriage including means defining a cavity open to the outside
  • each said carriage comprises two plates
  • transverse member connecting the plates, each plate lying adjacent a web of a respective said member and carrying a first lug bearing against the upper flange of the member, and k a second lug bearing against the lower flange of the member.
  • a device further comprising lifting hooks, each hook being carried by the shaft means of a respective carriage, in each said carriage the first lugs and the shaft means being arranged at respective sides of the second lugs whereby a load carried by the hook pivots the carriage on the second lugs to urge the first lugs against the upper flanges.
  • a device further comprising suspension means for suspending the beam, said suspension means being connected to' the shaft means of the carriages, in each said carriage the second lugs and the shaft means being arranged at respective sides of the first lugs whereby the load in said suspension means pivots the carriage on the first lugs to urge the second lugs against the lower flanges,
  • a lifting beam comprising two sectioned members, each said member having an upper flange,
  • each carriage including means defining a cavity
  • lug means bearing against the upper and lower flanges of the members, said shaft means being arranged to carry a load applied by means extending between said members whereby said load urges the lug means into locking engagement with the flanges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
US468295A 1973-05-10 1974-05-08 Lifting devices Expired - Lifetime US3865422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7317431A FR2228707B2 (it) 1973-05-10 1973-05-10

Publications (1)

Publication Number Publication Date
US3865422A true US3865422A (en) 1975-02-11

Family

ID=9119316

Family Applications (1)

Application Number Title Priority Date Filing Date
US468295A Expired - Lifetime US3865422A (en) 1973-05-10 1974-05-08 Lifting devices

Country Status (7)

Country Link
US (1) US3865422A (it)
BE (1) BE814334A (it)
DE (1) DE2421184A1 (it)
ES (1) ES426152A1 (it)
FR (1) FR2228707B2 (it)
GB (1) GB1434476A (it)
IT (1) IT1014148B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108384A (en) * 1975-11-27 1978-08-22 Spribag Aktiengesellschaft Centrifugal slinging apparatus for hot repair of electric furnaces, ladles or the like
US4326744A (en) * 1979-03-07 1982-04-27 Kennecott Corporation Work hook device
FR2752256A1 (fr) * 1996-08-12 1998-02-13 Msu Materiel De Securite Urbai Palonnier de levage pour batardeau ou analogue
US7478852B1 (en) 2003-03-28 2009-01-20 Durden P Trentis Lifting beam
US20090273200A1 (en) * 2006-11-01 2009-11-05 Grizzle Roger D Cargo spreader bar

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541258A1 (fr) * 1983-02-22 1984-08-24 Simon Francois Palonnier pour engin de levage et de manutention
CN105502152A (zh) * 2015-12-14 2016-04-20 安徽威能电机有限公司 电机机座的吊具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961269A (en) * 1957-08-21 1960-11-22 Renfroe Charles Joseph Beam clamp
US3314711A (en) * 1965-06-04 1967-04-18 Engineered Models Corp Lifting and handling apparatus
US3343861A (en) * 1965-12-10 1967-09-26 United States Steel Corp Lifting grapple for reels and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961269A (en) * 1957-08-21 1960-11-22 Renfroe Charles Joseph Beam clamp
US3314711A (en) * 1965-06-04 1967-04-18 Engineered Models Corp Lifting and handling apparatus
US3343861A (en) * 1965-12-10 1967-09-26 United States Steel Corp Lifting grapple for reels and the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108384A (en) * 1975-11-27 1978-08-22 Spribag Aktiengesellschaft Centrifugal slinging apparatus for hot repair of electric furnaces, ladles or the like
US4326744A (en) * 1979-03-07 1982-04-27 Kennecott Corporation Work hook device
FR2752256A1 (fr) * 1996-08-12 1998-02-13 Msu Materiel De Securite Urbai Palonnier de levage pour batardeau ou analogue
US7478852B1 (en) 2003-03-28 2009-01-20 Durden P Trentis Lifting beam
US20090273200A1 (en) * 2006-11-01 2009-11-05 Grizzle Roger D Cargo spreader bar
US7988214B2 (en) 2006-11-01 2011-08-02 Grizzle Roger D Cargo spreader bar

Also Published As

Publication number Publication date
ES426152A1 (es) 1976-07-01
IT1014148B (it) 1977-04-20
GB1434476A (en) 1976-05-05
DE2421184A1 (de) 1974-11-21
FR2228707A2 (it) 1974-12-06
FR2228707B2 (it) 1977-07-29
BE814334A (fr) 1974-08-16

Similar Documents

Publication Publication Date Title
US3602544A (en) Universal,heavy-duty sling
US3865422A (en) Lifting devices
US3536351A (en) Apparatus for simultaneously lifting and spacing cargo containers
US3502364A (en) Hoist sling with tubular frame
US2497379A (en) Crane arrangement for wrecking trucks
US3897097A (en) Flying fork-type lifting member
EP0207418B1 (en) Lifting device
GB1353263A (en) Gantry crane reeving system
US3561810A (en) Lifting beam assembly
US3837697A (en) Adjustable multi-leg load-carrying sling apparatus
US4251099A (en) Automatic release device for lifting slings
CN203173756U (zh) 叉车式360度全回转升降伸缩抓斗装卸机
US2734717A (en) campbell
GB1453986A (en) Block loader
US2996310A (en) Missile transfer dolly
US3561809A (en) High torque cargo hook
GB2097052A (en) Releaseable attachment or fastening device
CN112830377B (zh) 适于多工况的随载运输专用吊具
CN113443545A (zh) 一种轨道梁吊具
RU198812U1 (ru) Устройство для транспортировки и подвески груза на летательный аппарат
SU954354A1 (ru) Грузозахватна траверса
CN217376991U (zh) 搬运装置
RU2057056C1 (ru) Грузозахватная траверса
SU1293095A1 (ru) Траверса дл подъема изделий со смещенным центром масс
SU484160A1 (ru) Грузозахватное устройство