GB1218798A - Improvements in or relating to slewing jib cranes having safety apparatus - Google Patents

Improvements in or relating to slewing jib cranes having safety apparatus

Info

Publication number
GB1218798A
GB1218798A GB5228368A GB5228368A GB1218798A GB 1218798 A GB1218798 A GB 1218798A GB 5228368 A GB5228368 A GB 5228368A GB 5228368 A GB5228368 A GB 5228368A GB 1218798 A GB1218798 A GB 1218798A
Authority
GB
United Kingdom
Prior art keywords
jib
slueing
sector
qrs
prs
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
Application number
GB5228368A
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.)
Johnson & Wayne Ltd
Original Assignee
Johnson & Wayne Ltd
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 Johnson & Wayne Ltd filed Critical Johnson & Wayne Ltd
Priority to GB5228368A priority Critical patent/GB1218798A/en
Publication of GB1218798A publication Critical patent/GB1218798A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track
    • B66C15/045—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

1,218,798. Slueing jib cranes. JOHNSON & WAYNE Ltd., and H. W. SIMPSON. 3 Nov., 1969 [5 Nov., 1968], No. 52283/68. Heading B8B. A jib crane (not shown) is prevented from slueing into a predetermined sector by safety means which interrupt the operation of power slueing means and initiate the operation of braking means. Fig. 2 shows at P, Q the slueing ones of two tower cranes with working areas PRS, QRS overlapping in the cross-hatched area SR. Each crane has an infra-red transmitter and an infra-red receiver, the former transmitting only when the associated jib is outside the respective sector PRS, QRS. The arrangement is such that when one jib is in the sector PRS, QRS and the other jib is slued so as to bring it into the sector QRS, PRS its slueing power is cut off and its slueing brake applied, through a control circuit, Fig. 3 (not shown). This arrangement is suitable when the jibs are at the same height, but is unduly restrictive when one jib is higher than the other when a modified circuit, Fig. 4 (not shown), allows full slueing when the saddle of the higher crane jib covers only the area MNQ within the sector QRS. Audible warning is given by an alarm bell and the encroaching jib may be slued back out of its predetermined sector. The alarm bell sounds when the operator locks the jib against slueing so as to pass safely through the slueing section to ground where switching off the power releases the braking means and turns off the alarm, while allowing the jib to slue in the wind. Braking means may be provided by passing direct current through the stator and the rotor of an induction motor used for slueing the jib.
GB5228368A 1968-11-05 1968-11-05 Improvements in or relating to slewing jib cranes having safety apparatus Expired GB1218798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5228368A GB1218798A (en) 1968-11-05 1968-11-05 Improvements in or relating to slewing jib cranes having safety apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5228368A GB1218798A (en) 1968-11-05 1968-11-05 Improvements in or relating to slewing jib cranes having safety apparatus

Publications (1)

Publication Number Publication Date
GB1218798A true GB1218798A (en) 1971-01-13

Family

ID=10463336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5228368A Expired GB1218798A (en) 1968-11-05 1968-11-05 Improvements in or relating to slewing jib cranes having safety apparatus

Country Status (1)

Country Link
GB (1) GB1218798A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649490A1 (en) * 1975-10-30 1977-05-05 Nat Supply Uk ARTICULATED BOOM
FR2427289A1 (en) * 1978-06-02 1979-12-28 Simon Francois Monitor for tower cranes working on same site - has computers receiving load position signals to actuate alarm when collision risk occurs
FR2444638A1 (en) * 1978-12-18 1980-07-18 Bouygues Sa Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable
FR2458504A1 (en) * 1979-06-11 1981-01-02 Simon Francois Operation monitor for two adjacent cranes - prevents their collision by monitoring their geographical positions and detecting angular position of each jib
FR2494245A1 (en) * 1980-11-14 1982-05-21 Entreprises Soc Gle Collision prevention system for tower cranes - includes angular and radial position detectors providing warnings to both crane drivers when collision path is engaged
DE3148119A1 (en) * 1980-12-05 1982-07-08 Potain Poclain Matériel (P.P.M.) S.A., 71303 Montceau-les-Mines, Saône-et-Loire LIFTING ARRANGEMENT
FR2517659A1 (en) * 1981-12-08 1983-06-10 Materiel Indl Equipement Working zone delimit appts. e.g. for cantilever crane - has transducers round crane to detect position and uses electronic circuit to disengage drive according to comparator output
FR2537119A1 (en) * 1982-12-02 1984-06-08 Chantiers Modernes Sa Safety device which can be adapted to the jibs of cranes intended to clear each other.
EP0252841A1 (en) * 1986-07-09 1988-01-13 Societe De Materiel Industriel Et D'equipement Automatic control device of the retardation of the rotation of a boom and/or counter-boom of hoisting machines
FR2638440A1 (en) * 1988-11-03 1990-05-04 Grp Francais Construction Installation for assistance with driving for handling machinery such as cranes
FR2876992A1 (en) * 2004-10-27 2006-04-28 Materiel Ind Et D Equipement S Wind vane setting method for tower crane, involves effective setting of vane, by automaton of each crane, only when information sent by automatons of other cranes indicates no crane jib sweeps area swept by jib of out of use crane
CN108675145A (en) * 2018-08-03 2018-10-19 法兰泰克重工股份有限公司 Avoiding collision, device, crane and the storage medium of crane
CN110963405A (en) * 2020-01-09 2020-04-07 济南大学 Movement method for cooperative operation of three tower cranes

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649490A1 (en) * 1975-10-30 1977-05-05 Nat Supply Uk ARTICULATED BOOM
FR2427289A1 (en) * 1978-06-02 1979-12-28 Simon Francois Monitor for tower cranes working on same site - has computers receiving load position signals to actuate alarm when collision risk occurs
FR2444638A1 (en) * 1978-12-18 1980-07-18 Bouygues Sa Anti collision protection for crane jib and cable - uses radar beam transmitted from jib to motor driven rotating reflector on cable
FR2458504A1 (en) * 1979-06-11 1981-01-02 Simon Francois Operation monitor for two adjacent cranes - prevents their collision by monitoring their geographical positions and detecting angular position of each jib
FR2494245A1 (en) * 1980-11-14 1982-05-21 Entreprises Soc Gle Collision prevention system for tower cranes - includes angular and radial position detectors providing warnings to both crane drivers when collision path is engaged
DE3148119A1 (en) * 1980-12-05 1982-07-08 Potain Poclain Matériel (P.P.M.) S.A., 71303 Montceau-les-Mines, Saône-et-Loire LIFTING ARRANGEMENT
FR2517659A1 (en) * 1981-12-08 1983-06-10 Materiel Indl Equipement Working zone delimit appts. e.g. for cantilever crane - has transducers round crane to detect position and uses electronic circuit to disengage drive according to comparator output
FR2537119A1 (en) * 1982-12-02 1984-06-08 Chantiers Modernes Sa Safety device which can be adapted to the jibs of cranes intended to clear each other.
EP0252841A1 (en) * 1986-07-09 1988-01-13 Societe De Materiel Industriel Et D'equipement Automatic control device of the retardation of the rotation of a boom and/or counter-boom of hoisting machines
FR2601348A1 (en) * 1986-07-09 1988-01-15 Materiel Indl Equipement AUTOMATIC DECELERATION CONTROL DEVICE FOR THE ROTATION OF ARROWS AND / OR LIFT DEVICE COUNTERFLAPES
FR2638440A1 (en) * 1988-11-03 1990-05-04 Grp Francais Construction Installation for assistance with driving for handling machinery such as cranes
FR2876992A1 (en) * 2004-10-27 2006-04-28 Materiel Ind Et D Equipement S Wind vane setting method for tower crane, involves effective setting of vane, by automaton of each crane, only when information sent by automatons of other cranes indicates no crane jib sweeps area swept by jib of out of use crane
CN108675145A (en) * 2018-08-03 2018-10-19 法兰泰克重工股份有限公司 Avoiding collision, device, crane and the storage medium of crane
CN108675145B (en) * 2018-08-03 2023-10-10 法兰泰克重工股份有限公司 Anti-collision method and device for crane, crane and storage medium
CN110963405A (en) * 2020-01-09 2020-04-07 济南大学 Movement method for cooperative operation of three tower cranes

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