GB786961A - Improvements in or relating to balanced level-luffing jib cranes - Google Patents

Improvements in or relating to balanced level-luffing jib cranes

Info

Publication number
GB786961A
GB786961A GB28406/54A GB2840654A GB786961A GB 786961 A GB786961 A GB 786961A GB 28406/54 A GB28406/54 A GB 28406/54A GB 2840654 A GB2840654 A GB 2840654A GB 786961 A GB786961 A GB 786961A
Authority
GB
United Kingdom
Prior art keywords
jib
relating
level
luffing jib
luffing
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
GB28406/54A
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.)
CAILLARD ET CIE ETS
Original Assignee
CAILLARD ET CIE ETS
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 CAILLARD ET CIE ETS filed Critical CAILLARD ET CIE ETS
Publication of GB786961A publication Critical patent/GB786961A/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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B66C23/08—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths
    • B66C23/10—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0307—Cranes in which it is essential that the load is moving horizontally during the luffing movement of the arm or jib

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

786,961. Level-luffing jib cranes. ETABLISSEMENTS CAILLARD ET CIE. Oct. 1, 1954 [April 12, 1954], No. 28406/54. Class 78 (4). The levelling jib 4 of a level luffing crane is turned by a link 31 of constant length. In the construction illustrated, the jib is balanced by a cable connected to a weight 25 which may move in a path other than the vertical shown. Alternatively, the counterweight may be carried by a lever pivoted to the superstructure of the crane and connected to the jib by a link. The jib is luffed by a screw jack 14. Specification 3658/09, [Glass 78], is referred to.
GB28406/54A 1954-04-12 1954-10-01 Improvements in or relating to balanced level-luffing jib cranes Expired GB786961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR786961X 1954-04-12

Publications (1)

Publication Number Publication Date
GB786961A true GB786961A (en) 1957-11-27

Family

ID=9218665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28406/54A Expired GB786961A (en) 1954-04-12 1954-10-01 Improvements in or relating to balanced level-luffing jib cranes

Country Status (1)

Country Link
GB (1) GB786961A (en)

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