GB202741A - Improvements in or relating to cranes - Google Patents
Improvements in or relating to cranesInfo
- Publication number
- GB202741A GB202741A GB1489322A GB1489322A GB202741A GB 202741 A GB202741 A GB 202741A GB 1489322 A GB1489322 A GB 1489322A GB 1489322 A GB1489322 A GB 1489322A GB 202741 A GB202741 A GB 202741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheave
- jib
- head
- rope
- cranes
- 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
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
202,741. Griffiths, E., and Armstrong, Whitworth, & Co., Ltd., Sir W. G. May 26,1922. Jib cranes.-To obtain approximately horizontal travel of the load in lufting, the load-rope E passes over the jib-head sheave A, a sheave B suitably located on the crane structure, a sheave C on a link D pivoted to the jib-head, a second sheave B, and to the hoisting drum F. There may be more than one sheave at C and more than two at B. The rope E may be led through a fall-block and secured to the jib-head or reeved again over the sheaves at A, B. C. An additional sheave may be provided on the link D for a luffing rope.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1489322A GB202741A (en) | 1922-05-26 | 1922-05-26 | Improvements in or relating to cranes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1489322A GB202741A (en) | 1922-05-26 | 1922-05-26 | Improvements in or relating to cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB202741A true GB202741A (en) | 1923-08-27 |
Family
ID=10049386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1489322A Expired GB202741A (en) | 1922-05-26 | 1922-05-26 | Improvements in or relating to cranes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB202741A (en) |
-
1922
- 1922-05-26 GB GB1489322A patent/GB202741A/en not_active Expired
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