GB360218A - Improvements relating to cranes - Google Patents
Improvements relating to cranesInfo
- Publication number
- GB360218A GB360218A GB3549930A GB3549930A GB360218A GB 360218 A GB360218 A GB 360218A GB 3549930 A GB3549930 A GB 3549930A GB 3549930 A GB3549930 A GB 3549930A GB 360218 A GB360218 A GB 360218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jib
- arms
- luffing
- shock absorbing
- 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
360,218. Jib cranes. ARROL & CO., Ltd., SIR W. and SHEPHERD, R. G., 92, Rigby Street, Parkhead, Glasgow. Nov. 25, 1930, No. 35499. [Class 78 (iv).] In a level luffing jib crane having its jib foot mounted above the turntable on a frame so as to enable balancing means for the jib to move in an arc about the jib foot pin axis, balance arms g, g<1>, having balance weights g<4>, g<5>, are mounted on the jib foot pin a and are disposed one on each side of the jib and attached thereto at g<2>, g<3>, by shock absorbing springs i<1>. The jib is luffed by one or more rods h<1>, each rod being actuated by a crank h and connected at g<6> to the arms g, g<1>, by shock absorbing springs i. To maintain the load at a constant level during luffing the hoisting rope is passed over compensating sheaves c, c<1>, f, f<1>. In a modification, Fig. 3, the connecting rod C of the luffing mechanism is connected to the arms g, g<1>, by an arm j.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3549930A GB360218A (en) | 1930-11-25 | 1930-11-25 | Improvements relating to cranes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3549930A GB360218A (en) | 1930-11-25 | 1930-11-25 | Improvements relating to cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB360218A true GB360218A (en) | 1931-11-05 |
Family
ID=10378432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3549930A Expired GB360218A (en) | 1930-11-25 | 1930-11-25 | Improvements relating to cranes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB360218A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3340907A (en) * | 1964-01-20 | 1967-09-12 | Fmc Corp | Fluid transferring arm |
-
1930
- 1930-11-25 GB GB3549930A patent/GB360218A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3340907A (en) * | 1964-01-20 | 1967-09-12 | Fmc Corp | Fluid transferring arm |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2408500A (en) | Automatic counterbalance for boom derricks | |
GB360218A (en) | Improvements relating to cranes | |
GB262317A (en) | Improvements in and relating to jib cranes | |
GB221183A (en) | Improvements in balancing supports for lighting apparatus and various purposes | |
GB306223A (en) | Improvements in luffing jib cranes | |
GB315584A (en) | Improvements in or relating to luffing jib cranes | |
GB185443A (en) | Improvements in or connected with cranes or like goods raising and lowering apparatus | |
SU948855A1 (en) | Tower crane | |
SU89248A1 (en) | Device with a movable counterweight for jib cranes | |
GB309262A (en) | Improvements in and relating to jib cranes | |
SU95625A1 (en) | Construction crane | |
GB237764A (en) | Improvements in cranes | |
GB291590A (en) | Improvements relating to cranes | |
GB655950A (en) | Improvements in or relating to jib cranes | |
SU100936A1 (en) | Mechanism for changing the overhang of the portal crane with articulated boom | |
GB786597A (en) | Improvements in or relating to crane-boom suspensions | |
GB387888A (en) | An improved jib-crane with adjustable counterweight | |
SU674839A1 (en) | Machine tool overload-preventing safety arrangement | |
GB423703A (en) | Improvements in and relating to cranes | |
GB246647A (en) | Improvements in jib cranes | |
SU586098A1 (en) | Articulated jib of a bridge crane | |
GB588260A (en) | Improvements in or relating to jib cranes | |
GB245477A (en) | Improvements in cranes | |
GB287886A (en) | ||
GB305923A (en) | Improvements in or applicable to jib-cranes |