GB248732A - Improvements in or relating to cranes - Google Patents
Improvements in or relating to cranesInfo
- Publication number
- GB248732A GB248732A GB4828/26A GB482826A GB248732A GB 248732 A GB248732 A GB 248732A GB 4828/26 A GB4828/26 A GB 4828/26A GB 482826 A GB482826 A GB 482826A GB 248732 A GB248732 A GB 248732A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jib
- sheave
- over
- counterweight
- tail
- 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
- B66C2700/0314—Cranes in which it is essential that the load is moving horizontally during the luffing movement of the arm or jib in combination with the movement of the counterweight
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
248,732. Ardeltwerke Ges. March 7, 1925, [Convention date]. Jib cranes.-To ensure horizontal travel of the load in luffing, the load rope is led from the winding drum e over a fixed sheave d, and over a movable sheave c carried at the common pivot of links f, g, which are pivoted to the tail of the jib at i and to the stationary structure at h respectively, the sheave c being to the rear of the jib pivot in all positions of the jib. As the jib moves from b to b', the sheave c moves to c', and a suitable length of rope passes over the headsheave. The link g carries a counterweight k<1> and the tail of the jib carries a counterweight k.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE248732X | 1925-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB248732A true GB248732A (en) | 1926-10-14 |
Family
ID=5935625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4828/26A Expired GB248732A (en) | 1925-03-07 | 1926-02-19 | Improvements in or relating to cranes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB248732A (en) |
-
1926
- 1926-02-19 GB GB4828/26A patent/GB248732A/en not_active Expired
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