GB618793A - Improvements in or relating to mobile cranes - Google Patents
Improvements in or relating to mobile cranesInfo
- Publication number
- GB618793A GB618793A GB3100846A GB3100846A GB618793A GB 618793 A GB618793 A GB 618793A GB 3100846 A GB3100846 A GB 3100846A GB 3100846 A GB3100846 A GB 3100846A GB 618793 A GB618793 A GB 618793A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jib
- pivotally mounted
- vehicle
- load
- loadsupporting
- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating 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
- B66C2700/0321—Travelling cranes
- B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
618,793. Excavating earth. TAYLOR & SONS (MANCHESTER), Ltd., F., and TAYLOR, W. Oct. 18, 1946, No. 31008. [Class 68 (i)] [Also in Group XXX] In a load handling device of the kind comprising a jib pivotally mounted at one end on a vehicle and carrying a load at its other end, the jib is formed in two parts, one part being pivotally mounted on the vehicle and the second or loadsupporting part being pivotally mounted on the free end of the first part, the means for raising the jib acting on the first part and the load-supporting part being so controlled that it automatically pivots about the first part as the latter is raised or lowered, whereby its loadsupporting end can be brought down to or below the level of the vehicle. In the embodiment shown, the rear part A<SP>2</SP> of the jib is pivoted at b on a balance box B on a vehicle C and the load-supporting part A<SP>1</SP> is pivotally mounted at a on the part A<SP>2</SP> and connected to a pivot b2 on the box B by a rod E connected to a crank lever D bolted to the part A<SP>1</SP>. The jib is raised by one or more rams C<SP>1</SP> acting on a secondary jib A pivotally mounted at b<SP>1</SP> and haying a roller a<SP>1</SP> engaging a surface a<SP>2</SP> on the part A<SP>2</SP> of the main jib. During this movement, the part A<SP>1</SP> is pivoted about a through the rod E until the parts A<SP>1</SP>, A<SP>2</SP> are substantially in alignment. When the main jib is lowered, the part A<SP>1</SP> pivots about the part A<SP>2</SP> so that when the latter has reached its lowest position, the free end of the part A<SP>1</SP> is level with the ground or in a trench below the ground. In this lower position, the device may be used as an excavator or bulldozer by attaching a suitable implement to the end of part A<SP>1</SP>, the latter being tapered to receive a socket on the implement. Specification 598,408, [Group XXX], is referred to in the Provisional Specification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3100846A GB618793A (en) | 1946-10-18 | 1946-10-18 | Improvements in or relating to mobile cranes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3100846A GB618793A (en) | 1946-10-18 | 1946-10-18 | Improvements in or relating to mobile cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB618793A true GB618793A (en) | 1949-02-28 |
Family
ID=10316536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3100846A Expired GB618793A (en) | 1946-10-18 | 1946-10-18 | Improvements in or relating to mobile cranes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB618793A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203123B (en) * | 1987-04-04 | 1990-12-12 | Aerial Access Equip | Personnel access lift. |
-
1946
- 1946-10-18 GB GB3100846A patent/GB618793A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203123B (en) * | 1987-04-04 | 1990-12-12 | Aerial Access Equip | Personnel access lift. |
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