GB1273541A - Improvements relating to jib cranes - Google Patents
Improvements relating to jib cranesInfo
- Publication number
- GB1273541A GB1273541A GB2413968A GB2413968A GB1273541A GB 1273541 A GB1273541 A GB 1273541A GB 2413968 A GB2413968 A GB 2413968A GB 2413968 A GB2413968 A GB 2413968A GB 1273541 A GB1273541 A GB 1273541A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jib
- winch
- crane
- derrick
- tower
- 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
- B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
- B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
1,273,541. Erecting mobile jib cranes. W. F. VONCK. 20 May, 1969 [21 May, 1968], No. 24139/68. Heading B8B. A jib crane, Figs. 1, 3, comprises a chassis 1 with spaced super-structure support areas 3, 4, 4 constituting the turntable for the crane. In the stored position of the telescopic jib 6, 7, 8, 9, it is supported by both the areas 3, 4 with its lower end adjacent the area 3. To erect the crane the left-hand end 7A of section 7 is separated from the area 3 (which may be a counterweight) and the sections 7, 8, 9 slid through 6 to an intermediate cantilevered position, Fig. 2 (not shown), by operating telescoping winch 13. Latches (not shown) are then automatically released enabling the telescoped sections 8, 9 to be extended, after the jib is inclined to an appropriate angle about pivot 6 using derrick winch 19, by the winch 13, Fig. 3. In a second embodiment, Fig. 6 shows the first stage of erection of a tower crane, jib section 33 having been unfolded from alongside section 32. Derrick winch 42, Fig. 7A, is first operated slightly to raise the upper end 30B of the tower 30, whereafter telescoping winch 38 is operated to pull the tower foot 30A towards the turntable 4, simultaneously paying out cable into the derrick cable. During this movement rollers 45 engage guide rails 46 which guide the tower foot 30A into its operational position where it is latched against further sliding movement. The derrick winch 42 is then operated to draw the tower 30 upright against heavy springs (not shown), (which assist in collapsing the crane), where it is latched or pinned in place. The jib 31 is then turned horizontal by attaching load hook 60, Fig. 11, to the turntable 4 and simultaneously pulling in hoist cable 61 and paying out cable from the derrick winch 42, Fig. 12 (not shown). This embodiment may be used as a derricking jib crane by leaving the jib 30 latched alongside the mast 30, the combination being used as a jib.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2413968A GB1273541A (en) | 1968-05-21 | 1968-05-21 | Improvements relating to jib cranes |
DE19691925631 DE1925631A1 (en) | 1968-05-21 | 1969-05-20 | crane |
NL6907800A NL6907800A (en) | 1968-05-21 | 1969-05-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2413968A GB1273541A (en) | 1968-05-21 | 1968-05-21 | Improvements relating to jib cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1273541A true GB1273541A (en) | 1972-05-10 |
Family
ID=10207008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2413968A Expired GB1273541A (en) | 1968-05-21 | 1968-05-21 | Improvements relating to jib cranes |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1925631A1 (en) |
GB (1) | GB1273541A (en) |
NL (1) | NL6907800A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD262005A1 (en) * | 1987-07-08 | 1988-11-16 | Schwermasch Kirow Veb K | TRANSPORT SYSTEM FOR CRANES, ESPECIALLY FOR MOBILE CRANES |
CN112744664B (en) * | 2021-01-08 | 2024-04-26 | 华城(天津)建筑科技有限公司 | Self-lifting hoisting equipment, construction method and sliding locking assembly |
-
1968
- 1968-05-21 GB GB2413968A patent/GB1273541A/en not_active Expired
-
1969
- 1969-05-20 DE DE19691925631 patent/DE1925631A1/en active Pending
- 1969-05-21 NL NL6907800A patent/NL6907800A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6907800A (en) | 1969-11-25 |
DE1925631A1 (en) | 1969-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |