GB971815A - Improvements in self-erecting tower cranes - Google Patents
Improvements in self-erecting tower cranesInfo
- Publication number
- GB971815A GB971815A GB2946962A GB2946962A GB971815A GB 971815 A GB971815 A GB 971815A GB 2946962 A GB2946962 A GB 2946962A GB 2946962 A GB2946962 A GB 2946962A GB 971815 A GB971815 A GB 971815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- self
- tower
- section
- july
- vertical position
- 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
- B66C23/28—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 constructed to operate at successively higher levels
- B66C23/283—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 constructed to operate at successively higher levels with frameworks composed of assembled elements
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
971,815. Self-erecting tower-cranes. STOTHERT & PITT Ltd. July 30, 1963 [July 31, 1962], No. 29469/62. Heading B8B. A bar 14, Fig. 2, is temporarily attached to a half-section of outer tower of a crane so that when the half-section is raised by the crane hook and a sling, Fig. 1, the bar engages pivoted hooks 16 on the inner tower and can swing down under its own weight into a vertical position in which it is bolted to the existing top section of the outer tower. Guides 38, Fig. 2, on the rod 14 co-operate with the hooks 16. Each hook is a bell-crank and is pivoted in a saddle block 34, Fig. 4, by a screw and nut so that its vertical position may be adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2946962A GB971815A (en) | 1962-07-31 | 1962-07-31 | Improvements in self-erecting tower cranes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2946962A GB971815A (en) | 1962-07-31 | 1962-07-31 | Improvements in self-erecting tower cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB971815A true GB971815A (en) | 1964-10-07 |
Family
ID=10292052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2946962A Expired GB971815A (en) | 1962-07-31 | 1962-07-31 | Improvements in self-erecting tower cranes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB971815A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196814A (en) * | 1974-02-08 | 1980-04-08 | E. H. Hans Liebherr | Vertical telescoping lower crane |
-
1962
- 1962-07-31 GB GB2946962A patent/GB971815A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196814A (en) * | 1974-02-08 | 1980-04-08 | E. H. Hans Liebherr | Vertical telescoping lower crane |
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