GB971815A - Improvements in self-erecting tower cranes - Google Patents

Improvements in self-erecting tower cranes

Info

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
Application number
GB2946962A
Inventor
Norman Edward Kerridge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stothert and Pitt Ltd
Original Assignee
Stothert and Pitt Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stothert and Pitt Ltd filed Critical Stothert and Pitt Ltd
Priority to GB2946962A priority Critical patent/GB971815A/en
Publication of GB971815A publication Critical patent/GB971815A/en
Expired legal-status Critical Current

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.
GB2946962A 1962-07-31 1962-07-31 Improvements in self-erecting tower cranes Expired GB971815A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196814A (en) * 1974-02-08 1980-04-08 E. H. Hans Liebherr Vertical telescoping lower crane

Cited By (1)

* Cited by examiner, † Cited by third party
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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