GB1291703A - Improvements relating to folding tower-type cranes - Google Patents

Improvements relating to folding tower-type cranes

Info

Publication number
GB1291703A
GB1291703A GB5511568A GB5511568A GB1291703A GB 1291703 A GB1291703 A GB 1291703A GB 5511568 A GB5511568 A GB 5511568A GB 5511568 A GB5511568 A GB 5511568A GB 1291703 A GB1291703 A GB 1291703A
Authority
GB
United Kingdom
Prior art keywords
tower
jib
folding
anchorage
stay
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
GB5511568A
Inventor
Willem Frederik Vonck
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5511568A priority Critical patent/GB1291703A/en
Priority to DE19691957714 priority patent/DE1957714A1/en
Priority to NL6917511A priority patent/NL6917511A/xx
Priority to FR6939935A priority patent/FR2023732A1/fr
Publication of GB1291703A publication Critical patent/GB1291703A/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
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

1291703 Folding tower cranes W F VONCK 14 Nov 1969 [20 Nov 1968] 55115/68 Heading B8B A mobile folding tower crane is shown in the transport condition in Fig. 1 with its tower 10 horizontal and its folding jib 11 along the top of the tower 10. The jib 11 is unfolded and locked and the foot 10A of the tower 10 drawn to the right, as shown in Fig. 3, so that it is cantilevered away from a back-stay anchorage 20 and supported by a back-stay cable 13A, 13B, 13C, 13D, the movement lifting the jib 11. The tower 10 is now erected against the force of heavy springs (not shown), the outer end of the jib sliding over an A-frame 12 and resting on the ground, Fig. 4, at the end of this stage. Turntable E is now operated to move the backstay anchorage 180 degrees, with the jib 11 stationary, which operation is permitted by a universal-joint connection 16 at the top of the tower 10. The jib 11 may then be raised to its operating position, Fig. 6. The tower 10 may be telescopic and the relative rotation between the back-stay anchorage 20 and the jib 11 permitted by a bearing at the base of the tower 10.
GB5511568A 1968-11-20 1968-11-20 Improvements relating to folding tower-type cranes Expired GB1291703A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5511568A GB1291703A (en) 1968-11-20 1968-11-20 Improvements relating to folding tower-type cranes
DE19691957714 DE1957714A1 (en) 1968-11-20 1969-11-17 Umlegarer tower crane
NL6917511A NL6917511A (en) 1968-11-20 1969-11-20
FR6939935A FR2023732A1 (en) 1968-11-20 1969-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5511568A GB1291703A (en) 1968-11-20 1968-11-20 Improvements relating to folding tower-type cranes

Publications (1)

Publication Number Publication Date
GB1291703A true GB1291703A (en) 1972-10-04

Family

ID=10473001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5511568A Expired GB1291703A (en) 1968-11-20 1968-11-20 Improvements relating to folding tower-type cranes

Country Status (4)

Country Link
DE (1) DE1957714A1 (en)
FR (1) FR2023732A1 (en)
GB (1) GB1291703A (en)
NL (1) NL6917511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030174A (en) * 2014-05-12 2014-09-10 江苏大通重工有限公司 Foldable tower cap of miniature tower-type hoisting machinery

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1073562B (en) * 1976-03-19 1985-04-17 Fmc Corp IMPROVEMENT IN TOWER CRANES
CN107117542A (en) * 2017-06-30 2017-09-01 徐州重型机械有限公司 Crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030174A (en) * 2014-05-12 2014-09-10 江苏大通重工有限公司 Foldable tower cap of miniature tower-type hoisting machinery

Also Published As

Publication number Publication date
DE1957714A1 (en) 1970-06-04
NL6917511A (en) 1970-05-22
FR2023732A1 (en) 1970-08-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees