GB917994A - Device for extending the tower of rotary-tower cranes - Google Patents

Device for extending the tower of rotary-tower cranes

Info

Publication number
GB917994A
GB917994A GB914761A GB914761A GB917994A GB 917994 A GB917994 A GB 917994A GB 914761 A GB914761 A GB 914761A GB 914761 A GB914761 A GB 914761A GB 917994 A GB917994 A GB 917994A
Authority
GB
United Kingdom
Prior art keywords
tower
arms
cranes
rotary
extending
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
GB914761A
Inventor
Herbert Biedermann
Hans Tax
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 GB914761A priority Critical patent/GB917994A/en
Publication of GB917994A publication Critical patent/GB917994A/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

917,994. Erecting tower cranes. TAX, H. March 13, 1961, No. 9147/61. Class 78 (4). In order that additional sections 8 may be added to the bottom of the tower of a rotatable tower-crane the tower is raised by arms 6 pivoted to the tower at 7 and to a base 3 at 5. As described, the arms are pivoted on an upright frame 4 which is pivotally attached to the base at 9 to permit the erection of the unextended crane. The arms 6 may be operated by hoisting tackle or an hydraulic ram.
GB914761A 1961-03-13 1961-03-13 Device for extending the tower of rotary-tower cranes Expired GB917994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB914761A GB917994A (en) 1961-03-13 1961-03-13 Device for extending the tower of rotary-tower cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB914761A GB917994A (en) 1961-03-13 1961-03-13 Device for extending the tower of rotary-tower cranes

Publications (1)

Publication Number Publication Date
GB917994A true GB917994A (en) 1963-02-13

Family

ID=9866289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB914761A Expired GB917994A (en) 1961-03-13 1961-03-13 Device for extending the tower of rotary-tower cranes

Country Status (1)

Country Link
GB (1) GB917994A (en)

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