GB805398A - Improvements in or relating to transportable cranes comprising a telescopic mast - Google Patents

Improvements in or relating to transportable cranes comprising a telescopic mast

Info

Publication number
GB805398A
GB805398A GB785856A GB785856A GB805398A GB 805398 A GB805398 A GB 805398A GB 785856 A GB785856 A GB 785856A GB 785856 A GB785856 A GB 785856A GB 805398 A GB805398 A GB 805398A
Authority
GB
United Kingdom
Prior art keywords
mast
cable
winch
crane
chassis
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
GB785856A
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 GB785856A priority Critical patent/GB805398A/en
Publication of GB805398A publication Critical patent/GB805398A/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
    • B66C23/344—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes adapted for transport purposes
    • 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)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

805,398. Mobile collapsible jib cranes. PINGON, P. J. May 17, 1957 [March 13, 1956], No. 7858/56. Class 78 (4). A transportable crane comprising a telescopic mast pivoted for lowering into a horizontal position on a chassis, is characterized in that the inner and upper element of the mast is longer than the outer and lower element and is projectable through the open lower end of the outer element when the mast is in the horizontal position. As shown, in Fig. 1, the upper mast element 7 projects through the left-hand or lower end of the lower mast element 6, which is pivoted at 5 to a wheeled chassis 1, the front wheels 3 of which are provided with pneumatic tyres 4 when the crane is being towed by a vehicle 8. To erect the crane, the tyres 4 are first removed and the wheels 2 and 3 are placed on rails 24, Fig. 3. The mast element 7 is then moved until its lower end is flush with that of the element 6, using a winch 23 acting through a cable 20 anchored to a fixed trestle 21 and a cable 16 fixed at 17 and 32. The two mast elements are then locked together at 25 and the mast raised to the Fig. 3 position using the winch 23, after which the outer jib element 11 is attached and the mast fully extended, after removal of the pin 25. The jib is then raised by a cable 27, Fig. 4, and locked in position, leaving the winch 23 free, if desired, to take the hoisting cable 28. The mast may be slewable on a platform mounted on the chassis 1.
GB785856A 1956-03-13 1956-03-13 Improvements in or relating to transportable cranes comprising a telescopic mast Expired GB805398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB785856A GB805398A (en) 1956-03-13 1956-03-13 Improvements in or relating to transportable cranes comprising a telescopic mast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB785856A GB805398A (en) 1956-03-13 1956-03-13 Improvements in or relating to transportable cranes comprising a telescopic mast

Publications (1)

Publication Number Publication Date
GB805398A true GB805398A (en) 1958-12-03

Family

ID=9841149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB785856A Expired GB805398A (en) 1956-03-13 1956-03-13 Improvements in or relating to transportable cranes comprising a telescopic mast

Country Status (1)

Country Link
GB (1) GB805398A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045837A (en) * 1959-12-23 1962-07-24 Liebherr Hans Rotary tower crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045837A (en) * 1959-12-23 1962-07-24 Liebherr Hans Rotary tower crane

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