GB1339979A - Folding crane - Google Patents

Folding crane

Info

Publication number
GB1339979A
GB1339979A GB2089071A GB2089071A GB1339979A GB 1339979 A GB1339979 A GB 1339979A GB 2089071 A GB2089071 A GB 2089071A GB 2089071 A GB2089071 A GB 2089071A GB 1339979 A GB1339979 A GB 1339979A
Authority
GB
United Kingdom
Prior art keywords
boom
pivot
folding
folding crane
point
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
GB2089071A
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.)
Hopper Inc
Original Assignee
Hopper Inc
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 Hopper Inc filed Critical Hopper Inc
Publication of GB1339979A publication Critical patent/GB1339979A/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
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

1339979 Folding cranes HOPPER Inc 19 April 1971 [9 March 1970] 20890/71 Headings B8B and B8H A folding crane comprises a base 13 on which a first boom 15 is pivotally mounted and swing- able in a vertical plane by means of hydraulic rams 22, a second boom 18 connected by a pivot pin 20 to the boom 15, a hydraulic ram 26 is pivotally connected to the first and second booms 15, 18 at pivot points 27, 28 respectively for swinging the second boom 18 about its pivot pin 20. The flange on which the pivot point 28 is mounted passes between the two laterally spaced boom elements 16 of the first boom 15 on folding crane, Fig. 1 (not shown), such that point 28 lies on the other side of the line "L" which joins the pivot points 20, 27 from that shown. The second boom 18 is formed of extensible beams (32), (33), Fig. 5 (not shown), the beam (33) being extended by means of an hydraulic ram (37)
GB2089071A 1970-03-09 1971-04-19 Folding crane Expired GB1339979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1739070A 1970-03-09 1970-03-09

Publications (1)

Publication Number Publication Date
GB1339979A true GB1339979A (en) 1973-12-05

Family

ID=21782329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2089071A Expired GB1339979A (en) 1970-03-09 1971-04-19 Folding crane

Country Status (5)

Country Link
JP (1) JPS5129287B1 (en)
CA (1) CA919124A (en)
DE (1) DE2109429A1 (en)
FR (1) FR2081797B1 (en)
GB (1) GB1339979A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444639A1 (en) * 1978-12-20 1980-07-18 Potain Sa HANDLING EQUIPMENT, PARTICULARLY FOR A SELF-PROPELLED MACHINE
FR2457240A1 (en) * 1979-05-22 1980-12-19 Montgon Serge Articulated and telescopic hydraulic crane - has folding sections for high lift and long horizontal reach

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6816304A (en) * 1967-11-17 1969-05-20

Also Published As

Publication number Publication date
JPS5129287B1 (en) 1976-08-24
FR2081797B1 (en) 1975-07-04
FR2081797A1 (en) 1971-12-10
CA919124A (en) 1973-01-16
DE2109429A1 (en) 1971-11-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee