GB1167232A - Improvements in or relating to Arrangements for Making Straight-Line Horizontal Movements - Google Patents

Improvements in or relating to Arrangements for Making Straight-Line Horizontal Movements

Info

Publication number
GB1167232A
GB1167232A GB28467A GB28467A GB1167232A GB 1167232 A GB1167232 A GB 1167232A GB 28467 A GB28467 A GB 28467A GB 28467 A GB28467 A GB 28467A GB 1167232 A GB1167232 A GB 1167232A
Authority
GB
United Kingdom
Prior art keywords
arrangements
rams
jib
relating
horizontal movements
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
GB28467A
Inventor
Tore Berg
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 GB28467A priority Critical patent/GB1167232A/en
Publication of GB1167232A publication Critical patent/GB1167232A/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
    • B66C23/348—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes the erection being operated by jacks
    • 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
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)

Abstract

1,167,232. Level luffing jibs for cranes. T. BERG. 3 Jan., 1967, No. 284/67. Heading B8B. [Also in Divi on E1] A level-luffing jib for a crane comprises two portions 3, 4 of equal length pivoted together at 2 and pivoted to the main body of the crane at 1. When the jib is luffed by a ram 5, which acts between pivots 16, 12, it is folded or unfolded by similar rams 6, 7, acting between pivots 13, 15 and 14 in such a manner that the tip 11 of the jib moves along a horizontal path. The stroke volume of the ram 5 is twice that of the rams 6, 7. A pump 8 supplies pressure fluid to the rams through a distributer 9. Distances A, B, C, D, H are all equal but other arrangements are possible. The point 16 may be below the point 1 if other than horizontal movement is required, or, the points may be coincident.
GB28467A 1967-01-03 1967-01-03 Improvements in or relating to Arrangements for Making Straight-Line Horizontal Movements Expired GB1167232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28467A GB1167232A (en) 1967-01-03 1967-01-03 Improvements in or relating to Arrangements for Making Straight-Line Horizontal Movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28467A GB1167232A (en) 1967-01-03 1967-01-03 Improvements in or relating to Arrangements for Making Straight-Line Horizontal Movements

Publications (1)

Publication Number Publication Date
GB1167232A true GB1167232A (en) 1969-10-15

Family

ID=9701659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28467A Expired GB1167232A (en) 1967-01-03 1967-01-03 Improvements in or relating to Arrangements for Making Straight-Line Horizontal Movements

Country Status (1)

Country Link
GB (1) GB1167232A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249011A (en) * 1990-10-27 1992-04-29 Bomford Turner Ltd Mower
GB2271337A (en) * 1992-10-07 1994-04-13 Atomic Energy Authority Uk A hydraulic manipulator.
US5379664A (en) * 1992-10-07 1995-01-10 United Kingdom Atomic Energy Authority Hydraulic manipulator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249011A (en) * 1990-10-27 1992-04-29 Bomford Turner Ltd Mower
GB2249011B (en) * 1990-10-27 1994-02-16 Bomford Turner Ltd Improvements in mowers.
GB2271337A (en) * 1992-10-07 1994-04-13 Atomic Energy Authority Uk A hydraulic manipulator.
US5379664A (en) * 1992-10-07 1995-01-10 United Kingdom Atomic Energy Authority Hydraulic manipulator
GB2271337B (en) * 1992-10-07 1996-08-28 Atomic Energy Authority Uk A hydraulic manipulator

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Legal Events

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