ES377311A1 - Apparatus for crane jibs adapted to be extended and retracted telescopically - Google Patents

Apparatus for crane jibs adapted to be extended and retracted telescopically

Info

Publication number
ES377311A1
ES377311A1 ES377311A ES377311A ES377311A1 ES 377311 A1 ES377311 A1 ES 377311A1 ES 377311 A ES377311 A ES 377311A ES 377311 A ES377311 A ES 377311A ES 377311 A1 ES377311 A1 ES 377311A1
Authority
ES
Spain
Prior art keywords
jib
crane
section
extended
central section
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
ES377311A
Other languages
Spanish (es)
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.)
A E SUNDIN PRODUKTER AB
Original Assignee
A E SUNDIN PRODUKTER AB
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 A E SUNDIN PRODUKTER AB filed Critical A E SUNDIN PRODUKTER AB
Publication of ES377311A1 publication Critical patent/ES377311A1/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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)

Abstract

A crane jib for attachment to a crane column including in combination a jib inner section pivotally attached to the crane column, a jib central section telescopically disposed with respect to the inner section, a jib outer section telescopically disposed with respect to the central section, first and second hydraulic cylinders disposed within the central section and having their rods attached respectively to the inner and outer sections, valve means and control means for applying fluid pressure through the valve means to the hydraulic cylinders for telescoping said sections substantially simultaneously for extension and retraction of the jib.
ES377311A 1969-02-28 1970-02-27 Apparatus for crane jibs adapted to be extended and retracted telescopically Expired ES377311A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02764/69A SE329245B (en) 1969-02-28 1969-02-28

Publications (1)

Publication Number Publication Date
ES377311A1 true ES377311A1 (en) 1972-06-16

Family

ID=20260643

Family Applications (1)

Application Number Title Priority Date Filing Date
ES377311A Expired ES377311A1 (en) 1969-02-28 1970-02-27 Apparatus for crane jibs adapted to be extended and retracted telescopically

Country Status (8)

Country Link
US (1) US3672159A (en)
JP (1) JPS49585B1 (en)
CA (1) CA922672A (en)
DE (1) DE2007279A1 (en)
ES (1) ES377311A1 (en)
FI (1) FI52322C (en)
FR (1) FR2033422B1 (en)
SE (1) SE329245B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328705B2 (en) * 1973-02-14 1978-08-16
FR2266657B1 (en) * 1974-04-08 1977-09-30 Charbonnages De France
GB1554101A (en) * 1975-07-09 1979-10-17 Herbert Ltd A Pressure fluid operated feed drive system for a movable member
SE410410B (en) * 1976-06-23 1979-10-15 Inst Elektroswarki Patona PLANT FOR THE MANUFACTURE OF THE METAL GOOD WITH GREAT IMPORTANCE BY ELECTROSLAY GRAPHINATION
AU8247382A (en) * 1981-04-14 1983-04-21 Coles Cranes Ltd. Telescopic booms for cranes
DE3328908A1 (en) * 1983-08-10 1985-02-28 Stierlen-Maquet Ag, 7550 Rastatt OPERATING TABLE
SE454268B (en) * 1987-05-21 1988-04-18 Forshaga Mek Verk Ab DEVICE FOR HYDRAULICALLY CONTROLLED CRANE EXTENSION BOOMS
DE3730071A1 (en) * 1987-09-08 1989-03-16 Walter Hunger HYDRAULICALLY OPERABLE SUPPORT DEVICE FOR SEMI-TRAILER
IL98944A0 (en) * 1991-07-24 1992-07-15 Hammer Mordechai Device which widens and narrows for multiplying and transferring movement in space
US5375348A (en) * 1992-04-23 1994-12-27 Japanic Corporation Deep excavator
CN104875030A (en) * 2015-05-01 2015-09-02 安庆安星电气有限公司 Telescopic cantilever of radial drilling machine
CN104874828A (en) * 2015-05-01 2015-09-02 安庆安星电气有限公司 Radial drilling machine
DK179039B1 (en) * 2016-09-26 2017-09-11 Innovatorlab V/Marcus Reinholdt Pedersen Adjustable arm davit apparatus
US20180273352A1 (en) * 2017-03-22 2018-09-27 Wetherell Mfg Co. Sequential piggyback cylinders for extendable boom crane
CN110386540A (en) * 2019-07-08 2019-10-29 浙江双金机械集团股份有限公司 Tup lifting device for horizontal shaft impact crusher

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646025A (en) * 1951-02-07 1953-07-21 Bendix Aviat Corp By-pass valve for hydraulic motors
US2984373A (en) * 1958-07-16 1961-05-16 Warner Swasey Co Material handling apparatus
US3212604A (en) * 1962-04-09 1965-10-19 Eaton Metal Products Company Extensible derrick
US3240008A (en) * 1963-04-08 1966-03-15 Wayne W Mcmullen Control system for a material handling vehicle
US3250182A (en) * 1963-08-01 1966-05-10 Harold K Nansel Multiple extension apparatus
US3300060A (en) * 1965-02-03 1967-01-24 Pettibone Mulliken Corp Booms with sequential hydraulic extension
US3407947A (en) * 1965-12-22 1968-10-29 Antonio Valla & C S N C Material-moving device for moving objects

Also Published As

Publication number Publication date
DE2007279A1 (en) 1970-09-17
JPS49585B1 (en) 1974-01-08
FR2033422B1 (en) 1975-01-10
CA922672A (en) 1973-03-13
FR2033422A1 (en) 1970-12-04
FI52322C (en) 1977-08-10
FI52322B (en) 1977-05-02
SE329245B (en) 1970-10-05
US3672159A (en) 1972-06-27

Similar Documents

Publication Publication Date Title
ES377311A1 (en) Apparatus for crane jibs adapted to be extended and retracted telescopically
GB1356517A (en) Light weight telescoping boom
NL173626C (en) CRANE BOOM FITTED WITH TUBULAR TELESCOPIC ELEMENTS.
CA936841A (en) Jib assembly for telescoping crane boom
GB1310454A (en) Cranes having telescopic booms
BR7307121D0 (en) HYDRAULIC CYLINDER FOR TELESCOPIC CRANE BOOM
GB1343803A (en) Hydraulic vehicle crane
GB1152143A (en) Telescopic Boom for a Crane or the like
GB1073970A (en) Hydraulic system for operating a crane winch
GB1405387A (en) Telescopic boom
FR1319925A (en) Improvements made to the pistons of pressurized fluid cylinders, more specifically to the pistons of hydraulic props for mines
ES374955A1 (en) Method and apparatus for controlling the expansion and retraction of a telescopic cylinder assembly
SE7309779L (en) ACCURACY HYDRAULIC VAG EQUIPMENT.
GB1363776A (en) Telescopic crane jibs
GB977800A (en) Improvements in or relating to mine roof supports
GB1215223A (en) Improvements in or relating to mobile cranes
GB1174698A (en) Boom Retracting Machinery
GB1310268A (en) Hydraulic telescopic jibs or derricks
GB1213352A (en) Multiple telescopic jib for a crane
ES381288A1 (en) A hydraulic, telescopic damping device. (Machine-translation by Google Translate, not legally binding)
GB1300443A (en) Improvements in or relating to extensible hoisting crane booms
GB1033728A (en) Device for luffing the jib of a crane
ES446101A1 (en) Improvements in fluid catches, especially a hydraulic fluid. (Machine-translation by Google Translate, not legally binding)
GB793840A (en) Hydraulic system for slewing a hoisting crane
ES141309U (en) New provision of elements in telescopic cranes. (Machine-translation by Google Translate, not legally binding)