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NO963153L - Telescope - Google Patents

Telescope

Info

Publication number
NO963153L
NO963153L NO963153A NO963153A NO963153L NO 963153 L NO963153 L NO 963153L NO 963153 A NO963153 A NO 963153A NO 963153 A NO963153 A NO 963153A NO 963153 L NO963153 L NO 963153L
Authority
NO
Norway
Prior art keywords
piston
cylinder
piston rod
hydraulic
channels
Prior art date
Application number
NO963153A
Other languages
Norwegian (no)
Other versions
NO963153D0 (en
Inventor
Jan Pollestad
Original Assignee
Trimatic International As
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 Trimatic International As filed Critical Trimatic International As
Priority to NO963153A priority Critical patent/NO963153L/en
Publication of NO963153D0 publication Critical patent/NO963153D0/en
Priority to PCT/NO1997/000191 priority patent/WO1998004492A1/en
Priority to AU37885/97A priority patent/AU3788597A/en
Publication of NO963153L publication Critical patent/NO963153L/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Actuator (AREA)

Abstract

Teleskop av den art som har et ikke-sirkulært, fortrinnsvis rektangulært tverrsnitt, hvor minst ett teleskopledd er innrettet til å kunne forskyves av en hydraulisk stempel- sylinder som omfatter et stempel (15, 20), en stempelstang (19, 24) og et sylinderhus. Forskyvbare teleskopledd dannes av hulprofiler (2, 4) som har et sirkulært løp (5, 8) som danner sylinderhus i den hydrauliske stempelsylinder. Stempelstangen er forsynt med to innvendige kanaler som munner ut på hver sin side av stempelet. De nevnte kanaler munner ut ved stempelstangens indre ende, og kanalene er innrettet til å lede hydraulisk væske til og fra stempelsylinderen, idet stempelstangens indre ende er innrettet til å stå i forbindelse med en hydraulisk trykkilde.A telescope of the kind having a non-circular, preferably rectangular cross-section, wherein at least one telescopic joint is arranged to be displaceable by a hydraulic piston cylinder comprising a piston (15, 20), a piston rod (19, 24) and a cylinder. Movable telescopic joints are formed by hollow profiles (2, 4) having a circular barrel (5, 8) forming cylinder housings in the hydraulic piston cylinder. The piston rod is provided with two internal channels which open on each side of the piston. Said channels open at the inner end of the piston rod and the channels are arranged to direct hydraulic fluid to and from the piston cylinder, the inner end of the piston rod being arranged to communicate with a hydraulic pressure source.

NO963153A 1996-07-26 1996-07-26 Telescope NO963153L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO963153A NO963153L (en) 1996-07-26 1996-07-26 Telescope
PCT/NO1997/000191 WO1998004492A1 (en) 1996-07-26 1997-07-22 Telescope
AU37885/97A AU3788597A (en) 1996-07-26 1997-07-22 Telescope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO963153A NO963153L (en) 1996-07-26 1996-07-26 Telescope

Publications (2)

Publication Number Publication Date
NO963153D0 NO963153D0 (en) 1996-07-26
NO963153L true NO963153L (en) 1998-01-27

Family

ID=19899649

Family Applications (1)

Application Number Title Priority Date Filing Date
NO963153A NO963153L (en) 1996-07-26 1996-07-26 Telescope

Country Status (3)

Country Link
AU (1) AU3788597A (en)
NO (1) NO963153L (en)
WO (1) WO1998004492A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209264B (en) * 1965-03-19 1966-01-20 Beteiligungs & Patentverw Gmbh Crane with a telescopic boom that can be raised and lowered
DE1531276A1 (en) * 1967-12-29 1969-12-18 Toussaint & Hess Gmbh Hydraulic drive for at least three-part telescopic boom, especially for cranes
GB1213352A (en) * 1968-01-18 1970-11-25 Demag Baumaschinen Gmbh Multiple telescopic jib for a crane
US3795176A (en) * 1971-10-26 1974-03-05 Pettibone Corp Boom-crowd cylinders with selective sequencing by solenoid valve
CH596945A5 (en) * 1975-12-09 1978-03-31 Studer Ag Fritz

Also Published As

Publication number Publication date
NO963153D0 (en) 1996-07-26
AU3788597A (en) 1998-02-20
WO1998004492A1 (en) 1998-02-05

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