ATA138087A - Richt- und stuetzzylinder fuer ein lemniskatengetriebe - Google Patents

Richt- und stuetzzylinder fuer ein lemniskatengetriebe

Info

Publication number
ATA138087A
ATA138087A AT0138087A AT138087A ATA138087A AT A138087 A ATA138087 A AT A138087A AT 0138087 A AT0138087 A AT 0138087A AT 138087 A AT138087 A AT 138087A AT A138087 A ATA138087 A AT A138087A
Authority
AT
Austria
Prior art keywords
lemnis
gearbox
cat
alignment
support cylinder
Prior art date
Application number
AT0138087A
Other languages
English (en)
Other versions
AT387430B (de
Original Assignee
Voest Alpine Ag
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 Voest Alpine Ag filed Critical Voest Alpine Ag
Priority to AT0138087A priority Critical patent/AT387430B/de
Priority to ZA883114A priority patent/ZA883114B/xx
Priority to AU16734/88A priority patent/AU610892B2/en
Publication of ATA138087A publication Critical patent/ATA138087A/de
Application granted granted Critical
Publication of AT387430B publication Critical patent/AT387430B/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0427—Shield operating devices; Hinges therefor
    • 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
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
AT0138087A 1987-05-29 1987-05-29 Richt- und stuetzzylinder fuer ein lemniskatengetriebe AT387430B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT0138087A AT387430B (de) 1987-05-29 1987-05-29 Richt- und stuetzzylinder fuer ein lemniskatengetriebe
ZA883114A ZA883114B (en) 1987-05-29 1988-05-02 Directing and supporting cylinder for a lemniscate drive means
AU16734/88A AU610892B2 (en) 1987-05-29 1988-05-27 Directing and supporting cylinder for a lemniscate drive means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0138087A AT387430B (de) 1987-05-29 1987-05-29 Richt- und stuetzzylinder fuer ein lemniskatengetriebe

Publications (2)

Publication Number Publication Date
ATA138087A true ATA138087A (de) 1988-06-15
AT387430B AT387430B (de) 1989-01-25

Family

ID=3512629

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0138087A AT387430B (de) 1987-05-29 1987-05-29 Richt- und stuetzzylinder fuer ein lemniskatengetriebe

Country Status (3)

Country Link
AT (1) AT387430B (de)
AU (1) AU610892B2 (de)
ZA (1) ZA883114B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1219353B (it) * 1988-05-31 1990-05-11 Fiatgeotech Attuatore a comando tramite fluido
US5314268A (en) * 1993-01-13 1994-05-24 Jennmar Corporation Non-metallic reinforcing rod and method of use in supporting a rock formation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729564C2 (de) * 1977-06-30 1979-08-09 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Lemniskatenf ührung für hydraulische Schreitausbaugestelle
FR2478763A1 (fr) * 1980-03-19 1981-09-25 Creusot Loire Dissipateur hydraulique d'energie

Also Published As

Publication number Publication date
AT387430B (de) 1989-01-25
AU610892B2 (en) 1991-05-30
ZA883114B (en) 1988-11-08
AU1673488A (en) 1988-12-01

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee
UEP Publication of translation of european patent specification