ZA741958B - Fluid control mechanism - Google Patents

Fluid control mechanism

Info

Publication number
ZA741958B
ZA741958B ZA00741958A ZA741958A ZA741958B ZA 741958 B ZA741958 B ZA 741958B ZA 00741958 A ZA00741958 A ZA 00741958A ZA 741958 A ZA741958 A ZA 741958A ZA 741958 B ZA741958 B ZA 741958B
Authority
ZA
South Africa
Prior art keywords
control mechanism
fluid control
fluid
control
Prior art date
Application number
ZA00741958A
Other languages
English (en)
Inventor
J Garaty
Original Assignee
Australian Iron And Steel Ltd
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 Australian Iron And Steel Ltd filed Critical Australian Iron And Steel Ltd
Publication of ZA741958B publication Critical patent/ZA741958B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2521—Flow comparison or differential response
    • Y10T137/2524—Flow dividers [e.g., reversely acting controls]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)
ZA00741958A 1973-04-02 1974-03-26 Fluid control mechanism ZA741958B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB284073 1973-04-02

Publications (1)

Publication Number Publication Date
ZA741958B true ZA741958B (en) 1975-03-26

Family

ID=3765664

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00741958A ZA741958B (en) 1973-04-02 1974-03-26 Fluid control mechanism

Country Status (5)

Country Link
US (1) US3948145A (xx)
DE (1) DE2415645A1 (xx)
FR (1) FR2223576B1 (xx)
GB (2) GB1467273A (xx)
ZA (1) ZA741958B (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013149283A1 (en) * 2012-04-04 2013-10-10 Rambor Pty Limited A roof bolter
CN103089739B (zh) * 2013-02-06 2015-04-15 冯广建 一种应用于钢筋成型机折弯机构的联动伸缩阀
US20140366955A1 (en) * 2013-06-13 2014-12-18 Caterpillar Global Mining America Llc Remote regulator for roof bolter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462983A (en) * 1943-10-20 1949-03-01 Bendix Aviat Corp Fluid actuated valve
US2804751A (en) * 1953-06-05 1957-09-03 Schroeder Brothers Pressure actuated control for hydraulic power systems
US2995141A (en) * 1960-04-08 1961-08-08 Webster Electric Co Inc Dual volume flow divider

Also Published As

Publication number Publication date
FR2223576B1 (xx) 1977-10-14
GB1467272A (en) 1977-03-16
GB1467273A (en) 1977-03-16
US3948145A (en) 1976-04-06
DE2415645A1 (de) 1974-10-17
FR2223576A1 (xx) 1974-10-25

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