FR1454102A - Device indicating the state of extension of jacks or props - Google Patents

Device indicating the state of extension of jacks or props

Info

Publication number
FR1454102A
FR1454102A FR36673A FR36673A FR1454102A FR 1454102 A FR1454102 A FR 1454102A FR 36673 A FR36673 A FR 36673A FR 36673 A FR36673 A FR 36673A FR 1454102 A FR1454102 A FR 1454102A
Authority
FR
France
Prior art keywords
props
jacks
extension
state
device indicating
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
FR36673A
Other languages
French (fr)
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.)
Gullick Ltd
Original Assignee
Gullick 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
Priority to US496264A priority Critical patent/US3412391A/en
Application filed by Gullick Ltd filed Critical Gullick Ltd
Priority to FR36673A priority patent/FR1454102A/en
Application granted granted Critical
Publication of FR1454102A publication Critical patent/FR1454102A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2853—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using potentiometers
    • 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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • 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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • E21D23/144—Measuring the advance of support units with respect to internal points of reference, e.g. with respect to neighboring support units or extension of a cylinder
    • 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/02—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means
    • G01D5/06—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means acting through a wall or enclosure, e.g. by bellows, by magnetic coupling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
    • G01D5/165—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact or actuation and a resistive track
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
    • G01D5/251—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel
    • G01D5/2515—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel with magnetically controlled switches, e.g. by movement of a magnet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FR36673A 1964-10-31 1965-10-29 Device indicating the state of extension of jacks or props Expired FR1454102A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US496264A US3412391A (en) 1964-10-31 1965-10-15 Pressure-fluid-operated devices and means for indicating the condition thereof
FR36673A FR1454102A (en) 1964-10-31 1965-10-29 Device indicating the state of extension of jacks or props

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4449964 1964-10-31
FR36673A FR1454102A (en) 1964-10-31 1965-10-29 Device indicating the state of extension of jacks or props

Publications (1)

Publication Number Publication Date
FR1454102A true FR1454102A (en) 1966-07-22

Family

ID=27736131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR36673A Expired FR1454102A (en) 1964-10-31 1965-10-29 Device indicating the state of extension of jacks or props

Country Status (2)

Country Link
US (1) US3412391A (en)
FR (1) FR1454102A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090351A1 (en) * 1970-05-28 1972-01-14 Clark Equipment Co
FR2499172A1 (en) * 1979-05-02 1982-08-06 Gewerk Eisenhuette Westfalia WORKING JACK, PARTICULARLY FOR A SIMULTANEOUS OR TIMED CONTROL DEVICE
EP0128881A2 (en) * 1983-03-22 1984-12-19 Hara Production Aktiebolag Potentiometer device for determining the position of hydraulic pistons and the like
FR2573200A1 (en) * 1984-11-15 1986-05-16 Siette Spa SYSTEM FOR MEASURING THE HEIGHT ABOVE THE GROUND OF A VEHICLE
EP0851128A3 (en) * 1991-10-04 2000-01-12 Fanuc Robotics North America, Inc. Non-contact sensor for use in fluid transfer
NL1014131C2 (en) * 2000-01-20 2001-07-23 Inalfa Ind Bv Device for measuring the position of an object movable to and fro over a fixed path.

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594740A (en) * 1967-08-10 1971-07-20 Combustion Eng Position indicating apparatus
JPS5135034Y1 (en) * 1968-02-08 1976-08-30
US3725887A (en) * 1968-06-10 1973-04-03 Sneider Electronic Sys Inc Radio transmitting alarm system
US3646293A (en) * 1970-04-06 1972-02-29 William A Howard Electrical signal generator and liquid level indicator
US3726191A (en) * 1971-02-08 1973-04-10 Bunker Ramo Electrically controlled hydraulic system and transducer therefor
US3702473A (en) * 1971-08-27 1972-11-07 Gen Motors Corp Seven-state resistance sensing supervisory system utilizing single pole-double throw switches
US3702474A (en) * 1971-08-27 1972-11-07 Gen Motors Corp Seven state resistance sensing supervisory system
US3800587A (en) * 1972-09-29 1974-04-02 Signet Controls Inc Three-sphere prover interchange
US4039916A (en) * 1972-10-10 1977-08-02 Gabriel Selam Device for precluding a collision between a mobile object and a fixed or mobile obstacle
US4096753A (en) * 1974-11-19 1978-06-27 Coal Industry (Patents) Limited Mine equipment
US3982087A (en) * 1975-02-27 1976-09-21 De Laval Turbine Inc. Liquid-level indicating means
US4523514A (en) * 1981-09-08 1985-06-18 Deere & Company Position sensing cylinder
CA1180916A (en) * 1981-09-08 1985-01-15 Ronnie F. Burk Position-sensing cylinder
DE3200176A1 (en) * 1982-01-07 1983-07-14 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DEVICE FOR STROKE MONITORING OF THE HYDRAULIC CONTROL CYLINDERS OF AN UNDERGROUND RECOVERY PLANT, IN PARTICULAR A PLANING PLANT
DE3318641A1 (en) * 1982-12-22 1984-06-28 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DEVICE FOR CONTROLLING THE SLIDING CAP CYLINDER HYDRAULIC SCREW REMOVAL UNITS
DE3430045C2 (en) * 1984-08-16 1986-07-17 Boge Gmbh, 5208 Eitorf Device for determining the path of a piston
US4889035A (en) * 1985-07-16 1989-12-26 Thermo Electron Web Systems, Inc. Magnetically actuated valve for cyclically operating piston-cylinder actuator
US4664239A (en) * 1985-08-08 1987-05-12 Applied Power Inc. System for disabling, enabling and otherwise controlling vehicle functions based upon continuous measurement of clutch wear and clutch position
US4749936A (en) * 1986-11-03 1988-06-07 Vickers, Incorporated Power transmission
US4803483A (en) * 1987-07-16 1989-02-07 Hughes Tool Company Downhole pressure and temperature monitoring system
US4980526A (en) * 1989-04-06 1990-12-25 Hamlin Incorporated Device and method for testing acceleration shock sensors
US4877927A (en) * 1989-04-06 1989-10-31 Hamlin Incorporated Extended dwell shock sensing device
US5212357A (en) * 1991-08-14 1993-05-18 Hamlin, Inc. Extended minimum dwell shock sensor
CN104963712A (en) * 2014-12-24 2015-10-07 李振安 Remote controller for intelligent controller having multiple control functions
DE102016113510A1 (en) * 2016-07-21 2018-01-25 Weber Hydraulik Gmbh Cylinder / piston unit for a support
NO20190070A1 (en) * 2019-01-18 2020-07-20 C6 Tech As Resistive position sensor
WO2020149747A1 (en) * 2019-01-18 2020-07-23 C6 Technologies As Resistive position sensor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723172A (en) * 1922-05-26 1929-08-06 Auto Meter Company Inc Liquid-measuring device
US1617287A (en) * 1924-11-07 1927-02-08 Autometer Co Inc Electric indicating means
US2620661A (en) * 1947-09-22 1952-12-09 Lorne E Roux Magnetic gauge
US2828481A (en) * 1953-08-19 1958-03-25 Saint Chamond Granat Device for controlling the correspondence of the positions of two movable members in relation to stationary members
US3217307A (en) * 1959-07-17 1965-11-09 Gen Electric Linear motion-producing device with position indicator
US3200645A (en) * 1963-05-22 1965-08-17 Gen Electric Electric position sensor
US3341843A (en) * 1964-09-17 1967-09-12 Gullick Ltd Remote indicating systems for mine roof supports

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090351A1 (en) * 1970-05-28 1972-01-14 Clark Equipment Co
FR2499172A1 (en) * 1979-05-02 1982-08-06 Gewerk Eisenhuette Westfalia WORKING JACK, PARTICULARLY FOR A SIMULTANEOUS OR TIMED CONTROL DEVICE
EP0128881A2 (en) * 1983-03-22 1984-12-19 Hara Production Aktiebolag Potentiometer device for determining the position of hydraulic pistons and the like
EP0128881A3 (en) * 1983-03-22 1987-06-03 Hara Production Aktiebolag Potentiometer device for determining the position of hydraulic pistons and the like
FR2573200A1 (en) * 1984-11-15 1986-05-16 Siette Spa SYSTEM FOR MEASURING THE HEIGHT ABOVE THE GROUND OF A VEHICLE
EP0851128A3 (en) * 1991-10-04 2000-01-12 Fanuc Robotics North America, Inc. Non-contact sensor for use in fluid transfer
NL1014131C2 (en) * 2000-01-20 2001-07-23 Inalfa Ind Bv Device for measuring the position of an object movable to and fro over a fixed path.
EP1118839A1 (en) * 2000-01-20 2001-07-25 Inalfa Industries B.V. Device for measuring the position of an object that can be moved forward and backward along a fixed path
US6486684B2 (en) 2000-01-20 2002-11-26 Inalfa Industries B.V. Device for measuring the position of an object that can be moved forward and backward along a fixed path

Also Published As

Publication number Publication date
US3412391A (en) 1968-11-19

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