GB1452500A - Working or load lifting machine - Google Patents

Working or load lifting machine

Info

Publication number
GB1452500A
GB1452500A GB5961773A GB5961773A GB1452500A GB 1452500 A GB1452500 A GB 1452500A GB 5961773 A GB5961773 A GB 5961773A GB 5961773 A GB5961773 A GB 5961773A GB 1452500 A GB1452500 A GB 1452500A
Authority
GB
United Kingdom
Prior art keywords
mast section
relative
inner mast
drum
pivoting
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
GB5961773A
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.)
PRIESTMAN BROS Ltd
Original Assignee
PRIESTMAN BROS 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 PRIESTMAN BROS Ltd filed Critical PRIESTMAN BROS Ltd
Priority to GB5961773A priority Critical patent/GB1452500A/en
Publication of GB1452500A publication Critical patent/GB1452500A/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
    • F15B15/283—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using a cable wrapped on a drum and attached to the piston
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • 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
    • 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
    • G01D9/00—Recording measured values
    • G01D9/38—Producing one or more recordings, each recording being produced by controlling the recording element, e.g. stylus, in accordance with one variable and controlling the recording medium, e.g. paper roll, in accordance with another variable

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

1452500 Excavators PRIESTMAN BROS Ltd 12 Feb 1975 [21 Dec 1973 10 Jan 1974] 59617/73 and 01197/74 Heading E1F A load handling machine, e.g. a crane or excavator, comprises an inner mast section 10, 11 pivotally mounted at 12 to the machine body 7, an outer mast section 15 mounted on the inner mast section and having a load handling implement at its outer end, a chart which adopts a position responsive to the position of the inner mast section relative to the body, and a cursor 36 which adopts a position responsive to the position of the outer mast section relative to the inner mast section and which is movable over the chart to provide an indication relating the position of the implement relative to the body. The pivoting of the inner mast section rotates, via sliding core cable 29 and linkage 23, 25, a drum 20 on which the drum is mounted. The pivoting of the outer relative to the inner mast section moves, via sliding core cable 39 and linkage 34, 35, the cursor along the drum axis. The relative movement of the mast sections may be transmitted hydraulically or electrically.
GB5961773A 1973-12-21 1973-12-21 Working or load lifting machine Expired GB1452500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5961773A GB1452500A (en) 1973-12-21 1973-12-21 Working or load lifting machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5961773A GB1452500A (en) 1973-12-21 1973-12-21 Working or load lifting machine
GB119774 1974-01-10

Publications (1)

Publication Number Publication Date
GB1452500A true GB1452500A (en) 1976-10-13

Family

ID=26236559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5961773A Expired GB1452500A (en) 1973-12-21 1973-12-21 Working or load lifting machine

Country Status (1)

Country Link
GB (1) GB1452500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011766A1 (en) * 1978-12-01 1980-06-11 Friedrich Wilh. Schwing GmbH Excavator with position indication of its working tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011766A1 (en) * 1978-12-01 1980-06-11 Friedrich Wilh. Schwing GmbH Excavator with position indication of its working tool

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee