GB743799A - Improvements relating to telescopic struts - Google Patents

Improvements relating to telescopic struts

Info

Publication number
GB743799A
GB743799A GB1250653A GB1250653A GB743799A GB 743799 A GB743799 A GB 743799A GB 1250653 A GB1250653 A GB 1250653A GB 1250653 A GB1250653 A GB 1250653A GB 743799 A GB743799 A GB 743799A
Authority
GB
United Kingdom
Prior art keywords
strut
component
plunger
locking
extended
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
GB1250653A
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.)
Dowty Equipment Ltd
Original Assignee
Dowty Equipment 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 Dowty Equipment Ltd filed Critical Dowty Equipment Ltd
Priority to GB1250653A priority Critical patent/GB743799A/en
Publication of GB743799A publication Critical patent/GB743799A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • 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
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

743,799. Linkwork. DOWTY EQUIPMENT; Ltd., and KNIGHTS, R. N. May 3, 1954 [May 5, 1953], No. 12506/53. Class 80(3) [Also in Group XXIX] A telescopic strut is provided with means for locking the strut in its extended condition. The strut comprises an inner tubular component 14 having a bearing 17 sliding within the bore of a component 10. A locking sleeve 22 is provided in the component 10 and together with a retaining ring 23 defines a groove which is engaged by the heads 32 of locking tongues 33 when the strut is extended. The tongues 33 are spread outwardly by a plunger 38 disposed within the component 14 and slidably mounted on a piston 41 which is fixed relative to the outer component 10. When the strut is nearly fully extended, liquid is supplied through a connection 48 and a tube 46 to a chamber 44 to extend the plunger 38 until a step 55 abuts the heads 32 of the locking tongues which are retained inwardly by the sleeve 22. The plunger thus acts through the locking tongues upon the inner component 14 to assist the extension of the strut. When the heads 32 have traversed the inner surface of the sleeve they spread outwardly into the groove and are retained there by a full diameter surface 39 of the plunger. The strut is unlocked by connecting chamber 44 to exhaust, the liquid permanently supplied through a connection 53 and a passage 51 to the rear of the piston 41 retracting the plunger. The strut is extended and retracted by a hydraulic jack.
GB1250653A 1953-05-05 1953-05-05 Improvements relating to telescopic struts Expired GB743799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1250653A GB743799A (en) 1953-05-05 1953-05-05 Improvements relating to telescopic struts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1250653A GB743799A (en) 1953-05-05 1953-05-05 Improvements relating to telescopic struts

Publications (1)

Publication Number Publication Date
GB743799A true GB743799A (en) 1956-01-25

Family

ID=10005854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250653A Expired GB743799A (en) 1953-05-05 1953-05-05 Improvements relating to telescopic struts

Country Status (1)

Country Link
GB (1) GB743799A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060675A (en) * 1973-10-01 1975-05-24
GB2286227A (en) * 1994-01-18 1995-08-09 Dowty Aerospace Gloucester Actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060675A (en) * 1973-10-01 1975-05-24
GB2286227A (en) * 1994-01-18 1995-08-09 Dowty Aerospace Gloucester Actuator
GB2286227B (en) * 1994-01-18 1997-05-28 Dowty Aerospace Gloucester Actuator

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