GB978443A - Braking device for falling objects - Google Patents

Braking device for falling objects

Info

Publication number
GB978443A
GB978443A GB17328/62A GB1732862A GB978443A GB 978443 A GB978443 A GB 978443A GB 17328/62 A GB17328/62 A GB 17328/62A GB 1732862 A GB1732862 A GB 1732862A GB 978443 A GB978443 A GB 978443A
Authority
GB
United Kingdom
Prior art keywords
sleeve
cylindrical
control rod
flared
falling objects
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
GB17328/62A
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.)
Groupement Atomique Alsacienne Atlantique SA
Alsacienne Atom
Original Assignee
Groupement Atomique Alsacienne Atlantique SA
Alsacienne Atom
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 Groupement Atomique Alsacienne Atlantique SA, Alsacienne Atom filed Critical Groupement Atomique Alsacienne Atlantique SA
Publication of GB978443A publication Critical patent/GB978443A/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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
    • F16F7/125—Units with a telescopic-like action as one member moves into, or out of a second member
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/20—Disposition of shock-absorbing devices ; Braking arrangements
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Vibration Dampers (AREA)

Abstract

978,443. Non-frictional brakes. GROUPEMENT ATOMIQUE ALSACIENNE ATLANTIQUE. May 4, 1962 [May 5, 1961], No. 17328/62. Heading F2E. [Also in Division G6] A device for braking falling objects comprises a cylindrical sleeve element made of easily deformable metal into which is insertable by deformation of the sleeve a cylindrical element, the outside diameter of which is greater than the inside diameter of the sleeve, one of the elements being movable in response to the dropping of an object and the other being fixed. The cylindrical element may be constructed on the object or separately therefrom. As shown, the sleeve comprises tubular elements 1, 1<SP>1</SP> of light metal, e.g. aluminium fixed to liners 2, 3 also of light metal and is inserted in a nuclear reactor casing 4 which rests upon a flange 5 capping a pointed foot 6 supported by the structure of the reactor. The upper part 1a of the element 1 is flared to receive the lower end of the control rod 7 which has a conical chamfer 8. If the suspension means of the control rod 7 should break, the latter would first engage the flared part 1a and then drive into the element 1, pushing out its sides until the work performed had dissipated its kinetic energy.
GB17328/62A 1961-05-05 1962-05-04 Braking device for falling objects Expired GB978443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR860970A FR1296086A (en) 1961-05-05 1961-05-05 Braking device for masses causing an accidental fall

Publications (1)

Publication Number Publication Date
GB978443A true GB978443A (en) 1964-12-23

Family

ID=8754601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17328/62A Expired GB978443A (en) 1961-05-05 1962-05-04 Braking device for falling objects

Country Status (5)

Country Link
DE (1) DE1199896B (en)
FR (1) FR1296086A (en)
GB (1) GB978443A (en)
LU (1) LU41658A1 (en)
NL (1) NL277872A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284172B (en) * 1967-01-07 1968-11-28 United Power Company Ltd Shock absorber for falling objects
DE1750521B1 (en) * 1967-06-12 1972-02-03 Peugeot DEVICE FOR ABSORBING KINETIC ENERGY
WO2005045275A1 (en) * 2003-11-11 2005-05-19 Pebble Bed Modular Reactor (Proprietary) Limited Shock absorber

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305452A (en) * 1967-02-21 Fall-damping device for a nuclear reactor
FR1409911A (en) * 1964-07-24 1965-09-03 Commissariat Energie Atomique Fall absorber device
FR1506453A (en) * 1966-10-28 1967-12-22 Commissariat Energie Atomique Fall absorption device
NL6709687A (en) * 1967-07-12 1969-01-14
FR2188248B1 (en) * 1972-06-02 1974-12-27 Activite Atom Avance
FR2479535A1 (en) * 1980-03-26 1981-10-02 Commissariat Energie Atomique DEVICE FOR LIMITING THE EFFECTS OF AXIAL HYDRAULIC PUSH ON JOINT NUCLEAR REACTOR COMBUSTIBLE ASSEMBLIES
FR2479536A1 (en) * 1980-03-26 1981-10-02 Commissariat Energie Atomique IMPROVEMENTS IN GUIDE TUBES OF COMBUSTIBLE ASSEMBLIES FOR A NUCLEAR REACTOR AND METHOD FOR DISASSEMBLING THESE GUIDE TUBES
EP0128977B1 (en) * 1983-06-17 1986-12-03 ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme Storage frame shock absorber for fuel elements

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570842A (en) * 1957-09-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284172B (en) * 1967-01-07 1968-11-28 United Power Company Ltd Shock absorber for falling objects
DE1750521B1 (en) * 1967-06-12 1972-02-03 Peugeot DEVICE FOR ABSORBING KINETIC ENERGY
WO2005045275A1 (en) * 2003-11-11 2005-05-19 Pebble Bed Modular Reactor (Proprietary) Limited Shock absorber

Also Published As

Publication number Publication date
DE1199896B (en) 1965-09-02
FR1296086A (en) 1962-06-15
LU41658A1 (en) 1962-07-05
NL277872A (en)

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