GB822752A - Improvements in or relating to automatic brake mechanisms - Google Patents

Improvements in or relating to automatic brake mechanisms

Info

Publication number
GB822752A
GB822752A GB36150/56A GB3615056A GB822752A GB 822752 A GB822752 A GB 822752A GB 36150/56 A GB36150/56 A GB 36150/56A GB 3615056 A GB3615056 A GB 3615056A GB 822752 A GB822752 A GB 822752A
Authority
GB
United Kingdom
Prior art keywords
band
flywheel
shaft
drum
rotates
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
GB36150/56A
Inventor
Arthur Frederick Allen
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB36150/56A priority Critical patent/GB822752A/en
Publication of GB822752A publication Critical patent/GB822752A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

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

Abstract

822,752. Nuclear reactor control-rod retarders. ROLLS-ROYCE Ltd. Jan. 10, 1958 [Nov. 26, 1956], No. 36150/56. Class 103 (1). The movement of a neutron-absorbent member 6 downwardly into the core of a nuclear reactor is controlled by the tightening of a band 5a upon a drum, the shaft 10 of which rotates with a drum 4 on which is coiled a cable 9 connected to the member 6. The band 5a is initially held out of contact with the brake drum by means of a flywheel 2, being rotated through a certain angle and held in this position, by means not shown, so that through torsionspring 3, the pin 3b to which is secured the end of band 5, is also moved clockwise to loosen the band and a peg 2b, on the bore of the flywheel shaft, causes through engagement with a peg 1b, limited clockwise rotation of a shaft 1 anchored at one end. It is arranged that inertia of flywheel 2 and the stiffness of the part 3 should be such that when the flywheel is released, the straightening of the shaft 1, rotates it anticlockwise to engage the band 5a with its drum 5, when the member 6, falling under gravity, is almost at the limit of its fall, whereupon having arrested the member 6, due to the resilience of the spring 3, the flywheel rotates slightly back in a clockwise direction for releasing the member 6 for its final movement.
GB36150/56A 1956-11-26 1956-11-26 Improvements in or relating to automatic brake mechanisms Expired GB822752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36150/56A GB822752A (en) 1956-11-26 1956-11-26 Improvements in or relating to automatic brake mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36150/56A GB822752A (en) 1956-11-26 1956-11-26 Improvements in or relating to automatic brake mechanisms

Publications (1)

Publication Number Publication Date
GB822752A true GB822752A (en) 1959-10-28

Family

ID=10385452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36150/56A Expired GB822752A (en) 1956-11-26 1956-11-26 Improvements in or relating to automatic brake mechanisms

Country Status (1)

Country Link
GB (1) GB822752A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164526A (en) * 1960-12-06 1965-01-05 Commissariat Energie Atomique Reel type control rod brake
US3202580A (en) * 1963-02-11 1965-08-24 Gen Dynamics Corp Reel-type control rod drive and brake and braking mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164526A (en) * 1960-12-06 1965-01-05 Commissariat Energie Atomique Reel type control rod brake
DE1212792B (en) * 1960-12-06 1966-03-17 Commissariat Energie Atomique Device for braking the movement of a body, in particular for braking the falling movement of a control rod in nuclear reactors
US3202580A (en) * 1963-02-11 1965-08-24 Gen Dynamics Corp Reel-type control rod drive and brake and braking mechanism

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