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GB1473032A - Releasable fire-actuated links - Google Patents

Releasable fire-actuated links

Info

Publication number
GB1473032A
GB1473032A GB2027375A GB2027375A GB1473032A GB 1473032 A GB1473032 A GB 1473032A GB 2027375 A GB2027375 A GB 2027375A GB 2027375 A GB2027375 A GB 2027375A GB 1473032 A GB1473032 A GB 1473032A
Authority
GB
United Kingdom
Prior art keywords
configuration
bimetallic element
increase
gripping means
ambient temperature
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
GB2027375A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1473032A publication Critical patent/GB1473032A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • A62C2/245—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts with thermostatic elements, e.g. bimetallic, resettable actuators
    • 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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermally Actuated Switches (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Air-Flow Control Members (AREA)

Abstract

1473032 Heat actuated link F J McCABE 14 May 1975 [30 Aug 1974] 20273/75 Heading G1D [Also in Division E2] A heat actuated link for forming part of a fire fighting system, comprises a releasable member 18 and gripping means for retaining the member 18 when in a first configuration and for releasing the member 18 when in a second configuration, the gripping means comprising heat responsive means which causes the gripping means to move to the first configuration at a pre-selected ambient temperature, and to move to the second configuration in response to a pre-selected increase in ambient temperature, the heat responsive means comprising means for mechanically amplifying the response of the gripping means to the increase in ambient temperature. In the embodiment shown, the heat responsive means comprises a serpentine bimetallic element 14, the free end of the element being provided with a bevelled pin 20 which, in the first configuration passes through an aperture in portion 26 of the retaining means to abut or substantially abut striker portion 57 and thereby retain the releasable member. The phantom configuration is taken up after a temperature rise, the temperature increase required being dependant upon the amount by which portion 30 overlaps portion 28, the larger the overlap the smaller the required temperature increase. The bimetallic element may, Fig. 4 (not shown) be enclosed, heating thereof being effected by a electric means, a spring contact thereof abutting the bimetallic element throughout heating thereof. The bimetallic element may vary in width in the manner shown in Fig. 1.
GB2027375A 1974-08-30 1975-05-14 Releasable fire-actuated links Expired GB1473032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US501867A US3889314A (en) 1974-08-30 1974-08-30 Heat actuated link

Publications (1)

Publication Number Publication Date
GB1473032A true GB1473032A (en) 1977-05-11

Family

ID=23995337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2027375A Expired GB1473032A (en) 1974-08-30 1975-05-14 Releasable fire-actuated links

Country Status (5)

Country Link
US (1) US3889314A (en)
JP (1) JPS5819307B2 (en)
CA (1) CA1028730A (en)
DE (1) DE2522363A1 (en)
GB (1) GB1473032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203245A (en) * 1987-03-24 1988-10-12 Ymos Ag Ind Produkte A bimetallic circuit element for a lock

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080978A (en) * 1974-05-26 1978-03-28 Mccabe Francis J Smoke, fire and air control damper
US3999790A (en) * 1975-10-06 1976-12-28 Nicoa Corporation Heat releasable lock
US4040304A (en) * 1976-04-13 1977-08-09 Mccabe Francis J Clutch motor for use in resettable fire damper
US4200954A (en) * 1976-04-13 1980-05-06 Mccabe Francis J Telescoping heat responsive releasing means
US4041570A (en) * 1976-04-13 1977-08-16 Mccabe Francis J Resettable, heat actuatable fire link
US4555981A (en) * 1976-05-26 1985-12-03 Mccabe Francis J Damper operator for use with air, smoke and fire dampers
US4301569A (en) * 1978-05-12 1981-11-24 Mccabe Francis J Quadrant operator
US4195384A (en) * 1976-05-26 1980-04-01 Mccabe Francis J Self-resetting, cable operated translating drive link
US4146048A (en) * 1977-05-02 1979-03-27 Prefco Productions, Inc. Fire damper and method of fabrication
US4213227A (en) * 1978-03-13 1980-07-22 Mccabe Francis J Telescoping heat responsive releasing means
US4263930A (en) * 1978-04-14 1981-04-28 Prefco Products, Inc. Diffuser concealable, volume control, heat-responsive, semi-automatic resetting, butterfly damper and operator
US4295486A (en) * 1978-04-27 1981-10-20 Prefco Products, Inc. Low cost, diffuser concealable, volume control, heat responsive, resettable, butterfly damper operator
US4287638A (en) * 1978-11-29 1981-09-08 Mccabe Francis J Inside/outside link
JPS5599542A (en) * 1979-01-23 1980-07-29 Kurifu Kk Bimetal type temperature fuse
US4472999A (en) * 1979-03-01 1984-09-25 Mccabe Francis J Damper operator for use with air, smoke and fire dampers
US4442862A (en) * 1980-05-30 1984-04-17 Mccabe Francis J Link bar operator for rotating blade dampers
US4390123A (en) * 1980-12-01 1983-06-28 Mccabe Francis J Thermally activated, automatic, single blade damper and damper operator
US4372485A (en) * 1980-12-01 1983-02-08 Mccabe Francis J Thermally activated, automatic damper and damper operator
US4432609A (en) * 1982-01-06 1984-02-21 The United States Of America As Represented By The Secretary Of The Air Force Radiation protection louver
AT379857B (en) * 1983-09-09 1986-03-10 Wuester Mewaplast Ing H DEVICE FOR SELF-ADJUSTING, ESPECIALLY FOR OPENING AND CLOSING ELEMENTS
DE3523585A1 (en) * 1985-07-02 1987-01-15 Dieter Beikirch Apparatus for releasing opening devices for domelights, smoke-outlet flaps or the like
US4817912A (en) * 1987-09-24 1989-04-04 Mccabe Francis J Bi-metal operator for smoke, fire and air control damper
US4805261A (en) * 1987-10-08 1989-02-21 Safe-Air Of Illinois, Inc. Resettable fire link
US4905344A (en) * 1989-04-24 1990-03-06 Mccabe Francis J Heat actuated link
US5020601A (en) * 1990-03-26 1991-06-04 Viking Corporation Concealed sprinkler assembly
US20060192395A1 (en) * 2005-02-25 2006-08-31 Mccabe Francis J Releasable, resettable latch mechanism
ES2281304B2 (en) * 2006-12-13 2008-05-16 Universidad Politecnica De Madrid AUTONOMOUS MECHANICAL SYSTEM FOR OPENING AND CLOSING OF WINDOWS.
CN101769348A (en) * 2008-12-26 2010-07-07 鸿富锦精密工业（深圳）有限公司 clutch
FR2948445A1 (en) * 2009-07-23 2011-01-28 Soler & Palau Fan and electric motor cooling device for ventilation case of controlled mechanical ventilation installation, has thermodeformable element with strip blocking trap door until predetermined temperature, where door is provided with notches
MX345362B (en) * 2011-12-09 2017-01-27 Sargent Mfg Co Fire actuated release mechanism to separate electronic door lock from fire door.
US8763316B2 (en) * 2012-03-30 2014-07-01 Sunpower Corporation Active fire-blocking wind deflector
EP3666344A1 (en) * 2018-12-10 2020-06-17 Hilti Aktiengesellschaft Fire safety element with bimetal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987330A (en) * 1932-10-05 1935-01-08 Fischer Alexander Otto Automatic door and like controlling device
BE507432A (en) * 1950-11-29
US2954106A (en) * 1954-08-24 1960-09-27 Schlage Lock Co Fusible link device for hold open door closers
US2792087A (en) * 1954-09-20 1957-05-14 Lcn Closers Inc Fusible holding arm for door closers
US2901064A (en) * 1958-03-14 1959-08-25 Lcn Closers Inc Fusible holding arm for door closers
DE2061924A1 (en) * 1970-12-16 1972-07-13 Eberle Werke Kg Temperature sensitive displacement system
US3725972A (en) * 1971-09-07 1973-04-10 Cabe F Mc Fire link and method of actuating same
JPS5329040Y2 (en) * 1972-08-02 1978-07-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203245A (en) * 1987-03-24 1988-10-12 Ymos Ag Ind Produkte A bimetallic circuit element for a lock
GB2203245B (en) * 1987-03-24 1991-10-02 Ymos Ag Ind Produkte A bimetallic circuit element and a lock incorporating such an element

Also Published As

Publication number Publication date
CA1028730A (en) 1978-03-28
JPS5126797A (en) 1976-03-05
DE2522363A1 (en) 1976-03-11
JPS5819307B2 (en) 1983-04-18
US3889314A (en) 1975-06-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19950513