GB1503225A - Device for controlling a fibre-protection flap - Google Patents

Device for controlling a fibre-protection flap

Info

Publication number
GB1503225A
GB1503225A GB34728/75A GB3472875A GB1503225A GB 1503225 A GB1503225 A GB 1503225A GB 34728/75 A GB34728/75 A GB 34728/75A GB 3472875 A GB3472875 A GB 3472875A GB 1503225 A GB1503225 A GB 1503225A
Authority
GB
United Kingdom
Prior art keywords
lever
flap
pin
rotates
clockwise
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
GB34728/75A
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 GB1503225A publication Critical patent/GB1503225A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

1503225 Device for controlling fire protection flap E SIEGWART 21 Aug 1975 [21 Aug 1974] 34728/75 Heading A5A [Also in Division E2] A device for controlling a fire protection flap subject, in its open position, to a closing force, comprises a lever 16 pivoted at 18 and connected to the flap, a catching lever 9 pivoted at 2 and having a slot recess 14 which catches a pin 15 on lever 16 and holds the flap via 16 in the open position, and a thermally responsive element 4 with fusible pin 3 which abuts and holds a control lever I also pivoted at 2, wherein, in fire conditions, pin 3 melts and allows lever 1 under the influence of a spring to rotate about 2 clockwise and thus allow pin 15 to escape from recess 14, whereupon lever 16 rotates anticlockwise about 18 and closes the flap. In addition, a smoke response motor 13 with a plunger disc 12 is provided which, on detection of smoke, moves to the right (in Fig 1) and rotates (via pin 11) a pawl 6 pivotally mounted at 5 on the control lever 1, whereby a pin 8 on pawl 6 is moved to allow the catching lever 9 to rotate clockwise and release 16 as before. The flap may be closed manually by pulling down on a draw lever 23 whose end 25 locates the pawl 6 and is rotated thereby to release catching lever 9 as described above; or the flap may be opened from the locked closed position when locking lever 20 is rotated clockwise by the downward pull on 23 so as to free pin 15 from abutment with lever 20. The flap, in its closed position, may be opened mechanically by an adjusting motor (not shown) which acts on a thrust rod 28 having (i) a stop 31 which rotates lever 34 and thereby moves lever 32 downwards to release 15 via 20 and (ii) a stop disc 29 which acts upon a pin 30 of a control segment 17 attached to lever 16 and rotates it when 15 is released. Switch 37 is a smoke alarm, actuated when control lever 1 has moved clockwise.
GB34728/75A 1974-08-21 1975-08-21 Device for controlling a fibre-protection flap Expired GB1503225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2440108A DE2440108A1 (en) 1974-08-21 1974-08-21 DEVICE FOR CONTROLLING A FIRE PROTECTION FLAP IN VENTILATION DUCTS

Publications (1)

Publication Number Publication Date
GB1503225A true GB1503225A (en) 1978-03-08

Family

ID=5923743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34728/75A Expired GB1503225A (en) 1974-08-21 1975-08-21 Device for controlling a fibre-protection flap

Country Status (7)

Country Link
AT (1) AT342825B (en)
CH (1) CH606733A5 (en)
DE (1) DE2440108A1 (en)
FR (1) FR2282283A1 (en)
GB (1) GB1503225A (en)
NL (1) NL7509647A (en)
SE (1) SE7509303L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348468A1 (en) * 2002-03-26 2003-10-01 Werner Wildeboer Fire damper
ES2436506A1 (en) * 2012-06-27 2014-01-02 Madel Air Technical Diffusion, S.A. Mechanism for automatic and manual actuation of firebreak valve, has lever adapting one position in which plate allows rotation shaft and end of lever to be attracted and fixed by electromagnet by inflection of distal arms

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2757775B1 (en) * 1996-12-27 1999-02-19 Panol FIRE-RESISTANT DEVICE FOR VENTILATION DUCT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348468A1 (en) * 2002-03-26 2003-10-01 Werner Wildeboer Fire damper
ES2436506A1 (en) * 2012-06-27 2014-01-02 Madel Air Technical Diffusion, S.A. Mechanism for automatic and manual actuation of firebreak valve, has lever adapting one position in which plate allows rotation shaft and end of lever to be attracted and fixed by electromagnet by inflection of distal arms

Also Published As

Publication number Publication date
ATA645475A (en) 1977-08-15
NL7509647A (en) 1976-02-24
CH606733A5 (en) 1978-11-15
DE2440108A1 (en) 1976-03-04
FR2282283B3 (en) 1978-04-07
FR2282283A1 (en) 1976-03-19
AT342825B (en) 1978-04-25
SE7509303L (en) 1976-02-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee