GB897172A - Improvements in, or relating to, ventilators - Google Patents

Improvements in, or relating to, ventilators

Info

Publication number
GB897172A
GB897172A GB665357A GB665357A GB897172A GB 897172 A GB897172 A GB 897172A GB 665357 A GB665357 A GB 665357A GB 665357 A GB665357 A GB 665357A GB 897172 A GB897172 A GB 897172A
Authority
GB
United Kingdom
Prior art keywords
shutter
shutters
master
slave
opening
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
GB665357A
Inventor
John Francis Simmons
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.)
HILLS WEST BROMWICH Ltd
Original Assignee
HILLS WEST BROMWICH 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 HILLS WEST BROMWICH Ltd filed Critical HILLS WEST BROMWICH Ltd
Priority to GB665357A priority Critical patent/GB897172A/en
Publication of GB897172A publication Critical patent/GB897172A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

897,172. Ventilators. HILLS (WEST BROMWICH) Ltd. May 28, 1958 [Feb. 28, 1957], No. 6653/57. Class 137 A ventilator in which a master shutter and a number of slave shutters are operated together by a single operating mechanism comprises a master shutter located at one end of a ventilator opening and a number of slave shutters, each shutter being provided with projections from one edge thereof and being pivoted about an axis outwardly of an opening in the cladding of a building, the axes passing through the projections which extend towards the same end of the ventilator, and an operating arm fixed rigidly to the master shutter, extending into the interior of the building and connected to a shutter operating mechanism. As shown, a master shutter 2 has two depending flanges 13, 14 connected to an operating arm 15 which is pivoted to an operating mechanism comprising a chain wheel 27, a thread 21, a nut 20 and an arm 19. A number of slave shutters 3 are pivotally connected to a bar 11 by frames 9, 10, the master shutter also being connected to the bar 11 so that the opening of the master shutter causes opening of the slave shutters, all the shutters pivoting about axes 4 situated within the ventilator opening In the closed position the free end of each shutter overlaps the pivoted end of the next shutter. In a modification, Fig. 3 (not shown) a hydraulic piston moves the master shutter and a rod to which the slave shutters are connected.
GB665357A 1957-02-28 1957-02-28 Improvements in, or relating to, ventilators Expired GB897172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB665357A GB897172A (en) 1957-02-28 1957-02-28 Improvements in, or relating to, ventilators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB665357A GB897172A (en) 1957-02-28 1957-02-28 Improvements in, or relating to, ventilators

Publications (1)

Publication Number Publication Date
GB897172A true GB897172A (en) 1962-05-23

Family

ID=9818354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB665357A Expired GB897172A (en) 1957-02-28 1957-02-28 Improvements in, or relating to, ventilators

Country Status (1)

Country Link
GB (1) GB897172A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306210A (en) * 1991-08-15 1994-04-26 Smit Dirk V Z Louvre type roof structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306210A (en) * 1991-08-15 1994-04-26 Smit Dirk V Z Louvre type roof structures

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