GB881806A - Improvements in and relating to shutters for fans - Google Patents

Improvements in and relating to shutters for fans

Info

Publication number
GB881806A
GB881806A GB2981158A GB2981158A GB881806A GB 881806 A GB881806 A GB 881806A GB 2981158 A GB2981158 A GB 2981158A GB 2981158 A GB2981158 A GB 2981158A GB 881806 A GB881806 A GB 881806A
Authority
GB
United Kingdom
Prior art keywords
fan
shutter
rotor
apertures
pin
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
GB2981158A
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.)
GEOFFREY RICHARD EGERTON WEAVE
Original Assignee
GEOFFREY RICHARD EGERTON WEAVE
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 GEOFFREY RICHARD EGERTON WEAVE filed Critical GEOFFREY RICHARD EGERTON WEAVE
Priority to GB2981158A priority Critical patent/GB881806A/en
Publication of GB881806A publication Critical patent/GB881806A/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
    • F24F13/105—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers composed of diaphragms or segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
    • 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
    • F24F13/1486—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by bearings, pivots or hinges
    • 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
    • F24F7/007—Ventilation with forced flow
    • F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Ventilation (AREA)

Abstract

881,806. Ventilators. WEAVER, G. R. E. Sept. 14, 1959 [Sept. 17, 1958; May 22, 1959], Nos. 29811/58 and 17405/59. Class 137 [Also in Group XXVI] An automatically controlled hit and miss type ventilator for use with a fan comprises a shutter 7 rotatably driven by the spindle 21 of a motor 19, two matching fan sections 5 supported on a hub 23 and bushing 13 and driven by a lost motion pin and slot connection from the shutter 7 which is resiliently connected to the bushing 13 by a spring 8, and a second shutter 17 also resiliently connected by a spring to the bushing 13 and having a pin and slot driving connection with the fan sections. When rotating in one direction the fan supplies fresh air through one set of apertures and withdraws foul air through another set in which case one shutter has apertures 32 (Fig. 8) which coincide with apertures 26 in the fan rotor when the fan is rotating normally but which move relative to the rotor (because of the pin and slot connection) to close the apertures 26 when the fan slows down or stops. Similarly the apertures 25 in the fan rotor are controlled by the shutter 17. Only a single shutter may be employed in which case it controls all the apertures at one side of the fan and the fan rotor mßy be driven by the motor whilst the shutters are driven from the rotor. The shutters have fins 33 and a light baffle 6 is included. The fan may be adapted for one-way operation by providing a keyhole spring between each shutter and the fan rotor and having a pin and slot connection to limit relative movement between only one shutter and the rotor so that this shutter is open when the fan rotates in one direction but closed in the opposite direction whilst the other shutter since it can move through the full extent of the "keyhole" in both directions is open for both senses of rotation of the fan. Specification 872,472 is referred to.
GB2981158A 1958-09-17 1958-09-17 Improvements in and relating to shutters for fans Expired GB881806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2981158A GB881806A (en) 1958-09-17 1958-09-17 Improvements in and relating to shutters for fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2981158A GB881806A (en) 1958-09-17 1958-09-17 Improvements in and relating to shutters for fans

Publications (1)

Publication Number Publication Date
GB881806A true GB881806A (en) 1961-11-08

Family

ID=10297550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2981158A Expired GB881806A (en) 1958-09-17 1958-09-17 Improvements in and relating to shutters for fans

Country Status (1)

Country Link
GB (1) GB881806A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199897A (en) * 1987-01-15 1988-07-20 Airflow Dev Ltd An extractor fan
EP0640202A1 (en) * 1993-03-12 1995-03-01 F F SEELEY NOMINEES PTY. Ltd Heater attachment for evaporative cooler
US6821091B2 (en) 2002-06-05 2004-11-23 Litex Industries Inc. Securing device
US11644216B1 (en) * 2021-02-01 2023-05-09 Juan Yuniesqui Perez Dynamic register system with an adapter member for oscillating air vents

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199897A (en) * 1987-01-15 1988-07-20 Airflow Dev Ltd An extractor fan
EP0640202A1 (en) * 1993-03-12 1995-03-01 F F SEELEY NOMINEES PTY. Ltd Heater attachment for evaporative cooler
EP0640202A4 (en) * 1993-03-12 1996-01-24 F F Seeley Nomonees Pty Ltd Heater attachment for evaporative cooler.
US6821091B2 (en) 2002-06-05 2004-11-23 Litex Industries Inc. Securing device
US11644216B1 (en) * 2021-02-01 2023-05-09 Juan Yuniesqui Perez Dynamic register system with an adapter member for oscillating air vents

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