GB208373A - Improvements in ventilators - Google Patents

Improvements in ventilators

Info

Publication number
GB208373A
GB208373A GB3376722A GB3376722A GB208373A GB 208373 A GB208373 A GB 208373A GB 3376722 A GB3376722 A GB 3376722A GB 3376722 A GB3376722 A GB 3376722A GB 208373 A GB208373 A GB 208373A
Authority
GB
United Kingdom
Prior art keywords
flanges
frame
bar
louvers
top
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
GB3376722A
Original Assignee
Andrew Lawrence Riker
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 Andrew Lawrence Riker filed Critical Andrew Lawrence Riker
Priority to GB3376722A priority Critical patent/GB208373A/en
Publication of GB208373A publication Critical patent/GB208373A/en
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15Air-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

Abstract

208,373. Riker, A. L. Dec. 11, 1922. Ventilators.-A louver ventilator, applicable to transoms, doorways, windows, panels, &c., and arranged to prevent vision through it, comprises a series of louvers, each consisting of an upright member 20 having extensions 21 on opposite edges, pivoted in a frame which is built up of plates of channel section, the flanges 16 of the side members 12, 13 terminating short of the ends of the members while the flanges 14, 15 of the top and bottom plates 10, 11 extend the full width of the frame. The frame members are secured together by the provision, on the ends of the sides 12, 13, of flanges 17 having holes through which the metal of the top and bottom plates is drawn and spread, as shown at 19, Fig. 8. In a modified form of frame, Fig. 9, the flanges 49 of the side members extend the full length and the ends are offset at 50 to engage within the flanges 51 of the top and bottom plates, the securing means comprising rivets 52 passing through flanges 51, offset portions 50 and a bush 53. In this case slots 54 are formed in the parts 50 to allow adjustability of the sides of the frame with respect to the top and bottom plates. The louvers 20 are provided on their upper and lower edges with ears 22, 23 which are pivoted in the respective frame members 10, 11, the ears 23 being, in addition, pivoted to an operating bar 27 adapted to slide on the bottom 11 of the frame and actuated by a spindle 29 having a crank 30 engaging a bent portion 32 of the bar 27. This bar is prevented from rising by a rod 34, Fig. 2, and the rear end of the spindle 29 is reduced at 37 to allow it to be moved slightly in the direction of its length by the slight front to rear motion of the bar 27. Fixed louvers 41, 42 are provided at tho sides of the device, the end 43 of the bar 27 engaging with the louver 42 to limit the extent to which the louvers 20 can be opened.
GB3376722A 1922-12-11 1922-12-11 Improvements in ventilators Expired GB208373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3376722A GB208373A (en) 1922-12-11 1922-12-11 Improvements in ventilators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3376722A GB208373A (en) 1922-12-11 1922-12-11 Improvements in ventilators

Publications (1)

Publication Number Publication Date
GB208373A true GB208373A (en) 1923-12-20

Family

ID=10357174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3376722A Expired GB208373A (en) 1922-12-11 1922-12-11 Improvements in ventilators

Country Status (1)

Country Link
GB (1) GB208373A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834280A (en) * 1954-02-10 1958-05-13 Robertson Co H H Louver
US9465261B2 (en) 2011-10-28 2016-10-11 Polyic Gmbh & Co. Kg Display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834280A (en) * 1954-02-10 1958-05-13 Robertson Co H H Louver
US9465261B2 (en) 2011-10-28 2016-10-11 Polyic Gmbh & Co. Kg Display device

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