GB251714A - Improvements in regulating appliances for use in ventilation systems - Google Patents

Improvements in regulating appliances for use in ventilation systems

Info

Publication number
GB251714A
GB251714A GB465425A GB465425A GB251714A GB 251714 A GB251714 A GB 251714A GB 465425 A GB465425 A GB 465425A GB 465425 A GB465425 A GB 465425A GB 251714 A GB251714 A GB 251714A
Authority
GB
United Kingdom
Prior art keywords
grid
casing
inner casing
trunk
fitted
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
GB465425A
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
Priority to GB465425A priority Critical patent/GB251714A/en
Publication of GB251714A publication Critical patent/GB251714A/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

Abstract

251,714. Preston, J. R. Feb. 19, 1925. Ventilators; valves and valve apparatus, actuating. -A ventilator for fitting into a shaft, trunk &c. of a ventilating system comprises an inner casing 2 provided at its top with a grid or grating 3, and a coaxial sleeve 1, the casing and sleeve having one or more inlet ports 6, 7 adapted to be brought into or out of register by relative movement between the two parts. The grid 3 may be integral with the casing, or it may be separate and secured by screws, or according to a further modification the grid and casing may be screw threaded for engagement. Both casings are usually cylindrical and the inner casing is adapted to be rotated. A perforated removable screen 8 is fitted in the inner casing 2. A dome may be adustably mounted on the grid by means of a screw. The appliance is fitted in a wall or floor so that the port 6 is in the path of the flow of air in the shaft or trunk.
GB465425A 1925-02-19 1925-02-19 Improvements in regulating appliances for use in ventilation systems Expired GB251714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB465425A GB251714A (en) 1925-02-19 1925-02-19 Improvements in regulating appliances for use in ventilation systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB465425A GB251714A (en) 1925-02-19 1925-02-19 Improvements in regulating appliances for use in ventilation systems

Publications (1)

Publication Number Publication Date
GB251714A true GB251714A (en) 1926-05-13

Family

ID=9781268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB465425A Expired GB251714A (en) 1925-02-19 1925-02-19 Improvements in regulating appliances for use in ventilation systems

Country Status (1)

Country Link
GB (1) GB251714A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3851757A1 (en) * 2020-01-16 2021-07-21 Prado Europe B.V. Adjustable valve for an air duct in a ventilation system
WO2021144470A1 (en) 2020-01-16 2021-07-22 Prado Europe Bv Valve assembly for an air duct
WO2022074076A1 (en) 2020-10-06 2022-04-14 Prado Europe Bv Valve assembly for an air duct

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3851757A1 (en) * 2020-01-16 2021-07-21 Prado Europe B.V. Adjustable valve for an air duct in a ventilation system
WO2021144470A1 (en) 2020-01-16 2021-07-22 Prado Europe Bv Valve assembly for an air duct
BE1027969A1 (en) 2020-01-16 2021-08-02 Prado Europe Bv VALVE ASSEMBLY FOR AN AIR DUCT IN A VENTILATION SYSTEM
BE1027968B1 (en) * 2020-01-16 2022-02-08 Prado Europe Bv ADJUSTABLE VALVE FOR AN AIR DUCT IN A VENTILATION SYSTEM
WO2022074076A1 (en) 2020-10-06 2022-04-14 Prado Europe Bv Valve assembly for an air duct

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