GB418748A - Improvements in or relating to methods of and apparatus for ventilating enclosures - Google Patents

Improvements in or relating to methods of and apparatus for ventilating enclosures

Info

Publication number
GB418748A
GB418748A GB12443/33A GB1244333A GB418748A GB 418748 A GB418748 A GB 418748A GB 12443/33 A GB12443/33 A GB 12443/33A GB 1244333 A GB1244333 A GB 1244333A GB 418748 A GB418748 A GB 418748A
Authority
GB
United Kingdom
Prior art keywords
pressure
duct
fan
motor
enclosures
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
GB12443/33A
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.)
Haden Drysys International Ltd
Original Assignee
Haden Drysys International 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 Haden Drysys International Ltd filed Critical Haden Drysys International Ltd
Priority to GB12443/33A priority Critical patent/GB418748A/en
Publication of GB418748A publication Critical patent/GB418748A/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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catching Or Destruction (AREA)

Abstract

418,748. Controlling ventilation. CARRIER ENGINEERING CO., Ltd., and JONES, J. S., 24, Buckingham Gate, London. April 28, 1933, No. 12443. [Class 137.] A method of ventilating a number of enclosures 1, 2, each having an independent air control 6, 7 consists in employing a main air duct 5 of relatively large cross-section provided with a fan 8, the speed of which is varied according to the pressure in the duct 5, so that the amount of air circulated through any enclosure can be altered without affecting the amount passing through the other enclosures. The variations of pressure to the duct 5 are amplified by a bellows 13, rocker arm 14, leak port 16, and fluid connection 19 to two pressure switches 20, 21 which control a servo-motor 22 and reduction gear 25 rotating brushes 23 on the motor 9 driving the fan 8. Thus on increase of pressure in the duct 5, pressure switch 20 starts rotation of the servo-motor 22 in one direction to vary the fan speed switch 21 operating on reduction of pressure. The switches 20 and 21 operate at slightly different pressures to prevent " hunting " of the fan. The apparatus is applied to the extraction of air containing evaporated solvents from machines, as well as to ventilating rooms.
GB12443/33A 1933-04-28 1933-04-28 Improvements in or relating to methods of and apparatus for ventilating enclosures Expired GB418748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12443/33A GB418748A (en) 1933-04-28 1933-04-28 Improvements in or relating to methods of and apparatus for ventilating enclosures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12443/33A GB418748A (en) 1933-04-28 1933-04-28 Improvements in or relating to methods of and apparatus for ventilating enclosures

Publications (1)

Publication Number Publication Date
GB418748A true GB418748A (en) 1934-10-29

Family

ID=10004693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12443/33A Expired GB418748A (en) 1933-04-28 1933-04-28 Improvements in or relating to methods of and apparatus for ventilating enclosures

Country Status (1)

Country Link
GB (1) GB418748A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424344A (en) * 1943-05-27 1947-07-22 Westinghouse Electric Corp Self-cooled rectifier
US3691931A (en) * 1971-01-19 1972-09-19 Luftkonditionering Ab Device for forced evacuation of air from kitchens
FR2505940A1 (en) * 1981-05-18 1982-11-19 Ventilation Indle Miniere Circulation fan controller for cooking installation - uses pressure gauges to detect vacuum levels in heating ducts and two switch relay controlling supply to fan motor
US4363236A (en) * 1980-04-28 1982-12-14 Meyers Harry W Method and apparatus for detecting leaks in a structure
GB2165937A (en) * 1982-06-30 1986-04-23 Kubota Trane Ltd Fluid flowmeter of the karman vortex detecting type and air conditioning system
US5860858A (en) * 1997-12-22 1999-01-19 Wettergren; Ola Air duct booster fan and control device therefor
ES2241438A1 (en) * 2003-06-16 2005-10-16 Portinox, S.A. Device for extraction of smoke using individual collector bell, has pulsers formed in superior part of main conductor, and unit extractor provided with motor, filters and units for controlling power of elements of unit extractor
EP1921199A2 (en) * 2006-11-08 2008-05-14 LG Electronics Inc. Exhaust structure from dryer in apartment building
EP1921201A2 (en) * 2006-11-08 2008-05-14 LG Electronics Inc. Exhaust structure for clothes dryer in apartment building

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424344A (en) * 1943-05-27 1947-07-22 Westinghouse Electric Corp Self-cooled rectifier
US3691931A (en) * 1971-01-19 1972-09-19 Luftkonditionering Ab Device for forced evacuation of air from kitchens
US4363236A (en) * 1980-04-28 1982-12-14 Meyers Harry W Method and apparatus for detecting leaks in a structure
FR2505940A1 (en) * 1981-05-18 1982-11-19 Ventilation Indle Miniere Circulation fan controller for cooking installation - uses pressure gauges to detect vacuum levels in heating ducts and two switch relay controlling supply to fan motor
GB2165937A (en) * 1982-06-30 1986-04-23 Kubota Trane Ltd Fluid flowmeter of the karman vortex detecting type and air conditioning system
US5860858A (en) * 1997-12-22 1999-01-19 Wettergren; Ola Air duct booster fan and control device therefor
ES2241438A1 (en) * 2003-06-16 2005-10-16 Portinox, S.A. Device for extraction of smoke using individual collector bell, has pulsers formed in superior part of main conductor, and unit extractor provided with motor, filters and units for controlling power of elements of unit extractor
EP1921199A2 (en) * 2006-11-08 2008-05-14 LG Electronics Inc. Exhaust structure from dryer in apartment building
EP1921201A2 (en) * 2006-11-08 2008-05-14 LG Electronics Inc. Exhaust structure for clothes dryer in apartment building
EP1921199A3 (en) * 2006-11-08 2010-07-14 LG Electronics Inc. Exhaust structure from dryer in apartment building
EP1921201A3 (en) * 2006-11-08 2010-07-21 LG Electronics Inc. Exhaust structure for clothes dryer in apartment building
US8024871B2 (en) 2006-11-08 2011-09-27 Lg Electronics Inc. Exhaust structure for clothes dryer in apartment building

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