GB851114A - Improvements in fluid flow control means - Google Patents

Improvements in fluid flow control means

Info

Publication number
GB851114A
GB851114A GB2712755A GB2712755A GB851114A GB 851114 A GB851114 A GB 851114A GB 2712755 A GB2712755 A GB 2712755A GB 2712755 A GB2712755 A GB 2712755A GB 851114 A GB851114 A GB 851114A
Authority
GB
United Kingdom
Prior art keywords
duct
blades
slots
levers
pivoted
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
GB2712755A
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.)
Fuel Firing Ltd
Original Assignee
Fuel Firing 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 Fuel Firing Ltd filed Critical Fuel Firing Ltd
Priority to GB2712755A priority Critical patent/GB851114A/en
Publication of GB851114A publication Critical patent/GB851114A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Supply (AREA)
  • Air-Flow Control Members (AREA)

Abstract

851,114. Ventilator dampers. FUEL FIRING Ltd., FARNHAM, R. C., and WEBB, E. F. D. Dec. 21, 1956 [Sept. 22, 1955], No. 27127/55.. Class 137 [Also in Group XXIX] A device for controlling the fiow of fluid in a duct 2 comprises a series of parallel flexible blades 1 each pivoted about an intermediate point in its length and arranged in the fully open position to lie axially in the direction of flow as shown at 26 and means operable externally of the duct for varying the curvature of the blades and for forcing the leading and trailing edges of the blades to follow a guided path so as to present in the fully closed position a blade of S-section. This arrangement permits a progressive opening or closing of the duct without creating turbulence. The leading and trailing edges of the blades 1 are provided with pins 6, 7 respectively which project through arcuate slots 8, in actuating bars 9, 10 into blind arcuate slots 11 in the side walls of the duct. The bars 9, 10 pass through slots in the wall of the duct into housings 14, 15 and are interconnected by a centrally pivoted lever 18. The duct is formed with channels 22 forming abutments 23 for the outermost blades in the closed position of the device. The blades are operated manually or hydraulically from outside the duct by a rod 16 extending through a gland 17 and secured to the bar 9. In a modification, the pins 6, 7 pass through arcuate slots in the walls of the duct into slots in the opposite ends of levers mounted on the pivots 3 externally of the duct. The levers and hence the blades are connected for simultaneous operation by a control rod pivoted to a crank arm on each of the pivots 3. The levers, crank arms and control rod are enclosed in a leak-proof box to prevent the escape of fluid from the duct 1.
GB2712755A 1960-09-01 1960-09-01 Improvements in fluid flow control means Expired GB851114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2712755A GB851114A (en) 1960-09-01 1960-09-01 Improvements in fluid flow control means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2712755A GB851114A (en) 1960-09-01 1960-09-01 Improvements in fluid flow control means

Publications (1)

Publication Number Publication Date
GB851114A true GB851114A (en) 1960-10-12

Family

ID=10254659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2712755A Expired GB851114A (en) 1960-09-01 1960-09-01 Improvements in fluid flow control means

Country Status (1)

Country Link
GB (1) GB851114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337039A (en) * 1998-05-08 1999-11-10 Keith Andrew Gent A tractor drawn web dispenser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337039A (en) * 1998-05-08 1999-11-10 Keith Andrew Gent A tractor drawn web dispenser
GB2337039B (en) * 1998-05-08 2002-04-24 Keith Andrew Gent Tractor-mountable dispenser for a roll of material

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