GB706388A - Improvements in or relating to dampers for the control of air or other gas - Google Patents

Improvements in or relating to dampers for the control of air or other gas

Info

Publication number
GB706388A
GB706388A GB2689952A GB2689952A GB706388A GB 706388 A GB706388 A GB 706388A GB 2689952 A GB2689952 A GB 2689952A GB 2689952 A GB2689952 A GB 2689952A GB 706388 A GB706388 A GB 706388A
Authority
GB
United Kingdom
Prior art keywords
blades
plate
frame
spindle
air
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
GB2689952A
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.)
RICHARD CRITTALL AND Co L
Original Assignee
RICHARD CRITTALL AND Co L
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 RICHARD CRITTALL AND Co L filed Critical RICHARD CRITTALL AND Co L
Priority to GB2689952A priority Critical patent/GB706388A/en
Publication of GB706388A publication Critical patent/GB706388A/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/165—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with a plurality of closure members

Abstract

706,388. Ventilation. CRITTALL & CO., Ltd., R., and RHODES, F. March 25, 1953 [Oct. 27, 1952], No. 26899/52. Class 137 A damper for controlling the air flowing from the outlet of a duct in a wall, ceiling &c. or for controlling the flow of' air within a duct, comprises blades 6 which are mounted in a sheet metal frame 1, adjacent blades being rotatable in contrary directions so that in all of their adjusted operative positions, the stream of air passing through the blades is not deflected sideways. The blades 6 at each end of the frame abut against end stops 7 in the fully closed position; all of the blades being mounted on spindles 5 supported at each end in bearings in bars 3, 4 fitted along the top and bottom of the frame. Pins 10 fitted to the upper edges of the blades 6 engage in slots 11 alternately placed along each side of the plate 8 so that reciprocation of the plate in its own plane imparts rotational movement to the blades, adjacent blades being rotated in contrary directions. Means for reciprocating the plate 8 includes a screwed spindle 12 which is supported by a channel member 13 attached to the frame 1 and carries square nut 16 having a pin 17 which engages an inclined slot 18 in the plate 8, adjustment being effected by rotating the spindle 12. In a modification the plate 8 is reciprocated by a spindle which is rotatably supported in an angle bracket fixed to the frame 1, one end of the spindle being provided with a disc having a pin which engages a slot in a bracket secured beneath the plate 8. The end stops 7 in this embodiment are omitted.
GB2689952A 1952-10-27 1952-10-27 Improvements in or relating to dampers for the control of air or other gas Expired GB706388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2689952A GB706388A (en) 1952-10-27 1952-10-27 Improvements in or relating to dampers for the control of air or other gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2689952A GB706388A (en) 1952-10-27 1952-10-27 Improvements in or relating to dampers for the control of air or other gas

Publications (1)

Publication Number Publication Date
GB706388A true GB706388A (en) 1954-03-31

Family

ID=10250957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2689952A Expired GB706388A (en) 1952-10-27 1952-10-27 Improvements in or relating to dampers for the control of air or other gas

Country Status (1)

Country Link
GB (1) GB706388A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780983A (en) * 1954-05-12 1957-02-12 Hart & Cooley Mfg Co Volume control for registers
US4241647A (en) * 1979-08-20 1980-12-30 Dayco Corporation Air damper valve
GB2118293A (en) * 1979-01-17 1983-10-26 Actionair Equip Fluid damper
CN114811072A (en) * 2022-06-28 2022-07-29 中国飞机强度研究所 Grid type quick release valve for airplane structure impact test and use method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780983A (en) * 1954-05-12 1957-02-12 Hart & Cooley Mfg Co Volume control for registers
GB2118293A (en) * 1979-01-17 1983-10-26 Actionair Equip Fluid damper
US4241647A (en) * 1979-08-20 1980-12-30 Dayco Corporation Air damper valve
CN114811072A (en) * 2022-06-28 2022-07-29 中国飞机强度研究所 Grid type quick release valve for airplane structure impact test and use method thereof

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