US3821923A - Smoke vent - Google Patents

Smoke vent Download PDF

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Publication number
US3821923A
US3821923A US00288800A US28880072A US3821923A US 3821923 A US3821923 A US 3821923A US 00288800 A US00288800 A US 00288800A US 28880072 A US28880072 A US 28880072A US 3821923 A US3821923 A US 3821923A
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US
United States
Prior art keywords
leaf
case
smoke
locking device
opening
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 - Lifetime
Application number
US00288800A
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English (en)
Inventor
P Dauge
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
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Publication of US3821923A publication Critical patent/US3821923A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0351—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows
    • E05Y2900/152—Roof windows
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages

Definitions

  • the invention pertains to a smoke vent of the type [52] us. Cl. 98/86, 49/252 comprising a case as support to at least one leaf and, [51] Int. Cl. F23! 13/02 etween said case and said leaf a locking device in- [58] Field of Search 98/86, 42; 49/1, 7,' 8, tended to release said leaf upon detection of excessive 49/252, 216 heat and/or smoke and/or pressure, wherein connecting means are provided between the case and the leaf [56] References Cited such as to ensure the opening of the leaf by gravity UNITED STATES PATENTS v Lyons 49/l following a detection by said locking device.
  • the present invention pertains to a smoke vent for roofs and similar of the type opening automatically upon occurrence of an excess pressure or heat due to a fire or an explosion. Vents of this type have already been proposed since several years. They are generally fitted with a spring and lever instantaneous opening mechanism, controlled by a calibrated fuse or similar and/or by a remote electric or pneumatic control.
  • the object of the present invention is to eliminate those disadvantages providing a vent the opening of which being essentially ensured by the force of gravity.
  • a vent of the type that comprises a case serving as support to at least one leaf and, between said case and said leaf, a locking device intended to release said leaf upon detection of excessive heat, smoke or pressure, wherein connecting means are provided between the case and the leaf such as to ensurethe opening of the leaf by gravity following a detection by said locking device.
  • these connecting means may have different configurations, to ensure the opening of the leaf by simple translation, by simple rotation or by a rotation-translation motion. In each case a suitable shape of the case will be chosen.
  • FIGS. 1 to 3 very schematically show three of the possible embodiments of the invention
  • FIG. 4 is a perspective view of a practical embodiment of the invention.
  • FIG. graphically represents the zone of localisation of the leaf pivoting axis, in a vent according to FIG. 4;
  • FIG. 6 is an end view of a vent according to another embodiment of the invention.
  • a vent according to the invention is of the type including a case 1, having a flange 2 perpendicular to the plane 3 of the roof and, at least one leaf 4, the leaf or leafs being normally held in closed position by a locking device 5 controlled, as known per se, by means for detecting an excessive heat, pressure or smoke. Also as known, this locking device may be equipped with an electric, pneumatic or manual control.
  • the case 1 is conformed in such a way that its upper rim constitutes a slanting supporting surface for the leaf 4, the latter being sash-mounted. It is clear that upon the release of mechanism 5, the leaf 4 will follow the linear trajectory shown in dotted lines on FIG. 1.
  • the leaf is here pivoted in 6 on the part 2 of the case and is provided, near its pivoting axis, with a counterweight 7.
  • the opening will occur with a simple rotation motion.
  • FIG. 3 the leafs are animated with a combined motion of rotation and translation.
  • Two ways of applying this principle according to FIG. 3 are represented more in detail in FIGS. 4 and 5 on one hand and in FIG. 6 on the other.
  • the vent is of the type having two leafs.
  • the flange 2 of the case shows two parallel rectangular walls 2' and two end walls 2" with triangular upper portion.
  • Each of the leafs 4 is provided, at opposite ends, with an ear 8 by which the leaf is connected, by means of a pivot 6, to the corresponding end wall 2" of the case.
  • the tops of end walls 2" are interconnected by means of a profile 9.
  • the face of this profile 9 directed towards the roof can receive one or several locking devices 5.
  • this pivoting axis 6 is important. Referring to the graph of FIG. 5 this pivoting axis, seen in projection, will be located within the hatched zone. The latter is included, beyond their intersection, between the vertical drawn from the center of gravity 6 of the leaf in closed position and theperpendicular to the leafs plane, in its closed position, drawn from the upper point H of the wall 2' of the flange. Such a location of the pivot axis ensures not only the tipping of the leaf towards its open position but also the disengagement of the leaf and the upper rim of the flange wall 2'. Any risk of wedging or friction is thereby eliminated.
  • the case 2 has a shape similar to that of the case according to FIG. 4.
  • each leaf 4 is here connected to the case 2 by means of two rods 10, symmetrically disposed in relation to the transversal median plan of the case. These rods are therefor superposed in the drawing of FIG. 6.
  • Each rod 10 is articulated in a point 11 on the leaf and is pivoted in a point 12, on the corresponding end wall 2" of the case.
  • each rod 10 and the positions of its points of articulation l1 and pivoting 12 are chosen preferably so that, in the drawing, the point 12 be situated on the mediatrix of the segment AB joining the point 12 in closed position (A) of the leaf and that same point in open position (B) and at the intersection (C) of that mediatrix m with a vertical v drawn from (A), or beyond this intersection towards the cases base.
  • each leaf is provided to support and lead each leaf 4.
  • a roller 13 is provided at each end of a wall 2".
  • Each roller 13 is fixed to or pivoted on a support 14 integral with the case and is engaged into a slot 15 provided for this purpose in the corresponding leaf.
  • each leaf is thus constantly supported in four points, which provides for a perfect stability in every position.
  • rods 10 could be made telescopic, which would allow tochose other geometry than the one shown as example.
  • vents are all intended to be mounted on a substantially horizontal roof, it would also be possible to foresee models for slanting and vertical walls.
  • Smoke vent of the type comprising a case serving as support to at least one leaf and, between said case and said leaf, a locking device intended to release said leaf upon a detection of excessive heat and/or smoke and/or pressure, wherein connecting means are provided between the case and the leaf so as to ensure the opening of the leaf by gravity following a detection by said locking device, wherein said connecting means include rods, each articulated in one extremity on the said leaf and pivoted in the other extremity on said case, the axes of articulation on the one hand and the axes of pivoting on the other being aligned and perpendicular to the direction of opening of the leaf, supporting and guiding means for the leaf being provided on the cases lowest side or near to it, and wherein said supporting and guiding means include at least one roller fixed, respectively pivoted on a salient part of the case, and in contact with the leaf.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fire-Detection Mechanisms (AREA)
US00288800A 1971-09-15 1972-09-13 Smoke vent Expired - Lifetime US3821923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE772606A BE772606A (fr) 1971-09-15 1971-09-15 Vantail de securite.

Publications (1)

Publication Number Publication Date
US3821923A true US3821923A (en) 1974-07-02

Family

ID=3858629

Family Applications (1)

Application Number Title Priority Date Filing Date
US00288800A Expired - Lifetime US3821923A (en) 1971-09-15 1972-09-13 Smoke vent

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US (1) US3821923A (fr)
BE (1) BE772606A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341413A (en) * 1978-05-30 1982-07-27 Coachwork Conversions Limited Vehicle body
US6533656B2 (en) 2000-05-24 2003-03-18 Peter H. Hertel Air handling system duct closure and heat trap
US20040142654A1 (en) * 2003-01-08 2004-07-22 Stammer Scott D. Acoustical smoke vent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461944C3 (de) * 1974-12-31 1982-04-01 Robertson GAL Gesellschaft für angewandte Lufttechnik mbH, 4052 Korschenbroich Dachentlüfter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA537427A (fr) * 1957-02-26 L. Urquhart Thornton Ecoutille de toiture
US3516198A (en) * 1969-01-21 1970-06-23 Robert J Lyons Emergency release latch mechanism for smoke hatch
US3596586A (en) * 1970-04-22 1971-08-03 Burt Mfg Co The Emergency venting device
US3601437A (en) * 1970-07-06 1971-08-24 Robert J Lyons Emergency-releasable latch for hatchway door
US3741101A (en) * 1972-02-14 1973-06-26 Exitaire Co Gravity operated ventilator unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA537427A (fr) * 1957-02-26 L. Urquhart Thornton Ecoutille de toiture
US3516198A (en) * 1969-01-21 1970-06-23 Robert J Lyons Emergency release latch mechanism for smoke hatch
US3596586A (en) * 1970-04-22 1971-08-03 Burt Mfg Co The Emergency venting device
US3601437A (en) * 1970-07-06 1971-08-24 Robert J Lyons Emergency-releasable latch for hatchway door
US3741101A (en) * 1972-02-14 1973-06-26 Exitaire Co Gravity operated ventilator unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341413A (en) * 1978-05-30 1982-07-27 Coachwork Conversions Limited Vehicle body
US6533656B2 (en) 2000-05-24 2003-03-18 Peter H. Hertel Air handling system duct closure and heat trap
US20040142654A1 (en) * 2003-01-08 2004-07-22 Stammer Scott D. Acoustical smoke vent

Also Published As

Publication number Publication date
BE772606A (fr) 1972-01-17

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