US3735530A - Device for opening a skylight - Google Patents

Device for opening a skylight Download PDF

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Publication number
US3735530A
US3735530A US00123287A US3735530DA US3735530A US 3735530 A US3735530 A US 3735530A US 00123287 A US00123287 A US 00123287A US 3735530D A US3735530D A US 3735530DA US 3735530 A US3735530 A US 3735530A
Authority
US
United States
Prior art keywords
lever
skylight
opening
spring
leaf portion
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
US00123287A
Other languages
English (en)
Inventor
P Bogaert
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.)
VIC CHEMICALS Inc
Original Assignee
VIC CHEMICALS Inc
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 VIC CHEMICALS Inc filed Critical VIC CHEMICALS Inc
Application granted granted Critical
Publication of US3735530A publication Critical patent/US3735530A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04D13/0352—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis the parts being of domed or pyramidal shape
    • 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
    • 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

  • said mechanism due to the simplicity thereof, may be fitted to a skylight frame, on very narrow attachment surfaces.
  • the opening device is characterized essentially by being comprised of a lever attached to a pivot point on the skylight frame casing and which is to bear at one end in a guide on the leaf portion, while at the other end said lever is acted upon by a spring attached to the casing upper portion, the lever end on which the spring acts being on the one hand spaced from that axis passing through the lever bearing point on the casing and the pivot point, by such a distance that the leverage thus provided relative to the pivot point be long enough to cause the starting impulse, and on the other hand spaced from the pivot point by such a distance that during the rotating time and right from the opening start, the decreasing force of the spring returning to the rest position thereof be compensated by an increase of the leverage due to the rotating, thus retaining in any intermediate position of the skylight a substantially constant opening force up to some predetermine position.
  • FIG. 1 is perspective view of a device according to the invention, used as automatic opening device in case of fire.
  • FIG. 1A shows the device of FIG. 1 with the skylight in an open position.
  • FIG. 2 shown only the lever arranged in such a way as to be adjustable.
  • a skylight frame 1 is comprised of a casing 2, of very narrow shape, and of a leaf or opening portion 3, a lever 4 being attached to the casing 2 in a pivot point 5 and being cranked so as to form an arm 6 which is hinged to the pivot point and bears in a slide 7 on the leaf 3, and an arm 8 which is also hinged to the pivot point 5 of the arm 6 and the end 9 of which is acted upon by a spring 10 which is attached on the other hand to the casing 2, in a point 11 which is located as near as possible to the leaf.
  • a fusible reatining device 12 is provided to retain the leaf in engagement with the casing by attachment means 13,13 which allow a more or less strong clamping.
  • the spring 1 10 acts on the end 9 of the arm 8 and because the lever is sufficiently cranked, with a leverage 14, to generate such a starting impulse that the leaf swings about as shown by arrow 15, eventually coming to rest in the open position shown in FIG. 1A.
  • the leverage 14 will first increase due to rotating and then decrease, while the spring being less spanned will have a progressively decreasing force.
  • the angle a between the arms 6 and 8 of lever 4 and on the other hand, the length of arm 8 it is possible to obtain a substantially constant force from the startin moment of the opening up to a position which corresponds approximately to five-sixths of the complete opening, said force decreasing thereafter very rapidly.
  • the spring 10 acts as a resilient buffer by tending to prevent the leaf portion from rotating past said position.
  • the preferred dimensions are as follows the pivot point 5 lies at a distance equal to the third of the skylight width from the frame swinging axis, the angle a has an optimum value of and the arm 8 corresponds approximately to 38 percent of the total length of lever 4.
  • angle a should remain between a value of to obtain a large enough starting force, and 115, said last limitation being fixed to insure a suitable opening of the skylight.
  • the slanting of arm 8 relative to arm 6 of lever 4 is made adjustable for instance by means of a gusset I6 integral with the arm 6 and to which is attached the arm 8; moreover, the attachment points 17 of the spring on the arm 8 are also adjustable within limits and thus it is possible to select according to the spring power and the required original force, the position of each said elements.
  • a roller 18 may be attached in various locations on the lever arm 6, so as to make the skylight opening adjustable.
  • a mechanism for opening a skylight including a frame casing, a leaf portion hinged thereto, and a guide on the leaf portion, comprising:
  • crank lever pivotally attached to a point on the frame casing and having a first end bearing in the leaf portion guide
  • crank lever axes is approximately and the pivot point is located approximately 38 percent, with respect to the total length of the crank lever, from the second end of the lever.
  • a mechanism as claimed in claim 1 wherein the lever comprises two arms angularly adjustable one relative to the other, the ends of one arm having a plurality of spring attachment points and the end of the other arm having a plurality of guide bearing points.
  • a mechanism as claimed in claim 1 wherein a) the skylight is retained in closed condition by a fusible device, and b) the distances between the pivot point and each end of the lever are such that the melting of the fusible device causes the immediate opening of the leaf portion with a substantially constant force up to approximately five-sixth of the rotational travel of the leaf portion, said force decreasing thereafter very rapidly to finally become zero when the spring has returned to its rest position, said spring then forming a resilient buffer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Basic Packing Technique (AREA)
  • Catching Or Destruction (AREA)
  • Binders And Loading Units For Sheaves (AREA)
US00123287A 1970-03-12 1971-03-11 Device for opening a skylight Expired - Lifetime US3735530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE86328 1970-03-12

Publications (1)

Publication Number Publication Date
US3735530A true US3735530A (en) 1973-05-29

Family

ID=3841330

Family Applications (1)

Application Number Title Priority Date Filing Date
US00123287A Expired - Lifetime US3735530A (en) 1970-03-12 1971-03-11 Device for opening a skylight

Country Status (12)

Country Link
US (1) US3735530A (es)
AT (1) AT310033B (es)
AU (1) AU2633171A (es)
CA (1) CA931593A (es)
CH (1) CH540416A (es)
DE (1) DE2111783A1 (es)
ES (1) ES197004Y (es)
FR (1) FR2084417A5 (es)
LU (1) LU62772A1 (es)
NL (1) NL7103096A (es)
SE (1) SE368251B (es)
ZA (1) ZA711513B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11946303B2 (en) 2019-02-26 2024-04-02 Gdx, Llc Fixture for venting a roof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190713606A (en) * 1907-06-12 1907-11-28 Stephane Remontet Improvements in Automatic Door Closing Devices.
US1716394A (en) * 1927-12-02 1929-06-11 El Paso Sash & Door Co Door for kitchen cabinets
US1975701A (en) * 1933-12-26 1934-10-02 Poos Joseph Automatic door or lid lift
GB655214A (en) * 1948-08-11 1951-07-11 Alfred Leonard Vaughan Improvements in closure devices for doors, gates and the like
US2565202A (en) * 1947-07-26 1951-08-21 Richard A Christison Door lifting apparatus for grain pits and the like
FR1419272A (fr) * 1964-12-30 1965-11-26 Appareil compensateur de manoeuvre de portes de camions qui rabattues servent de plan incliné de chargement
US3251158A (en) * 1963-06-17 1966-05-17 Plastic Products Of Texas Inc Automatic roof vent

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190713606A (en) * 1907-06-12 1907-11-28 Stephane Remontet Improvements in Automatic Door Closing Devices.
US1716394A (en) * 1927-12-02 1929-06-11 El Paso Sash & Door Co Door for kitchen cabinets
US1975701A (en) * 1933-12-26 1934-10-02 Poos Joseph Automatic door or lid lift
US2565202A (en) * 1947-07-26 1951-08-21 Richard A Christison Door lifting apparatus for grain pits and the like
GB655214A (en) * 1948-08-11 1951-07-11 Alfred Leonard Vaughan Improvements in closure devices for doors, gates and the like
US3251158A (en) * 1963-06-17 1966-05-17 Plastic Products Of Texas Inc Automatic roof vent
FR1419272A (fr) * 1964-12-30 1965-11-26 Appareil compensateur de manoeuvre de portes de camions qui rabattues servent de plan incliné de chargement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11946303B2 (en) 2019-02-26 2024-04-02 Gdx, Llc Fixture for venting a roof

Also Published As

Publication number Publication date
ZA711513B (en) 1971-11-24
LU62772A1 (es) 1971-08-23
SE368251B (es) 1974-06-24
FR2084417A5 (es) 1971-12-17
DE2111783A1 (de) 1972-08-17
CH540416A (fr) 1973-08-15
ES197004Y (es) 1975-08-16
ES197004U (es) 1975-04-01
AU2633171A (en) 1972-09-14
NL7103096A (es) 1971-09-14
CA931593A (en) 1973-08-07
AT310033B (de) 1973-09-10

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