GB2123871A - Greenhouse roof vent panel - Google Patents

Greenhouse roof vent panel Download PDF

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Publication number
GB2123871A
GB2123871A GB08221197A GB8221197A GB2123871A GB 2123871 A GB2123871 A GB 2123871A GB 08221197 A GB08221197 A GB 08221197A GB 8221197 A GB8221197 A GB 8221197A GB 2123871 A GB2123871 A GB 2123871A
Authority
GB
United Kingdom
Prior art keywords
panel
vent
greenhouse
frame
ofthe
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.)
Withdrawn
Application number
GB08221197A
Inventor
Raymond Broadhurst
Kieth Sylvester Blondel
Richard Charles Revell
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.)
Clovis Lande
Original Assignee
Clovis Lande
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 Clovis Lande filed Critical Clovis Lande
Priority to GB08221197A priority Critical patent/GB2123871A/en
Priority to PT75722A priority patent/PT75722B/en
Publication of GB2123871A publication Critical patent/GB2123871A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)

Abstract

The vent panel 15 is movable on wheels in a track 18 between a position in which the vent is fully open. Track 18 is mounted on a frame member 12 of the greenhouse. Movement of the vent is controlled by a cord-and-pulley arrangement. <IMAGE>

Description

SPECIFICATION Greenhouse vent panel This invention is concerned with a vent panel for greenhouses, particularly those greenhouses made of plastics sheets secured over a frame.
In traditional glass greenhouses the provision of vents to control the temperature has not posed a problem as it is simple to incorporate in the structure conventionalwindowsorthelike. In recentyears, however, there has been increasing use of greenhouses consisting of a supporting framework over which is secured large plastics sheets and the provision ofsuitable ventilating means has proved rather more difficult.
It is an object ofthe present invention to obviate or mitigate this difficulty.
The present invention is a greenhouse vent panel comprising a frame, wheels mounted on the frame, a track engaged by said wheel and extending across the roof ofthe greenhouse so that the panel can move between vent closed and vent open positions, and meansforcontrollingthe movement ofthe panel between said positions.
An embodiment ofthe present invention will now be described, by way of example, with reference to the accompanying drawings, in which Fig. is a partial side elevation of a greenhouse frame showing in its closed position a vent panel according to the present invention; Fig. 2 is an enlarged view of part of Fig. 1; and Fig. 3 shows further detail of the vent panel of Fig. 1.
Referring now to Fig. la a greenhouse comprises a frame of stanchions 10 and trusses 11 spanned by hoops 12. In a common form ofgreenhouse plastics sheets extend across the hoops 12 from one side ofthe greenhouse to the other but in this embodiment a vent panel 15 is incorporated at the crown ofthe roof, so thatthe sheets extend up the roof only to the edges 16 and 17 of the panel in its vent closed position as shown in Fig.1.
The panel extends along the roof at leastthe distance between adjacent half hoops and is movable in tracks 18 which extend from the edge 17to the point 19, i.e. a distance approximately twice the width of the panel 15. The tracks 18 are, of course, mounted on the half hoops.
The detailed construction at the edge 17 of the panel is shown in Fig.3.The hoop 12 mounts a securing strip 25 to which the plastics sheet at that side of the roof is secured,the strip 25 being typically as disclosed in U.K. Patent Specification No. 1,409,061.
The vent panel 15 comprises a frame covered at the top by a plastics sheet secured in further securing strips 26 at either side ofthe frame. The frame is mounted on wheels 27 at least at each side of the frame and the wheels run in the track 18 so that the framemoves easily between the open and closed positions.
Also mounted on the frame is a cord tie box 30 which extends to belowthe level ofthe hoop 12 and to which is attached the ends of a cord 31 which extends round pulleys 32 and 33 fixed to the hoop 12 at either side of the vent opening. The cord 31 is taken down to the floor of the greenhouse at any convenient point and can then be used to control the position ofthe panel. As seen best in Fig. 3, the pulleys 32 and 33 are double pulleys, the lower pulleys carrying the cord 35 from the other side ofthe panel 15.
The construction of the track 18 is best shown in Fig.
3 where it can be seen that the wheels 27 are arranged in pairs each having its own independentsubstantially closed trackwithin the track 18.
In larger sizes of vent panel the cords 31 may well be steel cables.
While the invention has been described in relation to a greenhouse having a flexible covering, there is no reason why it should not be used in a greenhouse having a rigid covering.
1. A greenhouse vent panel comprising a frame, wheels mounted on the frame, a track engaged by said wheel and extending across the roofofthegreenhouse so that the panel can move between vent closed and vent open positions, and meansforcontrolling the movement of the panel between said positions.
2. A greenhouse vent panel as claimed in claim 1, in which said means comprises a cord secured to the panel and passing around fixed pulleys.
3. A greenhouse vent panel substantially as hereinbefore described with reference to, and as shown in,theaccompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    SPECIFICATION Greenhouse vent panel This invention is concerned with a vent panel for greenhouses, particularly those greenhouses made of plastics sheets secured over a frame.
    In traditional glass greenhouses the provision of vents to control the temperature has not posed a problem as it is simple to incorporate in the structure conventionalwindowsorthelike. In recentyears, however, there has been increasing use of greenhouses consisting of a supporting framework over which is secured large plastics sheets and the provision ofsuitable ventilating means has proved rather more difficult.
    It is an object ofthe present invention to obviate or mitigate this difficulty.
    The present invention is a greenhouse vent panel comprising a frame, wheels mounted on the frame, a track engaged by said wheel and extending across the roof ofthe greenhouse so that the panel can move between vent closed and vent open positions, and meansforcontrollingthe movement ofthe panel between said positions.
    An embodiment ofthe present invention will now be described, by way of example, with reference to the accompanying drawings, in which Fig. is a partial side elevation of a greenhouse frame showing in its closed position a vent panel according to the present invention; Fig.
  2. 2 is an enlarged view of part of Fig. 1; and Fig. 3 shows further detail of the vent panel of Fig. 1.
    Referring now to Fig. la a greenhouse comprises a frame of stanchions 10 and trusses 11 spanned by hoops 12. In a common form ofgreenhouse plastics sheets extend across the hoops 12 from one side ofthe greenhouse to the other but in this embodiment a vent panel 15 is incorporated at the crown ofthe roof, so thatthe sheets extend up the roof only to the edges 16 and 17 of the panel in its vent closed position as shown in Fig.1.
    The panel extends along the roof at leastthe distance between adjacent half hoops and is movable in tracks 18 which extend from the edge 17to the point 19, i.e. a distance approximately twice the width of the panel 15. The tracks 18 are, of course, mounted on the half hoops.
    The detailed construction at the edge 17 of the panel is shown in Fig.3.The hoop 12 mounts a securing strip 25 to which the plastics sheet at that side of the roof is secured,the strip 25 being typically as disclosed in U.K. Patent Specification No. 1,409,061.
    The vent panel 15 comprises a frame covered at the top by a plastics sheet secured in further securing strips 26 at either side ofthe frame. The frame is mounted on wheels 27 at least at each side of the frame and the wheels run in the track 18 so that the framemoves easily between the open and closed positions.
    Also mounted on the frame is a cord tie box 30 which extends to belowthe level ofthe hoop 12 and to which is attached the ends of a cord 31 which extends round pulleys 32 and 33 fixed to the hoop 12 at either side of the vent opening. The cord 31 is taken down to the floor of the greenhouse at any convenient point and can then be used to control the position ofthe panel. As seen best in Fig. 3, the pulleys 32 and 33 are double pulleys, the lower pulleys carrying the cord 35 from the other side ofthe panel 15.
    The construction of the track 18 is best shown in Fig.
  3. 3. A greenhouse vent panel substantially as hereinbefore described with reference to, and as shown in,theaccompanying drawings.
    3 where it can be seen that the wheels 27 are arranged in pairs each having its own independentsubstantially closed trackwithin the track 18.
    In larger sizes of vent panel the cords 31 may well be steel cables.
    While the invention has been described in relation to a greenhouse having a flexible covering, there is no reason why it should not be used in a greenhouse having a rigid covering.
    1. A greenhouse vent panel comprising a frame, wheels mounted on the frame, a track engaged by said wheel and extending across the roofofthegreenhouse so that the panel can move between vent closed and vent open positions, and meansforcontrolling the movement of the panel between said positions.
    2. A greenhouse vent panel as claimed in claim 1, in which said means comprises a cord secured to the panel and passing around fixed pulleys.
GB08221197A 1982-07-22 1982-07-22 Greenhouse roof vent panel Withdrawn GB2123871A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08221197A GB2123871A (en) 1982-07-22 1982-07-22 Greenhouse roof vent panel
PT75722A PT75722B (en) 1982-07-22 1982-10-22 Greenhouse vent panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08221197A GB2123871A (en) 1982-07-22 1982-07-22 Greenhouse roof vent panel

Publications (1)

Publication Number Publication Date
GB2123871A true GB2123871A (en) 1984-02-08

Family

ID=10531832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08221197A Withdrawn GB2123871A (en) 1982-07-22 1982-07-22 Greenhouse roof vent panel

Country Status (2)

Country Link
GB (1) GB2123871A (en)
PT (1) PT75722B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354894A (en) * 1930-05-29 1931-08-20 Wallace Foulds Improvements in or relating to windows, ventilators and the like for sectional and other buildings and structures
GB598356A (en) * 1944-07-06 1948-02-17 Johannes Negrijn Improvements in greenhouses and like structures
GB1224427A (en) * 1968-02-27 1971-03-10 Ickes Braun Glasshouses Inc Movable roof structure
GB1452984A (en) * 1973-02-02 1976-10-20 V Akademia Selskokhozyaistvenn Greenhouse post tensioning load cell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354894A (en) * 1930-05-29 1931-08-20 Wallace Foulds Improvements in or relating to windows, ventilators and the like for sectional and other buildings and structures
GB598356A (en) * 1944-07-06 1948-02-17 Johannes Negrijn Improvements in greenhouses and like structures
GB1224427A (en) * 1968-02-27 1971-03-10 Ickes Braun Glasshouses Inc Movable roof structure
GB1452984A (en) * 1973-02-02 1976-10-20 V Akademia Selskokhozyaistvenn Greenhouse post tensioning load cell

Also Published As

Publication number Publication date
PT75722B (en) 1984-12-05
PT75722A (en) 1982-11-01

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)