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GB1280921A - Emergency-releasable hold-down mechanism for hinged cover of a hatchway - Google Patents

Emergency-releasable hold-down mechanism for hinged cover of a hatchway

Info

Publication number
GB1280921A
GB1280921A GB1318670A GB1318670A GB1280921A GB 1280921 A GB1280921 A GB 1280921A GB 1318670 A GB1318670 A GB 1318670A GB 1318670 A GB1318670 A GB 1318670A GB 1280921 A GB1280921 A GB 1280921A
Authority
GB
United Kingdom
Prior art keywords
emergency
cover
leg
releasable
cable
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
GB1318670A
Inventor
Robert Joseph Lyons
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
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 Individual filed Critical Individual
Publication of GB1280921A publication Critical patent/GB1280921A/en
Expired legal-status Critical Current

Links

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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y10T292/202—Hatch fastener

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)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

1280921 Fire operated # ventilators R J LYONS 19 March 1970 [30 June 1969] 13186/ 70 Heading A5A [Also in Divisions E2 and F4] An emergency-releasable hold-down mechanism for a roof hatch cover comprises a slide ring on the short leg of a crook-shaped bar 32 attached at the far end of its longer leg by emergency-releasible means to the underside of the cover, which is maintained by cable 60 in its closed position while the slide ring remains on the leg but which flies open when the ring slides off on activation of the emergency-releasable means. In Fig. 2, slide ring 62 supports cable 60 holding the cover closed. Bar 32 pivots around pin 44 when emergency-releasable link 54 is severed, so that the ring falls off leg 36 and the cover opens under the pressure of springs 24 (Fig. 1). The cover may also be opened manually from inside by winch 61 and cable 60, or from outside by removing pivot pin 44 (Fig. 3, not shown).
GB1318670A 1969-06-30 1970-03-19 Emergency-releasable hold-down mechanism for hinged cover of a hatchway Expired GB1280921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83763969A 1969-06-30 1969-06-30

Publications (1)

Publication Number Publication Date
GB1280921A true GB1280921A (en) 1972-07-12

Family

ID=25275032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1318670A Expired GB1280921A (en) 1969-06-30 1970-03-19 Emergency-releasable hold-down mechanism for hinged cover of a hatchway

Country Status (2)

Country Link
US (1) US3516197A (en)
GB (1) GB1280921A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601437A (en) * 1970-07-06 1971-08-24 Robert J Lyons Emergency-releasable latch for hatchway door
US3792556A (en) * 1971-09-24 1974-02-19 Wasco Products Roof covering
US3738253A (en) * 1971-11-24 1973-06-12 Wasco Products Fire and smoke ventilator
US3830016A (en) * 1972-03-27 1974-08-20 Babcock Davis Ass Inc Latch mechanism for hatchway leaf
DE2509496A1 (en) * 1975-03-05 1976-09-09 Dynamit Nobel Ag COMPRESSED GAS CARTRIDGES FOR FIRE PROTECTION PURPOSES
FR2510240A1 (en) * 1981-07-21 1983-01-28 Composants Ind Batiment Smoke extractor and ventilator - has articulating closing leaves sealed on closing without central obstruction when open
US5927012A (en) * 1998-06-22 1999-07-27 The Bilco Company Emergency release latch mechanism for smoke hatch
DK173394B1 (en) * 1999-07-14 2000-09-18 Multi Tek As An openable shielding device, especially a door
US11353159B2 (en) * 2019-01-22 2022-06-07 Core-Arms, LLC Mounting system, devices, methods and uses thereof
US12096723B2 (en) * 2020-06-17 2024-09-24 Sukup Manufacturing Co. Self-opening airtight roof vent system for grain storage devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766859A (en) * 1954-01-11 1956-10-16 Byrne Doors Inc Roof hatch
US2940377A (en) * 1957-07-29 1960-06-14 Swartwout Fabricators Inc Ventilator
US2884847A (en) * 1957-08-30 1959-05-05 William H Otto Ventilator
US3182581A (en) * 1962-12-03 1965-05-11 Western Eng & Mfg Co Explosion and fire release ventilator
US3323438A (en) * 1965-08-23 1967-06-06 Western Eng & Mfg Co Explosion and fire release ventilator
US3337991A (en) * 1965-10-14 1967-08-29 Robertson Co H H Explosion pressures and/or heat and smoke venting units

Also Published As

Publication number Publication date
US3516197A (en) 1970-06-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee