GB430756A - Improvements in and relating to devices for closing doors and gates - Google Patents

Improvements in and relating to devices for closing doors and gates

Info

Publication number
GB430756A
GB430756A GB3601733A GB3601733A GB430756A GB 430756 A GB430756 A GB 430756A GB 3601733 A GB3601733 A GB 3601733A GB 3601733 A GB3601733 A GB 3601733A GB 430756 A GB430756 A GB 430756A
Authority
GB
United Kingdom
Prior art keywords
cylinder
linkage
piston
door
pivoted
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
GB3601733A
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
Priority to GB3601733A priority Critical patent/GB430756A/en
Publication of GB430756A publication Critical patent/GB430756A/en
Expired legal-status Critical Current

Links

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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • 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
    • E05Y2900/132—Doors

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)

Abstract

430,756. Door-operating appliances. COLLINS, A. L., Kennan's House, Crown Court, Cheapside, London.-(Cameron, E. M. ; 375, Smith Street, Durban, South Africa) Dec. 21, 1933, No. 36017. [Class 65 (i)] A collapsable or sliding door or gate is closed by a device comprising a cylinder containing a piston connected to the door through a linkage, the piston being acted on by a spring, assisted by the weight of the linkage, and moving slowly against the resistance of air in the cylinder until the stroke is nearly complete, when a byepass is opened to allow quick final closing. The device is shown applied to a sliding door, and the linkage comprises a member 17 pivoted to a fixed bracket 21, a member 18 pivoted to the door and, at an intermediate point, to the end of the link 17, and a member 19, pivoted at an intermediate point on the link 17 and having a slot engaging a pin on the end of the link 18. The cylinder 1 is pivoted to the link 17, and the piston-rod is connected adjustably to the lever 19. Opening of the door causes the linkage to rise and to draw out the piston, which compresses a spring (or two or more springs in series) in the cylinder, the closing movement being produced by the spring or springs assisted by the weight of the descending linkage. The closing movement is resisted by the air in the cylinder, which leaks out through a valve in the cylinder head, until the piston approaches the end of its stroke, when it passes the outer end of a byepass to allow free movement of the air and rapid completion of the stroke. The byepass may be formed by grooves in the cylinder, ports and passages in the cylinder wall or a short external pipe connecting ports in the cylinder.
GB3601733A 1933-12-21 1933-12-21 Improvements in and relating to devices for closing doors and gates Expired GB430756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3601733A GB430756A (en) 1933-12-21 1933-12-21 Improvements in and relating to devices for closing doors and gates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3601733A GB430756A (en) 1933-12-21 1933-12-21 Improvements in and relating to devices for closing doors and gates

Publications (1)

Publication Number Publication Date
GB430756A true GB430756A (en) 1935-06-21

Family

ID=10384041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3601733A Expired GB430756A (en) 1933-12-21 1933-12-21 Improvements in and relating to devices for closing doors and gates

Country Status (1)

Country Link
GB (1) GB430756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298460B (en) * 1994-09-16 1997-11-12 Xcalibre Equipment Ltd Pneumatic device and system
CN115522854A (en) * 2022-10-13 2022-12-27 中铁第四勘察设计院集团有限公司 Folding fireproof door

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298460B (en) * 1994-09-16 1997-11-12 Xcalibre Equipment Ltd Pneumatic device and system
CN115522854A (en) * 2022-10-13 2022-12-27 中铁第四勘察设计院集团有限公司 Folding fireproof door
CN115522854B (en) * 2022-10-13 2024-04-26 中铁第四勘察设计院集团有限公司 Folding fireproof door

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