GB575728A - Improvements relating to folding doors - Google Patents

Improvements relating to folding doors

Info

Publication number
GB575728A
GB575728A GB615044A GB615044A GB575728A GB 575728 A GB575728 A GB 575728A GB 615044 A GB615044 A GB 615044A GB 615044 A GB615044 A GB 615044A GB 575728 A GB575728 A GB 575728A
Authority
GB
United Kingdom
Prior art keywords
door
folding
leaves
allow
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
Application number
GB615044A
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.)
EDUCATIONAL SUPPLY ASS Ltd
Original Assignee
EDUCATIONAL SUPPLY ASS Ltd
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 EDUCATIONAL SUPPLY ASS Ltd filed Critical EDUCATIONAL SUPPLY ASS Ltd
Priority to GB615044A priority Critical patent/GB575728A/en
Publication of GB575728A publication Critical patent/GB575728A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/48—Wings connected at their edges, e.g. foldable wings
    • E06B3/481—Wings foldable in a zig-zag manner or bi-fold wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/26—Suspension arrangements for wings for folding wings
    • E05D2015/268—Suspension arrangements for wings for folding wings the wings being successively folded

Abstract

575,728. Folding-sliding doors. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., and LEONARD, J. W. April 3, 1944, No. 6150. [Class 20 (iii)] In folding-sliding doors, of the type in which leaves fold in pairs, the door head is provided with ramps 11, spring- or weight-loaded so as to engage guide rollers 10 on alternate leaves to thrust the hinge joints outwards on opening, and shaped and positioned so that they will yield to allow the rollers 10 to pass behind them on closing. To allow initial sliding movement on opening, the end pair of leaves 16, hidden in the bay 15, may be chamfered to prevent them opening out flat, or the whole door may have slight spring- or weight-restrained movement when expanded to allow at least one hinge joint to be broken by its roller and ramp before the door strikes the end post. The ramps may be arranged to initiate folding from either end of the door. Bracing cables and power- or handoperated winding drums may be provided.
GB615044A 1944-04-03 1944-04-03 Improvements relating to folding doors Expired GB575728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB615044A GB575728A (en) 1944-04-03 1944-04-03 Improvements relating to folding doors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB615044A GB575728A (en) 1944-04-03 1944-04-03 Improvements relating to folding doors

Publications (1)

Publication Number Publication Date
GB575728A true GB575728A (en) 1946-03-01

Family

ID=9809325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB615044A Expired GB575728A (en) 1944-04-03 1944-04-03 Improvements relating to folding doors

Country Status (1)

Country Link
GB (1) GB575728A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152533A1 (en) * 1984-02-18 1985-08-28 INDUSTRIEBAU BÖNNIGHEIM GmbH + Co. Folding door with rigid non-warping wings
US5685355A (en) * 1995-11-08 1997-11-11 Cook; Gregory H. Closure system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152533A1 (en) * 1984-02-18 1985-08-28 INDUSTRIEBAU BÖNNIGHEIM GmbH + Co. Folding door with rigid non-warping wings
US5685355A (en) * 1995-11-08 1997-11-11 Cook; Gregory H. Closure system

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