GB312249A - Improvements in or connected with window blinds - Google Patents
Improvements in or connected with window blindsInfo
- Publication number
- GB312249A GB312249A GB527528A GB527528A GB312249A GB 312249 A GB312249 A GB 312249A GB 527528 A GB527528 A GB 527528A GB 527528 A GB527528 A GB 527528A GB 312249 A GB312249 A GB 312249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- pulley
- pulleys
- cord
- blind
- 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
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
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/64—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor with lowerable roller
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
Abstract
312,249. Elliott, F. C. Feb. 20, 1928. Window blinds.-A blind roller is bodily raised and lowered by cords arranged in a closed circuit, and attached to end bearing E, E<1> carrying the roller, the cords being arranged above the roller and at the sides of the window frame. Figure 2 shows an arrangement which permits raising and lowering of the blind roller and also the rolling or unrolling of the blind. An endless cord F is carried by a pulley A<3> on the roller and a loose pulley block H the cord passing under a pair of pulleys G<1> at the bottom of the window frame. A cord C is attached to the bearing E<1> and passes over pulleys D<4>, D<3> above the roller, under a pulley D<2> at the bottom of the window frame and thence up to the bearing E. A cord C<1> extends from the bearing E over the pulleys, D<3>, D<4> to the pulley block H. The two pulleys G<1> may be connected, as by a spring plunger, to turn together and the pulley D<2> may be fixed. The arrangement is such that on the pulleys G<1> rotating independently, the pulley D being locked, rotation of one pulley G<1> rotates the roller to roll or unroll the blind. When the pulleys G<1> are connected to rotate as one, the pulley D<2> being freed, rotation of the pulley D<2> raises or lowers the roller, the endless cord F acting as a single cord. When a spring roller is used one of the end bearings is elongated to resist the twisting effect of the roller. In a modified arrangement two rollers are adjusted simultaneously. Reference has been directed by the Comptroller to Specification 144,313.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB527528A GB312249A (en) | 1928-02-20 | 1928-02-20 | Improvements in or connected with window blinds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB527528A GB312249A (en) | 1928-02-20 | 1928-02-20 | Improvements in or connected with window blinds |
Publications (1)
Publication Number | Publication Date |
---|---|
GB312249A true GB312249A (en) | 1929-05-21 |
Family
ID=9793015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB527528A Expired GB312249A (en) | 1928-02-20 | 1928-02-20 | Improvements in or connected with window blinds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB312249A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2371071A (en) * | 2001-01-13 | 2002-07-17 | Norman Mankowitz | Adjustable head rail |
GB2373809A (en) * | 2001-02-05 | 2002-10-02 | Thomas John Scott Tidmarsh | Variable position window blind suspension system |
GB2379238A (en) * | 2001-08-31 | 2003-03-05 | Ching Feng Blinds Ind Co Ltd | Blind allowing selective positioning in a window |
GB2394745A (en) * | 2002-10-28 | 2004-05-05 | Nelson Tse Guang Yang | Blind with upper and lower edges which can be moved independently |
GB2431190A (en) * | 2005-10-13 | 2007-04-18 | John Benjamin Slater | Adjustable screen |
WO2011073453A1 (en) * | 2009-12-17 | 2011-06-23 | Gaviota Simbac, S.L. | Winding element for venetian blinds |
-
1928
- 1928-02-20 GB GB527528A patent/GB312249A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2371071A (en) * | 2001-01-13 | 2002-07-17 | Norman Mankowitz | Adjustable head rail |
GB2373809A (en) * | 2001-02-05 | 2002-10-02 | Thomas John Scott Tidmarsh | Variable position window blind suspension system |
GB2379238A (en) * | 2001-08-31 | 2003-03-05 | Ching Feng Blinds Ind Co Ltd | Blind allowing selective positioning in a window |
GB2379238B (en) * | 2001-08-31 | 2003-07-16 | Ching Feng Blinds Ind Co Ltd | Structure allowing selective positioning of curtains |
GB2394745A (en) * | 2002-10-28 | 2004-05-05 | Nelson Tse Guang Yang | Blind with upper and lower edges which can be moved independently |
GB2431190A (en) * | 2005-10-13 | 2007-04-18 | John Benjamin Slater | Adjustable screen |
GB2431190B (en) * | 2005-10-13 | 2010-02-24 | John Benjamin Slater | Adjustable screen |
WO2011073453A1 (en) * | 2009-12-17 | 2011-06-23 | Gaviota Simbac, S.L. | Winding element for venetian blinds |
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