GB648033A - Improvements in or relating to roller blinds - Google Patents
Improvements in or relating to roller blindsInfo
- Publication number
- GB648033A GB648033A GB2916548A GB2916548A GB648033A GB 648033 A GB648033 A GB 648033A GB 2916548 A GB2916548 A GB 2916548A GB 2916548 A GB2916548 A GB 2916548A GB 648033 A GB648033 A GB 648033A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- ratchet
- spring
- rod
- 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
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
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
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
648,033. Spring roller-blinds. LAYCOCKENGINEERING CO., Ltd. Nov. 10, 1948, Nos. 29165/48 and 7990/49. [Class 20(iii)] In a spring roller-blind with a winding spring 11, Fig. 1, of which one end 12 closely grips a rod 9, one end 19 of which is flattened and received in a flat hole 20 in a fixing bracket 22 and the other of which is supported in a plug 7 secured to the roller 6 and to which the other end of the spring is secured, the other end of the roller is provided with a friction clutch and ratchet arrangement, one element of the clutch being held non- rotatably and the ratchet connecting the roller to the other element of the clutch in one direction of rotation of the roller and freeing the roller in the opposite direction of rotation. One form is shown in Fig. 3 and comprises a rod 25, having a flattened end 19 similar to that of the rod 9 and received in the other bracket, with an adjustable spring 34 tending to press the left-hand face of a ratchet disc 32 into contact with a friction disc 31 and to press that disc into contact with a collar 29 secured to the rod 25 within a bore 28 in a block 23 secured to the roller 6 and in which the rod 25 is carried. A plunger-pawl 40 is normally pressed by a circular spring clip 39 into engagement with the ratchet 32 and as the blind is drawn off the roller the ratchet is rotated against the friction of the washer and is retained in any drawn position by the friction remaining operative. On pushing the blind upwardly the spring, relieved of the weight of the blind, rewinds the roller and the pawl rides idly over the teeth of the ratchet. In another form two gravityoperated pawls are used, one of which is always in position to drop into one of three ratchet teeth. Alternatively a ball clutch may be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2916548A GB648033A (en) | 1948-11-10 | 1948-11-10 | Improvements in or relating to roller blinds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2916548A GB648033A (en) | 1948-11-10 | 1948-11-10 | Improvements in or relating to roller blinds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB648033A true GB648033A (en) | 1950-12-28 |
Family
ID=10287163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2916548A Expired GB648033A (en) | 1948-11-10 | 1948-11-10 | Improvements in or relating to roller blinds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB648033A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078198A (en) * | 1989-05-12 | 1992-01-07 | Sunproject S.R.L. | Take-up roller for curtains of the roll-up type |
| US8708024B2 (en) | 1997-11-04 | 2014-04-29 | Russell L. Hinckley, Sr. | Methods for operating window covers |
-
1948
- 1948-11-10 GB GB2916548A patent/GB648033A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078198A (en) * | 1989-05-12 | 1992-01-07 | Sunproject S.R.L. | Take-up roller for curtains of the roll-up type |
| US8708024B2 (en) | 1997-11-04 | 2014-04-29 | Russell L. Hinckley, Sr. | Methods for operating window covers |
| US8720525B2 (en) | 1997-11-04 | 2014-05-13 | Russell L. Hinckley, Sr. | Methods for operating window covers |
| US8887788B2 (en) | 1997-11-04 | 2014-11-18 | Russell L. Hinckley, SR. | Methods for operating window covers |
| US9316051B2 (en) | 1997-11-04 | 2016-04-19 | Russell L. Hinckley, SR. | Window cover system with spring drive arrangement |
| US9328554B2 (en) | 1997-11-04 | 2016-05-03 | Russell L. Hinckley, SR. | Spring drive systems for window covers |
| US9359814B2 (en) | 1997-11-04 | 2016-06-07 | Russel L. Hinckley | Systems for maintaining window covers |
| US9574396B2 (en) | 1997-11-04 | 2017-02-21 | Russell L. Hinckley, SR. | Systems for maintaining window covers |
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