GB522084A - Improvements connected with spring action rollers - Google Patents

Improvements connected with spring action rollers

Info

Publication number
GB522084A
GB522084A GB849639A GB849639A GB522084A GB 522084 A GB522084 A GB 522084A GB 849639 A GB849639 A GB 849639A GB 849639 A GB849639 A GB 849639A GB 522084 A GB522084 A GB 522084A
Authority
GB
United Kingdom
Prior art keywords
roller
recess
spindle
pawls
rotation
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
GB849639A
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 GB849639A priority Critical patent/GB522084A/en
Publication of GB522084A publication Critical patent/GB522084A/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
    • 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
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E06B9/44—Rollers therefor; Fastening roller blinds to rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)

Abstract

522,084. Blinds. MASON, J. March 16, 1939, 'No. 8496. [Class 20 (iii)] Rotation of a blind roller &c. 4 in a clockwise direction, Fig. 2, is normally prevented by gravity operated pawls 12 which are slidably mounted in radial slots 11 in a member 10 rotatable with the roller, and are adapted to coact with an inclined recess 9 in the upper side of a collar 8 fixed to a stationary supporting spindle 6 of said roller, but is permitted, by a slight anti-clockwise rotation of the roller and member 10, to effect retraction of the relevant pawl followed by a clockwise rotation sufficiently quick to prevent inward sliding of the pawls and consequent re-engagement thereof with the said recess 9. The construction is also that pawls may be rendered inoperative, to permit free rotation of the roller in either direction, by removing the spindle from its bracket and rotating it through 180 degrees so that the recess 9 is located on the underside of the ,collar 8. The roller is mounted on the spindle 6 by a block 14 which is fixed to the roller and carries the member 10, and it is formed at its bearing end with flats 7 and is secured at the other end to a rod 18 supported within the roller at 19 and entering a socket 17<SP>1</SP> on the member 10; further, the spindle end 7 is provided with an indentation 17 in alignment with the recess 9 to indicate the position of said recess. A torsion spring 20 is secured at one end to the rod 18 and at the other end to the member 10 or block 14. Specification 217,446, [Class 20 (iii)], is referred to.
GB849639A 1939-03-16 1939-03-16 Improvements connected with spring action rollers Expired GB522084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB849639A GB522084A (en) 1939-03-16 1939-03-16 Improvements connected with spring action rollers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB849639A GB522084A (en) 1939-03-16 1939-03-16 Improvements connected with spring action rollers

Publications (1)

Publication Number Publication Date
GB522084A true GB522084A (en) 1940-06-07

Family

ID=9853562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB849639A Expired GB522084A (en) 1939-03-16 1939-03-16 Improvements connected with spring action rollers

Country Status (1)

Country Link
GB (1) GB522084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199065A (en) * 1986-12-05 1988-06-29 Ho Long Roller blinds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199065A (en) * 1986-12-05 1988-06-29 Ho Long Roller blinds

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