GB298105A - Improvements in or relating to fireproof roller doors, shutters and the like - Google Patents

Improvements in or relating to fireproof roller doors, shutters and the like

Info

Publication number
GB298105A
GB298105A GB1742027A GB1742027A GB298105A GB 298105 A GB298105 A GB 298105A GB 1742027 A GB1742027 A GB 1742027A GB 1742027 A GB1742027 A GB 1742027A GB 298105 A GB298105 A GB 298105A
Authority
GB
United Kingdom
Prior art keywords
shutters
relating
roller doors
pollard
descent
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
GB1742027A
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.)
HAROLD EDWARD POLLARD
Pollard & Co Ltd E
Original Assignee
HAROLD EDWARD POLLARD
Pollard & Co Ltd E
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 HAROLD EDWARD POLLARD, Pollard & Co Ltd E filed Critical HAROLD EDWARD POLLARD
Priority to GB1742027A priority Critical patent/GB298105A/en
Publication of GB298105A publication Critical patent/GB298105A/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

Abstract

298,105. Pollard, H. E., and Pollard & Co., Ltd., E. June 30, 1927. Permanently applied brakes. - A brake for retarding the descent of roller shutters consists of one or more eccentric discs A fast on or driven by clutch or ratchet from the shutter-operating spindle B and engaging frictionally the side walls D of a slotted, adjustably weighted oscillating member C. The clutch or ratchet F when provided is rendered operative only on the descent of the shutter.
GB1742027A 1927-06-30 1927-06-30 Improvements in or relating to fireproof roller doors, shutters and the like Expired GB298105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1742027A GB298105A (en) 1927-06-30 1927-06-30 Improvements in or relating to fireproof roller doors, shutters and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1742027A GB298105A (en) 1927-06-30 1927-06-30 Improvements in or relating to fireproof roller doors, shutters and the like

Publications (1)

Publication Number Publication Date
GB298105A true GB298105A (en) 1928-10-01

Family

ID=10094881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1742027A Expired GB298105A (en) 1927-06-30 1927-06-30 Improvements in or relating to fireproof roller doors, shutters and the like

Country Status (1)

Country Link
GB (1) GB298105A (en)

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