GB437940A - Improvements in and relating to air extractor ventilators - Google Patents

Improvements in and relating to air extractor ventilators

Info

Publication number
GB437940A
GB437940A GB1901635A GB1901635A GB437940A GB 437940 A GB437940 A GB 437940A GB 1901635 A GB1901635 A GB 1901635A GB 1901635 A GB1901635 A GB 1901635A GB 437940 A GB437940 A GB 437940A
Authority
GB
United Kingdom
Prior art keywords
bands
ventilators
relating
air extractor
secured
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
GB1901635A
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 GB1901635A priority Critical patent/GB437940A/en
Publication of GB437940A publication Critical patent/GB437940A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues

Abstract

437,940. Shaft tops. BARKER, W. H., 72, Coniston Road, Bromley, Kent. July 3, 1935, No. 19016. Addition to 398,019. [Class 25] The extractor ventilator or shaft top of the parent Specification is modified by the replacement of the inner and outer circular bands C by rectangular bands, the corners of the bands being secured to the corner plates D. The inner bands are preferably secured to the outer bands by means of radial rods b.
GB1901635A 1935-07-03 1935-07-03 Improvements in and relating to air extractor ventilators Expired GB437940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1901635A GB437940A (en) 1935-07-03 1935-07-03 Improvements in and relating to air extractor ventilators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1901635A GB437940A (en) 1935-07-03 1935-07-03 Improvements in and relating to air extractor ventilators

Publications (1)

Publication Number Publication Date
GB437940A true GB437940A (en) 1935-11-07

Family

ID=10122357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1901635A Expired GB437940A (en) 1935-07-03 1935-07-03 Improvements in and relating to air extractor ventilators

Country Status (1)

Country Link
GB (1) GB437940A (en)

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