GB694953A - Improvements in and relating to expansion joints for metal coverings - Google Patents

Improvements in and relating to expansion joints for metal coverings

Info

Publication number
GB694953A
GB694953A GB2633/50A GB263350A GB694953A GB 694953 A GB694953 A GB 694953A GB 2633/50 A GB2633/50 A GB 2633/50A GB 263350 A GB263350 A GB 263350A GB 694953 A GB694953 A GB 694953A
Authority
GB
United Kingdom
Prior art keywords
strip
silicone rubber
joint
layer
calendered
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
GB2633/50A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB694953A publication Critical patent/GB694953A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/368—Connecting; Fastening by forcing together the marginal portions of adjacent slabs or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Abstract

694,953. Expansion joints. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 1, 1950 [Feb. 17, 1949], No. 2633/50. Class 20(iv) An expansion joint is formed between adjacent metal surfaces e.g. between roofing, outer wall, or floor plates, by interposing between the interlocking edges of the metal a flexible member to which is stuck a layer of silicone rubber. A flexible strip 9, e.g. made of tin, lead, copper, glasscloth, tape &c. carries on one face a layer of silicone rubber 8 and on the other face an adhesive 4. To form an expansion joint, Fig. 4, the strip 9 is folded to adhere to the flange 2 of a roofing plate 1 and the flange 5 of an adjacent plate 6 is interlocked to engage the silicone rubber layer 8. The joint is then hammered down in the wellknown manner leaving a part 3 of the strip 9 projected outward from the joint. One method of forming a strip includes dipping a copper foil into a boiling solution of phosphoric acid and chromium trioxide for 30 secs., removing, washing, and drying the strip, and treating one surface with uncured silicone rubber paste comprising a titanium dioxide filler, a solid, elastic, curable methylpolysiloxane and a benzoyl peroxide as a vulcanizing agent. The silicone rubber, about 20 mils thick, is calendered on to the strip which is heated to 150‹C for an hour to cure the silicone rubber. The latter may be calendered on to both sides of the backing strip. Specifications 676,464 and 694,952, [both in Group III], are referred to.
GB2633/50A 1949-02-17 1950-02-01 Improvements in and relating to expansion joints for metal coverings Expired GB694953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US694953XA 1949-02-17 1949-02-17

Publications (1)

Publication Number Publication Date
GB694953A true GB694953A (en) 1953-07-29

Family

ID=22089369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2633/50A Expired GB694953A (en) 1949-02-17 1950-02-01 Improvements in and relating to expansion joints for metal coverings

Country Status (1)

Country Link
GB (1) GB694953A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3141673A1 (en) * 2015-09-14 2017-03-15 Bauklempnerei Clemens Neumeister jun. GmbH Folded sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3141673A1 (en) * 2015-09-14 2017-03-15 Bauklempnerei Clemens Neumeister jun. GmbH Folded sheet

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