GB888200A - Improvements relating to means for forming cavities in concrete and like cast materials - Google Patents

Improvements relating to means for forming cavities in concrete and like cast materials

Info

Publication number
GB888200A
GB888200A GB2690259A GB2690259A GB888200A GB 888200 A GB888200 A GB 888200A GB 2690259 A GB2690259 A GB 2690259A GB 2690259 A GB2690259 A GB 2690259A GB 888200 A GB888200 A GB 888200A
Authority
GB
United Kingdom
Prior art keywords
projection
concrete
forming cavities
shuttering
improvements relating
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
GB2690259A
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.)
ALEXANDER FELDMANN
Original Assignee
ALEXANDER FELDMANN
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 ALEXANDER FELDMANN filed Critical ALEXANDER FELDMANN
Priority to GB2690259A priority Critical patent/GB888200A/en
Publication of GB888200A publication Critical patent/GB888200A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063—Re-usable forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

888,200. Forming cavities in concrete. FELDMANN, A. Aug. 5, 1960 [Aug. 6, 1959; April 20, 1960], Nos. 26902/59 and 13916/60. Class 20(2) A core 1 for forming a cavity in concrete &c. has a rubber &c. projection 2 adapted to be passed through a hole in a shuttering panel 5 and secured by a member 4. The member 4 may be a threaded nut engaging a screw thread on the projection 2 or it may be unthreaded and be slid over the projection 2 while it is stretched and reduced in diameter by pulling on its end 21 and grips the projection 2 against the shuttering when the end 21 is released. In a further modification a spring clip 55, Fig. 6, on the end of the projection 2 is engaged with the projection 2 against the shuttering by bending the projecting 2 over. A coil spring 3 reinforces the projection 2.
GB2690259A 1959-08-06 1959-08-06 Improvements relating to means for forming cavities in concrete and like cast materials Expired GB888200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2690259A GB888200A (en) 1959-08-06 1959-08-06 Improvements relating to means for forming cavities in concrete and like cast materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2690259A GB888200A (en) 1959-08-06 1959-08-06 Improvements relating to means for forming cavities in concrete and like cast materials

Publications (1)

Publication Number Publication Date
GB888200A true GB888200A (en) 1962-01-31

Family

ID=10251009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2690259A Expired GB888200A (en) 1959-08-06 1959-08-06 Improvements relating to means for forming cavities in concrete and like cast materials

Country Status (1)

Country Link
GB (1) GB888200A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157807A (en) * 1973-12-10 1979-06-12 Mccluskey John R Aperture forming devices
USRE31598E (en) * 1973-12-10 1984-06-05 Aperture forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157807A (en) * 1973-12-10 1979-06-12 Mccluskey John R Aperture forming devices
USRE31598E (en) * 1973-12-10 1984-06-05 Aperture forming device

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