FR2336531A1 - Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws - Google Patents

Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws

Info

Publication number
FR2336531A1
FR2336531A1 FR7540183A FR7540183A FR2336531A1 FR 2336531 A1 FR2336531 A1 FR 2336531A1 FR 7540183 A FR7540183 A FR 7540183A FR 7540183 A FR7540183 A FR 7540183A FR 2336531 A1 FR2336531 A1 FR 2336531A1
Authority
FR
France
Prior art keywords
sets
screws
channels
moved
sections
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.)
Granted
Application number
FR7540183A
Other languages
French (fr)
Other versions
FR2336531B1 (en
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 FR7540183A priority Critical patent/FR2336531A1/en
Publication of FR2336531A1 publication Critical patent/FR2336531A1/en
Application granted granted Critical
Publication of FR2336531B1 publication Critical patent/FR2336531B1/fr
Granted 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
    • E04G15/065—Re-usable forms with mechanical means to modify the section

Abstract

The core for the concrete shuttering consists of two sets of sections (2a, 2b; 3a, 3b). Each section of each set has one lengthwise side (4), and two sloping edges (5, 6) forming an acute angle. The various sections of the two sets are joined by means of C-shaped pieces (7) and by a support (8) consisting of a U-shaped piece which is fixed to a bar (10) by means of adjusting screws. The pieces (7, 8, 10) are positioned on the inside of the sections (2a, 3a), parallel to the edges (5, 6). The support preferably projects beyond the edge of the section (2a) on which it is fixed. The C shaped piece (7) is preferably recessed back from the corresponding edge of the section opposite. The core is fitted with screws joined to the two sets of sections and moving them in a lengthwise direction.
FR7540183A 1975-12-23 1975-12-23 Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws Granted FR2336531A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7540183A FR2336531A1 (en) 1975-12-23 1975-12-23 Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7540183A FR2336531A1 (en) 1975-12-23 1975-12-23 Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws

Publications (2)

Publication Number Publication Date
FR2336531A1 true FR2336531A1 (en) 1977-07-22
FR2336531B1 FR2336531B1 (en) 1982-04-16

Family

ID=9164330

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7540183A Granted FR2336531A1 (en) 1975-12-23 1975-12-23 Retractable core for concrete shuttering - consists of two sets of sloping edge sections joined together by channels and moved by screws

Country Status (1)

Country Link
FR (1) FR2336531A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494351A (en) * 1981-08-18 1985-01-22 Coles Cranes Limited Booms for cranes or the like
EP0630727A1 (en) * 1993-06-23 1994-12-28 Tian Khoo A set of parts for use in building and a method of using same
US11536041B2 (en) * 2017-12-15 2022-12-27 Peri Se Corner shuttering element for shuttering and deshuttering of inner corners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494351A (en) * 1981-08-18 1985-01-22 Coles Cranes Limited Booms for cranes or the like
EP0630727A1 (en) * 1993-06-23 1994-12-28 Tian Khoo A set of parts for use in building and a method of using same
US11536041B2 (en) * 2017-12-15 2022-12-27 Peri Se Corner shuttering element for shuttering and deshuttering of inner corners

Also Published As

Publication number Publication date
FR2336531B1 (en) 1982-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse