FIELD: civil engineering. SUBSTANCE: concrete form has vertical (for walls) and horizontal skeleton-like screens. The screens have slots for fastening members and are connected to one another through a bent member. In so doing the bent member is joined rigidly to skeletons of the screens through holders, and has a corner plate hinged through strut to the support. The support is also hinged to the screens through struts. The supports are provided with movable yoke. Ends of the struts are hinged to movable yoke. A fork is provided for placing skeleton of wall-type screen on the supports. The holder may be made in the form of a plate with rotary rectangular fixing rod. The size of the rod is less than size of the skeleton in lengthwise direction, and higher than crosswise size of the slot. EFFECT: technological effectiveness. 2 cl, 3 dwg
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CONCRETE FORM FOR FORMING AN APERTURE IN A WALL | 1993 |
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Authors
Dates
1995-07-25—Published
1993-02-25—Filed