Claims
- 1. A rectangular precast panel for use in constructing walls and floors of buildings, which panel is made of a cement-based material and comprises a first and second face that are opposed to each other, a pair of first opposed sides and a pair of second opposed sides, wherein:
- (a) each first side has a shoulder spaced apart from the second face of the panel, one surface of which shoulder is flush with the first face of the panel and there being a void between a second surface of said shoulder, opposite said one surface, and a plane of the second face of the panel;
- (b) each second side is shaped to internest with a second side of an identically-shaped panel;
- (c) the panel further includes a plurality of engaging means embedded in the panel adjacent to each of said first sides, and bores extending from each engaging means to the said second face whereby bolts can be secured in the panels by engagement with said engaging means to hold shuttering against said second face; said panel also including a plurality of securing members each having an arm embedded in the panel and a hook part extending from one of the first sides, said hook part being capable of hooking onto a structural member to engage the panel on the structural member.
- 2. A panel as claimed in claim 1, wherein the arm of each securing member is joined directly to one of said engaging means.
- 3. A panel as claimed in claim 1, wherein each engaging means is a nut.
- 4. A panel as claimed in claim 1, wherein the arm of each securing means is joined indirectly to one of said engaging means.
Priority Claims (1)
| Number |
Date |
Country |
Kind |
| 8202562 |
Jan 1982 |
GBX |
|
Parent Case Info
This application is a continuation-in-part of U.S. Ser. No. 462,434 filed 1/31/83, now U.S. Pat. No. 4,573,303--A method of casting foors and ceilings.
The present invention relates to a building panel for use in the method described in U.S. Ser. No. 462,434, now U.S. Pat. No. 4,573,303, the contents of which are incorporated herein by reference, and also in a method for constructing walls, and particularly walls of buildings.
The use of pre-cast building panels in the construction of walls and floors is known. For example, British Patent No. 240,678 describes the manufacture of walls using rectangular panels each having a tongue or a groove along its four sides which form tongue-and-groove joints with other identically-shaped panels to form an interlocked structure. A row of panels joined together at their sides is secured to a complete wall of shuttering by anchors one end of each of which engages in slots in a panel and the other end of which is nailed to the shuttering; the anchors ensure a gap between the shuttering and the row of panels and the gap is filled with concrete, following which a further row of panels is placed on, and interlocked with, the panels of the first row, anchors are used to fix the second row to the shuttering wall and a further amount of concrete is in-filled between the shuttering and the second row of panels. These steps are repeated for subsequent rows until a complete wall is built.
However, such an arrangement requires the use of a large quantity of concrete and also the panels can slip sideways on the concrete in-fill since the anchors do not provide an effective bar to such a movement. Finally, it is necessary to build a complete wall of shuttering which is time-consuming and expensive.
Pre-cast ceiling panel are known in a variety of shapes and the following patent specifications describe such panels: British Patent Specifications Nos. 496,235; 785,499; 1,105,033 and 1,591,359; Italian Patent Specification No. 671,433; French Patent Specifications Nos. 782,660 and 932,379; and U.S. Pat. No. 3,093,935. However, all these panels require elaborate systems of shuttering and cannot be used to form walls.
According to the present invention there is provided a rectangular precast panel for use in constructing walls and floors of buildings, which panel comprises a first and a second face that are opposed to each other, a pair of first opposed sides and a pair of second opposed sides, wherein:
(a) each first side has a shoulder spaced apart from the second face of the panel, one surface of which shoulder is flush with the first face of the panel;
(b) each second side is shaped to internest with a corresponding side of an identically-shaped panel;
(c) the panel further includes a plurality of engaging means, which are preferably nuts, embedded in the panel adjacent to each of said first sides, and bores extending from each engaging means to the said second face whereby bolts can be secured in the panels by engagement with said engaging means to hold shuttering against said second face.
Preferably, the nuts are anchored in the panels by means of plates attached to, or ingegral with, the nuts. Also, the panels may include a plurality of securing members each having an arm embedded in the panel and a hook part extending from one of the first sides or from the second face in the vicinity of one of the first sides.
US Referenced Citations (18)
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Jun 1935 |
FRX |
| 932379 |
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FRX |
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FRX |
| 328979 |
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ITX |
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Continuation in Parts (1)
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Number |
Date |
Country |
| Parent |
462434 |
Jan 1983 |
|
Patent Grant
4727701
