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Device useful in forming concrete structural slabs

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专利汇可以提供Device useful in forming concrete structural slabs专利检索,专利查询,专利分析的服务。并且An apparatus for placing and removing temporary decks or forms on which concrete is poured to form a structural slab, such as a roof or floor, is constructed of a panel formed of two portions and provided at its opposite ends with curved, turned-down end extensions which rest at their turned-down ends on preformed supports such as joists or beams. The curved end extensions are coextensive in width with each portion of the panel to which they are attached. Adjacent one of the curved end extensions the panel portions are hinged. During pouring of the concrete, the portions of the panel are prevented from hinging by a suitable latch. After the concrete has hardened, release of the latch permits downward hinging of the panel and falling away and removal of the entire form assembly from the concrete without binding thereto.,下面是Device useful in forming concrete structural slabs专利的具体信息内容。

1. Removable apparatus for supporting poured concrete in the form of substantially horizontal structural slabs resting on preformed supports, comprising: means for supporting said poured concrete comprising a panel formed of two portions, one portion being a continuation in the same plane of the other portion, said portions being eccentrically hinged by being joined by hinging means adjacent one end of said panel for downwardly hinging and causing falling away of said panel portions from the concrete after hardening thereof, ends of said panel to each panel portion, said curved end extensions being turned down for resting at the turned-down ends thereof on said preformed supports, said curved end extensions extending along the width of each panel portion to which they are attached, latching means for preventing said hinging of said panel portions while the concrete is being poured and for permitting said hinging after the poured concrete has hardened, vertically depending side flanges attached to each of said panel portions, said side flanges having contiguous ends which form complementary angles from the vertical, said side flanges being rotatably mounted on a single pin to form the aforesaid hinging means, and at least one of said side flanges partially overlapping to other to form a lever.
2. Removable apparatus for supporting poured concrete in the form of substantially horizontal structural slabs resting on preformed supports, comprising: means for supporting said poured concrete comprising a panel formed of two portions, one portion being a continuation in the same plane of the other portion, said portions eccentrically hinged by being joined by hinging means adjacent one end of said panel for downwardly hinging and causing falling away of said panel portions from the concrete after hardening thereof, curved end extensions attached at opposite ends of said panel to each panel portion, said curved end extension being turned down for resting at the turned-down ends thereof on said preformed supports, said curved end extensions extending along the width of each panel portion to which they are attached, latching means for preventing said hinging of said panel portions while the concrete is being poured and for permitting said hinging after the poured concrete hardened, vertically depending side flanges attached to each of said panel portions, said side flanges having contiguous ends which form complementary angles from the vertical, said side flanges being rotatably mounted on a pin to form the aforesaid hinging means, the side flange attached to one of the panel portions carrying a lever arm, and said lever arm extending sufficiently beyond said pin to be engaged by And disengaged from said latching means.
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