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1. 发明专利

GB440961A Improvements in the method of and in reinforced concrete slabs for insulating water-proof floors and flat roofs 未知
公开(公告)号：GB440961A
公开(公告)日：1936-01-06
申请号：GB1975634
申请日：1934-07-05
申请人： REGINALD HENRY BATES , WILLIAM ALBERT COOPER
IPC分类号： E04D11/00
摘要： 440,961. Roofs ; floors; slabs. BATES, R. H., 30, Ballantrae Road, Mossley Hill, Liverpool, and COOPER, W. A., 36, Cambridge Avenue, Great Crosby, near Liverpool. July 5, 1934, No. 19756. [Classes 20 (iv), 87 (i), and 107] A flat roof or floor A is provided with a superposed insulating layer in the form of a number of concrete or reinforced-concrete slabs D, each of which is bevelled around its upper periphery and has at each corner a depending supporting foot E extending below the underside of the slab by an amount at least equal to twice the thickness of the slab, the outer faces of the feet being shaped to provide vertical grouting grooves 3. The slabs may be provided with additional supporting feet E at the centres of the longer sides, as shown in Fig. 8. The slabs are placed side by side and end to end so that the grooves 3 formed in the abutting feet E of adjacent slabs provide vertical cavities for the reception of grouting, and the bevelled peripheries of adjacent slabs form continuous longitudinal and transverse V-shaped grooves which also receive grouting. The marginal slabs of the roof or floor are provided with continuous depending flanges along one side or end, or, in the case of a corner slab, along one side and one end, in order to provide an enclosed air space between the slabs and the surface of the structure A. The roof or floor A is provided with an asphalt covering C, which may be provided in two layers, as shown in Fig. 1. The surfaces of the slabs may have cast-iron gratings moulded therein.

2. 发明授权

US08607932B2 Ladder stabilizing attachments 失效
标题翻译：梯子稳定附件
公开(公告)号：US08607932B2
公开(公告)日：2013-12-17
申请号：US11807812
申请日：2007-05-31
申请人： William Albert Cooper , Rosemary Jennings Cooper
发明人： William Albert Cooper , Rosemary Jennings Cooper
IPC分类号： E06C1/22 , E06C7/46
CPC分类号： E06C7/423 , E06C7/46
摘要： A ladder stabilizing attachment for a ladder is disclosed. The device is basically made of two or more long variable length stabilizing legs FIGS. (1) and (11) attached to the upper part of a ladder by universal joints FIGS. (9) and (9A), and capable of forming a triangular or multi-angular pyramid with the ladder. The legs can be independently positioned to give greater lateral stability, as well reducing slide out tendency of the ladder base. The foot sockets of the stabilizing legs FIG. (5) are designed to minimize overloading and movement due to ladder flexing. The device is constructed so that it can be built into new ladders, and readily adapted for and fitted to most existing ladders.
摘要翻译：公开了梯子的梯子稳定附件。该装置基本上由两个或更多个可变长度稳定腿构成。（1）和（11）通过万向接头附接到梯子的上部。（9）和（9A），并且能够与梯子形成三角形或多角度的金字塔。腿可以独立定位以提供更大的横向稳定性，以及减少梯子底座的滑出倾向。稳定腿的脚插座图。（5）被设计成最小化由于梯子弯曲而导致的过载和运动。该装置被构造成使其可以被构建成新的梯子，并且容易地适应并适合大多数现有的梯子。

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