Patent GB-601688-A (GB)
Title: Improvements in and relating to shuttering for casting walls in situ and to devices for rendering or cladding walls
IPC: E04G11/12
Filed: 1945-04-24
Abstract: 601,688. Casting walls in situ. HOENIG, E. April 24, 1945, Nos. 10251 and 18635. [Class 20(ii)] Apparatus for casting a concrete wall in situ comprises a framework 2 of steel or timber, on which inner shuttering 13 is supported, and uprights 3 to which an outer shuttering plate 7 is clamped by shuttering brackets 4, the uprights 3 being supported from the framework 2 through brackets 1. A wall may be faced with slabs, tiles or the like 29, Fig. 4, which are used as permanent shuttering, by attaching them to the inside of a shuttering plate by clips 28, or by hooks, angles or channels, and pouring the concrete over an oblique plate 30. As casting proceeds the shuttering plate 7, to which may be clipped an oblique plate 8, may be raised by sliding the shuttering brackets 4 along the uprights, or more plates and shuttering brackets may be. added. The plates 7 may be shaped to mould various projections from the wall, or separate moulds may be attached to the tops of the plates. A separate plate 23 may also be hinged to the shuttering plate, Fig. 3, whereby a top layer of concrete may be introduced beneath a ceiling &c. by raising the hinged plate, excess concrete leaving through the holes 26. Instead of a plate or plates, the outer shuttering may be a frame covered with appropriate material. The inner shuttering 13 is formed by building paper backed by wires 18 and mesh reinforcement 16, hung on bolt hooks 15, and by rods 14 which are secured to the framework 2 by the washers of the bolt hooks. An opening 17 in the framework 2 provides for a door or window, and is sealed against ingress of concrete by a frame 10, secured by clips 11, which protrudes the thickness of the wall, and in which a second frame may be telescopically inserted. Alternatively to the frame 10 strip or angle iron may be clipped to the framework 2. The bottom of the frame 10 may be hinged, and the top, bottom and sides may have moulds. The uprights 3 may be of various cross-sections, solid or tubular, and may be in separate lengths, staggered and overlapping. They may be clamped lengthwise between a screw jack and the floor or ceiling, or between two screw jacks, or their lower ends may rest in sockets. The wall brackets 1 may be angle brackets or horizontally adjustable in length, and may be fixed by various means, e.g. by suction holders. The shuttering brackets 4 may be adjustable in length, may be inclined up or down, and may comprise various means of connection at both ends, e.g. at one end ball bearings housed in grooves in the uprights 3, plate springs engaging notches therein or cog wheels engaging teeth therein, and at the other end a universal joint or a rotating clip permitting rotation of the shuttering plates. With the cog wheel and tooth arrangement synchronous gearing between shuttering brackets may be provided. Scales may be marked on the uprights. The first Provisional Specification refers also to the securing of the brackets 1 to a wall to enable shuttering to be supported for the purpose of rendering or plastering the walls.