Recent Building Patents

Progress, Volume XI, Issue 12, 1 August 1916, Page 704

Recent Building Patents

Plaster, Foundation for.—Jas. L. Owen, of Christchurch has taken out a patent (No. 36013) consisting of a mesh comprising a series of galvanised-iron or steel wires 1 of sufficient gauge to ensure rigidity, and which wires are bent to flat open spiral form so as to constitute a series of trian-

gular loops 2. The loops are interlaced chain-wise so as to produce a continuous mesh of diamond form. This construction allows of the wires hinging one upon the other and so being conveniently drawn taut and secured upon the framework.

Reinforced Concrete Building Construction. — Lanigan of 258 Jervois Eoacl, Auckland (No. 37246).' The invention comprises a framework shaped to correspond to the structire to be built, and slidable upon uprights consisting of vertical rods, tubes, or the like, having their ends provided with feet or dish-plates embedded in a foundation of concrete; the securing wire netting or the like to the uprights; the holding forms, shutters, or panels in position by means of wires having loops at their middle part surrounding the uprights, the ends of the wires passing through distancepieces or ferrules having a total length corresponding to the thickness of the wall to be formed; and collars secured to the wires by set-screws, thereby forming stops against which press nuts screwed upon brackets fixed to plates, which hold the

forms against the distance-pieces. The framework is stayed by struts, and hai holes or is otherwise formed for holding the upper part of the vertical uprights in position while the building of the walls is proceeding, is made to slide vertically on the uprights, and is raised from time to time as the height of the wall increases. The uprights can be used in short or long lengths, and can be lengthened by the use of sockets or pipe-unions screwed upon either or both ends of the uprights. The lower ends of the uprights are held in position by feet set in the foundation, and by the wall itself as the work proceeds, while the upper ends of the uprights are held vertical and in proper position by the framework, thus keeping the wire netting taut longitudinally while the work of filling in the concrete between the form is proceeding.

Facing Weatherboards.—J. A. Hooppell of Victoria, Australia has taken out a patent (No. 18110). To protect the outside surface of weather-board buildings, facing strips

of sheet iron are formed with flanges along their lower edges which are turned in beneath the bottoms of the boards, while their upper edges are strengthened by rolls E and fit beneath the flanges of the covering for the boards immediately above.

Winlow-Sash-Frame Joint, Steel.—Alfred Woolnough of Willis Street, Dunedin, has taken out a patent (No. 36436). It comprises, in combination -with the outside members of the frame, an astragal-member, consisting of a bar having filleted

lateral projections and a dowel formed by cutting a shoulder at the end of the astragal-member, the said dowel including the filleted lateral projections thereon, being adapted to be housed within a correspondingly shaped hole punched in the outside rail-member of the sash.