Patents of Interest to Builders.

Progress, Volume XVI, Issue 2, 1 October 1920, Page 47

Patents of Interest to Builders.

Concrete Building Construction. —A patent, No. 41398,, has been taken out by George Ogle, People’s Palace, Wellington, according to which slabs are formed with bevelled ends and rebated longitudinal edges. The slabs have embedded therein horizontal rods provided with eyes at their ends. Recesses are formed in the inner sides of the slabs opposite said eyes, and holes are formed in the outer sides of the slabs directly opposite said eyes

and recesses. Framing-members such as studs and cor-ner-pieces "are formed with recesses lengthwise of the member, and are provided with metal rods embedded lengthwise therein, and also with cross bolts embedded

therein, the latter being bent around and between said rods and emerging from the members in the recesses. The framing members have bevelled faces, against which the bevelled ends of the slabs fit, the ends of the cross-arms pass'ng through the holes in the slabs.

Cavity Concrete-Wall Moulding Frame. — patent, No. 43,225 has been taken out by P. J. Beaton, carpenter, of Wades'town, Wellington. In carrying out this invention the frames us;d are formed in the usual manner by boards fastened together in any approved way so as to form plates of the required superficial area. The inner plate of each pair of plates required to form the mould on each side of the wall-cavity is provided with metallic bar strips secured down its inside face, at any approved distances apart, and at suitable points in the length of each of such strips screw tapped holes are made and disposed coinci-

dently with apertures made in such plate, and also with apertures made in tne outer plate of the correspondingmould. Threaded pins or set screws are provided to pass in through the apertures in the outside plate and to screw into the threaded holes in the metal bars of the inside plate, and these pins or set-screws, by their adjustment, serve the position and hold the inner plate firmly at the required distance in relation to the outer plate. Such pins are arranged at approved positions in the surface area of the plates, and may be varied in number in accordance with the sizes, of the plates employed.