Oct. 31.] THE NEW ZEALAND GAZETTE. 3277

movable metallic or rigid mouthpiece fitting over the open end of the casing and having an internal shoulder, and adapted to be forced down upon the upper extremity of the “rubber inflation” (which is drawn over a reduced neck on the casing), or upon an intervening washer to protect said “inflation.” The mouthpiece is so constructed as to fit over and be removably secured to the upper part of the casing, and for this purpose may be formed with an inclined or curved slot adapted to engage with a stud on the casing and lock the parts together, after the manner of a bayonet-joint, or it may simply be screwed upon the outer circumference of said casing.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

(Specification, 5s.; drawing, 2s.)

No. 23147.—18th July, 1907.—MARK ANTHONY GRANT, late of Kalgoorlie, Western Australia, but now of 26 White Street, Richmond, Melbourne, Victoria, Australia, House-painter. The conversion of the residues of burnt auriferous clays and auriferous earth-clays into bricks, pottery and terra-cotta wares, and building cements.

Claims.—(1.) The initial roasting or burning of the said crude auriferous clays and auriferous earth-clays in furnace, clamp, oven, or kiln by means of natural or artificial gases, solid or liquid fuels, for the purpose of extracting from such crude clays and any of the precious metals contained therein and partly eliminating therefrom such constituents as sulphur, arsenic, and magnesia, and also for converting into caustic lime any carbonate of lime contained therein, substantially as described. (2.) For the manufacture of fire-bricks, the arrangement and mixing together in the proportions described of burnt auriferous clay residues, crude clay, and either clean quartz sand, tale, mineral or ground graphite, and water, then moulded by hand or machine and burned in furnace, clamp, oven, or kiln by means of natural or artificial gases, solid and liquid fuels, substantially as described. (3.) For the manufacture of common building-bricks, the arrangement and mixing together in the proportions described of burnt auriferous clay residues, sand, crude clay, and water, the mixture being then moulded into bricks and burnt in furnace, clamp, oven, or kiln by means of natural and artificial gases, solid and liquid fuels, substantially as described. (4.) For the manufacture of vitrecus bricks, the arrangement and mixing together in the proportions described of crude auriferous clay and sand with roasted auriferous clay residues and water, the bricks being then moulded by hand or machine and, by means of natural or artificial gases, solid or liquid fuels, burned in furnace, clamp, oven, or kiln with heat so intense as to induce an extreme degree of hardness, substantially as described. (5.) For the manufacture of terra-cotta and pottery wares, the arrangement and mixing together of burnt auriferous clay residues, sand, and crude auriferous clay and water in the proportions described in the ingredients, varying according to the nature and colour of the article required, then moulded by hand or machine, burnt in furnace or clamp or kiln by natural or artificial gases, solid or liquid fuels, substantially as described. (6.) For the manufacture of building cement (first kind), the arrangement and mixing together in the proportions described of auriferous and earth-clay residues, ground limestone, ground peroxide of manganese, crude clay, and water, the mixture being moulded by hand or machine into brick-shaped lumps, dried and then burned to a vitrecus hardness in furnace, clamp, oven, or kiln by natural or artificial gases, solid or liquid fuels, and finally ground to a very fine powder. (7.) For the manufacture of building cement (second kind), the arrangement and mixing together in the proportions described of auriferous clay residues, water, gum or gum resin dissolved with borax or potash and evaporated to dryness, with caustic lime and peroxide of manganese added thereto, the mixture thus obtained being then ground to a very fine powder, as described. (8.) For the manufacture of the four kinds of bricks described, the arrangement and mixing together in proportions of auriferous clay residues or earth-clay residues, sand, and crude clay, moulded by hand or machine, dried and then burned in furnace, clamp, oven, or kiln by natural or artificial gases, solid or liquid fuels, substantially as described. (9.) The construction and arrangement of a single-header brick, having three or a lesser number of grooves, each commencing at points a short distance from one head of the brick, the points being marked with the letter “A” in the drawing, thence running longitudinally to the other head of the brick as to the points marked “B” in the said drawing, with vertical perforations made through the brick in each of such grooves at points equidistant one from another, as shown in the drawing No. 3 and marked “C,” substantially as described. (10.) The construction and arrangement of a double-header brick, having grooves equidistant from each other, each groove starting and finishing at points a short distance from each head of the brick, such points being marked “D” on the drawing No. 2, with perforations made vertically through the brick at points equidistant from each other along each of such grooves, as shown and marked “E” on the drawing No. 2. (11.) The construction of arrangement of a stretcher-brick, having three or a lesser number of grooves running along the whole length of the brick, with perforations made vertically through the brick at points equidistant from each other along each such grooves, as shown on the drawing No. 1, such grooves and perforations being respectively marked “F” and “G.” (12.) The grooves referred to in the three foregoing paragraphs are so constructed as to allow steel or other wire-bands to be passed along such grooves and fastened to window and door frames by bending such wire into a hook at each end, and securing same by means of nails or staples driven into such door and window frame. (13.) The perforations in the said bricks are made for the purpose of passing such wire-bands vertically through the bricks in short lengths from the bottom upwards, each wire-end being bent into a hook fixed into such grooves and thus secured to the brickwork, the upper end of the topmost wire of the series being fastened to the rafters or ceiling joists by the same means and in the same manner as described in the last preceding paragraph hereof as regards window and door frames, and for the purpose of securing the roof of any building. (14.) The arrangement and use in short lengths of such wire-band in connection with single-header brickwork for fastening skirtings, mouldings, architraves, and the like by bending one end of the wire into a hook and inserting such hook into one of the perforations, and splitting the other end into two parts, which parts are riveted to a screw-nut, the riveted end being passed through one of the brick grooves along a band course, and securing any such woodwork by means of a screw driven through a hole bored for the purpose in the woodwork, and finally securing same on the opposite side by means of a screw-nut.

(Specification, 14s.; drawing, 3s.)

No. 23149.—18th July, 1907.—LOUIS RUDEMANN, of 117 Middlesex Street, London, England, Engineer. A new or improved method of connecting the ends of driving-belts, and means for suitably forming the ends.

Claims.—(1.) A fastening for uniting the ends of driving-belts, in which at one end tapering fingers are provided, on the sides of which claw-shaped projections are formed, the other end of the belt being provided with side-notched recesses adapted to fit the claw-provided fingers in such a manner that the claws and notches interlock and prevent the withdrawal from one another of the two ends of the belt in the direction of its length, the amount of the projection of the claws from the sides of the fingers being such that the sum of the projections of all the claws on any one finger is equal to a quantity which is less than the width of the finger at the root, but not appreciably less than the width at the portion of the finger where the claw nearest to the root is situated. (2.) A fastening for uniting the ends of driving-belts, in which at one end tapering fingers are provided, on the sides of which claw-shaped projections are formed, the other end of the belt being provided with side-notched recesses adapted to fit the claw-provided fingers in such a manner that the claws and notches interlock and prevent the withdrawal from one another of the two ends of the belt in the direction of its length, the configuration being such that, of one finger, the claws are so arranged that not more than one claw is situated in the same transverse section of the belt. (3.) A fastening for uniting the ends of driving-belts, in which at each end tapering fingers are provided, on the sides of which claw-shaped projections are formed, the spaces between the fingers on either end constituting side-notched recesses adapted to fit the claw-provided fingers of the other end, a half finger being formed on each end of the belt. (4.) A belt-fastening according to claim 3, in which a portion near the extremity of one half finger is connected to a similarly situated portion of the other by an obliquely directed tie. (5.) A fastening for uniting the ends of driving-belts, in which at each end tapering fingers are provided, on the sides of which claw-shaped projections are formed, the spaces between the fingers on either end constituting side-notched recesses adapted to fit the claw-provided fingers of the other end in such a manner that the claws and notches interlock and prevent the withdrawal from one another of the two ends of the belt in the direction of its length, the bases or roots of the fingers formed on each end extending