Nov. 1.] THE NEW ZEALAND GAZETTE. 2891

No. 21787.—12th September, 1906.—AKTIESELSKABET BURMEISTER AND WAINS MASKIN-OG SKIBSBYGGERI, of Overgaden neden Vandet No. 9, Copenhagen, Denmark, Manufacturers (assignees of Bernhard Adolf Otto Prolius, of Torvegade No. 50, Copenhagen, Denmark, Engineer). Improvements in or relating to centrifugal drums or apparatus.

Claims.—(1.) A supply device for centrifugal apparatus, in which the liquid to be treated rises from the central chamber in distributing-pipes and passes into the separating-chamber through slots provided in said pipes, characterized by the said pipes or channels being formed by a loose casing placed over the central pipe closing and fitting the pipe at the top in a tight manner, and provided at its lower portion with a number of projections having slots or holes for the distributing of milk to the insertion or liner for the purpose of facilitating the cleaning of the distributing-channels. (2.) In a centrifugal apparatus, the complete central pipe-casing, substantially as described, or illustrated in the drawings.

(Specification, 3s. 3d.; drawings, 1s.)

No. 21789.—12th September, 1906.—JOHN THOMAS JEBB, of Mount Roskill, near the City of Auckland, New Zealand, Farmer. An improved egg-carrier for transportation and other purposes.

Claims.—(1.) In the improved egg-carrier specified consisting of the frame having four rods with holes in top thereof passed through the corners of shelves, with blocks fixed between each shelf and between lower shelf and bottom of frame, and between top shelf and top of frame, said shelves having holes made therein to carry eggs, cardboard pads fitted between said shelves and over and under top and bottom shelves for the purpose set forth, substantially as described and illustrated. (2.) In the improved egg-carrier specified, the frame covered by claim 1 in combination with box for the purpose set forth, substantially as described and illustrated.

(Specification, 3s. 6d.; drawing, 1s.)

No. 21792.—15th September, 1906.—PAUL KLEIN, of 9 Plettenbergstrasse, Riga, Russia, Engineer. An improved process of manufacturing aluminates, hydrochloric acid, and soda from aluminous materials.

Claim.—A process of manufacturing aluminates, hydrochloric acid, and soda from aluminous materials, consisting in introducing the aluminous materials in a finely pulverised state into molten sodium-chloride, blowing superheated water vapour through the fused mass when employing anhydrous raw materials, condensing the hydrochloric acid developed, separating the sodium-aluminate contained in the molten residue by lixiviation and filtration from any insoluble substances mixed therewith, conducting carbonic acid into the clear solution of sodium-aluminate, and finally filtering off the solution of soda thus obtained from the separated aluminium-hydrate.

(Specification, 3s. 3d.)

No. 21793.—15th September, 1906.—JOHN MARION RAUHOFF, of Tinley Park, Illinois, United States of America, Mechanic. Process of rendering cement or concrete blocks waterproof.

Claims.—(1.) The process of rendering cement or concrete waterproof which consists in applying to the surface of a previously formed block of cement or concrete metallic iron in the form of a fine dust held in suspension in a liquid, as water, and afterwards allowing the moist particles of iron to oxidize and expand and fill the pores in the surface of the cement, substantially as described. (2.) The process of rendering a substance waterproof which consists in applying to the surface of the substance metallic iron in the form of a fine dust held in suspension in a liquid, as water, and afterwards allowing the moist particles of iron to oxidize and expand and fill the pores in the surface of the substance, substantially as described.

(Specification, 3s. 3d.)

No. 21798.—18th September, 1906.—HARRY FRANCIS BONESTEEL, of Shannon, Montana, Ranchman, and ROBERT BRUCE RUTHERFORD, of Aurelia, Iowa, Farmer, both of the United States of America. Wire stretcher and splicer.

Extract from Specification.—In the preferred form, shown in Figs. 1 and 2, my device consists of two frames pivotally connected near one end of each, and so proportioned that the frame 1 may be positioned between and lie in the plane of the sides of the frame 2. Near the free end of each frame means are provided for drawing in or tightening a wire, cord, or similar element of a structure. As shown upon the frame 1, a rotatable pin 3 is mounted in suitable bearings for this purpose. The portion of the pin between the sides of the frame is suitably formed to operate as a drum upon which a wire or similar element may be wound to draw in or tighten the same, the ends of the pin being suitably formed to prevent its accidental displacement. Means may also be provided upon one end for suitably engaging the pin to operate the same. As shown, one end of the pin is enlarged and provided with an opening 4 into which a suitable rod or bar may be inserted for this purpose. Near the free end of the frame 2, in the form shown, the sides are brought comparatively close together and each provided with a series of ratchet teeth upon each edge. A lever 5 provided with suitable spring-actuated pawls 6, 6 is inserted in the opening between the sides of the frame 2, with the pawls 6 in position to engage the ratchet teeth. When thus arranged it is evident that by operating the lever 5 the pawls 6, 6 will alternately engage the ratchet teeth on the opposite edges of the frame and the lever will be moved toward the free end of the frame.

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

(Specification, 10s.; drawings, 3s.)

No. 21799.—18th September, 1906.—GUSTAVE RICHARD BONNARD, of 80 Coleman Street, in the City of London, England, Managing Director of Public Companies; GEORGE WILLIAM BEYNON, of Mortimer West End, Mortimer, in the County of Hants, England, Civil Engineer; and GARDINER HENDERSON MACKILLOP, of Long Marston, Stratford-on-Avon, in the County of Warwick, England, Civil Engineer. Improvements in apparatus for pulverising, crushing, stamping, and other operations performed by a weight or weights which is or are lifted and then allowed to fall.

Claims.—(1.) In apparatus for the aforesaid purposes, and in which two lifts are given to the stamp or weight, or to each stamp or weight, for each rotation of the shaft, the employment of what we have referred to as a pair of lifting-cams and as a supplementary pair of cams, the latter for giving downward impulse for each descent of the stamp or weight, or of each stamp or weight, both the pair of lifting-cams and the supplementary pair of cams being carried on one shaft, and providing the said stamp or weight, or each stamp or weight, with projections or tappets, or the equivalents, to be acted upon respectively by the said pair of lifting-cams and the said supplementary pair of cams, substantially as described. (2.) In or for apparatus for the purposes aforesaid, a lifting-cam or lifting-cams having the portion which first comes into contact with the part to be raised and the portion which last comes into contact with the said part of a quicker curvature, or one more nearly concentric, than the curvature of the portion between them, this portion between them having a quicker rise or flatter curvature, substantially as and for the purposes described. (3.) In or for apparatus for the purposes aforesaid, a supplementary or downward-impulse-giving cam or cams to act upon the stamp or weight, the portion of such cam (or each such cam) which first acts being of quicker curvature, and the portion which follows this having a quicker rise or flatter curvature, to act upon the descending stamp or weight in the manner described. (4.) In apparatus for the purposes aforesaid in which two lifts are given to the stamp or weight, or to each stamp or weight, at each rotation of the shaft, the combination of two projections or tappets, or the equivalents, on the stem of the stamp or weight, or on each such stem, and a shaft carrying both the lifting-cams and the supplementary or downward-impulse-giving cams, and a hinged lever or hinged levers through the intervention of which downward impulses are given to the stamp or weight, or to each stamp or weight, substantially as described, and illustrated in the drawings.

(Specification, 7s. 6d.; drawings, 2s.)

No. 21810.—18th September, 1906.—INNES GRANT MACFARLANE, of Ngaruawahia, New Zealand, Farmer. An improved spraying-apparatus.

Extract from Specification.—The invention consists of a cylinder or can mounted in a frame journalled to a front and back wheel, with two handles projected rearwardly, and with two arms fitted to the sides of the handles with hinge and springs so as to open out the vegetation or leaves and allow the spray from the spraying fixture on each side to play on the leaves or other vegetation, and with hook formation turned to over front wheel to assist in opening up the vegetation, also with compressed-air attachment on top