JUNE 27.] THE NEW ZEALAND GAZETTE. 1971

No. 21474.—19th July, 1906.—THOMAS JOSEPH WHELAN, of 182 Glenferrie Road, Hawthorn, Victoria, Australia (nominee of Henry Lane, of Wednesfield, Wolverhampton, England, Manufacturer). An improved spring steel trap for rabbits and suchlike animals.*

Claims.—(1.) In a steel-wire spring trap for rabbits and such-like animals, a short longitudinal base or bottom bar or plate A extended or projected just sufficiently clear of the end of each of the two jaws B, in combination with an extended coiled and doubled-back steel-wire spring such as C, one end of which is secured to the jaws whilst its other end is suitably fastened or connected to the said bar or plate A close to the jaws, substantially as described and illustrated, and for the purposes set forth. (2.) A steel-wire spring trap for rabbits and suchlike animals constructed and operating substantially as described with reference to the drawings, and for the purposes set forth.

(Specification, 3s. 9d. ; drawing, 1s.)

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No. 21486.—21st July, 1906.—CHARLES KING TURNER, of Happy Valley, Nelson, New Zealand, Settler. Improvements in bicycles.*

Claim.—An improvement in bicycles consisting in means for adjusting the cranks thereof, said means comprising, in combination, a sprocket wheel upon one end of the bicycle spindle, a corresponding dummy wheel upon the opposite end thereof, and a pair of bifurcated cranks and bolts for securing said cranks one to the sprocket wheel and one to the dummy wheel, substantially as described and illustrated.

(Specification, 1s. 9d. ; drawing, 1s.)

No. 21491.—19th July, 1906.—RICE OWEN CLARK, of Hobsonville, Auckland, New Zealand, Pipe-manufacturer. An improved apparatus for straightening earthenware pipes and the like.*

Claim.—The apparatus for straightening earthenware pipes specified, consisting of the rack formed of longitudinal pieces or made solid, having cross grooves sunk into or cut out of the top sides thereof and cross battens fixed in said grooves in the manner and for the purpose set forth, as described and illustrated.

(Specification, 2s. 3d. ; drawing, 1s.)

No. 21496.—23rd July, 1906.—CHARLES KING TURNER, of Happy Valley, Nelson, New Zealand, Settler. An improved swingletree coupling.*

Claims.—(1.) A swingletree coupling consisting of the parts constructed, combined, and operating substantially as described, and illustrated in the drawing. (2.) A swingletree coupling in two parts connected by a bolt which clamps them upon the swingletree, each part having a forwardly projecting hook terminating in a smaller hook, the two hooks crossing each other and forming a loop and the smaller hooks tightening upon the loop when the coupling is in use, substantially as described, and illustrated in the drawing.

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

No. 21505.—23rd July, 1906.—EDWARD LE ROY, of Devonport, near Auckland, New Zealand, Tent and Cover Maker. An improved horse-cover.*

Claims.—(1.) In the improved horse-cover specified, the shape or dart A made therein to fit in front of the hips of the animal which it will cover for the purpose set forth, as described and illustrated. (2.) In the improved horse-cover specified, the shape or dart A folded down in combination with the crease C produced upwards for the purpose set forth, as described and illustrated. (3.) In the improved horse-cover specified, the shape or dart A folded up in combination with the crease C produced downwards for the purpose set forth, as described and illustrated.

(Specification, 2s. 6d. ; drawing, 1s.)

No. 21543.—31st July, 1906.—THOMAS MITCHELL, of Wellington, New Zealand, Butcher and Meat-preserver. Improvements in or relating to ships’ hulls and the means for propelling the same.*

Claims.—(1.) In the construction of ships’ hulls, an arched tunnel or tunnels extending along the bottom surface of the hull and throughout the length thereof, such tunnel or tunnels being below the water-line of the hull and being provided at intervals with means for carrying screw propellers, substantially as and for the purposes specified. (2.) In ships’ hulls, an arched tunnel or tunnels extending along the bottom surface of the hull and throughout the length thereof, in combination with screw propellers mounted at intervals within such tunnel or tunnels and projecting into the space or spaces enclosed thereby, substantially as specified.

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

No. 21607.—9th August, 1906.—HENRY NEWMAN REID, M.S.M.E., of “Donau,” No. 228 Williams Road, Toorak, Victoria, Australia, Refrigerating Engineer. Improvements in and relating to ice floors for skating and the like, and which floor is usable for other purposes.*

Claims.—(1.) In combination with an ice floor, a cold-storage chamber or chambers and (or) an ice-making tank, the necessary heat being extracted from said cold chamber and (or) ice-tank by the refrigerating-medium which has passed through the pipes in the ice floor, substantially as described. (2.) In the production of an ice floor, the floor-pipes made up in sections or grids, each having its pipes arranged as shown to allow the inlet-flow and returned-flow lengths of pipe to lie adjacent to each other, whereby the refrigerating-medium will pass through each section in such a way as to maintain the temperature of the ice fairly uniform, substantially as described. (3.) In an ice floor for the purpose specified, the combination therewith of an ice-making tank which is operated by the refrigerating-medium which has previously passed through the ice floor, and by such means manufacturing ice as a by-product, substantially as described. (4.) In an ice floor for the purpose specified, the combination therewith of a cold-storage chamber the temperature of which may be reduced wholly or in part by the radiation from the ice floor above or by returning the refrigerating-medium through pipes in said chamber, substantially as described. (5.) In the production and maintenance of an ice floor produced by a refrigerating-medium passing through pipes arranged in sections within a shallow tank, the employment therein of broken stone, quartz, sand, screenings, and the like whereby the cost of freezing and maintaining the ice floor is considerably reduced, substantially as described. (6.) In the construction of an ice floor, constructing the tank thereof in which the circulating-pipes and broken stone, quartz, &c., are arranged of asphaltum, substantially as described. (7.) Constructing an asphaltum tank for an ice floor of the following ingredients: for the floor—asphalt, hard bitumen, soft bitumen; and for the sides—asphalt, hard bitumen, soft bitumen, and sand in the proportions and manner described. (8.) In an ice floor the circulating-pipes of which are arranged in sections or grids, controlling the operation of each inlet-valve by means of an indicator dial lying under a pointer attached to the spindle of each of said valves, substantially as described. (9.) The cooling of an ice-rink building by utilising the refrigerating machinery and the sections of pipes in the rink-tank for cooling the air conveyed through a duct formed in tank by fans, substantially as described.

(Specification, 7s. 3d. ; drawing, 3s.)

No. 21675.—22nd August, 1906.—FRANCIS HENRY MAXWELL, of Victoria Street, Kerang, Victoria, Australia, Engineer. Improvements in crushing-batteries for quartz and other rocks bearing gold or other ores.*

Claims.—(1.) In crushing-batteries, in combination, screened openings as H placed at each end of the box in addition to the usual screened opening I placed at the back of said box, stampers so arranged in said box that each end stamper will be in a lifted condition when the one next it delivers its blow, said stampers being also so set that they revolve in the directions shown by the arrows on the drawings, and means as shown for revolving the said stampers in such required directions, substantially as and for the purposes set forth.* (2.) In crushing-batteries, the general combination and arrangement of the several parts as and for the purposes described, and as illustrated on the drawings.

(Specification, 4s. 3d. ; drawing, 1s.)