2632
THE NEW ZEALAND GAZETTE.
[No. 84

described. (2.) A suction-denture wherein the suction-disc is carried in a dished cavity without concealed spaces below said disc, substantially as described. (3.) A suction-denture constructed in the manner described and illustrated, containing a rubber suction-disc with edge ring seated in a dished cavity in the denture in which it is secured by means of a washer-plate and rivet.

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

No. 21656.—15th August, 1906.—HARRY PIKE, of Mount Albert, near Auckland, New Zealand, Gentleman. A child's-cot attachment to bedstead.

Claims.—(1.) In the childs’ cot attachment to bedstead specified in combination, the cot having bottom with three outer sides of cot railed in and inner side left open, adjusted to the side bar of the bedstead by stays or brackets, T pieces, thumb-screws, and washers, and to side bar of frame of mattress lying thereon by hooks or clips for the purpose set forth, as described and illustrated. (2.) In the childs’ cot attachment to bedstead covered by claim 1, the T pieces connecting the bedstead and mattress-frame by stays or brackets to cot, for the purpose set forth, as described and illustrated. (3.) In the childs’ cot attachment to bedstead covered by claim 1, the hooks or clips movably bolted to inner ends of cot for attaching said cot to mattress-frame and for detaching said cot from said mattress-frame, for the purpose set forth, as described and illustrated. (4.) In the childs’-cot attachment to bedstead covered by claim 1, the stays or brackets turnably fitted to outer ends of cot bottom and swingingly fitted to T pieces, whereby the cot can be projected downwards, for the purpose set forth, as described and illustrated.

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

No. 21661.—20th August, 1906.—BARBER’S INTERCHANGING HEEL COMPANY, LIMITED, of 38 Chancery Lane, London, W.C., England (assignees of William Barber, of No. 92 Haggerston Road, Dalston, London, N.E., England, Bootmaker). Improvements in means for securing tips, protectors, and the like to the heels and soles of boots and shoes.

Claims.—(1.) The means for securing tips and the like to the heels and soles of boots and shoes, consisting of an independent frame associated with a removable tip and arranged to exert a pressure to both hold the inner edge of the tip securely up against the opposing edge of the top-lift of the heel or sole, and also to restrain any vertical movement of said tip, substantially as specified. (2.) In means for securing tips and the like to boots and shoes, the removable tip having a horizontal, peripheral groove therein, substantially as specified. (3.) In means for securing tips and the like to boots and shoes, the combination of a curved frame hinged to the heel or sole, with a tip having its outer wall approximating in shape the curve of such frame and having a peripheral groove therein, into which said frame fits, and means for fastening said frame in its closed position with the tip abutting firmly up against the shoulder of the heel or sole, substantially as specified.

Specification, 4s.; drawing, 1s.

No. 21662.—20th August, 1906.—THE WITCH DUST-EXTRACTOR COMPANY (LIMITED), of 28 Masshouse Lane, Birmingham, England, Manufacturers, and WALTER GRIFFITHS, of 72 Conybere Street, Birmingham aforesaid, Manufacturer. Improvements in vacuum apparatus for removing dust from carpets and for other like purposes.

Claims.—(1.) In a portable vacuum apparatus for removing dust from carpets and for other like purposes, in which the exhaust is obtained by means of bellows, the improvements characterized by the arrangement and coupling of the bellows in such a manner that the weight of the operator may be utilised in obtaining the requisite power, substantially as set forth. (2.) In a portable vacuum apparatus, in which the exhaust is obtained by means of bellows, the improvements characterized by a filtering chamber which is arranged intermediately between the inlet from the nozzle and the bellows, in combination with means for obtaining access to the filtering chamber and bellows, substantially as set forth. (3.) In a portable vacuum apparatus, in which the exhaust is obtained by means of bellows operated by a pedalling action, the improvements characterized by a telescopic stem to the nozzle, substantially as and for the purpose described.

(Specification, 4s.; drawings, 3s.)

No. 21663.—20th August, 1906.—LEOPOLD BENOIT DE LAITTE, of No. 17 Middlesex Street, London, England, Engineer. Improved apparatus for the production of carburetted air for lighting and power purposes.

Extract from Specification.—The system employed is such as to require no more personal attention than that of replacing at intervals, for the vessel, when empty, which contained the volatile hydro-carbon liquid employed in the process, a fully charged vessel, the vessels thus used being the actual drums themselves, whereby the liquid is commercially distributed, thus avoiding the risk of fire and explosions which are attendant on openly pouring such liquid from one vessel to another, especially when this operation of pouring is performed at night by the aid of artificial light. The liquid in the drum, during the process of its being emptied, will undergo a gradual reduction of level, and the apparatus is adapted to eliminate any variation of pressure or richness of the gas which may otherwise be caused by the change of level. The means employed for this purpose consists in raising the liquid in small doses from a low level, into which it can gravitate from the drum, to a higher level, from which it can gravitate in company with a stream of air of precisely proportioned volume and thereby be gasified. Another important feature of the invention consists in the carburetting of the air at a temperature which is many degrees below the prevailing atmospheric temperature, thereby precluding all risk of condensation of the hydro-carbon liquid in the service-pipes leading to the places of consumption. A certain amount of motive-power is requisite for maintaining the apparatus in operation. This may be variously supplied, as by the descent of a weight which is wound-up at intervals by human labour or by an electro-motor; but, in order that the apparatus may be independent of extraneous assistance, the power may be arranged to be derived from a small neat engine whose source of energy is a small quantity of the carburetted air which is produced by the apparatus. Such an engine of simple construction will practically be one of the single-cylinder crank-and-connecting-rod type, which requires to be forcibly rotated in order to be started; and this invention comprises means for starting such an engine when the urging weight has nearly run down, and thus causes it to be again wound up, the engine power being intercepted when the weight has again been raised.

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

(Specification, 11s.; drawings, 4s.)

No. 21674.—22nd August, 1906.—GEORGE SMITH MORISON, of 29 William Street, Melbourne, Victoria, Australia, Engineer. Brake-actuating appliances to operate when a vehicle leaves the track in railroads.

Claims.—(1.) In brake appliances, a centred radially working-arm operating radially a valve-actuating spindle or rod, said arm being linked to the next respective vehicle in the train, and so arranged that upon its being rotated unduly in one direction or another the valve-actuating spindle or rod will open or close, as may be required, the brake fluid, substantially as and for the purposes set forth. (2.) In brake appliances, in combination, a sliding-rod as C having therein a shoulder-groove as U, a pawl or trigger as S, a spindle or rod as V, and means for communicating the motion from V to the valve or controlling medium of the fluid operating the brakes, substantially as and for the purposes set forth. (3.) In brake appliances, in combination, a sliding-rod as C, a hollow shaft as A centred as at B, a pawl or trigger as S, a spindle as V, a vertical hollow shaft as E, a valve as R, and means for communicating the motion from the spindle V or hollow shaft E with the said valve, substantially as and for the purposes set forth. (4.) In brake appliances, in combination, a valve-actuating spindle as V, a vertical hollow shaft as E, a valve-rod as K, means such as I for communicating movement from V or E to the said valve-rod K, a piston as P mounted upon a hollow shaft as L, and having through same a perforation as P¹, substantially as and for the purposes set forth. (5.) In brake appliances, in combination, a valve-actuating rod as K, valve as R, piston as P mounted upon a hollow shaft as L, and having ports as L² therein, a cylinder as M, a valve-seat as N, upon which a valve as O set upon the hollow spindle L may seat itself, substantially as and for the purposes set forth. (6.) In brake appliances, the general combination and arrangement of the several parts forming a complete brake-actuating appliance, substantially as and for the purposes set forth, and as illustrated on the drawings.

(Specification, 5s.; drawing, 1s.)