1206

THE NEW ZEALAND GAZETTE.

[No. 31

the purpose specified, and also consists in certain peculiarities in the construction thereof whereby the same may be most readily and easily applied to and removed from the head, all substantially as described and particularly pointed out in the claims.

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

(Specification, 4s. 6d.; drawing, ls.)

No. 24080.--4th March, 1908.--FREDERICK AUGUST DEUNERT, of Kyabram, Victoria, Australia, Wheelwright, and JAMES JOHN JACKSON, of Kyabram aforesaid, Plumber. Improvements in tire-inflation mechanism.

Extract from Specification.--This invention relates to improved means for inflating pneumatic tires, and consists in certain attachments for wheels having such tires. The motion of the wheel will when required, as in other inventions, actuate a pump or inflator, and when the tire has become inflated to the desired degree a whistle will be sounded as a signal to the cyclist or driver or the like that the pumping may or should be stopped; while if the tire happens to be leaking through a puncture the pumping may be continued simultaneously with the leakage, and in this way it may not become necessary, as under other circumstances it would be, to stop and repair the tire, nor is there any stopping to inflate a tire which does not leak. But in the details of this invention there are important novel combinations of parts which result in practical utility not heretofore so attained. The strains such mechanism will be subjected to are provided for; the dust and dirt that will accumulate can be readily removed--in fact, the whole attachment can be quickly removed and replaced whenever desired.

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

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

No. 24084.--4th March, 1908.--FRED BENNITT, of Barber Building, Joliet, Will., Illinois, United States of America, Lawyer (the assignee of Arthur Smith Dwight, of 25 Broad Street, and Richard Lewis Lloyd, of 71 Broadway, both in New York, United States of America, Engineers). Improvements in and relating to apparatus for roasting and sintering ores.

Extract from Specification.--Inasmuch as many of the incidents to a process such as is followed in employing the apparatus described and illustrated are fully presented and set forth in an application for patent in New Zealand, filed 16th October, 1907, No. 23599, it is not necessary to here repeat what is therein set forth. The present process embodies features of improvement upon the matter set forth in the aforesaid application, and the present description is related more directly thereto. In the form of apparatus illustrated in that case provision was made for passing pallets or carriers in continuous series through the region of treatment; and while the process carried out by devices of that sort is of great importance and constitutes a great advance in the art, yet better results can be attained as concerns uniformity in the treatment and accuracy in the adjustment of the several parts, as well as a great saving in labour and expense, by prolonging the series of carriers and making it endless, so that the different sections after successively passing through the region of treatment can be automatically discharged or emptied and automatically returned to the points where the series of steps is recommenced. Variations in speed can to advantage be provided for to correspond to the varying factors in the material to be treated, and the ore and its protecting layer can be more advantageously deposited by means substantially such as those set forth. Of course it will be understood that there can be many modifications without departing from the essential features of the invention, both in respect, as above remarked, to the construction and arrangement of the devices, and also in respect to the manner of using. Reference has been made to the use of lime-rock as a suitable material for the initial layer at the bottom of the ore-mass, and in this connection the following is to be noted: The bottom element of the ore-carrier, whether it be an integral grate or a separately formed apertured bottom element, should be constructed of a material capable of economically resisting the destructive agencies to the action of which it is subjected when in operation, these being hot sulphurous and other corrosive gases, water-vapour, hot metallic sulphur, and other metalloids or metals which may liquefy down from the mass of superincumbent material that is undergoing

circulated through an appliance for exhausting air, vapour, gases, and the like, the combination therewith of an air-releasing chamber as F3, floating screens as W, a well-screen as X, and a well as Y, as described and shown and for the purposes set forth.

(Specification, 9s. 3d.; drawing, 2s.)

No. 24055.--26th February, 1908.--THOMAS TILBROOK MAIN, of No. 148 Oxford Street, Sydney, New South Wales, Australia; and CHARLES WESLEY NANCE, of No. 348 Oxford Street, Paddington, Sydney aforesaid, Provision-merchants. A process serviceable with apparatus in the treatment of certain edible substances to arrest decay.

Claims.--(1.) In a process for the treatment of eggs, meat, fish, and the like by deoxygenized preserving solutions conveyed into a vessel or container holding the edible substances, and from which the air and gases have been extracted, the conjunctive arrangement of the removable baskets as K, the primary containers as B, with the stop-cocks HH and I, and the connecting-pipes FF, to convey the solution to each container, the removable cover Bl, the union B2, and induction-pipe A2 in communication with an exhausting appliance, substantially as described and illustrated. (2.) In the treatment of eggs, meat, fish, and the like by deoxygenized preserving solutions in an exhausted vessel or container, the conjunctive arrangement of the secondary containers as D, with their stop-cocks GG and connecting-pipes EE, with the primary containers as B having stop-cocks HH and I, and connecting-pipes FF, substantially as described and illustrated and for the purposes set forth. (3.) In the treatment of eggs, meat, fish, and the like, to prevent deterioration and decay, the process--serviceable with certain apparatus as described--consisting of the primary extraction of the air and gases from the said foodstuffs, and their subsequent envelopment, while in vacuo, with deoxygenized preserving solutions such as bitium dissolved in water, paraffinum molle, silicate of soda, gelatine soda bi-sulphite, or borax, substantially as described and illustrated and for the purposes set forth.

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

No. 24064.--27th February, 1908.--GEORG ULLRICH, of Broken Hill, New South Wales, Australia, Manager of the Australian Metal Company. Improvements in the magnetic separation of ores and the like, and apparatus therefor.

Extract from Specification.--In the machine which has been devised for the purpose of attaining these objects the finely divided metalliferous material to be treated is passed through a magnetic field having zones of different strength, and the various constituent parts of the ore possessing different degrees of magnetic permeability are separated one from the other in the same magnetic field, but by the different zones. The ore is passed through this field in one direction by a constantly travelling belt, which is returned in the opposite direction through the same field, but on a slightly lower plane than the active or feeding portion of the belt. The various strengths of zones in this field are produced by certain induction-rings moving in a horizontal plane, and mounted so that they can be adjusted vertically nearer to, or further from, the pole-pieces of the electro-magnets described. These adjustable separating rings operate so as to each raise ore-particles of the particular degree of magnetic permeability for which it is set, and to carry same out of the magnetic field, and then to repel said particles by a change which takes place in the polarity of the ring as it passes from one field-magnet to the other, as described.

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

(Specification, 8s. 3d.; drawing, 2s.)

No. 24079.--4th March, 1908.--GEORGE GARIBALDI TURRI, of 364-366 Collins Street, Melbourne, Victoria, Australia, Registered Patent Attorney, &c. (the nominee of Robert Rudland Bode, of Honolulu, Hawaii, Gentleman). Improved method and means for repairing the felted heads of piano-hammers.

Extract from Specification.--This invention is founded upon the discovery which I have made, that a strip of suitable soft material, such as felt or rubber, when applied to such worn heads will act to restore the original tonal qualities, and the invention, therefore, consists in such means for