Mar. 6.] THE NEW ZEALAND GAZETTE. 573

No. 13772.—27th June, 1901.—JOHN FREDERIC RUSSELL GWATKIN, of The Peaks, Canterbury, New Zealand, Farmer. Improved apparatus for sowing agricultural seeds.*

Claims.—(1.) In apparatus for the purpose indicated, a disc having teeth or serrations upon its circumferential periphery, the recesses between the teeth being each designed to carry a seed, substantially as and for the purposes specified and illustrated. (2.) The improved apparatus for sowing seeds consisting of the parts arranged, combined, and operating substantially as described and illustrated. (3.) In apparatus for sowing seeds, a disc having teeth upon its circumferential periphery, the recesses between the teeth being designed to carry seed, and said recesses being bevelled laterally to facilitate the falling of the seed therefrom, substantially as and for the purposes described and illustrated. (4.) The combination in apparatus for the purpose described of a disc having teeth upon its circumferential periphery, a plate arranged beneath a seed-hopper having a slot to receive the upper part of the said disc, and upwardly projecting bridge-pieces upon the upper side of said plate upon each side of the disc, substantially as and for the purposes specified and illustrated. (5.) The combination in apparatus for the purpose described of a disc having teeth upon its circumferential periphery, a plate arranged beneath the seed-hopper having a slot to receive the upper part of the disc, upwardly projecting bridge-pieces upon the upper side of said plate upon each side of the disc, and bevelled pieces at the ends of the slot, substantially as and for the purposes specified and illustrated. (6.) In apparatus for the purpose described, the combination of discs having teeth upon their circumferential periphery, the recesses between the teeth being designed to carry seed, and said recesses being bevelled laterally to facilitate the falling of the seed therefrom, and a hinged cover capable of being held in a vertical position or of turning over towards either of the discs as desired, substantially as and for the purposes set forth.
(Specification, 3s. 6d.; drawings, 1s.)

No. 13816.—13th July, 1901.—CHARLES MAY, of Dunedin, New Zealand, Mechanical Electrician. Improved electrical apparatus for ascertaining the level of liquids.*

[NOTE.—The title in this case has been altered. See list Provisional Specifications, Gazette No. 71, of the 25th July, 1901.]

Claims.—(1.) An apparatus for ascertaining the level of liquids consisting of two conductors immersed in the liquid, means for passing an electric current through the conductors, and means for finding the resistance to the current, substantially as set forth. (2.) An apparatus for ascertaining the level of liquids consisting of two parallel conductors immersed in the liquid, means for passing an electric current through the conductors, and means for finding the resistance to the current, substantially as set forth. (3.) An apparatus for ascertaining the level of liquids consisting of a tube containing water and pivoted at one end, two conductors held in the tube, means for passing an electric current through the conductors, and means for finding the resistance to the current, substantially as set forth. (4.) An apparatus for ascertaining the level of liquids consisting of a tube containing water and pivoted at one end, a rod of insulating material in the tube, two parallel conductors attached to the rod, means for passing an electric current through the conductors, and means for finding the resistance of the current, substantially as set forth. (5.) An apparatus for ascertaining the level of liquids consisting of a tube containing water and pivoted at one end, a rod of insulating material in the tube, two parallel carbon conductors attached to the rod, a battery and a galvanometer for indicating the resistance of the circuit to a current from the battery, substantially as set forth.
(Specification, 2s. 6d.; drawings, 1s.)

No. 13939.—26th August, 1901.—DAVID LEVAT, of 174, Boulevard Malesherbes, Paris, France, Mining Engineer. Improvements in dredgers especially suitable for use with auriferous and other alluvial earth.*

Claims.—(1.) In a dredger suitable for working auriferous, platiniferous, stanniferous, diamond-bearing, or other alluvial earth containing metals, minerals, or useful or precious materials in granular, crystalline, or like form, a rotating cylindrical or conical sizing-trommel, provided, in addition to its ordinary washing-apparatus, with several nozzles attached to the delivery-pipe of a force-pump, and discharging jets of water under pressure obliquely and in a direction opposite to that of the natural flow of the materials, so that the refuse when discharged from the trommel will be free from traces of clay or sand and in a clean state as if brushed by hand. (2.) In a dredger such as referred to in the preceding claim, the use for the purpose of loosening soil or earthy matter which the dredger is to excavate of hydraulic jets fed by a force-pump, which may if desired be the same as that which feeds the nozzles of the sizing-trommel mentioned in the preceding claim. (3.) In a dredger according to the preceding claims, a sluice provided with fluid-current regulators adapted to obviate sudden flushes of water resulting from movements of the dredger, or from any other cause, liable to effect a variation in the discharge of water in the said sluice, the regulators being formed of pieces secured across the sluice so as to touch or to dip just under the surface of the fluid when the quantity of the latter is normal. (4.) In a dredger, whether of the kind referred to in the preceding claims or not, the provision of a chain of buckets forming an elevating conveyor of ordinary kind to discharge material at the stern of the dredger as set forth, with an extension or supplementary conveyor, and above the said extension or supplementary conveyor a valve placed in the discharge-hopper of the excavating-buckets of the dredger, and adapted to direct material from the said buckets either to the said trommel or to the said extension or supplementary conveyor, as desired. (5.) The combination with a dredger such as referred to in claim 1 of apparatus substantially as described with reference to and shown in the drawings.
(Specification, 10s. 6d.; drawings, 2s.)

No. 14171.—29th October, 1901.—ALLAN JOHN ROSS, of Kihikihi, Waikato, New Zealand, Settler. An improved instrument for cutting the teats of cows and other animals.*

Claims.—(1.) In means for cutting the teats of cows and other animals, a pair of blades hinged together and provided with handle-extensions by which they may be operated, such blades being made with sides tapering outwards and with sharpened outer edges, and so arranged that when closed they shall lie uniformly beneath one another, as specified. (2.) In means for cutting the teats of cows and other animals, a pair of blades hinged together and provided with handle-extensions by which they may be operated, such blades being made with sides tapering outwards and with sharpened outer edges, and so arranged that when closed they shall lie uniformly beneath one another, in combination with a set screw passing loosely through one extension and screwing into the other, by means of which the distance the blades can be opened may be regulated, as set forth.
(Specification, 2s.; drawings, 1s.)

No. 14227.—14th November, 1901.—WILLIAM ERNEST HUGHES, of Queen’s Chambers, Wellington, New Zealand, Patent Agent (nominee of Frank Bunker Gilbreth, of 176, Federal Street, Boston, Massachusetts, United States of America). An improved concrete-mixer.

Claims.—(1.) A gravity concrete-mixer comprising an inclined shoot having a concave bottom, and sides vertical thereto, a hopper at the upper end of the shoot, mixing-members consisting of vibratory pins inclined upwards from the bottom of the shoot in the direction of the hopper, and lateral vibratory plates parallel with the pins, a spray-pipe or spray-pipes for delivering water-spray into the shoot below the hopper, converging sides at the lower end of the shoot, and a swing gate at the bottom of the shoot adapted to temporarily close the outlet from the converged sides, constructed substantially as described. (2.) In the concrete-mixer described in the specification, means for varying the length of the shoot, consisting in constructing it with a plurality of sections diagonally and transversely divided, contiguous sections being connected by swing bolts and nuts, each swing bolt being pivoted in a lug on one section and engaging by its nut with a lug on the next section, substantially as described. (3.) In the concrete-mixer described in the specification, vibratory pins fitted with screw-nuts at their upper ends and having their heads below the bottom of the shoot constructed at an angle to the axis of the pins, substantially as and for the purpose set forth with reference to Fig. 9 of the drawings. (4.) In the concrete-mixer described in the specification, lateral deflecting vibratory plates constructed and arranged substantially as and for the purpose set forth. (5.) In the concrete-mixer described in the specification, a door adapted to close the lower end of the shoot, the said door being provided at one of its upper angles with a diagonally extending handle in the plane of the door, substantially as and for the purpose set forth. (6.) In the concrete-mixer described in the specification, a transversely arranged spray-pipe within the upper and enclosed part of the shoot, a shield therefor, and service-pipes connected therewith, substantially as set forth. (7.) In the concrete-mixer described in the specification, a transversely arranged and shielded spray-pipe near the hopper, an auxiliary spray-pipe parallel therewith lower down the shoot, and service-pipe connected