May 10.] THE NEW ZEALAND GAZETTE. 945

such as F, supported or jointed to side bars such as F3, and resting on tag-pieces such as F2, substantially as described and explained, and as illustrated in Fig. 3 of the drawings. (5.) The combination with a camera having a back frame such as D and focusing-screen frame such as E, and a hinged mirror or reflector such as F, of bellows sides such as G1, and hinged top or cover such as G, with spy-holes such as G4, substantially as described and explained, and as illustrated in Fig. 4 of the drawings. (6.) The combination with a camera having a hollow back frame such as D, and a focusing-screen frame such as E, of a mirror or reflector such as F, and the other parts forming a hood or covering therefor, substantially as described and explained, and as illustrated in Fig. 5 and in Fig. 6 of the drawings. (7.) The construction of a reflector or mirror hinged to a frame on which is a hood having a rigid or partly rigid top or cover, the whole adapted to be affixed to an ordinary camera, substantially as described and explained, and as illustrated in Fig. 7 of the drawings. (Specification, 9s.; drawings, 16s.)

No. 12562.—24th April, 1900.—SIDNEY GEORGE BROWN, of Van Buren, Poole Road, Bournemouth, Hants, England, Electrician. Improvements in and relating to telegraphic apparatus.

Claims.—(1.) In a telegraphic relay apparatus, a coil or its equivalent suspended in a magnetic field, and adapted to be moved by the main-line arrival current, and to induce a current in the relay circuit, for the purpose specified. (2.) Electro-dynamic relay apparatus in which the arrival currents are caused to vary the magnetic conditions of said apparatus in such manner that an induced current passes through the relay circuit only when the said arrival currents are received, for the purpose specified. (3.) In electro-dynamic relay apparatus of the kind hereinbefore referred to, the combination with the pole-pieces of auxiliary coils through which the line-currents pass, substantially as described and for the purpose specified. (4.) A tongue connected to one end of a relay circuit, and adapted to be moved by the arrival signalling currents so as to make and break circuit between itself and a moving surface in the relay circuit, for the purpose specified. (5.) A moving surface connected to one end of a relay circuit, and divided by insulating partitions into sections for making and breaking circuit with a tongue or tongues connected to the other end of the relay circuit, for the purpose specified. (6.) A receiving instrument short-circuited through a closed-circuit inductive coil, for the purpose specified. (7.) An inductive coil having a closed magnetic circuit, and provided with means for the initial excitation of its core, substantially as and for the purpose specified. (8.) A duplex line in which the sending-current enters a closed-circuit inductive coil in the “bridge,” which coil is adapted to short-circuit the receiving instrument, and is provided with means for adjusting the “bridge balance” for the purpose specified. (9.) A closed-circuit inductive coil placed in the fork of the “bridge” of a duplex line and in series with the receiving instrument, for the purpose specified. (10.) Apparatus constructed, arranged, and operating substantially as described with reference to any of the examples illustrated by the drawings, for the purpose specified. (Specification, £1 6s. 6d.; drawings, £2 2s.)

No. 12563.—24th April, 1900.—SOLOMON ROBERT DRESSER, of 217, South Avenue, Bradford, Pennsylvania, United States of America, Inventor. Improvement in pipe-couplings.

Claims.—(1.) The combination with a pipe-section provided adjacent to but a short distance back from its end with exterior projecting portions, and a coupling-ring provided with recessed portions to engage said projecting portions, and with an annular packing-recess, substantially as described. (2.) The combination with a pipe-section provided adjacent to but a short distance back from its end with an exterior projecting annular bead, and a coupling-ring provided interiorly with an annular groove to engage said bead, and with an annular packing-recess, substantially as described. (3.) The combination with a pipe-section provided adjacent to but a short distance back from its end with an exterior projecting annular bead, and a coupling-ring provided interiorly with an annular groove to engage said bead, and with an annular packing-recess, a second pipe-section provided with an annular exterior projecting portion, a coupling ring having an annular groove engaging said projecting portion, an annular part extending from said second pipe-section over the end of said first pipe-section and engaging said packing-ring, and coupling-bolts uniting said rings, substantially as described. (4.) The combination with a pipe-section having adjacent to but a short distance back from its end an external projecting annular bead, a coupling ring surrounding said section, provided interiorly with an annular groove
engaging said bead, and with a packing-recess, a packing-ring in said packing-recess, a second pipe-section provided at its end with a flaring portion adapted to enter said packing-recess, engage said packing-ring, and surround the end of the first pipe-section, and forming an annular shoulder, a second coupling-ring surrounding said second pipe-section, and provided with an annular recess engaging said shoulder, and coupling-bolts for drawing said rings together, substantially as described. (Specification, 5s. 9d.; drawings, £1 6s.)

No. 12565.—23rd April, 1900.—GEORGE GEOFFREY SALE, of Dunedin, New Zealand, Mining Engineer. Improved automatically self-cleansing dredge concentrator, especially for gold-bearing wash containing black sand.

Claims.—(1.) In dredge concentrators that are automatically self-cleansing, the combination of a revolving matting moving upwards or against the stream of wash on the tables such as B, working or moving into and out from water in a box such as A, with a beater for cleaning and knocking off the gold and sand working automatically, the number of blows increasing or decreasing with the altered speed of the matting, such as E, E¹, E², E³, the whole substantially as shown and described. (2.) In combination, a box for containing the wash and gold and water to a given height such as A, revolving matting running into and out of the water in the said box such as B, on rollers such as C, C¹, C², C³, C⁵, for guiding the direction and adjusting the tension, with a beater or beaters such as E, E¹, E², E³, the whole driven at the required speeds by gearing such as F, F¹, F², G, and, if needed, a belt and pulleys such as H, H, all substantially as set forth and for the purpose specified. (Specification, 3s. 9d.; drawings, 5s. 6d.)

No. 12567.—25th April, 1900.—WILLIAM PINCHES, of Wanganui, New Zealand, Architect. A solid metal batten for wire fencing.

Claims.—(1.) A solid metal fencing-batten having lugs or tongues cut and formed in same to bend round wire fencing. (2.) A solid metal fencing-batten of flat or corrugated metal having lugs or tongues cut and formed in same to bend round wire fencing. (3.) A solid metal fencing-batten, the two sides of same being corrugated and lugs or tongues cut and formed in centre portion of same to bend round fencing-wires, substantially as set forth in specification and drawings. (Specification, 1s. 6d.; drawings, 3s.)

No. 12575.—4th May, 1900.—ACHILLES PETER RIMOLDI, of Forbes, New South Wales, Engineer, and JOHN DIXON RAND, of Eulong, near Forbes aforesaid, Grazier. Improvements in unrefillable bottles.

Claims.—(1.) In unrefillable bottles, the combination with a weighted valve such as 1, having a stem such as 2, of a bearing such as 8, having a cup such as 9, the edge whereof is adapted to form a fulcrum, and a lever-weight such as 17, substantially as described and explained, and as illustrated in the drawing. (2.) The improved unrefillable bottle having all-glass closure and stoppers, substantially as described and explained, and as illustrated in the drawing. (Specification, 3s. 9d.; drawings, 8s.)

No. 12576.—4th May, 1900.—WILLIAM MATTHEWS, of Peak Hill, New South Wales, Farmer. An improved earth-scoop.

Claims.—(1.) An earth-scoop in which the various positions for filling, carrying, and emptying are obtained by means of a centrally placed lever with a pair of pivoted controlling-arms, the forward of which is provided with a spring attachment and the rearward adjusted by a pivoted rod; the lever being operated by the driver by means of a screw and gear-wheels, substantially as described and illustrated. (2.) The combination and arrangement of an earth-scoop with a door operated by a foot-lever, a centrally placed lever, a pair of controlling-arms pivoted thereto, and a hand-screw mechanism for the purpose of operating the lever, substantially as described and as illustrated. (Specification, 4s.; drawings, £1 1s.)

No. 12577.—4th May, 1900.—HENRY MARLES, late of 72, Cobden Road, Brighton, Sussex, England, but now of 87, Kensington Avenue, East Ham, Essex, England, Mechanic, and GEORGE WELLER BUTT, of Wilbury, Littlehampton, Sussex aforesaid, Manufacturer. Improvements in carving-machines.

Claims.—(1.) An improved machine for carving wood mouldings or the like consisting of a framing, brackets 22,