2210
THE NEW ZEALAND GAZETTE.
[No. 78

the method described, which consists in the practically continuous transmission and reception of electro-magnetic waves or impulses, normally of a predetermined character, and continuously modifying or changing the character of such waves or impulses without interruption of their continuity, substantially as set forth. (12.) As an improvement in the art of transmitting sounds by electro-magnetic waves, the method described, which consists in the generation of electro-magnetic waves or impulses, normally of uniform character, and modifying or varying the character of such waves or impulses by sound waves or impulses without interruption of their continuity, substantially as set forth. (13.) As an improvement in the art of signalling by electro-magnetic waves, the method described, which consists in the practically continuous transmission and receipt of electro-magnetic waves, and modifying the character of said waves at the sending-station without interrupting their continuity, substantially as set forth. (14.) As an improvement in the art of signalling by electro-magnetic waves, the method described, which consists in the practically continuous generation of electro-magnetic waves or impulses of constant periodicity, and modifying or changing the intensity of such waves or impulses without interrupting their continuity, substantially as set forth. (15.) As an improvement in the art of signalling by electro-magnetic waves, the method described, which consists in the practically continuous generation of electro-magnetic waves or impulses of constant periodicity, and modifying or changing the intensity of such waves or impulses by changing the resistance of the sending conductor without interrupting the continuity of the waves, substantially as set forth.
(Specification, 9s. 6d. ; drawings, 2s.)

No. 15381.—8th September, 1902.—ROBERT WOOLLEY GIBBS, of Tasman Street, Nelson, New Zealand, Carpenter, and THOMAS HECTOR MANSON, of Nile Street, Nelson aforesaid, Carter. A new improved truss for rupture.

Description.—Consists of a flat steel spring 5 or more inches in length and ⅜ in. in width, and thickness of ordinary clock-spring, and a similar piece 3 in. in length riveted to the centre of one side of the 5-in.-length piece, as in letter A drawing accompanying this specification. Four ⅛ in. holes are drilled into this combined spring at equal distances apart, which is then covered with fine leather with corresponding holes as above spring contains, as in letter B. The spring B is attached to centre of each pad of truss, two screws in each end, which fixes the spring firmly to the pads, as in letter C. A curvature or bow being given to the combined spring A, and outwards at its ends secured to each pad of the truss, gives the tension or pressure over the ring of the rupture when the side strap D draws the belt or band of the truss tight or slack together, keeping the pads on to the ring of the rupture in whatever movement the body may be inclined, as in letters C, C.

Claim.—For the make and design of the combined spring of any suitable material for the same and for the way, shape, and method of placing the spring upon the front of pads of rupture-trusses, for and in the manner described.
(Specification, 1s. 3d. ; drawings, 1s.)

No. 15383.—11th September, 1902.—Sir OLIVER JOSEPH LODGE, Knight, D.Sc., F.R.S., of Edgbaston, Birmingham, Warwick, England; ALEXANDER MUIRHEAD, of Shortlands, Kent, England, D.Sc., Telegraph Engineer; and EDWARD ERNEST ROBINSON, of Edgbaston aforesaid, Electrician. Receivers for wireless telegraphy.

Claims.—(1.) In combination, in a coherer, two conducting-surfaces, a film of fluid insulating-material between such surfaces capable of being broken down upon the occurrence of an ethereal wave in the neighbourhood, and automatic means serving to renew such film. (2.) In combination, in a coherer, two conducting-surfaces, a film of fluid insulating-material between such surfaces, and means serving to impart motion to one of the conducting-surfaces for the purpose of restoring the continuity of the film whenever it is broken down by an ethereal wave. (3.) In combination, in a coherer, two conducting-surfaces one of which is solid and the other of which is fluid, a film of insulating-material between such surfaces capable of being broken down upon the occurrence of an ethereal wave in the neighbourhood, and means serving to renew such film. (4.) In combination, in a coherer, two conducting-surfaces one of which is solid and the other of which is fluid, a layer of fluid insulating-material upon the fluid conductor, means serving to immerse the solid conductor into the fluid one so that a film of the fluid insulating-material is between the conductors, and means serving to renew the last-mentioned film whenever it is broken down by an ethereal wave. (5.) In combination, in a coherer, two conducting-surfaces one of which is solid and the other of which is mercury, a layer of fluid insulating-material upon

the mercury, means serving to immerse the solid conductor into the mercury so that a film of the fluid insulating-material is between the conductors, and means serving to renew the last-mentioned film whenever it is broken down by an ethereal wave. (6.) In combination, in a coherer circuit, a battery, a recorder-coil, and a coherer comprising two conducting-terminals separated by a renewable film of fluid insulating-material, one of the conducting-terminals being carried by or attached to the recorder-coil. (7.) In combination, in a coherer circuit, a battery, a resistance shunt around the battery, and a coherer comprising two conducting-terminals separated by a renewable film of fluid insulating-material. (8.) In combination, in a coherer circuit, a battery, a coherer comprising two conducting-terminals separated by a film of fluid insulating-material, and means, actuated either from the coherer circuit itself or extraneous from such circuit, serving to restore the continuity of such film whenever it is broken down by an ethereal wave. (9.) In combination, in a coherer circuit, a battery, a coherer comprising two conducting-terminals separated by a film of fluid insulating-material, means actuated from the coherer circuit itself serving to restore the continuity of such film whenever it is broken down by an ethereal wave, and a siphon recorder in series in the said circuit. (10.) In combination, in a coherer, two conducting-surfaces, a film of fluid insulating-material between such surfaces, a vibrating body to which one of the conducting-surfaces is attached, and means to vibrate the said body whereby the continuity of said film is restored after having been broken down by an ethereal wave. (11.) In combination, in a coherer, a trough, a pool of mercury forming one terminal of the coherer in such trough, a layer of fluid insulating-material above the mercury, a disc forming the other terminal of the coherer located partly within the mercury and said fluid insulating-material respectively, and means to rotate the disc so that the continuity of the said film is restored after having been broken down by an ethereal wave. (12.) Coherers and coherer circuits constructed, arranged, and operating substantially as described and illustrated in the drawings.
(Specification, 6s. 9d. ; drawings, 1s.)

No. 15384.—11th September, 1902.—WILLIAM ALGERNON EDE-CLENDINNEN, of 54, Elphin Grove, Glenferrie, Victoria, Surgeon-Dentist. Improved nicotine-trap and smoke-cooling appliance for tobacco-pipes and cigar-holders.

Claims.—(1.) A chamber A, as specified, constructed with two internal trap projections or bosses a provided with holes a¹ and with a third hole as a² furnished with a movable plug as D, as and for the purpose described and substantially as shown. (2.) A chamber as A of an elliptical section, having holes formed about its conjugate axis to receive the inwardly projecting trap-nipples as b and c of pipe or cigar-holder stems, and said chamber being, if desired, jointed at A¹, substantially as described and shown. (3.) A chamber as A of an elliptical section having trap bosses as a formed about holes a¹ lying in axial line with the conjugate diameter of said chamber, and which latter is jointed as at A¹ substantially as described and shown. (4.) A chamber as A of an elliptical section having three holes, two to receive the inwardly projecting trap nipples of pipe or cigar-holder stems and the third to receive a movable plug, said holes being of uniform size so that the parts are interchangeable, substantially as described and shown. (5.) In combination, the chamber as A having internal trap bosses a, a, provided with holes a¹, hole a² at about right angles to said trap bosses and provided with a movable plug D, said holes being of uniform size and designed to fit either the bowl-stem nipple b, mouthpiece-stem nipple c, or the movable plug D, substantially as described and shown. (6.) In combination, the chamber as A furnished with trap bosses a, a, hole a², movable plug D, mouthpiece-stem C, the nipple c of which projects through hole a² far enough to form a trap, and the nipple of bowl junction-piece E, substantially as described and shown. (7.) In combination, the elliptical-section chamber as A, furnished with traps consisting of the internally projecting nipples on the holder F and mouthpiece C of a cigar or cigarette holder, said nipples passing through the holes a¹, a¹, and said chamber being either with or without the cleaning-hole and movable plug, substantially as described and shown.
(Specification, 4s. 6d. ; drawings, 1s.)

No. 15385.—11th September, 1902.—ERIC OLOV RISSTROM, of Murchison Street, Rushworth, Victoria, General Salesman. Improvements in show-stands for axes and the like.

Claims.—(1.) In a stand of the class indicated, the lower tier for holding axes substantially in the positions set forth. (2.) In a stand of the class indicated, the upper tier for holding axes substantially in the positions set forth. (3.) In a stand of the class indicated, the lower and upper tiers in combination for holding axes substantially as set forth. (4.) In a stand of the class indicated, the combinations of the parts a to g substantially as set forth. (5.) In a stand