392
THE NEW ZEALAND GAZETTE.
[No. 19

pivoted frame such as C, operated substantially as described and explained, and as illustrated in Figs. 1 and 2. (3.) The improved means for igniting gas-burners consisting of a pivoted lever carrying a contact-piece, the spindle on which the said lever is pivoted also forming the plug of a valve for controlling the admission of gas from a supply-pipe, and a contact piece or pin adjacent to the gas-orifice, substantially as described and explained. (4.) In an electric igniter for gas-burners, the combination with a gas-burner or orifice of an electric contact piece or pin such as T adjacent to the said orifice, spring contact piece or pin such as O¹, on a lever such as O, pivoted on a spindle such as V, the said spindle also forming the plug of a gas-admission valve such as S, substantially as described and explained, and as illustrated in Figs. 3 and 4 of the drawings.
(Specification, 3s. 6d.; drawings, 1s.)

No. 13249.—13th December, 1900.—MARTIN LYON MOORHOUSE, of Collins Street, Hobart, Tasmania, Signpainter; HENRY JAMES DYSON, of Macquarie Street, Hobart aforesaid, Contractor; and JAMES CRANE, of Campbell Street, Hobart aforesaid, Broom-manufacturer. A combined machine and appliances for removing barnacles and other marine growths from the hulls of vessels while either afloat or in dry dock.

Claims.—(1.) The machine for cleaning the hulls of vessels, substantially as set forth in the specification and drawings. (2.) The combined machine, and appliances to actuate the same, substantially as set forth in the specification and drawings. (3.) The machine with brushes or knives, or with brushes and knives, substantially as set forth in the specification and drawings.
(Specification, 10s.; drawings, 1s.)

No. 13272.—27th December, 1900.—JOHN HENDERSON, of Hawera, Taranaki, New Zealand, Saddler. Improved spring or block dray shaft-tug.

Claim.—(1.) My improved shaft-tug substantially as or for the purposes described, and as illustrated on drawings. (2.) A shaft-tug made of iron, and provided with a hook such as A, and eye such as B, and a triangle such as C, substantially as described, and as illustrated on drawings.
(Specification, 1s.; drawings, 1s.)

No. 13277.—28th December, 1900.—ELMER GATES, of Chevy Chase, Montgomery County, Maryland, United States of America, Scientist. Method and apparatus for separation of paramagnetic and diamagnetic materials.

Claims.—(1.) The method of separating diamagnetic material from paramagnetic material consisting in feeding the composite mass upon a surface located in a field of magnetic force whose lines extend in a wavy, crooked, zigzag, or tortuous direction, and so graduating the magnetic force that the paramagnetic material will arrange itself in moss-like or frond-like structures, from which the diamagnetic particles will be liberated, disentangled, and separated by moving said composite mass through the field of force, and concurrently shifting the position of said structures in transit. (2.) The method of separating diamagnetic material from paramagnetic material consisting in feeding the composite mass upon a moving surface located in a field of magnetic force whose lines extend in a wavy, crooked, zigzag, or tortuous direction, and so graduating the magnetic force that the paramagnetic material will arrange itself in moss-like or frond-like structures, from which the diamagnetic particles will be liberated, disentangled, and separated by the constant shifting of the position of said structures in transit through said field of force. (3.) Apparatus for separating diamagnetic material from paramagnetic material, comprising a magnet pole-piece having a wavy, crooked, zigzag, or tortuous arrangement or distribution of its lines of force, combined with a moving surface passing in front of said pole-piece. (4.) Apparatus for separating diamagnetic material from paramagnetic material, comprising a magnet pole-piece having a wavy, crooked, zigzag, or tortuous arrangement or distribution of its lines of force, combined with a moving surface passing in front of said pole-piece, and means for shaking or agitating said surface. (5.) Apparatus for separating diamagnetic from paramagnetic material, comprising a magnet pole-piece having a wavy, crooked, zig-

zag, or tortuous arrangement or distribution of its lines of force, the magnetic field thus established diverging or branching from each other, combined with a moving surface passing in front of said pole-piece; means for feeding the material to be separated on to the surface at one end of the magnetic field, and means for separately collecting the separated material at the ends of the diverging branches of the field of force and at the intermediate spaces. (6.) Apparatus for separating diamagnetic material from paramagnetic material, comprising a pole-piece grooved or recessed to produce a crooked, wavy, zigzag, or tortuous arrangement or distribution of its lines of force, combined with a moving surface passing in front of said pole-piece. (7.) Apparatus for separating diamagnetic material from paramagnetic material, comprising a pole-piece of cylindrical form, having a crooked, wavy, zigzag, or tortuous arrangement or distribution of its lines of force, combined with a moving surface travelling around said cylinder. (8.) Apparatus for separating diamagnetic material from paramagnetic material, comprising a magnet pole-piece having a wavy, crooked, zigzag, or tortuous arrangement or distribution of its lines of force, combined with a surface in proximity to said pole-piece, on to which surface the composite mass is fed, and means for causing a movement of said pole-piece and surface relative to each other.
(Specification, 8s.; drawings, 7s.)

No. 13317.—15th January, 1901.—JAMES PALMER CAMPBELL, of Wellington, New Zealand, Registered Patent Agent (nominee of Francis Ludlow Clark, of 7204, Thomas Street, Pittsburg, Pennsylvania, United States of America, Engineer). Improvements in electro-magnetic brakes.

Claims.—(1.) For cars having two trucks, a brake-mechanism comprising a rail-shoe, wheel-shoes for the wheels of the different trucks, and connections by which the wheel-shoes of all of the trucks will be operated by the application of the rail-shoe. (2.) Electro-magnetic brake-apparatus of the kind described applicable for cars having a single truck in which the wheel-shoes are provided with brake-levers connected by a chain passing over pulleys, said brake-levers being in operative connection with the rail-shoe, substantially as and for the purpose specified. (3.) An electro magnetic brake-apparatus having wheel-shoes and a rail-shoe with a single connection to the levers operating the wheel-shoes, by means of which connection the wheel-shoes are applied when the rail-shoe is moved in either direction relatively to the car. (4.) In an electro-magnetic brake-apparatus of the kind described, a lever having a shifting fulcrum, and adapted when moved in either direction to cause the wheel-shoes to be applied to the wheels, substantially as described. (5.) An electric brake-mechanism constructed and operating substantially as described with reference to Figs. 1, 2, and 3 of the drawings. (6.) An electric brake-mechanism in which a rail-shoe and wheel-shoes are provided, the rail-shoe being in operative connection with brake-levers for applying the wheel-shoes, which levers are further connected by levers having cam faces, so that the operation of one brake-lever insures the operation of the other brake-lever, substantially as described with reference to Figs. 4, 5, and 6 of the drawings. (7.) Electro-magnetic brake-mechanism constructed substantially as described with reference to Fig. 7 of the drawings. (8.) For use with cars having two trucks, electro-magnetic brake-mechanism for applying brake-shoes to the wheels of both the trucks, constructed and operated substantially as described with reference to the drawings.
(Specification, 9s. 6d.; drawings, 3s.)

No. 13321.—17th January, 1901.—WILLIAM H. SMYTH, of Berkeley, Alameda, California, United States of America, Mechanical Engineer. Improvements in mechanical stokers.

Claims.—(1.) A mechanical stoker, comprising a rotating horizontal device having radiating blades within a casing and a deflecting-plate in the path of the fuel thrown by the blades, adapted by its oscillation to distribute the material to a greater or less distance. (2.) A mechanical stoker, comprising a rotating horizontal device within a casing, and a deflecting-plate in the path of the material thrown by the rotating device, adapted by its oscillation to deflect said material at various angles, and a feed-hopper provided with breaking rolls. (3.) A mechanical stoker, comprising a rope-driven rotating fuel-throwing horizontal device, with means for holding the rope out of working contact therewith, a plate in the path of the material thrown adapted by its movement to distribute the material, a feed-device provided with breaking-rolls and driving-connections engaging with rotating-