2254
THE NEW ZEALAND GAZETTE.
[No. 103

Notice of Acceptance of Complete Specifications.

Patent Office,
Wellington, 6th December, 1899.

COMPLETE specifications relating to the under-mentioned applications for Letters Patent have been accepted, and are open to public inspection at this office. Any person may, at any time within two months from the date of this Gazette, give me notice in writing of opposition to the grant of any such patent. Such notice must set forth the particular grounds of objection, and be in duplicate. A fee of 10s. is payable thereon.

No. 11382.—15th February, 1899.—WILLIAM ANDREWS and ARTHUR WARD BEAVEN (trading as “Andrews and Beaven”), of Christchurch, New Zealand, Agricultural Engineers. Improvements in seed-cleaning machines.*

Claims.—(1.) The improvement in seed-cleaning machines consisting in the combination and arrangement of parts whereby the vibration of a riddle or riddles in one direction is counterbalanced by corresponding movement of a riddle or riddles in the opposite direction, substantially as and for the purposes described and illustrated. (2.) In a seed-cleaning machine, the combination with superposed riddles, suspended upon spring hangers whereby they are permitted to vibrate, of bell-crank levers fixed upon rocking shafts extending transversely across the machine, means for connecting said bell-cranks to said riddles, and means for actuating the bell-cranks whereby motion imparted to one riddle or a pair of riddles is counterbalanced by corresponding motion of another riddle or pair of riddles in the opposite direction, substantially as and for the purposes described, and illustrated in the drawings. (3.) A seed-cleaning machine having four pairs of riddles arranged as described, a crank-shaft extending transversely across the machine, and actuating connecting-rods connected to and operating bell-crank levers arranged above and below the crank-shaft, and connected to suspended vibratable riddles, substantially as and for the purposes specified, and illustrated in the drawing. (4.) The combination with a pair of riddles of a seed-cleaning machine of a double bell-crank lever connected to each of the riddles by a separate connecting-rod, and means for rocking said bell-crank, substantially as specified and illustrated.
(Specification, 4s. 6d.; drawings, 3s.)

No. 11393.—23rd February, 1899.—JOHN GORE MASSIE, C.E.M.E., of Belleville, Illinois, United States of America, Engineer. An improved system of opening up, working, and ventilating mines, and apparatus therefor.*

Claims.—(1.) The described method of ventilating mines, by conducting a separate current of fresh air from a downcast shaft or compartment of a shaft to each section or individual set of workings on each level of the mine through its own distinct passage or drive, and then exhausting the foul air from such section or set of workings through a separate passage to an upcast shaft or compartment, so that the foul air from one section or set of workings will not be brought into contact with the miners in any other section or set of workings, substantially as described and explained, and as illustrated in the drawings. (2.) In apparatus for use in the ventilation of mines, an overcast comprising an open-ended box or cylinder fitted with a pivoted flap or door whereby it can be more or less opened or closed, said cylinder being fitted across the upper part of the drives along which the intake air is passing, substantially as described and explained, and as illustrated in the drawings. (3.) In apparatus for use in the ventilation of mines, a regulator as C, fitted with a sliding-door as c², adapted to be secured in any desired position by means of a pin as c³, passed through and secured within openings through said door and the framework as c', in which it slides, substantially as and for the purposes described and explained, and as illustrated in the drawings. (4.) In apparatus for use in the ventilation of mines, a fan, the width of whose vanes equals one-third the diameter of the fan, and which vanes are set back or inclined rearwardly 1 in 4, and formed to a curve described by the radius of the fan, substantially as and for the purposes described and explained, and as illustrated in the drawings. (5.) In apparatus for use in the ventilation of mines, a fan whose outlet is fitted with an adjustable shutter as G, whereby the outlet therefrom can be enlarged or diminished at will, substantially as and for the purposes described and explained, and as illustrated in the drawings.
(Specification, 5s. 6d.; drawings, 11s.)

No. 11428.—7th March, 1899.—RICHARD STEVENS, of 183, Hereford Street, Christchurch, New Zealand, Cooper. Improved means for preventing a person’s foot from becoming wedged in railway-points and check-rails.*

Claims.—(1.) The improved means for preventing a person’s foot from becoming wedged in railway-points and the like, consisting in the device or combination of devices substantially as specified and illustrated. (2.) The improved means for preventing a person’s foot from becoming wedged in railway-points and the like, consisting of a metal filling-piece secured in position by bolts passed through the rails, substantially as and for the purposes described, and illustrated in the drawings.
(Specification, 3s. 9d.; drawings, 3s.)

No. 11493.—29th March, 1899.—HARRY PHILLIPS DAVIS, of 327, Neville Street, Pittsburg, Pennsylvania, United States of America, Electrical Engineer. Improvements in circuit-breakers.*

Claims.—(1.) A circuit-breaker consisting of two members hinged together, and also connected by a fuse-wire, through which the current is caused to pass, so that when the wire breaks the members separate and a large gap is formed between the terminals of the circuit. (2.) In a circuit-breaker of the kind described, clamping one or both ends of the fuse-wire in such a manner that said fuse-wire can be released by pulling a cord or the like, substantially as described. (3.) The means for detachably connecting a circuit-breaker to a circuit substantially as described. (4.) Circuit-breakers constructed substantially as described with reference to the drawings.
(Specification, 4s.)

No. 11877.—8th August, 1899.—ARTHUR MORROW, of Auckland, New Zealand, Gentleman. An improved fish-hook.*

Claims.—(1.) In a fish-hook, the crinkled, twisted, or turned portion being part of the shank of the fish-hook, for the purpose set forth, substantially as described and as illustrated. (2.) In a fish-hook, the crinkled, twisted, or turned piece being a separate part slidably adjusted on to the shank of the fish-hook, for the purpose set forth, substantially as described and as illustrated.
(Specification, 1s. 6d.; drawings, 3s.)

No. 11909.—17th August, 1899.—GEORGE WOOLHOUSE, of Ross, Westland, New Zealand, Sawmiller. An improved feed-regulator for tables used in the treatment of auriferous sand.

Claim.—The use of a conical-shaped body for distributing and regulating the feed of tables used in the treatment of auriferous sand.
(Specification, 1s.; drawings, 3s.)

No. 12147.—2nd November, 1899.—DENNIS WILLIAM COTTON, Miner, and JULIUS FREDRICK WILLIAM HENRY SCHA-DICK, Surveyor, both of Westport, New Zealand. Wooden blocks saturated with quicksilver for gold-saving.

Claim.—The utilisation of wooden blocks saturated with quicksilver, to take the place of copper plates, plush, and iron gratings now in use for gold-saving, as described.
(Specification, 1s.)

No. 12174.—13th November, 1899.—MEYER JOSEPH DAVID-SEN, of 29, Vestergade, Copenhagen, Denmark, Civil Engineer. Improvements in mills for pulverising, or pulverising and mixing, cements and other substances.

Claims.—(1.) A ball mill, wherein an approximately horizontal tubular vessel able to rotate about its axis is divided into two or more main ball-containing chambers by partitions or divisions, each of which is formed with cells or pockets adapted, during rotation, to receive material from the lower portion of the rearward main chamber, and to discharge it at a higher level into the next main chamber in advance, substantially as described. (2.) A ball mill of the kind specified in claim 1, wherein each partition or division comprises an annularly arranged series of cells or pockets having lateral inlet-openings near the wall of the main chamber in rear thereof, and openings in their internal walls, through which the material is discharged at a higher level into the next main chamber in advance, substantially as described. (3.) Ball mills constructed, arranged, and operating substantially as described, and illustrated in Fig. 1, the partitions or divisions being constructed as shown in and described with reference to Figs. 2 and 3 or Figs. 4 and 5 respectively of the drawings.
(Specification, 3s. 9d.; drawings, 8s.)

No. 12181.—15th November, 1899.—JAMES MACALISTER, of Invercargill, Southland, New Zealand, Engineer. Subsoil attachment for single-furrow and other ploughs.