1674
THE NEW ZEALAND GAZETTE.
[No. 63

No. 15089.—5th July, 1902.—NORMAN WHITMORE GRISWOLD, of Honolulu, Hawaii, Gentleman. Improvements in watering-troughs for animals.

Claims.—(1.) In a watering-trough for animals, a hinged bowl or basin adapted to be moved on its hinged bearings to a vertical position so as to empty its contents, a closed tank supported at an elevation higher than the bowl or basin and connected by a pipe with a source of water-supply, an air-valve in the top of the tank, a pipe leading downward from the bottom of the tank so as to discharge into the bowl or basin, a valve in the feed-pipe and a valve in the discharge-pipe, and means operated by the raising and lowering of the bowl or basin whereby said valves are opened and closed alternately so as to successively admit water into the tank and then discharge it into the bowl, substantially as described. (2.) In a watering-trough for animals, a bowl or basin provided with a discharge-spout on one side and supported on hinged bearings on each side of said spout, a latch adapted to engage with the opposite rim of said bowl or basin when it is elevated and closed, a waste-spout adapted to receive the contents of the bowl when it is tipped to a vertical position, and a rigid arm attached to said bowl and adapted to operate a spray within the bowl or basin as it is opened and closed, substantially as described. (3.) In a watering-trough for animals, a bowl or basin supported on hinged bearings and adapted to be raised to a vertical position, means for alternately filling and emptying said bowl or basin, and a spray-pipe connected with the water-supply and operated by the movements of the bowl or basin in opening and closing, whereby a spray of fresh water is ejected into and against the bottom of the bowl each time it is raised and lowered, substantially as described. (4.) In a watering-trough for animals, a bowl or basin adapted to be raised to a vertical position on hinged bearings, means for filling the bowl or basin when it is lowered to a horizontal position and for emptying its contents when it is raised to a vertical position, and a thin wall or screen extending on each side and above the trough or basin, substantially as described. (Specification, 6s.; drawings, 2s.)

No. 15099.—10th July, 1902.—INTERNATIONAL ORE-SEPARATING COMPANY, of 11, Pemberton Square, Boston, Massachusetts, United States of America (assignees of Henry French Campbell, of 2, Batavia Street, Boston aforesaid, Gentleman). Method and apparatus for separating ore-pulp.

Claims.—(1.) In an apparatus of the character specified, a tray, and means to feed the material upon said tray substantially its entire width in a predetermined film. (2.) In an apparatus of the character specified, a tray, means for feeding the material upon said tray, and a distributor arranged to cause the material to approach a given point in a predetermined film. (3.) In an apparatus of the character specified, a magnetic device, means arranged to carry material into the field of the said device, a distributor for feeding the material upon said means in a predetermined film, and means for vibrating said means in a direction at an angle to the feed of the material. (4.) In an apparatus of the character specified, two or more sets of magnetic separating-devices of progressive potentiality, means arranged to conduct the material to said devices in succession, whereby the work of magnetic separation is divided and one set of devices supplements the action of the other. (5.) In an apparatus of the character specified, a magnetic separating-device arranged to remove magnetic particles from a mass of ore-pulp, a tray arranged to conduct the pulp to the field of said device, an agitator arranged to shatter ore-pulp into particles and deliver the same upon said tray substantially its entire width in a predetermined amount. (6.) In an apparatus of the character specified, a magnetic separating-device arranged to remove magnetic particles from the mass of ore-pulp, a tray arranged to conduct the pulp to the field of said device, and means to vibrate the tray to shatter masses of the pulp and feed the pulp to the magnetic field in a predetermined film. (7.) In an apparatus of the character specified, a magnetic separating-device arranged to remove magnetic particles from a mass of ore-pulp, a tray arranged to conduct the pulp to the field of said device, said magnetic device being arranged to shake the particles or masses lifted by it to shatter from the magnetic particles non-magnetic particles, whereby the material removed by said device contains substantially no free non-magnetic particles. (8.) In an apparatus of the character specified, a tray, a stationary hopper, an agitator into which said hopper discharges, said agitator being arranged to automatically regulate the discharge of material from the hopper and to shatter and distribute said material upon the tray in a film of predetermined depth and width. (9.) In an apparatus of the character specified, an agitator, a tray on to which said agitator discharges the material, means for vibrating such agitator to shatter and feed the material therefrom, said agitator being constructed with an interrupted discharge-orifice to regulate and facilitate the discharge of the material from the agitator. (10.) In an apparatus of the character specified, a magnetic separating-device, a tray arranged to conduct the ore-pulp to the field of said device, an agitator arranged to receive the material from a source of supply and deliver the same upon said tray, and means for vibrating the tray and agitator at an angle to the line of feed of the material. (11.) In an apparatus of the character specified, a magnetic separating-device, a tray for conducting the material to the field of said device, an agitator formed with an apron arranged to distribute and discharge the material upon the tray in a predetermined film, a distributer upon said tray between the field of the separating-device and the point where the material discharges upon the tray, arranged to cause the material to enter the field of the device in a predetermined film, means for vibrating said tray, and means for preventing the material from being shaken from the tray. (12.) In an apparatus of the character specified, a magnetic separating-device, a tray arranged to conduct the material to the field of said device, an agitator to receive the material from the source of supply and discharge it upon the tray, means for vibrating the agitator to shatter and distribute the material upon the tray, means for vibrating the tray to shatter and feed the material to the field of said device, and means for shaking the material lifted by said device to shatter and separate therefrom non-magnetic particles whereby the resulting product is substantially free from magnetic particles. (13.) In an apparatus of the character specified, a magnetic separating-device arranged to remove magnetic particles from a mass of ore-pulp, means for conducting the ore-pulp to the field of said device, said device comprising a magnet and carrier, the carrier arranged to remove particles or masses when lifted by the magnet, and means for shaking said masses or particles while en route upon said carrier, to shatter apart a bunch or mass of particles to permit the non-magnetic particles to separate from the magnetic. (14.) In an apparatus of the character specified, a tray, means for feeding the material upon said tray, a distributer comprising independent shutters or members, and means for adjusting said shutters individually in order to control the amount of material passing the distributer at a given point. (15.) In an apparatus of the character specified, a tray having an ore-contact surface composed of aluminum. (16.) In an apparatus of the character specified, means arranged to conduct the material, and means for subjecting the said material at two or more successive points to magnetic action of different intensity. (17.) In an apparatus of the character specified, a magnet and carrier, a tray arranged to conduct material to the field of said magnet, and means whereby said magnet may be adjusted to or from the material. (18.) In an apparatus of the character specified, a horse-shoe magnet and carrier, a tray arranged to conduct material to said magnet, and provisions whereby either arm of said magnet may have its pole-piece independently adjusted to or from the material to increase or diminish the action of the magnet upon the material. (19.) In an apparatus of the character specified, a magnet and carrier, a tray arranged to conduct the material into the field of said magnet, said parts being so constructed and arranged that as the magnetic material is lifted and transported by the carrier it is subjected to a series of lateral movements independent of the movement of oscillation by the carrier, whereby the adhering zinc-particles are shaken back upon the tray, and the magnetic material delivered by the carrier is substantially free from zinc-particles. (20.) The method of ore-separation which consists in conducting ore-pulp upon a suitable support and subjecting said ore-pulp during its passage on said support to the action of a plurality of magnets of different potentiality, the first magnet serving to remove the material most susceptible to magnetic action, and the subsequent magnet or magnets in turn removing the atoms less susceptible to magnetic action, whereby the action of each magnet is unimpeded by reason of the presence of ultra-magnetic particles in the field of that magnet. (21.) The method of separating ore-pulp which consists in causing a stream of ore-pulp in the form of a thin, even film to be passed along a suitable support, subjecting said moving stream simultaneously to the successive action of two or more sets of magnets of different intensity, whereby the work of magnetic separation is distributed and the operation of one magnet supplements the work of the other. (22.) In an apparatus of the character specified, means for conducting ore-pulp in a predetermined film upon a suitable support, means for subjecting said ore during its passage on said support to the action of a plurality of magnets of different potentiality, the first magnet serving to remove the material most susceptible to magnetic action, and the subsequent magnet or magnets in turn removing the atoms less susceptible to magnetic action, whereby the action of each magnet is unimpeded by reason of the presence of ultra-magnetic particles in the field of that magnet. (23.) In an apparatus of the character specified, means for causing a