Mar. 5.] THE NEW ZEALAND GAZETTE. 711

No. 16006.—20th February, 1903.—JAMES DICK, of “The Grange,” Ngaturi, Pahiatua, Wellington, New Zealand, Farmer. Improved apparatus for use in drafting sheep.

Claims.—(1.) In apparatus for the purpose described, operating the gates or gate at the end of the race by means of a system of levers and connecting wires or rods so that the operator is at the rear of the sheep passing through the race, substantially as and for the purposes set forth. (2.) In apparatus for the purpose described, in combination, vertical levers at the rear of the race, horizontal levers near the race-gates, wires or rods connecting the vertical and horizontal levers, and rods connecting the horizontal levers and the gates, substantially as and for the purposes set forth. (3.) In apparatus for the purpose described, in combination, vertical arms at the rear of the race fixed to horizontal rods parallel with the race, bearings in which the horizontal rod is mounted, vertical arms at the other end of the horizontal rods, rods connecting the latter vertical arms to the gates of the race, substantially as and for the purposes set forth. (4.) The combination and arrangement of parts comprising the improved apparatus for use in drafting sheep, substantially as and for the purposes set forth, and illustrated in the drawing.
(Specification, 2s. 6d.; drawings, 1s.)

No. 16010.—21st February, 1903.—FELIX JEROME McSHANE and JAMES HENRY McSHANE, both of 303, South Thirteenth Street, Omaha, Douglas, Nebraska, United States of America, Railroad Contractors (assignees of Robert Ely Waugh, of 3438, Marion Street, and Eugene Waugh, of 3339, Curtis Street, both of Denver, Colorado, United States of America aforesaid). Improvements in dry-ore concentrators.

Claims.—(1.) In a dry-ore concentrator, the combination with a suitable frame of a vibratory apron-frame constructed to form an air-chamber, an endless travelling apron through which the air from the chamber passes, the apron closing said chamber at the top, an auxiliary air-chamber arranged in suitable proximity to the main air-chamber, means for introducing air under pressure to the auxiliary chamber, and means for vibrating the apron-frame. (2.) In a dry-ore concentrator, the combination with a stationary frame of an apron-frame mounted to vibrate thereon, means for vibrating the apron-frame, an endless travelling apron mounted on the frame which is constructed to form an air-chamber beneath the apron which closes the said chamber at the top, an auxiliary air-chamber mounted on the apron-frame in proximity to the main air-chamber, delivery-pipes communicating with the auxiliary chamber and projecting into the main chamber below the apron, the said pipes having openings for the escape of air to the main chamber, and means for introducing air under pressure to the auxiliary air-chamber. (3.) The combination of an endless travelling apron constructed to allow an air-blast to pass therethrough, a vibratory apron-frame having an air-chamber closed at the top by the apron, means for vibrating the apron-frame, an auxiliary air-chamber mounted on the vibratory frame, means for delivering air from the auxiliary chamber to the main chamber below the apron, and means for introducing air under pressure to the auxiliary air-chamber. (4.) The combination of an apron-frame mounted to vibrate and provided with an air-chamber, means for vibrating the apron-frame, an endless travelling apron mounted on the frame and closing the air-chamber at the top, the apron being composed of suitable material to allow the air to pass there-through, an auxiliary air-chamber, means for introducing air under pressure to said auxiliary chamber, and pipes leading from the auxiliary chamber and provided with openings for the escape of air below the apron, the said pipes being rotatable whereby the angle of the delivered air-jets may be varied at will. (5.) The combination with a stationary frame of a vibratory apron-frame mounted thereon and provided with an air-chamber, means for vibrating the apron-frame, an endless travelling apron mounted on said frame and closing the air-chamber at the top, an auxiliary air-chamber mounted on the apron-frame, means for introducing air under pressure to said auxiliary chamber, outlets from the auxiliary chamber to the main chamber, and means for controlling and regulating the exit of the air from the auxiliary chamber to the main chamber. (6.) The combination with a stationary frame of an apron-frame mounted to vibrate thereon and provided with an air-chamber, means for vibrating the apron-frame, an endless travelling apron mounted on the vibratory frame, the apron being arranged to close the air-chamber at the top and constructed to allow air to pass therethrough, an auxiliary air-chamber provided with outlets to the main chamber, and slides located in the auxiliary chamber and adapted to be actuated from the outside of the chamber for regulating the escape of air from the auxiliary to the main chamber. (7.) The combination with a suitable stationary frame of a vibratory frame, means for vibrating the last-named frame, longitudinal bars, means located at the extremities of the bars for adjusting the latter vertically, shoes attached to the vibratory frame in sliding engagement with the bars, and buffer springs mounted on the bars and engaging one pair of shoes. (8.) The combination with a suitable stationary frame, having slotted standards mounted thereon, of longitudinal bars, cross bars to which the longitudinal bars are secured, vertically movable boxes in which the cross bars are mounted, the extremities of the cross bars protruding into the slots of the standards, screws connected with the boxes of the cross bars, nuts applied to the screws and engaging the top of the standards, a vibratory frame slidably mounted on the longitudinal bars, and means for vibrating said last-named frame. (9.) In a dry-ore concentrator, the combination with a stationary frame of an apron-frame mounted to vibrate thereon, means for vibrating the apron-frame, and composed of two side pieces, cross pieces connecting the side pieces, a plate attached to the cross pieces and forming a bottom for an air-chamber, tracks attached to the side pieces above the bottom and forming a support for the apron, end drums journaled in the side pieces beyond the air-chamber, yielding flaps attached to the bottom plate and overlapping the drums for closing the air-chamber at the ends, and an endless concentrating-apron passing around the end drums and closing the air-chamber at the top. (10.) The combination with a suitable stationary frame of an apron-frame mounted to vibrate thereon, means for vibrating the last-named frame, a shaft journaled in the stationary frame, pitmen operated from the shaft and connected with the apron-frame, drums journaled in the apron-frame at the extremities of the air-chamber and around which the apron passes, a blower connected with the air-chamber to deliver air thereto, an operating-shaft, a connection between said shaft and the blower for operating the latter at a high rate of speed, and a speed-reducing connection between the operating-shaft and one of the end drums for operating the apron at a comparatively lower rate of speed. (11.) The combination with a stationary frame, an apron-frame mounted thereon, means for vibrating the last-named frame, end drums for operating the apron, an endless travelling apron passing around the drums, an operating-shaft and speed-regulating means interposed between the shaft and one of the end drums, said means including two conical pulleys oppositely arranged, a belt connecting said pulleys, and a belt-shifting device comprising a screw shaft journaled in the stationary frame, and a travelling nut mounted thereon and provided with a fork straddling the belt. (12.) The combination of a stationary frame, an apron-frame mounted to vibrate thereon and provided with an air-chamber, means for vibrating the apron-frame, end drums journaled in the frame, yielding flaps attached to the extremities of the air-chamber bottom and engaging the drums to close the air-chamber at the ends, and an endless travelling belt or apron engaging the drums and closing the air-chamber at the top, said apron being composed of material adapted to allow air under pressure to pass therethrough from the air-chamber below. (13.) In a dry-ore concentrator, the combination with an air-chamber of an endless apron arranged to close said chamber at the top, said apron comprising a body part of fibrous or other material adapted to allow air to pass therethrough under pressure, rubber strips attached to the edges of the apron, each of said strips having two flanges extending approximately at right angles to each other, one of which flanges projects above the concentrating-surface of the apron and maintains the ore thereon, the other flange being secured to the edge of the apron, rods or reinforcing pieces extending transversely across the apron on its inner surface, their extremities being attached to the outer edges of the apron, and straps composed of leather or other suitable material attached to the edges of the apron on its inner surface. (14.) In a dry-ore concentrator, the combination with a stationary frame, an apron-frame mounted to vibrate thereon, means for vibrating the apron-frame, an endless travelling apron mounted on the last-named frame, and an oscillatory beater-device engaging the concentrating-surface of the apron during its rearward travel to remove the concentrates, said device being mounted on the vibratory frame and a stationary part with which a part of the said device is connected for operating purposes. (15.) In a dry-ore concentrator, the combination with a stationary frame of an apron-frame mounted to vibrate thereon, means for vibrating the apron-frame, an endless travelling apron mounted on said last-named frame, a beater arranged to engage the concentrating-surface of the apron during its rearward travel for the purpose of removing its concentrates, said device including a transverse bar pivotally connected with the vibratory frame, a crank-arm attached to said bar, and a link attached to the stationary frame and connected with the arm of the beater-bar for operating purposes.