Mar. 21.] THE NEW ZEALAND GAZETTE. 743

movable relatively to the said framework or casing, whereby the bending or vibratory motions of the track are not communicated directly to the casing, substantially as set forth. (2.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; supporting the said endless track in or from a stationary casing or framework by an elastic medium in such a manner that the bending or vibratory motions of the track are insulated from the framework or casing, substantially as set forth. (3.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; supporting the said endless track in or from a stationary framework or casing by means of links, one end of each link being pivoted to the said casing and the other end to the track, whereby the bending or vibratory motions of the track are not communicated directly to the casing, substantially as described. (4.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; supporting the said endless track in or from a stationary framework or casing by fitting or forming the said track with radial tongues entering corresponding guides in or on the casing or framework, the tongues being capable of motion within the guides, whereby the bending or vibratory motions of the track are not communicated directly to the casing, substantially as described. (5.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; supporting the said endless track in or from a stationary framework or casing by means of springs interposed between the said track and the framework, or interposed between parts by which the track is carried and the said framework or casing, substantially as described. (6.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; supporting the said endless track in or from a stationary framework or casing, by means of elastic bars extending transversely of the track, whereby the bending or vibratory motions of the track are not communicated directly to the casing, substantially as described. (7.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; supporting the said endless track in or from a stationary framework or casing by adjustable tangentially directed pivoted links or bars in combination with or without springs, whereby the bending or vibratory motions of the track are not communicated directly to the casing, substantially as set forth. (8.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Figs. 1 and 2 of the drawings. (9.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Fig. 3 of the drawing. (10.) In balanced rotary steam-engines wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Fig. 4 of the drawings. (11.) In balanced rotary steam-engines,

wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Fig. 5 of the drawings. (12.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Fig. 6 of the drawings. (13.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Fig. 7 of the drawings. (14.) In balanced rotary steam-engines, wherein the cylinders are arranged radially and at right angles to an axis about which they revolve, the cylinder-pistons carrying rollers which act against the curved endless interior surface of a surrounding track, whereby revolution of the cylinders is produced; the construction of devices for supporting the said endless track in or from a stationary casing or framework, arranged and acting substantially as described with reference to Figs. 8 and 9 of the drawings.

(Specification, 12s.; drawings, 2s.)

No. 13459.—7th March, 1901.—JAMES GILBERT DAW, of 2, Goring Road, Llanelly, Carmarthen, Great Britain, Engineer. An improved form of stamping-heads, and dies or anvils on which the heads beat for the purpose of crushing metalliferous ores.

Claim.—In stamping-heads, and dies or anvils, employed for stamping and crushing metalliferous ores, making or forming a hole in each head and die, which shall extend for all the length or for a portion of the length, in the manner and for the purposes substantially as described, and illustrated in Figs. 3 and 4 of the sheet of drawings.

(Specification, 1s. 9d.; drawings, 1s.)

No. 13460.—7th March, 1901.—DARLING’S PATENT AUTOMATIC COUPLING, LIMITED, of 79, West Regent Street, Glasgow, Scotland (assignees of John Darling, of Gallowflat, Rutherglen, Lanark, Scotland, Engineer). Improvements in automatically coupling and uncoupling railway carriages, wagons, and similar vehicles.

Claims.—(1.) In apparatus for automatically coupling and uncoupling railway carriages, wagons, and other vehicles, the balanced lifter constructed and arranged that in its normal position it closes the openings in the side walls of the jaws, and that when a coupling has to be effected, and the shackle or front link strikes against the coupling-pin, the balanced lifter is freed from the openings in the jaws, thus enabling the coupling-pin to pass in between the jaws, substantially as and for the purposes described, and illustrated on the sheet of drawings. (2.) The construction of lever link, substantially as and for the purposes described, and illustrated on the sheet of drawings. (3.) The method of locking the coupling-pin to prevent coupling or uncoupling of two vehicles when not required, substantially as described, and illustrated on the sheet of drawings. (4.) The use of an indiarubber or other elastic pad to insure the links, after being released from coupling-pin, falling into the required position for coupling again, substantially as described, and illustrated on the sheet of drawings.

(Specification, 5s.; drawings, 1s.)

No. 13463.—7th March, 1901.—JAMES PALMER CAMPBELL, of Wellington, New Zealand, Registered Patent Agent (nominee of Benjamin Garver Lamme, of 230, Stratford Avenue, Pittsburg, Pennsylvania, United States of America, Electrical Engineer). Improvements in systems of electrical distribution.

Claims.—(1.) In a system of electrical distribution of the kind described, a protective device for each rotary converter which holds the direct-current circuit leading therefrom closed so long as the shunt-field current of such converter does not fall below a predetermined safety limit, but which opens such circuit when the shunt-field current is reduced