AURORA BOREALIS.-The Aurora on the evening of the 12th, from 5 till after 10 o'clock, was remarkably brilliant; the coruscations, thoughfew, were vivid, and of a deeply red colour. Again, on the evening of the 15th, about 7, when it was even more splendid, the coruscations which were white, and also more numerous, vivid, and extensive, and apparently based upon a deep crimson ground. About 8 on the evening of the 12th a brilliant meteor passed through Ursa Major. THE London JOURNAL AND REPERTORY OF Arts, Sciences, and Manufactures. CONJOINED SERIES. No. LXX. Recent Patents. To THOMAS GAUNTLEY, of the town and county of Nottingham, mechanic, for his invention of certain improvements in machinery for making lace and other fabrics, commonly called warp machinery. - [Sealed 15th August, 1836.] THESE improvements in warp machinery employed for making lace and other fabrics, consist in the adaptation to that kind of machinery of a series of thin blades, which are denominated thread-carriers, being for the purpose of lapping the threads upon the bearded needles, and thereby superseding the necessity of the guides passing between and over the needles, as in the ordinary modes of working that sort of machinery. In the accompanying drawings, see Plate IX., figs. 1, and 2, represent, in two positions, a scries of these VOL. XI. 2 c thin blades set in a lead in the way, in which they would be prepared to be mounted in the machine. Fig. 3, is a section taken transversely through a complete machine, in which these thread-carriers are seen at A, mounted upon a longitudinal bar B; and fig. 4, is an elevation of the back part of the same machine. In this, and the preceding figure, the thread-carriers, and the new parts by which they are worked, are marked with capital letters; the other, or old parts of the machinery, are shown in outlines only, and are marked by small letters; the several letters of reference indicating the same parts throughout all the figures. The bearded needles are shown at a, set in leads, and mounted in a horizontal series upon the needle bar b, as usual; c, c, c, are three series of guides fixed upon their several bars, which carry and conduct the threads from the warp beams d, d, d. The sinkers e, mounted in leads, in the ordinary way, are affixed to the sinker bar f, the centres of which I prefer to place below the needle bar. The presser bar g, is, as usual, above the needles. All these parts are constructed nearly in the same way, and operate in a similar manner to the mechanism of an ordinary warp frame when driven by rotary power, excepting the parts supporting the guides (technically called the machine); which parts are, by me, merely slidden in and out by a cam i, acting against a rocking lever j, j, affixed to a shaft k; to this the bent levers 1, 1, are attached, which work the guide frame; the up and down vibratory movements of the guides being, by the adaptation of my improvements, dispensed with. The thread-carriers A, are made to rise and fall, through the agency of arms or levers c, extending forward from a longitudinal bar, called the central rocking bar D. These arms c, are connected in front of the warp frame, by axle joints E, to the bar B, of the threadcarriers, and turn on stationary fulcrum pivots fixed in the framework, which are inserted into the ends of the central rocking bar D. From the back of this rocking bar, an arm or tail lever F, extends, carrying a truck roller G, which truck roller is acted upon by the periphery of a revolving cam H, H, fixed on the main or back shaft h; and hence, by the rotation of this cam H, the levers F, and c, are made to vibrate upon their fulcrum pivots at D, and to raise the thread-carriers a, at the required periods for taking hold of the threads extending from the guides to the needles, and lifting them on to the ends of the needles. The thread-carriers A, have also a slight vibratory movement in the direction from the ends of the guides c, c, toward the needle bar b, for the purpose of forcing the threads back over the beards of the needles, which operation used to be performed by the movements of the guides in ordinary warp frames. This vibratory movement of the thread-conductors is effected by the following arrangement of compound levers. The arms I, extending downward from each end of the bar B, are connected by axle joints to levers K. These levers are in like manner connected to arms L, extending from a longitudinal rocking shaft M, at the back of the frame, the pivots of which shaft move in bearings in the end standards. From this rocking shaft м, near its middle, an arm N, extends upward, which is connected by an axle joint to a lever o, and the reverse end of this lever o, is, in a similar way, connected to a rocking standard P, mounted on a bracket Q, Q, fixed to the framework. In the lever o, a truck roller R, is mounted upon a fixed stud or axle, which roller is acted upon by |