Streets &Whiteley's, for Impts. in Warp Machinery. 335

cause the threads (which would otherwise produce knitting or stocking fabric), by lateral movements, to form the holes r open meshes of lace fabric. They have also set out the manner in which, by omitting certain needles in the range, the fabric is made into several narrow strips of lace called tattings, the strips being connected together in one broad sheet by single lacing threads, instead of one uniform sheet of net being produced of the whole width of the machine. Likewise the manner of communicating thick threads, called gimp threads, is described, and of working them into the fabric by means of additional thread guides for embroidering the lace. And lastly, the manner of producing eyelet holes in different parts of the net is explained, viz. by the employment of several extra guide bars, each of which are distinctly operated upon by the cams or shogging wheels, for the purpose of withholding certain of the threads, and thereby producing the open spaces called eyelet holes in the fabric.

All these matters being common and well understood parts of, or appendages to, the warp frame, it appears to be rather a gratuitous surplusage in the Patentee to have indulged us with one of those elaborate essays, accompanied by a long series of sheets of drawings, which have so often of late been brought forth upon the rolls of patent for the enlightenment of the lace trade. We, however, confined within the narrow bounds of a monthly publication (at present oppressed by the extensive demands of other subjects), are constrained to limit our report to the real matters of the invention, consisting simply in three particulars, and which are almost as fully explained by the concluding clause of the specification, as by the details in the body of that deed.

First, the Patentees claim the adaptation to a warp ma

chine for making lace, of a row of parts called thread conductors, formed as the teeth of a comb, which are interposed between the ends of the needles and the ends of the guides, in order to act as a slea for conducting the warp threads into the proper places between the needles, instead of requiring the guides to pass between the needles. Second, these thread conductors are made with some long and some short stems, for the purpose of gathering certain of the warp threads, and confining them between the stems, so as occasionally to withdraw threads from particular needles, in order to leave open spaces as eyelet holes in the fabric. Third, in a row of parts called pressers, formed by stems with bent prongs at their ends, which are occasionally to act as substitutes for the ordinary presser bar, for the purpose of landing the loops and stitches over the beards of the needles when the newly-formed lops of thread are beneath the beards.

The object of the improvements, as adapted to warp machinery, being thus stated, it is only necessary for us to add, that these thread conductors and pressing prongs are fixed in leads in the same way as the needles and guides, that they are mounted on bars extending across the machine, and that they are at stated periods made to operate by means of levers and cams acting upon them; the whole of the machinery being put in operation by a rotary shaft, driven either by manual labour or by mechanical power.-[Inrolled in the Rolls Chapel Office, July, 1835.]

TO HENRY DUNINGTON, of Nottingham, and WILLIAM COPESTAKE, of Stapleford, both in the county of Notts, lace manufacturers, for their invention of certain improvements in making or manufacturing lace.-[Sealed 13th May, 1835.]

THIS invention, stated to be improvements in making lace, is, in fact, only some mechanical agents to be applied to that description of machine called the warp frame for making lace. The machine is to be driven by rotary power, instead of being actuated by hand, as is usually the case; and as the fabric to be produced is delicate, and apt to rend if any extraordinary or unequal force should by accident be exerted upon it, the Patentees propose to drive it by the contact of friction surfaces instead of toothed gear, in order that the coupling or connecting parts may give way whenever an unusual strain happens, from any slight derangement of the machine, or from other causes.

The driving power is applied to a horizontal shaft in the back part of the machine, carrying cams, as in Herbert's rotary warp machine. Vol. iii. of our present Series, page 213, and Plate XI., which plate will suffi ciently apply to the present invention, so far as to exhibit the warp machine driven by rotary power.

The coupling clutch for driving is formed by two wooden cones, one within the other, which adhere by the friction of their surfaces; the one cone being connected to the driving rigger or strap pulley, the other to the driving shaft of the machine; and hence if any unusual resistance occurs in the movements of the machinery, the inner cone will slip within the outer one.

The second improvement is the employment of a worm or endless screw, in connexion with the back shaft, which 2 x

VOL. IX.

worm is acted upon by a spur wheel, and is designed for driving the machinery slowly, instead of working the shaft rapidly by an ordinary wheel and pinion.

The third improvement is the adaptation of such a cam wheel in connexion with the back shaft of the warp frame, as shall cause three evolutions of the machinery to be performed for every rotation of the back shaft.

The claims of novelty are, first, the peculiar construction of a conical friction clutch to a warp machine for making lace; second, the mode of actuating the machinery through the agency of an endless screw; and, third, the three-step cam wheel for giving three distinct series of evolutions by one rotation.[Inrolled in the Inrolment Office, November, 1835.]

TO HENRY DUNINGTON, of Nollingham, lace manufacturer, for his invention of certain improvements in making or manufacturing lace.-[Sealed 22nd June, 1836.]

THIS invention is an improvement upon the third feature of the foregoing patent. In the former instance, three series of evolution of the machinery were to be made by every rotation of the back shaft; it is now proposed to produce four series of evolutions by every rotation of the back shaft, which, it is said, will cause the machinery to move with greater steadiness.

The construction of the machine called the warp frame being well understood, the Patentee has only thought it necessary to represent in a sheet of drawings diagrams of the external forms of the several cams he employs, technically called the cut of wheels; these are to be affixed to

the back shaft of the machine, for the purpose of working the several levers and bars. No further description of the machine is given.—[Inrolled in the Inrolment Office, December, 1836.]

To CLAUDE GUILOTTE, of Crispin-street, Spitalfields, in the county of Middlesex, machine-maker, in consequence of a communication made to him by a foreigner residing abroad, for an improvement in the rack applicable to the ballens of looms, or machinery for weaving plain or figured ribbons.-[Sealed 11th February, 1831.]

THIS improvement applies solely to that construction of loom called the French ribbon loom, in which a series of small shuttles are driven to and fro through the narrow warps of the ribbons, by means of a sliding rack.

The Patentee says, these French ribbon looms are very well known in England, but in order to render the improvement evident, he has thought it necessary to describe their construction.

The narrow warps of the several ribbons intended to be woven are extended horizontally from the warp beam through corresponding narrow portions of reed to the work beam, and a distinct shuttle is employed to weave each ribbon, which severally move to and fro through their respective warps by sliding in grooves in the front of the batten.

The shuttles have each a small rack on their under side, which being acted upon by small pinions mounted in the batten, are, by the reciprocating rotary motion of these pinions, made to move to and fro in their respective races in the batten through the warps, for the purpose of effecting the intervention of the threads or weaving;