orifice of the bent tube; so that, upon still turning it in the same direction, it will turn the screw, move the piston forward, and bring down a fresh supply of ink.

The patentee claims the general construction and arrangement of the several parts, as above described and shewn in the figure; more especially the revolving screw, working through the tapped orifice in the centre of the piston, for regulating the supply of ink or other fluid.

To JULIANA MARTIN, of Soho-square, for an improved apparatus for artificial hatching.-[Sealed 22nd October, 1852.]

THIS invention consists of an improved apparatus for artificial hatching which is more portable, cleanly, and economical than most of those hitherto in use.

In Plate VIII., fig. 1, is an elevation of the apparatus, supported by an iron frame a, a; and b, b, are hollow partitions, dividing the central portion of the machine into compartments c, d, e. Semi-cylindrical vessels f,f, are placed in communication with the partitions b, b, for the purpose of supplying them with water. g, h, are trays, for holding the eggs to be hatched, one of which is shewn, in plan, at fig. 2. i, i, are taps, for allowing the vapour to escape from the top of the vessels f, f; and a tap may also be fitted to the lower part of the same, to draw off and change the water when necessary. The whole of the apparatus is made of zinc or galvanized iron; and to prevent as much as possible the radiation of heat, the sides of the vessel f, f, are covered with woollen cloth or other suitable non-conductor. Curtains are fitted to cover the compartments c, d, e, shewn at f*, and these are again covered by outer curtains, suspended from eyes k, k. The proper degree of heat is maintained by means of lamps 1, 1, which are supported beneath the vessels f,f, by lugs m, m, fitting into the hasps n,n. The outer casing of the lamp is made of perforated metal, and has a plate of talc o, fitted therein, to enable the person in charge to see whether the lamps are in proper order. To permit of the adjustment of the height of the lamps, screws p, p, are provided, which slide up and down in slots q, q, and carry with them the trays r, r, for holding the lamps.

The mode of working the apparatus is as follows:-One of the taps i, is to be unscrewed, and two vessels f, f, which communicate with the partitions b, b, are to be filled with

water, at a temperature of 120° Fahr., as shewn in section at s, for imparting heat to the trays in the compartments. The lamps are then to be lighted and adjusted in their places, the number of wicks being varied according to the state of the weather. When cold, six will be required; but in other cases, four, or even two, will be sufficient. A thermometer is to be affixed in the side of one of the vessels, in order to ascertain the temperature of the water. The bottom of the trays g, and h, are made of perforated metal, and to the upper part of each, is fastened a flannel bagj. (see fig. 2.) A quantity of hay being put into the trays, the eggs are then to be laid therein; and the trays are placed in the compartments c, d, e, and kept in contact with the partitions above, by means of slips of wood t, as shewn in the lower compartment e, fig. 1. The trays are to be removed every six hours, for five or ten minutes, for the purpose of airing the eggs; they should then be gently turned with the hand. It is important that the temperature of the water should always be maintained at 110° to 115° Fahr. A plate of perforated metal is sometimes placed on the eggs, in order to steady them when the chickens are chipping their way out. When the chickens are hatched, they are removed to a wire cage u, which is fitted with a sliding door and suspended below the machine. This cage is lined with fur, and heated by the partition b, above, so as to imitate as closely as possible the natural warmth imparted by the hen. x, x, are metal guards, to shield the cage u, from any excess of heat which may be imparted from the lamps 1, l.

The upper part of the machine w, is intended for finishing the hatching of the eggs, and it is also useful for restoring chickens when numbed with cold, as is frequently the case: it is lined with flannel, and furnished with an air tube for carrying off the warm air.

Fig. 3, is an apparatus for sheltering and imparting warmth to a number of chickens, and is shewn partly in section. The vessel A, contains water, which circulates round the chamber B, by means of a pipe connecting the two together: beneath this chamber-the under surfaces of which are lined with fur c, in a manner similar to the cage u, fig.1,-the chickens take shelter. D, D, are ventilating tubes, communicating with the upper part of the space E, to carry off any impure air. The chamber B, beyond the vessel A, is intended to be enclosed within a coop, so that the chickens cannot be injured by the heat of the lamp F, which heats the vessel A, and is similar to those shewn in fig. 1. This coop may be either portable or not,

and may vary in size, according to the number of chickens required to be hatched.

The patentee claims the apparatus for artificial hatching, herein shewn and described.

.

TO WILLIAM WHITE, of Cheapside, hat manufacturer, for an improved fabric suitable for ventilating hat bodies.[Sealed 23rd October, 1852.]

THIS invention relates to the production of a fabric, suitable for ventilating hat bodies, composed entirely of Manilla grass, the interstices of which will not become choked or filled up when stiffening such hat bodies. This fabric is produced by weaving the Manilla grass in an ordinary loom,-both warp and weft being composed of such grass. Care should be taken to weave the fabric so open as to leave large interstices between the threads. When the bodies of hats are thus formed of this material, the workman should be careful, in stiffening the same, not to fill up the interstices or spaces between the threads; and thus a flexible and ventilating hat body will be produced.

The patentee claims the improved fabric for hat bodies, as herein before described.

To ALFRED AUGUSTE DE REGINALD HELY, of Cannon-row, Westminster, civil engineer, for an improved shade or chimney for lamps, chandeliers, gas, and other burners.[Sealed 3rd November, 1852.]

THIS invention consists in producing upon the inner or outer surface of a transparent or translucent glass shade or chimney for lamps, chandeliers, gas and other burners, one or more patches, or bands and patches, of colors; which patches or bands may be etched, cut, embossed, engraved, or prepared, so as to exhibit any desired lettering, figures or devices, in a permanent manner. The patentee remarks that, to avoid confusion, by the term "glass" he means glass usually so called, and all other vitreous compounds transparent or translucent: by the term "shade or chimney," he means globes, moons, lotuses, bells, domes, vases, dishes, consumers, chimnies, and all other varieties of the article that are used for the purposes aforesaid. By the term "patches," he means all figures, large or small, bounded by straight or

curved lines. By "bands," he means stripes, garters, fillets, and all similar straight or curved lines. The patches or bands depicted upon any shade or chimney, taken wholly, partially, or mingled, as depicted upon any other patches or bands of colors, may be produced by the following processes, which are considered to be the most economical, permanent, and effective, namely, casing and staining. By the former-if the shade be blown open on the surface of the clear glass whilst in a heated state-a sufficient layer of hot colored glass is deposited: it is blown, spread, pressed, or fused, until the two glasses have amalgamated or become fixed one to the other: but if the shade be moulded, a sufficient layer of colored glass is first inserted, and then the clear glass is blown out to it, so as to form the shade with the layer firmly united thereto. By the second process a sufficient mineral or metallic coloring matter, prepared according to the usual recipes for glass staining or enamelling, is deposited in the ordinary way upon the inner or outer surface of the shade, after it is blown or moulded; and it is then submitted to the action of heat, in the usual way of "burning in" or fixing the coloring matter deposited. After the colors, cased or stained on, have been produced (should they not possess the requisite forms and sizes), all superfluous color is "cut out" with the usual tools, or "cut away" with the usual acids; and the requisite letters, figures, or devices, are cut out or cut away, in like manner, from the colored stratum or strata, so as to ensure either a colored effect upon a clear ground or a clear effect upon a colored ground.

The patentee claims the production of a glass shade or chimney for lamps, chandeliers, gas, and other burners, such as herein before set forth and described, whether by the processes herein before directed, or by any mere equivalent for the

same.

TO ROBERT WILLIAM MITCHESON, of Garford-street, anchorsmith, for improvements in anchors.-[Sealed 25th October, 1852.]

THIS invention consists in so forming the palms of anchors that they shall not become liable to be clogged or choked; also that the extremity of the palms shall be constructed so as more readily to take the ground.

In Plate VIII., fig. 1, is a front elevation of the improved anchor; fig. 2, is a side view; fig. 3, is a plan view of the palm; and figs. 4, 5, and 6, are sections of different parts of

the anchor. In order to prevent the palms a, a, from clogging or being filled with mud, &c., their faces are made convex, as shewn, in plan view, at fig. 3; and, in section, at fig. 4. And to the extremity of the palms of the anchor, an inclination is made in the reverse direction to the curve of the arms, as shewn at b, b, figs. 2, and 3, to enable the anchor more readily to lay hold of the ground.

The patentee claims, First, the making of the palms of anchors convex; and, Secondly, the inclining of the extremity of the palms of anchors in a reverse direction to the curve of the arms, as hereinbefore described.

To CHARLES GRIFFIN, of Leamington Spa, Gent., for improvements in apparatus for fixing type or printing surfaces in a chase.-[Sealed 9th November, 1852.]

THIS invention relates to fixing type in a chase, and consists of an apparatus which has corresponding inclined surfaces,— parts of such inclines being moveable by means of screws; so that the apparatus will be wider or narrower according as the screws are moved in one or other direction.

In Plate IX. is a plan of an apparatus, constructed according to this invention; in which a, a, is a double incline, and b, b, are two inclines, which are capable of being moved either towards or away from each other, as desired, by means of screws c, which screw into the two moveable inclines b, b; such screws being moved by a spanner c*. The moveable inclines b, b, are made with slots, and are connected to the inclines a, by screws d, d; hence, although the parts b, b, are capable of moving along the inclines a, a, they are prevented from separating therefrom. The parts a, and b, are shewn in their most contracted or their narrowest position; and the width occupied by the parts a, and b, will be greater and greater according as the inclines b, b, are moved towards each other by the screws c; and, by being so expanded, they will tighten up the type in the chase.

The patentee remarks that, although he believes the arrangement shewn to be the most convenient and best for carrying out this invention, he does not confine himself thereto, as variations may be made therein, so long as inclines are arranged in combination with screws, and capable of being moved thereby, in place of being set up by driving, as heretofore. He claims combining inclines with screws for fixing type or printing surfaces in a chase.