IX. Hornblower's Impts. in Rotary-Engines and Pumps; X. Baranowski's Calculating Machine; Babington and XI. Eaton's Roving Machinery; Sewell's Impts. in Preparing XII. Newton's Impts. in Preparing Pigments; Ablon's Draft Appts.; Foot's Impd. Loom; and Card's Impts. in Twisting Fibrous Materials. XIII. Wilkinson's Impts. in Looms; Irving's Carving Machinery; and Porter's Impts. in Girders and Fireproof Floors. XIV. Haigh's Appts. for Measuring Liquids; Normanville's Improved Axle-Boxes; Coode's Manure Distributor; Coates' Machinery for Cleaning Cloth for Printing; and Russell's Appts. for Making Bar-Iron. XV. Burleigh's Impts. in Lighting and Heating; Gilbert's Appts. for Extracting Teeth; and Hartes' Impd. SeedDepositors. XVI. Petrie's Impts. in Steam-Engines. XVII. Staite's Appts. for Producing Light by Electricity; Poole's Propelling; and Chamberlin's Appts. for Recording Votes. XVIII. Mac Lardy and Lewis' Impts. in Spinning; Dailey's Appts. for Propelling; Cooch's Impd. Sack-Holder; Hart's Impts. in Ventilating; and Humphrys' Impts. in Steam-Engines and Valves. TO JOHN BRITTEN, of Liverpool, in the county of Lancaster, chemist, for certain improvements in machinery or apparatus for printing, ruling, and damping paper for various purposes.—[Sealed 12th January, 1847.] THESE improvements in machinery or apparatus for printing, ruling, and damping paper for various purposes, consist, firstly, in improvements in machinery or apparatus used in letter-press printing; secondly, in machinery for printing paper-hangings; thirdly, in an apparatus for printing progressive numbers, in the process called "reading in patterns," used principally in the carpet manufacture; fourthly, in an improved method of fixing the pens used in machines for ruling parallel lines upon paper; fifthly, in an apparatus applicable to damping postage stamps, labels, and other similar purposes; and sixthly, in a modification of the above, for damping the leaves of copying books or other sheets of paper. In Plate I., fig. 1, represents a side elevation of the working parts of a printing-machine for printing one side of the sheet at a time. a, a, is part of the framing of the machine, and b, is the main driving-shaft, upon which is keyed a flywheel, of the requisite weight, provided with a winch-handle, for working the machine by manual labour; or steam or other power may be applied to work the said shaft. Upon VOL. XXXIII. A the driving-shaft b, is fixed the principal distributing roller c, and two levers or cranks d, d, (one at each side of the machine,) which impel the "frisket " and inking roller-carriage e, e, by means of the rods f, f. The type-table g, is stationary, and the platten h, slides up and down in the slot a*, a*, of the framing. The rise and fall of the platten is effected in the following manner :-Upon one end of the cross-shaft i, two cranks 1, and m, are fixed; and at the other, one crank corresponding to the crank m;—these cranks m, m, are connected to the platten h, by rods n, n. The crank 1, is connected to the lever d, on the main driving-shaft, by the link o, and rod p. The pin which connects the link o, and rod p, being guided along the curved dotted line by the radius rod q, it will be obvious that, if the connecting-rod p, and link o, were of one piece, the lever d, d, would scarcely move any further in the direction of the arrow than the position shewn in the drawing; but their being jointed, allows the lever d, d, to continue its revolution. The same effect may be obtained in various ways; for instance, by causing the connecting-rod p, to shorten like a telescope; or the pin which joins the connecting-rod p, and crank l, may be made to slide in a slot cut in the crank 7,-it being guided by a radius-rod, similar to the rod q. In fig. 2, the crank d, upon the drivingshaft is made to act upon a toothed segment r, gearing into a spur-pinion s, upon the end of the impression-shaft i. t, is the "bank" for holding blank sheets, and u, for printed sheets; v, is a claw for holding the blank sheet when placed ready; w, is a rod or shaft, extending across the frisket x, and having grippers attached to it in the usual manner. Besides the downward motion, which is common to all friskets that are separate from the type-table, the frisket in this machine is so arranged as to have a backward and forward motion on the carriage. The frisket is kept forward by a spring; but when the frisket a, comes under the platten, the end of the rod w, comes against a projecting picce y, fixed to the framing; by which means, the frisket is held stationary during the impression, without the necessity of bringing the carriage to a dead pause. The machine is worked as follows:A sheet is projected a proper distance underneath the claw v; and the attendant, having done this, is at liberty to leave it, and lay hold of the sheet last printed, which will be receding from under the platten. He retains the edge of this sheet in his hands until the finger y*, coming in contact with the pendant catch z, causes the grippers, which are attached to the frisket, to relax their hold of the sheet, which the attendant lays on the bank u;-the further passage of the carriage carries the finger beyond the influence of the catch ≈, and thereby releases the grippers on the frisket, which spring upon the edge of the sheet projected from under the claw v, and draw it under the press. The catch z, has free motion in the direction of the arrow, but cannot move any further the reverse way than the position it now occupies. Fig. 2, is a diagram, shewing another arrangement of single platten machine. a, is the frisket, and b,.the type-table, connected together by endless straps or chains c, c, passing over pulleys d, d. The object of this arrangement is, that as the frisket and type-table both slide in separate guides in different. directions, the platten need not be raised much higher than in the common hand-press. Fig. 3, is a side elevation of part of a machine for printing both sides of the sheet at one operation. a, a, is the framework, and b, b, are the two plattens, fixed to the frame-work. c, c, are the two type-tables, fixed together by the rods d, d, which slide through the lower platten b. The type-tables c, c, may be made to rise and fall in any convenient manner; and the method of laying on the sheets is as follows:-The blankets or tympans are to be attached to the plattens, and the friskets to be suspended about half an inch from the blankets, in such a manner as to admit of their being pressed into contact with the blankets. e, and ƒ, are two cylinders, having two chains (represented by the dotted line g,) passing over them,-one passing over each end and coupling the cylinders e, and f, together. Each of the chains g, should be, in length, exactly four times the circumference of one of the cylinders; and they are connected together by four light bars of steel or other metal h, h1, h2, h3, placed equidistant, extending across the machine in the direction of the cylinders. Enlarged views of one of these bars h, with grippers attached, are shewn at figs. 4, 5, and 6. Fig. 4, shews an end view, with the gripper i, in the position it would be in when at h3, with the gripper closed, and holding the edge of the sheet; fig. 5, shews the position at h, when just about to spring upon the fresh sheet; and fig. 6, is a plan view of one end of the bar h, with the gripper in the same position. The spur-wheel k, receives rotary motion by any convenient means: this wheel is one-fifth larger than the wheel 7, but has teeth upon four-fifths of its periphery only. When the cylinders e, and ƒ, have made one revolution and brought the blank sheets over the type-tables c, c, the stud m, is caught in the catch n, whereby the cylinders are held stationary. At the same time, the blank part of the wheel k, comes opposite the wheel, and the type-tables c, c, are caused to rise in any convenient manner and give the impressions. Three sheets are in the press at one time,—one receiving its first impression, one resting around the cylinder f, and one receiving its second impression. The sheet is laid on at h, where it is seized by the grippers, and carried, at three intervals, through the machine, in the direction of the arrows, and delivered, printed upon both sides, below the cylinder e. The grippers are caused to relax their hold of the sheet, by the part o, of the gripper-rod coming against the curved guide p, p1. Fig. 7, is a front view of the guide P, pl; by which it will be seen that, when the part o, of the gripper-rod has passed the part p1, of the curved guide, the crank q, will come into contact with the curved guide p, p1, which will have the effect of throwing the gripper into a more completely inverted position, as shewn at fig. 5. 1 Fig. 8, is a section of part of a machine for printing paperhangings. a, a, is the framing, to which the table b, b, is fixed; c, c, is the printing-block, which slides in slots in the framing, and is raised and lowered by the cam d, d*; and e, e, is the pad, upon which the color is distributed, and which slides in longitudinal slots in the framing. Manual or other power being applied to the shaft ƒ, it is to be communicated thence to the shaft g, by a strap or other convenient means. The rotation of the cam h, will, by means of the lever i, and link k, push the pad e, e, under the block c, c, as shewn in |