dle, as is also a small fly pulley T, which carries a catgut band to v, which is a similar pulley upon the spindle of R, and thus the motion of the fly pulley R, becomes reversed, which returns the standards F, F, and the teering brushes, back to their situation over the colour roller. The pad L, is also drawn back by the standards E, E, by means of the spring catches or hooks a, which move upon pins p, fixed to the standards; and they act upon the small projecting studs b, b, at the ends of the pad, and thus hold it during the return motion until the pad is stopped by the stop pins c, c, fixed to the frame, when the spring catches rise up the bevil edge of the stud b, and leave the pad in its first situation, as shown in fig. 12.

In order that the spring catches may not, during the advance, strike the pad studs b, and push the pad before it, the catgut bands which draw the standards are attached to eyes fixed in the catches, which raise their ends over the studs b, b, so that the pad is only acted upon by the spring catches during the return. The spring catch is shown by the side of fig. 12, on an enlarged scale: w, is also a clothed roller, having upon its spindle a fly pulley, which carries a crossed band to a similar fly pulley upon the spindle of x, which draws the contact rubber м, backward and forward in the same manner as the standards just described; the rubber having less distance to travel than the brushes, its fly pulleys x, x, may be proportionably smaller.

In connecting this colouring machine with the driving power, it would be convenient so to arrange it, that the printer may stop and start it as he requires, by placing his foot upon a treadle or treadles connected with the clutch or driving pulleys.

Fig. 15, shows an arrangement of the sieves in which

they enter sideways under the blocks: B, is the moveable head; c, c, are the block tables; D, D, are the blocks, as before described; i, i, the sieve frames, which move towards each other until they meet in the centre between the blocks, when the colour is applied to the block in the manner before described, and the backward and forward motion of the sieve frame may also be produced by segments and band pulleys. The feeding in of the cloth, and the mode of giving the impression, is likewise made in the same manner as hereinbefore explained. In this form of machine, and in that described in figs. 1, and 2, the material to be printed is supplied to the feeding drum from a roller having a quantity of material around it, in the ordinary manner of copper plate presses and cylinder machines; and after the material has left the machine printed, it is carried away by the common methods, over and under guide rollers, the position of which, as well as of the course of the material, must depend upon the situation where the machine is worked or placed. The course of the printing cloth or impression blanket is shown in figs. 1, and 2, by a red line; and it is to be observed, that when an endless oil silk is used to print upon, the superfluous colour which has passed through the material in printing it must be wiped off, and the oil silk dried by rubbing it with a dry cloth, before it returns to the machine.

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It is to be observed, that I do not hereby claim any of the separate parts of the said described improvements or machines which have been made, or which have been in use before; but that I claim their combinations for the uses here shown, not limiting myself to the precise form of carrying the said uses or improvements into effect, but claiming the right to employ any suitable material or form for that purpose; and, especially, I

claim that improvement which relates to applying the colour to the blocks, in any and every combination to which it may be applied.[Inrolled in the Inrolment Office, May, 1837.].

Specification drawn by the Patentee.

To HENRY HUNTLEY MOHUN, of Walworth, in the county of Surrey, doctor in medicine, for his invention of improvements in the manufacture of fuel.-[Sealed 4th October, 1836.]

THIS invention consists in combining certain materials whereby the Patentee is enabled to produce a cheap and highly useful fuel. The materials employed are—first, peat-earth, peat-moss, peat-turf, slimy or other mud or marl, or any other earth which is composed largely of vegetable matter; secondly, nitre; thirdly, alum; fourthly, linseed or other seeds, or shelled fruit; fifthly, rosin; sixthly, coke; seventhly, any green vegetable matter; and, eighthly, animal excrement or other animal matter.

The following is the process of combining and pressing the materials into lumps, for fuel:-Take one ton of peat in its raw or charred state, thirty pounds of nitre (the crude nitre does best), fourteen pounds of alum, which has the effect, when properly dissolved and thoroughly amalgamated with the rest, to prevent smoke; fourteen pounds of linseed, fourteen pounds of rosin, or asphaltum, or naptha; one hundred and fifty pounds of coke; one hundred and sixty-eight pounds of green vegetable matter; one hundred and fifty-six pounds of animal excrements or other animal matter. The quantity of the

various materials will depend on the quality of the peatearth, peat-turf, peat-moss, slimy or other mud, marl, or any other earth which is composed largely of vegetable matter, the above quantities being given for peat of the best quality; and in order to determine the relative qualities for any particular earth, it will be necessary to weigh out varying quantities, and having mixed, pressed, and dried them, to burn the same, in order to ascertain which mixture produces the description of fire desired.

The process of mixing may be thus proceeded with for large quantities:-The peat is first to be passed through the mixing mill in a dry state; and the mill employed is an ordinary pug mill, such as is used in brickmaking. About one-third or half of the linseed is to be boiled in water, in order to produce a liquid about the consistency of thin glue; in this the alum is to be dissolved the remainder of the linseed, with the rosin and nitre, are to be crushed very fine by edge stones or other means; and the green vegetable matter is also to be ground or crushed in like manner, and thus produce a pulp, taking care to keep the vegetable juices from running away.

The whole of the materials are then to be mixed with spades, or otherwise, and well ground in the pug mill; the object being to obtain an intimate blending of the various materials in order to the same burning equally.

The combined mass so produced is then to be pressed into moulds by a strong screw or other press, the shape and dimensions of the lumps not being material; but it is desirable the materials should be well pressed in order to prevent the lumps readily coming to pieces; if not pressed, the fuel will be apt to crumble and burn too fast if exposed to a strong draft.

The Patentee says, "I claim the combination whether the same be submitted to pressure or not, the advantage of pressing being to increase the time it takes consuming."

The lumps thus produced are to be piled one on the other, leaving spaces between for the circulation of the atmosphere; and it will facilitate the preparation to have such piles in a closed shed or room, the atmosphere of which can be heated; though in summer time, and warm dry weather, this will not be necessary, unless great expedition is required. Care must be taken not to expose it to a great artificial heat when just formed or pressed. It must be dried by the atmosphere only, for the first two or three days.

The peat, it should be observed, may be first used for the purposes of distilling gas therefrom, as has been be fore practised, and the charred peat in the retorts subsequently used for the making of the fuel, in place of the raw peat, as above described.

In order to make the new fuel for the purpose of obtaining gas therefrom for illuminating purposes, take in the proportions of ten pounds of nitre, forty pounds of rosin, twenty-four pounds of linseed, one hundred weight of green vegetable matter, and one ton of peat, which being combined and treated according to the directions above given, and the lumps put into ordinary gas retorts and distilled similarly to ordinary coal.

Having thus described the nature of the invention, and the manner of combining the same, the Patentee says, "I would remark, that I do not confine myself to the precise three processes here described, for it will be evident that the object to be obtained is a careful combining or mixing of the materials herein mentioned, and the subsequent pressing the same into hard lumps