upon the felt, its own weight will continue to draw it from the web whilst the felting is in motion.

Having thus more particularly described the conformation of the principal parts of our machine, we do further describe the manner in which we give motion to the same, and the connection between them and the first mover: That is to say, we do employ water or more immediately a water wheel, as a first mover, which we prefer to any other power, as by it is obtained the most regular and uniform motion, and such as is best adapted for this purpose, though other first movers might be used.

Cd is the axis of the water wheel (the wheel itself, being of the common construction, is supposed, and not represented in the drawing), upon which is fixed or hung the wheel Ce, the teeth of which take into those of C another wheel hung upon the spindle C g lying opposite to or in a line with the shaft or spindle of the under cylinder Bo. Ch is a coupling or clutch box, for the purpose of giving motion to or stopping the cylinder as may be required, by any of the well-known methods in common use for such purposes.

Ci is a wheel likewise working into or taking its motion from Ce, having upon its axis the rigger or band wheed Cj, which by means of a strap or band communicates motion to another band wheel Ck hung upon the spindle Cl, lying opposite to or in a line with the spindle ar under wet press cylinder X. A coupling or clutch box is placed upon its end at Cm, for the same purpose as the one upon the spindle Cg above described. And we do cause the rigger or band wheel Cj to be made upon an adjustable principle, or capable of having its diameter increased or diminished as occasion requires, whilst the machine is at work, and by this adjustment obtaining an

exact correspondence between the velocity of the revolving web and that of the revolving felting; for, should one exceed the other, the paper would either be torn asunder or carried round upon the under side of the web, and be spoiled.

1

D.D,

Fig. 3. In No. 2 of the drawings hereto annexed (see Plate X.) is a plan and section of the adjustable or expanding rigger or band wheel. AA is a cast iron flanch or plate hung upon the spindle B B. CC are two rings cast upon the face of the flanch. The intermediate space between the rings is turned flat and true, so that its plane may be at right angles with the axis or spindle upon which it turns. &c. are round pins inserted and made fast in the rings at a proper distance from and 'parallel with the face of the flanch, forming so many radii or parts of radii at equal distances round the flanch; and and upon these radii or pins we cause the pieces E E, &c. to slide, the pins passing through the holes at each end of the pieces at F and G corresponding to the diameter of the pins; one end of each piece, as at H H, is made to extend on each side of the pins, and fitted to the face of the flanch so as to prevent the pieces E E, &c. from turning or tilting sideways upon the pins, but nevertheless allowing them to slide freely upon the flanch. II, &c. are wooden segments forming the periphery of the wheel, and fastened upon the sliding pieces EE, &c. K is a straight round pin inserted in a hole in the centre of the spindle and in which it is at liberty to slide in and out. LL is around plate fastened upon the centre pin K, and the connecting pieces MM, &c. have one of their ends attached to the edge of the plate L by means of a joint, and the other to the sliding pieces E E, &c. in the same

manner;

manner; so that whenever the centre pin is pushed in, and the plate brought nearer to the flanch, the sliding pieces and segments II will uniformly expand, and the diameter of the wheel be increased; or, on the contrary, if the pin is drawn out, the diameter will be decreased. The pin is pushed in, drawn out, or held in any required position by the screw NN, by which the rigger may be regulated whilst in motion.

In the general drawing No. 1 is represented likewise the machinery for communicating motion to the hogs or agitators TT, &c. The long spindle C n is put in motion by the pinions and wheel Co Co Co; upon the other end of the spindle C n is hung a cast iron flanch C p, with one of its sides made flat and straight across, against which the edge of the wheel C q is held with such a degree of pressure as that the friction between the flanch and the edge of the wheel C q may be sufficient to cause the wheel C q to revolve and give motion to the agitators. The wheel C q is made to shift upon the spindle Cr, and capable of having its edge opposed to the face of the flanch at any intermediate distance between its centre and circumference, for the purpose of adjusting the velocity of the agitators to the velocity of the machine, which varies with the quality and thickness of the paper made thereby.

We likewise give motion to the lifting tubes Bl from the spindle Cr by means of the two riggers or band wheels Cs and Ct.

In some situations where a water wheel cannot be conveniently applied to give motion to the shaking bar t, we connect it with the spindle Cn, and regulate its velocity by two friction wheels similar to those at Cp and C q.

We

We now proceed to describe the means used for sub dividing or cutting the long sheets of paper made by our said machine into others or smaller ones of the required dimensions; that is to say, we construct a wooden frame ør table of a convenient height, its length is determined by the dimensions of the sheets of paper into which the long sheets upon the reels or rollers are to be subdivided or cut, and its width is made somewhat more than the widest sheet which can be made by the machine by which the paper was formed. The reel or roller containing the paper intended to be cut is placed immediately above one end of the said table at right angles with its longer sides, and parallel with the top or upper surface thereof. The pivots or axis of the reel or roller are supported and allowed to turn in two wooden posts affixed to the ends of the table for that purpose, so that two workmen, one on each side of the said table, by Laying hold of the corners of the sheet may draw it from the reel and spread it upon the table preparatory to its being cut or subdivided into smaller ones.

Near that end of the table over which the reel or roller is suspended, and parallel with the reel, we place two long hardened steel plates about three inches in width, and about one-eighth or one-tenth of an inch thick, and their length ought to exceed the width of the widest paper to be cut about thirty inches.

These steel plates we affix to two strong iron bars by means of screws or clamps, one steel plate upon each har; and place them in such a position across the table that the upper edges of the steel plates may be parallel with and about one twentieth of an inch from each other, and in the same plane with the upper surface of the able upon which the paper is to be spread. The under

or