To Inventors and Patentees. MESSRS. ROBERTSON & CO., PATENT SOLICITORS, 166, Fleet-street, London; and 99B, New-street Birmingham. (Of which firm Mr. J. C. ROBERTSON, the EDITOR of the MECHANICS' MAGAZINE from its commencement in 1823, is principal partner,) undertake The procuration of Patents For England, Scotland, Ireland, and all Foreign Countries, and the transaction generally of all business relating to PATENTS. Specifications Drawn or Revised. DISCLAIMERS, AND MEMORANDUMS OF ALTERATION PREPARED AND ENROLLED. Caveats Entered and Oppositions Conducted. CONFIRMATIONS AND PROLONGATIONS Searches made for Patents, and Copies or Advice on Cases submitted, &c. & c. INTENDING PATENTEES supplied gratis with Printed Instructions, on Application, either personally or by letter. AGENTS: For Manchester, Messrs. Wise and Wood, 3, Cooper-street. For New York, Mr. Thomas Prosser, 11, Platt-street. Advantages of Registering Designs for Articles of Utility. Under the New Designs Act, 6 and 7 Vic. c. 65. Protection for the whole of the three Kingdoms by one Act of Registration. Protection for a term of three years. Protection at a moderate expense (from 127. to 202.) Protection immediate, (may be obtained in most cases within a couple of days.) Power of granting licenses for any of the three Kingdoms, or any of the cities, towns, or districts thereof, to one, two, three, or any greater number of persons. Summary remedy for Infringements. For a copy of the Act, with Table of Fees, and Explanatory Remarks, see Mechanics' Magazine, No. 1047, price 3d.; and for Lists of Articles registered under the New Act, see the subsequent Monthly Parts. Specifications and Drawings, according to the Provisions of the Act, prepared, and Registrations effected without requiring the personal attendance of parties in London, by Messrs. ROBERTSON and Co., Patent and Designs Registration Agents. 166, Fleet-street, and 99B, New-street, Birmingham; or by their Manchester Agents, Messrs. Wise and Wood, 3, Cooper-street. Ornamental Designs also registered under the 5 and 6 Vic., c. 100. To Engineers and Boiler THE BIRMINGHAM PATENT IRON TUBE Gutta Percha. PEROHA. FACTOR HANCOCK'S WEST HAM STRATFO HA ANCOCK & CO. solicit attention to their very superior manufactures in GUTTA PERCHA, &c., which they continue to supply on their usual advantageous terms, having secured an unlimited quantity of the raw material previously to the late speculations in the market. As LICENSEES UNDER THE FIRST PATENT granted for the manufacture of Gutta Percha, they further beg to inform their Correspondents that with regard to any dealings had with H. and Co. for goods manufactured by them under their License, they are ready to hold all their customers harmless and indemnified from any proceedings which may be threatened to be taken against them, by ANY PARTIES assuming to be Patentees under subsequent Patents; the only stipulation on the part of H. & Co. being that they and their Solicitor shall have the conduct of any defence that may be considered necessary. MUSEUM, REGISTER, JOURNAL, AND GAZETTE. No. 1373.] SATURDAY, DECEMBER 1, 1849. [Price 3d., Stamped, 4d. Edited by J. C. Robertson, 166, Fleet-street. FONTAINEMOREAU'S PATENT JACQUARD LOOM. (Patent dated May 22, 1849. Specification enrolled November 22, 1849.) THERE has been much talk of late of some vast improvement made in the Jacquard loom in the country of its invention, and patented in England, on behalf of the inventor, by Mr. Fontainemoreau. We now give the specification in full. The invention, it will be seen, consists chiefly in superseding the necessity for the exceeding number of cards required in figure-weaving by the Jacquard looman object unquestionably of the utmost practical importance. Fig. 1 of the engravings represents a sectional elevation of this improved loom; and fig. 2 a sectional view of the apparatus with two cylinders: A is the foundation plate, which supports the improved apparatus above the loom. BB B', B', are upright beams, provided with grooves into which the frame, H, slides. C C' is a cross-piece for connecting the upright beams, B B, B'B', at top; and D is a lever having its fulcrum at, on the columns, FF, which serves to guide the frame, H. The dotted lines, fig. 1, represent the action of that lever, when giving an ascending motion to the frame, H. E is a connecting-rod, which receives its motion through the lever, D, from the main shaft of the loom, by means of connecting-rods and levers, or otherwise; and which serves to transmit the movement of the lever, D, by means of the connecting-rod, G, to the frame, H, which is caused to slide by the action of the lever, D, and the rod, E, between the grooves made in the upright beams, B B, B'B', and to impart motion to the lever, U. II' is a cross-basil bar set within the frame, H, whereby the upright hooks, J J', are raised, when the keys, O O', bring them to the front. J J', represent the upright hooks for raising the leashes or lames. K K, are horizontal conductors or needles, through which each of the upright hooks, J J', passes. These conductors cause the upright hooks, J J', to approach or to recede from the cross-piece, II, according to the motion of the keys, O O', which have their lower extremities attached to the conductors, KK. LL are spiral springs, which are attached at one end by means of pins to the conductors or needles, K K, and at the other end by hooks to the cross-piece, M, and serve to bring back the keys, OO', when their upper extremities, which bear upon the cylinders, have left the pegs. M is a crosspiece supporting all the spiral springs, LL, and to which these last are attached at one of their ends by means of small holes. N is a cross-piece for stopping the ends of the moveable keys, OO', which are placed and move upon the axis, ', which carries them all, and which is set on the upright beams, B'B'. These keys are put in motion by the pegs with which the cylinder, S, is provided. The number of the keys, OO', of the upright hooks, JJ, of the conductors or needles, KK, and finally of the spinal springs, LL, is the same. S is a cylinder provided with any suitable number of moveable pegs for causing the keys, O O', to work according to the required patterns; they are set in and removed from the cylinder, S, by one of their extremities, which terminates in a screw for that purpose. The axis of the cylinder, S, turns freely in bearings set close to the axis of the keys, O O', on the bearers, B'B'. T is a click and spring-work for moving the toothed wheel, with which the cylinder is provided, and by which the rotary motion is given to it. U is a bent lever, receiving its movement from the frame, H, by means of the small roller, a, with which this lever is provided. When the frame, H, ascends, on account of the motion communicated by a lever, D, to the rod, E, the lever, U, is drawn back by the action of the spiral spring, b, which returns to its natural position; this movement of the lever, U, causes the double click, T, to engage the cog of the toothed wheel, whereby the cylinder is stopped; when the frame, H, descends by the contrary motion of the lever, D, the lever, U, rises up again, and being pressed by the smaller roller, a, causes the toothed-wheeled conductor of the cylinder, S, to advance, and this last communicates the same rotary motion to the cylinder. S. Z, Z', are columns connecting the plate, AA', which supports the Jacquard machine with the other part of the loom. a is a small roller set at the lower extremity of the frame, H, which gives motion to the lever, U. 6 is a spring which acts on the bent lever, U, and causes it to return to its proper position. In the ordinary process of producing figured tissues or ties, each design requires a special set of cards; but by the application of this apparatus, several patterns can be worked by the same cylinder, without causing any delay or stoppage of the work. For this purpose, a number of pegs, double that of the keys, is set on the cylinder, S, and each peg corresponds at first to every key, which produces a design; another peg is inserted in the space which separates each key, whence it follows that, to have the pegs acting on the keys, O O', it is only required to cause the cylinder to advance sufficiently to have the pegs acting under the keys; the other pegs, which were operating before, will occupy the empty spaces, which are replaced on the work by the other pegs. By such means, the cylinder, S, affords the facility of producing two designs. This system may serve to multiply the designs by employing two or more cylinders, prepared as before stated, and set under the cylinders, S. This arrangement is represented by fig. 2, which is a sectional elevation of the apparatus provided with two cylinders. The plate, A A, is prolonged sufficiently on the side opposite to the column, F, to receive the two supporters, PP', similar to the supporters, B B, B' B', and connected at top by the cross piece, CC, and at bottom by the carriage, V V, which can be moved by means of the lever, X, in a direction parallel to the axis of the two cylinders, SS'; on these supporters, P P', slides the frame, Q, of the two cylinders, SS', which is free to ascend or descend on the frame, P P', by means of a rack, put in motion by the handle, R. The range of this rack is such, that the lower cylinder, S', can take the place of the upper one, S, whereby they are placed against the centre of the top of the keys, O O', and can be made to produce separate patterns, without stopping or even causing delay in the working of the loom. The number of these cylinders can be increased according to the series of patterns to be executed. Fig. 3 represents a cylinder provided with the plates, fitted with the pegs for actuating the keys, O O'. A is a wooden or metal cylinder; B, B, B, the sole plate, which supports the pegs when they are placed on the upper band, C, which is of brass, and pierced with holes to receive the pegs according to the designs to be worked on the tissue. D', D', D', are the pegs to raise the keys, O O' (figs. 1 and 2) during their rotary motion round the axis of the cylinder. Fig. 4 represents a section and plan of one of the plates or bands, on which the pegs, D', D', D', are set. This plate is composed of two parts, the upper one, A A, being pierced with equidistant holes to receive the pegs, D', D', D', while the lower part, E E, turns on one side upon a pivot over the first part, and is kept on the other side by means of a screw. The object of this apparatus is to maintain all the pegs, D', D', D', in the holes wherein they have been placed. A A represents the upper brass band, provided with counter-sunk holes to receive the head of the pegs, D', D', D'. BB is the axis on which the band, EE, turns; C, iron screws uniting the bands, A A and E E; D, D, D, holes properly disposed on the bands to receive the pegs. E' E' indicate the position of the band, EE, when it is opened, in order to change the position of the pegs. Fig. 5 represents the manner in which the pegs, D', D', D', raise the keys, O'O', the number whereof is half less than that of the pegs, D', D', D', so that a single movement in the direction of the arrow will alter the working of the pattern, by causing the keys to be in communication with pegs placed in a different position. A A' represents the plate fixed upon the cylinder before described when speaking of fig. 3, which is provided with moveable pegs. B, B, B, C, C, C, C, are the disconnected keys, that is to say, the keys which are to be acted on by the pegs, B, B, B; C', c', c', c', represent the keys put in motion by the pegs, B, B, B. It is often necessary to work large patterns in the tissue, when the circumference of the cylinder, A, fig. 3, may not be sufficient for their production, although its diameter cannot be increased to the required extent, without complicating or rendering the apparatus too heavy. To surmount this difficulty, an endless chain, composed of the metallic horizontal bands or plates, provided with pegs, is employed. The metallic plates are not set horizontally round the cylinder, as before described, fig. 4, but are united one to the other at their two horizontal extremities by hinges, which render them perfectly moveable: the cylinder, in this case, is provided with proper pins, set round at each extremity of its horizontal length, which are caused by the chain, on its being put in motion by the rotation of the cylinder, to act on the keys, C', C', C', C', whereby all that which the cards can produce is obtained by an arrangement much more certain and quicker. The plates are always the same, whatever may be the pattern to be executed; the pegs alone vary in their position; but the arrangement of them is effected with the utmost facility and precision, and nothing can disturb their action, so that all mistakes can easily be rectified, if any were to occur. A A'(fig. 6) represent the link of the chain, which is composed of the horizontal metallic bands or plates set with pegs, in a manner similar to the plates represented by fig. 4. B B' are the hinges; C, C, C, the axis of the hinges; D D', the plates carrying the pegs; E, E, E, lower bands supporting the pegs. Instead of placing on the cylinder, A (fig. 3), the metallic plates, A A (fig. 4), or the endless chain formed of a number of metallic plates (fig. 6), and provided with pegs, as before described; these plates, either separately, or as an endless chain, can be set on the cylinder with their surface perforated with suitable holes at the required distance. In that case, the head of the key, OO' (fig. 1), will be made to enter by the rotary motions of the cylinder, (into the holes of the plates, and will give the necessary movement to the conductors, K K', and to the upright hoops, J J', as before described. For claims, see p. 523. (To be continued.) COAL MINE VENTILATION -MR. BRUNTON'S AND MR. LLOYD'S MACHINES— AN OLDER THAN EITHER. Sir, I observe in the Mechanics' Magazine, of Saturday last, some account of an apparatus for ventilating coal mines, extracted from a pamphlet just published by Mr. Brunton, and as that apparatus is almost identical with one which I erected in June last, for the same purpose (and patented nearly five years before), I think it due to myself to put in a claim for priority of invention, both as regards Mr. Brunton and Mr. Lloyd-both of whom, however, I can readily suppose were not aware of what I had done. My intention in putting up the apparatus I have referred to as being erected in June last, was to show experimentally its applicability for the ventilation both of mines and sewers, and I therefore cannot now allow the matter to pass unnoticed, lest I should hereafter be thought to be a mere copiest of the inventions of others. I hope, therefore, you will allow me a space in your valuable columns to give a description of my apparatus, and to relate the means which I took on a former occasion to bring it under the notice of those most interested. When the Select Committee of the House of Commons was appointed to examine the causes of explosions in coal mines, I thought it a favourable opportunity for bringing forward my plan of exhausting the air by mechanical means; and upon the first intimation in the Times of the appointment of the Committee, I commenced constructing the apparatus (of which I enclose a sketch). In the mean time, two shafts were sunk on my premises, communicating with each other by an underground tunnel; the whole was lined with brick in ce ment, and when finished, presented an uniform bore throughout of 3 ft. 6 in. in diameter, one shaft being left open to represent the down shaft of a mine, while over the other, or upcast shaft, was fixed the exhausting apparatus connected with an engine of about four-horses power, and capable of drawing out 15,000 cubic feet of air per minute. The whole was completed, and worked by steam, on the fourteenth day after the notice first appeared in the Times of the appointment of the Committee. A series of experiments was then made with it, which clearly showed its applicability to the intended purpose. From these I select the following, as affording sufficiently striking evidence of the efficiency of the apparatus. A very open iron grating was placed over the downcast shaft, and a large heap of shavings piled upon it. A lighted match was then applied to the top of the heap, and the exhauster set agoing. The flame and smoke both passed downwards with immense velocity through the whole mass of shavings, and, carrying air with it, a vivid combustion took place, the flame descending in a vast body, and reaching from 8 to 10 feet down the pit, while none of the smoke or flame ascended from any portion of the burning mass; the general law of the ascent of heated air and flame being thus inverted by the more powerful agency of the apparatus operating against it, showing at once its superior force over the ordinary means of creating an upward draught by fire. In another experiment a flat disc of wood was made to fit loosely the side walls of the upcast shaft, so that it might move up or down the shaft freely, and three cords were attached near to the edge of the disc and united in a loop, in the same way as the cords of a common pair of scales are fixed to the boards,-except that the scale in this case was inverted, and the cords placed downwards. At the loop where the cords unite, a half hundred weight was suspended. The disc being placed in the bottom of the upcast shaft, and the exhauster put in motion, the disc with its load rose instantly, striking the under side of the apparatus violently, and remaining suspended as long as the apparatus was supplied with steam. In this way 84 lbs. was taken up; so that in a mine where the shaft is 6 feet in dia |