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aërated fresh water. On the outer case a pump- tubular boiler, which is surrounded by an air tube in communication with a refrigerator g, which is ing engine is fixed for the purpose of keeping a or by a thick packing or felt A as shown ; K' is surrounded by cold water. The condensed steam constant supply of cold sea water to the condenser, another boiler which surrounds or encases the felt circulates through the pipes of the refrigerator and for feeding warm salt water from the conden- and tubular boiler K. M is a dome or steam-chest, and finally enters a filter, from which it is drawn ser to the boilers. The pumping engine is worked which is fitted to the boiler K and receives the off pure water by a pipe furnished with a tap. by steam from the steam-chest first described. steam generated therein through a pipe L. I is Atmospheric air is drawn into the dome M for A pipe is connected to the outer boiler, rising to a perforated plate placed near the upper part of the purpose of aërating the water through another the water line to allow of a constant discharge of the dome; J is a steam-pipe for the passage of pipe, but which enters the side of the said dome. brine to prevent incrustation. The flues after steam to drive the engine N, which is fixed on the A jet of steam is admitted into this pipe in a leaving the boiler tubes pass round or against upper part of the whole apparatus and is intended downward direction through a pipe leading from an oven, in order to utilise the heat which would to keep up a constant supply of sea water to the the dome M, for the purpose of creating a draught otherwise be lost.

boilers K and K' and to the condenser.' M is of the air. The products of combustion after Fig. 1 of the accompanying engravings is an another and smaller dome placed in the interior passing through the flues of the tubular boiler isometrical perspective view, partly in section, of and at the lower part of the larger one. It is per- pass off to the chimney; i is a brine cock for an apparatus for cooking, roasting, and baking, forated at its lower part at a a, through which discharging water from the boiler. and for purifying and aërating sea water, con- perforations steam and any salt water that may A modification of the apparatus last described structed according to this invention. This appa- rise with it enter the small dome M'; b is a glo- is illustrated in the isometrical perspective enratus is a very convenient one for transport to bular valve, into the seating of which a pipe c graving Fig. 2, in which a single boiler only is foreign parts as a land apparatus, occasioning no enters which curries off the salt water just men- used, and the arrangement of the parts is altered ; trouble when at its destination, because it is tioned to the boiler K". M" is another dome or the method of action, however, in order to obtain packed for transport without being taken to steam chest similar to that just described, it also pure aërated fresh water from sea water, is in both pieces or interfered with in any way. It may contains a perforated plate I', an internal dome cases the same. Fig. 3 is a longitudinal section even be mounted on wheels and drawn, if which is perforated as before, and globular valve of the same, and Fig. 4 is an end view; E is the required, from place to place. E is the fire b; e is a pipe fitted to the upper part of the fireplace; E' E' are the furnaces ; F is the furnace place, El are the furnace bars, F is the fur. dome M, through which steam passes to be con. door ; G is a hot-plate for stewing; H H are nace door, G is the ashpit. K is an ordinary | densed. This pipe e leads into a water cistern f | guard-rails fitted round the hot plate. Bürs or

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TO THE EDITORS OF THE are fitted to the guard which are intended to | annual trade transactions between that island and

THE CORT TESTIMONIAL FUND. support saucepans or other cooking utensils, the mainland are stated by the Launceston papers

MECHANICS' MAGAZISE." and to prevent them from rolling off or to be now represented by a sum amounting to

Manchester, 14th December, 1859. shifting. J J are steamers of the ordinary more than £1,000,000 sterling, and, as the marconstruction fitted or placed at the top of the kets of the one colony are entirely, regulated by article in your Magazine complaining in titter

GENTLEMEN,–I have read with surprise an apparatus; K is a boiler the water in which is those of the others, it cannot be otherwise than a heated by the products of combustion passing matter of deep importance that a close intercom- terms of the conduct of the Cort Testimonial through flues L L. M is a dome at the upper part munication should exist between them.

Fund Committee. The aspect of the case as pre

One of which a safety valve is fitted, and which has a chief source of risk and expense said to be con

sented by you is calculated seriously to prejudice tube placed inside the dome and extending to nearly nected with tbis line is, tbat it has been laid in the interests of the Cort family, inasmuch as it re. the top thereof. The steam which is generated in four separate sections—first from the north side flects discredit upon a number of gentlemen who the boiler passes up this tube and decends between of the king's Island to Cape Vtway on the Aus- met only five weeks since, and, actuated by the the tube and the dome M, surrounding the cooking tralian coast, then in the opposite direction from utmost sympathy for the family, resolved upon a boilers 0 0 (as indicated by the arrows). The King's Island to Hummock's Island, thence to course which, to the best of their judgment and flues L L are in communication with a smoke box Circular Head on the north coast of 'l'asmania, and knowledge of the case, was most likely to secure P, through which the products of combustion pass from that point along the coast to the entrance the end they wished to attain. They proved their to the vertical tubes Q Q which surround the of the Tamar, where it joins the land line to liberality by subscribing £260, of which £30 was baking ovens shown in Fig. 4. C is a division Launceston and Hobart Town. From this arrange given to Mr. Cort; and to a iman in needy circumi

stances this could not be, nor ought to have been, plate and damper, and T' is a chimney. V is a ment the shore-ends of the cable are numerous, hot closet heated by the products of combustion as and all of them are said to be considerably exposed a sum received with ingratitude. The committee they pass from the flues (L to the tubes QQ. V" is to injury from the nature of the places at which the passed the resolution quoted by you, which it is a gauge to indicate the height of the water in the landings have been made. Under those circum- my duty to see carried out, and beyond that reso. boiler.

W is a hand puinp shown in Fig. 2 by stances it is being urged upon the Governments of lution it is impossible to go without another meetwhich salt water is forced into the boiler; or instead Victoria and Tasmania that they should at once ing being held to rescind it. So far, about 2530 of a band pump a donkey engine may be employed. incur the additional expense of procuring from have been subscribed, and it was hoped that £2000 Steam is led through a pipe from the boiler { to England sufficient surplus cable to make good would soon have been obtained; which sum in. a refrigerator or condenser placed at or near the any injury which either of the four sections may vested in annuities, (after placing the family in lower part of the apparat us. A cock is fitted to the sustain ; and this, we think, is a very reasonable circumstances free from debt,) would have been a upper part of the steam pipe, which regulates the suggestion, seeing how many chances of accident comfortable yearly income to the recipients. No pressure or quantity of steam allowed to circulate the line is exposed to.-Australian Mail.

public movement, as you are aware, can be carried round the cooking boilers. The condensed steam

through without affording reasonable time for after entering the refrigerator traverses the pipes

working it, and that is all the committee require HADLOW'S LINEN MARKER.

in this case. A few weeks inore, and the commit. IY, enters a compartment Y', and passes from thence to other pipes Y" Y", after traversing The marking of linen is an operation which is tee Hope to conclude their honorary labours, if which it enters a filter 2 which is provided with often performed badly, and often neglected alto. their appeal be but promptly responded to. Allow partitions Z' Z', so arranged that the water may gether for want of a convenient mode of execnting me to beg you will not again by injudicious statepass through an extended surface of the filtering

it neatly and easily. Observing this, Mr. F. V. ments damp the generous ardour of those who medium. A pipe is provided by which prire fresh Hadlow, of Prince Albert-street, Brighton, has have taken up this case, much less attempt to water is drawn off. The space round the refrigerat- contrived and obtained patent for a simple question the justice or benevolence of such men as ing tubes is filled with cold salt water, and the little arrangement of apparatus by aid of which those who at once and so nobly responded to tbe partition that divides the water in the boiler from we may henceforth get rid of all difficulty in the claims of genius, or age and infirmity. I am, &c.

DAVID MORRIS. that round the refrigerator is composed of felt matter. encased in iron, which prevents any heat passing

It is a neat combination of a relief engraved [We must take the liberty of telling Mr. from one compartient to the other. A pipe is

box-wood stamp, bearing the name, &c., to be Morris that we esteem the above both a very provided for the admission of atmospheric air to placed upon the linen with a supply of Bond's foolish and a very impertinent letter-espethe condenser. A small pipe leading from the marking, ink, the whole being contained in a small cially the last part of it. What have we said boiler K enters the air pipe, down which it extends

This case (of birch-wood) is turned in three to " damp the generous ardour of those wbo have a short distance in order to create a draught for pieces, screwing together for opening and closing: taken up this case," or to “question the justice or the air down the pipe W. a is a feed cock to the The central portion contains a very small bottle of benevolence of such men,” &c. ? Did we not exboiler and a waste water cock from the condenser, fluid marking ink and the engraved marker, just pressly say, that the whole thing to which we b is a discharge air pipe, c is a tap by which bot large enough to hold firınly between the thumb and objected was "doubtless an oversight," and that distilled water is drawn off, d d are mud holes, f is fingers. The top division, in the form of a deep we gave Mr. Fairbairn “ample credit for meaning a brine cock by which the brine can be constantly down upon this, whilst the base screws on to the Morris-who is but a novice in reference to the

cap, with an ornamental moulding, screws and purposing well ?” We would inform Mr. withdrawn, and incrustation of the boiler thereby bottom of the central piece, and serves as the reto a great extent prevented.

Cort case—that by several years of well-considered We have taken puins to inquire into the work. ceptacle for an india-rubber disc, with a black advocacy of this case we have earned the right to ing of these apparatuses as designed by Mr. cloth disc over it. On the base or lower face of offer a suggestion, and even to administer a Graveley and manufactured by Messrs. Winchester the central piece there is attached # code of direc- rebuke, when other friends of the cause are comand Co., and we find they have given great satis- tions for use, so as to be everat hand and most conve: mitting great and palpable errors. We woald faction to owners. They are cheaply inade, easy niently accessible. All that is necessary is to spread further tell him, and our readers also (although to work, and will run for several voyages without india-rubber base, press the face of the marker old and tried friends of the Cort family, and some

a drop of ink upon the cloth disc iusting upon its the Intter will have foreseen it) that some ot the requiring any repairs worth mentioning. While, therefore, costly and uncertain apparatuses are

upon it, and then apply it to the linen to be members of the committee even, are as much constantly being forced upon the notice of ship- marked. When warmed subsequently by an iron astonished as ourselves at the strange resolutions owners, we cannot fail to bring the merits of the impression comes out clear, black, and inde passed at the late Manchester meeting of the these more economical and efficient ones to their lible. The same apparatus answers for paper and committee, and are wondering why the family are attention.

other surfaces. If little ink is used, the markings not instantly relieved from their liabilities. We

are very sharp-quite different to the blurred have nothing to add to, and nothing to take from, THE TASMANIAN SUBMARINE CABLE.

hieroglyphics usually met with. The arrange- our last week's remarks on the management of the

ment is so convenient and effective, that all who committee. We will only, therefore, add that the The first submarine electric cable of any conside- have frequent necessity for marking numes, num. past liistory of the Cort case has demonstrated the rable length in this part of the world has now bers, or addresses, must find it extremely useful. strong necessity there is for looking after the been successfully laid and opened for public use.

money contributed for the benefit of the family; The 120 miles of Bass's Straits is thus annihilated, so far as the communication of intelligence is con

The Duncan, 101 guns, has been launched at Ports and no anger of Mr. Morris's will prevent is cerned, and the island of Tasmania is for many to be immediately laid down under the shell vacated perly administered, or that those (if any) who may

mouth. A 51.gun frigate, to be named the Dryad, is from seeing either that the present fund is proimportant purposes as closely united to the main by the Duncan.

attempt to inisapply it shall have their proland of Australia as though no sea rolled between

Paris papers state that the French Government ceedings brought to light. If Mr. Morris writes them. This, it will be admitted, is a work of has ordered the systematic gathering of seaweed from to us again on this question, he must amend his some magnitude for these colonies, and is credit the rocks of Normandy and Brittany, to serve as tone, or we shall feel bound to enter with greater able to the enterprise of Victoria and Tasmania, / wadding for artillery, for wluch purpose it serves admi- minuteness than before into the proceedings that who have themselves found the whole of the fundsrably.

have taken and are taking place in connection for the undertaking. In this case the object to be Among new inventions åttracting notice is one

with the Manchester Fund. All we ask is, that gained is worth even some annual expenditure in called the Patent Adamas, a silicious composition, the money subscribed shall be applied to its excess of returns, if the line cannot be maintained tion or destruction from heat or acids, and which is legitimate object without delay,

and we do not Tasmania the advantage of instant communication panies as a material for burners, which will save them from the poor and extreinely aged people.with these colonies must be very great. The the expense of constant renewals.

EDs. M.M.).


Ind. h. p.



that I am aware of, which is, the foulness of their ton-reel, caused by the spindle, and used in plac

bottoms. All else refers to boilers, engines, and ing the cop on the shuttle. In practice it was TO THE EDITORS OF THE “MECHANICS? MAGAZINE," propellers

. Velocity is the natural, as it is the only found that a great deal of cotton was wasted by GENTLEMEN,—It is very probable, as Mr.

test of a ship's form, and of the cleanly or dirty the bottoms of the cops being “ britted” while Atherton says, “that it is rather a trial of one's state of her skin ; but it is very unnecessarily, and being taken from the mules in baskets to the mapatience to repeat explanations in matters of in a very round-about way, a test of anything chinery for the next process of manufacture. To theoretical investigation,” but the greater trial of besides.

obviate the difficulty, gutta-percha foundations for patience to which, notwithstanding, I would

We now come to the case of vessels of different the cops were used; but a more complete remedy again respectfully invite him, is to give au answer

types : here the comparative worth of the form is was discovered in running a brush of paste along to the objections urged against these same expla- fairly the point at issue, that is, the types them the mules, so as to coat the bottoms of the cops nations, or else to admit their validity. In the selves are on trial, and therefore we must have a and render them less liable to injury,

John pi formula the objection to the į power of test or formula which is applicable to them all. Fielden, the plaintiff, and Enoch Fielden were

This is in fact saying, that it must apply to vessels friends, and, in a conversation one Sunday afterdisplacement is, that in the case of vessels which in common, without any classification into types noon, the latter suggested that paste would do. are not of the same form or type of build, it is at all, at least as a point of necessity. But here the John Fielden experimented and took out a patent not identical in value with the midship section, power of displacement is a misleading quantity, first. Enoch Fielding stated that before the conand is therefore erroneously employed instead of because it is no longer identical in value with the versation he had experimented and tested by sucit ; and that in the case of vessels which are of midship section. Now, according to Mr. Atherton's cess the value of his invention. He also took out the same type, and where of course it is admitted own admission, this section is the true basis of any a patent, and Messrs. Lord defended this action, that there is a virtual identity in these two ex- formula ; and so it is if velocity be the sole useful relying upon Enoch Fielding being the first inpressions, the formula embodying either affords no effect to be inquired into; but for some reason ventor. information concerning the comparative merits of which I cannot conceive, he chooses to express it The case commenced yesterday, and occupied steam-ships as marine constructions, either in in terms of displacement. If, however, we do so the greater part of to-day, terminating in a verpoint of velocity alone, or in conjanction with in this case, where such expression is erroneous, dict for the defendants. carrying capacity. How can it, when they are all both as a substitute for the other and for its own alike, except in size? The co-efficient set up for demerits besides, the comparative results of steam

OXLEY'S PATIENT HINGES, ETC. a standard would be common to all, apart from ship performances so ascertained cannot be other: COURT OF COMMON PLEAS (second court), Deo. 13. the influence of size. The formula might give wise than false. So then, in fine, for vessels all some information concerning the comparative of one type the formula is useless, and for those

This was an action to recover £50, being the efficiency of propellers, but Mr. Atherton repu- of different types worse than worthless

. diates any utility in this direction, by assuming

The midship section formula is appropriate for tain hinges, elastic cushions, and studs and plates

amount claimed for royalty upon the sale of certhat practically it may be considered to have a velocity, but to represent the comparative worth intended to be used in the windows and

doors of constant ratio to the power. The formula affords of vessels in the aspect of velocity and carrying railway carriages, the object of which was to preno information concerning the comparative re- capacity conjointly, we must, I repeat, make the vent the

noise and jarring usual when trains are sultant efficiency of the several means employed in simple displacement the basis of the formula.

in motion. The plaintiff, who claimed to be the the production of power, for it accepts it as with the use of either it will not be necessary to inventor of the above articles, had entered into an already provided, and as declared by the indicator. class vessels according to their type. No such What then remains to be determined ? and which classification is imperatively required with the agreement with the defendant, whereby the latter the co-efficient of performance can in a compara- Cornish steam-engines, in order to estimate and ing upon each a royalty of 4d., it being further tive view be supposed to indicate ? Nothing as I register the duty done by them; nor would it even stipulated that the plaintiff should be paid at all can see, except the influence of size, in which item be useful, except as between pumping engines and events £100 per annum by four equal quarterly there is no variety, nor any scope for the exercise crank engines, where the difference is too great of skill which can, like form, be tested in this for a fair comparison. All other minor diversities novelty of the alleged inventions, and that the de

payments. There were pleas negativing the way. Sach influence can result only from a of construction go themselves as influencing cir- fendant was induced to enter into the agreement diminished ratio of water friction accompanying cumstances into the estimate of performance, an increase of displacement under the same type. along with boilers and modes of stoking. In steam. | by the fraud and misrepresentation of the plaintiff.

The jury found a verdict on both issues for the Now, it would be very desirable to ascertain the ships it would also be useful to divide them into

plaintiff. rate of augmentation of useful effect, by this dimi- transport and passenger vessels, but without need- Mr. Wordsworth, Q.C., and Mr. Henry James nution of the useless effect; but being once deter- ing any very exact line of demarcation. Either appeared for the plaintiff

, and Mr. Serjeant Shee, mined for the type, what permanent utility would formula would apply to each class, but that based Mr. Hindmarch, Mr. Keane, and Mr. Griffiths for the formula be to merchants ? And yet this is its on the simple displacement would be more pecu; the defendant. ostensible purpose.

liarly appropriate to the former, and the one based When, indeed, the weight of coals burnt per on the midship section to the latter. hour is substituted for the indicated horse. power Mr. Atherton applies the word “duty" to a dy- Our Weekly Gossip. as the denominator in this formula, we do obtain namic performance in which velocity is an element. some information on steam-ship economy, in the It is really undesirable that mathematicians should The Admiralty have decided upon building two new coal-consuming, though not in the building de- take up with words of practical origin, and ex- iron frigates in addition to those now in course of partment; but the duty done per ton of coals pressive of practical but yet scientific, though not construction by the Thames Iron Shipbuilding Com. could be ascertained more directly, and in a much at the time mathematical ideas, and make them pany and Messrs. Napier of Glasgow. The new better manner, if the performance was registered include what was not at first intended. “Work” frigates are to be of a similar construction to those as declared by the indicator, or by a dynamometer ;

and now

duty" are invested with time and ve already in progress, but of smaller dimensions. Conbecause the influence of all extraneous circum- locity, although originally expressive of power Palmer, of Jarrow, and the other by Messrs. Westwoud

tracts for them have just been taken, one by Messrs. stances would be eliminated, and because neither measured by space alone. Mechanical power and and Baillie, of Millwall. It may be well to state that tiine nor velocity, which indeed do not belong to mechanical effect were the terms employed, when

the two new frigates are designed exclusively for homo it, would be implicated in the estimate of duty. the idea of time was involved.

defence. And this leads me to say, that for vessels of the Yours, &c. BENJAMIN CHEVERTON. The Queen has granted a pension of £150 a-year same type, and not differing greatly in size,

out of the civil list pensions to the daughters of Henry any difference in the co-efficients of perform

Cort, whose inventions in the manufacture of iron ance observed in practice by application of the

Law Cases.

have contributed so much to the prosperity of the V3 Di

trade, while his family have been left in deep distress. formula must be explained as the


The Queen has also been pleased to grant à pension wt. of coal.

on the civil list of £125 a-year to the sisters of the result of differences in furnaces, fuel, and firing. COURT OF QUEEX’s BENCH, Dec. 13.-(Sittings at late Dr. Dionysius Lardner, whose contributions to This modification of the formula may have a

Nisi Prius, before Lord Chief Justice Cockburn science are so well known. certain utility if confined to vessels of the same

and a Special Jury.)

It is a singular fact, and one which illustrates the type, provided we are given to understand what is

dependence of trades of almost every kind upon the truly indicated by it, and that we are not informed

Mr. Wilde and Mr. Hindmarch appeared for the eccentricities of the devotees of fashion, that since the that the fact of inferiority being established, the plaintiff, and Sir F. Kelly, Mr. M. Smith, and Mr. drawers, and a considerable section of the wire

extensive use of crinoline in England, the wiretype of form of the hull, with the condition, con, Aston for the defendants. The plaintiff, a work workers of the kingdom, have been exceedingly busy; struction, or management of the boilers and man employed in a cotton-mill, brought this action and are at this moment obtaining very high wages ! machinery,” are equally points where " the fault against a mill-owner for an infringement of his It is not easy at once to comprehend the cause of this may be," and that “under this scrutiny all bad påtent for improvements in the construction and phenomenon, or to trace the connection between types of form will be eradicated.”. Whence could building of cops, and the defendants alleged that crinoline and brass wire, but a little reflection makes arise the illusion that the type is the subject of one Enoch Fielden

was the true and

first inventor, the matter clear. The wearers of crinoline, from the ordeal, when it is so sedulously impressed upon us and that the plaintiff obtained his patent by frau amplitude of their costume and the consequent diffithat the type is a given element in the question ? dulent representations. A cop is the cotton wound their homes to danger from fire than are those other It is the vessels ranking under each type which off on the spindle in a conical shape at the ends, ladies whose dresses project little beyond the limits are tested, and they only in reference to one fault, having a hole throughout, as in an ordinary cot. assigned by nature to their fair forms. Hence the


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necessity for extra-precaution in the shape of wiro | lying on the left side as described, the centrifugal desired size, and the strip of metal passed round it, fire-guards,hence the pressure on the wire-trade force from the rolling was from the wsophagus to the the link or plate is placed on one of the hooks, and hence the high rate of wages referred to. It is pylorus, promoting digestion. The centrifugal force then the other hook is passed through the plate, by satisfactory to observe, too, that an impulse has been from the pitching of the vessel was from the head to which, when the bale is released from pressure, the given to art as well as to labour in the matter of firewards the stomach, tending to keep down my good two hooks will be inwards towards the bale, and will guards. All will remember the primitive nature of breakfast, and promote digestion also. These effects be retained secure by the plate. Patent abandoned. those articles as hitherto used in nurseries, &c., but were of course reversed on my Erst trip. The rule to 1090. C. H. G. WILLIAMS. "Improvements in now that they are required for the protection of be observed is therefore simple: "Lay on your left the manufac:ure of colouring matters, and in applying

grown-up children and have to figure “before side with your head towards the middle of the vessel.” the same for dyeing and inting fabrics and matecompany," it has been found desirable to vary their I am, Gentlemen, your very obedient servant, rials.” Dated April 30, 1859. forms, materials, and prices, and to impart“ style" and

T. Moy. By the destructive distillation of quinine, chinchrotaste into their construction. They are at present used We understand that a new process of galvanizing nine, strychnine, or brucine, a series of liquid basic in West-end drawing-rooms, as well as in humbler wire has recently been discovered by a gentleman con- substances is obtained, and it is from such substances parlours, and must be made consonant, therefore, nected with the Administration of Telegraplus at that, according to the present invention, colouring with the neighbouring furniture, the fitments of the Paris, and the application of the invention has been matters suitable for dyeing and printing fabries are refracting and ornamental stoves, and the richly orna

successfully made to the galvanization of telegraph manufactured. In employing these colouring matters mented fenders. If this were not so they would be wiros. The inventor (Mr. Cuche) states that the for printing fabrics, the patentee prepares a solution pronounced "de-ci-dedly vul-gar,” and, despite their chief advantage of his improved method over the old of the colouring matter as before, and he thiekens it preservative value during the mazy dance, a “horrid ono consists in its allowing a very thick coating of with albumen and applies the compound to the fabric baw.” We have seen some elegant specimens of zinc (which adheres in a most perfect manner) to de- by blocks or otherwise. Colouring matters may also modern fire-guards, and we know that several firms posit itself on the wire, which not being afterwards be obtained by acting on salts or compounds of aniline, in London are overburdened

with orders for them subjected to any friction whatever, prevents any toluidine, xylidine, cumidine, or cymidine with per"to be supplied immediately and regardless of cost." hindrance to the crystallization.” The zinc deposited manganate of potash, and afterwards treating the Well may the workers referred to rejoice in the preva. on the wire in this way being much thicker than by precipitate. Patent completed. lent fashion, and loudly exclaim, “ Vivat crinoline." the usual process, it consequently resists much longer

1091. J. SOUQUIERE.“ A new or improved proThe following letter suggests an important con- the action of chemical agents, &c. The discuvery has cess for distilling coal.”. Dated April 30, 1859. sideration or two :

been patented for France and foreign countries, and The patentee claims, 1, the calcination, or destrucLondon, 12th Dec., 1859. is said to be already patronized by the principal tive distillation of a mixture of pulverized coke and GENTLEMEN,–After reading your notice of the house which supplies the French Administration with coal in the manufacture of gas for obtaining a larger termination of the Board of Trade's inquiry upon telegraph wires.

quantity of gas, and also to render the coke resulting the loss of the Royal Charter in “ Weekly Gossip,”

therefrom of more value. 2. The calcination or de page 380, of your last number, I cannot refrain from


structive distillation in coke ovens of a mixture of troubling you with two remarks, in confirmation of

pulverized coke and coal for producing coke of greater the barren results to public good of such inquiries so The MECHANICS' MAGAZINE will be sent free by post to

density, which will also produce coke of good quality conducted. First, it is stated: “Her cables were all subscribers of $i ls. Bd., annually, payable in advance.

from any kind of coal. Patent completed. full 24 inches in diameter, and were tested by the Post Office Orders to be made payable to R. A. Brooman, at

1092. T. H. ARROWSMITI, “ Improvements in makers to 72 tons." Now, Mr. Trotman, in his letter the Post Office, Fleet Street, London, E.C.

carding engines.” Dated May 2, 1859. to the Times, stated (correctly) the Admiralty test for

This consists in employing one adjusting screw at such a cable is at least 814 tons. Permit me to say,


each end of the flat, for setting which screw the patenwith some knowledge of the subject, that 72 tons will All Advertisements occupying less than half-a-column tee supports and adjusts a bracket or plate formed rarely pull out the worst of work from a cable of that are charged at the rate of 3d. per line for any number of to suit the working (technically called the " set of size, particularly if made of inferior rigid iron; insertions less than 13; for 13 insertions, 44. per line; and the card "), lateral movement of the bracket or plate 85 tons would be nearer the strain required to Each line consists of 10 words, the first line counting as

being prevented by forming it with a flat surface, and dislodge a half-welded link. Again: why not ask two. Wood-cuts are charged at the same rate as type for fitting it against the bend of the carding engine, or if the Royal Charter was brought up within the the space occupied,

by a steady pin or other contrivance. Patent cop. breakers that parted her cables? Judging from the Special Arrangements for larger or Serial Advertisements pleted. evidence upon Captain . Taylor's seamanship, he

To ensure insertion, Advertisements must reach the Office 1093. A. JUMELAIS. "An apparatus yielding brought the ship up in fair water; if so, did she by 5 o'clock on Thursday evening each week. None can be received after that time for the ensuing number

illimited power, so called • French movement." drift from her first position to where she parted ?

Dated May 2, 1859. If she did not drag her anchors, why ease them with

This apparatus consists of a series of tubes tightly the screw? and if she did drag until her anchors Patents for Inventions. connected with each other, each tube containing held in the rocky bottom, which caused the breakers

helix of ordinary form which actuates a shaft projectwhich parted her cables, why not extract this, if ABRIDGED SPECIFICATIONS OF PATENTS pulley. The issuing out of the said Shaft from the

ing, from the soid tube, and operating an external possible, by evidence, so that no shadow may be thrown over anchors of one model or another. THE abridged Specifications of Patents given below are

tube is to take place without any intrusion of the I am, Gentlemen, a much obliged

classified, according to the subjects to which the respective air into the interior of the tube, that is to say, with

SUBSCRIBER. nventions refer, in the following table. By the system of out any leakage, which can easily be obtained by a A correspondent writes: "The sad destruction of order of the specifications is preserved, and combined with by a double-piston sucking pump, which actuates one

classification adopted, the numerical and chronological stuffing box-lid.' The permanent pressure is obtained this fine ship (the Royal Charter), and the fearful all the advantages of a division into classes. It should be

end of the connected tubes. Patent abandoned. loss of property—and, above all, of life-attending understood that these abridgements are prepared exclu

1094. J. FERGUSON and J. McGAVENY. "Imthat and the numerous other shipwrecks that yearly sively for this

Magazine from official copies supplied by the occur, may well lead every one to exert himself to Government, and are therefore the property of the proprie- provements in fasteners for shutters and for similar devise means of preventing them.

Your corre

tors of this Magazine. Other papers are hereby warned not uses.” Dated May 2, 1859.

to produce them without acknowledgement: spondent, Mr. Bendelow, who suggests a method of

The ordinary fastening bolt is here modified so as

to become locked by a catch when pushed home into a relieving the strain on cables by means of pulleys, Srzam Excines, &c.,

1122, 1166. does not, perhaps, remember that the catenary curve BOILERS AND THEIR FURNACES, &c., 1119.

socket. Patent abandoned. of the cable, and the imperfect resistance which the ROADS AND VEHICLES, including railway plant and car- 1095. W. BAYLIS.“ Improvements in the manu. ship opposes to the wave force, do all that can be

riages, saddlery and harness, &c. None.

facture of iron hurdles and fencing.” Dated May 9,

1859. done at that end of the cable. But at the anchor Suips AND Boats, including their fittings, 1125. end there is an unyielding resistance, and when the

CULTIVATION OF THE SOIL, including agricultural and hor- The patentee claims so forming the iron for fence anchor does not itself drag or break, the parting of Food AND BEVERAGES, including apparatus for preparing hammering or pressing, that it shall partially clip the

ticultural implements and machines, 1129.

rails, either rolling, swaging, or subsequently by the cable often takes place near it. I believe that the

food for men and animals, 1445. true remedy consists in increasing the strength of prerous Faurios, including machinery for treating fibres, vent their having any lateral motion. Also the

intermediate hurdle or fence standard, so as to preboth anchors an l chains; and now that steel is so much more cheaply and easily made, it is incon- BUILDINGS AND BUILDING MATERIALS, including sewers, manner of shouldering and forming projections at the ceivable that, with the interests at stake, shipowners

drain-pipes, brick and tile machines, &c., 1094, 1095, ends of hurdles or fence rails where they are united to should not take advantage of a material whose Louting, HEATING, AND VENTILATING, 1098, 1130, 1140.

1097, 1126.

the end standards; likewise the mode of uniting cohesive strength is nearly double that of even the

hurdles and fencing together. Patent completed. FURNITURE AND APPAREL, including household utensils, best iron. Iron ranges in cohesive strength between

1096. R. A. BROOM AN. “ Improvements in, and time-keepers, jewellery, musical instruments, &c., 1111, in connection with, electro-magnetic engines." (1 25 and 30, and steel between 56 and 59, tons per 1113, 1136. square inch of section."

Myrats, including apparatus for their manufacture, 1103, communication.) Dated May 2, 1859.
1115, 1117, 1120, 1128.

The object here is su to construct electro-magnetie The following letter merits a place here:

C'HEMISTRY AND PHOTOGRAPHY, 1099, 1101, 1107, 1189. engines, and apparatus connected therewith, that the GENTLEMEN, -Having some time ago experi- ELECTRICAL APParatus, None.

attractive and

repulsive forces of electro-magnets may mented during two rough trips at sea, an account of Warfare, 11 32.

be utilised and caused to act simultaneously upon the the results may perhaps deserve a spare corner in LETTER PRESS PRINTINO, &c, 1100, 1110.

same part or parts of the engine-that the reeiproval your valuable publication. The first trip I lay as my MISCELLANEOUS, 1089, 1051, 1093, 1094, 1096, 1102, 1103, action of fixed and moveable magnets may be made fellow.passengers did, with my head towards the stern 1104, 1105, 1106, 1108, 1109, 1112, 1114, 1116, 1118, 1123, available in producing motion that the electroand my feet towards the engine-room (the centre of 1127, 1131, 1134, 1135, 1137, 1138.

magnets employed may be rendered active both by motion), and on my right side. The result was very

external and internal electrical actions—that the much like that of a stomach pump. On the next trip 1039. J. BULL." Improvements in apparatus used action of the electric current or currents may be I lay on my left side, with my head towards the for securing bales of cotton and other substances.” practically continuous and that the maximum magengine-room and feet towards the stern. The result Dated April 30, 1859.

netic forces may be made available for the production was, that I was the only one in the cabin unaffected This consists in causing the ends of a suitable length of power. Patent completed. with sickness; my fellow-passengers lying the con- of strip metal or of hoop iron to be bent into hooks, 1097. J. BASFORD." An improvement in the aptrary way. The rationale of these results is clear. and to employ therewith a plate of metal with a rec- paratus used when expressing clay or brick earth The esophagus or entrance to the stomach is on the tangular or suitable opening through it, so that when through dies." Dated May 2, 1860. left side, the pylorus or eduction on the right. When a bale of cotton has by pressure been brought to the This consists in forming the bridge which carrie

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