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Germany by the morning mails, whereas now, as I

work up and down, whilst it is held back into its learn from the Post-office authorities here-Florence THE LE BEUF HYDRAULIC LIFT.

place above and below by the fitting ends of the -only a portion of the correspondence, sent in a specia bag, made up in Italy, goes on by the Wallrangement of hydraulic lit, constructed by constantly though with® diminishing offect abovo the North will arrive in Florence at 9 23 a.m., and the well-known Maison Flaud, after designs by as the piston and platform rise. The advantage will, therefore, easily be distributed before noon,

M. Le Bæuf, a French mechanic of considerable of the system consists in dispensing with the long thus allowing time to answer them by the evening talent. The continuous ram is dispensed with in ram or plunger, and limiting tho length of the post. This seems a perfectly satisfactory arrange- this machine, the mode of application of hydraulic column to a very short excess over the length ment, so far as it goes, reducing the time of transit pressure being similar to that of pneumatic pressure travelled by the platform. The disadvantage to for letters between Florence and London to forty- under the old pneumatic railway system, though which it is subject is the necessity for employing eight hours. But it will still be virtually sixty hours the mode of closing the slit is different from that a tube with a continuous slit to be opened and from London to Florence, since the morning mail which was commonly employed in the railway closed at each passage of the piston, an arrangefrom the former city will be the one delivered hero tube. The column consists in a jointed cast-iron ment which has heretofore invariably defeated the in the morning. What we still want is a morning tube bored throughout, and having a narrow slit object of the inventor wherever an attempt has letters posted at night in London. The accounts faced with steel ribs extending for its entire length. been made to employ it. One of these machinosfrom the Mont Cenis Railway continue to be favour- Within this an elongated piston with a water-tight a small one—was exhibited at Paris last year, and able. The public seems getting over its groundless working joint at each end traverses, carrying with worked exceedingly well without any apparent fears, and the trains fill well. One day last week it the table of the lift to which it is attached by leakage. The system is worthy of trial the two morning trains from Susa conveyed eighty- a T-shaped lug projecting through the slit. The larger scale. The hydrostatic pressure was obtained eight pas,' ?'"*1.3. In a very few days the goods "fermeturo" employed consists of a thin ribbon by means of Giffard's injector, the most simple, traffic is to open. The trains have hitherto kept of steel of segmental section, so as when closed though perhaps not the most economical method their time admirably. The railway people are by the pressure of the water itself to complete the of obtaining it if employed in conjunction with an sanguine of soon ruuving the remaining diligences internal circular form of the pipe. On the stem atmospheric accumulator. There can scarcely be off the road. This is probable, for, although there of the T-connecting piece within the tube, and I will doubtiess be to the end of time a few old ladies between its side and the body of the piston--which hydraulic power to ordinary lifts. There remains,

more direct application than the above of resolutely against mountain railways, it is incredible here consists simply of a rod of much smaller dia- ' however, the exception which we have already that anybody who has once gone by the Fell Rail-' meter than the tube—there is an enlargement to taken to the practical working of the valve closing way will ever revert to the tedious lumbering dili- provide for a vertical slot through which the steel the slit, and we have not yet sufficient data to show gence under the most unistaken idea that it is a safe closing ribbon passes, and is thus drawn in from that it will here be more successful than have been mode of conveyance.

the slit at the right point to allow the T-piece to previous attempts embodying the same principle.

on &

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Miles.

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77

THE IRONCLAD FLEET.

“8. It is to be borne in mind also that while appear to be so numerous that it is surprising it VE following is a copy of Admiral Warden's the engines of the “Achilles' dovelope only about has not been adopted for deep sea cables long ago. 1867:

· Bellerophon,' the 'Lord Warden,' and the Lord oxydized in the second year after it was laid, that

Clyde' were constructed to develope about 6,000- the expolition sent to raise it at the Newfoundland “REAR-ADMIRAL WARDEN TO THE SECRETARY OF horse power to drive 4,000 tons. " It is a result, end could not obtain any long length of it, in conTHE ADMIRALTY.

I think, calculated to give rise to very serious re- sequence of it breaking through loss of strength "The · Minotaur,' at Lisbon, Dec. 3, 1867. flection.

by oxydation. The iron wires also in the present "Sir, I have to request that you will ac “9. The diagram, illustrating the above trial, cables, though galvanized, and also to a certain quaint my Lords Commissioners of the Admiralty will be forwarded, at an early opportunity, together extent protected from the salt water by the homp that the cruise of the squadron under my with the details of it, for their Lordships' informa- covering, will rust in the course of time, and in orders from the 20th of November to the 2nd inst. tion.

rusting will also destroy the hemp immediately was, on the whole, a satisfactory one, and the time “10. Friday, the 29th ult., was devoted to target around it, just as a rusty nail does the wood in well employed.

practice, and I regret to add that it was attended which it has been driven. Hemp alone, on the “ 2. Previously to the departure of the Royal by three accidents—one in the · Achilles' by the other hand, will remain good for a great number of Oak' for England, on the 23rd ult., I availed my- premature explosion of a cartridge in loading one years, as in the case of the Royal George,” which self of every opportunity of practising evolutions of the guns, by which one of the gun's crew un- remained sunk off Portsmouth for 50 years, in three columns. On the afternoon of one of fortunately lost his arm; the second in the 'Lord and of the “ Republique which remained sunk these days the wind freshened so much as to render Clyde,' by the bursting of a shell in one of the off Brest for 70 years. Some samples of the hemp such exercise further inexpedient; and accord- | 7-inch 64 ton guns, by which a piece of the cable of the Royal George " were exbibited at the ingly I put the squadron under sail on the star- muzzle was blown off, without, however, any meeting, and were in a remarkably good state of board tack, and made the signal to chase to wind- further accident to any one; and the third, in preservation. Under Capt. Rowett's process the ward,' and 'optional disconnect screws.'

the Warrior,' where an 8-inch gun of the main- hemp is steeped in a preserving solution, which has “3. The trial lasted from noon to 4 p.m., deck battery, in firing the first round, drew the been found to render it safe from the attacks of the during which time this ship, with her screw dis- pivoting bolt.

teredos and worms, or the attachment of marino connected, was going from four to five and six "11. After this the weather began to break up, plants. The hempen cables exhibited to the meetknots, the screw revolving from ten to sixteen and I returned here on the 2nd inst., as stated in ing were flexible and easy to handle ; and being times in a minute ; the Warrior's' screw was another letter, No. 223.

of very light specific gravity are, comparatively raised.

"12. The remainder of the time not thus par- with their strength, much stronger than a mixed " 4. When the recall was made at four o'clock ticularly specified was occupied in performing evolu- iron and hemp cable. An iron wire will break with the following was the extraordinary result: tions by subdivisions and other necessary exercises, three miles of its own length in the sea, and mixed

comprising experiments with the 12-ton gun as with hemp, as in the Atlantic cable, it will beareleven The Achilles beat the Minotaur . . 9,774 or 41 opportunity offered.

miles of its own length in the sea, but alone, it is Lord Warden. 9,610 or 43

"I have, &c.,

stated in the Blue Book Report on Telegraphs, 1861, Bellerophon 9,268 or 45

" FREDERICK WARDEN, Rear-Admiral that a hempen cable will bear nearly 20 miles of its Prince Consort 8,940 or 43

Commanding."

own length in the sea. Thus there is here ample Royal Oak. 5,513 or 2) Warrior 2,527 or 11

We take the subjoined very interesting account strength to bridge any submarine valloy over " The"Lord Clyde is not taken into account, composing the Channel fleet, under the command regard to cost, we may observe that the Atlantic

of the more recent trials made with the ships which it may happen to be suspended. With as she was thrown to leeward by having to pass of Rear-Admirals Warden and Ryder, from the cable cost £300 per mile, whilst Capt. Rowett this ship, and was placed at a considerable disad- "Times”: -The fleet left Portland Roads under

tates that his hempen cable would only cost £130 vantage. “The Pallas' was ' nowhere.'

steam on June 4, and during the cruise made bani per mile. Capt. Rowett, however, comes before "To put the result in another form :

fine weather, with the exception of fogs and the public under great disadvantages, not having

summer mists, and, consequently, no opportunity a single instance of the practical adoption of his Achilles gained to windward of Mino

occurred for trying the seaworthiness of the ships, system to point to during the ten years his patent

or what their behaviour would be in a gale or taur 9,774 or 43

That there are merits in the principle Warrior

7,147 or 31
heavy seaway.

none will deny, and we hope the inventor will have

On June 20 a trial of sailing was Royal Oak

his cable competitively tested against other 1,449

made with the following conditions and results :Lord Warden

765

Wind, N.W.; force, 4 to 5; signal made at 11 a.m., cables, when, if he proves in practice all ho Prince Consort

634

"Chase to windward.” A 1.25 p.m. the fleet lays down in theory, he will certainly effect a Bellerophon

596

tacked to signal from the flagship, and at 2.50 p.m. revolution in the manufacture of submarine tele" The Lord Clyde' löst to leeward 436 yards, discontinued the chase. From 11 a.m. to 2.50 p.m. graph cables. stated, as before, to be accidental. The Pallas' the “Warrior”.gained on “Minotaur ” 6,139yds.; was nowhere' from inability to do more.

" Bellorophon, 11,432yds. ; Royal Oak," THE LONDON ASSOCIATION OF FOREMEN “ Diagrams are enclosed which will verify these

5,641 yds. * Defence,
3,800yds. i Achilles,

ENGINEERS.
figures.
4,695yds.; "Prince Consort,” 5,737yds.; "Pallas,"

THE thirty-fourth half-yearly meeting of mem

bers of this Institution took place on Saturday, short space of four hours, beating a very similar was made, lasting from 10 a.m. to 5.15 p.m.; wind, ship, as much as five miles dead to windward ; and east; force, 5 to 6; signal, “Chase E.S.E.” In the 4th inst., at the George Hotel, Aldermanbury, beating some of the latest constructed ships almost this trial the "Warrior,” still retaining her un- City. The chair was occupied by the president, to the same extent; and this, it is to be remembered, conquerable character, gained on " Minotaur," Mr. Joseph Newton, of Her Majesty's Mint, and by a ship which, but one year ago, under a different 15,549yds.; " Bellerophon," 19,004yds.; “Royal the attendance was large. The sitting was mainly system of masting, had great difficulty in getting Oak,"10,647yds. ; Defence," 7,159yds. devoted to business connected with the Society, from one tack to the other by tacking, and had 17,028yds.; "Pallas," 19,928yds. On June 27 auditors, Messrs. J. Irvine and J. Humes, presented

“ Prince Consort," and after the election of several new associates the “ It is impossible, I think, to advance anything the fleet left the rendezvous, on return to Plymouth their report and the balance sheet for the half-year stronger in favour of giving the Minotaur

Sound and Spithead, with the wind foul from the just ended. From those documents we find that three masts instead of five, whenever concurrent eastward. On July 3, the wind continuing foul, the number of ordinary members (foremen of encircumstancos admit of the transformation being the “Warrior” took the “ Royal Oak

in tow, gineers) at present on the books of the Association made.

and the “Achilles" took the “Prince Consort, is precisely one hundred, and that of honorary “6. On November 26, the weather being favour- the coals of the towed ships running low, the fleet members (employers of engineering labour and

Tho able, a full-speed trial, under steam, was made from having been steaming since 1 p.m. on the 1st inst. other scientific gentlemen), fifty-three. 8 a.m. to 4 p.m.

The patent log of the Mino- At noon on the 4th inst., the “Royal Oak” and general fund invested or in the treasurer's hands taur,' the sternmost ship but one, showed 90 miles, "Prince Consort” were cast off from the "War- amounts to £431 2s. The superannuation fund, and that of the Helicon,' which was the head- rior” and “ Achillos,” and on the 5th, at 5 p.m., projected for the partial support of decayed foromost ship, showed 140 miles ; and the following the two divisions forming the fleet parted com- men, has reached to £903 18s., whilst the fund for was the result, viz. :

pany, the port division, under the command of the assistance of the widows and orphans of de

Yards. Miles. Read-Admiral Ryder, steaming in for Plymouth ceased members stands at £12 4s. only, and is far The Achilles gained on the

Sound, and the main or starboard division, under too small for its purpose. After some discussion, Lord Clyde.

26,822 or 18% the command of Rear-Admiral F. Warden, C.B., both the report and balance-sheet were unaniOn the Bellerophon

20,422 or 104

proceeding up Channel to Spithead, where it mously accepted. Messrs. Salmon, Smith, and On the Minotaur

20,000 or 10 arrived at 3 p.m. on the 6th inst. During the Vinicombe were subsequently chosen as committeeOn the Pallas

17,411 or 83 cruise no other trials were made than those de- men in lieu of three others, who retired by rotaOn the Prince Consort 16,669 or 81 scribed.

tion, and Mr. Bunt was appointed co-ánditor with On the Warrior. 13,744 or 63

Mr. Irvine for the current half-year. The chairOn the Lord Warden 9,561 or 41

man finally appealed to the members to exert The Achilles lost on the Heli

OCEAN TELEGRAPHY.

themselves in the production of papers for the “7. Here, again, we have the 'Achilles, one of the A MEETING of gentlemen interested in ocean monthly meetings of the coming session, and ex

telegraphs took place yesterday week, at the pressed some dissatisfaction as to the paucity of first ironclad ships built after the Warrior' and City Terminus Hotel, Cannon-street, over which volunteers in that direction during the half-year the Black Prince, distancing in a of Mr. Kendall, M.P. for East Cornwall, presidod. which had just elapsed. As the transactions of the 100 miles, occupying eight hours, some of the The specific object of the meeting was to hear the Association were now regularly printed, it was the latest constructed ships and they containing views of Capt. William Rowett, R.Ñ., with reference more desirable that abundant material should be generally the most recent improvements which to the light hempen cables, patented by him in forthcoming. Aftor announcing that Mr. G. F: have taken place in condensers, &c.), in a ery 1858. In carrying this invention out, Capt. Roivett Ansell, an honorary member of the Society, would, remarkable manner; and even holding her own, leaves the conductor and insulation of the cable to on the 1st of August next, read a paper and otherwithin a couple of miles, with a very fast electricians, but uses a simple hemp covering for wiso explain and illustrato certain new processes despatch vessel, in weather very favourable to the the external part of the cable. The advantages for the manufacture of sugar, the chairman closed latter.

of this system, as pointed out by Capt. Rowett, the proceedings.

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THE MONITOR “DE TYGRE," FOR THE

FOR THE DUTCH
GOVERNMEN T.

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be handed over to the King of Holland's inspectors. between the outer and inner bottoms shall be THE MONITOR " DE TYGRE."

The first of these vessels is the “De Tygre,” filled with water when preparing for action, so as establishmei its—the Govan-yard and Lance- illustrate from drawings kindly furnished to us by will be about 9ft. 6in., thus leaving only about field Factory—are

a present almost exclusively Messrs. Napier, who were themselves the designers 2ft. of the topsides exposed to the enemy. Under occupied in the coi

estruction of ironclads for our of both vessels. The principal dimensions of the ordinary circumstances, however, the draught will own and the Dutch Governments. For the former "De Tygre” are :—Length, 187ft.; breadth, 44ft.; be 12in. less than this, thereby adding to the comthey have at presen

it on the stocks two of the class depth moulded, 11ft. 6in.; tonnage (builder's fort and seaworthiness of the ship. The armourto which the Invin, vible" belongs, from Mr. Reed's measurement), 1,613 tons. This vessel is built in plating on sides of vessel is 5 in. thick, having a designs, whilst two 1 waret ships for the Dutch Go- compartments with water-tight doors, and has a backing of teak 10in. thick, and an iron inner vernment were launc bed lately and are now about to double bottom-it being intended that the space skin supported by strong iron girders and frames.

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AYLOR The turret, on Captain Coles's plan, is protected (two runs, was 7-946 knots an hour. The turret end view looking on the firebox of the engine, showwith armour 12in. thick at the ports, and sin. was found to revolve with facility, completing a ing the position of the steam regulators, the reversing thick in rear of the guns, supported by teak back- revolution under steam power in 45 seconds. handles, and the wheel for throwing the outside ing 12in. thick, with an iron inner skin and

cylinders out of gear. Fig. 4 is a vertical section frames similar to vessel's sides. The armament

through the smokebox and cylinders. For the sake will consist of two 300lb. 121-ton Armstrong guns,

of perspicuity, we have omitted all those parts of an

ordinary locomotive engine which do not relate to having the most improved iron slides and carri IMPROVED LOCOMOTIVE ENGINE.

Mr. Kendall's improvements or in any way tend to ages, with apparatus for lifting the shot to the

o, a are the two outside muzzle of the gun whon loading. The turret is Then accompanying engraving shows a locomotive illustrate their nature.

engine which embodies improvements recently cylinders, and b is the inside cylinder of larger difitted with steam gear, in addition to a winch for patented by Mr. W. Kendall, of Percy Main, North- mensions; C is a single-cranked axle attached to the turning it by hand, and the guns have a clear umberland. The object of Mr. Kendall's invention two driving wheels D D. This axle takes the end range of fire all round, with exception only of is to increase the facile ties for starting locomotive of the connecting rod E, whereby it receives its three degrees on each side of the middle. line engines, and also to give an available extra power motion from the piston of the cylinder b. The pistons when firing astern. Forward of the turret there is to ascend inclines when required. For this purpose of the small cylinders a a are attached by the piston ample accommodation for the crew; while abast the he uses two outside cylinders working on cranks on rods to guide blocks F F. (guided in the usual way). ongine space very superior accommodation is pro- in the centre and one inside cylinder working on the the other ends of which links work in slot links H H;

the end of the driving axle which has a single crank The guide blocks F F are attached to links G G, the vided for the officers, and there is besides abundance single crank above mentioned. The reversing gear these links H H, being supported by pin joints in of space for store rooms, pantries, baths, water- is so arranged that all three cylinders may be em- the standards H' H' and the links or connecting rods closets, &c. Special attention has been paid to the ployed for starting and for ascending inclines, and G G, are caused to move up and down on the links ventilation and lighting of the vessel, so that eren also for any emergency which may arise requiring H H by two rollers I I attached to racks K K, which in bad weather it is not anticipated the slightest in- extra power, and at other times when running on å racks are caused to move up and down by two sectors convenience will be experienced. The steering level road or on favorable gradients the steam can L L, fixed upon a shaft M; this shaft with its sectors gear is carefully disposed to avoid risk of injury, be shut off from the outside cylinders, so that the receives motion from a lever N fixed upon the shaft and is worked by Skinner's patent vertical appa- locomotive can be worked by the inside cylinder M, the lever N is connected by a pin joint to the nut ratus, while Gisborne's patent mechanical telegraph alone, whereby much of the resistance at present o, and the nut 0 and lever N'are actuated by means supplies the means of communication between the due from the blast pipe is saved, and the motive of the wheel P placed at a convenient distance from

So far, then, as the two outside bridge, steering-wheels, turret, engine-room, &c. power being concentrated in the centre of the engine the engineman.

increased stability is obtained. By regulating the cylinders a a are concerned they can either be out The engines—also by Messrs. Napier--are 140 lap of the valve small quantities of steam can be of gear, or, by turning the screw O in the proper nominal horse power, collectively; thero boing two admitted to the cylinder or cylinders which are direction, the links G can be lowered down the slot pairs of cylinders of 30in. diameter, and ift. 6in. thrown out of work so as to keep it or them lubri- links HH, when the pistons will travel backwards and stroke, connected with propellers 7ft. diameter, cated when not required to draw the lond. It will forwards in the cylinders and will communicate their and steam is supplied by two boilers having a work- be seen that in having the two outside cylinders motion to the two connecting rods Q Q, which are ing pressure of 301b. per square inch. It may be reversed and thrown out of work by separate gear connected at one end to the slot links #H, and at added that, from an experimental trip recently from that used to reverse and throw out of gear the other end are attached to the cranks R R on the made in somewhat unfavourable weather, this ves

the centre cylinder, all three cylinders or only one wheels SS, which wheels are coupled by the consel is likely to prove a good soa-boat, and to attain can be used at will, or if desired the two outside necting rods T T to the wheels D D. a fair rate of speed. cylinders may be used alone.

It will be seen that by this arrangement in starting The “ De Tygre " was tested at the measured elevation of a locomotive engine wherein the method actio In our engraving, fig. 1 shows that part of the the engine or in mounting heavy gradients, the united

of all three cylinders can be employed, and mile on the Firth of Clyde yesterday week, and in of connecting and disconnecting the motion of the when running on favorable gradients the outside four runs displayed an average speed of 9-945 two outside cylinders of the driving wheels is shown. cylinders can be put out of gear and the centre knots an hour with both her boilers in operation. Fig. 2 is a sectional plan of the same showing the cyl der alone employed for propulsion. The slides With only one boiler, her speed, on the average of arrangement of the threo cylinders. Fig. 3 is an of the two outside cylinders are worked by the ec

centrics U U and the slot link V, a small shaft W of 1,300,000 persons have visited it. It was in which was so arranged as to form a portion of one connecting the two spindles X and Y together. tended (vide Report of Parliament for 1859) to make complete design for the appropriation of the whole Should it be desirable for the two outside cylinders this museum an historical and educational institu- site of Burlington House and Gardens for various a a to work on cranks which are not in the line with tion for the benefit and instruction of the skilled public buildings. This plan was, however, susone another, each slide would have to be worked by workmen employed in the various factories of the pended or altogether abandoned on the change of is worked by the eccentrics 2 Z. 1 is a diaphragm kingdom, a class which largely contributes to the Government in that year. In 1860, Fife House separating the slide chest of the large cylinder from surplus fund of the Patent Office in fees paid upon and Gardens appeared to the Commissioners to that of the small cylinder ; 5 is a regulator admitting patents granted for their valuable inventions. present a convenient sito, meeting all the necessary steam through the pipe 3 to the steam chest of the Exact models of machinery in subjects and series requirements. The proposal that an assignment large cylinder; 4 is a regulator admitting steam of subjects, showing the progressive steps of im- or purchase of this site should be made was through the pipes 2 2 2 into the steam chests of the provement in the machines for each branch of favourably considered by the Treasury; but it small cylinders.

manufacture, were to be exhibited ; for example, was found that until the question of the Thames The outside cylinders may thus be connected it was intended to show in series of exact models Embankment and the roads of access to the main direct to cranks either on the wheels Por S, and each important invention and improvements in river-side road should have been settled by Parcylinder alone, or in conjunction with the two outside steam propellers from the first engine that drove liament, no appropriation of that site for building cylinders, or the two outside cylinders may be a boat of 2 tons burthen to the gigantic machinery purposes could be made. This difficulty was (vide allowed to operate by themselves solely by the ad- of the present day, propelling the first-rate ship of Report of the Treasury for that year, and Report justment of the regulator handles 4 and 5, but in the war or commerce. The original small experi- to Parliament for 1865) removed in 1862, and latter case the piston slides of all the cylinders mental engine that drove the boat of 2 tons burden, there is, therefore, on the face of the matter, no would be working with their full motion. 6 is a above referred to, was already in the museum, reason for the continued neglect to provide a site reversing handle attached by means of a rod to lever numbered one in the series of models of propellers. on that spot. The library remains in its re7, the weigh bar 8, and the lever 9, for reversing the It was further stated in the report), that the Com- stricted premises, which do not provide for expanslides of the small cylinders; 10 is another reversing missioners were in possession of a large number of sion. lever connected to the lever 11, hollow shaft 12, and valuable models, remaining in their cases, for the lever 13, for reversing the slide of the large cylinder. reason that room could not be found for exhibition a Week,” April 11), as one of the "especially dis

The museum has been recently described ("Once It will be apparent, therefore, that the action of the small and large cylinders may be regulated by the in tho very small space assigned to them in the creditable » public institutions in London means above described, and without disconnecting museum at Kensington; they were also, and for : There, almost invisible, unknown and unthe outside cylinders, but by allowing them to work the same reason, obliged to postpone the acceptance honoured, lie the germs of inventions that have direct on to cranks on the wheels D and S, since by of many valuable models offered as gifts by manu- made us great as a nation,—the steam-engine, placing the starting handle 6 in a vertical position facturers and inventors.

the screw-propeller, the steam-hammer, the spinthe smaller cylinder slides will receive no motion, The want of sufficient space either for the ning-jenny, and a host of minor trophies, piled up and they will therefore cease to be actuated by the library or for the museum has proved to be a and huddled together, like the lumber of a broker's steam. On the handle 10 being placed in a vertical chronic complaint. position the steam will be shut off from the large a select committee of the House of Commons re- hold them properly.

As regards the library, a shop, in a room not one-tenth part large enough to cylinder, and the required motion given to the small ported, July 19, 1864, that the place used for the national mechanical exhibition that we possess a

Why is the only cylinders by the lever 6 being put either into forward inspection of specifications and drawings was little sham and a shame? or backward gear.

It cannot be for want of The exhaust steam from the large cylinder goes better than a dark passage in which there was funds, for the Patent Office is a money-making through the passage 14 into the blast pipe 15. The barely standing room. The library the Committee department, and can well afford to establish a exhaust steam from the two smaller cylinders passes found to be one of great value and utility, but its repository for the machines and models that it through pipes 16 16, the passage 17, and also into the utility was seriously impaired by its crowded state has begged and borrowed, more worthy the name of blast pipe 15. 18 is a ball valve worked by a spindle and the want of sufficient attendants; the books a museum than the miserable shed in which those 19 attached to a rod and handle so situated as to be were stowed away in a number of small rooms, or objects are at present stored. If a creditable convenient for the engineman to actuate, whereby the rather closets, some on floors, some on tables, some place of exhibition were provided, there would be exhaust steam from the small cylinders may be either in passages and some on shelves; while the store hopes of seeing by-and-by an accumulation of taken through the passage 17 into the blast pipe 15, rooms were so overloaded that the floors had al- mechanical treasures as rich as the magnificent passage 17 ; the exhaust from the outside cylinders ready sunk, and the surveyor of tho Board of one of art treasures now existing. But who will may be directed downwards and passed through the Works refused to allow them to be loaded any more, give their valuables to be hidden beneath a bushel, pipe 20 in front of the engine without entering the lest they should break down. At length, at a cost or lend their relics to be bur ed?” It remains blast pipe 15. In this manner, when running with of £15,000, new rooms were built in the upper por- only to state that the surplus income of the Patent the three cylinders, the exhaust steam from the whole tion of the building, which the Patent Office was Office for the year 1866 was upwards of £45,000. three may be made available for the purpose of allowed to use for the various purposes set forth in creating a draught, or the exhaust steam from the the Act of 1852, and these were opened in April, centre cylinder alone may be so used when thereby | 1867. The arrangements for convenience and sufficient draught is secured. When the outside assistance of readers made by the officers of the cylinders are arranged to work direct on to cranks, Commissioners of Patents were and are of the

MANCHESTER BOILER ASSOCIATION and the pistons are always in motion when the engine highest order of excellence; and the library is is moving whether actuated by steam or not, Mr. increasingly resorted to. But the additional rooms

HE last ordinary monthly meeting of the execueither by the slides or by other means to lubricate were far too small for the purpose. Barely suf- the offices, 41, Corporation-street, Manchester, on the pistons and prevent injury to the cylinders. We ficient for the accommodation of the books which Tuesday, June 30, William Fairbairn, Esq., F.R.S., may add that one of these engines is in course were in the library at the time they were erected, &c., president, in the chair, when Mr. L. E. of erection at the locomotive works of the Blyth and they contained no provision for the extension re- Fletcher, chief engineer, presented his report, of Tyne Railway at Percy Main. When completed, we quired to meet the growth of the collection by which the following is an abstract:-During the hope to place the results of its working before our purchases and by presentations. The Report to past month 318 visits of inspection have been readers.

Parliament for 1865 very distinctly points out that made, and 677 boilers examined, 397 externally,

the building at present devoted to the purposes of | 15 internally, 6 in the flues, and 259 entirely, THE LIBRARY AND MUSEUM OF THE made to be, suitable for the requirements of the pressure. In these boilers 84 defects were dis

the Patent Office, is not now, nor can it ever be while in addition 4 have been tested by hydraulic COMMISSIONERS OF PATENTS.*

office. In corroboration of which statement it covered, but none of them proved dangerous. connection with the Office of the Commis- may be mentioned that the new library rooms Furnaces out of shape, 5; fractures, 19 ; blistered sioners of Patents for inventions there exist a

opened April, 1867, though they are as spacious as plates, 6; internal corrosion, 9; external corrosion, Free Public Library in Southampton-buildings,

it was possible to make them in so small a building, 12; internal grooving, 15; external grooving, 3; and a Museum at South Kensington. The library are completely filled with books, and there is no

water gauges out of order, 1 ; safety valves out was founded March, 1855, by the loan of Mr. Wood- space in which new shelves can be placed for of order, 1; pressure gauges out of order, 7; croft's private collection of scientific and other the additions which the library continually re- without feed back pressure valves, 5; cases of

ceives. works, afterwards purchased by the Government.

deficiency of water, 1. During the past month It is open daily, and is resorted to by about Besides the undue cramping of both the library advantage was taken of the stoppage during 16,000 readers annually, of whom the great majority and the museum, those who have occasion to make Whit-week for making as many internal and flue are inventors, barristers, solicitors, patent agents, practical and beneficial use of the two collections examinations as possible. The whole of the staff and skilled artizans. The library is of the most have reason to complain of their separation—tho were in active operation, the office assistants tarnvaluable character, comprising upwards of 13,000 one being within the City of London and the other ing out to do duty as inspectors. The result of distinct works (probably about 50,000 volumes) in at South Kensington. The Commissioners of Pa- this is shown in the very high number of addition to the publications of the Commissioners tents have from time to time called attention to entire ” examinations given above. Notwithof Patents. It is the only library within the this check imposed upon their more frequent use. standing this, however, it is gratifying to be United Kingdom in which the public have access To the end of 1865 there were 42,208 specifica- able to report that no dangerous defects were disnot only to the records of the patents and inventions deposited, all of which could be consulted at covered. tions of this country, but also to official and other the offices in Southampton-buildings; but should Four explosions have occurred during the past documents relating to inventions in foreign an examination of any machine or model described month, from which five persons have been killed countries, and this without payment of any fee. by those specifications be requisite, the searcher and six others injured. The scene of the catas

The museum was established in June, 1857, in must needs turn his back upon the spocifications trophe has been visited in each case by an officer a portion of the buildings of the South Kensington and go three miles to see the machine. The of this Association, and full particulars obtained. Museum, and consists almost entirely of machines, appeals which have been made for the erection of Not one of the boilers in question was under the models, &c., which have been either lent or pre- suitable buildings have always kept in view the inspection of this Association. The following is sented. It was opened originally with a collection desirability, not to say the necessity, of placing a statement of explosions from May 23, 1868, to of machines and models, the property of Mr. Wood- the library and museum under one roof.

June 26, 1868, inclusive :- May 28, multiflued croft, and to which additions have been made from In 1859, the Lords of the Treusury and the marine, internally-fired,—2 killed. June 8, plain time to time ; and such is its interest that upwards Chief Commissioner of Works approved of a site cylindrical, egg-ended, externally fired—2 killed.

lying at the northern extremity of the gardens of June 20, single fluo, or Cornish, internally fired Notanda of the Public Museums and Free Libraries Burlington House, and thereupon plans and esti- 1 killed, 6 injured. 'June 22, two-fue Lancashire, Association,

mates were prepared for the proposed building, internally fired. Total, 11-5 killed, 6 injured.

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