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industrial biography-第81部分

小说: industrial biography 字数: 每页4000字

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over a series of years; and were conducted at a cost of several

thousand pounds。  The first experiments were made with vessels of

wood; but they eventually led to the construction of iron vessels

upon a large scale and on an entirely new principle of construction;

with angle iron ribs and wrought…iron sheathing plates。  The results

proved most valuable; and had the effect of specially directing the

attention of naval engineers to the employment of iron in ship

building。



Mr。 Fairbairn himself fully recognised the value of the experiments;

and proceeded to construct an iron vessel at his works at Manchester;

in 1831; which went to sea the same year。  Its success was such as to

induce him to begin iron shipbuilding on a large scale; at the same

time as the Messrs。 Laird did at Birkenhead; and in 1835; Mr。

Fairbairn established extensive works at Millwall; on the

Thames;afterwards occupied by Mr。 Scott Russell; in whose yard the

〃Great Eastern〃 steamship was erected; where in the course of some

fourteen years he built upwards of a hundred and twenty iron ships;

some of them above 2000 tons burden。  It was in fact the first great

iron shipbuilding yard in Britain; and led the way in a branch of

business which has since become of first…rate magnitude and

importance。  Mr。 Fairbairn was a most laborious experimenter in iron;

and investigated in great detail the subject of its strength; the

value of different kinds of riveted joints compared with the solid

plate; and the distribution of the material throughout the structure;

as well as the form of the vessel itself。  It would indeed be

difficult to over…estimate the value of his investigations on these

points in the earlier stages of this now highly important branch of

the national industry。



To facilitate the manufacture of his iron…sided ships; Mr。 Fairbairn;

about the year 1839; invented a machine for riveting boiler plates by

steam…power。  The usual method by which this process had before been

executed was by hand…hammers; worked by men placed at each side of

the plate to be riveted; acting simultaneously on both sides of the

bolt。  But this process was tedious and expensive; as well as clumsy

and imperfect; and some more rapid and precise method of fixing the

plates firmly together was urgently wanted。  Mr。 Fairbairn's machine

completely supplied the want。  By its means the rivet was driven into

its place; and firmly fastened there by a couple of strokes of a

hammer impelled by steam。  Aided by the Jacquard punching…machine of

Roberts; the riveting of plates of the largest size has thus become

one of the simplest operations in iron…manufacturing。



The thorough knowledge which Mr。 Fairbairn possessed of the strength

of wrought…iron in the form of the hollow beam (which a wrought…iron

ship really is) naturally led to his being consulted by the late

Robert Stephenson as to the structures by means of which it was

proposed to span the estuary of the Conway and the Straits of Menai;

and the result was the Conway and Britannia Tubular Bridges; the

history of which we have fully described elsewhere。*

 'footnote。。。

Lives of the Engineers; vol。 iii。 416…40。  See also An Account of the

Construction of the Britannia and Conway Tubular Bridges。  By William

Fairbairn; C。E。  1849。

 。。。'

There is no reason to doubt that by far the largest share of the

merit of working out the practical details of those structures; and

thus realizing Robert Stephenson's magnificent idea of the tubular

bridge; belongs to Mr。 Fairbairn。



In all matters connected with the qualities and strength of iron; he

came to be regarded as a first…rate authority; and his advice was

often sought and highly valued。  The elaborate experiments instituted

by him as to the strength of iron of all kinds have formed the

subject of various papers which he has read before the British

Association; the Royal Society; and the Literary and Philosophical

Society of Manchester。  His practical inquries as to the strength of

boilers have led to his being frequently called upon to investigate

the causes of boiler explosions; on which subject he has published

many elaborate reports。  The study of this subject led him to

elucidate the law according to which the density of steam varies

throughout an extensive range of pressures and atmospheres;in

singular confirmation of what had before been provisionally

calculated from the mechanical theory of heat。  His discovery of the

true method of preventing the tendency of tubes to collapse; by

dividing the flues of long boilers into short lengths by means of

stiffening rings; arising out of the same investigation; was one of

the valuable results of his minute study of the subject; and is

calculated to be of essential value in the manufacturing districts by

diminishing the chances of boiler explosions; and saving the

lamentable loss of life which has during the last twenty years been

occasioned by the malconstruction of boilers。  Among Mr。 Fairbairn's

most recent; inquiries are those conducted by him at the instance of

the British Government relative to the construction of iron…plated

ships; his report of which has not yet been made public; most

probably for weighty political reasons。



We might also refer to the practical improvements which Mr。 Fairbairn

has been instrumental in introducing in the construction of buildings

of various kinds by the use of iron。  He has himself erected numerous

iron structures; and pointed out the road which other manufacturers

have readily followed。  〃I am one of those;〃 said he; in his 'Lecture

on the Progress of Engineering;' 〃who have great faith in iron walls

and iron beams; and although I have both spoken and written much on

the subject; I cannot too forcibly recommend it to public attention。

It is now twenty years since I constructed an iron house; with the

machinery of a corn…mill; for Halil Pasha; then Seraskier of the

Turkish army at Constantinople。  I believe it was the first iron house

built in this country; and it was constructed at the works at

Millwall; London; in 1839。〃*

 'footnote。。。

Useful Information for Engineers; 2nd series; 225。  The mere list of

Mr。 Fairbairn's writings would occupy considerable space; for;

notwithstanding his great labours as an engineer; he has also been an

industrious writer。  His papers on Iron; read at different times

before the British Association; the Royal Society; and the Literary

and Philosophical Institution of Manchester; are of great value。  The

treatise on 〃Iron〃 in the Encyclopaedia Britannica is from his pen;

and he has contributed a highly interesting paper to Dr。 Scoffern's

Useful Metals and their Alloys on the Application of Iron to the

purposes of Ordnance; Machinery; Bridges; and House and Ship

Building。  Another valuable but less…known contribution to Iron

literature is his Report on Machinery in General; published in the

Reports on the Paris Universal Exhibition of 1855。  The experiments

conducted by Mr。 Fairbairn for the purpose of proving the excellent

properties of iron for shipbuildingthe account of which was

published in the Trans actions of the Royal Society eventually led to

his further experiments to determine the strength and form of the

Britannia and Conway Tubular Bridges; plate…girders; and other

constructions; the result of which was to establish quite a new era

in the history of bridge as well as ship building。

 。。。'



Since then iron structures of all kinds have been erected:  iron

lighthouses; iron…and…crystal palaces; iron churches; and iron

bridges。  Iron roads have long been worked by iron locomotives; and

before many years have passed a telegraph of iron wire will probably

be found circling the globe。  We now use iron roofs; iron bedsteads;

iron ropes; and iron pavement; and even the famous 〃wooden walls of

England〃 are rapidly becoming reconstructed of iron。  In short; we are

in the midst of what Mr。 Worsaae has characterized as the Age of

Iron。



At the celebration of the opening of the North Wales Railway at

Bangor; almost within sight of his iron bridge across the Straits of

Menai; Robert Stephenson said; 〃We are daily producing from the

bowels of the earth a raw material; in its crude state apparently of

no worth; but which; when converted into a locomotive engine; flies

over bridges of the same material; with a speed exceeding that of the

bird; advancing wealth and comfort throughout the country。  Such are

the powers of that all…civilizing instrument; Iron。〃



Iron indeed plays a highly important part in modem civilization。  Out

of it are formed alike the sword and the ploughshare; the cannon and

the printing…press; and while civilization continues partial and

half…developed; as it still is; our liberties and our industry must

necessarily in a great measure depend for their protection upon the

excellence of our weapons of war as well as on the superiority of our

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