industrial biography-及34嫗
梓囚徒貧圭�鮗� ○ 賜 ★ 辛酔堀貧和鍬匈��梓囚徒貧議 Enter 囚辛指欺云慕朕村匈��梓囚徒貧圭�鮗� ● 辛指欺云匈競何��
!!!!隆堋響頼��紗秘慕禰厮宴和肝写偬堋響��
country are generally unfit for coking�察�and lose as much as 55 per
cent。 in the process。 But by using the hot blast�察�the coal could be
sent to the blast´furnace in its raw state�察�by which a large saving
of fuel was effected。*
��footnote。。。
Mr。 Mushet says�察 �The greatest produce in iron per furnace with the
Black Band and cold blast never exceeded 60 tons a´week。 The produce
per furnace now averages 90 tons a´week。 Ten tons of this I attribute
to the use of raw pit´coal�察�and the other twenty tons to the use of
hot blast。; ��Papers on Iron and Steel�察�127。�А�The produce per furnace
is now 200 tons a´week and upwards。 The hot blast process was
afterwards applied to the making of iron with the anthracite or stone
coal of Wales�察�for which a patent was taken out by George Crane in
1836。 Before the hot blast was introduced�察�anthracite coal would not
act as fuel in the blast´furnace。 When put in�察�it merely had the
effect of putting the fire out。 With the aid of the hot blast��
however�察�it now proves to be a most valuable fuel in smelting。
。。。��
Even coals of an inferior quality were by its means made available
for the manufacture of iron。 But one of the peculiar qualities of the
Black Band ironstone is that in many cases it contains sufficient
coaly matter for purposes of calcination�察�without any admixture of
coal whatever。 Before its discovery�察�all the iron manufactured in
Scotland was made from clay´band�察�but the use of the latter has in a
great measure been discontinued wherever a sufficient supply of Black
Band can be obtained。 And it is found to exist very extensively in
most of the midland Scotch counties��the coal and iron measures
stretching in a broad belt from the Firth of Forth to the Irish
Channel at the Firth of Clyde。 At the time when the hot blast was
invented�察�the fortunes of many of the older works were at a low ebb��
and several of them had been discontinued�察�but they were speedily
brought to life again wherever Black Band could be found。 In 1829��
the year after Neilson's patent was taken out�察�the total make of
Scotland was 29��000 tons。 As fresh discoveries of the mineral were
made�察�in Ayrshire and Lanarkshire�察�new works were erected�察�until�察�in
1845�察�we find the production of Scotch pig´iron had increased to
475��000 tons。 It has since increased to upwards of a million of tons��
nineteen´twentieths of which are made from Black Band ironstone。*
��footnote。。。
It is stated in the North British Review for Nov。 1845�察�that ;As in
Scotland every furnacewith the exception of one at Carronnow uses
the hot blast the saving on our present produce of 400��000 tons of
pig´iron is 2��000��000 tons of coals�察�200��000 tons of limestone�察�and
#650��000 sterling per annum。; But as the Scotch produce is now above
a million tons of pig´iron a year�察�the above figures will have to be
multiplied by 2 1/2 to give the present annual savings。
。。。��
Employment has thus been given to vast numbers of our industrial
population�察�and the wealth and resources of the Scotch iron districts
have been increased to an extraordinary extent。 During the last year
there were 125 furnaces in blast throughout Scotland�察�each employing
about 400 men in making an average of 200 tons a week�察�and the money
distributed amongst the workmen may readily be computed from the fact
that�察�under the most favourable circumstances�察�the cost of making
iron in wages alone amounts to 36s。 a´ton。*
��footnote。。。
Papers read by Mr。 Ralph Moore�察�Mining Engineer�察�Glasgow�察�before the
Royal Scottish Society of Arts�察�Edin。 1861�察�pp。 13�察�14。
。。。��
An immense additional value was given to all land in which the Black
Band was found。 Mr。 Mushet mentions that in 1839 the proprietor of
the Airdrie estate derived a royalty of 16��500L。 from the mineral��
which had not before its discovery yielded him one farthing。 At the
same time�察�many fortunes have been made by pushing and energetic men
who have of late years entered upon this new branch of industry。
Amongst these may be mentioned the Bairds of Gartsherrie�察�who vie
with the Guests and Crawshays of South Wales�察�and have advanced
themselves in the course of a very few years from the station of
small farmers to that of great capitalists owning estates in many
counties�察�holding the highest character commercial men�察�and ranking
among the largest employers of labour in the kingdom。
CHAPTER X。
MECHANICAL INVENTIONS AND INVENTORS。
;L'invention nest´elle pas la poesie de la science�拭 � 。 。 Toutes les
grandes decouvertes portent avec elles la trace ineffacable d'une
pensee poetique。 ll faut etre poete pour creer。 Aussi�察�sommes´nous
convaincus que si les puissantes machines�察�veritable source de la
production et de l'industrie de nos jours�察�doivent recevoir des
modifications radicales�察�ce sera a des hommes d'imagination�察�et non
point a dea hommes purement speciaux�察�que l'on devra cette
transformation。;E。 M。 BATAILLE�察�Tr aite des Machines a Vapeur。
Tools have played a highly important part in the history of
civilization。 Without tools and the ability to use them�察�man were
indeed but a ;poor�察�bare�察�forked animal�察�worse clothed than the
birds�察�worse housed than the beaver�察�worse fed than the jackal。 ;Weak
in himself�察─�says Carlyle�察 �and of small stature�察�he stands on a
basis�察�at most for the flattest´soled�察�of some half square foot��
insecurely enough�察�has to straddle out his legs�察�Jest the very wind
supplant him。 Feeblest of bipeds� �Three quintals are a crushing load
for him�察�the steer of the meadow tosses him aloft like a waste rag。
Nevertheless he can use tools�察�can devise tools�此 �with these the
granite mountain melts into light dust before him�察�he kneads glowing
iron as if it were soft paste�察�seas are his smooth highway�察�winds and
fire his unvarying steeds。 Nowhere do you find him without tools�此 �
without tools he is nothing�察�with tools he is all。; His very first
contrivances to support life were tools of the simplest and rudest
construction�察�and his latest achievements in the substitution of
machinery for the relief of the human hand and intellect are founded
on the use of tools of a still higher order。 Hence it is not without
good reason that man has by some philosophers been defined as A
TOOL´MAKING ANIMAL。
Tools�察�like everything else�察�had small beginnings。 With the primitive
stone´hammer and chisel very little could be done。 The felling of a
tree would occupy a workman a month�察�unless helped by the destructive
action of fire。 Dwellings could not be built�察�the soil could not be
tilled�察�clothes could not be fashioned and made�察�and the hewing out
of a boat was so tedious a process that the wood must have been far
gone in decay before it could be launched。 It was a great step in
advance to discover the art of working in metals�察�more especially in
steel�察�one of the few metals capable of taking a sharp edge and
keeping it。 From the date of this discovery�察�working in wood and
stone would be found comparatively easy�察�and the results must
speedily have been felt not only in the improvement of man's daily
food�察�but in his domestic and social condition。 Clothing could then
be made�察�the primitive forest could be cleared and tillage carried
on�察�abundant fuel could be obtained�察�dwellings erected�察�ships built��
temples reared�察�every improvement in tools marking a new step in the
development of the human intellect�察�and a further stage in the
progress of human civilization。
The earliest tools were of the simplest possible character��
consisting principally of modifications of the wedge�察�such as the
knife�察�the shears ��formed of two knives working on a joint���察�the
chisel�察�and the axe。 These�察�with the primitive hammer�察�formed the
principal stock´in´trade of the early mechanics�察�who were
handicraftsmen in the literal sense of the word。 But the work which
the early craftsmen in wood�察�stone�察�brass�察�and iron�察�contrived to
execute�察�sufficed to show how much expertness in the handling of
tools will serve to compensate for their mechanical imperfections。
Workmen then sought rather to aid muscular strength than to supersede
it�察�and mainly to facilitate the efforts of manual skill。 Another
tool became added to those mentioned above�察�which proved an
additional source of power to the workman。 We mean the Saw�察�which was
considered of so much importance that its inventor was honoured with
a place among the gods in the mythology of the Greeks。 This invention
is said to have been suggested by the arrangement of the teeth in the
jaw of a serpent�察�used by Talus the nephew of Daedalus in dividing a
piece of wood。 From the representations of ancient tools found in the
paintings at Herculaneum it appears that the frame´saw used by the
ancients very nearly resembled that still in use�察�and we are informed
that the tools employed in the carpenters' shops at Nazareth at this
day are in most respects the same as those represented in the buried
Roman city。 Another very ancient tool referred to in the Bible and in
Homer was the File�察�which was used to sharpen weapons and implements。
Thus the Hebrews ;had a file for the mattocks�察�and for the coulters��
and for the forks�察�and for the axes�察�and to sharpen the goads。;*
��footnote。。。
1 Samuel�察�ch。 xiii。 v。 21。
。。。��
When to these we add the adze�察�plane´irons�察�the anger�察�and the
chisel�察�we sum up the tools principally relied on by the early
mechanics for working in wood and iron。
Such continued to be the chief tools in use down almost to our own
day。 The smith was at first the principal tool´maker�察�but special
branches of trade were gradually established�察�devoted to tool´making。
So long�察�however�察�as the workman relied mainly on his dexterity of
hand�察�the amount of production was comparatively limited�察�for the
number of skilled workmen was but small。 The articles turned out by
them�察�being the product of tedious manual labour�察�were too dear to
come into common use�察�and were made almost exclusively for the richer
classes of the community。 It was not until machinery had been
invented and become generally adopted that many of the ordinary
articles of necessity and of comfort were produced in sufficient
abundance and at such prices as enabled them to enter into the
consumption of the great body of the people。
But every improver of tools had a long and difficult battle to fight��
for any improvement in their effective power was sure to touch the
interests of some established craft。 Especially was this the case
with machines�察�which are but tools of a more complete though
complicated kind than those above described。
Take�察�for instance�察�the case of the Saw。 The tedious drudgery of
dividing timber by the old fashioned hand´saw is well known。 To avoid
it�察�some ingenious person suggested that a number of saws should be
fixed to a frame in a mill�察�so contrived as to work with a
reciprocating