industrial biography-第22节
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were many persons; indeed; who held that it was better we should be
supplied with iron from Spain than make it at home; in consequence of
the great waste of wood involved by the manufacture; but against this
view Yarranton strongly contended; and held; what is as true now as
it was then; that the manufacture of iron was the keystone of
England's industrial prosperity。 He also apprehended great danger to
the country from want of iron in event of the contingency of a
foreign war。 〃When the greatest part of the iron…works are asleep;〃
said he; 〃if there should be occasion for great quantities of guns
and bullets; and other sorts of iron commodities; for a present
unexpected war; and the Sound happen to be locked up; and so prevent
iron coming to us; truly we should then be in a fine case!〃
Notwithstanding these apprehended national perils arising from the
want of iron; no steps seem to have been taken to supply the
deficiency; either by planting woods on a large scale; as recommended
by Yarranton; or by other methods; and the produce of English iron
continued steadily to decline。 In 1720…30 there were found only ten
furnaces remaining in blast in the whole Forest of Dean; where the
iron…smelters were satisfied with working up merely the cinders left
by the Romans。 A writer of the time states that we then bought
between two and three hundred thousand pounds' worth of foreign iron
yearly; and that England was the best customer in Europe for Swedish
and Russian iron。*
'footnote。。。
JOSHUA GEE; The Trade and Navigation of Great Britain considered;
1731。
。。。'
By the middle of the eighteenth century the home manufacture had so
much fallen off; that the total production of Great Britain is
supposed to have amounted to not more than 18;000 tons a year;
four…fifths of the iron used in the country being imported from
Sweden。*
'footnote。。。
When a bill was introduced into Parliament in 1750 with the object of
encouraging the importation of iron from our American colonies; the
Sheffield tanners petitioned against it; on the ground that; if it
passed; English iron would be undersold; many forges would
consequently be discontinued; in which case the timber used for fuel
would remain uncut; and the tanners would thereby be deprived of bark
for the purposes of their trade!
。。。'
The more that the remaining ironmasters became straitened for want of
wood; the more they were compelled to resort to cinders and coke made
from coal as a substitute。 And it was found that under certain
circumstances this fuel answered the purpose almost as well as
charcoal of wood。 The coke was made by burning the coal in heaps in
the open air; and it was usually mixed with coal and peat in the
process of smelting the ore。 Coal by itself was used by the country
smiths for forging whenever they could procure it for their smithy
fires; and in the midland counties they had it brought to them;
sometimes from great distances; slung in bags across horses'
backs;for the state of the roads was then so execrable as not to
admit of its being led for any considerable distance in carts。 At
length we arrive at a period when coal seems to have come into
general use; and when necessity led to its regular employment both in
smelting the ore and in manufacturing the metal。 And this brings us
to the establishment of the Coalbrookdale works; where the smelting
of iron by means of coke and coal was first adopted on a large scale
as the regular method of manufacture。
Abraham Darby; the first of a succession of iron manufacturers who
bore the same name; was the son of a farmer residing at Wrensnest;
near Dudley。 He served an apprenticeship to a maker of malt…kilns
near Birmingham; after which he married and removed to Bristol in
1700; to begin business on his own account。 Industry is of all
politics and religions: thus Dudley was a Royalist and a Churchman;
Yarranton was a Parliamentarian and a Presbyterian; and Abraham Darby
was a Quaker。 At Bristol he was joined by three partners of the same
persuasion; who provided the necessary capital to enable him to set
up works at Baptist Mills; near that city; where he carried on the
business of malt…mill making; to which he afterwards added brass and
iron founding。
At that period cast…iron pots were in very general use; forming the
principal cooking utensils of the working class。 The art of casting
had; however; made such small progress in England that the pots were
for the most part imported from abroad。 Darby resolved; if possible;
to enter upon this lucrative branch of manufacture; and he proceeded
to make a number of experiments in pot…making。 Like others who had
preceded him; he made his first moulds of clay; but they cracked and
burst; and one trial failed after another。 He then determined to find
out the true method of manufacturing the pots; by travelling into the
country from whence the best were imported; in order to master the
grand secret of the trade。 With this object he went over to Holland
in the year 1706; and after diligent inquiry he ascertained that the
only sure method of casting 〃Hilton ware;〃 as such castings were then
called; was in moulds of fine dry sand。 This was the whole secret。
Returning to Bristol; accompanied by some skilled Dutch workmen;
Darby began the new manufacture; and succeeded to his satisfaction。
The work was at first carried on with great secrecy; lest other
makers should copy the art; and the precaution was taken of stopping
the keyhole of the workshop…door while the casting was in progress。
To secure himself against piracy; he proceeded to take out a patent
for the process in the year 1708; and it was granted for the term of
fourteen years。 The recital of the patent is curious; as showing the
backward state of English iron…founding at that time。 It sets forth
that 〃whereas our trusty and well…beloved Abraham Darby; of our city
of Bristol; smith; hath by his petition humbly represented to us;
that by his study; industry; and expense; he hath found out and
brought to perfection a new way of casting iron bellied pots and
other iron bellied ware in sand only; without loam or clay; by which
such iron pots and other ware may be cast fine and with more ease and
expedition; and may be afforded cheaper than they can be by the way
commonly used; and in regard to their cheapness may be of great
advantage to the poor of this our kingdom; who for the most part use
such ware; and in all probability will prevent the merchants of
England going to foreign markets for such ware; from whence great
quantities are imported; and likewise may in time supply other
markets with that manufacture of our dominions;〃 &c。。。。。 grants the
said Abraham Darby the full power and sole privilege to make and sell
such pots and ware for and during the term of fourteen years thence
ensuing。〃
Darby proceeded to make arrangements for carrying on the manufacture
upon a large scale at the Baptist Mills; but the other partners
hesitated to embark more capital in the concern; and at length
refused their concurrence。 Determined not to be baulked in his
enterprise; Darby abandoned the Bristol firm; and in the year 1709 he
removed to Coalbrookdale in Shropshire; with the intention of
prosecuting the enterprise on his own account。 He took the lease of a
little furnace which had existed at the place for more than a
century; as the records exist of a 〃smethe〃 or 〃smeth…house〃 at
Coalbrookdale in the time of the Tudors。 The woods of oak and hazel
which at that time filled the beautiful dingles of the dale; and
spread in almost a continuous forest to the base of the Wrekin;
furnished abundant fuel for the smithery。 As the trade of the
Coalbrookdale firm extended; these woods became cleared; until the
same scarcity of fuel began to be experienced that had already
desolated the forests of Sussex; and brought the manufacture of iron
in that quarter to a stand…still。
It appears from the 'Blast Furnace Memorandum Book' of Abraham Darby;
which we have examined; that the make of iron at the Coalbrookdale
foundry; in 1713; varied from five to ten tons a week。 The principal
articles cast were pots; kettles; and other 〃hollow ware;〃 direct
from the smelting…furnace; the rest of the metal was run into pigs。
In course of time we find that other castings were turned out: a few
grates; smoothing…irons; door…frames; weights; baking…plates;
cart…bushes; iron pestles and mortars; and occasionally a tailor's
goose。 The trade gradually increased; until we find as many as 150
pots and kettles cast in a week。
The fuel used in the furnaces appears; from the Darby
Memorandum…Book; to have been at first entirely charcoal; but the
growing scarcity of wood seems to have gradually led to the use of
coke; brays or small coke; and peat。 An abundance of coals existed in
the neighbourhood: by rejecting those of inferior