八喜电子书 > 经管其他电子书 > men of invention and industry >

第58部分

men of invention and industry-第58部分

小说: men of invention and industry 字数: 每页4000字

按键盘上方向键 ← 或 → 可快速上下翻页,按键盘上的 Enter 键可回到本书目录页,按键盘上方向键 ↑ 可回到本页顶部!
————未阅读完?加入书签已便下次继续阅读!






This was a great opportunity; and we eagerly embraced it。  The

works were now up to the mark in point of extent and appliances。 

The men in our employment were mostly of our own training: the

foremen had been promoted from the ranks; the manager; Mr。 W。 H。

Wilson; and the head draughtsman; Mr。 W。 J。 Pirrie (since become

partners); having; as pupils; worked up through all the

departments; and ultimately won their honourable and responsible

positions by dint of merit onlyby character; perseverance; and

ability。  We were therefore in a position to take up an important

contract of this kind; and to work it out with heart and soul。



As everything in the way of saving of fuel was of first…rate

importance; we devoted ourselves to that branch of economic

working。  It was necessary that buoyancy or space should be left

for cargo; at the same time that increased speed should be

secured; with as little consumption of coal as possible。  The

Messrs。 Elder and Co。; of Glasgow; had made great strides in this

direction with the paddle steam…engines which they had

constructed for the Pacific Company on the compound principle。 

They had also introduced them on some of their screw steamers;

with more or less success。  Others were trying the same principle

in various forms; by the use of high…pressure cylinders; and so

on; the form of the boilers being varied according to

circumstances; for the proper economy of fuel。  The first thing

absolutely wanted was; perfectly reliable information as to the

actual state of the compound engine and boiler up to the date of

our inquiry。  To ascertain the facts by experience; we dispatched

Mr。 Alexander Wilson; younger brother of the manager who had been

formerly a pupil of Messrs。 Macnab and Co。; of Greenock; and was

thoroughly able for the workto make a number of voyages in

steam vessels fitted with the best examples of compound engines。



The result of this careful inquiry was the design of the

machinery and boilers of the Oceanic and five sister…ships。  They

were constructed on the vertical overhead 〃tandem〃 type; with

five…feet stroke (at that time thought excessive); oval

single…ended transverse boilers; with a working pressure of sixty

pounds。  We contracted with Messrs。 Maudslay; Sons; and Field; of

London; for three of these sets; and with Messrs。 George

Forrester and Co。; of Liverpool; for the other three; and as we

found we could build the six vessels in the same time as the

machinery was being constructed; and; as all this machinery had

to be conveyed to Belfast to be there fitted on board; whilst the

vessels were being otherwise finished; we built a little

screw…steamer; the Camel; of extra strength; with very big

hatchways; to receive these large masses of iron; and this; in

course of time; was found to work with great advantage; until

eventually we constructed our own machinery。



We were most fortunate in the type of engine we had fixed upon;

for it proved both economical and serviceable in all ways; and;

with but slight modifications; we repeated it in the many

subsequent vessels which we built for the White Star Company。 

Another feature of novelty in these vessels consisted in placing

the first…class accommodation amidships; with the third…class aft

and forward。  In all previous ocean steamers; the cabin

passengers had been berthed near the stern; where the heaving

motion of the vessel was far greater than in the centre; and

where that most disagreeable vibration inseparable from proximity

to the propeller was ever present。  The unappetising smells from

the galley were also avoided。  And last; but not least; a

commodious smoking…saloon was fitted up amidships; contrasting

most favourably with the scanty accommodation provided in other

vessels。  The saloon; too; presented the novelty of extending the

full width of the vessel; and was lighted from each side。 

Electric bells were for the first time fitted on board ship。  The

saloon and entire range of cabins were lighted by gas; made on

board; though this has since given place to the incandescent

electric light。  A fine promenade deck was provided over the

saloon; which was accessible from below in all weathers by the

grand staircase。



These; and other arrangements; greatly promoted the comfort and

convenience of the cabin passengers; while those in the steerage

found great improvements in convenience; sanitation; and

accommodation。  〃Jack〃 had his forecastle well ventilated and

lighted; and a turtle…back over his head when on deck; with

winches to haul for him; and a steam…engine to work the wheel;

while the engineers and firemen berthed as near their work as

possible; never needing to wet a jacket or miss a meal。  In

short; for the first time perhaps; ocean…voyaging; even in the

North Atlantic; was made not only less tedious and dreadful to

all; but was rendered enjoyable and even delightful to many。 

Before the Oceanic; the  pioneer of the new line; was even

launched; rival companies had already  consigned her to the

deepest place in the ocean。  Her first appearance in Liverpool

was therefore regarded with much interest。  Mr。 Ismay; during the

construction of the vessel; took every pains to suggest

improvements and arrangements with a view to the comfort and

convenience of the travelling public。  He accompanied the vessel

on her first voyage to New York in March; 1871; under command of

Captain; now Sir Digby Murray; Brt。  Although severe weather was

experienced; the ship made a splendid voyage; with a heavy cargo

of goods and passengers。  The Oceanic thus started the

Transatlantic traffic of the Company; with the house…flag of the

White Star proudly flying on the main。



It may be mentioned that the speed of the Oceanic was at least a

knot faster per hour than had been heretofore accomplished across

the Atlantic。  The motion of the vessel was easy; without any

indication of weakness or straining; even in the heaviest

weather。  The only inducement to slow was when going head to it

(which often meant head through it); to avoid the inconvenience

of shipping a heavy body of 〃green sea〃 on deck forward。  A

turtle…back was therefore provided to throw it off; which proved

so satisfactory; as it had done on the Holyhead and Kingstown

boats; that all the subsequent vessels were similarly

constructed。  Thus; then; as with the machinery; so was the hull

of the Oceanic; a type of the succeeding vessels; which after

intervals of a few months took up their stations on the

Transatlantic line。



Having often observed; when at sea in heavy weather; how the

pitching of the vessel caused the weights on the safety…valves to

act irregularly; thus letting puffs of steam escape at every

heave; and as high pressure steam was too valuable a commodity to

be so wasted; we determined to try direct…acting spiral springs;

similar to those used in locomotives; in connection with the

compound engine。  But as no such experiment was possible in any

vessels requiring the Board of Trade certificate; the alternative

of using the Camel as an experimental vessel was adopted。  The

spiral springs were accordingly fitted upon the boiler of that

vessel; and with such a satisfactory result that the Board of

Trade allowed the use of the same contrivance on all the boilers

of the Oceanic and every subsequent steamer; and the contrivance

has now come into general use。



It would be too tedious to mention in detail the other ships

built for the White Star line。  The Adriatic and Celtic were made

17 feet 6 inches longer than the Oceanic; and a little sharper;

being 437 feet 6 inches keel; 41 feet beam; and 32 feet hold。 

The success of the Company had been so great under the able

management of Ismay; Imrie and Co。; and they had secured so large

a share of the passengers and cargo; as well as of the mails

passing between Liverpool and New York; that it was found

necessary to build two still larger and faster vesselsthe

Britannic and Germamic: these were 455 feet in length; 45 feet in

beam; and of 5000 indicated horse…power。  The Britannic was in

the first instance constructed with the propeller fitted to work

below the line of keel when in deep water; by which means the

〃racing〃 of the engines was avoided。  When approaching shallow

water; the propeller was raised by steam…power to the ordinary

position without any necessity for stopping the engines during

the operation。  Although there was an increase of speed by this

means through the uniform revolutions of the machinery in the

heaviest sea; yet there was an objectionable amount of vibration

at certain parts of the vessel; so that we found it necessary to

return to the ordinary fixed propeller; working in the line of

direction of the vessel。  Comfort at sea is of even more

importance than speed; and although we had succeeded in four

small steamers working on the new principle; it was found better

to continue in the larger ships to resort to the established

modes of propulsion。  It may happen that at some future period

the new method may yet be adopted with complete success。



Meanwhile competition went on with other companies。  Monopoly

cannot exist between England and America。  Our plans were

followed; and sharper boats and heavier power became the rule of

the day。  But increase of horse…power of engines means increase

of heating surface and largely increased boilers; when we reach

the vanishing point of profit; after which there is nothing left

but speed and expense。  It may be possible to fill a ship with

boilers; and to save a few hours in the passage from Liverpool to

New York by a tremendous expenditure of coal; but whether that

will answer the purpose of any body of shareholders must be left

for the future to determine。



〃Brute force〃 may be still further employed。  It is quite

possible that recent 〃large strides〃 towards a more speedy

transit across 

返回目录 上一页 下一页 回到顶部 1 1

你可能喜欢的