友情提示:如果本网页打开太慢或显示不完整,请尝试鼠标右键“刷新”本网页!阅读过程发现任何错误请告诉我们,谢谢!! 报告错误
飞读中文网 返回本书目录 我的书架 我的书签 TXT全本下载 进入书吧 加入书签

men of invention and industry-第77章

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!




I went twice through the first two books of the latter before I

was twelve years old。  At this age I was sent to the Edinburgh

Academy; my eldest brother William being then a medical student

at the University。  I remained at Edinburgh two years。  My early

progress in mathematics would have been lost in the classical

training which was then insisted upon at the academy; but for my

brother who was not only a good mathematician but an excellent

mechanic。  He took care to carry on my instruction in that branch

of knowledge; as well as to teach me to make models of machines

and buildings; in which he was himself proficient。  I remember;

in one of my journeys to Edinburgh; by coach from Darlington;

that a gentleman expressed his wonder what a screw propeller

could be like; for the screw; as a method of propulsion; was then

being introduced。  I pointed out to him the patent tail of a

windmill by the roadside; and said; 〃It is just like that!〃



In 1844 my mother died; and shortly after; my brother having

become M。D。; and obtained a prize gold medal; we returned to

Scarborough。  It was intended that he should assist my father;

but he preferred going abroad for a few years。  I may mention

further; with relation to him; that after many years of

scientific research and professional practice; he died at Hong

Kong in 1858; when a public monument was erected to his memory;

in what is known as the 〃Happy Valley。〃



I remained for a short time under the tuition of my old master。 

But as the time was rapidly approaching when I too must determine

what I was 〃to be〃 in life。  I had no hesitation in deciding to

be an engineer; though my father wished me to be a barrister。 

But I kept constant to my resolution; and eventually he

succeeded; through his early acquaintance with George Stephenson;

in gaining for me an entrance to the engineering works of Robert

Stephenson and Co。; at Newcastle…upon…Tyne。  I started there as a

pupil on my fifteenth birthday; for an apprenticeship of five

years。  I was to spend the first four years in the various

workshops; and the last year in the drawing…office。



I was now in my element。  The working hours; it is true; were

very long;being from six in the morning until 8。15 at night;

excepting on Saturday; when we knocked off at four。  However; all

this gave me so much the more experience; and; taking advantage

of it; I found that; when I had reached the age of eighteen; I

was intrusted with the full charge of erecting one side of a

locomotive。  I had to accomplish the same amount of work as my

mate on the other side; one Murray Playfair; a powerful;

hard…working Scotchman。  My strength and endurance were sometimes

taxed to the utmost; and required the intervals of my labour to

be spent in merely eating and sleeping。



I afterwards went through the machine…shops。  I was fortunate

enough to get charge of the best screw…cutting and brass…turning

lathe in the shop; the former occupant; Jack Singleton; having

just been promoted to a foreman's berth at the Messrs。

Armstrong's factory。  He afterwards became superintendent of all

the hydraulic machinery of the Mersey Dock Trust at Liverpool。 

After my four years had been completed; I went into the

drawing…office; to which I had looked forward with pleasure; and;

having before practised lineal as well as free…hand drawing; I

soon succeeded in getting good and difficult designs to work out;

and eventually finished drawings of the engines。  Indeed; on

visiting the works many years after; one of these drawings was

shown to me as a 〃specimen;〃 the person exhibiting it not knowing

that it was my own work。



In the course of my occasional visits to Scarborough; my

attention was drawn to the imperfect design of the lifeboats of

the period; the frequent shipwrecks along the coast indicating

the necessity for their improvement。  After considerable

deliberation; I matured a plan for a metal lifeboat; of a

cylindrico…conical or chrysalis form; to be propelled by a screw

at each end; turned by sixteen men inside; seated on

water…ballast tanks; sufficient room being left at the ends

inside for the accommodation of ten or twelve shipwrecked

persons; while a mate near the bow; and the captain near the

stern in charge of the rudder; were stationed in recesses in the

deck about three feet deep。  The whole apparatus was almost

cylindrical; and watertight; save in the self…acting ventilators;

which could only give access to the smallest portion of water。  I

considered that; if the lifeboat fully manned were launched into

the roughest seas; or off the deck of a vessel; it would; even if

turned on its back; immediately right itself; without any of the

crew being disturbed from their positions; to which they were to

have been strapped。



It happened that at this time (the summer of 1850) his Grace the

late Duke of Northumberland; who had always taken a deep interest

in the Lifeboat Institution; offered a prize of one hundred

guineas for the best model and design of such a craft; so I

determined to complete my plans and make a working model of my

lifeboat。  I came to the conclusion that the cylindrico…conical

form; with the frames to be carried completely round and forming

beams as well; and the two screws; one at each end; worked off

the same power; by which one or other of them would always be

immersed; were worth registering in the Patent Office。  I

therefore entered a caveat there; and continued working at my

model in the evenings。  I first made a wooden block model; on the

scale of an inch to the foot。  I had some difficulty in procuring

sheets of copper thin enough; so that the model should draw only

the correct amount of water; but at last I succeeded; through

finding the man at Newcastle who had supplied my father with

copper plates for his early road locomotive。



The model was only 32 inches in length; and 8 inches in beam; and

in order to fix all the internal fittings; of tanks; seats; crank

handles; and pulleys; I had first to fit the shell plating; and

then; by finally securing one strake of plates on; and then

another; after all inside was complete; I at last finished for

good the last outside plate。  In executing the job; my early

experience of all sorts of handiwork came serviceably to my aid。 

After many a whole night's workfor the evenings alone were not

sufficient for the purposeI at length completed my model; and

triumphantly and confidently took it to sea in an open boat; and

then cast it into the waves。  The model either rode over them or

passed through them; if it was sometimes rolled over; it righted

itself at once; and resumed its proper attitude in the waters。 

After a considerable trial I found scarcely a trace of water

inside。  Such as had got there was merely through the joints in

the sliding hatches; though the ventilators were free to work

during the experiments。



I completed the prescribed drawings and specifications; and
返回目录 上一页 下一页 回到顶部 0 0
未阅读完?加入书签已便下次继续阅读!
温馨提示: 温看小说的同时发表评论,说出自己的看法和其它小伙伴们分享也不错哦!发表书评还可以获得积分和经验奖励,认真写原创书评 被采纳为精评可以获得大量金币、积分和经验奖励哦!