Steam Engine
章节目录
共 44 段- Such are the virtues, such the powers, which the steam engin
- From the circumstance of the nature of the machinery having
- This power of swelling and contracting its dimensions accord
- The cause of this effect is, that the weight of the atmosphe
- When this has taken place, suppose the regulator be moved so
- Papin's project for producing a vacuum under a piston by
- The great-grandfather of Watt, a farmer in Aberdeenshire, wa
- If we suppose as much, and no more, cold water introduced in
- Now let the instrument be immersed in a vessel of boiling wa
- Let B (_fig._ 17.) be a strong spherical vessel of brass, su
- But here a difficulty presented itself, against which it was
- In the cylinder represented at C (_fig._ 21.), the piston P
- (78.) Another source of difficulty arose from the necessity
- If the energy of the moving force be less in amount than the
- To render these general principles more intelligible, let us
- In the manufacture of iron, it is of great importance to kee
- Where the mechanical action to be transmitted is a _pull_, a
- (124.) By such arrangements the motion imparted to the main
- Steam is supplied from the boiler to the cylinder by the ste
- (134.) The slide G has always steam of a full pressure behin
- The common hemp-packed piston has been already in part descr
- The fuel when introduced at the fire-door A, should be laid
- The mouth of the tube by which the feed is introduced should
- A large aperture closed by a flange secured with screws,
- (174.) There are many circumstances which obstruct the pract
- It is known that the metals have a strong attraction for oxy
- "His talents and fancy overflowed on every subject. One gent
- The boiler A B is a cylinder with flat circular ends. The
- (185.) It is a singular fact, that in the history of this
- (189.) The Sanspareil of Mr. Hackworth is represented in _fi
- It will be recollected that the fire-place is situated at on
- The tubes act as stays, connecting the ends of the boiler to
- The tender is a carriage attached behind the engine and clos
- (200.) In the autumn of 1838 a course of experiments was com
- But besides the greater smoothness of railways compared with
- (205.) Among the numerous popular prejudices to which this n
- The nature of the effect required to be produced by marine e
- It is stated by Mr. Hall that a vacuum is preserved in his
- The ordinary paddle-wheel, as has been already stated, is a
- The run from Bombay to a place called Muscat, on the souther
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- P′ = (Wa/VA(e + c)) − b.
- Steam cannot be applied _immediately_ to any useful purpose,