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One of these was Richard Trevithick in England; another was Oliver Evans of Philadelphia. Both Trevithick and Evans invented the high-pressure engine.
But most mechanical inventions are of a very composite character, and are led up to by the labour and the study of a long succession of workers. Thus Savary and Newcomen led up to Watt; Cugnot, Murdock, and Trevithick to the Stephensons; and Maudslay to Clement, Roberts, Nasmyth, Whitworth, and many more mechanical inventors.
No one, bearing in mind the date at which it was built, can examine this engine without having an increased respect for the talents of Richard Trevithick, a man to whom we owe so much and whose labors have as yet met with such scant recognition. Engineering. By Prof. C.W. MacCORD, Sc.
Woolf patented a tubular boiler, which was extensively employed at the Cornish mines, and was found greatly to facilitate the production of steam, by the extension of the heating surface. The ingenious Trevithick, in his patent of 1815, seems also to have entertained the idea of employing a boiler constructed of “small perpendicular tubes,” with the same object of increasing the heating surface.
And the custom of the coaster or the sound-steamer is somewhat similar. The old high-pressure engine of Richard Trevithick, which, thanks to Mr. Webb, has been rescued from a scrap heap in South Wales, and re-erected at the Crewe Works. We give engravings of this engine, which have been prepared from photographs kindly furnished to us by Mr. Webb, and which will clearly show its design.
Another mechanic at Redruth, Richard Trevithick, captain in a tin-mine, took up the torch, built a 'Dragon' for use on the common highway, but was baffled by the hopeless badness of the roads, and turned to making a locomotive for use on the iron ways of the Welsh collieries.
Trevithick was here hovering on the verge of a great discovery; but that he was not aware of the action of the blast in contributing to increase the draught and thus quicken combustion, is clear from the fact that he employed bellows for this special purpose; and at a much later date he took out a patent which included a method of urging the fire by means of fanners.
Hence Trevithick, in his patent, provided that the periphery of the driving-wheels should be made rough by the projection of bolts or cross-grooves, so that the adhesion of the wheels to the road might be secured. Following up the presumed necessity for a more effectual adhesion between the wheels and the rails, Mr.
The Master of the Trevithick was not in the habit of bringing ladies to see the kennels, and the whip and his wife had discussed the matter very fully over their supper the previous evening, trying to guess what it might portend. "A new mistress up at the 'All, I shouldn't wonder," asserted Mrs. Denman confidently. "Hounds all fit, Denman?" asked Trenby in quick, authoritative tones. "Yes, sir.
The year 1801, the first of the nineteenth century, was annus mirabilis in the industrial history of mankind. It was in that year that the railway locomotive was invented by Richard Trevithick, who had studied the steam engine under a friend and assistant of James Watt.
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