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The Railways

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(1) Richard Trevithick, letter to Davies Gilbert (22 February, 1804)

Yesterday we proceeded on our journey with the engine. We performed the nine miles in four hours and five minutes. We had to remove some large rocks on the way. On our return home one of the small bolts that fastened the axle to the boiler broke, and all the water ran out of the boiler.

(2) Richard Trevithick, letter to Davies Gilbert (2nd March, 1804)

We have tried the carriage with twenty-five tons of iron, and found we were more than a match for that weight. The steam is delivered into the chimney above the damper. It makes the draught much stronger by going up the chimney.

(3) In May 1854, Thomas Ellis, an engineer from Tredegar, wrote a letter describing the first journey the Penydarren took in February, 1804.

My father was at Penydarren when the engine was made and tried. Samuel Homfray, proprietor of the Penydarren Iron Works, Merthyr Tydfil, made a bet of 1,000 guineas with Richard Crawshay, of the Cyfarthfa Iron Works, that Trevithick's steam-engine could convey a load of iron from his works to the Navigation House (nine miles distant).

(4) In October 1858, Rees Jones was interviewed by the Mining Journal.

I assisted Mr. Trevithick in the making of his locomotive. She worked very well; but frequently her weight broke the tram-plates. On the third journey she broke a great many of the tram-plates. She was brought back to Penydarren by horses. The engine was never used as a locomotive after this.