310 ' I'KTITiON TO PARLIAMENT. 



" That the engines in Cornwall, in which county the steam- 

 engines used are more powerful than those used in any other 

 part of the kingdom, have now your petitioner's improved 

 boilers, and it appears from the monthly reports that these 

 engines, which in 1798 averaged only fourteen and half millions 

 now average three times that duty with the same quantity of 

 coals, making a saving to Cornwall alone of 2,781,264 bushels 

 of coals, or about 100,000?. per annum. And the engines at the 

 Consolidated Mines in November, 1827, performed sixty-seven 

 millions, being forty millions more than had been performed by 

 Boulton and Watt's chosen engine at Herland, as before stated. 



" That had it not been for your petitioner's invention, the 

 greater number of the Cornish mines, which produce nearly 

 2,000,0007. per annum, must have been abandoned in conse- 

 quence of the enormous expense attendant on the engines 

 previously in use. 



" That your petitioner has also invented the iron stowage 

 water-tanks and iron buoys now in general use in His Majesty's 

 navy, and with merchant's ships. 



" That twenty years ago your petitioner likewise invented 

 the steam-carriage, and carried it into general use on iron rail- 

 roads. 



" That your petitioner is the inventor of high-pressure steam- 

 engines, and also of water-pressure engines now in general use. 



" That his high-pressure steam-engines work without con- 

 densing water, an improvement essentially necessary to portable 

 steam-engines, and where condensing water cannot be procured. 



" That all the inventions above alluded to have proved of 

 immense national utility, but your petitioner has not been 

 reimbursed the money he has expended in perfecting his inven- 

 tions. That your petitioner has a wife and large family who 

 are not provided for. 



" That Parliament granted to Messrs. Boulton and Watt, 

 after the expiration of their patent for fourteen years, an exten- 

 sion of their privileges as patentees for an additional period, 

 whereby they gained, as your petitioner has been informed, 

 above 200,OOOZ. 



" That your petitioner therefore trusts that these his own 



