to the. Boilers of Ordinary Steam-Engines. o3o 



"The continued passage of high pressure steam (genera- 

 ted as above) through the tube z, heats the water, which 

 occupies about half the interior of the boiler, and by that 

 means a sufficient quantity of Steam raey be produced in the 

 boiler for working an engine of the ordinary construction, 

 and with a very important saving in the quantity of fuel, 

 compared to what would be consumed, to effect the same 

 purpose, by any other plans heretofore adopted.'' 



" Now, whereas the materials of which my said improve- 

 ments are constructed, and the exact proportions of the 

 relative parts, are not subjects for which I hereby claim ex- 

 clusive privilege, though I have described those materials 

 and proportions which I have found most useful ; neither 

 do I hereby claim exclusive privilege for the peculiar forms 

 of the various mechanical agents which 1 employ, but only 

 for a combination of such and the like agents as will pro- 

 duce the said improvements, the nature of which is herein 

 before declared, and for which a claim to exclusive privi- 

 lege is hereinafter made. And whereas, I have only repre- 

 sented in my said drawings annexed, such parts of a steam- 

 engine as comprise my said improvements, the various 

 mode of applying such said improvements, by means of the 

 steam-pipe being too well known to require particular des- 

 cription here, jlnd ivhereas, my said generator may be 

 heated by a variety of known furnaces, I have not described 

 any one in particular, but the one I have used and found to 

 be the best is one of the cupola kind, fed by a blast. 

 And whereas, I have described in my said drawing, Fig. 1, 

 a safety pipe and indicator, and a forcing-pump, neither of 

 which are in themselves new, but which apparatuses, or 

 similar ones, constitute a combination necessary to my said 

 improvements, aud are inserted as such; I therefore hereby 

 claim exclusive privilegefor the following improvements on- 

 ly : that is to say, first — for healing water or other fluid 

 or fluids, for such purpose of generating steam for steam-en- 

 gines, in a vessel or vessels, kept (during such process of 

 heating) full of such water or other fluid or fluids, and under 

 a pressure greater than the expansive force cf the steam to 

 be generated from such water or other fluid or fluids, at the 

 time of its generation. 



" Secondly, — For causing such water, or other fluid or 

 Muids, so heated as aforesaid, to escape from under the said 



