Specification of James Neville : apparatus for generating steam.

  • Neville, J. (James)
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Neville : apparatus for generating steam. Source: Wellcome Collection.

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    Nevilles Improvements in Boilers or Apparatus for Generating Steam. Patent next and immediately ensuing; and in which said Letters Patent is contained a proviso that if I, the said James Neville, should not particularly describe and ascertain the nature of my said Invention, and in what manner the same is to be performed, by an instrument in writing under my hand and seal, and cause the same to be inroiled in His Majesty’s High Court of Chancery 5 within six calendar months next and immediately after the date of the said Letters Patent, that then the said Letters Patent, and all liberties and advan¬ tages whatsoever thereby granted should utterly cease, determine, and become void, anything therein-before contained to the contrary thereof in anywise not¬ withstanding. 10 NOW KNOW YE, that in compliance with the said proviso, I, the said James Neville, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, is particularly described and ascertained in the explanation thereof now next following (that is to say):— I declare and describe the object and nature of my said Invention or 15 improvement to be, first, to generate or produce an equal quantity of steam by means of a new and improved boiler or apparatus which shall occupy less space than the boilers usually employed for such purpose; and, secondly, to effect a saving of fuel by presenting a greater metallic surface, so formed and arranged that the water in contact therewith may absorb a larger portion of the caloric 20 emitted or produced by the combustion of the fuel employed, likewise by pre¬ venting the escape of any considerable portion of such caloric so long as the intensity or temperature of the same may be usefully applied for the purpose of generating steam; and, lastly, by certain contrivances for rarifying, expanding, or enlarging the volume of such steam after it has been so produced. These 25 objects I effect in the following manner :—Fig. 1 represents the elevation of my said new and improved boiler or apparatus in section; the letters A, A, A, A, Fig. 4, shew the outside cylinder or case, which is made of wrought iron or copper, or of any suitable material; in this cylinder or case is placed the fire¬ place B, Fig. 1 ; this is open in front, with doors 11 and S, Fig. 4, joined to 30 the external cylinder or case A, A, A, A, in which an aperture corresponding with the mouth or open space of the fire-place B is left. C, C, Fig. 1, shewrs the fire bars which divide the fire-place into two equal compartments, the lower one being the ash pit; the fire-place B is so placed in the external cylinder or case A, A, A, A, that the water contained therein may be in contact with the 35 top, bottom, end, and sides of the said fire-place B, as shewn in the section, Fig. 1, and in the ground plan, Fig. 2 ; the bottom of the external cylinder or case A, A, A, A, is closed by a plate bolted or rivetted thereto, and there is a
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