Improvements in apparatus for warming or keeping warm children's or invalid's food and the like, applicable also for vapourizing disinfectants / [Henry Dunsford].

  • Dunsford, Henry.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in apparatus for warming or keeping warm children's or invalid's food and the like, applicable also for vapourizing disinfectants / [Henry Dunsford]. Source: Wellcome Collection.

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    5 10 15 20 Uate of Application, 10th May, 1888 Complete Specification Left, 11th Feb., 18S9 Complete Specification Accepted, 16th Mar., 1889 A.D. 1888,10th May. N° 6991. PROVISIONAL SPECIFICATION. Improvements in Apparatus for Warming* or Keeping Warm Children’s or Invalids’ Food and the like, Applicable also for Vapourizing Disinfectants. I, Henry Dunsford, of 42, and 44, Manesty Lane, Liverpool, in the County of Lancaster, Wholesale Druggist, do hereby declare the nature of this invention to be as follows:— This invention has for its object an apparatus for heating or for retaining the heat of children’s or invalids’ food. It is also applicable for the purpose of disinfecting a sick room, when the disinfectant employed is to be heated and vapourized. In carrying out the invention, I provide a casing, preferably cylindrical, provided at the upper end with wire gauze. A hole or holes is provided in the casing to admit sufficient air for combustion, and also to allow a ray or rays of light to illuminate the apartment. I prefer to employ an ordinary night light, as I find the heat is quite sufficient to retain the heat in food already warmed. A spirit lamp, gas jet, etcetera may, however, be employed, if desired. One of the features in the invention is the employment of the wire gauze, which, while allowing heat to pass through it, also retains some of the heat and collects the smoke or soot, which would otherwise collect on the vessel containing food or liquid. The gauze is preferably rather fine, and the hole or holes for admitting air not very large, so that only just sufficient air for the purpose is admitted, and allowed to escape through the gauze, otherwise the night light may burn away too fast. In my model apparatus I have made the diameter of the casing rather more than twice the diameter of the hole. Dated this 9th day of May 1888. WM. P. THOMPSON & Co., Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.