Specification of Richard Kelly Geldard : preparations of infusions.

  • Geldard, Richard Kelly.
Date:
1860
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Richard Kelly Geldard : preparations of infusions. Source: Wellcome Collection.

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    Geldard’s Improvements in the Preparation of Pharmaceutical Infusions, cfyc. NOW KNOW YE, that I, the said Richard Kelly Geldard, do hereby declare the nature of my said Invention, and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement in writing, and on reference to the accompanying 5 Drawings, that is to say:— This Invention is intended principally for the purpose of facilitating the infusion of pharmaceutical ingredients so as to obtain a more perfect infusion, and in less time than by the method and apparatus hitherto in use, but with slight variations the same process and apparatus are equally applicable for the 10 purpose of making infusions of tea, coffee, and other ingredients. The apparatus which I propose to employ for the above purpose consists of a pan or vessel of a convenient form for cleansing, and less in height than it is in diameter, formed of block tin or other suitable material (pure tin hardened with antimony or silver being preferred), and provided with a handle and a lid 15 or cover. In the interior of this pan or vessel, and near to the top of the same, are two sieves or strainers made of perforated metal or earthenware, or of other suitable perforated material or fabric. The ingredients to be infused' are placed between the two sieves or strainers and cold water is poured into the pan or vessel until the ingredients are covered. Heat is then applied to 20 the pan or vessel by means of a gas stove or otherwise, until the water is raised to a temperature of two hundred and twelve degrees ; the pan or vessel is then removed, and enveloped in felt or other non-conductor of heat for the space of about five minutes; the pan or vessel is then placed in an open vessel, and if the infusion require to be cooled, cold water is poured on the lid so as to . ■ • * ' • 25 accelerate the cooling operation. It will be evident that for making an infusion of tea or coffee this cooling operation is neither necessary nor desirable. These three several operations are for the most expeditious process, but when extreme haste is not required, the first and last operation may be dispensed with, and boiling water poured in the usual way on the ingredients * SO placed between the perforated or other strainers, the vessel having on the envelope of non-conducting material; this is the second operation, and is suitable for tea or coffee making. In order that my said Invention for “ Improvements in the Method of and Apparatus for Making Pharmaceutical and other Infusions ” may be perfectly 35 understood, I have annexed hereunto a Sheet of Drawings representing, for the sake of illustration, two views of the apparatus which I propose to employ for making pharmaceutical infusions, and have marked the same with figures and letters of reference corresponding with those in the following explanation thereof.