Improvements in the manufacture of medicinal capsules, and in means and appliances for effecting the same / [William Oppenheimer].

  • Oppenheimer, William.
Date:
1892
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in the manufacture of medicinal capsules, and in means and appliances for effecting the same / [William Oppenheimer]. Source: Wellcome Collection.

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    Oppenheimer s Improvements in the Manufacture of Medicinal Capsules, f'c. COMPLETE SPECIFICATION. Improvements in the Manufacture of Medicinal Capsules, and in r Means and Appliances for Effecting* the same. I, William Oppenheimer, late of 1 and 3 Sun Street, Finsbury, London E.C., but now of 14 Worship Street, London E.C., Merchant, 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:— * My invention relates to the manufacture of the medicinal capsules described in 5 the Specification No. 13,221, dated August 23rd 1890, and the object of my present invention is to effect improvements in the manufacture of such capsules, and in charging the same with exact quantities of medicine. As described in the said recited Specification, the outer casing of the capsules consists of two shallow spherical segments, united together, such casing being 10 formed of solvent materials such as gelatine, gum, or any other suitable substance (hereinafter referred to as gelatine) to which flavoring may be added for imparting an agreeable taste to the mouth on their passage to the throat. The drugs are enclosed in this casing, completely isolated from the air, so as to prevent their therapeutic value being affected by atmospheric influence. 15 In carrying out my invention, I take a perfectly flat plate of convenient dimensions. This plate may be made of glass, metal, or other suitable material. Upon this plate I lay a thin sheet of gelatine. I then form a raised outer edge of metal, wood, or other suitable material, round three sides of the sheet of gelatine; and, resting upon these raised portions, 1 20 place another plate of the same material as the first mentioned plate. This combination forms a narrow trough with an open top. The trough so prepared is then placed in a clamping press, and the two plates are pressed towards each other, in perfectly parallel lines. The trough is then ready to receive the medicine, which is poured into it ; between the sheet of gelatine on the one side and the 25 uncovered plate on the other. When filling with powdered medicine, the trough is shaken, while being filled, in order to cause the medicine to be evenly distributed. The uncovered plate is then removed from the layer of medicine, and a thin sheet of gelatine is laid evenly upon the medicine, which is thus enclosed between two sheets of gelatine. 30 The preparation is then removed from the remaining plate, and placed between two metal matrix plates, having a number of matrices formed in each plate, in exactly corresponding positions to form the two sides of the finished capsules. Raised cutting edges are formed round each pair of matrices, whereby the capsules, with the enclosed medicine, are separated from the remainder of the 35 material, by means of pressure ; a suitable press, of ordinary construction, being used for the purpose. When the capsules are intended to be charged with liquid medicine, one sheet of gelatine is laid flatly upon a suitable surface : the raised edge is formed all round : the medicine is then poured upon the same, and the second sheet of gelatine is , q applied thereto. The further process being effected as herein before described. Having now particularly described and ascertained the nature of my said inven¬ tion, and in what manner the same is to be performed, I declare that what I claim is :— 1. The process of manufacture of medicinal capsules, herein before described 45 that is to say, the combination of 2 plates and a sheet of gelatine, the plates being clamped in positions parallel with each other by means of an interposed distance frame, for gauging and securing the accurate distribution of the medicine in the capsules the imposition of a second sheet of gelatine and the cutting and finishing of the capsules in the matrices, substantially as herein before described, 50 / * [• - * •