Improvements in air-tight provision receptacles suitable for use with sterilizing apparatus / [Johann Weck].

  • Weck, Johann.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in air-tight provision receptacles suitable for use with sterilizing apparatus / [Johann Weck]. Source: Wellcome Collection.

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    N° 10,808 A. I). 1898 Date of Application, 3rd Aug., 1898—Accepted, 29th July, 1899 COMPLETE SPECIFICATION. Improvement in Air-tight Provision Receptacles suitable for Use with Sterilizing Apparatus. 1, Johann Weck, Merchant, of Oeflingen, in the Grand Duchy of Baden, Ger- many, do hereby declare the nature of this invention and in what manner the same may be performed, to be particularly described and ascertained in and by the following statement:— 5 This invention relates to pots and jars of glass or earthen-ware which are used for sterilizing and preserving meat and other articles of food, and more particularly to the lids of flat rimmed glass jars. As represented by the accompanying drawing, the lid is arched in the centre and provided with a flat rim r, which corresponds to the flat rim or flange r of the recep- 10 tacle, and is separated from the latter by a ring cj of india rubber”or other packing material adapted to form an air-tight joint. ° In the process of sterilizing by heat, the air contained in the food receptacle is driven out or rarified and then the lid firmly pressed upon the rim. Subsequently the lid can be removed by introducing a knife blade or other instrument between the 15 packing ring and the glass, so as to admit air. Owing to the arched or bulged shape of the lid, there is no danger of its beirm crushed, which frequently occurs in the case of ordinary glass lids. 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 20 claim is :— A flat rimmed receptacle for sterilizing and preserving articles of food, having a flat rimmed and bulged glass lid, in order to form a tight joint without being liable to fracture, substantially as described. Dated this Third day of August 1898. 25 FAIRFAX & WETTER, Agents, 37 and 39, Essex Street, Strand, London. Redkill: Printed for Her Majesty's Stationery Office, by Malcomson & Co., Ltd.—1899. [Price 8d.]