Improvements in fumigants / [Isaac Shimwell McDougall].

  • McDougall, Isaac Shimwell.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in fumigants / [Isaac Shimwell McDougall]. Source: Wellcome Collection.

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    N° 12,406 A.D. 1893 Date of Application, 24th June, 1893 Complete Specification Left, 13th Mar., 1894—Accepted, 14th Apr., 1894 PROVISIONAL SPECIFICATION. Improvements in Fumigants. We, Isaac Shimwell McDougall and James Thomas McDougall, both of 10 Mark Lane in the City of London, Manufacturing Chemists do hereby declare the nature of this invention to be as follows :— Hitherto in the preparation of fumigants the active principles have generallv 5 been absorbed into fibrous materials, such as paper or cellulose, or have been held together by the addition of gums or resins. We find it to be an improvement to use meals, flours or powders possessing binding properties obtained from cereals or other natural growths as binding materials in the production of fumigants and this is what we claim as our invention. 10 Dated this 24th day of June 1893. ISAAC SHIMWELL McDOUGALL. JAMES T. McDOUGALL. COMPLETE SPECIFICATION. Improvements in Fumigants. 15 We, Isaac Shimwell McDougall and James Thomas McDougall, both of 10, Mark Lane in the City of London, Manufacturing Chemists do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:— 20 Hitherto in the preparation of fumigants the active principles have generally been absorbed into fibrous materials such as paper or cellulose or have been held together by the addition of gums or resins. We find it to be an improvement to use meals flours or powders possessing binding properties obtained from cereals or other natural growths as binding materials in the production of fumigants. 25 In carrying out our invention we mix the ingredients or active principles from which the fumes are to be derived with from twenty to forty per cent, of wheat- meal or other meals flours or powders or mixtures of them obtained from cereals or other natural growths. These proportions may be increased or diminished as desired. 30 As examples, a useful fumigant for use on vegetable growths is produced from the following :— Tobacco extract or tobacco powder - - - 40 parts. Middlings obtained in the preparation of wheaten flour - 40 parts. Water - - - - - - -20 parts. 35 Or as a fumigant for disinfecting purposes Flowers of sulphur or sulphur in powder - - - 50 parts. Common quality of wheat flour - - - - 30 parts. Water - - - - - - -20 parts. In both these instances the ingredients and the water are mixed into a dough 40 and then dried by any suitable means when they are ready for employment as [ Price Sd. J
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