Specification of William Darlow and Philip William Seymour : magnetic compound.

  • Darlow, William.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Darlow and Philip William Seymour : magnetic compound. Source: Wellcome Collection.

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    Dariow <§f Seymours New Magnetic Compound. Invention for “ A New Magnetic Compound applicable to the Manufacture of Articles suitable for Curative and other Beneficial and Useful Purposes,” upon the condition (amongst others) that we, the said William Darlow and Philip William Seymour, our executors or administrators, by an instrument in writing under our, or their, or one of their hands and 5 seals, should particularly describe and ascertain the nature of the said Invention, and in what manner the same was to be performed, and cause the same to be filed in the Great Seal Patent Office within six calendar months next and immediately after the date of the said Letters Patent. NOW KNOW YE, that we, the said William Darlow and Philip William 10 Seymour, do hereby declare the nature of our said Invention, and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement (that is to say) :— Our Invention of “ A New Magnetic Compound, applicable to the Manu¬ facture of Articles suitable for Curative and other Beneficial and Useful 15 Purposes,” relates to the production of a magnetic compound or substance composed of gummy, resinous, bituminous, or other suitable adhesive substance and magnetisable or magnetic particles, such particles being kneaded or worked into the adhesive substance in such a manner as to adapt the com¬ pound for its application to various curative and other purposes. The 20 proportions of the magnetic element of the compound to the adhesive substance employed therein will be varied to suit the purpose to which it is intended to be applied; in some cases a greater degree of elasticity and flexibility will be required than in others. In carrying our Invention into effect we prefer (when the same is applied 25 to the manufacture of flesh brushes and other similar uses in which friction is produced) to employ india-rubber or its compounds owing to the high electrical qualities of these materials or substances, thereby combining elec¬ trical effects with magnetic action ; and, under all circumstances, we prefer to combine steel dust with the above materials or other adhesive substances as 30 the medium for producing the magnetic action of the compound. When it is required to produce an elastic or flexible compound we employ gums, india- rubber, gutta percha, or their compounds, and combine with them as large a proportion of the magnetic element as the composition will bear without becoming what is termed “ rotten.” The proportions that have been found 35 most suitable for this kind of compound are from one and a half to one and three quarters pound of the magnetic element to each pound of the gum or