Decisions Relating to Patents

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U .S. Circuit Court.--Southern District of New Work. YOUNG et al. v. FOERSTER. PATENT STONE SAWING MACHINE. Cox, J. A machine purchased of the complainant, the patentee, by the employer of the defendant,w as repaired and its construction somewhat changed oy the defendant in his capacity as an employe of the purchaser. Held that the purchaser was 'at liberty to repair and improve it within the limits of his contract, and that so long as the identity of the machine was not destroyed, its owner had the right to discard useless parts and add new ones which might improve its action. One who has a license to use the whole of.a machine does not become an infringer by the use of a part only. To expel mosquitoes, take of gum camphor a piece about one-third the size of a hen's egg, and evaporate it by placing it in a tin vessel and holding it over a lamp, taking care that it does not ignite. The smoke will 800n fill the room and expel the mosquitoes, and they -will not return,e ven though the windows should be left open all night.

SA Supplements Vol 27 Issue 703suppThis article was published with the title “Patents” in SA Supplements Vol. 27 No. 703supp (), p. 385
doi:10.1038/scientificamerican06221889-11238esupp

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