112 GOODYEAR ON GUM-ELASTIC. 



embarrassments were not owing to the solvents that were 

 used in the manufactm'e, but to adhesiveness being an inherent 

 property of the gum. The stock again dechned, until the man- 

 ufacture was completely abandoned by the company, about the 

 time the writer first went to Roxbury. 



Several years subsequent to this time, this machine, with 

 Mr, Chaffee's patent for it, was purchased by the writer. 

 Machinery of this description, for manufacturing without sol- 

 vents, has now become of great importance, and is almost indis- 

 pensable for the economical and successful manufacture of the 

 heavier kinds of goods made by the vulcanizing process. 



In the winter of 1837-38, the inventor re-commenced the 

 manufacture of shoes with better success than that which at- 

 tended his experiments at New Haven. He then invented a 

 new method of constructing shoes, for which a patent was 

 granted him, which patent was disposed of in connection with a 

 license for curing them by the acid gas process.* 



in the summer of 1838 two licenses were disposed of, one for 

 piano-forte covers and table-cloths,f another for carriage-cloths; J 

 both of these were for the use of the acid gas in connection with 

 the solarizing process. The origin of the first named process 

 has been stated, that of the latter may here be noticed. 



In the summer of 1838 he became acquainted with Mr. 

 Nathaniel Hayvvard, of Woburn, Mass., who had been em- 

 ployed as the foreman of the Eagle Company at Woburn, 

 where he had made use of sulphur by impregnating the solvent 

 with it. It was through him that the writer received the first 

 knowledge of the use of sulphur as a drier of gum-elastic, 



Mr. Hay ward was left in possession of the factory, which was 



* This patent and license were purchased by J. W. Clark, Esq., of Boston, and Charles Jackson, 

 Esq., of Providence, who established a manufactory at Providence, where the business has been 

 extensively and successfully prosecuted until the present time, under the firm of Isaac Hartshorn 

 and Company. 



t Messrs. Luke Baldwin and John Haskins, who established a factory at Lynn, Mass., for the 

 raanufacture of cloths and table-covers. This establishment was afterwards removed to Roxbury, 

 where it was continued until Mr John Haskins engaged in the first manufacture of letter bands 

 and elastics, by the vulcanizing process, under a license from the inventor. 



J This was purchased by Mr. Luther Clark, of Northampton, Mass., where the manufacture 

 was established, and discontinued about a year afterwards. 



