-c^c©^" 



CHAPTER XL 



HEATED OR VULCANIZED FABRICS. 



Metallic gum-clastic, the name first given by the author to his invention. Why so termed. 

 Printed fabrics bound in volumes. An enumeration of the principal variety of fabrics. Easy 

 combination of the gum with other substances. A table showing the uses of the metallic 

 gum, as substitutes. Instructions for making up the fabrics after they are metallized or vulcan- 

 ized. Elastic compound. Non-ela.<!tic compound. Stayed compound. Drapery. Medicated 

 drapery. Caoutchouc cloths. Sponge. Tufted sponge. Sponge fabric. Fibrous fabrics. 

 Tissue. Vellum. Plated fabrics. Felt, or vegetable leather. Corded fabrics. Barred goods. 

 Knit goods. Shirred goods. Packing. Gritted goods. Napped goods. Embossed fabrics. 

 Ventilated goods. Quilted fabrics. Perforated goods. Card cloths. Coated cloths. Porous 

 fabrics. Indelible goods. Japanned goods. Hollow ware. Cord ware. Wire-work. Wicker- 

 work. Air-work. Elastic cord. Braided cord. Elastic cordage. Covered cordage. Vellum 

 cord. Sponge cord. Hard compounds. Caoutchouc enamel. Caoutchouc ivory. Caoutchouc 

 buck-horn. Caoutchouc whalebone. Caoutchouc deal boards. Caoutchouc veneers. Enam- 

 eled ware. 



Soon after the discovery of the heating or vulcanizing pro- 

 cess, the inventor applied the term metallic gum-elastic to the 

 improved article. After the introduction into England, of 

 the vulcanizing process, the material was there aptly styled 

 vulcanized Indian rubber, although that title is not so truthful 

 as metallic gum-elastic, the name given by the writer, at the time 

 of its discovery in 1839 ; the word " metallic" being adopted in 

 reference to the metallic ingredients, sulphur and lead, one or 

 both of which are commonly used in this manufacture, sulphur 

 with heat having been found, up to this time, indispensable to 

 the process, and lead, or some other metal equivalent to it, being 

 found useful in order to obtain economical or complete results in 

 many cases. In order to give the reader an idea of the quality 

 of these fabrics, some of them have been bound in this volume. 

 Some few copies for public libraries have also been printed wholly 

 upon these fabrics. To have given specimens of them all, would 

 have made the work entirely too bulky, and would be more fitting 

 a pattern card than a publication. In order to distinguish the 

 numerous fabrics made from vulcanized gum-elastic, many of 

 which are quite new, and in order to give the writer's opinion 



