136 



THE INDIA RUBBER WORLD 



[January i. 1909. 



*l7,98o (1007). Spring wheel with tread of elastic stud. A. Ibanez, 



New \ork. 

 17.992 (1907). Pneumatic tire tread. E. Jeannerot and P. Perrin, Lyons, 



France. 



391 



391 



391 



391 

 391 

 39I: 



39" 

 391 



391 



391 

 391 

 391 

 39t 



392 

 391 



392 



392 

 392 



392 



39^ 

 392 

 392, 

 392 

 392, 



392, 

 392, 



.235 (June 



cycles. 

 ,307 (Tune 



hub. 



191 (June 



ijoat beds. 



THE FRENCH REPUBLIC. 



Patents Issued (with Dates of Application). 



1 5. 1908). Michclin et Cie. Tire for bicycles and motor 



■3). 



E. Butterlin. Wheel with pneumatic cushion around 

 J. Leibler. Sponge rubber cushion for the inside of 



,416 (May -27). 

 .434 (June 20). 

 ,499 (June 20). 



G. Boladens. Tire. 

 Hodgson. Elastic tire. 

 R. Labruyere. Process for recovering the solvents 



in the machines for coating rubber coated fabrics, as well as in all 



similar or dissimilar machines used in other manufacturing lines. 



516 (June 20). P. L. Darolles. Elastic tire. 



547 (June 22). B. A. Godek. Rubber protective tire tread. 

 ,436 (June 6). The County Chemical Co., Ltd., and Hill. \'ulcanizer 



for tire repairs. 

 ,685 (May 29). J. C. Casanova. Reinforced air tube for tires. 

 .709 (June 26). H. Swales. Wheel tire. 

 •843 (July 2). Flajollet. Elastic tire for wheels. 

 ,710 (June 26). P. Gaedke and SchiifFer. Means of attaching rubber 



heels. 

 ,091 (July 7). J. S. Cushing. Elastic tire. 

 ,895 (Sept. 9, 1907). A. Dabon. Process of attaching leather lo 



rubber. 



,021 (July 4. 1908). Michelin et Cie, 



mobiles and other vehicles- 

 ,iir (July 7). Fairhurst and Eastman. 

 ,141 (July 9). 

 ,064 (July 6). 



rubber scrap. 



166 (June 29). 

 ,167 (June 29). 

 2d6 (July 10). 

 .216 (July 10). 

 163 (June 25). 



Wheel and pneumatic for auto- 



Cover for pneumatic tires. 

 J. Berliner. Vulcanizer for tire repairs. 

 T. Care. Process for the manufacture of articles from 



A. Guerin. Cover for pneumatic tires. 

 Hassencamp and Boerner. Elastic tires. 

 H. Musclow. Air tube for tires. 

 M. J. Stavro. Pneumatic tire. 

 M. de Cleves. Construction system for bicycles in 

 which the frame is only on one side of each wheel, which allows of 

 replacing the pneumatic tires without unscrewing any nuts. 

 -33 fjuly :o). Collin and Huovila. Tire with multiple air tubes. 

 324 (July 15). A. Clieradame. Elastic wheel with pneumatic tire. 



[Note. — Printed copies of specifications of French patents may be ob- 

 tained from R. Robert, Ingenieur-Conseil, i6 avenue de \'illiers, Paris, at 

 50 cents each, postpaid.] 



THE MADERO GUAYULE FACTORIES. 



■ I 'HE Messr.s. Madero have often been mentioned in The India 

 ■*■ Rubber World as owners of vast tracts of guayule lands 

 in Mexico and also as very large producers of guayule rubber. 



In connection with Mr. Francisco Del Hoyo and Mr. H. V. 

 Hernandez they estimate that they have sointhing like 100,000 

 tons of guayule shrub on their own estates. 



Through the courtesy of their New York representative, Mr. 

 Ed. Maurcr, a view of one of their rubber factories, situated at 

 Parras, is here shown. This factory has a monthly output of 

 130 tons of rubber, while the combined production of all the 

 eight Madero factories reaches a total of 350 tons of rubber per 

 montli, all of which ingoing into consumption as fast as it can 

 be shipped. The Madero interests operate the following factories : 



Compania Explotadora Coahuilense, S. .-V., Parras. 



Salvador Madero & Co., S. e. C, San Tiburcio (near Vanegas). 



Fa'brica de Las Delicias, San Pedro. 



Fabrica de Hule Australia, Cuatro Cienegas. 



Compania Ganadera de La Merced, Torreon and Gomez Palacio, 

 operating three factories. 



Their eight factories are running at present day and night to 

 their full capacity and, as the Maderos never have made a prac- 

 tice of storing guayule but only produce what has actually been 

 sold, it shows how well their guayule rubber has been received 

 by the manufacturers in America and in Europe. 



At the present rate of producing guayule rubber it is esti- 

 mated that the first cutting will probably all be made into rubber 

 within the next three years, but young fields are rapidly growing 

 up which probably will furnish a new supply in from four to 

 five years. 



Very little coal is used in the factories of the ^ladero com- 

 panies, the bulk of the fuel being the refuse guayule after the 

 rubber has been extracted. The larger factories have their own 

 machine shops, and in connection with them are quarters for the 

 workingmen. Physicians are in attendance at the factories and in 

 the guayule fields. 



The Brazil court at the Olympia Rubber Exhibition included 

 a large specimen of Para rubber. .\ niemljer of the Exhibition 

 Committee presented a £$ note to be awarded to the visitor 

 who most nearly guessed the weight. The actual weight, 559 

 pounds, was guessed by a lady in Kensington. The pclcc referred 

 to was well worth attention on account of its size, but one 

 which was despatched from Bolivia to the United States in 

 1893, for the Chicago World's Fair, but arrived too late for 

 that occasion, weighed I,i8r pounds. It was exhibited for a 

 long time in the window of the Goodyear's India Rubber Glove 

 Manufacturing Co., on Brnadwav, New York. 



F.>lCtokies of Compani.\ Explot.\dora Co.'^huilense, S. a., P.vrras, Mexico. 



