4 



THE INDIA RUBBER \VORLD 



[October i, 1905. 



ent. The final process is the dissolving of the resin from the 

 extracted guiti by means of an alkaline solution or wood al- 

 cohol. 



Patent No. 741,260 is for a process of refining such crude rub- 

 ber. This apparatus consists of a macerator jacketed for steam 

 or hot water connected with an evaporator and also a refriger- 

 ator. This is fitted with corrugated sleeved rollers for stirring 

 the gum under treatment, and is constructed for a charge of 

 about 400 pounds of crude gum. Into this wood alcohol is 

 poured. The agitator is then put in motion, steam admitted 

 to the jacket, and the macerator brought to a temperature of 

 122" F. The vapor from this is conducted to the refrigerator 

 for recovery. In 20 minutes the saturated alcohol is also drawn 

 off from the evaporator into the refrigerator and recovered, the 

 rubber almost pure being left m the macerator. 



The inventor in speaking of the extraction of resins from gum 

 taken from the Guayule says that there is 63 per cent. of rubber 

 in the'gum that he extracts, and 22 per cent, of resinous matter, 

 and that this treatment with alcohol or a mixture of alcohol 

 and naphtha is designed to extract this resin, the resultant 

 mass being a pure rubber like gum. 



» * * 



COAHUILA Mining and Smelting Co., Limited, have engaged 

 in the production of rubber from Guayule. They have a smelter, 

 atV'iesca, state of Coahuila, Mexico, which has been shut down 

 under contract with the American Smelting and Refining Co., 

 and in this they have installed a plant with a capacity for pro- 

 ducing daily one ton of (iuayule rubber, and there is sufficient 

 power plant to increase this capacity to 4 tons of rubber per 

 day, which production they hope to reach by next May. The 

 company have obtained from the state of Coahuila a concession 

 which exempts them from state taxes and carries other privi- 

 leges. They have contracted for a supply of Guayule shrub lor 

 four years and disposed of their product at the present ca- 

 pacity for two years, through German and American houses. 

 The rubber factory is only one department of the company's 

 business, which is engaged in mining in Coahuila and three 

 other Mexican states. The officers of the company are H. T. 

 Ambrose (New York), president of the .\merican Book Co.. 

 president; F. ]. Llewellyn of the American Bridge Co., vice 

 president; Walter E. Parker, general manager; and Albert S. 

 Valdespino, superintendent in charge of the rubber depart- 

 ment. 



* * * 



International Guayule Rubber Co., September 7, 1905, un- 

 der New York laws; capital $50,000. Incorporators: Thomas 

 M. Righter, Mt. Carmel. Pennsylvania ; John A. Rielly. Shen- 

 endoah. Pa., B. St. John Hoyt, No. 170 West seventy-fifth street, 

 New York. It is understood that the company control some 

 Mexican patents for the extraction of rubber from the Guayule 

 plant. 



NEW TRADE PUBLICATIONS. 



THE Peerless Manufacturing Co. (New York) issue 

 their Catalogue No. 70, devoted to Mechanical Rubber 

 Goods. This catalogue is even more complete and more at- 

 tractively got up than any of its predecessors, some of which 

 have been commented upon very favorably in these pages. A 

 Peerless catalogue may be depended upon to contain some- 

 thing new in each edition, and the one before us does not 

 prove an exception to the rule. [SH' X 8j^". 137 pages.] 



The Gutta-Percha and Rubber Manufacturing Co. 

 OF Toronto, Limited, issue a catalogue of their " Maltese 

 Cross " Interlocking Rubber Tiling, illustrating a wide va- 

 riety of applications of this desirable floor covering, including 



views of a number of interior views of Queen's Hotel, Toronto, 

 lately equipped with it. These are followed by a number of 

 designs in color, indicating that a variety in color schemes is 

 now available in rubber which no manufacturer would have 

 thought possible at a period in the industry within the mem- 

 ory of most important houses in the trade. [6" X 9''- 40 

 pages.] 



The Hartford Rubber Works Co. (Hartford, Connecti- 

 cut) issue a new brochure on the distinctive features of the 

 " Hartford Perfected " Dunlop automobile tire. It is ade- 

 quately illustrated and prices are given. There is also matter of 

 interest on the care of tires. [7H" X S'- 24 pages.] 



G. ct J. Tire Co. (Indianapolis, Indiana) issue, under the title 

 " Reliable Tires," a number of letters of commendation, by 

 widely known automobilists from many parts of the country. 

 [7}4 ' X lo". 17 leaves.] 



The Pure Gum Specialty Co. (Barberton. Ohio), in their 

 Catalogue C, illustrate and give prices of syringes, water bot- 

 tles, finger cots, gloves, ice bags, air beds and cushions, nipples, 

 bath brushes, face masks, and other like articles. It is an in- 

 teresting and handsome catalogue. [9" X 6'. 32 pages.] 



Kohmescher & Co. (Cincinnati, Ohio) issue the ninth edi- 

 tion of their catalogue of Fine Rubber Goods for the Drug- 

 gists', Surgical, and Stationery Trade. As we have noted in 

 connection with former editions of this very complete cata- 

 logue, it is always up to date, enumerating a number of articles 

 not listed in it hitherto. The catalogue is excellently illus- 

 trated, rendering it a convenient guide to buyers who may be 

 at a distance from any rubber store. [5 X?!*". 160 pages.] 



J. Lonstroff, proprietor of the Fabrique Genevoise de 

 Caoutchouc (Geneva, Switzerland), issues a series of trade lists, 

 headei with h\sPiix Cottrattt No. i, devoted to hygienic, sur- 

 gical, and toilet articles, of about which 900 are noted, most 

 of them being illustrated. The same factory produces me- 

 chanical goods, footwear, sporting goods, toys, balloons, dress 

 shields, tobacco pouches, and waterproof clothing, which are 

 described in separate lists. [6ig' X 9/4". 86 pages.] 



ALSO RECEIVED. 



HodCmMAn Rubber Co., New York. = [Duplex Folding Bath Tubs.] , 

 4 pages. 



James Barker, Iron Foundry and Machine Works, Philadelphia= 

 Barker Massage Machine. 20 pages. 



The Parker Pen Co , Janesville, Wisconsin — The George S. Parker 

 Fountain Pen. 16 pages. 



Crandall Packing Co. , Palmyra, New York = Catalogue and Price 

 List. Steam, Ammonia, and Hydraulic Packings [and Belting, Hcse. 

 and other Rubber Goods]. 72 pages. 



The Trent Tile Co., Trenton, New Jersey=Rublain Flooring. 4 

 P'ges. 



INDIA-RUBBER GOODS IN COMMERCE. 



EXPORTS FROM THE UNITED STATES. 



OFFICIAL statement of values of exports of manufactures 

 of India-rubber and Gutta-percha, for the month of July, 

 1905. and for the first seven months of five calendar years : 



