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THE INDIA RUBBER WORLD 



[September 1, 1911. 



NEW TRADE PUBLICATIONS. 



DYERLEY & SONS (Cleveland, Ohio), manufacturers of 

 *-^ Byerlyte asphalt, have just issued four very attractive and 

 interesting booklets on asphalt and its various uses, with par- 

 ticular reference to the adaptability of Byerlyte products for 

 every purpose for which asphalt is used including rubber com- 

 pounding. 



Central Electric Comp.\ny (Chicago, 111.). A price list and 

 discount sheet for August, 1911, applying to the publisher's 1909 

 catalogue, No. 26, the 88 octavo pages of this publication fairly 

 cover the field of electrical supplies. The amount of matter 

 included necessitates close printing, but care has been taken 

 to make it legible, the e-xcellent arrangement assisting in the 

 attainment of this end. 



T'i'ER Rubber Co. (Andover, Mass.). The new catalogue of 

 the Tyer Rubber Co. leaves little to be desired in respect to its 

 completeness and arrangement. It is, moreover, typographically 

 letter perfect, with full page illustrations, many in color, that are 

 beautifully executed. The catalogue shows a complete line of 

 rubber sundries with their hard rubber accessories, together 

 with many special lines for stationers and surgeons. It is 

 solidly bound in crimson board, the covers being removable for 

 the insertion of supplementary sheets. 



One of the most be.\utiful sample books that has come to 

 our notice is that of J. C. Milne, and covers light-weight artistic 

 proofings in a great variety of colors and shades. There are 

 some 58 triangular samples in the first pages of the book, show- 

 ing various kinds of artistic ornamentation in stripes, plaids and 

 checks. These are on various colors of rubber-surfaced back- 

 ground. Following this are pages showing "colorings for grounds 

 only" in black, blue, slate, tans, maroons, greens, etc. 



B.^NiGAN Rubber Company (Baltimore, Maryland) issue List 

 No. 116 H., covering their "wet weather goods." Its 44 legibly 

 printed pages, 8 x 3J4 inches, describe and illustrate a full line of 

 their "Lion Brand" vv-aterproof garments of all styles, for men, 

 women and children, quoting prices on each article and comment- 

 ing on its quahfications. Attention is also called to the fact that 

 the publishers are the exclusive selling agents for Banigan and 

 Woonasquatucket brands of rubber boots and shoes. 



ASBESTOS RUBBER GOODS. 



■"THE use of asbestos in rubber compounding is as old almost 

 •*■ as the rubber industry itself. It is only in the last few 

 years, however, that it has assumed any great importance. Ger- 

 man, and shortly afterwards, English manufacturers were the 

 first to take it up on any considerable scale. At the present time, 

 however, the Americans are using it freely, chiefly in insulation 

 and mechanical lines. The pioneer in America was the Johns 

 Pratt Co., of Hartford, Conn., who produced "vulcabeston," a 

 hard rubber asbestos for a great variety of electrical purposes. 

 Asbestos is also used in mechanical lines for a variety of steam 

 packings, especially for superheated steam. 



One of the most interesting of the developments of the use 

 of asbestos in rubber compounds was the invention of the lining 

 for automobile brakes. The first liners were of metal. The 

 trouble was, however, that metal to metal in brakes sometimes 

 "freezes." A mixture of rubber and asbestos in the form of a 

 narrow belt, however, not only acted as a most efficient brake, 

 but developed lasting qualities that were remarkable. If we 

 are not mistaken, the Thermoid was the first in the field with 

 this type of brake liner. There are today, however, many others, 

 such as the "I-M Non Burn," the "Sa Best So," the "Moto- 

 bestos," the Multibestos," "Raybestos," etc. 



Patented compounds cannot be considered secret, else why 

 should they be published. As a rule they are chiefly valuable 



for comparison or suggestion. The following show presumed 

 uses for asbestos : 



FOR INSULATION (AMERICAN). 



5 lbs. asbestos. 

 2"/^ lbs. shellac. 

 % lb. coal tar. 



1 lb. oak black. 

 J4 lb. paraffine. 



2 lbs. silicate of soda. 

 1 qt. water. 



1 lb. fir balsam or Burgundy pitch. 

 4 lbs. ground asbestos. 



1 oz. sugar, sorghum, or glucose. 

 Saturated solution of 3 grs. oxalic acid. 



INSULATION MATERIAL (AMERICAN). 



60 lbs. of asbestos (for fire and heat resisting). 



25 lbs. of rubber (for binding material). 

 . 15 lbs. of soapstone (as lubricating material). 



Rubber may be raw or vulcanized, if raw add vulcanizmg 

 material. Mineral wool, fine spun glass, etc., may be substituted 

 for asbestos. Powdered slate or pumice stone or talc may be 

 added with or without the soapstone. 



Insulation (English). 

 25 lbs. of Para rubber. 

 15 lbs. asbestos. 

 4 lbs. sulphur. 



CORE packing (American). 



Core of asbestos instead of rubber. 



In wrapping the core add ground asbestos to the rubber com- 

 pound, apply to the canvass. 



WOODITE or WHALITE PACKING (eNGLISH). 



19 lbs. asbestos fiber. 



19 lbs. asbestos powder. 



Earth wa.x. 



4 1-3 lbs. finely ground charcoal. 



10 lbs. whalebone, ground or shredded. 



40 lbs. Para rubber. 



2J^ lbs. sulphur. 



HOSE and belting ( AMERICAN). 



10 lbs. india rubber. 



2 lbs. ground asbestos. 

 Vulcanizing material to suit. 



NON-PUNCTURABLE tire TREAD (ENGLISH ). 



10 lbs. Para rubber. 

 2 lbs. asbestos. 

 31/2 lbs. litharge. 

 1 lb. lime. 



5 lbs. powdered zinc. 

 12 oz. sulphur. 



HARD rubber FOR SELF-LUBRICATING GEARINGS (eNGLISh). 



14 lbs. plumbago. 

 14 lbs. asbestos. 

 4 lbs. rubber. 

 1 lb. sulphur. 



THE ACHE TERHITORY AND BOLIVIA. 



According to a recently discovered map, dated 1867, the 

 Acre territory belonged to Bolivia. It is said that this fact 

 may lead to Bolivian protests against the Acre treaty of 1870. 

 However, a further report adds that the existence of the map 

 of 1867 having been known to Rio Branco it will not change 

 the aspect of the question. 



