80 



THE INDIA RUBBER WORLD 



[December i, 1903. 



type, as made by The F. B. Shuster Co. (New Haven, Conn.) 

 and shown in the illustrations. As the wire is drawn through 

 the rapidly revolving dies its kinks are subjected to a smooth- 

 ing out or straightening; produced by the alternate centric and 

 excentric pressure of the dies. Oil as a lubricant is applied, a 

 few drops at a time, from a clean rag through which the wire 

 is drawn before entering the machine. By this means a fine 

 finish is given to the wire and the wear of the dies is lessened. 

 The usual speed of the machine in straightening carriage tire 

 wire is about 3000 revolutions per minute. 



IMPROVED OPERATION OF DRY HEAT VULCANIZERS. 



The difficulty of maintaining a uniform distribution of heat 

 in a dry heat vulcanizing chamber has been overcome by an in- 

 vention by Augustus O. Bourn, of Providence, Rhode Island. 

 [United States patent No. 735.059, August 4, 1903.] The re- 

 sult is attained by maintaining an enforced slow circulation of 

 the vulcanizing element (by which is generally meant air) into 

 and out of the vulcanizing chamber. 



The apparatus consists simply of an exhaust fan drawing the 

 hot air from immediately over the steam coil in the bottom of 

 the vulcanizing chamber and returning it to the upper part of 

 the chamber, thus agitating the air throughout the vulcanizer 

 and thoroughly distribuling the heat. It is found practicable 

 to heat the air supply and force it from a single blowing or 

 pumping apparatus into and through a number of vulcanizing 

 chambers without the necessity of using a heating coil in each 

 chamber, as heretofore. By dispensing with the use of heating 

 coils within the chambers there is an increase in the available 

 space for the reception of goods, owing to the absence of the 

 coil ; also, an increase of available space owing to the fact that 

 when a heating coil is employed the excessive radiation of 

 heat prevents the arranging of articles in close proximity to the 



coil. 



ILLUMINATED DIAL GAGE. 



The illustration herewith refers to an illuminated face pres- 

 sure gage, which will prove of great convenience in all power 

 plants, where boilers are employed, where such an instrument 



may be located in a dark place or 

 is required for use at night. A 

 light placed in the opening at the 

 back of the gage (generally an 

 incandescent bulb) gives practi- 

 cally the same effect as an il- 

 luminated tower clock at night. 

 When this device is used there 

 is no chance of an error in locating the position of the indi- 

 cating pointer. The illuminated dial gage is understood to be 

 meeting with much favor among leading engineers, architects, 

 and boiler manufacturers. [Standard Gauge Manufacturing 

 Co., Syracuse, New York.] 



LITERATURE OF INDIA-RUBBER. 



DAMAGE SUIT AGAINST A RUBBER COMPANY. 



WHEN the Diamond Rubber Co., in a spurt of generosity 

 and advertising, put in a "gooseneck " with which to 

 fill automobile tires at its place of business, the manager had 

 no idea that a damage suit would result. But it did. Charles 

 B. Harryman, a salesman, caught his foot in the "gooseneck," 

 fell and broke his leg in two places. He asks $9500 from the 

 city of Denver, the Diamond Rubber Co., and Moritz Barth, 

 owner of the building, and Judge Johnson has decided that all 

 three must stand trial, agreeing with Attorney F. W. Parks, 

 for Harryman, that a jury should have an opportunity to hear 

 the facts as to the responsibility of all parties concerned. — 

 Denver (Colorado) Post, November j. 



L' ff£ I'EA AS1ATIQUE. SUITE AUX "ETUDES POUR UNE PLANTATION 

 d'Arbes a Caoutchouc. Par Octave J. A. Collet. Bruxelles : Librairie Falk 

 Fils, 1904. [Paper. 8vo. Pp. 84.] 



THIS is the latest of several publications of the Societe 

 d'fitude Colonials de Belgique from the pen of a compe- 

 tent observer who has devoted much time of late to the prod- 

 ucts of the Malay states, and the second brochure in the series 

 devoted to rubber culture. M. Collet has visited personally the 

 more important plantations of Hevea rubber in the Malay states 

 and Ceylon, noting the methods employed and the results ob- 

 tained, and his work is of value as a trustworthy record of what 

 has been done, and of no little interest in indicating the opinion 

 of the author that the so called " Par£ rubber " may be expect- 

 ed to yield better results under cultivation in Asia than in its 

 natural habitat in the Amazon region. Eighteen excellent 

 views from photographs represent the Hevea trees in various 

 stages of growth under cultivation. 



There is in press at Manila a report on the work done on 

 India-rubber and Gutta-percha in the government laboratory 

 there, which will form Bulletin No. 7 of that institution. It 

 may be expected to contain the details of a process worked out 

 in the laboratory for the extraction of a chemically pure Gutta- 

 percha, referred to in The India Rubber World of August 

 1, 1903 (page 374). 



IN CURRENT PERIODICALS. 



Le Caoutchoutier de Ceara. [Results of culture in different colo- 

 nies.] = Journal d' Agriculture Ttopicale, Paris. III-25 (July 31, 1903). 

 Pp. 205-206. 



Observacoes Sobre as Arvores de Borracha do Regiao Amazonica (Ob- 

 servations on the rubber trees of the Amazon region) By Dr. J. 

 Huber, chief of the botanical section of the Para Museum =i?i?/*/i>« do 

 Museu Paraense, Para III- 3, 4 (December, 1902). Pp. 345-369. 



Ule's Expedition nach den Kautschuk Gebieten des Amazonen- 

 stromes — IV. By Ernst \Jle.=A r otizbtatt des koniglicben botanischen 

 Gartens und Museums zu Berlin. IV-32 (August 30, 1903). Pp 92-98. 



Rubber Plantations in Mexico and Central America. (A carelessly 

 edited resume' of information in late government reports. ]= The Na- 

 tional Geographic Magazine, Washington. XIV — 11 (November, 

 1903.) Pp. 40S-414. 



Le Caoutchouc en Rhode'sie. By E. De Wildeman. [Based upon 

 the reports of the British South Africa Co. which were reviewed in The 

 India Rubber World, September 1, 1903 — pages 425-426]. Revue 

 des Cultures Coloniales, Paris. XIII-132 (September 5, 1903). Pp. 

 134-136. 



Les Caoutchoutiers de la Region Chari-Tchad [French Africa]. By 

 Etnil De Wl[\dman. = Industrie et Commerce du Caoutchouc, Brussels. I-g 

 (September, 1903.) Pp. 192-193. 



Le Caoutchouc des Herbes. Ey Emil De Wildeman. ^Industrie et 

 Commerce du Caoutchouc et la Guttapercha, Brussels. 1-2 (February, 

 1903). Pp. 75-28. 



Rubber Tapping Experiments in the Botanic Gardens [at Singapore]. 

 —Agricultural Bulletin of the Straits, Singapore. 1 1-8 (August, 1903). 

 Pp. 264 266. 



Une Ferme a Caoutchouc a Ceylan. [Based upon a communication 

 by F. J, Holloway to The India Rubber World, March 1, 1903 — 

 page 192]= Journal d Agriculture Tropicale, Paris. III-27 (September 

 30, 1903). Pp. 273 275. 



Rubbers and Fibers. By J. Cameron, f. l s. [Paper read before the 

 United Planters' Association at Bangalore, on planting results] = 7"/fo 

 Indian Forester, Allahabad. XXIX — 10 (October, 1903). Pp. 475. 



Note sur les Guttas. By Dr. Spire, of the botanical mission to Indo- 

 China. [Relating to plantations in Java and the extraction of Gutta 

 from leaves ~\ = Bulletin P.conomique, Hanoi. VI-17 (May, 1903) 

 Pp. 3 1 5-324. = = Reprinted in Revue des Cultures Coloniales, Paris. 

 XIII-130, 131 (August 5, 20, 1903). Pp. 78-81 ; 106-109. 



