820 



THE INDIA RUBBER WORLD 



[Septemkb 1, 1920. 



announces the new edition of the "Encyclopaedic van Neder- 

 landsch-Indic" in four volumes. 



The Yarnall-Warinc Co., Philadelphia, Pennsylvania, 

 has just issued a well illustrated and highly informative 16-page 

 bulletin, free on request, descriptive of Yarway blow-off valves, 

 that will be read with particular interest in certain states where 

 boiler laws require the use of either two valves or a blow-off 

 valve and a cock on each individual blow-off line. 



tem. The crane handles coal from car to storage and from 

 storage to the traveling coal crusher where it is crushed and 

 discharged into stocker. Coal may also be handled direct 

 from cars to crushers, if desired. The crane is electrically 

 operated, alternating current being used. The man-trolley 

 is equipped with two drums which are operated by friction 

 clutches and brakes, this arrangement contributing to maxi- 

 mum speed of operation. A two-cubic-yard bucket of the four- 

 line type is used. (McMyler-Interstate Co., Cleveland, Ohio.) 



THE EDITOR'S BOOK TABLE. 



•THE ORGANIZAT^O^f OF INDUSTRIAL SCIENTIFIC RESEARCH." 

 By C. E. Kenneth Mees, D.Sc, Director of the Research Laboratory, 

 Eastman Kodak Co.. Rochester, New York. First Edition. McGraw- 

 Hill Book Co., Inc., New York and London, 1920. (Cloth, 173 

 pages, S'/i by 8!4 inches.) 



IN HIS PREFACE the author states that this book is intended as 

 a contribution to the study of the best methods for organ- 

 izing industrial research work and of the conditions under 

 which such work should be conducted. 



The author discusses the various types of research labora- 

 tories; their position in an industrial organization; their in- 

 ternal organization; the staff, building and direction of the 

 work; and a chapter on the design of a research laboratory 

 for a special industry in which costs of operation are dealt 

 with. The book closes with a classified bibliography on the 

 subject of research laboratories and an index of authors and 

 (Of laboratories, which will doubtless be found of much 

 .assistance. 



•"A GERMAN-ENGLISH DICTIONARY FOR CHEMISTS." BY 



Austin M. Patterson, Ph.D. First Edition, John Wiley & Sons. Inc., 



New York. Chapman & Hall, Limited, London, 1917. (Flexible 



leather. 316 pa?es, 5 by 7 inches.) 



English-speaking chemists generally will be grateful to 



■Doctor Austin for valuable aid to them as available in this 



■most convenient work. Particularly helpful features are the 



excellent introduction and the use of Roman in place of 



•German text. 



f COAL HANDLING CRANE FOR RUBBER MILLS. 



The coal-handling crane at the plant of the Firestone Tire 

 & Rubber Co., Akron, Ohio, is of a semi-gantry type, one 

 leg running on the ground and the other running along the 

 roof of the building. The crane is equipped with a traveling 

 man-trolley. .All of the operations of the crane are coii- 



A ROTARY SPRINKLER OF VARYING RADIUS. 



A new type of lawn or garden sprinkler which (its any hose 

 connection has been developed, illustrated herewith. It is oper- 

 ated by means of the pressure of the water required for 

 sprinkling, and will spray an area ranging 

 from 15 to 80 feet in diameter. There is 

 a wheel with blades like a propeller, which 

 cuts the water into drops as it revolves, 

 while the sprinkler head rotates in a circle. 

 The area sprinkled is regulated by turning 

 the faucet. The gears are enclosed, 

 inmg in an oil bath, and there are no 

 separate parts to get out of order. The 

 machine is finished in gold bronze and car- 

 ries the manufacturer's guaranty for one 

 year of satisfactory service, or price will be 

 refunded. (Double Rotary Sprinkler Co., 

 Coca Cola Building, Kansas City, Mis- 

 souri.) 



A "MERMAID" BRUSH. 



In the India Rubber 

 World of January 1, 

 1919, there was illus- 

 trated and described the 

 "Maid-of-America" hair 

 brush, with removable 

 rubber cushion in which 

 the bristles were vulcan- 

 ized. The manufacturer 

 is now putting out a similar brush called the "Mermaid," which 

 operates in the same way. (Monarch Brush Co., Troy, New 

 York.) 



Double Rotary Sprinkler. 



H ■ . , ' .\T THE Firestone Plant. 



trolled from the operator's cab attached to this man-trolley. 

 In connection with this equipment a traveling coal crusher 

 is also furnished. This crusher travels along the top of the 

 building directly over the hopper leading to the stoker sys- 



INTERESTING LETTERS FROM OUR READERS. 



TREUGOLNIK NOT RUN BY GERMAN CAPITAL. 



To THE Editor : 



TAE.AR SIR: On behalf of my principals, the Russian Ameri- 

 L' can India Rubber Co. "Treiigolnik" of Petrograd, I wish 

 to take exception to a statement namely: "The "Treiigolnik" 

 company, before the war, was mainly run by German capital," 

 which appeared in the last paragraph of an article written on 

 l)age 533 of the May 1, 1920, issue of The India Rubber 

 World, as the statement is not only without any foundation, 

 whatsoever, but, appearing in your journal, it is likely to have 

 a detrimental effect on the interests of the "Treiigolnik" com- 

 pany. 



From the fact that the article in question was written entirely 

 in the interests of the "Treiigolnik" company's largest com- 

 petitor, it is possible that such incorrect information was given 

 you for a definite purpose. 



I sincerely trust that you will see your way clear to publish 

 a contradiction in one of your ne.xt issues. 



Stinton J. Jones, 

 For The Russian American India Rubber Co. 



London, England. 



