THE INDIA RUBBER WORLD 



[OcTdBER I. 1920. 



\'ol. 63 



OCTOBER 1. 1920 



No. 1 



TABLE OF CONTENTS. 



Editorials: Pages 



Truckportation and Truck Tires... •• 1 



Rubber Men and Cotton 1-2 



Solvent Naphtha from Oil Shale • ■ 2 



Minor Editorials ■ • 2 



The Economics of Truckportation. 



By Richard Hoadley Tingley — Illustrated 3-6 



Elastic Cord for Airplane Shock Absorbers. 



Illustrated 6-7 



Meeting of the Rubber Division of the American 



Chemical Society 7-8 



Ocotillo Again to the Front. Illustrated 9-10 



The Measurement of Crimp in Yarns and Fabrics. 



By A. X. Gadsby and E. C. Walen. Diagram 10-11 

 Making Rubber Heels for a Hundred Million People. 



By Chester Burnham — Illustrated 12-16 



The Rubber Association of America — Activities of.. 16 



Sixth National Exposition of Chemical Industries.. 16-17 



Crimson Antimony 17-18 



Some Aspects of the Stress-Strain-Curve. By Wil- 

 liam B. Wiegand— Charts 18-21 



Steam Requirements for Vulcanizing. 



By Walter J. Bitterlich— Charts 22-24 



The Manufacture of Dental Rubber. 



By Arthur C. Squires— Illustrated 24-25 



New Rubberized Airship Fabrics 25 



Toron Patents and Products Illustrated 26 



Chemistry : 



What the Rubber Chemists Are Doing 27-29 



Investigations on Different Coagulants. Black- 

 ening of Red Rubber Tubes. Permeability of 

 Rubber to Gases. 



Methods of Analysis 29 



The Defection of Natural Barytes in Litho- 

 pone, etc. Technical .\nalysis of Lithopone. 



Chemical Patents ■ • 29-30 



Laboratory Apparatus ....•■ Illustrated 30 



Machines and Appliances Illustrated 31-32 



Composition Sole Stitching Machine. The G-R 

 Strainer. A New Fabric-Skiving Machine. Steel 

 Platens for Hydraulic Presses. Naphtha and 

 Cement Bench Cans. Crane for Giant Pneumatic 

 Tires. Steel Wire Buffing Wheels. 



Machinery Patents illustrated 32-34 



Molding Inner Tubes by the Pneumatic Proc- 

 ess. Machine for Forming Battery Jars. Ma- 

 chine for Forming Toy Balloon Beads. A Novel 

 Spreading Machine. Other Machinery Patents. 



Process Patents 34 



New Goods and Specialties .•■ Illustrated 35-36 



An X-Raycd (iolf Ball. Quick Repair for Punc- 

 tures. I'ncumatic-Tire Dust Cap. Semi-Stuffed 

 .\ir Cushion. Kubbor-Covered Dye Stick. Miner's 

 Rubber Shoe Pac. Canadian Rubber Heel. A 

 Safety Bottle Cap. The Universal Natural Milker. 

 A Tire Wholcsole. New Hunting Equipment. 

 Moistening Device for Cigars. 



Obituary Record 37 



E. H. Openshaw (Portrait). T. F. McCarthy. 

 M. P. Grace. 



Inquiries and Trade Opportunities , ■ • 



Editor's Book Table 



"How to Make and Use a Small Chemical 

 Laboratory." "Hand- Book of Fire Protection." 



New Trade Publications 



Judicial Decisions • • 



Interesting Letters from Our Readers 



.About a Novi'l Toy Ball. 



American Rubber Trade — News Notes and Personals 



Dividends 



Financial Notes 



Rubber Stock Quotations 



New Incorporations 



Joseph £. Stone Portrait and Sketch 



East and South By Our Correspondent 



New Jersey By Our Correspondent 



Massachusetts By Our Correspondent 



John R. Gammeter Portrait and Sketch 



Ohio By Our Correspondent^Illustrated 



Mid-West. . .By Our Correspondent — Illustrated 

 Pacific Coast. By Our Correspondent — Illustrated 



Ninth Annual Safety Congress of the National 



Safety Coimcil 



Canadian Market for Rubber Goods 



Foreign Rubber News: 



Great Britain By Our Correspondent 



Miscellaneous Foreign Notes 



Norway 



Germany By Special Correspondent 



Scandinavia and Denmark. 



By Special Correspondent 



Tariff News 



Planting : 



Netherlands East Indies 



Straits Settlements 



Malaya By Special Correspondent 



Ceylon By Special Correspondent 



Defects in Plantation Rubber 



Patents Relating to Rubber 



United States. Canada. United Kingdom. Ger- 



. Illustrated 



Trade-Marks 



United States. Canada. Australia. 



Designs 



United States. Canada. 



Markets : 



Crude Rubber 



Highest and Lowest New York Prices 



Amsterdam Rubber Market 



Antwerp Rubber Market 



Singapore Rubber Market 



Reclaimed Rubber 



Rubber Scrap 



Cotton and Other Fabrics 



Chemicals and Other Ingredients 



Statistics: 



Brazil, E.xports from Para, Manaos and Iquitos, 



July, 1920 



Canada, Statistics for, May, 1920 



Cotton Statistics: 



Federated Malay States Rubber Exports 



Java Rubber Exports 



Straits Settlements Rubber Exports 



LInited Kingdom, Statistics for July, 1920 



United .States: 



Crude Rubber Arrivals at Atlantic and Pacific 

 Ports as Stated by Ships' Manifests 



Custom House Statistics 



Imports by Months for 1920 



Exports of India Rubber Manufactures During 

 July, 1920 (By Countries) 



Pages 



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