June 1, 1919.] 



THE INDIA RUBBER WORLD 



issuance of Regulations ■»;, will be 

 visions of Regulations ■4". 



A form of "Proof of Exportation" 

 of Regulations 47 was submitted by the comi 

 compared by the Department with suggested foi 

 Associations and others and an approved form 



n accordance witli the pro- 



the provisions of Article 43 



mittee. This form will be 



i submitted by Exporters' 



11 be adopted and issued. 



The committee cannot emphasize too strongly the fact that the Internal 

 Revenue Department refuses to be committed by any informal opinions 

 given in conference, and this special report of the committee is made 

 only for the purpose of giving all members of the Association the benefit 

 of information in the possession of the committee. While the report 

 may serve to prepare the members of the Association for possible sup- 

 plemental rulings, no member should, without fully realizing the risk, 

 proceed in regard to the excise tax upon any other basis than is found 

 in the law itself or in Regulations 47 as they now stand. Regulations 47 

 in their present form furnish the only authoritative interpretation of the 

 law as far as the Treasury Department is concerned, and no alteration is 

 authoritative unless made by a formal written Treasury Decision. 



The committee will supplement its reports to the Association as the 

 occasion may demand. 



10 and 11 



ASSOCIATION NOTES. 



The Druggists' Sundries Division will meet c 

 ai the Vale Club, New York City. 



W. J. Kelly, chairman of the Special Liberty Loan Com- 

 mittee, volunteered to solicit subscriptions froin the rubber 

 trade for the Salvation Army drive of last month. While 

 no specific sum was allotted, the rubber industry responded 

 generously. 



A COURSE FOR RUBBER FACTORY FOREMEN. 

 The Mechanical Rubber Co., Chicago, Illinois, is conducting a 

 three-month course in production methods, for the benefit of 

 rubber factory foremen. This course is under the direction of 

 the Business Training Corporation of New York, and is edited 

 by John E. Calder, M. E. There are six text-books and a 

 series of six lectures delivered at intervals. The course is 

 intended to give each foreman new ideas and advanced instruc- 

 tion as to the best and most efficient manner of handling his 

 daily production problems. 



TESTING OF TEXTILE MATERIALS. 



nPHE METHODS for examining and testing fibers and tex- 

 ■'■ tile fabrics as conducted at the Bureau of Standards, are 

 given under the above title in Circular of the Bureau of Stand- 

 ard^ No. 41 (third edition), from which the following abstracts 

 are taken : 



TENSILE STHENGTH AND LOAD-STEETCH RELATIONS. 



These determinations are made by tests upon single strands 

 or upon skeins. The instruments employed in these tests are 

 of the dead-weight type, 

 and stress is uniformly 

 applied by motor or by 

 water pressure. All tests 

 are performed under 

 standard atmospheric 

 conditions, the yarn or 

 tissue being wound at 

 least three times around 

 a %-inch drum securely 

 held at each end. The 

 testing length between 

 center of drums is six 

 inches and the pulling 

 jaws travel at the rate 

 of 12 inches per minute. 



DSY WEIGHT. 

 Bone-dry weighings are 

 made in the oven illus- Qven for Drying Test Specimens. 



FOR Making Dry Weighings. 



trated. A motor-driven 

 fan circulates the atmos- 

 phere in the oven to in- 

 sure uniformity of heat. 

 The sample to be weighed 

 is placed in one of 

 ten small baskets carried 

 by a chain. This chain 

 may be turned by a 

 wheel outside the oven, 

 bringing each basket suc- 

 cessively into such posi- 

 tion that it may be trans- 

 ferred to a hook sus- 

 pended from one end of 

 the balance by means of 

 another hook operated 

 from the outside of the 

 drying-oven. 

 FABRICS. 

 Some of the determinations made upon fabrics are: weight, 

 tensile strength and load-relations, percentage of fiber composi- 

 tion, thread count, yarn number or size, folding endurance, etc. 



FOLDING ENDUBANCE. 



Some materials are subjected in actual use to considerable 

 folding. In such cases, folding endurance tests will show to 

 what extent they may be expected to resist deterioration from 

 this cause. 



The folding test is 

 made upon a special- 

 ly constructed inachine 

 which registers the num- 

 ber of alternate folds the 

 specimen endures before 

 breaking under a given 

 constant tension. The de- 

 termination is made in 

 the standard atmosphere 

 upon a test strip 15 mm. 

 (19/32-inch) wide and 

 95 mm. (3H inches) 

 long. The number of 

 double folds made before 

 rupture occurs is re- 

 ported. By a double 

 fold is meant that the sample is folded fiat upon itself, then 

 opened and folded at the same point upon itself in the reverse 

 direction. A constant tension of 1,000 grams (35 ounces avoir- 

 dupois) is applied during the folding operation and the double 

 folds are made at a rate of 200 per minute. 



M.^CHI 



! FOR Testing FoLDI^ 

 Endurance. 



WASTE MATERIAL DEALERS MOVE TO NEW YORK. 



About June 1, 1919, the headquarters of the National Associa- 

 tion of Waste Material Dealers, formerly at 185 Summer street, 

 Boston, Massachusetts, will be established in a suite of offices 

 on the eleventh floor of the Times Building, Times Square, New 

 York City. The formal opening, with a reception for members 

 will take place on Monday, June 16, which is the day preceding 

 the regular quarterly association meeting. 



Charles M. Haskins, the secretary, has severed his connection 

 with the "Commercial Bulletin," and will henceforth devote his 

 entire time to the association. Plans are under way looking to 

 the establishment of a mercantile credit service which will be 

 of great service to members. 



Buy War Savings Stamps- 

 and your own success. 



JuiLD FOR American prosperity 



