August 1, 1920. 



THE INDIA RUBBER WORLD 



722, 



REPAIRING DEFECTIVE JARS. 



Some jars tliat are dotcctive or those that are rejected can 

 be repaired very easily. If a jar docs not stand up to the elec- 

 trical test, a hole is burned in it. This is caused by some minute 

 particle of dust or metal. The jar can be repaired by filling up 



The machine shall be equipped with a dial or scale so arrang 



as to read 'Jie percentage crimp directly. 



the hole with gutta percha and revulcaiiizing with a small elec- 

 tric vulcanizer. If the jar is warped or under size, it can be 

 straightened and stretched by placing it on the steam-table until 

 it is soft, when it is straightened by forcing it gradually over the 

 core on which it was made. 



PROPOSED TENTATIVE METHODS FOR TESTING 

 TEXTILES.' 



TYPE OF MACHINE. 



1 Te.xtile testing m.\chines shall be of the inclination balance 

 ' • or pendulum type. 



TESTING MACHINE CAPACITT. 



2. In selecting the proper capacity of testing machine for a 

 given fabric, the maximum capacity of the machine shall conform 

 to the following : 



Breaking Strength Maximum Machine 



of Fabric, Pounds. Capacity, Pounds. 



0—25 50 



10—50 100 



20—100 150 



50—200 300 



50—300 400 



250—650 800 



ANGLE OF PENDULUM. 



3. The ma.ximum angle of swing of the pendulum shall be 

 40 degrees from the vertical. 



EATE OF LOADING. 



4. The rate of loading in te.xtile testing machines shall be 

 250 pounds per 1 inch of traverse of the head jaw. 



TYPE OF JAW. 



5. The jaws in textile testing machines shall be of the flat 

 anvil type, both anvils being free to swing on a horizontal axis. 

 The anvil faces shall be smooth and no friction cloth shall be 

 used. The anvils shall be closed at a uniform and invariable pres- 

 sure by means of an eccentric and lever. 



CRIMP. 



6. Crimp shall be defined as the difference in distance between 

 any two points on a yarn in a fabric and the same two points 

 after the yarn has been removed and straightened. This differ- 

 ence shall be reduced to percentage of the yarn length as it lies 



in the fabric. 



OFF-SaUARE. 



7. The percentage of warp crimp minus the percentage of tilling 

 crimp shall be detincd as the off-square of the fabric. 



METHOD OF DETERMINING CRIMP IN TIRE FABRIC. 



8. Threads for crimp test shall be taken from the inside edge 

 of test piece as near the center line of the roll as possible. 

 Threads for crimp test shall be laid out by marking across them 

 in the fabric parallel lines not less than 6 inches apart. An even 

 number of threads not less than four in number shall be taken for 

 each warp and each tilling test. These threads shall be raveled 

 from the fabric after marking, allowing about 2 inches extra on 

 each end of the threads beyond the marks. The threads shall 

 then be straightened by a machine which applies a constant load 

 of 75 grams and the length between the original markings shall 

 then be read in terms of the yarn length as it lay in the fabric. 



•Published by courtesy of the American Society for Testing M.iterials. 

 Report of Committee D-13, read at the annual meeting of the Society at 

 Asbury Park, New Jersey, June 22-24. 1920. 



THE INTERNATIONAL CHAMBER OF COMMERCE. 



The first meeting of the International Chamber of Commerce 

 was recently held at Paris, France. Some 500 delegates from the 

 live countries that participated last fall in the International Trade 

 Conference — Belgium, Great Britain, France, Italy and the United 

 States— were in attendance. An organization was effected and 

 officers and directors elected. Business interests in other countries 

 will be taken into membership later. 



The meeting gave the delegates an opportunity to take up many 

 questions of international business relations. The more impor- 

 tant matters on which action was taken were as follows : 



Restoration of international credit, based on -fixation of the 

 amount and the conditions of payment for the debts of all coun- 

 tries, alHes or enemies ; allied states should agree to fix definitely 

 the amount and conditions of pajTnents according to the stipula- 

 tions in the treaty; avoidance of duplicate taxation of wealth of 

 individuals or organizations in more than one country ; reduc- 

 tion of unnecessary expenditures of local and national govern- 

 ments ; reciprocal international treaties relative to import and ex- 

 port taxes ; an international credit bureau was planned ; national 

 and local chambers of commerce requested to cooperate with their 

 governments to reduce national and local governmental expendi- 

 tures ; governments and banking, commercial and industrial as- 

 sociations in all countries urged to cooperate with the Interna- 

 tional Chamber and with each other to reduce importation of non- 

 essentials by countries whose exchanges are depreciated, and to 

 increase exportations from such countries ; endeavor to obtain 

 the cooperation of labor to prevent delay in the turn-around of 

 ships, delay between ships and trains, and delay in transportation 

 by rail ; restriction upon countries whose exchanges are depre- 

 ciated issuing foreign loans ; a reconstruction special committee 

 to study the exchange situation ; inducement of foreign invest- 

 ments in home countries ; encouragement of tourists through re- 

 moval oi unnecessary restrictions ; facilitation and simplification 

 of passport procedure; committee to investigate the mischievous 

 use of trade names and of misleading indications; common 

 nomenclature for customs tariffs of the allied nations : revoca- 

 tion of import arid export prohibitions as soon as internal condi- 

 tions of each country will allow : petition to the Board of Di- 

 rectors to establish a central bureau for international statistics 

 covering production with forecast of output and probable needs 

 of each countr>-; utilization of hydro-electric power, develop- 

 ment of measures for the use of mineral fuel scientifically and 

 economically, and development to the utmost of research in the 

 extraction of coal and oil resources of the world. 



The full meetitig expressed an opinion that Germany had not 

 demonstrated an intention to fulfill its obligations to the .•\llics, 

 as agreed in the Treaty of Versailles. Allied governments were 

 urged to tolerate no further delay in the carrying out of the treaty 

 agreements. 



The next meeting of the International Chamber will be held 

 in London, England, next June. Temporary headquarters hav 

 been established in Paris. The location of the permanent head- 

 quarters is left to the Board of Directors. 



L'.NUER THE TR.XnE .X.\ME 'SWEET RuBBER CeMEXT NAPHTH.^," a 



solvent is being offered to the rubber trade that is said to give 

 excellent ser%'ice in the manufacture of rubber cement. The 

 product is refined entirely from Bradford. Pennsylvania, crude 

 oil. There is no mixture of any kind. It has a very sweet odor, 

 an initial boiling point of 112 degrees F. and a final boiling point 

 of 326 degrees F. 



