December 1. 1920 



THE INDIA RUBBER WORLD 



173 



jnder the greatest pressure possible without injury tu the goods, 

 ■vherehy the gas is enabled to impregnate the rubber throughout, 

 ind tlien removing the heat and pressure, causing the gas to re- 

 main imprisoned in the elastic pores of the rubber. — Wilham 

 Edgar Muntz, London, England. United States jiatent No. 

 1.354,123. 



Composition for TRE.\Ti.\n kiurdi'.s matkrial consi.sting of 

 asphalt: a metallic oxide sulphur; a vulcanization accelerator; 

 and a solvent liquid for certain of these substances: — William D. 

 Pardoc, assignor to Thcrmoid Rubber Co., both of Trenton, New 

 Jersey. United States patent No. 1,354,996. 



Imferme.\ble and Non-Hvgroscopic Material coxsisTixn of 

 vulcanized fiber coated with a film of celluloid of acetyl-cellulose 

 firmly adhering to the surface. — Mario .\rosio, Milan, Italy. 

 United States patent Xo. 1,355,586. 



V'fLCANIZED CAOUTCHOfC AND PROCESS BV VVhICH VlLCANIzA- 



tion is effected consisting in incorporating with a caoutchouc mi.x 

 an alkyl substituted thio-urea accelerator having an alkyl group 

 in ortho position and then vulcanizing the mix. — Winfield Scott, 

 assignor to The Goodyear Tire & Kuhher Co., both of .\kron, 

 Ohio. United States patent No. 1,356,495. 



Process for Treating Fibrous Material and the Products 

 ■obtained thereby. Tlie process consists of treating fibrous ma- 

 terial which comprises applying thereto a lubricant dissolved in a 

 volatile solvent, evaporating the solvent and treating the mate- 

 rial so prepared with a vulcanizable plastic, the proportion of the 

 lubricant being relatively small to obviate deleteriously affecting 

 the bond between the fibre and plastic. The lubricant includes 

 castor oil and beeswax. — .Alfred E. Jury, Newark, .\ew Jersey, 

 assignor by mesne assignments to Morgan & Wright, Detroit. 

 Michigan. United States patent No. 1,356,920. 



THE UNITED KINGDOM 



VuLCAXiziNO India Ribber in Soi.rxKJN i.'^ effected by Tin: 

 addition of sulphur and small quantities of nitroso-benzene or a 

 similarly constituted nitroso-hydrocarbon of the cyclic series. In 

 an example, ten grams of rubber and one gram of sulphur are 

 dissolved in 150 grams of carbon disulphide. Six-tenths of a 

 gram of nitroso-benzene is added and the solution shaken. In 

 about 30 minutes the solution sets to a jelly, which, on evapora- 

 tion of the solvent, yields vulcanized rubber, insoluble in the 

 solvents for raw rubber. — S. J. Peachey, 5 Yew Tree Road, Dav- 

 enport. Stockport, England. British patent No. 146,734. 



India Ri'bber. Rubber previous to vulcanization is mixed with 

 a protfid substance, such as glue, which has undergone decomposi- 

 tion or hydrolysis. The proteid after hydrolysis with alkalies, 

 alkaline earths, etc., may be treated with carbon dioxide. The 

 resulting product is preferably mixed with water to form a paste 

 or jelly and incorporated with rubber, which is then dried and 

 vulcanized. The proteid substance may be added to the rubber 

 in \arious proportions from 5 to 30 per cent. — The Goodyear Tire 

 & Rubber Co., assignee of C. W. P)edford, both of Akron, Ohio. 

 British patent No. 146,992. 



Indi.\ Rubber. Filling, coloring, or like materials in powdered 

 form to be incorporated with rubber are mixed with a colloidal 

 solution, for example, glue, which is then incorporated with the 

 rubber, dried and vulcanized. To prevent the glue from harden- 

 ing, pine oil, asphaltic oils, turpentine, glycerine, etc., may be 

 added to the mixture. — The Goodyear Tire & Rubber Co.. assignee 

 of R. C. Hartong, both of Akron. Ohio. British patent No. 

 146,993. 



JAPAN 



.Accelerators for Vulcanization of Ribbfr. .\ solution of 

 sodium or potassium in primary or secondary aromatic amines 

 is used. Ten parts by weight of sodium or potassium in 100 parts 

 by weight of aniline oil, diphcnylamiue or toluidine is especially 

 suitable. — D. F. Twiss and The Dunlop Co. Japanese patent No. 

 34.944. 



OTHER CHEMICAL PATENTS 



GERMANY 



PATENTS ISSUED, WITH DATE OF ISSUE 



NO. 338.610 (Kebrviary 20. 1917.) Method for m;ikinK soft and elastic 

 vulcanized products. Farbenfabriken formerly Friedricb 

 llayer & Co., I-everkusen near Koln-on-Khein. 

 328,611 (February 3. 1917.) Method for the acceleration of vulcani- 

 zation. .Stanley John Peachey, Heaton Mersey, Manchester. 

 England. 

 329,171 (January 3. 1917.) Method for the preparation of synthetic 

 rubber materials which in consequence of lack of viscosity and 

 elasticity can not be easily worked upon cylinders. Akkumvi- 

 latorenf^at)rik .\kt.-Ges., Berlin. 

 329.293 (February 6. 1916.) Method for the manufacture nf a material, 

 similar to leather or celluloid, resisting acids and not soluble 

 in lienzine. Stanley John Peachey, Heaton Mersey, Man- 

 chester, England. 



LABORATORY APPARATUS 



HYDROGEN SULPHIDE GENERATOR 



■ I 'HE apparatus here illustrated is one of the most convenient 

 ■*■ for the purpose of supplying hydrogen sulphide for large 



laboratory or small manufacturing requirements. 



Hydrogen sulphide is essential for 

 many chemical tests and manufacturing 

 operations. The newest application is 

 probably in the Peachey patented proc- 

 ess of cold vulcanization. — Eimer and 

 Amend, 211 Third avenue, New York 

 City. 



CONTAINER FOR ALKAUNE 

 SUBSTANCES 



A container of fibrous material has 

 been patented, the inner surfaces of 

 which are coated with a solution of 

 cellulose ester mixed with a non-solvent 

 and with a material to render the coat- 

 ing when dried less brittle, rendering 

 the surface of the container impervious 

 to the action of moist alkalies. — The Re- 

 search Laboratories Co.. assignor of G. 



W. Howlett, both of Toledo, Ohio. United States patent 



No. 1,355,976. 



Parsons Auto.matic 

 Generator 



^^^ 



AUTOMATIC MEASURING DEVICE 



A very convenient automatic measuring device by A. W. 

 Lorenz, for use in routine analyses to measure reagents with 

 speed and reasonable accuracy, is here shown. 



The bottle can be handled with one hand, 

 and with greater convenience and speed than 

 in pouring from a bottle in one hand into a 

 measuring cylinder in the other. At the 

 same time, measurements are quite as accu- 

 ;ate, and perhaps more so, than rapid 

 measurements from a graduated cylinder. 

 The device will consistently deliver amounts 

 varying by not more than one half a cubic 

 ;;tiitimelcr. 



In using, the bottle is tilted back in the 

 direction of the arrow, to a horizontal posi- 

 tion, when the pipette will fill rapidly, then 

 bring the bottle to its normal position and 

 the pii)ettc will deliver its charge. 



The device is constructed of an ordinary wash bottle and pipette 

 of the desired size. The angles to which the tube of the pipette 

 is bent should be substantially as shown, so that it will lill with- 

 out trapping air, and deliver rapidly. The bulb of the pipette 

 should be as close to the bend on the delivery end as possible, so 

 that undelivered solution may run back in the bulb without trap- 

 ping air bubbles. The small bulb at the end is to prevent the 

 splashing of drops, forced up by air bubbles, while filling the 

 pipette. The bottle should never be quite filled and the air tube 

 leading into it should project above the surface of the liquid at 

 all times. 



Measuring 

 Flask 



