May 1, 1917. 



THE INDIA RUBBER WORLD 



457 



heated for half an hour at a temperature not exceeding 120 

 degrees C. By the action of the solvent the rubber is separated 

 from the leather and sinks to the bottom of the digester in the 

 form of a pasty mass on which a jet of steam is directed, caus- 

 ing evaporation of the solvent. This evaporated liquid is con- 

 densed and collected to serve anew. The mass of rubber is re- 

 moved through the manhole in the lower part of the digester, 

 washed and rolled into sheets. [L. B. Becker. French patent 

 No. 481,851.] 



W.\SHiNG AND Sheeting Different Qu.^lities of Crude 

 Rubber. Plantation rubber and fine Para or wild rubber are 

 mixed together, passed through the washing machine in the usual 

 way and sheeted, water being allowed to flow over the rubber 

 during its passage between the rolls. [Erwin E. A. G. Meyer, 

 assignor to Morgan & Wright — both of Detroit, Michigan. 

 United States patent No. 1,218,949.] 



OTHER PROCESS PATENTS. 



THE TINITED STATES. 

 1,219,833. Method of building cord tires. R. M. Merrinan, Akron, Ohio. 



THE DOMINION OF CANADA. 



174,208. Method of making footwear. Improvement in the art of m.inii- 

 factiiring rubber shoes. Canadian Consolidated Rubber Co.. 

 Limited, Montreal. Quebec, assignee of W. E. Piper, Melrose, 

 Massachusetts, U. S. A. 



THE UNITED KINGDOM. 



16,226 (1915). Preparation of rubber for vulcanization. W. J. Mellersh- 

 Jackson, 28 Southampton Buildings, London. [Boston 

 Rubber Shoe Co., Maiden, Massachusetts.] 



COLOMBIA. 



1,279. Process for waterproofing cloths and skins for rubber ponchos, coats, 

 legginps, shoes, etc. Ramon A. Velez, Urrao, Antioquia, Republic 

 of Colombi?, South America. 



FRENCH PNEUMATIC CUSHION SADDLE FOR BICYCLES AND MOTOR- 

 CYCLES. 



The saddle is composed of a leather-covered cushion, in which 

 is enclosed one or more rubber air chambers of suitable form 

 and provided with air valves. The envelope A is attached to the 



metal support B by 

 screws C. A stout lea- 

 ther plate, strengthened 

 with a sheet of ebonite, 

 fiber or other stifif mate- 

 rial, is inserted between 

 the envelope and the 

 metal support, to pre- 

 vent their contact. 



The air chambers are 

 introduced into the en- 

 velope through a slit D 

 and inflated through 

 valve E. 



When only one / air 

 chamber is used, the concave form shown in the illustration may 

 be obtained by a compartment F, or by small stays placed be- 

 tween the upper and lower walls of the air chamber. [Mariani 

 and Radaelli. French patent No. 481,673 (May 6, 1916.)] 



MISCELLANEOUS PATENTS. 



APPLYING TREAD COVERS TO TIRE CARCASSES. 



IN this invention the outer layers forming the tread and side por- 

 tions of the tire casing are assembled one upon the other, 

 forming a slab that is applied to the casing by a special rolling 



device. 



The carcass is built up 

 with successive fabric 

 plies and the beads ap- 

 plied in the usual man- 

 ner with the exception, 

 however, of the tread 

 and fabric strips form- 

 ing the outer covering. 

 These parts are mounted 

 one upon the other as 

 they come from the cal- 

 ender, in the following 

 order. First comes the 

 cushion strip A, that 

 covers the tread portion 

 and extends part way 

 down the sides of the 

 carcass ; then the breaker 

 strip B and the filler 

 strips C that abut 

 against the edges of the 

 breaker strip, and finally 

 the tread strip D. A pair 

 of rolling devices, comprising two spherical bodies mounted in 

 ball bearings at the ends of two co-acting arms, exert a circum- 

 ferential as well as radial action in rolling the slab on the car- 

 cass. [Ferdinand F. Brucker, assignor to The Miller Rubber Co. 

 —both of Akron. Ohio, llnited States patent No. 1,220,178.] 



Narrow Elastic Webbing. The essential feature of this in- 

 vention consists in sewing one or more rows of longitudinal 

 stitches through the web, after it has been woven with uniform 

 tension on the loom. [Archibald Turner, Leicester, England. 

 United States patent No. 1,221,489.] 



MOTOR AND ACCESSORY- MANUFACTURERS. 



At a meeting of the executive committee, board of directors 

 and credit committee of the Motor and Accessory Manufac- 

 turers last month, a committee consisting of C. W. Stiger, Chris- 

 tian Girl and W. O. Rutherford was appointed to mobilize the 

 resources, both materials and men, of the association for the 

 purpose of cooperating with the National Government in its 

 needs, mainly in supplying component parts of motor cars and 

 trucks, airplanes, motor boats and tractors. 



The idea of grouping the members according to the products 

 they manufacture, having received an approving vote from 95 

 per cent of all the members, a committee was appointed to 

 present a plan for such purpose, consisting of C. W. Stiger, W. 

 O. Rutherford and L. M. Bradley. 



A midseason meeting, an innovation for this association, will 

 be held at Atlantic City, September 12, 13 and 14. Committees 

 were appointed to perfect plans for this meeting. 



PROVIDING FOR WAR DEPENDENTS. 



Tlie desirability of some uniform method of providing for the 

 dependent families of men enlisting in the military and naval 

 forces has resulted in considerable agitation of the matter. ■ Some 

 firms are paying full wages in addition to the army compensation, 

 others are paying the difference between the army wage and that 

 previously received by the employe, while many desire to do the 

 proper tiling but have not decided what that really is. 



Secretary of War Baker has asked the Chamber of Commerce 

 of the United States to ascertain the sentiment of the business 

 men of the country regarding voluntary assistance, and a special 

 committee has been appointed to take care of the matter, of which 

 F. A. Seiberling, president of the Goodyear Tire & Rubber Co., 

 is chairman. 



The National Fire Protection Association will hold its annual 

 meeting in Washington, May 8, 9 and 10. A large attendance is 

 expected. Over 100 new associate members were added in March, 

 and the list was largely added to last month. 



