174 



THE INDIA RUBBER WORLD 



[February i, 1910. 



•18,146 (1908). Pneumatic tire with special thickened tread. 



J. L. G. 



Dykes, Milford, Illinois. 

 18, 445 (1908). Detachable outer rim for pneumatic tire. Societe Franchise 



des Jantes Amovibles Bonhivers, Levallois-Perret, France. 

 18,455 (1908). Pneumatic tire in which a heavy rubber tread is supported 



upon a Dneumatic tube inclosed between side plates. E. Degener 



Boning, Frankfort o/M., Germany. 

 18,462 (1908). Vehicle wheel having inner and outer rims with an inter- 

 mediate thick rubber band. T. R. Bayliss, Northfield, Worcestershire. 

 18,538 (1908). Vulcanizing of pneumatic tires. W. Drury, London, and 



Viscount Grimson, St. Alban's. 

 18,545 (1908). Non-slipping attachment for motor wheels. F. M. Waller, 



Weymouth. 

 [Abstracted in the Illustrated Official Journal, December 30, 1909.] 

 18,594 (1908). Pneumatic tire cover. Viscount Grimson, St. Albans, and 



W. Drury, London. 

 18,608 (1908). Detachable rim for pneumatic tires. H. Jones and W. E. 



Evans, Morristown. 

 18,671 (1908). Spring wheel with inner and outer rim, separated by an 



elastic cushion. P. J. Marmonnier, Lyons, France. 

 18,810 (1908). Non-elastic rubber tire retained by means of nuts which 



engage with the spokes. W. Cunningham, Galston, Ayrshire. 



THE FRENCH REPUBLIC. 



PATENTS ISSUED (with Dates of Application). 



403,120 (May 18). E. A. Garvey and C. A. Garvey. 



403,138 (April 16). Pfeiffer and Whitworth. 



403,207 (May 18). J. G. Tomkins and V. Tomkins. Elastic heel. 



403,393 (Sept. 22, 1908). L. L. Chabrua. Elastic tire. 



403,438 (May 28, 1909). de Bavay. Pneumatic tire. 



403.531 (May 26). Gabriel et Cie. Protector for pneumatic tire. 



Societe anonyme des Pneumatiques aix Samson. Pneu- 



403.631 (June 3). 



matic tire. 

 403,446 (May 28). 



rubber. 

 403.673 (June 4). 

 403.677 (June 4). 

 402,596 (April 30, 



and apparatus 



M. C. Clark. Apparatus and method of devulcanizing 



V. Daussy. Vehicle tire. 

 A. Constantin. Protective tread for tires. 

 1909). Phil. Penin Gummiwaarenfabrik, A. G. 



Process 

 for producing circular striations on the outer surface 

 of seamless rubber pipe. 



402,881 (May 10). H. R. Krastel and G. Ulrich. Auxiliary tire for auto- 

 mobile wheels and their equipment. 



402,996 (May 13). F. Laarman. Process for producing a frothy or spongy 

 elastic structure by the use of a solution of elastic material such as: 

 rubber, cellulose, or their equivalent. 



403,120 (May 8). E. A. Garvey and C. A. Garvey. Pneumatic deadener 

 for veHicles. 



403,138 (May 16). Pfeiffer and Whitworth. Improvements in devices for 

 preventing the bursting of air tubes in pneumatic tires. 



403,218 (May 22). T. Sloper. Improvements relating to anti-skidding 

 surfaces for tires or other rubber articles. 



403,416 (May 27). Societe Industrielle des Telephones. Applications of 

 special dialectics for the insulation of cables or electric conductors. 



403,700 (June 5). H. B. Parham. Shoes for detachable pneumatic tires 



403,723 (June 5). E. Brodin. Pneumatic bicycle tire. 



403,820 (June 8). L. D. Baggs. Automobile tire. 



403,826 (June 8). L. G. Queval. Pneumatic tire with leather tire and 

 multiple air chambers. 



403,849 (June 9). C J. Viviez. Elastic tire. 



403,888 (June 11). L. Perroncel. Process of pneumatic tire manufacture. 



403,942 (June 11). P. Blaubach. Process for the manufacture of linoleum. 



404,023 (June 14). J. A. Florencie. Envelope for aerial vehicles. 



403,917 (Oct. 6, 1908). C. Francois. Elastic tire. 



403,976 (June 12, 1909). Flexible Tire Co., Inc. Tire. 



404,002 (June 14). Cassan. Pneumatic tire. 



404,038 (June 14). G. A. Lyon and Wilson. Protective tread for tires. 



404,049 (June 15). G. C. Taylor. Pneumatic tire casing. 



404,163 (June 18). J. F. Spong. Elastic tire. 



404,021 (June 14). A. Nunes. Leather and rubber tire. 



404,051 (June 15). D. MacArthur and Macintosh. Pneumatic tire. 



404,218 (June 19). H. Long. Removable pneumatic tire for bicycles. 



404,232 (June 19). Continental-Caoutchouc und Gutta-Percha Compagne. 

 Solid rubber tire. 



404,451 (June 25). G. Bonguillon. Leather envelope for pneumatic tires. 



404,307 (June 22). Generale Caoutchouc Co., Ltd. Process for the separa- 

 tion of resins from caoutchouc. 



404,334 (June 23). P. G. Penn. Process for the regeneration of waste 

 vulcanized rubber. 



404,357 (Oct. 16, 1908). L. Turcat and G. Nuth. Process for the prepara- 

 tion of elastic objects from gum lac. 



[Note. — Printed copies of specifications of French patents can be ob- 

 tained from R. Robet, Ingenieur-Conseil, 16 avenue ide Villier, Paris, at 

 50 cents each, postpaid.] 



High Enemas. — Soper, in the Journal of the American Medical 

 Association, concludes from skiagrams taken, that only in rare 

 cases does the so-called high rectal tube pass up into the sigmoid. 

 In abnormalities of the sigmoid it may pass further than seven 

 inches into the rectum before bending on itself, but not in the 

 common case. 



The Late Joseph Davol. 



[The photograph from which the above portrait has been made was 

 preferred by Mr. Davol to that used in connection with his obituary in 

 The India Rubber World, August 1, 1909 (page 386).] 



THE PRICE OF GUAYULE SHRUB. 



In a report on guayule in northern Mexico, the United States 

 consular agent at Torreon says that the value of the shrub has 

 increased steadily from $2.50 gold per ton in the field during 

 the year 1903, to the present price of $25 to $35. At $35 per 

 ton of shrub in the field, calculating a distance of 30 to 40 

 miles to the railroad, the shrub costs the factories laid down 

 at their doors about $75 per ton. The amount of rubber ex- 

 tracted varies from S to 16 per cent., depending on the class 

 of shrub. The high price is caused by the scarcity of shrub on 

 the market; it is estimated that there are not over 8,000 tons 

 of shrub that are not contracted for, and most of this is on 

 two or three properties. Very nearly 200 metric tons are worked 

 up daily in the factories in Torreon and Gomez-Palacio. 



Range of Cotton Prices, 1909. 



[Middling Upland Cotton, New York Cotton Exchange. From the New 

 York Times.'} 



