February i, 1908.] 



THE INDIA RUBBER WORLD 



153 



and point protector. C. A. F. Gregson and G. Rayner» Norfolk, 

 19,201 (1906). Tire cover with tread formed of layers of jute or hemp, 



treated with emery and shellac solution, and solutioned together and 



covered with rubber. J. Blumfield, Beccles. 

 *i9,22i (igo6). Tire rim with outwardly flaring flanges. E. Chaquette, 



New RochcUe, New York. 

 19,224 (1906). Spring wheel with elastic tire. J. Slee, E^rlestown. 

 19.230 (1906). Detachable tire carrying rim. Count G. Szechenyi, 



Vienna, Austria. 

 i9i329 (1906). Pneumatic tire with puncture preventing band of leather. 



J. Lelong, Lx)ue. France. 

 19.337 (1906). "Twin" elastic tires spaced apart to minimize dust rais- 

 ing. E. E^ston and G. Franklin, Southampton. 

 19,342 (1906). Nonskid studs for tire treads. G. W. Beldam, Ealing. 

 19.438 (1906). Fabric with zigzag wire embedded for tire treads. 



J. Byron, Liverpool. 

 .[Abstracted in the Illustrated Official Journal, December 2"^^ 1907.] 

 19.590 ( 1906). Pneumatic tire. I. Weening, London. 

 19.598 (.1906). Bolt for securing pneumatic tires to detachable rims. 



Baron V. Barreto, Marlow. 

 19,648 (1906). Heel protector. W. H. Davis, Canton, Cardiff. 

 19,671 (1906). Pneumatic tire with a series of parallel air tubes inflated 



by one valve and branches thereof. J. Waite, LTielmsford. 

 *i9i7iS (1906). Spring wheel with pneumatic and rubber cushioned hub. 



C. F. Marohn, Milwaukee, Wis. 

 19,722 (1906). Heel protector. F. W. Schroeder. London. 

 19,894 (1906). Utilization of waste rubber. [See The India Rubber 



World, January i, 190S — page 107. 1 T. Gare. New Brighton. 

 19.905 (1906). Studded tread band of balata belting for pneumatic tires. 



P. F. Wiley, Boscombe. 

 19.95s (1906). Pump valve. W. H. Lewis. New Brighton. 



THE FRENCH REPUBLIC. 



Patents Issued (With Dates of Application). 



377.937 (May 2, 1907). E. W. Baker. Attachment of tirts to wheels. 



377.976 (May 21). P. Buthion. Product for rendering asbestos in- 

 destructible. 



377,992 (May 21). F. A. Ellis. Tire. 



378,006 (May 22. A. F. Bucchini. Multiple air tubes for tires. 



378,048 (May 23). E. Guibert. Elastic wheel. 



_378,i68 (May 25). J. L, Villard. Cover for tires. 



378.191 (May 28). G. Plasse. Elastic wheel. 



378,236 (May 29). J. Desoucher. Elastic wheel. 



378,261 (May 30). A. Latimer. Cover for tires. 



378,282 (May 30). Denning and Foster. Protective tread for tires. 



378,309 (April 6J. E. J. L. Broux. Sectional pneumatic tire. 



378,315 (May 6). Perez and Castelltort. Tire protector. 



378,251 (Aug. 4, 1906). Rouxeville. Process for reclaiming rubber. 



378,209 (May 28, 1907). J. W. V. Mason. Machine for vulcanizing and 

 finishing rubber shoes. 



378,35: (May 18). Doolittle. Attachment cf tires to wheels. 



378.399 (June i). L. Sellier. Tire protector. 



378,588 (May 31). H. Guerin and Jais. Elastic tire. 



378,603 (June 7). Silverwood. Attachment of tires to vehicles. 



378,600 (June 7). Societe J. Hausmann et fils. Nipple for infant's bottle. 



378,691 (June 11). Baglin. Protective tread for tires. 



378*73 1 ( I ""*^ 12) . P- Buchillet. Tire protector. 



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

 tained from K. Bobet, Ingenieur-Conseil, 16 avenue de Villiers, Paris, at 

 50 cents each, postpaid. J 



tests of non-deflation tire tubes. 



NEW RUBBER RECLAIMING PROCESS. 



THOMAS GARE, of New Brighton, England, is out with 

 a patent for reclaiming rubber by a combined mechan- 

 ical and chemical process which consists in powdering vul- 

 canized scrap, softening it in boiling resin, feeding it through 

 a tubing machine, the die of which consists of a number of 

 small orifices [The late Robert Cowan had a patent on this 

 for cleansing reclaimed rubber] and doing the whole thing 

 within 5V2 minutes, the mass entering the tubing machine as 

 a semi fluid and emerging as completely regenerated rubber. 



Empire State Tire Co. (Buffalo, New York), the incorpora- 

 tion of which was noted in The India Rubber World October 

 i> 1907 (page 26), have the New York rights for the Green- 

 wald tire patents. They have erected at Nos. 198-200 Terrace, 

 Buflfalo, a complete tire repair plant, and plan to install repair 

 plants for garages or repair stations. They have secured as 

 superintendent Lemon Greenwald, formerly of Akron, Ohio. 



FOR several months the mechanical branch of the Asso- 

 ciation of Licensed Automobile Manufacturers, through 

 its tire com.mittee, has been endeavoring to cooperate with 

 tire makers toward the elimination of annoyances from tire 

 troubles in the nature of blowouts and punctures. Many 

 interesting tests have been made for elasticity and resiliency 

 of various rubbers used in tires, and extensive research has 

 been given to the cause of blowouts and punctures. 



It has been discovered that in a large percentage of the 

 blowouts the cause was from heat generated inside of the 

 tube from friction, which caused an expansion of the tube 

 itself, so that when the tire came in sudden contact with a 

 sharp stone or other obstruction there was not enough space 

 tor contraction in the tube, and necessarily something had 

 to give way. thereby causing the blowout. 



Henry Souther, metallurgical expert for the association, has 

 just completed a remarkable test for heating, and his report 

 shows conclusively that the time is near when the chances 

 for blowouts will be minimized. The test was made with a 

 non-deflation tube and two other ordinary makes of tubes, 

 to ascertain if possible the comparative heating properties. 



To obtain accurate measurements of degrees two thermom- 

 eters were made and inserted by drilling holes through the 

 wooden felly and metal rim of the wheel and using a steel 

 case opened on the lower end in which the thermometer was 

 inserted. The case was shaped like a large valve, similar to 

 the valves on ordinary tubes with a cap projecting through 

 the felly, so that by removing the cap the thermometer, which 

 had been placed in contact with the tube, could be seen and 

 the degrees of heat recorded. 



The test was made on a run from the Engineers' Club to 

 Long Island City and thence to Patchogue, L. I., a distance 

 of 68 miles. The conditions of the road in many places were 

 such that high speed was possible and 48 to 5-2 m''es per hour 

 for six or eight miles was attained. The average speed on the 

 trip was 36 miles. Mr. Souther's report mentions that a cer- 

 tain non-deflation tube named by him nfns cooler than ordi- 

 nary inner tubes.' His report reads: 



"Just how much cooler this would be in hot weather, I am 

 not prepared to say, but judging from the laws of heat the 

 percentage of increase above atn^osphere ought to hold, and 

 that is the reason this method of summarizing had been used. 



"That is to say, in hot weather with the temperature of 

 70° F., the increase would be for the regular inner tube 60 

 per cent, or 42^ F., and making a total temperature of 112° F., 

 whereas, from the results of my experiments I find an in- 

 crease in the temperature of 45 per cent, in the deflation 

 tube, making it only 101.8° under the same conditions. 



"The reason for the cool running of this non-deflation tube 

 is very obscure. It is a well known fact to all familiar with 

 the work done by tires that the more material in the tire the 

 more work is done in moving over the road under a given 

 load. In this non-deflation tube there is more material than 

 in the simple tube, caused by double walls and the plastic 

 material between the double walls, which make it non-deflat- 

 ing. Consequently many skilled in the art have believed that 

 this tube would run hotter. I consider that belief erroneous, 

 in view of the tests which I have just made." 



The secretary of agriculture of the United States said re- 

 cently in a public address that for years his department had 

 been distributing camphor trees, and that thousands of trees 

 were growing in the southern and Pacific coast states. Camphor 

 had been made successfully from some of these, on an experi- 

 mental scale. A manufacturing concern using $500,000 worth 

 of camphor yearly was forming a 2,000 acre grove of camphor 

 trees in Florida, with a view to making their own camphor. 



