262 



THE INDIA RUBBER WORLD 



[May I, 1908. 



26.471 (1906). Snicke generator for detecting punctures in tires. C. 

 Long, Glamorgan. 



26.480 (1906). Solid tire made of rubber continuous or in segments. 

 Hartridge Tire Syndicate and A. W. Torkington, London. 



26.501) (1906). Solid tire with the base grooved to facilitate applying it 

 to a rim, designed to hold it by compression. A. B. Lindemann, Luding- 

 hausen, Germany. 



26.5^j (1906). Detacliable rim for tires. J. Henderson, Bruton, Somer- 

 setshire. 



26,531 (1906). Resilient tire formed of rubber core, groups of springs, 

 and a cover of rubber and fabric. H. Gilardoni and H. Leriche, Paris, 

 France. 



26-53J (1906). Heel protector. H. Rosenthal, Budapest, Hungary. 

 •26.653 (1906). Resilient tire. J. S. Gushing, Norwood, Massachusetts. 



26.699 (1906). Solid rubber tire with tubular metal studs to prevent slip- 

 ping. C. Brawn, London. 



26,722 (1906). Tire with rubber studs to prevent slipping. E. W. Cole- 

 man, Twickenham. 



^6.731 (1906). Method of vulcanizing rubber in tire repairs. W. Frost 

 and H. Frost & Co.. linden. 



[Abstracted in the Illustrated Official Journal, March 25, 1908.] 



27,031 (1906). Tire cover or protective band in which gutta-percha or 



balata is used. J. E. Audsley, of R. & J. Dick, Ltd., Glasgow. 

 27,062 (iqo6). Puncture proof tire cover. H. and P. H. Thorne, Leeds, 



and W. Blamires, Huddersfield. 

 27.073 (1906). Pneumatic tire covers, driving belts, and the like, made 



in part of asbestos treated with balata. W. Watson, Thornton Heath, 



Surrey. 



27,091 (1906). Non slipping tire cover. E. Sabatier and R. Ruwet, Brus- 

 sels, Belgium. 



27,169 (1906). Pneumatic tires prevented from slipping and puncture by 

 metal pieces secured over the tread by side chains. G. Stockdale, 

 Arnold. 



27,179 (1906). Tire built up of blocks of rubber. A. S. Morrison, London. 



27.236 (1906). Tire tread formed of blocks of rubbered canvas set on 

 edge. British, Insulated and Helsby Cables, Ltd., Prescot. and J. John- 

 stone, Helsby. 



27.349 (1906). Method of weaving rubber proofed fabrics for use in 

 waterproof garments. J. and H. Weinberg. Manchester. 

 •27,369 (1906). Composite elastic tire. S. Hey. Keighley (Mitchell Punc- 

 tureless Pneumatic Tire Co., Swampscott, Massachusetts). 



27,382 (1906). Protected non skid cover of chain mail. S. A. Marazgani, 

 Palermo, Italy. 



27,437 (1906). Detachable tire rim. G. Baillie, London. 



27.475 (1906). \'ehicle wheels with re voluble tire segments threaded on 

 the felloes. W. Younger, Brighton. 



27.481 (1906). Tire inflating pump operated by the motor. J. Bacon, 

 Croydon. 



27,485 (1906). Tire puncture preventing band of metal. C. Schwalb, 

 GcKiesberg a/R., Germany. 

 "27,509 (1906). Golf club head formed of a metal shell in which is in- 

 serted gutta-percha or india-rubber. C. T. Thompson, Philadelphia, and 

 F. P. Mitchell, Laurel Springs, New Jersey. 

 "27,516 (1906). Flat sectional molds for vulcanizing rubber hose, belting, 

 and the like. H. Z. Cobb, Chelsea, Massachusetts. 

 27.533 (1906). Chain loops to prevent tires from slipping. E. F. Law, 

 London. 



*27,536 (1906). Metal shield for tires. H. G. Wheeler, Canandaigua, 

 New York. 



27.568 (1906). Method of attaching tire cover to rim. F. Reddaway & 

 Co.. and A. E. Greene, Pendleton, Lanes. 



27,577 (1906). Tire rim with detachable flange. E. P. Proud, Dublin. 



27-585 (1906)' Balata or other band passing round the driving wheel of 

 a vehicle and round a road guide wheel, to prevent slipping. H. Bird, 

 London. 

 27,616 (1906). Rubber substitute composed of gelatin, glycerine, and for- 

 maldehyde. B. Sauton, Paris, France. 



THE FRENCH REPUBLIC. 



Patents Issued (With Sates of Application). 



380,863 (.A.ug. 16, 1907). G. Suchy. Pneumatic tire with multiple air 

 chambers. 



380,876 (Aug. 17). Z. Olsson. Process for the manufacture of an elas- 

 tic material suited for tire tubes. 



3^0,755 (Aug. 10). E. Teste. Protective cover for flasks. 



380,998 (Oct. 25, 1906). J. Guerry. Process of reclaiming vulcanized 

 rubber. 



381,008 Aug. 20, 1907). J. M. Piqucrra. Mold for forming pneumatic 



tires. 

 381,053 (Aug. 21). Zclgien and Nordon. Elastic wheel. 

 381,109 (Aug. 23). A. Bom and J. Lamed. Elastic wheel and tire. 

 380,973 (Aug. 8). 'G. E. Smith. Improvement in rubber shoes. 

 381,166 (July 26). A. B. Shaw. Improvement in pneumatic tires, 

 381,207 (Aug. 19). F. Amoudru. Protective tire tread. 

 381,316 (Aug. 29). C. FalcoTinier. Wheel tire. 

 381.346 Aug. 29.) J. Byrom. Tire protector. 

 381.384 (July 17). E. Kempshall. Pneumatic tire. 

 381.537 (Sept. 5). C. Lang and Bidault. Elastic tire. 

 381,544 (Sept. 6). Delahaye & Co., Ltd. Method of repairing tires on 



demountable rims. 

 381.624 (Sept. 7). T. C. Martin. Tire protector. 

 381,661 (.Sept. 9). T. Sloper. Process of forming pneumatic tires. 

 381,666 (Sept. 10). J. Blanc. Pneumatic tire. 



381,695 (Sept. 10). F. Fuchs. Pneumatic tire. 



381, 702 (Sept. 10). R. Moine and G. Raillot. Leather cover for pneu- 

 matic tires. 



381.708 (Sept. 11). L. G. Parant-Pinel. Pneumatic tire, 



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

 tained from R. Bobet, Ingenieur-Conseil, 16 avenue de VilHers. Paris, at 

 50 cents each, postpaid.] 



COPPER PRICES FOR TWENTY-THREE YEARS. 



"T^HE figures which follow are obtained from a table com- 

 *■ piled by The Wire and Telephone Co. of America 

 (Rome, New York), showing the \-ears 1884 to 1907, in- 

 clusive. The table herewith gives for each year (i) the 

 average for January; (2) the average for December; (3) the 

 highest average for any month; (4) the lowest average for 

 any month; and (5) the average for the year: 



Ye.\r. Jan. High. Low. Dec. Average. 



18S4 15 .15 .11^ AlJs .141/32 



1885 11^ .11% .11 .HJ4 .11166 



1886 iiH .12 ioy^ .12 .111458 



1887 ii->^ .17 .10 .17 .11323 



1888 i6yo .17;/, 16 17'yi .1625/32 



1889 1714, .17% .II .14^4 .137395 



1890 14^ .17 .i4>4 .16 .1513/16 



1891 15 -15 -n .11 .133/32 



1892 II .12^ -loJi .12K .11 5/8 



1893 125^ .121/S .g-K -10^8 .1025/32 



1894 10 .10 .gH .9Js .095416 



1895 10 .12 .9-5^ .10^4 .1013/16 



1896 10 .135^ .10 ■t^^f .10979 



1897 11(8 .12 .lOli .II .II 1/3 



1898 11;-^ .13 -iiyi .13 .12 1/6 



1899 15 .iSVa .15 .i6f4 .17802 



1900 16% .17 .i6'4 .17 .16656 



1901 i6'-^ .17 .14"^ .i4'/,< .16729 



1902 ii-)-s; .12^ .115^ .iif-i .12135 



1903 121/0 .I5'4 .12'X .I2'/2 .13791 



1904 1234 .151^ .i2ya .I5j's .1325 



1905 15V2 .19 -15^^ -19 .16093 



1906 i8j4 .23% .i8;4 .23^2 .19812 



1907 25'4 .26 .13.5^ .I3J4 .21177 



THE RUBBER-KNOBBED TIRE. 



IT is true that rubber knobs wear off in time, but so would 

 anything wear if put to the severe strain automobile tires are 

 subjected to; but the wearing off of the knobs on the tread does 

 not wear the tire, does not mean that the tire has lost its non- 

 skid qualities, for when the center or tread has worn smooth 

 the side knobs come into play, and perform their duty so well 

 that a rubbed-knobbed tread tire is a non-skid tire until it is 

 entirely worn out, after which it can be re-treaded and is as 

 gpod as new. If you will follow along a sand road behind a 

 metal-studded tire, you will observe how it throws the sand out 

 from under the tires as it grips the earth, and if you will dis- 

 mount and examine the roadbed you will find it has cut into 

 the sand, and left a track similar to that made by a heavy article 

 being dragged along. Now follow the rubber-knobbed if you 

 please, and you will note the absence of dirt being scooped up 

 and thrown out behind the tires. .Again dismount and look at 

 the road, and you will find the imprints of each little knob as 

 perfect in the sand as though they had been pressed there in 

 a careful manner. This will prove to you, beyond the question 

 of a doubt, that the rubber knob is more perfect, is more per- 

 fect in its action, more satisfactory as to results, and by far less 

 injurious to the Voadbed. .-Xnother feature of the rubber knob 

 is that it is less liable to puncture than any other type, 

 as the flexible rubber of the knobs will throw off 90 per cent, 

 of the nails or pieces of gears one ordinarily jacks up, and which 

 in nine cases out of ten would puncture an ordinary tire. — Motor 

 Talk (London). 



