THE INDIA RUBBER WORLD 



lOCTOBER 1, 1913. 



of the manufacturer's guaranteed mileage was realized the 

 tires were worn out. They were then replaced with 5-inch tires 

 both front and rear and these were in service considerablj' more 

 than a year, giving the guaranteed mileage. 



In one case where it was necessary to supply a new wheel 

 to a l}4-ton truck which was equipped with 3V2-inch tires, a 

 wheel with a 3-inch tire was substituted and the mistake was 

 not noticed by the purchaser until the new tire began to wear 

 more rapidly than the others. .'Xt the end of about 4,000 miles 

 the 3-inch tire had worn down to the steel base, while the 

 others were still in good condition. This is probably one of 

 the best examples of the results of inadequate tire equipment 

 that could be supplied from actual experience. 



In still another case where it was found advisable to enlarge 

 the size of the tires, the increase in mileage, compared with the 

 increase in the tire size, was about in the ratio of 3 to 1. 

 The original 36 x 4 rear tires showed a mileage of 4,513. When 



these were increased to 36 x 5, the mileage reached above 

 7.600, showing a 25 per cent, increase in size of tire with nearly 

 70 per cent, increase in the mileage. 



The following table shows the results in a number of in- 

 stances where a slight increase in the size of the tire equipment 

 has shown a much greater increase in the mileage obtained. 

 These figures were only recently completed by a well-known 

 tire manufacturer, the observations extending over a period of 

 from three or four months to about two years. In each case 

 the rear tires were of the dual tread type. It will be noticed 

 in this summary, as in all cases mentioned above, that a slight 

 increase in the size of the tires means an enormous increase 

 in the service. From the averages of these figures it will be 

 seen that the increase in service compared with the enlargement 

 in equipment, is in the ratio of almost 4 to 1. It is self-evident, 

 therefore, that the additional service received more than oflfsets 

 the increased cost of the larger equipment. 



TIRE EQUIPMENT. 



, ' , 



Original. Present. 



TRLXK OPER.\TOR. , * ^ , " ^ 



Front. Rear. Front. Rear. 



Isley Held Co., New York. City 34x4 36x4 34x5 36x5 



A. Finkenberg, New York City 34x3H 34x3^ 34x4 34x4 



H. C. & A. I. Piercy, New York City 36x4 36x5 



J. T. Castle Ice Cream Co., Irvington, N. V 36x4 36x4 36x5 36x5 



J. T. Castle Ice Cream Co., Irvington, N. Y 36x4 40x4 36x6 40x5 



Newark Rivet Works, Newark, N.J 34x4 36x4 34x5 36x5 



Patton Paint Co., Newark, N. J 34x4 36x4 34x5 36x5 



C. Trefz. Brewer>-, Newark, N. J 34x4 36x4 34x5 36x5 



J. W. Greene, Jersey City, N. J 36x5 40x4 36x5 42x5 



Wilkinson, Goddes & Co., Newark, N. J 36x5 40x4 36x5 42x5 



Wilkinson, Goddes & Co., Newark, N. J 34x4 36.\4 34x5 36x5 



Swift & Co., New Brunswick, N. J 34x4 36x4 34x5 36x5 



H. Muhs Co., Paterson. N. J 40x4 42x5 



Chelsea Storage Warehouses 34x4 36x4 34x5 36x5 



Jere Skidmore & Sons. New York City 42x6 .... 42x7 



Average Percentage Increase in Tire Widths and Mileage .... 22 24 



58 



123 



AMAZON RUBBER SHIPMENTS FOR 1912 AND 1913. 



MR. PICKERELL, the United States consul at Para has sent 

 the state department some statistics compiled by one of the 

 large exporting companies of Brazil which show that during 

 the crop year 1912-13 there were shipped from the .Amazon 

 Valley 94,525,065 pounds of rubber, or some 4,500,000 pounds 

 more than in the preceding season. Summarized, the exports 

 for 1912-13 by ports of shipment and the total exports for each 

 of the four preceding crop years were as follows; 



Ports. Fine. Medium. Coarse. Caucho. Total. 



Pounds. Pounds. Pounds. Pounds. Pounds. 



From Para to — 



United States. .. 9,310,415 1,787,730 10,072,695 4,603,095 25,773.935 



Europe 15,037,190 1,587,175 3,034,775 5,883,870 25,543,010 



From Manaos to — 



United States... 9,311,475 1,695,455 2,896,035 2,601,475 16.504.440 



Europe 10,174,855 1,863,315 2,451,505 6,349,620 20,839,295 



From Iquitos to — 



United States... 57,695 4,920 31,415 78,445 172.475 



Europe 1,794,510 167,250 661,185 2,571,745 5,194,690 



From Itacoatiara 

 to- 

 United States... 9,260 330 6,615 5,620 21.825 

 Europe 232,505 28,165 153,785 60,940 475,395 



Total to — 



United States.. 18,688,845 3,488,435 13,006,760 7,288,635 42,472,675 

 Europe 27,239,060 3,645,905 6.301,250 14,866,175 52,052,390 



Grand total — 



1912-13 45.927,905 7.134.340 19,308,010 22,154,810 94,525,065 



1911-12 45.931.105 7,839,635 19,808,530 16,378,140 89,957,410 



191011 37.873,210 6,318,450 15,095,050 14.640,895 73,927.605 



1909-10 43783.800 7,720,585 19,006,050 15,668,250 86,178.685 



1908-09 40,428,365 6,750,555 19,336,740 17,797,915 84,313,575 



The consul reports: "It is the opinion of merchants who 



should know that, by reason of the low prices at present pre- 

 vailing for rubber, many latex gatherers are leaving the 

 woods, and that few new workers are being found to take 

 their places. Unfortunately, there are no statistics available 

 to support this statement; but it is not improbable that there 

 is some truth in the rumor. What effect it will have on the 

 coming crop it is impossible to say at this writing (July 24, 

 1913); but this labor shortage and the fact that it is becom- 

 ing increasingly difficult to find capitalists willing to finance 

 advances, forces one to the conclusion that the 1913-14 harvest 

 V II be smaller than the 1912-13 crop." 



TROPICAL GOODYEAE AGENCY. 



In addition to its Canadian and European representation, the 

 Goodyear Tire & Rubber Co. is represented and its tires dis- 

 tributed by agents at each of the following centers: Cuba, Porto 

 Rico, the Philippine and Hawaiian Islands, Brazil, Uruguay, 

 Barbadoes, Trinidad, Jamaica, the Republic of Panama and at 

 Ancon in the canal zone. 



AUTO HORN BULB WITH RUBBER TOP. 



An English company is manufacturing an automobile horn 

 bulb which in reality is a metal funnel with a curved rubber 

 cap fastened on tightly over the top. A tap against the cap 

 blows the horn, and when the cap, by reason of inuch use, 

 becomes worn out. it can be removed very easily and another 

 put on in its place. 



