November 1, 1911.] 



THE INDIA RUBBER WORLD 



79 



MORE ABOUT EXCHANGE LISTING. 



'T'O THE Editor of The India Rubber World: In your Sep- 

 ■■■ tember number you had a couple of charts showing the 

 fluctuation of wool and cotton, and the wool chart showed the 

 steadier line. Now, these charts, as a rule, are misleading 

 unless one happens to be familiar with conditions governing 

 the various articles. As you know, we happened to have an 

 abnormally short crop of cotton, along with a boom period, 

 while the production of wool happened to remain fairly steady 

 covering this particular period. 



I enclose chart showing range of values of oleo stearine in 

 New York and prime steam lard in Chicago from January 1, 

 1905, to date. The chart shows the high values on both 

 articles, and both are brought right up to the end of last week, 

 showing the market at the finish at Saturday's figures. You 

 will note that the oleo stearine has been subject to wider 

 fluctuations all the way through. Both articles started at about 

 the same price in January, 1905, and oleo stearine reached the 

 high of 19 cents, while the high on lard was 14.60 cents. This 

 chart shows, what I have maintained, that an article without 

 an official market is subject to wider fluctuation than one with 

 the benefit of an open market. 



Of course, the general public knows very little, practically 

 nothing, about stearine or its range of values, while any one 

 who follows speculative markets at all will be apt to be 

 familiar with the fluctuations in lard. The general newspapers, 

 of course, give the official markets and comment on them, while 

 the chances are that no one outside of the business knows or 

 cares anything about the fluctuation of oleo stearine. 



My sketch is a little crude, as I had to do it very hurriedly, 

 but you can rely on its being correct. The lard prices are 

 taken from the official records of the Chicago Board of Trade. 

 The oleo stearine prices are taken from private records here, 

 as we have no official records. 



/f^j- 1 90 4. /'/er /^a. ifi>f /<i/ti /Ou 



Chart Showing Fluctuations of Lard and Oleo Stearine. 



Solid Line Indicates Lard. 

 Dotted Line Indicates Oleo Stearine. 



I send also chart showing fluctuation in short rib sides on 

 the Chicago Board of Trade, with an open official future trad- 



f 

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 I 



s 



Chart Showing Fluctuations or Short Rib Sides and Hams. 



Solid Line Indicates Short Rib Sides. 

 Dotted Line Indicates Hams. 



ing market; also S. P. hams, without an official market. Both 

 are the product of the hog, and, of course, there are two sides 

 and two hams to every hog and no more. I have taken just 



the high of each m.onth, beginning January, 1905. The chart 

 was compiled from the official records of the Board of Trade, 

 Chicago, and so far as comparisons go I cannot think of a 

 better or fairer one between commodities, one with and the 

 other without an official market. The charts speak for them- 

 selves. Yours very truly, Arthur Dyer. 



FROM AN ENGLISH INVENTOR. 



TO THE Editor of The India Rubber World: I have a num- 

 ber of valuable inventions in connection with india-rubber 

 that I should like to bring to the attention of manufacturers. 

 For example, my patent for devulcanizing scrap rubber is an 

 improvement in machinery, whereby I propose to devulcanize 

 in fourteen to si.xteen hours. I place rubber in pan, and after 

 fourteen hours steam is shut off and ingredients which have 

 been used for destroying the fabric are taken away. Then all 

 impurities are washed away, while the rubber remains in the 

 pan, so that neither solution nor impurities go into the sheeted 

 stock. I save 35 per cent, in ingredients, 25 per cent, in steam, 

 50 per cent, in labor. The pan is arranged so that it fills and 

 empties by an automatic arrangement. During its working 

 hours, at each revolution, the condensed water from the jacket 

 is let out by self-acting arrangement, so that no one is needed 

 to give attention while in operation.. 



Another invention for this work is the cleaning and purifying 

 of sheeted stock, taking out metal, brass and produce, in the 

 same time, over three times more stock than the best forcing 

 machine made. 



Again, an invention for taking beads from motor tires. 



And one for making substitue by machinery. 



I have brought out a number of inventions suitable for all 

 branches of the rubber-heel trade. 



Making moulds by machinery, according to the method at 

 present employed in England, I can save 90 per cent. 



Machinery for punching from sheet rubber, the dials ready 

 for moulds. 



A patent device for buffing all sizes of heels. 



An apparatus for preparing crude rubber, washing away all 

 impurities. The steam does not come in contact with the 

 material, which is better for sheeting by this method, saving 

 about lYi per cent, over any preparatory method I have yet seen. 



An invention for lifting and conveying tire moulds in and 

 out of vulcanizing pan, which is needed in every rubber works 

 where tires are made. 



Hoping that these details will enable you to arrange an 

 article for your journal which will prove interesting to some 

 person or persons. Chas. Blair. 



Heaton Morris, Stockport, England. 



CANADIAN IJiCPORTS OF CYCLES AND MOTORS. 



The following statistics, for the three months April-June, for 

 three years, are supplied by the Canadian department of trades 

 and commerce : 



Bicycles. 



1909. 1910. 1911. 



From Great Britain $10,325 $38,927 $59,639 



From United States 12,921 19,480 27,817 



From Other Countries 43 



Total $23,246 $58,450 $87,456 



Automobiles. 



1909. 1910. 1911. 



From Great Britain $35,372 $65,406 $111,032 



From United States 412,317 1,273,057 2,080,592 



From France 35,495 35,473 13,280 



From Other Countries 1,029 5,451 



Total $484,213 $1,379,387 $2,204,904 



