AicLST 1. 1920] 



THE INDIA RUBBER WORLD 



741 



RUBBER TRADE INQUIRIES. 



rHE inquiries that follow have already been answered; never- 

 theless they arc of interest not only in shou-ing the needs 

 of the trade, hut because of the possibility that additional in- 

 formation may be furnished by those idio read them. The editor 

 is therefore glad to have those interested communicate tvith him. 



(811.) A correspondent desires to know the best commercial 

 method of finding the percentage of lead hydrates and lead car- 

 bonates in ordinary white lead. 



(812.) A correspondent wishes to know address of owner of 

 patent on or manufacturer of a machine for forming rubber 

 balls, toys, etc.. before they go into the molds. 



(813.) A request is made for the addresses of manufacturers 

 of brass fittings for rubber bath and basin stoppers. 



(814.) The name and address of the manufacturer of the 

 "Sorelle" rubber heel is desired. 



(815.) A correspondent wishes to obtain the names and ad- 

 dresses of the concerns making machines for the manufacture of 

 small hose. 



(816.) Directions for making a dipping solution for toy bal- 

 loons are desired. 



(817.) The name of the manufacturer of the Daisy milk bot- 

 tle stopper is requested. 



(818.) A foreign correspondent wishes address of reputable 

 manufacturer who will make reservoir sacks for self-filling foun- 

 tain-pens strictly according to specifications. 



(819.) Inquiry is made by a foreign correspondent for the 

 names of any firms manufacturing a machine for rolling finger 

 cots. 



TRADE OPPORTUNITIES FROM CONSULAR REPORTS 



Addresses may be obtained from the Bureau of Foreign and 



Domestic Commerce, Washington, D. C, or from the following 



district or cooperative offices. Requests for each address should 



be on a separate sheet, and state number. 



District Offices. 

 New York: 734 Customhouse. 



Boston: 1801 Customhouse. -- 



Chicago: 504 Federal Building. General Freight Agent, SoutI 



St. Louis: 402 Third National Bank Railway. 96 Ingalls Building. 



Building. Los Anijeles: Chamber of Commerce. 



New Orleans: 1020 Hibernia Bank Philadelphia: Chamber of Commerce. 



Building. Portland, Oregon: Chamber of Com- 



San Francisco: 307 Customhouse. merce. 



Seattle: 848 Henry Building. Dayton, Ohio: Dayton Chamber of 



(33,137.) A firm in South Africa desires to purchase machin- 

 ery for the manufacture of tires and tubes. Quotations c. i. f. 

 South .\frican ports. 



(33,149.) A trading company in Argentina desires the ex- 

 clusive agency for the sale of rubber belting. Quotations by mail 

 or cable c. i. f. .Argentine port. 



(33,170.) .\ company in Norway wishes an agency for the 

 sale of rubber and rubber goods. Quotations c. i. f. Norwegian 

 port. Payment through banks in Norway and New York. 



(33,211.) .\ manufacturer's agent in Australia desires an 

 agency for the sale of all kinds of rubber goods, except tires. 



(33,218.) A company in Danzig desires exclusive agency for 

 motor cars and cycles, as well as tires. Quotations c. i. f. Danzig 

 in United States currency. Correspondence in German. 



(33.224.) A firm of engineers and merchants in Wales wishes 

 agency for sale of motor tires and rubber goods. Quotations 

 c. i. f. English ports. 



(33,254.) A commercial agent in Bulgaria wishes agency for 

 sale of fine quality raincoats. Quotations c. i. f. port of Varna. 

 Cxirrcspondence in French. 



(33,255.) A commercial representative from Colombia who 

 is now in the United States wishes to secure an agency for sale 

 in Colombia of rubber goods. 



(33,261.) A merchant in Norway desires to purchase five 

 tons of washed Para rubber. Quotations c. i. f. Bergen. 



(33.277.) A surgical supply company in Canada wishes to 

 purchase elastic webbing. Quotations f. o. b. shipping port. Cash 

 payment. 



(33,280.) A commercial agent in Italy wishes to secure rep- 

 resentation of firm for sale of rubber goods. Correspondence may 

 be in English. 



(32,924.) A trading firm in Australia desires an agency for 

 motor accessories. Quotations c. i. f. Australian port. 



(32,927.) /\n import firm in Ceylon wishes to purchase mo- 

 tor cars and motor accessories. Quotations c. i. f. Ceylon. 



(33,306.) A commercial agency firm in Brazil desires an, 

 agency for the sale of automobiles, supplies, and rubber goods. 

 Quotations c. i. f. Brazilian ports and f. o. b. American ports- 

 Correspondence may be in English. .tje'r I 



A HAND-POWER STUMP PULLER •*■«/ 



Clearing land for rubber planting involves the removal of 



stumps and therefore a stump puller that is already in use 



on rubber plantations in the Far East, will be of more than 



passing interest. 



This hand-power puller, as its name indicates, is operated 

 by hand with eitlier one or tw'O men, and its light weight 

 makes it readily portable to any point where it may be 



v. The "K" Power Puu i i 



needed. The simplicity of construction and operation is such 

 that any one, even of the most ordinary intelligence, can use 

 it with a few minutes' instruction. With a hundred pounds' 

 pressure on the handle, the machine will develop a pull of 

 48 tons, which is more than two large tractors or one com- 

 pound locomotive will develop. It can be carried into posi- 

 tion by two men or wheeled about by one, and works equally 

 well in the air or on the ground. (The Fitzpatrick Products 

 Corporation, 99 John street. New York City.~) 



RESISTANCE OF RUBBER OBTAINED BY COAGULATIOt* 

 OF LATEX. 

 By coagulating latex with sulphuric acid in the presence of 

 phenol it is possible to obtain sheets of raw rubber of surprising 

 strength and elasticity, the breaking strength being 190 grams 

 per square milimeter and the permanent set small. After heat- 

 ing for 20 minutes at 100 degrees C. the extensibility and perma- 

 nent set are greater but the breaking strength is unaffected ; heat- 

 ing for 4 hours at 110 degrees C, however, causes the rubber to. 

 become very weak and plastic. If strips of the rubber are vul- 

 canized in the sulphur bath at 135 to 140 degrees C, a very 

 elastic product is obtained with a breaking strength of 666 grams 

 per square milimeter. — V. Henri, in "La Caoutchouc et bt Guitar- 

 Perelxa," 1920, 17, pages 10196-10202. 



