182 



THE INDIA RUBBER WORLD 



[Ji xf. 1, 1915. 



the plating can be examined to see that rust is not eating 

 the steel and reducing its p.. mrs of resistance againsl 

 the pressure of the sea when traveling deeply submerged, 

 rhese manholes have bolted covers, and to make them abso- 

 I water tight they are screwed down against gaskets of 

 rubber. 



In order to increase the elemenl of safety, the latest under- 

 sea boats arc provided with salvage buoys which rise to the 

 surface when released by a trigger worked from within the 

 craft. These buoys are connected with the sunken boat by 

 an armored rubber hose through which air can be pumped 

 down from the surface, and insulated in the walls of this host 

 are the circuits for a telephone and an electric signal light 

 But ml. her also is used in the special escape helmets and 

 ,p , h member ol a submarine's crew. 



I hi se helmets are a modification of the tire and mine rest ue 

 helmets which we bav. recently described, and they have an 

 air regenerating apparatus which will supply air for the 

 wearer for at least an hour. The purpose of these helmets 

 is twofold: First, they make it possible for the crew oi a 

 submarine to work in a vitiated atmosphere and, even in the 

 presence of chlorine gas, to take steps for the refloating of 

 the boat, winch might be out of the question without this 

 protective covering, and, second, they enable the men. under 

 cumstances, to work their way out of a completely 

 flooded submarine so that they can rise to the surface pro- 

 vided the depth of water be not too great. 



The batteries of an under-sea boat require frequent in- 

 spection as well as the removal from time to time of the 

 damaged plates. The men must use acid-proof rubber gloves 

 for this work, and the hands must be similarly protected when 

 nipulating live circuits. In refilling the battery jars with 

 electrolyte, or when collecting acid that may have been spilled 

 oxer into the lead-lined accumulator space, a special pump is 

 employed, and here again rubber tubing is demanded. At 

 various points, where heavy doors swing, rubber buffers are 

 fitted, and. again, at certain places where a firm footing must 

 be assured, corrugated rubber mats are provided. Finally. 

 work aboard a submarine is a wet business, and therefore 

 most of the crew are supplied with high rubber boots and 

 rubber Mom. coats and caps. Relatively small as a submarine 

 is still its dependence upon rubber is very extensive, and the 

 amount of rubber used in tins way is bound to increase rap- 

 idly because of the striking proof the submarine has given ot 

 its terrific effectiveness. 



RUBBER STATISTICS FOR THE UNITED STATES. 



IMPORTS OF RUBBER \ND 



MANUF \< TIKIS OF. 



Nine Months Ending 

 March, 1915. March, 1915. 



PERMA"— A GOLF BALL PAINT. 



A rubber paint for golf balls, which increases their cost only 

 about $1.50 a dozen and which is said to render them good for 

 at least a hundred holes, is one of the season's new features in 

 golf ball manufacture. This paint has been introduced under 

 The registered trade name "Perma," and under the claim that it 

 increases the elasticity of the ball, causes it to cling to the sur- 

 face of the club and enables one to make straighter and more 

 certain plays. It can be scrubbed with soapy water and a brush 

 until it has a fresh, new appearance. 



The same manufacturers have also brought out a new golt 

 ball, the "Honor." the first ball to carry "Perma" paint. [A. G. 

 Spalding >V Bros., New York.] 



Artn 



■idia rubber, etc., and substi 

 inns for, and in 

 tures of: 

 I Inmanufactured — 



I pounds.. free 



ule gum 



I iutta jelutong 



i ,nl la percha 



\ alue. 



Qnantil ) ■ 



4S 



ibbi r 



India rubber i 



fit only for re- 

 manufacture 



Total unmanufactured. 



942 

 278 



571 



7"! 



$58,333 2,098,084 



193,015 3,534,012 



[1,043 10,449,033 



12,581 1,020,083 



12,515,091 116 Oi 



Value. 



$821,5.'.; 



1,021 

 494,490 



i 



54,800,558 



346,724 



. tures of — 

 ( lutta percha .... 

 India rubber .... 



Total manufactures of. 





504,877 



$57,798,077 



$10,523 

 $670,905 



Substitutes, elasticon ami 



similar dutiable $216 



IMPORTS OF CRUDE RUBBER BY COUNTRIES. 

 From: 



Igium founds . . ..... 



Fl anee 3,719 



$24,775 



$2,095 



( x-rmany 



Portugal 



United Kingdom 11,527,571 



Central American States 



and British Honduras. . 215,068 



Mexico 67,794 



Brazil 8, 



Other South America 1,315,799 



Kast Indies 1,282.523 



Other countries 2,467,99; 



316,452 



6,017,731 



83,657 



24,833 



3,713.016 



539.621 



636.165 



1,181.521 



616,608 



732,1 is 



2,619,520 



47.577.134 



604,675 

 1,352,666 



38,498,988 

 3,781,306 



14,028,940 



Tot al 26,025,791 $12,515,091 116,506,851 



EXPORTS OF AMERICAN RUBBER GOODS. 



oiliher, manufactures of: 



$9511 } 

 259,1 28 



855,448 



24,346.71.5 



252,197 



512,3311 

 16,119,190 

 1,654.'" 

 6,78 I 

 2,721 



$54,800.55* 



Si rap and old pounds 



Reclaimed 



ting, hose and packing. 

 . nd shoes — 



pairs 



Shoes 



Tires — 



For automobiles 



All other 



All other manufactures of. 



139,422 

 507,044 



6,894 



$24,248 

 84,441 



101.020 



18,444 

 62,563 



627,505 



54,642 



340,138 



Total 



EXPORTS OF 

 Tires for automobiles: 



France 



England 



AUTOMOBILE 



$1,313,001 

 TIRF.S BY COUNTRI 



Canada 



Mexico 



Philippine Islands 

 Other countries . . 



Total 



449.560 



50.000 



8,332 



3,384 



116,229 



EXPORTS OF FOREIGN 



$627,505 



MERCHANDISE. 



56, I 



1.5511, 7IH 

 464,392 



73.349 

 160;631 

 65 1,445 



. ,.«; ,.(.•■ 



ndia rubber, etc., and sub- 

 stitutes for, and manu- 

 factures of: 

 Unmanufactured — 



Balata pounds, .free 



Gutta percha 



India lubber 



Total unmanufactured. 



Manufactures of india rub- 

 ber dutiable 



istitutes, elasticon and 

 similar dutiable 



79.309 

 568,069 



S3. 214. 310 



S5.44S 

 34 5 



THE 'NON-SEPABABLE" BALATA BELT. 

 A new balata belt is being introduced differing in construction 

 from the old style in that it has for its base a solid woven 

 fabric balata impregnated. It is claimed that this new type of 

 balata belt is very strong, pliable to a high degree, and that it 

 will not open up under any condition of work. It has no seams 

 lo split, and is recommended for economy in use. It is made in 

 four styles— light, single, medium and heavy— for different 

 varieties' of work. [W. H. Salisbury & Co., Chicago.! 



A PENCIL FLASH LIGHT. 



A Xew England company is manufacturing a novelty in the 

 form of a combination pencil and flash light, a small device that 

 can be carried in the pocket without inconvenience. Instances 

 where such an invention could be made useful are numerous, 

 as it affords means both for writing and seeing what is written. 

 A small rubber insulator is used in this device, and to obtain 

 a light it is iiecess a ,-y only lo push the pencil into writing posi- 

 tion. [Hawthorne Manufacturing Co., Inc.. Bridgeport, Con 

 necticut.J 



