"02 



THE INDIA RUBBER WORLD 



[September 1, 1919. 



A NEW "SLING-SHOT." 

 Xow tliat autumn is near, the boys are interested in hunting 

 and shooting, and the boy who cannot have a gun is always glad 

 to have a sling-shot. The one il- 

 lustrated is suitable for shooting 

 at small game or at a target and 

 is known as the "Zip-Zap." The 

 handle is made of nicely finished 

 metal and is strong and durable. 

 The "sling" portions are made ot 

 a very good grade of elastic and 

 have great strength and resiliency 

 as well as durability. Every deal- 

 er knows how the possession of a 

 toy like this creates the desire for 

 one like it in other boys who see 

 it, and when the first boy tells 

 where he got his "Zip-Zap," hi'- 

 companions are likely to patroni/e 

 that same store — and soon. (.\nt( 

 South Carolina.') 



imatic Rubber Co.. Columbia, 





AN INDUSTRIAL GAS-MASK 



Built under the direction of a former executive of ihe Research 

 Division of the Chemical Warfare Service 

 of the Government, the gas-mask shown 

 here gives the Army standard of gas pro- 

 tection — something never attained before in 

 industrial gas-mask design. The points of 

 particular practicability are : protection 

 against a wide range of industrial gases, 

 fames, smokes, and dusts ; comfort in 

 wearing: clear vision through the eye- 

 pieces, made possible by the incoming air 

 drying any moisture on them ; quick ad- 

 justment; low breathing resistance; no 

 nose-clip or mouth-piece, permitting speech 



; unhindered; no handicap in wearing while 



at work ; light weight ; first class quality of 

 materials used in its construction. The 

 complete mask includes the face-piece, the interior of which is 

 illustrated here, made of high-grade, heavy rubber covered on 

 the outside with a protective layer of tough elastic fabric ; a 

 canister with connections and fittings ; and a durable, light chest 

 harness. The canister contains the materials for absorbing the 

 gas, dust, fumes or smoke, and is replaceable when exhausted 

 through use. The rubber face-piece rests easilj' against the face 

 and gives both coinfort and safety from leakage. {The Mine 

 Safety Appliances Co., Gas Mask Department, Chamber of Com- 

 merce Building, Pittsburgh, Pennsylvania.) 



ANOTHER PUNCTURELESS TIRE. 



A tire that claims to eliminate the dangers of puncturing, as 

 well as tire repair bills and the ens; . f cvtra lubes and casings 



comes from 



the West, It is 

 composed o f 

 three layers of 

 corded fabric 

 with cushion- 

 of live rubbi i 

 between and an 

 outer tread ol 

 extra tough 

 rubber. The 



stretchless cord belts distribute the shock vibration, while low- 

 pressure air chambers in the rubber cushions, at regular intervals. 

 give resiliency. (Lambert Tire & Rubber Co.. Portland, Ore- 

 gon. ) 



DUNLOP SELLS BALLS THROUGH PROFESSIONALS. 



Tlie Dunlop Rubber Co., Limited, Birmingham, England, is 

 employing the novel sales policy this season of selling its golf 

 balls through professional players exclusively, instead of through 

 sporting goods dealers as well. Having introduced the "D^jnlop" 

 golf balls in this way, it was a logical procedure to confine their 

 sale to the club professionals. 



MEDICINE DROPPER. 



.\ new style of medicine 

 dropper is an improved form 

 of the well-known combination 

 of rubber bulb and glass tube. 

 However, instead of the usual 

 straight tube, this one has a 

 bulb at the center. The point is 

 glazed, and the rubber bulb is 

 of the best quality. These drop- 

 pers come packed twelve on a 

 card for display purposes, and 

 each card is, in turn, packed in 

 a separate carton. This drop- 

 per is known as the "Maderite 

 Co.. Inc.. Xew Haven, Connecticut. 



( The Seamless Rubber 



A SELF-PROPELLING NOZZLE. 



The "Victory" self-propelling nozzle has recently been invented 

 by John T. Burns, a workman employed by the Department of 

 Sewers, New York City. The point of the nozzle permits a 

 small stream of water, forced through at high pressure, to cut 

 into any obstruction in the sewer and loosen portions of it Thij 

 device is extremely simple to operate and accomplishes results. 



In the back part of the nozzle are holes through which some 

 of the water is diverted and this tends to float or force the 

 loosened part of the obstruction back to the sewer opening. The 

 force of the water impels the nozzle forward at the same time 



that it forces the obstruction behind it. and pulling the hose 

 with it. Sometimes the distance covered and cleared is as great 

 as two hundred feet. (Sidney 

 SIadden& Co., 1576 Woolworth 

 Building, New York City.) 



CATERPILLAR TIRE. 



.\ new style of tire intended 

 for use on heavy trucks is 

 called the "Caterpillar," be- 

 cause it reaches out and grips 

 the road, lets go without fric- 

 ion, and on release puts, behind 

 •Jie point of road contact its 

 lull resilient force that in a 

 measure overcomes the inertia 

 of the wheel. The tire is ap- 

 plied by a hydraulic press. As 

 shown in the accompanying il- 

 lustration, the tire is cut into 



at regular intervals, the spaces alternating on the opposite edges 

 of the outer surface. It is claimed that this tire is much easier 

 on engine and chassis. (Kelly-Springfield Tire Co., 200 West 

 57th .-treet, .Xew York Citv. ) 



