December i, 1902.] 



THE INDIA RUBBER WORLD 



89 



THE STEIN "BIKE WAGON' TIRE. 

 This tire consistsof a partially folded circumference of solid 

 rubber within which, and projecting beyond which, is a strong 



layer of fabric. 

 By means of steel 

 flanges on either 

 side of the rim, 

 and a series of 

 bolts three inches 

 apart, the tire is 

 held in place. 

 This tire is de- 

 signed for " bike 

 wagons" and light 

 automobiles, hav- 

 ing the resiliency 

 of a pneumatic 

 tire without its 

 liability to punc- 

 V ture. It is the in- 



vention of Charles 

 ~-— __^_ _- ' Stein, whose for- 



mer tire patents are the basis of the Stein Double Cushion 

 Tire Co., of Akron, Ohio, whose factory lately began opera- 

 tions. The same company will control the manufacture and 

 sale of the new tire illustrated herewith. 



THE AUTO-LOCK CLASP. 

 A 'NEW clasp that has come 

 into large use already for rubber 

 coats, duck coats, and particu- 

 larly for garments worn by fire- 

 men, is that shown in the accom- 

 panying illustrations. It is es- 

 sentially a •■ quick hitch" appli- 

 ance, working automatically, and 



; never getting out of order. Un- 

 like many others, it fastens with 



' a pull, does 



; not unlock( 

 by ace i- 



dent, and does not need either 

 wrench or twist to accomplish 



RIDGWAY's PATENT BELT CONVEYOR. 

 In the construction of this belt the object has been to secure 

 a maximum of resistanct to wear and also to adapt it for use 

 on both sides. Some other belts having been found liable to 

 wear along the lines of bending to an undesirable extent, the 

 rubber cover in the Ridgway belt is made thicker along the 

 line on which the belt is to be bent when in operation. Thus 

 in the case of a belt to form a flat bottomed moving trough, 

 with upwardly inclined sides, the rubber is made thicker along 

 two sides, between the center and the edge portion of the belt, 

 where the flat bottom meets the upwardly inclined portions. 

 By making similar thickened portions on both sides of the 

 belt it may be used equally well on both sides. When one side 

 is worn out it may be reversed and the other side used, or a 

 belt may be used in one part to carry in one direction on its 

 upper side and in another part to carry in the opposite direc- 



T2J.3. 



its release. This device has been 

 indorsed by the chiefs and mem- 

 bers of the fire departments of 

 many large cities. [The Auto- 

 Lock Cla?p Co., Buffalo, New York.] 



A NEW RUBBER SPONGE. 

 A RUBBER sponge of American manufacture, and that in 

 color is exceedingly attractive, and has the even sponginess 

 that characterizes the best foreign make, has just been received 

 by the Editor of The India Rubber World. The color is a 

 little brighter than is shown in the sponges commonly sold, 

 and under tests the sponge seems to be very durable, and yet 

 soft and pleasant to the touch. [Chicago Tire and Rubber Co., 

 No. 329 West Kinzie street, Chicago] 



tion on the other side. It being desirable to 

 have the belt of uniform thickness, it is so con- 

 structed that wherever the rubber is thicker the 

 fabric insertion is made correspondingly thinner. In the ac- 

 companying drawings. Figure i is a vertical section of a con- 



veyor belt embodying this invention and showing it in position 

 on the supporting rolls. Figure 2 is a vertical section of the 

 belt in flat condition. Figure 4 represents the appli- 

 cation of such a belt to conveying in both directions. 

 Still another cut is a plan view of the belt, showing 

 the relation of the casing or cover of rubber and the 

 core or insertion of fabric. Patents on this belt have 

 been issued to John J. Ridgway, of Rosebank, New 

 York, in the United States, No. 707.355. and in Great 

 Britain, No. 12,968—1902. [John A. Mead Manufact- 

 uring Co., No. II Broadway, New York.] 



A NEW RUBBER SOLUTION. 



There has been placed upon the market in England a spec- 

 ially prepared dry form of India-rubber, in tins, designed as a 

 base for solution for making electrical joints. All that is nec- 

 essary for the user to do, in order to obtain a solution in a 

 workable state, is to fill up one of these tins with naphtha, stir- 

 ring it and leaving it to stand twenty-four hours. There will 

 then be found the weight of India-rubber solution indicated by 

 the label on the tin. One reason for the introduction of this 

 new article is that rubber solution is subject to a very high 

 freight rate, on account of being classified by the carriers as in- 

 flammable. The rubber as prepared above, however, can be 

 transported at ordinary rates. The trade mark "Solvo" has 



