■February i, 1906.] 



THE INDIA RUBBER WORLD 



167 



NEW GOODS AND SPECIALTIES IN RUBBER. 



COLDREN S LIPPED JAR RINGS. 



THE illustration shown herewith relates to a lipped jar 

 ring, for use on the regular and mammoth size Ma- 

 son fruit jars, showing both the form of the ring and 

 the use for which it is designed. As will readily be seen, 

 such a ring is designed to facilitate the 

 removal of the jar cap, which is not al- 

 ways the easiest matter in the world. 

 The same company manufacture a new 

 jiatented cap for Mason jars, which is 

 referred to as having several advantages 

 as compared with the old style cap, not 

 the least of which is the ease with which 

 it may be cleaned. [The Coldren Rubber Co., Lebanon, 

 Penn.sylvania.] 



THE "clincher" BLOCK TIRE (CHARY'S PATENT). 



One notable recent 

 "clincher" block tire. 



improvement in tires is the 

 This is designed especially for 

 motor omnibuses and 

 heavy commercial 

 work. The tire is 

 composed of separate 

 rubber blocks, fixed 

 securelj- b y inter- 

 locking steel frames, 

 bolted to the wheel 

 rim. Among the dis- 

 tinct advantages are 

 the absence of side- 

 slip and the ease of 

 repair. The side-slip 

 is prevented by the 

 arrangement of the 

 blocks in two paral- 

 lel rows, with the 

 .spaces between the 

 ends of any two sec- 

 tions in the same row 

 opposite the adjacent section in the same row. As to re- 

 pairs, any block damaged can be replaced in two or three 

 minutes at a cost hardly worth reckoning. Its economy in 

 wear is shoAU in the fact that the recorded wear amounts to 

 only one-fifth of one inch in 4370 miles of running under a 

 full load of five or six tons. Another feature is the avoid- 

 ance of heating. The separation of the blocks prevents the 

 overheating which takes place with endless tires, causing 

 disintegration and soon rendering them useless. The stress 

 is reduced to a minimum by the division of the mass of rub- 

 ber into separate blocks, allowing the heat generated to get 

 away by radiation and conduction. [North British Rubber 

 Co. Limited, Edinburgh, !3cotland]. 



MULTICOLOR RUBBER TILING BLOCKS. 



Interlocking tiling of rubber has long been made in a 



variety of colors and in beautiful designs, but the practice 



heretofore has been for each separate block to be of one 



color. It is interesting, therefore, to note that a departure 



from that rule has been successfully inaugurated by the 

 United Rcrlin-I'rankfort India Rubber Co., of Germany. 

 After considerable experimenting, they have succeeded in 

 producing individual blocks, each one of which contains 

 .several colors, so blended that the effect is that of veined and 

 colored marble. In order to see how the colors would stand 

 under vulcanization, blocks were cured till the rubber was 

 practically vulcanite, and there was no diminution in the 

 brightness of the coloring. 



GOODRICH ADHHSIVE DAM. 

 The illustration relates to a very convenient and useful 

 outfit, consisting of a roll of adhesive dam packed with one 

 bottle of aseptic gum, the vvhole being placed in a round tin 



case. The dam is put up in a roll, 7 inches wide and 36 

 inches long. The adhesive surface being covered with tin- 

 foil. [The B. E. Cxoodrich Co., Akron, Ohio.] 



AN OVERSHOE PROTECTOR. 

 Charle.s W. Linthicum, of the Baltimore rubber shoe 

 trade is the patentee of a device intended to prevent snow, 



water or mud, from getting over 

 the top edge and into the interior 

 of an overshoe. It is designed 

 especially for a combination boot 

 and overshoe such as is common- 

 ly used by lumbermen and gen- 

 erally in cold countries. The 

 " protector " is so constructed 

 and of such material that it ad- 

 justs itself to various sizes and 

 thicknesses of boots to form a tight joint between protector 

 and shoe below the upper edge of shoe. Comparatively low 

 shoes may be used in combination with a felt boot and the 

 same advantage obtained as in a high overshoe and felt boot 

 combined, thus reducing the cost of the combination boot 

 and overshoe as a whole. The protector being made of 

 yielding soft material, in combination with an elastic goring, 

 it conforms to the shape and different positions of the boot 

 in front, upon the back, and upon the sides. 



THE NEW "TAURIL" STEAM PACKING. 



There is now being introduced into the United States a 

 new packing called "Tauril," designed especially for re- 

 sisting higli pressure steam. It is light, tough, and acid 

 proof, and resists steam temperatures of 572° F. or more. 

 Strength tests made with it show that it will bear a crush- 

 ing strain of 32,950 pounds, and a tensile strain of 6863 

 pounds to the square inch. It is claimed that it requires 



