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Show radial line drawn from the hub of the wheel to its periphery at any angle must pass through at least one of the air chambers. Though every chamber is separated from Its fellows by dividing divid-ing walls, they are all connected by air vents and may be inflated to any pressure. . . Twenty to thirty pounds of pressure Is sufficient to Insure all the advantages given by a continuous air tube, with none of the disadvantages disadvan-tages Inseparable from nigh pressure." These two Inventions seui. upon examination and some investigation, to be of practical value in the growing use of automobiles and other motor vehicles A PUNCTURELESS AUTOMOEILE TIRE I Wbot seems to he a punctureless automobile au-tomobile tire, says Consul Benjamin F. Chase of Leeds, Is the invention of an Englishman, which bo describes- I It Is composed of an inextenslble heavy canvas lining, tbe crown being packed with a puncture-proof material and placed between tho outer cover and the inner air tube of the ordinary pneumatic tire. The lining is so made as to cause a low pressure on the tread and to more nearlv equalize the pressure on Ihe inner air tube. The llnlDg is the thickest at the crown and tapers to a feather edge near tho rim. The external appe-anince is like tbe ordinary tire. The Inventor has given it drastic tests. He made several sever-al gashes and cuts on the outer cover of a tiro through to the patent lining and with these has driven his car 50u miles without a puncture or the necessity ne-cessity of repair of this tire, although I wheels on the same machine tltted with other tires had the usual dim- cultles. Other tests on heavy cars without the special gashes have been equally satisfactory. i An inspection of the invention impresses im-presses one with its simplicity, nnd the carved outer cover used and seen demonstrates that It .Is a great devel-1 opment in tires for use on automobiles automo-biles Apparently a simple and practl-cal practl-cal solution of tho ordinary tire trou- ble has been found. The invention is patented In England and tho United States. Another invention by the same man U a bridge tire of keyed-chamber design de-sign for heavy mote(r vehicles, it is described as follows: "In an all-rubber tire or almost square section Is molded a double series of small triangular air chambers cham-bers 60 keyed into each other that a. |