Arizona republican., 1919-02-23
M|LE-H|CH SPEEDWAY USED TO TEST TIRES
 BY GATES RuBBERCO.

The only mile-high speedway in the world for the testing of automobile tires is located almost within the shadow Of the Rocky mountains, on the roof of one of the large factory buildings of the Gates Rubber com pany of Denver.
 After a trip through the factory. a very fitting climax is a visit to this speedway, not only for the purpose of witnessing the tire testing device, but to gain an uninterrupted view of most impressive panorama of noun tain and plain.
 In the factory the sharp cracking sound of the rubber as it is forced into the numerous milling machines, the boom and roar of the machines themselves, and the innumerable oper- ations necessary in preparing the crude rubber for use, fill the mind of the visitor with wonder at the inge- Guity and resourcefulness of man.
 He watches with interest each op-' eration in the building of the Gates half-sole time, all parts of which are done by hand. He is taken into the store room where there are always from 10000 to 50,000 half sole tires on hand to supply the demands of the dealers in more than 500 cities in the United States
 Going out onto the roof where this testing machine is spelling quality into every half-sole tire, the visitor IS again filled with wonder at the unfor- getable beauty and sublimity of the mountain scene before him.
 The clearness and pureness of the air give the distant mountains the ef- feet of being but a stones throw away and the snow-capped peaks have a rugged beauty that is unsurpassed and commanding.
 One unconsciously throws back his shoulders and drinks in the pure. clear mountain air. This feature alone has ! contributed toward making Denver the home of the Gates Rubber com ! pany. and yearly thousands of tour ! ists stop here to enjoy the natural ad- ! vantages which are an represent | reality.
 | Look to the east as far as the eye ! can see and farther, the plains stretch | out over eastern Colorado and on 10 1 the Mississippi
 1 It is with reluctance that the visitor | concentrates his attention on the most important part of the factory equip ment
 Charles C. Gates. president of the | Gates Rubber company, remarked that the mile-high speedway. simple as t is. has been a material factor in the perfection of the Gates half-sole tire 10 it's present high standard of dura bility.
 This is true because the Gates half sole tires undergo all of the wear and tear of actual road conditions. from the level cement roadway of the city ! 10 the rough and treacherous road conditions of the test adequately dem ons;rate the wearing qualities of the ! half-sole tire.
 The machine itself is very simple consisting of a long arm revolving ir a huge circle on the end of which i: attached the half-sole tire A weight equivalent to that of a heavily loaded automobile is suspended over the tire i nsuch way that the tire itself car ries the load
 The track on which this tire travel, is one half mile long. and it's construc- ton reminds the visitor of a sky lin, boulevard. with it's ups and downs anC the attendant thrills which character ize ride over this type of roadway.
 A stretch of cement trackway give. the tire momentum. and when it ha reached a speed Of approximately g miles an hour it strikes a sandy stretcl which causes it to jump and skid From here it travels over an imitation brick roadway in which some of thu bricks are missing, and then it plunge into water and mud. Then up an in cline representing a rough mountain road. it comes to a A degree slop where it is necessary to slam on tn brakes Thus the tire continues It travels all day and every day until has given it's maximum mileage.
 Tire experts are always ''on tn iob to observe tho wearing effects ol the tire. No phase Of the wearin process is overlooked, and whenever
 defect is discovered. although it ma appear to be of the minutest inpor tance. steps are taken to effect a cor recton.
 , Thus, the mile-h speedway itsel has resulted in the establishment 6 the More Mileage" slogan for tn Gates half-sofe tires. and it's vantag
 point for observation has made it tn most popular point for those who fin it possible 10 visit the Gates Rubbe company factory.
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