Arizona republican., 1921-05-15


 be used in making tires, using the finest and latest machinery built for the purpose, machines that are pat ented and used exclusively by Fire stone.
 In connection with F'irestone qua lity, a word regarding cotton is inn portant. Entering into the construc- tion of tire building, the square woven and cord building fabric, chafer and breaker fabrics are made from Ihe longest and strongest flores obtainable, for the reason that it is necessary to use the varieties of cot ton having the longest fibre in order to get the greatest strength. There are just two ways of making q cord stronger-one is to add to its thick ness, the other is to use cotton hav- ing a longer fibre or staple. In spin ming the cords for Firestone cord tires strength is obtained by using the longest staple. This is Arizona cotton. In other words we insure maximum strength by specifying that no fibre of staple shorter than 14 = inch is to be used in our tires.
 We own our own fabric mills where the fabric used is woven on looms extra wide. This is another Firestone feature. It was found that by weaving this material S4 inches wide 1t was possible to reduce the spices in a fabric tire 35 per cent. This increased the strength of the finished tire by reducing the number of spices and effected a material saving.
 The buying, specifying and ob- taining. with greatest possible saving of raw materials is but one of the steps to go through in placing the finished tire on the market. The next and possibly the prime factor in this latest price revision is the actual making of the finished tire. Into this enters another vast army of efficient and loyal men and in this respect Firestone .is unique, in that every member Of this vast organi- zation is a stockholder. Each man is financially interested; this means a lot to the ultimate user. for it means the man building tires is going to see that each piece of work is perfect before it leaves his hands. No work is half done and covered up with the next step, for the builder knows, as well as the man does that uses tires that the service he gets from this tire will determine his choice when he buys another. and for that lea son the entire organization is financially in- terested. Each and every one will see
 
 satisfied users mean greater returns
 TO go further, Firestone has the buying organization, the factory or ganization. Now as to the actua physical part of the manufacturing and to take one item in particular 3l2- inch tires. It is estimated that about 65 per cent of the cars in oper- ation use this size. IS this size is ap- piled to the light car and essentially
 fnr to com bine the maximum mileage and service with a price in reach oi all. After repeated tests such tire from service angle was produced but when the item of cost was fig ured, it was found to be out of line and the only way 1t could be brought to the original estimate was through production and greater efficiency in manufacturing
 ITO obtain this. F'irestone spen' millions in building and eauipping with the latest and best machinery and in perfecting the finest methods an entirely new plant to be devoted to this size exclusively, was built witt a capacity of 15,00o tires a day. This plant is known as plant number and it has been declared by engineer ing and manufacturing experts to b' the finest example of the modern tirt factory in the world The best brain: of the country have been concentrat- ed upon its design as a factory build ing, it's mechanical equipment, ant the manufacturing process uset therein. In this wonderful plant | every appropriate labor and time 1 saving device or machine has beer l installed: nothing has been over | looked which would aid in eliminat 1 ing lost motion, promote maximum | efficiency, and contribute to produce l the finest tires built.
 "Production is based on recent, worked -out straight line method 1 That is to say. from the time the rav | materials come into the factory the, move forward, never back, from tn hands of one worker to another. on
 straight course as nearly as possible 1 until the finished tire comes through
 Mechanical conveyors everywher 1 bring the workers their material Some of these conveyors are hug 1 cranes. such as carry large rolls 0 l cotton fabric to the calenders; other | are merely light weight hooks, sucl | as those which bring to the worker | chair the sidewall or tread of the tir | he is finishing. The carcass of tn
 tire is built on four men machines each of which has a capacity of a tir
 a minute.
 That quality may be guarded i i this quantity production, inspector stand at regular intervals along tn l tires course. By hand, eye or me
 chanical device, they check ever E operation of machine or worker
 hand When defect is noted the tir
 is thrown out.
 Just stop for a moment and pic
 ture to yourself two immense build ings covering 50 acres of floor space
 filled with the most efficient ma
 chinery of it's kind in the world. oper
 ated by an army of stockholders, tha
 under normal times would populat
 more than half of Phoenix, devotin their energy. time and brains i
 building into Firestone tires, Mos
 miles per dollar by giving to tn
 motoring public lower prices on de pendabIe tires that deliver maximum