Name/Title
StereographEntry/Object ID
2023.055.3.0422Description
A black and white stereograph. Image is of two men applying rubber strips to a machine to make tires, other men in the background are observing the process. Above the image "90" is printed, below the image "V23290 - Putting on Last Ply of Machine Made Tires." is printed, to the left of the image "Keystone View Company Copyrighted, Underwood & Underwood Manufacturers MADE IN U.S.A. Publishers" is printed, to the right of the image "Meadville, Pa., New York, N. Y., Portland, Oregon, London, Eng., Sydney, Aus." is printed. On the reverse the following is printed:
V23290
PUTTING ON LAST PLAY OF MACHINE MADE TIRE
In the crude rubber recieved at the factory are sticks, dirt, bits of leaves, and beetles. These are removed by grinding the rubber in a water bath. The particles of dirt are thus washed away. The rubber is now pure enough for the first process of manufacture.
The next step is to mix the rubber with chemicals. This is called compounding. In the factory here shown four or five hundred different chemicals are used to compound with rubber. Some of these are to give strength and toughness, others to give color to the rubber. It is possible to make rubber that is tougher than steel.
The rubber is now ready for manufacturing purposes. What next happens to it depends on the uses to which it is to be put. For example, if it is to be made into the bandages that dentists stretch across themouths of patients, it must be rolled bery thin. This process is called sheeting.
One of the greatest uses for rubber today is in the manufacture of automobile tires. You see here an automobile tire being built up. The framework of a tire is its body of fabric or tough cloth. On an iron core, the shape of the tire, this fabric is first wound in several thicknesses. It is a work that demands care and skill. To become an expert workman in this department a man must have a steady hand, deft figners, a clear eye, and good judgement.
There is another way of bulding up ires. This is using two crossed layers of heavy cords instead of fabirc to wrap about the iron core. These cords have been filled with a rubber solution under high pressure. They are laid on the core by a machine. A tire so built up is called a Cord. Many tires are thus built at Akron, Ohio.
Copyright by The Keystone View CompanyCollection
Photograph Collection