The Yokohama Rubber Co., Ltd.

Haruyuki Takagi

Hisakuni Yamashita

Takeshi Yonezawa

Korenobu Yufu

In a method of reading a concavo-convex bar code disposed on the surface of an article, the improvement comprising the steps of scanning the concavo-convex bar code by a displacement sensor to detect the concavo-convexity, determining the areas of the resulting concavo-convex waveforms, and comparing the area thus obtained with the reference areas of the thick and thin bars of the bar code to judge the pattern of the bar code.

Method of reading concavo-convex bar code

A granular matter feeding method and an apparatus, in which unvulcanized rubber blocks of a non-fixed shape are crushed by a crusher into granules, the weight of said granules being measured, batches of said granules being fed onto a plurality of storages conveyors according to kind, said conveyors feeding in turn to a plurality of metering hoppers which selectively deliver measured amounts of the granules to a conveyor for transporting to a kneader. This system permits the mixing of precise amounts of various types or sizes of rubber granules.

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Fujisawa, Japan

Haruyuki Takagi