Yamato Scale Company, Limited

Hayssen Manufacturing Company

Katsumi Nishio

Dale M Cherney

Collator apparatus and methods for preventing incorrect operations of first and second machines such as a combination scale and a packaging machine which are to be used together to process the same type of product. The first machine has a first memory for storing operation condition data, each with a different data number (address), and has an associated first memory control. The second machine has a second memory for storing other operation condition data, each with a different data number, and an associated second memory control. The first memory control of the first machine is caused to generate a specified one of the data numbers of the first memory. The collator apparatus sends a request signal to the second memory control of the second machine to cause the second memory control to generate a data number of the second memory, which data number corresponds to the specified one by a predetermined relationship in the absence or malfunction. Then the data numbers so generated are compared and a starting signal is produced for the first machine when the data numbers correspond according to the predetermined relationship. The predetermined relationship, for example, can be a match, or a correspondence of data numbers in a table, or otherwise.

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Akashi, Japan

Katsumi Nishio