Importance

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Abstract

A combination weighing machine, which is generally used for packing a plurality of articles in individual bags or the like so that the total weight of each bag becomes nearly equal to a predetermined target weight, including a plurality of weighing balances for weighing the articles at the same time, arithmetic means for selecting some of these balances so that the total weight of the articles thereon satisfies a predetermined condition and means for unloading the selected balances to collect the articles thereon and then loading them with new articles, respectively, to initiate the next cycle of operation; each balance being accompanied with one or more temporary holding hoppers and corresponding memories, and means for distributing the articles on the balance to these hoppers and, at the same time, feed weight information thereof to the corresponding memories, in order to subject the articles in the hoppers to the selection by the arithmetic means together with the articles on the balance, thereby improving weighing efficiency and accuracy without increasing the number of expensive weighing balances.

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First Claim