GB310313A - Improvements in weighing and counting scales - Google Patents

Abstract

310,313. Toledo Scale Co., (Assignees of Hem, H. O.). April 23, 1928, [Convention date]. Counting by weighing. - In a weighing and counting scale the commodity receiver is connected to automatic load - counterbalancing mechanism by lever mechanism which supports a plurality of ratio pans acting in opposition to the commodity-receiver at fixed leverages which in the case of one of the ratio pans is substantially greater than the leverages of the other ratio pans. As shown, two ratio pans 24, 25 are suspended from a bracket 21 secured to the tare beam 10 which is fulcrumed on a knife-edge 14 and is connected as usual by rods 11, 9 to the platform 3 and to the pendulum mechanism 6. Assuming the leverages between the platform 3 and the ratio pans 24, 25 to be respectively 99 :1 and 9:1, the operator may ascertain the number of articles on the platform by transferring some of the articles to the ratio pans 24 and 25 until a further transfer of one article to the ratio pan 25 would cause the indicating pointer 12 to return beyond the zero. The operator then removes sufficient articles from the platform 3 to bring the pointer to the zero mark. Each article in the ratio pan 24 accounts for 100 articles including itself, and each article in the ratio pan 25 accounts for 10 articles including itself. To this total the operator adds the number last removed from the platform to give the total count. Other leverage ratios may be adopted.