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Show AUTOMATIC ADDING MACHINE Illustration of Progresslveness of China and Japan Shown In Invention In-vention of New Device. Most of us aro familiar with tho original abacus, invented by tho Chlneso, with Ua colored balla strung on wires. Now a Japanese has shown tho wldo difference between tho progresslveness pro-gresslveness of thoso two natlotiB by Automatic Abacus. Inventing tho calculating machlno soon hero. This machlno haB a plurality plu-rality of registering wheels nnd a rotary drum, with banks of Indicating koyB mounted upon It, ono sot to each registering wheol. To computo a certain Bum, for instance, you striko tho right indicating keys on tho drum and then turn tho handle, causing tho drum to revolve. Thoso Indicator keys having boon thrown Into position, posi-tion, striko othor mechanism on tho registering wheols and form a combination, com-bination, which Ib tho result of your addition or multiplication or whatever what-ever it may bo. |