SU32204A1 - Abacus with a device for multiplying and making numbers - Google Patents

Description

The proposed scores are equipped with movable parallelepipeds located on movable axes, multiplied by multipliers with tables, so that it is intended to achieve the production of multiplication and division of numbers.

In FIG. 1 shows a portion of the bills with a device for multiplying and dividing numbers; FIG. 2-tO in cross section; FIG. 3 is a detail and FIG. 4-. Scan.

The proposed scores are equipped with a device for multiplying and dividing numbers, consisting of worn instead of pits on thick axes 3 rotating parallelepipeds 4 located in the upper part of the bills. and zero (Fig. 4). The axes 3 are arranged in such a way that with the help of their spherical thickenings 2 at the ends they can move up and down along the internal cavities .5 in the side frames of 7 bills. Thus, parallelepipeds 4 can simultaneously rotate, moving in axial direction.

and move to the upper edge of the accounts, where the numbers from 1 to 9 are plotted in the middle.

Under the first digit of this p, yes, i.e. under the unit, all digits of one of the multipliers are set in a certain sequential order (or

divider).

In the drawing, the figure is set 94 (Fig. 1); to the right of this number are his works on 1, 2, 3, 4, 5, 6, 7, 8 and 9, these works are read on a digital surface. By adding to the accounts of these private works, multiplication is performed, and by subtracting them from the dividend, division is performed.

The subject matter of the invention.

Bills with a device for multiplying and dividing numbers, differing in the use of axially moving parallelepipeds 4 with multiplication tables applied to the faces, mounted on axes 3 that are movable in the side walls of the accounts, with the numbers from 1 to 9 on the upper billing frame.

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