SU16065A1 - Counting logarithmic device - Google Patents

Description

The proposed countable logarithmic device with the already well-known multi-slide slide bars, the general view of which is schematically shown in the drawing, is intended to accelerate the production of various calculations with sufficient accuracy. It consists of an employee's ABC store for storing DE plates on which are printed on both sides in several rows of a part of the logarithmic scale. The top board of the store J5 (7 is equipped with two G, I, H and K marks, located respectively at the ends of the scales of the slash D, E, planks on which the LF slider, fitted along the edges of PQ and PQ with Adaptation devices, can move. Each of the plates DE is provided with a protrusion F, bearing on each side the sequence number of the given plate and the limits of the scale applied to it.

In order to perform calculations, the LAN store is extracted from any of the DE plates selected by the symbols on the protrusion F that remains when the DE boards slide into the store outside, then the selected DE plate is inserted into the grooves of the slats of the upper plate of the instrument and the calculations are made using the engine LM is the usual order for counting logarithmic instruments.

To facilitate additional calculations on the top plate of the device can be

E, T.

additional fixed scales of E and T are located.

The subject of the patent.

1. A countable logarithmic instrument with multi-slide rule bars, characterized by the fact that it consists of a number of DE boards, on which both sides are drawn in several rows on a logarithmic scale, and with a number of projections F bearing on each side a number and the limits of the applied scales, which the plates during their storage remain pushed in the order of their allocated numbers in the LAN shop, the upper board of which is equipped with two plans that have G, /, H and K marks corresponding to the extreme divisions of the scales inserted into I am waiting for them when the rulers work, and along which the LM slider can move.

2. In the counting logarithmic instrument described in Section 1, use the LM slider equipped with the PQ and P edges (E devices for addition.

3.B characterized in clauses. 1 p 2 of the counting logarithmic device, the use of additional fixed scales, T, T, located on the top board of the store and serving for additional calculations.