SU1534536A1 - Telegraph key - Google Patents

Abstract

This invention relates to electrical engineering and is intended to generate Morse code signals. The purpose of the invention is to improve the ergonomic characteristics by adjusting the key triggering forces depending on the condition of the finger and the hand of the operator and improving the quality of the transmission. A telegraph key consists of a base 1, an equal-arm core 2 mounted on the axis of rotation 4 and on an elastic element 5 in the form of an elastic tape that balances the measles 2 in the initial position, two keys 13 of the control keys. the elastic element by means of adhesive tapes Vilkro 8 and 9, installed respectively on the elastic element and on the base. The device generates a Morse code signal by alternately pressing the keys 13. 2 Il.

Description

FIG. one

This invention relates to electrical engineering and is intended to generate Morse code signals.

The purpose of the invention is to improve the ergomic characteristics by adjusting the key activation forces depending on the conditions of the operator’s fingers and hand and improving the quality of the transmission.

Figure 1 shows the telegraph key, a longitudinal section; figure 2 - the same view. from above.

The telegraph key contains a base 1, equal-shouldered measles 2 with two movable electrical contacts 3 at the ends of its rocker arms, mounted on the axis of rotation 4 and an elastic element 5 in the form of an elastic tape mounted on axles 6 with balancing sleeves 7 and at the ends of which the Vilkro 8 adhesive tape is located, fastened with the Vilkro 9 adhesive tape, mounted on the bottom of the base, being the control unit for tensioning the same elastic element 5, plate of fixed electrical contact 10 connected to electrical outlet 11, and electric Skog output 12 connected electrically through the axis 4 and the armature Powo company with moving key 2

electrical contacts 3, forming a parallel electrical connection of the moving and fixed contacts, two keys 13, located at the ends of the arms of the key box.

The telegraph key works as follows.

Before starting work, adjustment of the key actuation force is carried out in relation to the features of the fingers and hand of the operator, carried out by tensioning the elastic element

5 0 5 0

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five

5 using adhesive tape Vilkro 8 and 9.

When pressed alternately on one of the keys with 13 fingers of the operator’s hand, the core 2 turns on axis 4 and closes the electrical circuit formed by electrical output 12, rotation axis 4, key 2, electrical contact 3, plate-electrical contact 10 and electrical output 1 1 „

When the force of the finger is removed from the key 13, the core 2 returns to its original position, through impact. outside of it the elastic element 5 through the axis of the support 6 and there is a break in the electric circuit.

Claims (1)

Invention Formula A telegraph key containing a base, equal-shoulder measles mounted on an axis on a base, movable contacts on the core and stationary contacts on the base, interconnected in parallel with thin elements, key controls and an elastic element, in order to improve ergonomic characteristics and improving the quality of transmission, it is equipped with a tension adjustment unit for an elastic element, which consists of an adhesive tape attached to the end of the elastic element and on the base, axle supports, copulating cortex, and the elastic member is a flexible belt which encircles the axis-support bottom and the axis of rotation of the armature from above, and its ends project outwards of a base. eleven / 73 w / .z