DE248332C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVs 248332 CLASS 74 #. GROUP

split disc.

Patented in the German Empire on March 7, 1911.

The present facility aims to speed up the audience from a distance of a vehicle. With their help, the police can reach the prescribed maximum speed of a motor vehicle safely and quickly or the railway official to check the speed of a passing vehicle To determine the train.

Devices that solve the same task

ίο are already known. Is with them between a vehicle axle and an axle running at a constant speed a differential mechanism or an electromagnet arranged to an optical or acoustic To produce a signal effect. The optical signal device according to the invention is simpler and cheaper than this apparatus and allows any speed levels to be clearly selected to display.

The subject of the invention consists of that which includes the actual apparatus Box, which can have different shapes (Fig. 1) and preferably behind the vehicle is attached, and a device which the movement of the wheel axle on the signals using the usual translations.

The apparatus is fixed in the box U _{1 and}

contains three parallel and in the same plane lying axes O ₁ , O ₂ , O ₃ .

The axis O ₁ receives its movement from the vehicle whose speed is to be determined. As long as the vehicle is moving forwards, this axis always rotates in the same direction and stands still when the vehicle stops or reverses.

The axis O ₂ can rotate in both directions, depending on whether it is driven by the axis O ₁ or O ₃ .

The axis O ₃ is driven by a clockwork, always in the opposite sense as O ₁ .

The wheel r _t , which is toothed over its entire circumference, is loosely attached to the axis O _{1 in} such a way that it is carried along by the friction like the pointer of a wall clock and can also be easily rotated in the opposite direction.

The wheel T ₁ ', which is partially toothed, is firmly connected to the axis o ₂ , namely on two sectors with the same number of teeth that are symmetrically diametrically opposed to the center. The non-toothed sectors have a radius so much smaller that they _{cannot touch the wheels ^ 1} and T ₁ " . The central angle of the toothed sectors of the wheel T ₁ is equal to or greater than the greatest speed angle of O ₁ or r _x . Furthermore, the sector r ₂ provided with ratchet teeth sits loosely on the axis o ₂ and engages the brake tooth Z ₁ only in the direction of the arrow 1. This sector r ₂ , in its place of which a complete wheel can also be used, has a concentric, arcuate slot h, in which the hook-shaped, is fixedly connected with the axis o ₂ arm d can move in both directions. Instead of the arm d is sufficient also on the wheel P ₁ 'mounted pin in place of, end i of the slot h one attached to the sector

Claims (3)

Touches the bar and thus transfers the movement. The wheel rim q, which has several colored fields I, II, III ... corresponding to the speed levels, and is provided with a counterweight g, is attached to the sector Y2 by several arms. One end of the spring fx also engages at the sector Y2 at the point P1, while its other end is attached to a point of the box lying in the extension of the axis O2. The wheel Y1 "is firmly connected to the axis o3. This has a toothed sector which has the same number of teeth as a sector of the wheel Y1 '. A concentric bar k is attached to the wheel Y1" whose position and length are determined by the Position of the toothed sector of Y1 ″ and the lever I is determined. The bar k is positioned in such a way that it presses the locking lever / downwards shortly before the teeth of the gears Y1 and Y2 ″ mesh (FIG. 2 ) and stop pressing it down before the wheel Y1 ″ has made another rotation angle w2 (see FIGS. 2, 3 and 4). The lever can be rotated about the pin p2 attached to the wall of the box U1. The longer arm of the lever carries the mentioned brake tooth Z1. The spring f2, which is attached to the box at point p3, presses on the short arm. The box U1 carries the window z on its front wall, on which the colored fields of the wreath q alternate. at the window ζ the color III can be seen, which d indicates the last speed achieved, and the vehicle starts at this moment to drive at speed II. Shortly before the teeth of the sectors of the wheels Y1 and Y1 mesh, the comb k presses the lever I downwards and removes the brake tooth Z1 from the area of the teeth of the sector Y2. As a result, the sector Y2 and the ring q connected to it are free and suddenly moved in the direction of arrow 1 by the tension of the spring ft and the influence of the counterweight g until the hook-shaped arm d stops the end i of the slot h So (Fig. 3). A moment later the action of the comb k ceases, the tooth Z1 engages again in the teeth of the sector Y2 and holds the color II, which is now visible in the window through the above-mentioned movement of the ring q, as long as the corresponding speed continues (Fig. 4). At the same moment that the action of the comb k on the lever I ceases, the teeth of the sector of Y1 mesh with those of the sector of Y1 and move Y1 'and at the same time the arm d in the direction of the arrow 1 and the wheel Y1 in the direction of arrow 2 (axis O1 rotates in the direction of arrow 1). This movement (FIG. 4) stops as soon as the wheel Y1 ″ can no longer act on the wheel Y1. Now the wheel Y1 is able to move the wheel Y1 through the axis O1 in the direction of the arrow 2 and thus at the same time the arm d (Fig. 2). There are now three possible cases: 1. If the speed increases, then the arm d will hit the end i of the slot before the comb k can influence the lever I. As a result, the ring q is also rotated in the direction of arrow 2, and the color corresponding to the highest speed appears in window z; 2. If the speed decreases, then the lever I is moved by the comb k before the arm d touches the end i of the slot h. As a result, the ring q moves in the direction of arrow 1 until the end of the slot i meets the arm d, and the color corresponding to the lower speed appears at the window ζ; 3. If the speed remains the same, then the lever I will just disengage the tooth Z ₁ when the arm d has reached the end i . As a result, the wreath q cannot move, and the same color remains visible on the window. Pate ν τ-An s PRu c η: Device for displaying travel speeds by means of a disc divided into colored fields, the setting of which is carried out by a shaft driven by the vehicle axle with variable speed and a shaft driven by a clockwork at constant speed, characterized in that a loosely on the shaft with variable speed (O ₁ ) Seated gear (Y ₁ ) that is dragged along by friction when driving forwards, at times a wheel (Y ₁ ) provided with diametrically opposed tooth segments and an arm (d) rigidly connected to it, which rotates at a certain distance from a stop (i) the colored-field disk (q ) sitting loosely on the shaft (o ₂ ) of the wheel (Y ₁ ) is brought or at higher speeds takes the latter against the action of a spring (f _t ) by a certain angle, while one with a corresponding toothed segment, of which rotating at a constant speed Shaft (o _s ) in the opposite direction as the wheel (Y ₁ ) driven wheel (Y ₁ ¹¹ J select end of each revolution by means of a locking lever (I ) controlled by a thumb (k) periodically allows or prevents the movement of the disk (q) by the spring (f _x ) , so that, depending on the coupling of the arm (d) with the disk (q) takes place before, after or just at the time the blocking is canceled, the disc (q) is either moved in the direction of the force of the spring (f _x ) or against it or not at all, thus indicating whether and to what extent the speed increases or decreases, or whether it remains the same. For this purpose ι sheet of drawings.