DE90943C - - Google Patents

Description

IMPERIAL

PATENT OFFICE ^

PATENT LETTERING

CLASS 20: Railway operations.

Patented in the German Empire on February 11, 1896.

The object of the present invention is a dog clutch in which the horizontally swinging claw pops open automatically as soon as the sleeping hook, which the same holds in closing position, on which engagement is brought. The essential feature of the same consists in the fact that, through the peculiar arrangement of the moving spring, this is equally true . an overvoltage of the same and an insufficient voltage of the same, which is both an existing disadvantage of the previous arrangements is to be avoided.

Fig. Ι is a horizontal section of the complete Coupling in closed position.

Fig. 2 is a horizontal section of the complete coupling in the open position.

Figure 3 is a vertical section on line 3-3 of Figure r.

Fig. 4 is a bottom view of the coupling; partly in section.

Fig. 5 is an isolated bottom view of the pawl and opening lever.

Fig. 6 is a diagram of the lower side of the opening lever.

FIG. 7 is a horizontal section through a modified form of the arrangement in FIG. 1 when closed.

Fig. 8 is the same section in the open state

FIG. 9 is a vertical section on line 9-9 of FIG. 7.

In the pulling head A , the claw B is arranged swinging on a vertical bolt. Her arm b is held by the hook Schlief C, which is bethätigt by the drawbar C ¹ or other suitable device.

Below the arm b , the opening lever D is mounted in a recess i (Fig. 3) in the base plate of the pulling head A. It rotates around the vertical bolt d and carries the upward-going pin or shoulder d ' ² at the end of its long arm, and at the end of its short arm the downward-going pin f. With its vertically upward-going pin d ² lies down the opening lever against the back of the lever b and with its vertically downward going pin / in a groove on the face of the bolt E. The bolt E is stored in a channel G below the base plate of the pulling head, and the base plate is for this reason with a slot f ^l , which allows the downward reaching pin f the necessary movement. The bolt E is actuated by a helical spring H mounted in the channel G and wound around the bolt E. By placing the spring H and the bolt E in a channel G below the tension head A , space is obtained for them which enables the spring H to be made sufficiently large to give it the necessary force with sufficient play.

The mode of action is as follows:
When the claw B is brought into the closing position in the usual way by the collision of two carriages, so that the sleeping hook C fixes the lever b , the pressure of the moved

Claims (2)

Lever b on the approach d ^{2 of} the opening lever D, the latter rotated around the bolt d. As a result, he presses the pin f attached to his short arm against the bolt E and thereby compresses the spring H. The spring H is maintained in this tension as long as the sleeping hook C fixes the arm b of the claw B. As soon as the sleep hook C is brought out of engagement with the lever b ^{by the train G 1} or in some other way, the spring H forces the opening lever D to rotate by pressing against the pin f. The lever presses with its extension d ' ² against the back of the lever b and thereby causes the claw B to move into its open. Position swings back. Since that arm of the opening lever D, which acts with its extension d ' ² on the arm b of the claw B , is significantly longer than the arm which presses with its pin f against the spring bolt E , so is sufficient for the required deflection of the lever D a relatively small change in the shape of the spring H, so that too much tension in the spring H is avoided if the lever D is moved sufficiently far. A modified form of the above arrangement is described in FIGS. 7 to 9, the deviation of which is that the opening lever D ' ² D ³ does not oscillate about a vertical but about a horizontal axis d ^3. His long arm Z) ² is vertical in the closing position, his short arm D ^{3 is} horizontal. The vertical bolt E ¹ acts on the latter and is actuated by the vertical spring H ^1. The spring acts here in a vertical movement path, similar to the one described above in a horizontal path. Patent claims: ι. An automatic coupling claw for railway vehicles, characterized in that a horizontally swinging opening lever (D ) mounted under the sleeping hook (C) under the action of a spring (H) ^{mounted under the pulling head:} (A ) with a shoulder ^ (d ² ) so presses against the back of the lever (b) of the claw (B) that, as soon as the sleeping hook (C) is brought out of engagement, the claw (B) swings back into its open position. 2. A claw of the type indicated by claim 1 which pops up automatically; characterized by an opening lever (Ί) ² D ³ ) on a horizontal axis (d ³ ), which is actuated by a vertical spring (H ¹ ) mounted to the side of the pulling head (A) . 1 sheet of drawings.