DE213543C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

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PATENT LETTERING

■ - Yes 213543 CLASS 63 b. GROUP

Dr. PHILIPP HIRSCH in PANKOW-BERLIN.

Device on trolleys to protect against unauthorized use.

Patented in the German Empire from October 1st, 1908.

The invention relates to a device on trolleys to protect against unauthorized persons Use, consisting of a self-actuated by the revolutions of the cart wheel influenced chimes and made visible signs.

It often happens that business cars with valuable cargo or private cars, automobiles or the like. Are stolen if

ίο the driver of the car for a short time left unsupervised. Such a car is therefore a particularly suitable object to steal because he is with his horses. or possibly with its contents of considerable value, and because the thief in at the same time finds the best means of transport to get himself and his prey in quickly Bring security. On the other hand, it can be, for. B. in company cars, often not avoid the driver of the car during the delivery of parcels for a while without supervision.

Devices are already known in which the unauthorized use of a car this is to prevent automatically visible and audible characters through the Revolutions of the wagon wheel are switched on as soon as the wagon is unauthorized Person is being driven.

In these known devices, however, it was not taken into account that it is sometimes necessary is to move an unsupervised car a short distance, e.g. B. to release a driveway, or to to make room for another car.

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Even with such displacements by a few meters, the known devices the signals triggered. Therefore, these devices were and have not been useful not naturalized.

The device forming the subject of the present invention eliminates this drawback eliminated.

Now, observing the foregoing, there is the essence of. Invention in that a special switching mechanism is provided for giving the visible and audible signs is, which is indented by the driver from a lockable point can be and after a certain number of revolutions lets the characters work.

In the drawing, the invention is shown in an exemplary embodiment.

Fig. Ι is the view of one with the device provided business car,

Fig. 2 is the associated plan.

Fig. 3 shows on a larger scale in elevation and

4 shows the device for making an inscription visible in plan.

FIG. 5 shows, on a larger scale, a side view of the one shown in plan view in FIG Disengaging device, seen in the direction of arrow I.

A finger b is attached to the hub of a wagon wheel α and can engage between the teeth of a sector-shaped star wheel c when the wagon wheel rotates. The teeth are not distributed over the entire circumference and the wheel is for example with

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three consecutive teeth drawn. The sector-shaped star wheel c is rotatably mounted on a slide d; a spring e tries to turn the wheel c up to the stop on a stop pin f. In Fig. 2 the carriage d is drawn in that position in which the star wheel c is in engagement with the finger b attached to the wagon wheel hub. ■ By means of a linkage g , the

ίο slide are withdrawn, then the star wheel c and the finger b disengage. The linkage g is pushed into both end positions by a lever h. The lever h sits inside a lockable box. The key to this box is in the possession of the driver.

If the driver has to leave the car unattended, he brings the carriage d into the position shown in FIG. 2 by means of the lever k. If the car is now driven further by an unauthorized person, the star wheel c is rotated by the finger b attached to the car wheel hub, namely by a certain angle of rotation with each car wheel rotation against the action of the spring e. Below the wheel c , pins k are attached which, when the wheel rotates , step behind the resilient locking hook I and thereby prevent the sector from being pushed back by its spring e. As a result, with the next rotation of the cart wheel α , the finger b hits the next tooth of the star wheel c and rotates the same by a further distance.

Only after a number (in the illustrated embodiment three) teeth of the star wheel c has been gripped by an equal number of revolutions of the wagon wheel and the wheel has been rotated accordingly, the same hits against a displaceable pin m and moves it against the action of a spring in the direction of the arrow II. - The pin m is connected by a pressure or tension member, in the illustrated embodiment by the tension member n, to a ratchet 0 (see Fig. 2, 3 and 4) and pulls this ratchet 0 out of engagement with a locking member φ a board q out. Table q is on. suitable place of the car, z. B. at the front of the coachman's seat as in the illustrated embodiments, or on the rear side of the car in a box r slidably mounted. If the lock between the ratchet tooth 0 and the locking member fi attached to the panel q is released, the panel q falls due to its weight (or as a result of spring pressure) in such a position that a large inscription attached to it, e.g. B. "Stolen" is visible. By tightening the ratchet tooth 0 , the same is brought into contact with a resilient contact s at the same time, thereby closing the circuit of an electric bell u. Since the star wheel c is held locked in its last position by a pin k and the ratchet I , the pin m also remains in its shifted position, and the contact between ratchet tooth 0 and contact spring s also remains. Since the wheel c, the slide d, the pin m, the ratchet I etc. sit in a housing that is not accessible from the outside and the tension member η is also attached in such a way that it is not accessible from the outside, and on the other hand the box in whichever lever h is located is locked, the bell cannot be turned off.

Only the driver is able to turn off the bell. After unlocking the car body, he moves the lever h 80 into the other end position and thereby pushes the carriage d back in the direction of arrow III by means of the linkage g , so that the wheel c disengages from the finger b . When the slide is pushed back, the hook t attached to the slide engages (see FIGS. 2 and 5) over the resilient locking hook I and pushes it downwards; as a result, the locking of the pins k is released , and the star wheel can follow the action of the spring β and return to its initial position. Likewise, the pin m and the ratchet 0 return to their initial position. If the panel q is raised accordingly, it is locked again by the ratchet 0.

The fact that only after several car wheel revolutions the electrical contact for the bell is closed and the board with the inscription is triggered, is achieved, that the car can experience displacements by a distance corresponding to several car wheel revolutions without triggering of the audible and visible signal.

Instead of driving the bells electrically, the device can also be set in such a way that that a bell is driven by the wagon wheel itself, the drive of which after setting the lever by the wagon- " leader is automatically engaged after a few revolutions of the wagon wheel.

Instead of engaging the rear derailleur (star wheel c) by hand using a linkage, you can the engagement can also be done electrically, by the driver using a special key closes an electrical circuit. Likewise, the triggering the scoreboard can be done electrically instead of mechanically.

Claims (7)

.Patent claims: i. Device on trolleys to protect against unauthorized use, consisting of from a bell that is automatically influenced by the revolutions of the wagon wheel and from a sign made visible, characterized in that for this sign a switching mechanism is provided, which by the driver means a special key or from a location that can be locked with a key can be indented, and which is switched on after ίο its indentation from the wagon wheel after a certain number of wheel revolutions lets the characters work. 2. Apparatus according to claim i, characterized in that the engageable switching device consists of a wheel (c) rotatably mounted on a sliding carriage (d ) with some teeth lying together, which by a pin (b) o, the like attached to the wheel hub. is switched further with each wheel revolution and at a certain angle of rotation with the front tooth hits against a resilient pin (m) through which a panel with a corresponding index. script is triggered and a chime is indented at the same time. 3. Apparatus according to claim 1 and 2, characterized in that the feed of the star wheel (c), which is under the action of a helical spring (e) , effected with each rotation of the wagon wheel, by a locking hook (I) and pins (k ) of the star wheel (c) existing lock is held. 4. Apparatus according to claim 1 to 3, characterized in that the resilient pin (m) is connected by a tension or pressure member (n) with a locking tooth (0) which consists of a locking member (j>) of a panel (q) is pulled out, which falls as a result of its own weight or as a result of spring pressure in such a position that an inscription attached to it becomes visible. 5. Apparatus according to claim 1 to 4, characterized in that a resilient contact (s) is attached via the locking tooth (0) , through which the circuit of an electric bell is closed when the locking tooth (0) is withdrawn. 6. Apparatus according to claim 1 and 2, characterized in that the carriage (d) is connected by a linkage (g) to a hand lever (h) which is housed in a lockable box. 7. Apparatus according to claim 1, 2 and 3, characterized in that the carriage (d) is provided with a hook (t) , weleher when pushing back the carriage over the resilient locking hook (I) engages and pushes it down, whereby the The locking of the pins (k) is released and the ratchet wheel returns to its initial position. 1 sheet of drawings.