DE234892C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVl 234892 CLASS 74 «. GROUP

FRIEDRICH KASSEN and KARL STEDEFELDT in DÜSSELDORF.

Automatic wake-up device for hotels and similar rooms. Patented in the German Empire on April 12, 1910.

There are already various alarm devices known, which by means of a Clock will be activated automatically. Most such devices do the setting of the alarm times by a person entrusted with this directly on the clock itself. Alarm devices are also available became known, with which the guest from the room the time at which he

ίο wants to be woken up, you can adjust yourself. These latter devices, however, tend to suffer from the disadvantage that of everyone Room double lines to the clock must be laid, so that disproportionately many Wires become necessary.

According to the present invention, this drawback is avoided. The hand of the central clock is in the usual way with one of the clamps in the hotel rooms The alarm clock is connected and, as it rotates, grinds over the individual contacts, which with the corresponding contacts of the switching devices that are arranged in the hotel rooms and that can be set by their owners are conductively connected, see above that when a switching device is set to a specific alarm time or to a specific one Contact the alarm clock in question sounds as soon as the clock hand has reached the associated contact. Now to the number of to restrict lines to be routed according to the individual rooms and still over A larger number of alarm periods to be set are available according to the invention the dial contacts marked by the clock hand divided into several groups, of which the one group in a known manner with the after ■ the room switchgear leading lines are permanently connected, while the second and eventual further groups of dial contacts are led to contact pieces, which only by means of a special switching device with those leading to the room switchgear Lines can be brought into or out of connection.

For the attached schematic drawing it is assumed that waking up from 2:00 to 10:00 a.m., half an hour, is sufficient, and during this time, regardless of whether by day or night, the guest can relax without being dependent on a waiter or housekeeper to wake up. The relatively small number of wires required for this device is due to the fact that each connection point can be used for two times, both on the clock and on the switchboard in every guest room, so that ζ. Β. 2 o'clock and 6 o'clock or Y ₂ 2 ¹ J ₂ and 7 o'clock, etc. each pass through the same contact with the clock connection.

As the schematic shows, in this way there are nine lines for those already given above Times required, which are directly related to all the switchboards in the various Communicating guest rooms. From the contacts on the clock it is clear how

in the scheme it is assumed that only the times 6 ¹ Z ₂ , 7, 7V ₃ etc. to 10 V ₂ o'clock are directly connected to the nine wires. A tenth line, which must run through the entire hotel, starts from the clock's pointer axis. From this line branches off a wire in each room, which carries the current through the electric bell in the room to one side of the switchboard. A galvanic battery is switched on in this line at certain intervals, approximately after every second or third room, so that the current remains uniformly strong everywhere.

In the drawing, a means the switchboard as it is in each room on a slightly larger scale, while a ¹ , a ² , a ^{s represent the} same switchboards on a smaller scale, b is the plug-in contact, c, c ¹ , c ² and c ³ are the electric bells, d and d ¹ the batteries and e the clock, which shows the release device for the two time series at its lower end, f is a round rod made of non-conductive material, which is provided with nine collars g and a pin h carries, which, depending on the times from 2 to 6 or 6Y ₂ to 10V ₂ should be engaged or disengaged, is brought into the dotted position in which it lies behind a stop i and the rod f against the pressure of the Holds springs, or rotated ninety degrees to assume the position shown in full lines. Those at 2, 2 ¹ Z ₂ , 3 etc. and 6 Y ₂ , 7, 7 Y ₂ etc.

10 and 10Y ₂ shown small circles denote metal pins which are in good conductive connection with the corresponding contact points on the dial of the watch. On the pins at 2, 2 ¹ Z ₂ , 3 etc. to 6, highly conductive metal springs are attached, which only when the rod f is brought into the position indicated by dotted lines against the metal pins 6Y ₂ , 7, 7 Y ₂ etc. to 10 Y ₂ and in this case enable the clock to connect to the bells in the individual guest rooms at the appropriate times from 2 to 6. If the rod f is rotated by ninety degrees, the connections loosen automatically as a result of the springs and the clock can now only wake _{up automatically for the time from 6Y 2} to 10Y ₂ o'clock. It is therefore necessary to fully utilize the facility that between 6 and 6 ¹ Z ₂ o'clock and between 10 and ₂ o'clock and 2 o'clock the corresponding disengagement or indentation of the resilient connections from 2 to 6 is made. Of course, if you use 12 lines, you can easily set up the clock to wake up automatically every half hour at any time of the day or night. On the other hand, it would also be easy to achieve exactly the same purpose with an even smaller number of wires, only one would then have to attach double or triple disconnection devices to the clock and accordingly switch over to the clock more frequently in the course of the day.

Claims (1)

Patent claim: Automatic alarm device for hotels and similar rooms, in which the pointer of a clock, which is connected to the one terminal of alarm clocks located in the hotel rooms, slides over a number of contacts during its rotation, which with corresponding contacts of those arranged in the hotel rooms, through their Owner adjustable switching devices are conductively connected, so that when a switching device is set to a specific alarm time or to a specific contact, the alarm clock in question sounds as soon as the clock hand has reached the associated contact, characterized in that, for the purpose, fewer lines to the room switching devices to need, as wake-up times can be set, the dial contacts swept by the clock hand break up into several groups, of which one group is permanently connected in a known manner directly to the lines leading to the room switchgear, while the second group or the other n groups of dial contacts are led to contact pieces which can only be brought into or out of connection with the same lines leading to the room switchgear by means of a special switching device (f). 1 sheet of drawings.