DE490703C - Device for electromagnetic synchronization of the gear of pendulum clock systems - Google Patents

Description

Device for electromagnetic synchronization of the gear of Pendulum clock systems The present invention relates to a device for electromagnetic Keeping the pointer mechanism synchronized by pendulum clock systems, which allows simple Allocate the rate of the clock electromagnetically for both lead and lag rules. The arrangement is made such that the incremental device for the Pointer, essentially a ratchet wheel and a transport pawl, so under the The influence of the pendulum movement is that only part of the pendulum oscillation is required to advance is harnessed while another part of the oscillation changes the pawl moves the number of pawl steps required to advance the pointer at the next partial oscillation are to be made. It is only used to regulate the rate of the clock necessary, the stepping path, d. H. the number of ratchet steps compared to a toranal To increase or decrease the number of steps.

On sheet i and a are the execution documents; games of the invention shown. Sheet i shows an exemplary embodiment of the present invention, omitting essential parts Invention.

To carry out the invention, it is necessary to connect the pendulum only positively to the indexing device F, so that the indexing device F can be stopped and lifted at any point when the pendulum P oscillates to the right. The indexing device consists firstly of the ratchet wheel S for indexing the clock's pointer mechanism and the contact device Na and N2 and secondly the pawl T, which is attached to the pivot point D swinging lever H , under the influence of Weight C 'r rests on the pendulum P. Appropriately, one forms these lifting devices as stops and brings them to the electromagnetic control depending on the armature of the control magnets R and V. If you want z. If, for example, the clock remains behind in advance, the stop p is actuated, which limits the Mitnaluneweg of the indexing device compared to the normal path and slows down the clock for the duration of the Reg els.tromstoß. The reverse applies in the event that the clock lags behind a normal clock U.

The control current surges take place in certain regular time segments and excite the corresponding electromagnets via cam-controlled working contacts r and V, which are under the influence of the rate of the clock. If the clock goes ahead, it is the K:) ntaktv is still activated by the cam disk Ni, and the control current surge, the is sent over the line from a standard clock U, takes the following route -`-, Line a, contact v, control electromagnet V, line b, standard clock contact u, -. at If the watch is left behind, the electromagnet R is excited via contact r. The energized electromagnet attracts its armature and brings the limit stop p or g of the continuation switch in its working position opposite the lifting pin c at the stepping direction F. If, on the other hand, the clock is synchronized with the regulating one Normal clock U, both normally open contacts Y and are for the duration of the control current surges v by suitable design of the cam disks. Ni and N2 in rest position, see above that the movement of the clock is not regulated and the anchors are in their rest position remain.

The actual control device, electromagnet with armature, can be anything be trained. An embodiment is shown schematically in Fig. I. Here are two Electromagnets R and V are provided, which are excited separately and attract their armature and thus either increase the entrainment path (anchor V) or limit the same (Anchor R). If the anchor has fallen off, the clock is set correctly by a stop g on anchor V.

Fig.2 to 4. show other embodiments of the invention: One embodiment (Fig. 2) prefers only one electromagnet R, V and a single armature, the two According to the work position, two different excitations of the electromagnet are used obtained, which are .erzielt in a manner known per se. The two working positions are determined by two different directional forces (spring i and 2) in such a way that to achieve one working position a weak one, to achieve the second working position a strong excitation of the magnet is necessary.

The use of two differently difficult to move anchors 1 and s on a magnet with two different excitations is another embodiment according to Fig. 3. If the electromagnet R, V is weakly excited, only the light armature L may be actuated, which removes the stop g, which limits the normal driving path, or increases the 1 driving path in another way and pre-regulates the clock. In the case of strong excitation, on the other hand, both armatures L and s are actuated, the heavy armature holding back the indexing device with its stop p and thereby slowing down the rate of the clock.

Figure 4 shows two other embodiments, according to which only one armature is provided for two control electromagnets, which can be designed as a one-armed or two-armed lever (shown in dashed lines) and which is held in the rest position by a directional force (springs t, it). The working position is determined by the two end positions when the control electromagnets R and V are excited, which are to be arranged as shown in Fig. 4.

Claims (2)

P ATENTAN SAYS i. Device for electromagnetic synchronous keeping of the pointer mechanism of pendulum clock systems, in which the continuation device of the Pointer mechanism is taken along by the pendulum, characterized in that the temporary correction of the movement of the hands by reducing the size and that of following them by increasing the ratchet path of the switching device is effected. 2. Eirrichtung according to claim i, whose actuation 1g in one sense or the other depending on. the necessary hand movement correction takes place, marked by electromagnetically controlled stops for reduction or expansion the ratchet path. _ 3. Device according to claim 2, characterized by two Electromagnets (V, R) with two anchors (p, g) serving as a stop, which are inserted into the Grip the area of the switch path (Fig. I). 4. Device according to claim 2, characterized by an electromagnet (R, V) with one serving as a stop and provided with two differently strong return-CLOSED springs (i, 2). Anchor, which two working positions according to the strong or weak excitation of the control electromagnet (R, V) has (Fig. 2). Device according to claims 2 and 4 with an electromagnet, characterized by two anchors that are difficult to move and serve as a stop, with weak excitation of the electromagnet only the light armature is actuated will, however, when the electromagnet is strongly excited, both armatures will be actuated (Fig.3). 6. Device according to claim 2 and 3 with two -Elektromagneten: characterized by a common, as a stop for determining the size of the switching pawl travel serving anchor (Ablf4) such that the working positions of the anchor on both sides its rest position.