DE274392C

DE274392C -

Info

Publication number: DE274392C
Application number: DENDAT274392D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- JVl 274392 KLASSE 83 b. GRUPPE- JVl 274392 CLASS 83 b. GROUP

HERMANN THRANDORF in DRESDEN-LÖBTAU und JOHANNES BRÜX in DRESDEN.HERMANN THRANDORF in DRESDEN-LÖBTAU and JOHANNES BRÜX in DRESDEN.

Elektrische Uhr mit springenden Ziffern. Patentiert im Deutschen Reiche vom 16. September 1913 ab.Electric clock with jumping digits. Patented in the German Empire on September 16, 1913.

Vorliegende Erfindung betrifft eine elektrische zeigerlose Uhr, welche in beliebiger Anzahl von einer Normaluhr aus vermittels eines Elektromagneten alle Minuten in Tätigkeit gesetzt wird und hierbei sprungweise die Zeit in Ziffern anzeigt. Das Neue liegt darin, daß die Ziffernscheiben bzw. die Ziffern selbst durch elektromagnetisch weitergeschaltete Daumenscheiben angehoben werden und dadurch in einem Fenster zwecks Anzeige erscheinen. Der Zweck dieser Vorrichtung besteht darin, daß das zum Weiterschalten der die Zeit anzeigenden Ziffern gehörige Werk äußerst wenig Raum beansprucht und für alle Ziffergrößen sich eignet und als Zimmer-, Hof- oder Turmuhr hergestellt werden kann.The present invention relates to an electric pointerless clock which can be used in any Number of minutes in action from a normal clock by means of an electromagnet is set and shows the time in digits by leaps and bounds. The new thing is that the dials or the digits themselves are switched through electromagnetically Thumb discs are raised and thereby appear in a window for display purposes. The purpose of this device is that the movement associated with advancing the digits indicating the time takes up very little space and is suitable for all digit sizes and as a room, Court or tower clock can be made.

Beiliegende Zeichnung veranschaulicht den Erfindungsgegenstand durch sechs Figuren:The accompanying drawing illustrates the subject matter of the invention by means of six figures:

Fig. ι ist eine Vorderansicht ohne Deckscheibe. Fig. Ι is a front view without a cover plate.

Fig. 2 stellt die auf einer gemeinsamen Achse sich lose bewegenden ziffertragenden Hebel dar.Fig. 2 shows the digit-carrying levers moving loosely on a common axis represent.

Fig. 3 ist die Seitenansicht, welche die bei Fig. 2 angegebenen Hebel veranschaulicht.FIG. 3 is the side view illustrating the levers indicated in FIG. 2.

Fig. 4 zeigt die zum Aufheben der unter Fig. 2 angegebenen Hebel dienenden Ansatzscheiben. FIG. 4 shows the shoulder washers used to cancel the lever indicated in FIG. 2.

Fig. 5 und 6 zeigen die Einrichtung zur Schaltung der Zehnerminuten und der Stunden. 5 and 6 show the device for switching the tens of minutes and the hours.

Die Hubvorrichtung besteht aus den drei Teilen a, b, c (Fig. 3), welche sich auf einer Achse lose drehen können. Der erste Teil a ist für den Hub der zehn Einerminutenhebel e bestimmt. An der linken Seite befindet sich das Schaltrad a² mit zehn Zähnen, welches durch einen Hebel mit Gelenk η direkt mit dem Elektromagneten m, welcher an dem Gestell w angebracht ist, in Verbindung steht und durch die Anziehung des Hebels η an den Magneten m um ein Zehntel auf seiner Achse herumgedreht wird. Mithin ist der Teil α bei zehnmaligem Anziehen des Magneten einmal um seine Achse gedreht worden. In der Ruhezeit, von Minute zu Minute, lagert der Hebel η auf dem mit Filz oder Weichgummi versehenen Anschlag χ (Fig. 1), welcher an dem Gestell w angebracht ist. Für die Zuleitung des elektrischen Stromes, welcher den Elektromagneten m alle Minuten in Tätigkeit setzen soll, sind die beiden Polschrauben u in einer aus Hartgummi oder Vulkanfiber bestehenden Platte eingesetzt. Die Platte ist an der Außenseite des Gestells w isoliert aufgeschraubt. Der zweite Teil b (Fig. 3) ist für den Hub der sechs Zehnerminutenhebel f bestimmt. An der linken Seite des Hubteiles b ist das Schaltrad b² mit sechs Zähnen befestigt. Ist der Teil a um neun Zehntel herumgedreht, so nimmt er bei dem zehnten den Teil b um ein Sechstel mit, und zwar durch den Druck des an der rechten Außenseite des Teiles α festgeschraubten Stahlblöckchens h (Fig. 5) auf den Transporthebel *'. Der dritte Teil c ist für den Transport der zwölf Stundenhebel g. Ist die Hubvorrichtung b um fünf Sechstel herumgedreht,The lifting device consists of three parts a, b, c (Fig. 3), which can rotate loosely on an axis. The first part a is intended for the stroke of the ten one-minute levers e . On the left side is the ratchet wheel a ² with ten teeth, which is directly connected to the electromagnet m, which is attached to the frame w , through a lever with a joint η , and by the attraction of the lever η to the magnet m a tenth is turned around on its axis. As a result, the part α has been rotated once about its axis when the magnet was attracted ten times. During the rest period, from minute to minute, the lever η rests on the stop χ provided with felt or soft rubber (FIG. 1), which is attached to the frame w . For the supply of the electric current which the solenoid is to put all of m minutes in activity, the two pole pieces are used and in a group consisting of hard rubber or vulcanized fiber board. The plate is screwed insulated on the outside of the frame w. The second part b (Fig. 3) is intended for the stroke of the six ten-minute levers f . On the left side of the lifting part b , the ratchet wheel b ^{2 is} attached with six teeth. If part a is rotated by nine tenths, it takes part b by one sixth with the tenth, namely by the pressure of the steel block h screwed to the right outside of part α (Fig. 5) on the transport lever * '. The third part c is for the transport of the twelve hour lever g. If the lifting device b is turned by five sixths,

Claims

so in the sixth it takes part c with it by a twelfth, which is also done by the pressure on the transport lever I of the steel block k screwed tightly to the right outer side of part b (FIG. 6). The three parts a, b, c each have a strong round brass disc on the outside left and right. Between these are just a few large smooth steel discs, namely at a 9 pieces, wherein b 5 pieces,

ίο at c 11 pieces. Between these in turn are smaller strong steel disks each having a lug, and that at a 10 pack, wherein b 6 pieces, wherein c 12 pieces. These shoulder disks α ¹ , b ¹ , c ¹ (Fig. 4) are arranged so that they are offset according to the number. These shoulder washers are used to cancel the levers e, f, g (Fig. 3 and 4). All panes are riveted together. The three lifting rollers a, b, c are created by these connections. The levers e, f, g as digit carriers, which are loosely movable on a common axis and provided with a shoulder, are separated from one another by round brass disks and installed in such a way that their approaches are in the path areas of the lifting thumbs of the disks a, b, c . Through the approaches of the disks a ¹ , b ¹ , c ¹ (Fig. 3), the number levers e, f, g are lifted up to the horizontal position, whereby the time is displayed. The approaches of the levers e, f, g (Fig. 1) have been doubled in their strength by folding, firstly to give a safe guidance and secondly to prevent possible wear. All three parts a, b, c (Fig. 3, 5 and 6) each have a locking hook fi, q, r ^{on their switching wheels α 2} , b ² , c ^{2 (Fig. 3, 5 and 6).} The locking hooks t and s (Fig. 5 and 6) of the transport levers i and I, which like the others are provided with locking springs, are only used to partially transport parts b, c. The not canceled digit levers e, f, g are sloping downwards and rest on the stops ν provided with felt or rubber pads. The numbers can of course be kept significantly larger, which makes the electric handless clock also suitable for railroad operations. But then a stronger work is required. The digits indicating the time appear between two glass plates. The inner glass plate is made of frosted glass, which allows interior lighting and thus enables the time to be read even in the dark. The outer glass plate consists of colorless, transparent glass, which serves as protection and to which the housing protecting the work is attached.

Patent-Α ν saying:

Electric clock with jumping digits, characterized in that the digits (e, j, g) are pivoted to a shaft and can be rotated by means of a thumb (e ¹ , f ¹ , g ¹ ) through a number of cam disks (a ¹ , b ¹ , c ¹ ) are raised one after the other, of which the lifting disks (a ¹ ) intended for the minute change are turned further directly by an electromagnetic gearbox (m, n) , while the lifting disks for the tens of minutes (b ¹ ) and for the hours (c ¹ ) can be moved by decimal switches.

For this purpose ι sheet of drawings.