US2738703A - Watch dial projecting device - Google Patents

Description

March 20, w ZQRN v WATCH DIAL PROJECTING DEVICE Original Filed June 14, 1951 United States Patent WATCH DIAL PROJECTING DEVICE Werner Zorn, Berlin-Zehlendorf-West, Germany Original application June 14, 1951, Serial No. 231,458. givigsg and this application June 27, 1952, Serial No.

4 Claims. (CI. 88-24) This application is a division of original application, Serial No. 231,458, filed June 14, 1951.

The present invention relates to a watch dial projecting device for making visible an image of a watch dial onto the ceiling or one of the walls of the room wherein the device is standing. By such a device an enlarged picture of the watch dial may be produced.

Watch dial projecting apparatus are known per se. At these known devices, however, it is diflicult to place on the same device a watch as well as a wrist-watch. Contrary to that, the device according to this invention has the advantage of a safe and, at the same time, simple method of placing the watch or wrist-watch. Furthermore, there is known also a projecting device for watches as well as wrist watches. The device according to the present invention discloses an advantageous embodiment of the known apparatus. The removable plate serving as a watchcarrier is, at the same time, one of the walls of the projecting apparatus.

The device according to this invention and further details will be described more exactly taking into account the accompanying drawings:

Figs. 1 and 2 show the watch dial projecting device in accordance with the invention; Fig. 1 shows a schematic elevation and Fig. 2 a vertical section of the apparatus.

Fig. 3 shows the back-plate serving as watch-carrier without the other parts but including an additional removable watch clamp.

In Fig. 1 part 13 is the nice-looking case with the projection objective 14. Part 15 is the back-plate serving as watch-carrier. It is removable backwards in the direction of the broken lines and can be connected in a suitable manner, e. g. by means of a slide bar or a hinge, with the case. Part 16 is a watch placed on the backplate which serves as watch-carrier, e. g. a wrist-watch. It will be profitable to connect the back-plate 15 only at one side with the case itself in order to allow an easy placing of the watch, particularly if, for instance, a wristwatch with an always closed watch strap is to be placed in the device. It is to be recommended to round the upper and lower part of the back-plate for better holding the watch chain or watch strap placed across it. This watch chain or the watch strap will be clamped and thereby fastened between the case walls as soon as the back-plate 15 has been pushed in for closing the device.

This can be clearly recognized from Fig. 2. Inside of case 13 the light of the bulb 18 is thrown by means of a reflector 19, which at the same time protects the mirror 20 and the objective 14 from being hit by direct light rays, to the watch 16, then reflected by the dial plate to the mirror 20 and from there to the objective 14. Part 21 is a slide bar which is fixed at one side of the removable back-plate 15' and which can slide in the guide 24. The cross-section of the back-plate 15 is preferably kidneyshaped in order to render possible an easy placing of the watch. If the case is being closed the wrist-watch strap or the watch chain is clamped by the rounded ends of the back-plate 15 and the correspondingly designed counterparts 22 and 23 and thus fixed. Owing to the rounded ends of the back-plate and its counterparts it will be achieved, too, that after the watch has been placed and the backplate 15 pushed forward, the light of the lamp 18 cannot get outside. Back-plate 15 and its counterparts 22 and 23 should be suitably clad with a material which has a rough surface, e. g. velvet ribbon, in order to prevent, by the increased friction, the sliding off of the watch chain respectively the watch strap.

Fig. 3 shows the back-plate 15 serving as watch-carrier without the other parts. In this drawing the back-plate carries an additional watch-carrying device 25 which can be shifted upwards. This holding device is designed as a trough into which the rim of the watch tits and which is open in the middle (as shown in the drawing) or which consists of two parts in order to give space, at a wristwatch, for the lower half of the watch strap. This holding trough is fitted at both sides with an extension piece 26 which can be shifted at will in a slot in the side-wall of the back-plate 15. This holding device 25 can be made out of metal, wood, plastics or some other suitable material.

Case 13 and back-plate 15, too, can be made out of metal, wood or plastics. Plastics would be particularly recommendable for giving the device a pleasant and elegant appearance.

The main advantage of the device disclosed by the present invention is the simple but eflicient design of one of the case walls which is employed as a watch-carrier. Thereby it is rendered possible, to place all kinds of watches or wrist-watches in this watch-stand which is to be employed preferably on bedside-tables.

The light source 18 is fed either from the main supply or from a battery which is preferably housed inside the device itself.

Instead of the watch-holder shown in Fig. 3, which consists of a trough or parts of a trough, one can also use pins for holding the watch which are adjustable in the vertical and horizontal directions, e. g. two pins are provided which can be inserted, according to the shape of the watch, into different holes provided in the backplate. These two pins, which are adjustable by employing different holes, should be advantageously somewhat inclined upwards; they represent a particularly simple adjusting device for fixing the position of the watch.

I claim:

1. Watch dial projecting device for making visible an image of the dials of watches as well as wrist-watches onto the ceiling or one of the walls of a room, comprising a casing, a projection objective, an electric bulb and a mirror located in said casing for producing an image of said dial through said projection objective, and means for changeably holding a time piece with its dial exposed to the light rays of said electric bulb in the interior of the casing, said means for changeably holding the time piece consisting of one of the walls of said casing which is fastened to at least one bar and movably arranged with respect to said casing, said movable wall being adapted to carry a watch on its interior surface and to let project the dial of a watch placed on the interior side of said movable wall pushed into the casing by said projection objective, said movable wall being further adapted to clamp the watch chain of a common watch as well as the watch strap of a wrist watch between the walls of said casing by pushing the movable wall into the casing.

2. Device as claimed in claim 1, wherein the movable wall for changeably holding the watch is rounded at its upper and lower side and nearly kidney-shaped in its cross-section.

3. Device as claimed in claim 1, wherein the movable wall for changeably holding the watch as well as the counterparts of the wall are clad with a material having a rough surface.

1 4. Device as claimed in claim 1, wherein a trough is 813,836 Smith Feb. 27, 1906 mounted on the inner surface of the movable wall for 2,018,015 Fahrney Oct. 22, 1935 supporting a common watch as well as a wrist watch. 2,178,637 Link Nov. 7, 1939 2,351,238 Teuber June 13, 1944 Refererices Cited in the file of this patent 5 2,436,425 Loewe et a1, Nov 1, 1949 UNITED STATES PATENTS 740,433 H irth Oct. 6, 1903

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