DE81764C

DE81764C -

Info

Publication number: DE81764C
Application number: DENDAT81764D
Authority: DE

Description

KAISERLICHESIMPERIAL

K PATENTAMT.K PATENT OFFICE.

KLASSE S7: Photographs.CLASS S7: Photographs.

Die den 'Gegenstand vorliegender. Erfindung bildende Kamera gehört zu den sogenannten »Geheim-Kameras« und bezweckt eine möglichste Reducirung des Rauminhalts, ungefähr auf denjenigen einer Taschenuhr, und eine billige Herstellungsweise derselben. Auf beiliegender Zeichnung ist: Fig. ι eine Vorderansicht der Kamera, Fig. 2 eine Seitenansicht derselben, Fig. 3 eine Vorderansicht der Kamera mit abgenommenem vorderen Deckel in der Gebrauchsstellung. . . .The 'subject at hand. invention The visual camera is one of the so-called »secret cameras« and aims at the most possible Reduction of the volume, approximately to that of a pocket watch, and an inexpensive way of making it. In the accompanying drawing is: Fig. Ι a front view of the camera, FIG. 2 shows a side view of the same, FIG. 3 shows a front view of the camera removed front cover in the position of use. . . .

Fig. 4 zeigt die Lage der einzelnen Theile in Ansicht im Augenblick der Exposition.Fig. 4 shows the position of the individual parts in perspective at the moment of exposure.

Fig. 5 ist eine Ansicht derselben Theile nach erfolgter Exposition, bevor die Kamera wieder zu einer neuen Exposition vorbereitet ist,Fig. 5 is a view of the same parts after exposure, before the camera again is prepared for a new exposure,

Fig. 6 eine Vorderansicht des Haupttheiles, die Verschlufsplatte abgenommen; die die Handhabe tragende Feder ist in punktirten Linien gezeigt.Fig. 6 is a front view of the main part with the shutter plate removed; the handle supporting spring is shown in dotted lines.

Fig. .7 ist ein Schnitt nach Linie x-x der ■Fig. ι bezw. 3,Fig. 7 is a section along line xx of ■ Fig. ι resp. 3,

Fig. 8 ein Schnitt nach \J\m&y-y der Fig. 4, Fig. 9 eine Hinteransicht des aus der Kamera 'herausgenommenen Kernes, die sich nach hinten erweiternde Oeffnung für die Exponirung der , lichtempfindlichen Film zeigend.Fig. 8 is a section on \ J \ m & y-y of Fig. 4, Fig. 9 is a rear view of the 'taken out of the camera core, which is pointing to the rear flared opening for the Exponirung the photosensitive film.

An der durch die vorstehend .benannten Figuren zur Anschauung gebrachten Kamera ; ■sind nachstehende Theile zu unterscheiden:At the by the aforementioned Figures brought to view camera; ■ the following parts are to be distinguished:

1. das. Objectiv und der konische Raum: hinter demselben,1. the. Objective and the conical space: behind the same,

2. die lichtempfindliche Platte und .die Vor- ■ richtung zur Drehung'derselben, .-2. the photosensitive plate and .the pre ■ direction of rotation of the same, .-

3. der Verschlufs und die Vorrichtung zum Spannen und Auslösen desselben,3. the lock and the device to Cocking and releasing it,

4. die Einrichtung zur Einstellung des Verschlusses für Zeitaufnahmen.4. the device for setting the shutter for time recording.

Die Kamera besteht aus einem Kern JS, auf welchem das Objectiv und der Verschlufs montirt ist, und einem um diesen drehbaren. Gehäuse 1 mit Vorderdeckel A und Hinterdeckel 7. . . ■ . .The camera consists of a core JS, on which the objective and the shutter are mounted, and one that can be rotated around it. Housing 1 with front cover A and rear cover 7.. . ■. .

Das Objectiv 15 ist in der Vorderseite am unteren Ende des Kernes B in der sich nach hinten gegen die Film 17 erweiternden Qeffr nung 16 gelagert (Fig..7 und 9). Die Film 17 bildet eine kreisrunde Scheibe; ein Schraubendeckel 7 preist dieselbe gegen den nach innen eingezogenen Rand des Gehäuses 1 (Fig. 7) derart, dais durch sprungweises Drehen des Gehäuses ι nebst Hinterdeckel 7 die einzelnen Segmente der Film nach einander hinter das Objectiv gelangen. .The objective 15 is mounted in the front at the lower end of the core B in the opening 16 widening towards the rear against the film 17 (FIGS. 7 and 9). The film 17 forms a circular disc; a screw cap 7 praises the same against the inwardly drawn-in edge of the housing 1 (FIG. 7) in such a way that by turning the housing abruptly together with the rear cover 7, the individual segments of the film get behind the objective one after the other. .

Die Einrichtung zur Begrenzung der Drehbewegung der Film wird bei der Behandlung des Verschlusses und der Vorrichtung zum Spannen und Auslösen desselben nachstehend näher erläutert.The device to limit the rotation of the film is used in the treatment the shutter and the device for cocking and releasing the same below explained in more detail.

Der Kern B, aus Aluminium, Holz, Kork oder anderem Material, ist in seiner Mitte !ausgehöhlt.; die so gebildete Aushöhlung 11 setzt sich, wie aus Fig. 6 und 8 ersichtlich, in einem Kanal 12 nach aufsen fort. :The core B, made of aluminum, wood, cork or other material, is hollowed out in its center! .; the cavity 11 formed in this way continues, as can be seen from FIGS. 6 and 8, in a channel 12 towards the outside. :

Der Kern B ist der Träger für alle den Verschlufs bildenden und zum Spannen und Ausr lösen desselben dienenden Theile.The core B is the carrier for all the parts forming the lock and serving for tensioning and releasing the same.

Auf der Vorderseite des Kernes B ist eine Metallplatte 13 befestigt, die eine Oeffnung 114A metal plate 13, which has an opening 114, is attached to the front of the core B

Claims

which is exactly in front of the lens 15. A central opening 18 is in front of the recess 11 of the core and is equipped with an upwardly directed cutout 19 (Fig. 6), which receives the bent free end of the spring 2 arranged in the cavity 11 of the body B, which the closure plate 21 and the handle 25 used to operate them carries. The closure plate 21 has a pawl 22 and in its surface near its pivot points openings 23 which receive the claws of the handle 25, while a cutout 24 is arranged near the lower edge which corresponds to the opening 14 of the plate 13 as soon as the handle 25 and with this the shutter plate 21 is pressed down. A coil spring 20, which is attached at one end to the rear of the closure plate 21, near the center thereof and through channel 12 of the core B, with its other end to a tab of the metal plate 13, forms an elastic band, which the plate 21 rotates a little clockwise as soon as the pawl 22 of the locking plate 21 is released by pressing down the handle 25. . As already mentioned, the lower part of the handle 25 engages with its claws in the openings 23 of the closure plate 21 and furthermore has a slot in its upper part in which an upwardly bent tab of the plate 13 firmly connected to the body B engages (Fig. 3 and 7), so that the handle can move in a vertical direction on the core, but cannot be twisted against it. As can also be seen from FIG. 7, the front edge of the body B is slightly turned out at α in order to be able to insert a spring ring 8, which closes the joint between the cover and the housing core and at the same time easily holds the core B in the housing; it is held in place by small clamps 26. The protruding edge 27 of the housing 1 (FIGS. 3 to 6) is provided with cutouts for the pawl 22 at regular intervals corresponding to the number of images to be produced. The bridges in between are numbered consecutively. The front cover A is cut out at its upper end at 22 (FIG. 1) and has an opening 6 corresponding to the objective. as follows: The handle 25 is pressed down until the pawl 22 has become free. The spring 20, which is more strongly tensioned by the pressing down of the closure plate 21, then throws the plate 21 around in the direction of the arrow (FIG. 4), the cutout 24 passing the lens 15 so that a snapshot is effected. After releasing the handle 25, the spring 2 brings the plate 21 into the position shown in FIG. 5, the pawl 22 snapping into the next section of the edge 27. Now the handle 25 and thus also the core B is held for the new recording and by turning the housing 1 counter-clockwise the next field of the film behind the; Objectively guided, the locking plate 21 being returned to the position according to FIG. 3 by means of the pawl 22 under tension of the spring 20. j When lever 25 is actuated again, the above-described operation is repeated. . ■! A pen is used for time recording; the opening d of the front cover A is inserted, which enters the opening 23 of the closure plate 21 'and the small opening e of the plate 13 and prevents a momentary movement of the closure plate 21 by the fact that. a protruding corner of the opening 23 abuts the pin. If the handle 25 is depressed, the opening 24 occurs in front of the lens 15, as shown in FIG Objective opening is covered again. Patent claims:

1. Secret camera in the form of a pocket watch or the like, in which a housing (1) is rotatably arranged around a core (B), which carries the objective and the objective closure, by the partial rotation of which the closure is in readiness -

■ is brought into position and possibly at the same time the film is twisted by so much, that a new part of it comes into the picture field.

2. An embodiment of the camera identified under 1., in which the objective shutter consists of a plate (21) which oscillates around a linearly displaceable pivot point (c) and is influenced by a spring (20), which in the rest position has a pawl (22) engages in one of the cut-outs in the housing edge (27) so that it is carried along with a partial rotation of the housing (1) without exposing the objective opening (14), while by moving its pivot point (c) by means of a handle (25) for the Effect of pressing down the handle (25)

tensioned spring (20) is released so that its opening (24) sweeps past the objective opening (14).
An embodiment of the camera identified under 2., in which by inserting a pin into the openings (d, 23 and e) the movement of the shutter plate (2i) after the release is limited so that the exposure opening (24) is so long in front of the objective opening (14) stops as the handle (25) is held down.

1 sheet of drawings.

Berlin, printed in the Reichsdruckerei.