Abstract: Motion-picture camera with a taking optics for projecting frames onto a motion-picture film, moved by means of a film transport mechanism along a film path. In addition, in the vicinity of the film path a frame-projection device (16) is located to project an additional frame (32) onto motion-picture film (3) and/or to superimpose a partial frame (36, 37) on frame (31) exposed or to be exposed by taking optics (15).

Abstract: A film transport device for a film with two uniformly distributed rows of holes. Transport is accomplished with a film transport sprocket with a series of teeth disposed in spaced array along a cylindrical tooth circle, which teeth engage the holes in the film and whose tooth circle is driven by a drive motor. A pressure skid brings the holes in the film into engagement with the teeth of the film transport sprocket. Each sprocket tooth has a root portion that merges with the cylindrical tooth circle structure. A base portion adjacent the root portion directly abuts the root portion and has a film support surface at a height relative to the surface of that tooth circle structure that corresponds to the thickness of the film.

Abstract: Film transport for a motion picture camera with a claw 2, of which at least one claw tip 21, 22 advances the film to be transported, provided with perforations on one edge 10, stepwise past a gate, and a transport drive which comprises a working arm 5 connected with the middle segment 20 of claw 2 with articulation, said arm being connected by a claw crank pivot 12 with a crank arm 4 and moving claw 2 in such fashion that claw tips 21, 22 traverse an elongated closed curve which at one end enters the film plane and at the other end leaves it again, with crank arm 4 being coupled by a control arm 6 with a fixed bearing 14 of an oscillation crank 7, said crank being connected end segment 23 of claw 2 with articulation.

Abstract: Film transport device for intermittent transport of a film (6), having at least one uniformly divided row of holes and being guided in a film channel, in which a film gate for projection of a frame located in front of the film gate is located, with transport being performed by a film transport sprocket whose teeth (10) to (14) and (20) to (24) engage film holes (71) to (75) and (81) to (85). The movement of the film is adjusted before the projection of a frame in such fashion that the leading or trailing flank of a tooth (10), (21) of the film transport sprocket, looking in the direction of rotation of the film transport sprocket, abuts the leading or trailing edge of at least one hole (71), (85) of the film perforation at the moment of projection of a frame.

Abstract: Apparatus for intermittent or continuous transport of a film using a film transport device comprising a drive motor whose shaft firstly is connected with a sprocket engaging at least one row of holes in the film and secondly with a position sensor which delivers position signals corresponding to the angular position of said motor shaft, to a control and regulating device whose output controls the drive motor through a DC amplifier, so that during intermittent transport of the film, each film pitch is subdivided into at least one acceleration phase, one deceleration phase, and one position-regulating phase, said phases preferably having variable or programmable lengths, with the set values for the acceleration and deceleration of the film transport device having their rises limited.

Abstract: Film transport device in a film projector with winding plates located on both sides of a film gate and drivable by one winding motor, with supply and takeup devices respectively located between the winding plates and the film gate to create film loops on both sides of the film gate, a film transport device between the supply and takeup devices, and a film channel to guide the film placed in the film projector. After film (1) is placed in the open film channel, film transport device (2) and one of the two supply and takeup devices (3, 4) is brought into engagement with film (1) and film transport device (2) is operated at an rpm greater than that of one of the supply or takeup devices (3 or 4) until a first film loop of a presettable length is formed between film transport device (2) and one of the supply and/or takeup devices (3 or 4).

Abstract: Control and regulating device for film transport in a film projector, with winding plates (62, 72) located on both sides of a film gate (8) and drivable by a single motor (61, 71), and with supply and takeup devices (3, 4) likewise disposed between the winding plates (62, 72) and film gate (8), the devices being drivable by at least one drive motor (51) to produce film loops on both side of the film gate (8) and with a transport device (2) between the supply and takeup devices (3 and 4). The drive motors (21; 51; 61, 71) for the winding plates (62 and 72), supply and takeup devices (3 and 4), and film transport device (2) are connected with sensors (25; 55; 65, 75) to detect the rpm and/or rotational direction, so that when a presettable rpm is exceeded or when one of the drive motors (21; 51; 61, 71) rotates in a rotational direction counter to the rotational direction predetermined by a higher-order operating control, all drive motors (21; 51; 61, 71) are braked simultaneously.

Abstract: An interchangeable lens suitable for use in conjunction with a motion picture camera features a lens mount 13 that is removably attached to such motion picture camera, a lens casing 11 commecting to lens mount 13, and an external casing 10 that both houses the adjusting elements of such interchangeable lens and is connected through sound-absorbing rings 16, 17, 18 to lens casing 11. An object-side buffer ring 16 and a camera-side buffer ring 17 both center and radially support, in its end zones, external casing 10 upon lens casing 11.

Abstract: A film transporting mechanism includes two film transporting claws disposed on opposite sides of a center plane. The claws come into engagement with perforations in two rows of perforations in a film to be transported stepwise past a picture window. Each claw is driven by its own transporting drive. The tips of the claws traverse an elongate, closed curve which at one end enters into the film's traveling plane and at another end leaves the plane. Each of the transporting drives has at least one drive shaft that is mounted in axially spaced bearings mounted in openings in laterally spaced bearing plates. The bearings for the drive shaft, or drive shafts, are disposed on opposite sides of the center plane, in the opening of the bearing plates.

Abstract: A tipping device for a movie camera or for the cradle (3) connected thereto is swivel-mounted in rollers (8) by means of skids (6). The cradle (3) is connected to a link chain (15) which is in mesh with chain wheels (21). By means of such a traction means the rotary motions applied to a crank can be transmitted with precision to the cradle (3), free from play, in order to swivel the same.

Abstract: Interchangeable lens for a movie camera having a bayonet ring or a threaded ring for releasable attachment thereto, the outside mount (41) of the interchangeable lens (4) itself being designed as a blimp.

Abstract: In apparatus for tensioning film strip unwinding from one roller and running onto another roller in a cassette or camera, a D.C. motor is provided of which the armature shaft and/or the stator are freely rotatably mounted. The winding cores of the rollers are placed on the armature shaft and stator.

Abstract: This invention relates to a motion picture camera in which an interchangeable lens is connected by a lens adapter to the camera mechanism including the film guide with film gate and the camera mechanism is suspended from the camera housing and/or is designed so as to prevent a transmission of structure-borne noise. To ensure that the sound that can be transmitted to the outside by the lens will be substantially attenuated, the lens adapter comprises a lens mount member and a flange, which is connected to the camera mechanism and is connected to the lens mount member by means which are adapted to absorb structure-borne noise.

Abstract: In the film transport mechanism, the film strip is driven in the perforation plane from a drive shaft by means of at least one transport pin. The drive shaft has in the perforation plane a constant-diameter cam, to which the transport pin is coupled by a shuttle frame. To improve such film transport mechanism so as to reduce the noise generated by it in operation, the shuttle frame is additionally coupled to a rocking crank and slider linkage or to a slider, which is part of a slider crank mechanism, which has a drive shaft that is identical to the shaft for driving the transport shuttle.