DE1422687C - Projection device - Google Patents

Description

The invention relates to a film projection device, in which several side by side in front of the projector located magazines, each containing a film located on a pay-off or automatic reel tlerart are arranged to be displaceable or rotatable in parallel, that the containing the selected film Magazine can be moved into the projection plane.

In the previous film projection devices each one / a film reel, z. B. a whole evening Films, in the appropriate place in ilen projection apparatus used, then the Filmanfaiii: Pulled by hand through the film track over various rollers, comes on the other side and is attached to the empty take-up spool. Then when the movie is through You can either rewind it directly and then dismantle the two coils and replace them with others Replaces reels, namely a full supply reel and an empty take-up reel, which is a relatively high one Takes time, or you have to take both spools off the projector right after the film has run through is, dismantle and mount the other spools with the new film strip on the projector and rewind the first film strip later.

lis are already automatic film insertion requirements which make it easier to insert the film through the drive mechanism, but where the film is still inserted by hand at the beginning of the automatic inserting of the film and then by hand on an empty take-up spool must be attached. The dismantling of the unwinding and take-up spools can also be done not be spared. jr,

Known Ut a device for rewinding films in an apparatus for optional Vorfiih-1 Several films carried by pairs of coils are, which in turn are attached to a movable carrier system that makes the film change significantly. The arrangement is designed in such a way that it is practically impossible to replace entire film magazines is niOL'lich.

Due to the structure and construction of the well-known I ¹ uniUhIiUIg, the film must run between 1 ;, d in both panels in order to form the loops. In order to come into connection with a wide variety of / all-in-one drums / 11, the plates must be connected together in such a way that their movement takes place at the same time. The transmission of the motion pre- 0 »gauge is carried out by a motor using special parts and ropes. Due to this construction, it is so difficult to use a different magazine and to replace the magazine that it is practically out of the question during operation / en.

In a well-known sound film projection device, every single one is housed in magazines, and with the Hill ·: uinri dialing device, the choice is made from a Vaitestellimg in the l'iuj .. kiiwiiv.li Him) 'belöiderl, the Piojcklion and then the Riii.kspiilung ties Films is effected, and finally the magazine is put on hold /tiiiickf.'cl'iiliil. The disadvantage of this well-known Fin fij iicliliing is that "you find all the Finzclmagazine in you!" Injection, .U ¹ HiIIi); must be brought. The liiliit da / u that the film in question must be rewound in the projection position itself before a new film can be selected. Another disadvantage of the known device is that there each individual magazine apart from the delivery reel and the take-up reel, which are always required, also have a drive element, a transformer with freewheeling effect, further drive belts, gears, a mechanism provided with a gripper for advancing the film as well as a pressure plate. In the known device, all of these listed parts are repeated for each film - an expense which undoubtedly must be described as very disadvantageous. Each individual magazine needs a specially provided device, which includes the holder, the axis, the motor, the worm, the toothed sector, etc., in order to bring the individual magazine from its waiting position to the projection position. The mere fact that an extra motor has to be provided for each film results in costs that make this device practically undisputed. After the end of the film, as I said, the individual magazine must remain in its position on the projector until rewinding is completely finished; only then can the magazine be returned to its starting position. The entire time from the end of the film showing until then, the projector is busy and the time cannot be used to show another film.

In a further proposed film projection device a film magazine with side by side spools is also provided, which dabej can be moved lengthways on a rod to put the desired film in the operating position to bring into the projection plane. With this known device, too, one is the whole construction after being limited to a single magazine with a relatively small number of films. Warehousing further magazines in the box and changing the magazines is not possible. Is exactly the same it is quite difficult to swap out a single film and replace it with another. Audi is in this known device, the effort is relatively large, since for each coil, for example special gear wheels must be provided as well as an electromagnet for each magazine chamber or 'a relay and a switch must be available.

The invention has for its object to provide a film projection apparatus in which a large Number of films can be saved ready for selection in such a way that the desired film is in the shortest possible time Time selected, brought in front of the projection device and introduced into the sound reproduction device and can be connected to the film advance device without threading the film by hand must become. It is also an object of the invention to make the arrangement so that the Movie frames containing movies do not advance in a straightforward manner need to be equipped and can have a very simple design that the on the films that are rewound very easily can be exchanged and that the rewinding of the film being played does not immediately follow The film must be run through, but can be made at a later date.

The object is achieved in that several individual magazines lying next to each other Collective magazines as a unified whole in

two Koo'rSinaten devices are displaceable and at the same time part of at least one of the coordinate devices as a unified whole. ··; displaceable collecting magazine insert are that each running from the payoff to the take-up bobbins Film strips of all individual magazines are waiting as well as during the shifting process extend between the coils in a straight line and free from any contact with other parts, that a single film advance device serving for the film advance of the films of all magazines is connected to the projector and that a strip of film running from the pay-off to the take-up spool of the selected film and in the film channel of the projection device as well as in the with this connected film feed device introducing film take-up is provided.

The arrangement can advantageously be so divided that the film recorder as in a plane running parallel to the projector axis pivotable swivel arm is designed, at the free end of which a film pickup roller is attached and the other end of which is seated on an axis capable of both rotating and translational movements can perform in the axial direction, and that the movement of the axis according to a predetermined Program is controllable via per se known control means, for example scenes.

The roller tensioning drums usually required for film advance and for loop formation or guide rollers can pivot on a cooperating with the film receiver be arranged lever-like carrier.

A second film recorder which introduces the film into the sound reproduction device can also be provided. . . _: .

Advantageously, the film receiver can be controlled in such a way that it initially, from the projector again and the film is only then rewound without going through walking through the projector.

A film projection device constructed according to the invention can be used in this way, for example, in movie theaters ensure that every film strip is on the 'supply reel at the start of operation, each beginning of the film, however, is led in a short distance to the associated take-up reel and fastened there is. In this form, the system is one and the same at the beginning of each of the three day demonstrations, for example Films ready for use. At the beginning of the film screening, the film recorder, be it by manual, be it through automatic control, to the film catch running between the supply and take-up reels moved there, the first film strip or the first act is picked out or recorded, the affected film is drawn up to the projector and inserted into the film channel of the projector. Then you let the film through the projector run through it, then the film is rewound, and at the end the film recorder gives the initial go part of the film returns to its original position, takes on the next film strip, and the The process is repeated. However, the process can also be carried out in such a way that, in contrast to what has been described above, the film recorder has already removed the passed film from the Takes out and returns the projector and the film is then rewound without going through the Running back through the projector. The film projection device according to the invention has the advantage that during the entire duration of the affected Films in the cinema concerned, the beginning of each film strip only once in the relevant associated empty or winding cap has to be inserted. All other insertion, push-through, Insertion and fastening work are no longer necessary.

The arrangement is inventive for normal operation in movie theaters with two film projectors made so that the first, third, fifth, etc. film reel on the film magazine of one projector and on the film magazine of the other film projector the second, fourth, sixth, etc. film reel a full-length film. This operation then advantageously has the effect that while, for example, the second film reel is being presented, the first projection device the first film reel rewound. The whole thing is automatic, and it is entirely possible using one's thoughts the invention to do without a demonstrator. The same procedure can be used with multiple groups of two projector magazine entries like this be further trained that special purposes can be achieved, e.g. B. plastic, three-dimensional Depiction. .

According to the invention, completely new areas of application for films can be opened up, for example »Cinema boxes«, d. H. self-cashing slot machines for movies. In such an application becomes just a projector and one or more collective storage devices used, for example, in a large box or closet auge- 'and relative to each other parallel displaceable are. The extent of this parallel shift is displayed in a manner known per se. d. In other words, the interested party chooses a very specific film on a kind of scale. After inserting a coin by the prospective customer, motor-driven, the film recorder promotes the selected one in question Film in its place in the projector and the film expires. The Backwashing, possibly while other selected films are already running.

Exemplary embodiments of the invention are described below with reference to the drawings. It shows ':' .. '■'

1 shows one of the circularly designed film collecting magazines, ,

Fig. "2 one of the linear Filni Samniel magazines,

3 shows a film box seen from the front, 4 shows the film box according to FIG. 3 in a side section,

Fig. 5 shows the device with the film pick-up device in demonstration position,

6 shows a partial section of the device according to FIG F i g. 5 seen on an enlarged scale from the side. "'.

F'ig! 7 the device according to FIG. 6 seen from above,

Fig. 8 and 9 details for the drive of the Movement of the collecting magazines,

Fi g. H) one of a large number of collectible magazines existing collective magazine insert,

FIGS. II to 14 show a schematic representation of an exemplary embodiment of one taking place through scenes Steering,

15 shows another embodiment. one

by cam locking and cam followers Control in the cut,

15a shows a side view according to FIG. 15,

FIG. 16 shows a representation according to FIG. 15 in a another movement phase in section, FIG. 16a a side view according to FIG. 16.

The F i g. 1 schematically shows two circular collecting magazines, namely the upper collecting magazine half 11, on which the delivery spools 12 are accommodated, and the lower collecting magazines 13, on which the winding spools 14 for winding the film are accommodated. The projector 16 with the lens 17 is accommodated between the two collecting magazine halves 11 and 13. By rotating the collecting magazine in the direction of arrow 18, the film strip 15 of the currently selected film is brought into its position in front of the lens 17 and can be pulled into its operating position by means of a film recorder to be described in more detail below.

How the movement of the magazine can take place, for example, namely how the rotation takes place, etc., can be seen from the two drawings, FIGS. 8 and 9, which show a side section and a top view within a "cinema box". Since this is a special example, new reference numbers have also been chosen for parts that have already been described. The new cinema box has two circular collecting magazines 311 and 312, which can move upwards or downwards, as indicated by arrow 501, Fig. 31, being driven by an electric motor 313, which sits on the projection sound 314 , and on the cabinet cinema box -Housing is attached to be driven. The motor 313 drives the three chain wheels 315.316 and 317 with the aid of a chain 333 , which is only indicated by way of illustration. Each sprocket is attached to a threaded column 318,319,320 . Each threaded column goes through one of three threaded nuts 321, 322, 323, which are attached to the collecting magazine carrier 324 , and through one of three guides, e.g. B. 325, which are also attached to the magazine carrier 324 , as shown in FIG. By rotating the motor in one direction or the other, all three sets of sprocket and threaded column rotate in the same direction as the motor, the thread causing the magazine carrier to move up or down, as indicated by arrow 501, FIG. 8 , emotional.

It should be pointed out that the projector does not prevent the magazine from moving when the film receiver is in its rest position, regardless of whether it is vertical, as indicated by arrow 501, FIG. 8 (from top to bottom), or a rotary movement, as indicated by arrow 502, FIG. 9 indicated (from left to right) is. When the desired magazine arrives at the correct height in front of the projector, the motor 313 is switched off by automatic switching devices and an electromagnetic locking device 328 is switched on to hold the magazine carrier in this position as long as the motor is switched off. At this point in time the electric motor 329 and an electromagnetic printing device 330 are switched on, the drive wheel 331 pressing against the outer edge 332 of the magazine and rotating the magazine in question in the direction of arrow 502, FIG. 9, by friction. When the desired film arrives in the projection plane in front of the projector, the motor 329 is again switched off by automatic switching devices and an electromagnetic locking device 330 is switched on in order to hold the magazine in this position until the end of the film game.

In a manner similar to the example in FIGS. 8 and 9 or with the aid of other different mechanisms that are not fully shown, the collecting magazines can be arranged as shown in the following according to an exemplary embodiment of the inventive concept, as shown schematically in FIG. 10 is shown that they form a chain-like coherent whole, which consists of a very large number of collecting magazines. The collecting magazines are arranged on carriers 511 which are held together by means of joints 512 in such a way that the carriers or joints are mounted on one or more sprocket-like wheels 513 . If the wheel 513 is rotated in the direction of the arrow 503 , the collecting magazines 514, 516, 517, 518 etc. are moved in the direction of the arrows 504, 505 and 506, see above. that the collecting magazine 514, which in Fig. 10 is just in front of the reproducing device 515 , by some other collecting magazine, z. B. 516, can be replaced.

By a suitable means, which is also not shown here, the film sets that are located on the collecting magazine 514 , which is located directly in front of the playback device 515 , move in the direction of arrow 507 , so that the selected film is exactly in front of the Playback device can be promoted to the playback level.

By combining the movements in more than one direction, ie in the direction of arrows 501 and 502 in the example in FIG. 8 and 9 or in the direction of arrows 504 and 507 according to the embodiment shown in FIG. 10, the number of films available for selection can be selected as large as desired, since the arrangement of the films is not limited to a single collecting magazine.

The two collecting magazine halves 21 and 23 in FIG. 2 extend in a straight line. The upper half 21 contains the pay-off spools 22 from which the films are unwound in order to be wound onto the take-up spools 24. The projector 26 with the lens 27 is arranged between the two collecting magazine halves 21 and 23.

Through the drive, the collecting magazine halves can be pushed back and forth in a straight line, as indicated by the arrow 28 , so that the desired film comes to lie in front of the lens 27 and the film strip 25 is brought back into its operating position by means of the film recorder to be described below can be.

The "cinema box" according to FIGS. 3 and 4 has a main cabinet 30 βμί at the top, on the somewhat beveled part 31 of which the pushbuttons 32 are attached. Above that, at a convenient viewing height, is the ground glass 33, which is shielded from interfering side light by the re-entrant surfaces 34, 35, 36 and 37. _ ·

In the cabinet 30 the two circular collecting magazine halves 41 and 43 are accommodated, which carry the pay-off and take-up reels 42 and 44. The projector 46 with the objective 47 is arranged between the two. By pressing a

the pushbuttons 32 put the two collecting magazine halves 41 and 43 in a rotary movement until the by means of the relevant pushbutton selected film comes in front of the lens. Then the film strip 45 of the can again by means of a film recorder to be described further below Film can be recorded and brought into its operating location. The ones coming out of the projector 46 Rays arrive after passing through the film as shown with dashed lines, on the mirror 48, are reflected there, arrive, as also shown by dashed lines, onto the mirror 49, where they are reflected again, to fall on screen 33. For focusing, the two mirrors 48 and 49 can be parallel be moved, in the direction of the projector 46 or the ground glass 33 or away path.

Figs. 5 to 7 show an embodiment a projector with a film recorder, namely F i g. 5 the whole more schematically inclusive the film winding spool 51 and the film winding spool 52 and the sound reproduction device 54, while Fig. 6th and FIG. 7 relates to the illustration of the parts of the invention and those essentially connected therewith Restrict parts in side and top view.

In the housing 55, as in FIG. 7, which can be pivoted out by the joint 58 about the pivot point 57 Lens 56 attached. The objective 56 has a knurled ring which is used for adjustment 59 on. On the lens 56 there is a support 60 which, by means of a hinge 61, supports the carrier 62 holds. The carrier 62 is by means of a padded lever 63, the movement of which is via the lever axis 64 derives from the outside to move up and down, with its in its lowest position Padding 65 rests on a bracket 66 from lens 56. The carrier carries two guide rollers 67 that in operation with the stationary, but rotatable toothed drum 68 cooperate in such a way that the Filmstrip 69 as shown can pass therethrough.

For reasons of illustration, FIG. 6 the lens 56 in the folded-in state, in FIG. 7 but in an intermediate layer in the course of unfolding, shown. The film runs through during operation the film channel (or presentation track) 70 and is held by means of a film pressure plate 71. The one from the The film coming from the top unwinding spool 51 runs past the guide roller 72.

A swivel arm acting as a film pick-up 73 carries a film pick-up roller 74. It is on the axis

75 attached, which derives its movement from the outside and a pushing movement in the direction of the arrow

76. As well as a pivoting movement around its own axis, as later on with the axis of the film take-up roller 74 being on the dot-dash line

77 moves.

The above-described device is above and below the objective 56 essentially formed the same, so that with respect to the formation below the lens, which is not shown in FIG is, to the above description of the parts above the lens as well as to the schematic Reference is made to the drawing of FIG.

The automatic loading of the film, which is described below; also happens above and below with equally trained l'ilmaufnolinn-rn 73 in the same manner, so that description with reference to the above parts will suffice. .

In the following, the individual phases of movement of the film receiver 73 are first of all clear shown and then explained in detail.

In each of the individual movement phases, the film pick-up roller 74 is indicated by dashed lines and with a number identifying the phase.

-Time 1 ■ -

The film strip 69 of the selected film is brought into the corresponding position in front of the projector. The film take-up roll 74 is in of exit point 1, as shown in FIG. 7. The Lens 56 is fully extended. The padded lever 63 is in its lowest position.

Point in time 2

The film take-up roller 74 is by pivoting the film take-up 73 about the entire axis 75 in the extreme position shown in solid lines 2 has been brought.

Time 3

The film take-up roller 74 is by sliding movement of the axis 75 in the direction of the arrow 76 in ' the in F i g. 7 dot-dashed position marked as 3 has been brought .jv

Time 4

The axis 75 has made a pivoting movement, while the film take-up roller 74 has the film strip 69 taken to the other end position 4 shown in dashed lines. The film strip 69 is now in the film channel 70 (or presentation track) has been inserted.

Point in time 5

The lens 56 is swiveled in and thereby places the film strip 69 in the film channel (or presentation track) 70 exactly. .

Time 6

The padded lever 63 is moved upwards, pushing the carrier 62 with the guide rollers 67 in engagement against the toothed drum 68 up to the illustrated end position 6 in FIG. 6.,

Time 7.

The film insert 73 rotates back a little into the in. F i g. 6, dashed position 7, to expose the film loop 78.

Time 8. . ;

The filmstrip 69 passes through. The film is loosened in exactly the reverse order.

The individual movement processes are in an " known way, as described below, via gears and scenes or via Noekeii-

discs and cam followers controlled. r

As shown schematically in Fig. 5, a further film receiver 53 can be provided, which the Move the film into the sound player 54 can. The film receiver 53 is controlled

similar to that of the filin holder 73 in detail Time phases, so reference is made to the description of the film receptor 73 for details can be.

109 682 24

In the following, there will now be described a stage made in accordance with a first embodiment and shown in FIGS. 11 to 14 illustrated automatic control described. Again, since it is a special exemplary embodiment, there are also new parts for parts that have already been described. Reference numerals have been chosen. The figures show a section of the projector at the same height of a plane where a gate plate 334 is located. The plate 334 has a slot of a certain shape 51, 52, S3, 54, as in FIG. 11 shown. A device 335, hereinafter referred to as a "hook", can slide on this plate, but the hook 335 is fixed in place on the guide 336 through which it slides. Also one end 5 of the hook is through a bolt that goes through the slot

51, 52, 53, 54 is forced to follow this slot. The other end T of the hook is bent by 90 °, as shown in FIG. 11. The film 337 runs perpendicular to the plane of the drawing or to the plane of the plate 334 in front of the presentation path 338. In the rest position, the hook takes the position shown in FIG. 11 position shown, the end 5 rests in the position 51 and the end T in the position Π. In this position T1 the end of the hook 1 is not higher than the projector side 339, that is, if a film is moved to the right or left in front of the projector, it is not hindered by the hook. If by manual operation or by automatic drive of some kind the end 5 of the hook in the place

52, as shown in Fig. 12, comes, following the curve 51 to 52, then the other end T describes the curve 7'1 to Tl , in that the hook follows the slot and remains in the guide 336. As a result, the end T is now on the other side of the film 337, that is to say on the side opposite the actuation side of the hook, angc-Jcommcn, the hook not having touched the film at all.

By moving the end 5 further to the point 53, the end T accordingly moves to Γ3, as shown in FIG. The film was now in the trajectory (in the path) of end T. The path of end T crossed the film, which was perpendicular to the path. As a result, the end T is only drawn towards the film from T 2 and press against it. If the balance of forces permits, the film gives way and the end T of the hook pushes or pulls the film in the direction from Tl to T3 until the film comes to rest in position T3 in the film presentation path.

If at this point or at this point in time another part of the projector, be it the lens mechanism, be it something else, presses on the film and holds it in the film projection path, then the hook can leave the position V3 without the film Film projection track is left. And that's exactly what happens. The lens housing closes over the film and keeps it encapsulated, so to speak in the film projection path, and then the end S of the hook is moved to position 54, with end T coming to position T4, as shown in FIG.

. After this point in time, the film can be in the projection lane slide for the purpose of projection. This explains in principle how film can be taken using a backdrop control. This principle can be applied to small projection devices,

z. B. portable devices, the movement of the end 5 'by manual operation is achieved.

Then, according to a second exemplary embodiment, using cam disks and Follower control shown in Figs. 15 and 16 will be described. Each of the characters Fig. 13 is a side view and a section showing the main parts of the film receiver and its drive

ίο represent. The numbering of the parts in Fig. 15 and 16 is independent of any other numbering in the other drawings.

Figure 15 shows the side plate 411 of the projector partly in cut. A bearing 412 is fixedly mounted through this side plate through which a shaft 413 runs, which is installed so that they perform a rotary and an axial movement can. At one end of the shaft 413, a lever 414 serving as a film receiver is fixed to the shaft

so attached, which follows the rotating and / or axial movement of the shaft. At the end of the lever 414 a pin 415 is attached, on which a roller 416, which acts as a pick-up crown and can rotate freely, is mounted. A thrust washer 417 is attached to the other end of the shaft 413. A second lever 418 is also seated on the shaft 413 at a point between the bearing 412 and the thrust washer 417, as can be seen from FIG. At another point in the projector side plate 411, a second bearing 419 is fixedly attached, through which a camshaft 420, as can be seen from FIG. 15, runs. This shaft is mounted in such a way that it can only perform a rotating movement. A cam disk 421 acting as a cam disk, a chain wheel 422 and a drum cam 423 acting as a lateral cam surface are mounted on this shaft. A shoulder bolt 424 is fixedly attached to the chain wheel 422, which can move with the chain wheel and which takes a lever 425 with it. The lever 425 is hinged at one end to the chain wheel 422 via the shoulder pin 424, while its other end is hinged to the second lever 418 by another shoulder pin 426. This interaction gives the lever 425 the function of a connecting rod; which has the task of converting a circular rotational movement of the sprocket 422 into a reciprocating movement of the second lever 418 , the reciprocating movement not being straight, such as e.g. B. that of the KoI-ben -in the car engine, but is again circular, with the central axis of the shaft 413 as the center of the circular path of reciprocation. The lever 425 , which acts as a connecting rod, is designed and mounted in such a way that it does not hit other parts during its activity. Furthermore, the two shoulder bolts 424 and 426 are made so long that they do not clamp the lever 425 too tight or too tight in their position in FIG can be moved freely and without unnecessary friction. .

Furthermore, a lever 427 is articulated at one end to a shaft 428 , which in turn is fixedly attached to the projector housing by means of rods. The lever 427 has at its other end, as shown in Fig. 15, a acting as a plunger. Ball pressure device 429, as well as a similar, but adjustable, cam follower roughly in the middle

11 12

effective Kugeid rear device 430 on. When the film is pulled, the film spring 431 begins to be inserted, one end of which is automatically engaged with the projector side plate 411 and at its other end by a chain 438, the sprocket 422 is attached to the pro-channel of the projector Lever 427, as shown in FIG. 15. Direction of arrow 439 drives. Due to this torsion caused by this tension spring 431, the lever 5 is moving and the shoulder bolt 424 427 is constantly moving against the side cam in the same direction of arrow 439, the effective cylindrical curve 423 at point F and movement through the connecting rod effective against the thrust washer 417 at point "g" . Lever 425 is transferred to shoulder pin 426. A compression spring 432 is mounted between the fixed bearing, which moves in the direction of arrow 440, and lever 418, which moves lever io, which in turn drives movement through shaft 418, respectively. the whole shaft 413 and all attached to it 413 is transmitted to the lever 414, which will then move in the brought parts in the direction against the lever 427 in the direction of the arrow 441. To vci or against the ball pressure device 429 it is noticeable that it presses a certain phase shift point "g". or the angle λ between the two levers 418

The side view (Fig. 15a) shows these parts, 15 and 414 there, which always remains constant, thereby

all three parts 414, 418 and 425 with full that both levers are firmly attached to the shaft 413

Lines are drawn as if they were e.g. B. made of plexiglass.

The movement of the various parts of the operation, as described below, is followed step by step in FIG. 16. When he can follow more clearly and easily. Further, in the 20 point A from the point Al to point A 7 travels, side view of still partially drawn drain as shown in Fig. 16, the point moves B of the coil 433 can be seen on which the film 434 aufgewik- point Bl to point B 7, point C from point Cl is kelt. A part of the film is firmly attached to the take-up spool, to point C 7, "point D from point D 1 to point that cannot be seen in FIG. 15, so Dl and point E from point El to point ET Film constantly between the pay-out and take-up reel The drum cam 423 also rotates so that the bobbin runs new contact point F7 is shown in Fig. 15, and runs almost vertically in its place, since the two points F1 go from top to bottom. The plane in which the two and F7 are not at the same height on the drum reels as well as the film lie, lies parallel to the 3 ° curve, the ball pressure device will be side view and coincides with the plane of the and accordingly the entire lever 427 in rich film channel 435 of the projector, which move only partially in response to arrow 442 is utet. There is also a drum gear. It should be noted that although it appears in the side 436 as well as a guide roller 437 in the same above view as if the lever 414 and the mentioned plane, respectively. The two reels with the film 35 roll 416 overlaps the film 434, it results at this position, ie in the same plane of the but from the top view, that the roller is only next to the film channel of the projector by the movement or the film 434Af, parallel to the film or film Rotation of the collecting magazines has come and the projection level is at a certain distance in front of it, in this position for the entire playing time of the film is firmly locked. 40 After further rotation of the sprocket 422 rotates

The center line or the center of the axis is also the drum cam 423, so that a new one

the roller 416 is marked with "C", that of the shoulder bolt point F with the ball pressure device 430 in loading

424 with "A *" and shoulder bolt 426 with "ß" comes into contact. Since now all points F2 to F7 are higher

been designated. The outermost point of the roller will lie on the drum curve as F1, the ball

416, which is closest to side plate 411 or printing device 430 by the. Drum cam 423

Film projection track 435 is located, is pressed and shot in the direction of arrow 442 with "D"

The outermost point of the lever 414 is marked with "E", and the entire lever becomes accordingly

been net. '-', "■, 427 pivot as a whole about the shaft 428, with

It should also be noted that Fig. 15 the whole of the tension spring 431 stretches. Since the ball parts of the film insert and its drive in the printing device 429 from the pressure disc 417 are in the rest position (or waiting position), this pressure disc moves to level G 3, and roller 416 accordingly moves outside the level of the film presentation path moves the whole shaft 413 lies. Point X is also to be noted. including all parts firmly attached to it under the

When the roller 416 moves in the film projection path, pressure of the compression spring 432 in the direction of the arrow, as shown in FIG. 16 can be seen, their 55 444, that is, the. The whole leads an axial sliding circular path; the one in FIG. 15 with the movement through. If the point A is designated in its intermediate C, X , the film 434 at the point X cross position to the point A 3 and point B to the point. The section of the film 434 at this β 3 moves, so the shaft point X is rotated around its axis in the plan view in the lower half 413 , that is, it has a view of Fig. 5 at the rectangle 434 X indicated. The 60 rende or rotary movement carried out · The ball pressure device 430 is at rest- a combination of the two movements is achieved a position in contact with the drum curve 423 in the complex three-dimensional movement of the film point F ₁ , whereby the pressure disk 417 is forced to insert, and it turns out that the gene is to rest _{in position G 1.} Point C to point C 3, point D of roller 416

After the collecting magazines are in position 65 to position D 3 and point £ of lever 414 to

^{1 are} locked, in which the desired film 434 or position £ 3 comes, with the roll 416 closer to

the film moves the two reels in front of the projector film plane, but it is now on the

The side of the film 434 facing away from the film channel 435 moved into the same plane with the film channel.

13 14

At the point Γ 4, which runs at the end of a rising roller 437, because it is in its path be-Kurvc, the highest point is on the drum, and because it reaches 423 stationary on the projector side curve. Up to this point the plate followed is attached. Furthermore, a pressure device ball pressure device 430 and the lever 427 device 449 are shown for the first time in the side view and the other ball pressure device 429 is dense! or the lever 414 is shown in the position Co in FIG. As a result, the print arrives, begins to move, disk 417 up to plane G4. As a result of the movement in the position shown in FIG. 16, the point A is further from A3 to A4 , the lever 414 is now withdrawn at its extreme left pivot end point B , because point B3 is the extreme io position, with the film 434 is withdrawn so far, the end point of the reciprocating movement of the lever 418 that it is now exactly in the film channel 435. To this was. Point B moves now in the Gegenrich- time or very shortly before the lens device, ie in the opposite direction of arrow 440, with its pressure plate by a special AnWelle 413 and all other parts attached to it swiveled on the film. This will rotate the opposite direction of arrow 441; however, film can be "encapsulated", so to speak, and between this movement no longer just a rotary movement of the pressure plate of the lens and between the, but it is now actually film channel 435, but it can swivel or pendulum movement in the channel. By the supply Filinvorführbahn slide vertically, the two movements of the shaft sammcnstellung Finally, the sprocket 422 rotates even 4! 3, that by the axial movement Faiga and "o continue until the point A at the point A 8 arrives, by the Pivoting movement A AlB 4 results on where the shoulder bolt 424 pushes a lever at one end of the lever 414 a complex three-dimensional electrical three-way switch, which then starts the movement, point C to point C4, point D motor, which takes the entire film pickup mechanism to point DA and Point E come to point EA . drives, switches off, with all parts of this media If the roll 416 has now reached point EA , then it remains in its end position until the end of the film exactly in the film or film projection track game in which the roll 416 something level and is at the same time behind the film 434 A \ as withdrawn, namely from the position C1 to that shown in FIG. 16, advanced. Position CS. In this position, if point F is located at point F5 , it acts as a clamping device and is at the same height as F4 , and the toothed drum pressed, with the film between, according to the lever 427 and the ball pressure of the toothed drum 68 and the guide roller device 429 remain in the same position; G 4 remains pinched in 67, with the film in front of G5-G6 = G7. As a result, the film channel 70 of the disk 417 located in the pressure lens 56 also remains in this position, the shaft 413 35 film channel pressure plate 71 being encapsulated as soon as there is still no axial movement, and consequently the lens through a cam (not shown) remains the roller 416 in the plane of the film control channel around the joint 58 in the projection plane. If the lever 414 and the roller 416 are pivoted, a film loop 78 hanging freely between the fixed further pivoting movement from point CS to clamped parts Γ6, then the roller 416 with the film 434 40 is detached.

at point X in contact. If the roller 416 is moved further in the opposite direction of the arrow 441 at the end of the three-dimensional movement, the pivoting movement of the lever 414 into the position D 8 pushes the film 434 in the same direction. Since the is the automatic loading of the filmstrip beFilm 434 is attached to the supply reel 433. ends.

which only under a relatively small frictional force 45 The control of the pivoting movement of the project

rotates, the film is through the film Aufnehiner or tor can in a similar manner by stencils or

the roller 416 is taken along or pulled, the by means of cam disks and cam followers in

Film is unwound from the supply reel 433 can be carried out in a known manner. One

with this spool extending in the direction of arrow 448 relating to this in the detailed exemplary illustration

turns. There is therefore no need to control these parts. The

If one imagines that below the same, the control of the carrier 62. relates to a similar mirror-image insertion - the one, whereby when selecting the desired film must work similarly and synchronously, then 55 the movement of the collecting magazines as a whole or the lower roller, which corresponds to roller 416, becomes the magazine carrier upwards or downwards through an exactly perpendicular under this roller 416 and the first drive motor is in the desired position accordingly, the film path is brought between the two rollers and the individual collecting magazines always run vertically, ie even after the magazine carrier or the collecting magazine is parallel to the film presentation track. 60 zinc as a whole in a locked play position. At the point in time when the roller 416 is at point X , moved by a second motor, the film entrainment begins, which is then achieved by the hook-like movement of the roller 416 by the desired collecting magazine will. In this case, within the locked magazine carrier on If the chain wheel 422 now continues to rotate so that the ball bearings can rotate (Fig. 8, 9), until the he-Ptinkt Λ arrives at the point A 6, the layer 65 sees the desired film appears at the game point; that is, up of the various parts as shown in FIG. 16, the desired film with its two film reels in from. The slight difference between FIG. 15 and the film projection plane comes to lie. Fi μ. 16 is that the film 434 is now about the filling lists of these electrical control units.

for the Samnielmugazine as well as for the individual Films are known in the art as they are in mechanical adding machines in a cash register commonly used locked.

The working cycle of the film recorder with its interacting parts is also controlled by a third motor controlled by electrical control devices, and the working cycle of the sound system, the light source of the Maltese cross and the cut-off device to end the presentation and all of the motion processes of the film recorder backwards to return the film.

All of these switching devices are also against each other locked, so that no circuit can be triggered outside of the animal provided time.

Claims (5)

Patent claims: 1. Film projection device in which a plurality of magazines containing a film containing borrowed film, located next to one another in front of the projector, are arranged such that the magazine containing the selected film can be moved into the projection plane , characterized in that collection magazines (311,312,516,517, 518. Fig. 8, K) consisting of several adjacent individual magazines (514) can be displaced as a unitary whole in two coordinate directions and at the same time are part of a collection magazine set which can be displaced as a unitary whole in at least one of the coordinate directions are that the each of the payoff (12. 22, 42. 5 !, 433. Fig. 1, 2, 4. 5, 15) to the package bobbins (14. 24, 44, 52, Fig. 1, 2 , 4, 5) running film strips (15, 25 ", 45, Fig. 1. 2, 4) of all individual magazines are in the waiting position and during the shifting process between the reels in a straight line and free from any contact with other parts that a single film feed device serving for the film advance of the films of all magazines with the projector (16. 26, 46, Fig. 1, 2, 4) connected M-and that a film strip of the selected film which is running from the pay-off to the take-up reel and introduces it into the film channel (70) of the projection device and into the film feed device connected to it (73, 413. Fig. 7, 15, 16) is provided. 2. Film projection device according to An, pnn.li 1. characterized in that the Filinaul'iiehmer (73, 413) as a swivel arm which can be swiveled in a plane parallel to the Projoktoraehsc serlaufend jst, at the free end of a film take-up roll (74, 416, Fig. 6, 7, 15, 16) and the other end of which sits on a shaft (75, 413, Fig. 6, 7, 15, 16) which can perform both a rotary movement and a sliding movement in the axial direction, and that the movement of the shaft can be controlled according to a predetermined program via control means known per se, for example scenes or cams. 3. Projection device after. Claim 1 or 2, characterized in that the rollers (68, 436, Fig. 6, 15, -16) or guide rollers (67, Fig. 6) usually required for film advance and for Schlaul'enbil-, formation on one pivotable lever-like supports (62, FIG. 6) cooperating with the film receiver (73) are arranged. 4. Film projection device according to one of the preceding claims, characterized. « that a second film pickup introducing the film into the sound reproduction device (54) (53) is provided (Fig. 5). 5. A method for showing a film with the aid of the projection device according to one of the preceding claims, characterized in that the film pick-up (73) is controllable in such a way that it first releases the continuous part from the projector and the film is only then rewound without having to go through the projector (16, 26, 314. Fig. 1. 2. 9). For this purpose 3 sheets of drawings 109 082 * 24