DE1718406U - DEVICE FOR SYNCHRONIZING A FILM PROJECTOR WITH A HANDHELD AUDIO DEVICE. - Google Patents

Description

57a. 66. 1718 406. right Ernst Hank, Nuremberg. | Device for synchro-

DA Γι 0 0 / ι 0 Γ μ nisicren of a film projector with emern! Ä U / t "JW * tape recorder. April 26, 55 ·. P SlSi. (T. 6;

8.KJtZ.

B. Wehr, H. Seiler ... - - _?

Graduated engineers inpiorn-ingenieur

Berlin-Grunewald D t * ^, "i: i _{f Ä} Nürnberg-2

Lynarstra ^ ei I UlBIH-.lnu.ic Frauentorgraben 45/47

Telephone: 9? 67 28 Telefnn NümVrn 7 "0 3 5 Teleoramni address: Sellwdirpateat Wohnuno: 7 43 06 Bank account: Bank account: Berlin Slad'kcn'.or. B ^ iriib == !; Wtecrjäsri Rayer. Credltbank NOrnbiru No. I 454 Zwelgslellfc Haiensee. Current account No. 97 256 VolksLank Iflrth'Bayern. Konin 4 624 PosUdiedikonlo: Berlin 1657 68 PoslsAedkonlo: NOrnberj No. 67081

P 8181/570 Ga

1/12/56

NUREMBERG, the

Firms Ernat Plenk, Nuremberg, Hohfederstr. 4o

"Device for synchronizing a film projector with one; Tonbendgerät "

It is a facility for synchronizing a Filmpro jek tcra kit einci tape recorder known that with is connected to both devices and if there is a discrepancy the Leufgesohwindigküiten from Bild- una Tonträger one Controls resistance in the projector circuit. The in dieuer Known devices have a very complicated structure in places and tend to be talked about undesirable noise build-up for the present purpose,

It has already been proposed at a similar facility to regulate the running speed of the projector with the help of a loop in the roof of the tape, which is brought out from the tape recorder. This Vorochlag refers you the Häheren dereuf, dasa when using a sound unit with independent Antriübamotor of the tape through a special projector voh sngetx-iebene role performed so I3T, di? Tn one at Geschwindigkeitauntor ^ chiede

572, 66, 17-18 406. Fa: Ernst PlAük. Nuremberg. ! Eiisrid> tuna rum syncronize "of a Filiuprojc & ors n: it one Tape recorder. 26, 4. 55 ·. P SlSi. vT. O; Line 1)

0 UD7 ince o.rmu 13 JV

swisohan this Holle and the Tonfcelle resulting tape tracks affect the resistance in the electric circuit of the Projektorsiotora.

The invention wants to stick while maintaining the advantageous Properties of the above-mentioned proposal are another Achieve design of this synchronization device, di3 should have advantages in terms of their operational characteristics before things are rushed.

Accordingly, the invention primarily proposes that au the one that works with the Tonbendschleif0 company Control device is located between the drive shaft (head) and the take-up roll of the tape recorder b ^ findat. The one from the projector away. about a flexible shaft gomäds said proposal powered roller assembly will be between your The regulating roller and the winding roller of the tape recorder are located. By the hechaeheltung of the synchronizer in relation on the tape head there is the advantage that the Power transmission from the projector to the existing roller assembly and inaccuracies transmitted on the tape calibrate no longer have a disturbing effect on the sound. It has namely shown that the Kreft # transmission e.g. through Vibrations of the flexible shaft or disturbances in the transmission organs between the projector rotor and the synchronizing device the tape small speed changes of a relative high frequency, whose auuregi-ung by the Tapered roller is not possible, this suosrnrrien niit dsr

57a, 66.171S 406. Ernst Plank,

Closer I establishment of the Syndiro- ο up? 4 _ü cg

kidneys "a * tilra projector with an O.HfU. i" M

Tape recorder. April 26, 1955, PSlSl. (T. 6;

Z.1) __

^In order suf the significantly slower changes in the speeds of the projector engine or de; Drive of the Tonbendgerätea is designed. These running inaccuracies, which can lead to non-significant but measurable sound distortions, no longer affect the sound boo, ie the tape had already p833 the sound head before the reel arrangement was reached.

In a preferred embodiment of the invention, care is taken to ensure that, with the smallest possible length of the tape loop looping around the control roller, the resistor arrangement Pua ^ sacheltat or at least one such word is increased, that is, the projector motor stops. This results in the advantage that one star of the entire facility, ie the film projector and the tape recorder, is possible without applying excessive tension to the tape and without letting the drive roller operated by the tape recorder drag on the tape and without excessive tension during the star to get a large loop of the tape.

An embodiment of the invention is shown in the drawing shown. It shows;

Fig. 1 film projector tape recorder and synchronizer in the side view,

Fig. 2 is a plan view of the tape recorder and synchronizer genicibs de.u arrows II-II in Fig. 1

From the film projector 1 the P.ollenan- i

- / *, 66, 1718 406. Ernst Plank, Nuremberg. J facility for oyntuto-

ί nize a Filmorojefeon .with em, =

Tape recorder. 26. 4. 5i. PSlSl. (T-6,

ί line 1) -.

tv '

Order 3 of the synchronizing device 4 a speed allocated, which corresponds to that of the image carrier 5. Dos from Drive 6 of the tape recorder 7 driven tape 8 rotates after passing the Tonkopfea 9 the control roller 1o and is then captured by the Bollenenordnung 3 and by the take-up reel 11 wound up. Parts 6 and 3 ensure that the tape is at the appropriate speeds without slipping conveyed.

Since the tape 8 is only detected by the roller arrangement 3 after it has passed the audio head 9, the small resolution inaccuracies given by these are no longer disruptive to the sound. The control roller 1o, which is arranged displaceably in the slot 12, interacts with a resistor arrangement which is connected to the circuit of the projector motor. If the regulating roller 1o is at the end 12 »of the slot guide 12, ie if the tape loop 8 has its shortest possible length, the resistance operated by the regulating roller has such a high value or is switched off, so that the projector motor stops» at the start of the entire device advantageously proceed as follows.

When the tape recorder is switched off, the switch on the projector for the projector motor is switched on. As will become apparent from the later explanations, at this point in time the control roller 10 is at the point 12, so that the projector motor cannot yet start.

57a- (A. 1718406. Fa. Ernst Plank, Nuremberg. | Device for the ^ Synchro-j g nisiercR einni film projector with cine .. * tape recorder April 26, 1955 *. P 8481. (T-6; line 1) __ · ._ L

If the tape recorder is now switched on, it will Tape 8 transported, the loop 8 · becomes larger scr and thus the resistance is given such a value that the projector motor starts to run. Should the whole If the device is shut down, it will be advised Tape recorder switched off. Since the projector motor is still running, the loop is shortened 8 ·, bi3 when the position 12 * is reached by the control roller 1o, the projector motor is also switched off. The establishment can then be reset immediately.

With 13 i "t the mains connection of the tape recorder and with H the connecting line between the Widarstendsön order and the projector motor »

The arrangement according to the invention also has the advantage da33 the film projector, the tape recorder and the dubbing device can be interrupted in a spatial arrangement that is very favorable for practical operation, as Figure 1 shows. The film projector is on your table 15 set up while the tape recorder 7 and the synchronizer 4 are under the table, so that the smallest possible floor space is required taken

The patent attorneys

Claims (1)

57a, 66. i? I84ö6 from Ernst Flank. Nuremberg. J device for synchro- 8. NjJZ. 1356 P 8181 / 57Θ 6m The patent attorneys Wehr, Seiler, Stehmann Schützen ^? smells 1.) Device for synchronizing a film projector with I a tape recorder, which is connected to both devices j and if the running speed deviates from I. Image and sound carriers have a resistor in the projector circuit controls, with the help of one from the tape recorder outgoing tape loop the regulation of the j speed of the projector motor takes place, thereby reducing] i indicates that the Tonbend- 3loop cooperating control equipment oich between the drive shaft (head) and the take-up roll of the sound \ handheld devices ^, where 3 is powered by the projector on the tape acting roller arrangement between a
Control roll of the sailing device and the take-up roll
the tape recorder is subordinate, 2.) Device according to claim 1, characterized in that
with the smallest possible length of the tape loop guided around the control roller, the resistance order β usge | 1 scolds or increases iot to such a value that the j The projector motor has stopped.