US1907253A

US1907253A - debrie

Info

Publication number: US1907253A
Authority: US
Publication date: 1933-05-02
Anticipated expiration: 1950-05-02

Description

May 2, 1933. A v C, DEBRIE 1,907,253

CINEMATOGRAPHIC PRINTING MACHINE Filed Jan. 25, 1952 Fig- Patented May 2, 1933 Annan .n vieron chairman or rante manon Application died January Q3, i932, Serial No, mute, and in France November 259 itt'l.,

.inw of the picture-carrying film.

n particular it is possihle to print the titless texts or explanations alone `without it being necessary to cut the negative for inserting transparent parts carrying no picture. lit is also possible to obtain according to my invenn tion a title or a text extending only over part of the height ofthe pictures, the scene beingk photographed on the remainder the picture area apart from the title or text. it is also possible to print a title or tent surrounded by a picture or superimposed it.

Moreover the device according to my invention allows the automatic execution of the dierent luminous intensities required for scene printing without it heing necessary to resort to the more or less intricate mechanisms used heretofore for varying the lightI intensity through the provision of circuits inserting dierent resistances in the circuit of the printing lamp. v

My improved device comprises chiefly tvvo projection lamps of which one' has its beam passing through the negative on to the positive While the beam of the other falls directly on the positive Which may be impressed through its support or hack.

Between the first lamp and the negative is interposed an auxiliary strip which l will term hereinafter for simplicitys salte the screen strip7 although it does not alivays perform exclusively the part of a screen; between the second lamp and the device is interposed a' second auxiliary strip, 1which `will term hereinafter the tent strip.

The screen strip comprises opaque parts 50 which may extend either over the Whole height of picture or over only part thereof and which are adapted to intercept any iight which might fall on the negative7 these opaque parts being separated by transparent parts.

'lhese transparent parts may instead of losing of a uniform White or the like colour, be more or less shaded and sliov/ a variable transparency. rlhe shade may be moreover degraded and show a gradually varying transparency from one end to the other of the picture. Similarly the transparent parts extending over a partI of the picture the remainder of which is screened may be more or less shaded. Lastly this screen strip may also carry tents.

fis to the tent strip7 it carries tities or tents in hlaclr on a White background or in White on a hlaclr background, which extend either over the whole height of the picture or over partpthereof only. ylfhe tent strip also comprises entirely opaque parts.

'lhe and screen strips nuove simultaneously through the action of any suitahle means. is to the negative and positive strips, they move as usual ino a continuous manner in contact one with the other, the tvvo gelatine coated surfaces facing one another.

Different combinations of which this arran ement allows the execution will be des'cri ed hereinafter with reference to acconipanying drawing.

l" ig. l is a diagrammatic view of the Whole arrangement.

l ig. 2 and Fig. 3 show respectively a form of execution of the text strip and of 'the screen strip.

Fig. 4c illustrates a practical form of execution of the invention.

ll have shown in il ig. l the negative iilm l and the positive film 2 which advance simultaneously through the printing machine in an uninterrupted manner with their gelatined-coated surfaces facing one another and in contact one with the other. A first lamp 3 "sends its 'beam on to the negative film and through the latter on the positive film. The screen strip if constituted in the manner descrihed moves parallel to the negative and positive films and is arranged across the path of the light rays issuing from the lamp 3, between the latter and the negative 1. On the other hand a second lamp sends its light beam on to the rear of the positive film 2. the text strip being interposed across the path of the beam and moving parallel to the films 1 and 2 in synchronism with the screenstri 4.

The arrangement being as described, different cases are to be considered. V

l-the screen strip 4 shows in the part through which the rays from the source 3 ass a transparent part throughout the lieight of the picture, as shown at 7 in Fig. 3; at the same time the text strip 6 shows in the part through which the rays from the source 5 pass an opaque part throughout the hei ht of the picture as shown at 7 in Fig. 2.

is case corresponds to ordinary printing using the full intensity of the lamp 3, the positive film being printed in the usual manner through the-negative. This printing is performed during the passage of a certain number of negative pictures, lsay 200 while the

strips

4 and 6 remain stationary.

2--the screen strip 4 shows a more or less" shadowed part throughout the picture as shown at 8 in Fig. 3. while the text strip 6 which has moved together with the strip 4 shows throughout the picture area an opaque part 8 (Fig. 2). The image of the negative 1s printed on the positive, but with an intensity which is reduced due to the shadowed part on part strip 4. This case is that of normal printing but with a reduced illumination. This shadowed printing may last, for a given intensity of illumination, during the passage of a certain number of negative pictures, say 100, the

strips

4 and 6 remaining of course stationary during this time.

3-the screen strip 4 shows an opaque part throughout the picture area as shown at 9 (Fig. 3) while the corresponding part 9 of the strip 6 (Fig. 2) carries throughout the height of the picture area a title or letterpress in black on white background or in white on black background. The picture on the negative cannot be printed on the positive because the rays from the lamp 3 are arrested by the strip 4; on the contrary the text carried by the strip 6 is printed on the positive through the support thereof in white IPon black back ound or reversely according lto the case. his printing continues while say 50 unimpressed picture areas of the negative pass through the machine, the

strips

4 and 6 remaining stationary during this time.

4the screen strip 4 shows a transparent part 10 throughout the picture area and carries a text in black letters which prevent the passage of the light from the lamp 3, the corresponding part 10 of the text strlp being completely opaque. Consequently the negative plcture is printed on the positive exce t 1n front of the letters formed on the strip 4 whereby I obtain finally on the positive White letters surrounded by the picture.

5-the screen strip 4 shows a part 11 transparent throughout the picture area while the corresponding part 11 of the text strip 6 is opaque throughout the picture area, and carries white letters which allow the light to pass. The image of the negative is printed entirely on the positive while the letters of the text strip are printed in'black over theo f5 picture.

6-the arrangement being the same as in the cases 4 and 5, the transparent parts of the screen band 4 are more or less shadowed whereby the printing is effected through the negative with a corresponding reduced intensity.

7--it is possible to retain the same conditions of printing as in above case 4, but with a degraded shadowed part for strip 4, the lesser shadow being provided round the letters. I obtain thus on the positive a picture which is blacker round the white letters which appear thus more sharply.

8-under the same conditions as in case 5, I may give the strip-4 a degraded shadow the maximum of which appears in the part corresponding to the letters of the strip 6. The positive picture is thus lighter round the black letters.

9-the screen strip 4 shows a trans arent part over a more or -less considerable eight of the picture and is opa ue over the remainder of this height (as s own at 12 in Fig.

`3). It forms thus a mask; the strip 6 shows apart 12 forming a complementary mask for the parts which are not covered by the mask on strip 4 rand carries in its remaining transparent part black letters.

The image of the negative corresponding to the transparent part of 12 is printed on the positive and the letters of 12 are printed in white on black on the remaining part of the positive.

lO-the screen strip 4 appears -as 1n case 9 above as concerns the part/13 used on it (Fig. 3), but the strip 6 is o aque and carries transparent letters in tlie art corresponding to the o aque part o the strip 4 as shown at 13 ig. 2) consequently the positive carries a picture corresponding to the transparent part of 13 and black letters on a white background on the remaining part ofits picture area.

ll-Lastly under the same conditions' as for cases 9 and 10, the transparent part of the strip 4 is darkened to the desired extent.

Obviously the

diiferent parts

7, 8, 9, 10, 11, 12, 13 of the strip 4 and the corresponding arts of the strip 6 may succeed one another 1n any desired order, several parts such as 8 having different degrees of transparency being arranged in sequence.

In those cases where the negative already carries a text, the combinations 9, 10, 11 above neonata disclosed allow the. substitution therefor of another text, `which may loe Written e. g.. in another language, Without touching the original negative, l,

ll have shovvn in Fig.. d a term of execution oito a printing machine provided with the improvements vvhich are the ohject ot the present invention. The casing ifioit the machine is provided on one side with a printing channel through which the negative iilm l and the positive lilm 2 are adapted to move the emulsions on these hlms lacing one anothere Both lms are uninterruptedly driven hyo a suitable control mechanism not shownn 'lo a control shaft 16 the control means oi' which are not shovvn, are keyed tvvo toothed drums i7, 18 adapted to drive respectively at each change in the text to loe printed or in the intensity ot the picture printing the screen strip d andthe text strip 6,

Behind the screen strip l is disposed a lantern i9 enclosing the lamp 3 the light ot which passes through the condenser 20, the strip l and inside the case li. the objective 2l after which it falls on a prism or mirror 22 which reflects it laterally on to the negative l and through the latter, on to the positive 2.

@n the other hand, behind the tent strip dis disposed a second lamp 5 enclosed in a second lantern 23 vand the light ot which passes through the condenser 24, the strip 6 and the objective 25 after which itiialls on a prism or mirror 26 which reflects it on to the rear side of the positive film 2 which is thus impressed through its support..

The shutter 27 is adapted to intercept the light passing out of the lamps during the simultaneous advance movements ot the lms 1 and 2.

What l claim is:

l. A device for the simultaneous printing of titles and ictures on a positive comprising a negative lm, a ositive film, a printing gate, means for ma ing both said lms ad Vance simultaneously throughout operation through said gate, a title band including opaque portions on the side of the positive iilm opposed to the negative, a screen hand ,including opaque portions on the other side of the films, means for, advancing the corresponding portions of both bands in `liront of 'the gate as required by the progress ot operation and means )for simultaneously illuminating the positive film through the title hand on one hand and through the screen hand and negative hlm on the other. i

2. A device for the simultaneous printing ot titles and pictureson a positive com prising a negative film, a positive lilm, va printing gate, meansifor making hoth said lms advance simultaneously throughout operation through said gate, a title hand including opaque portions on the side of the positive lilm opposed to the negative, a screen hand including opaque portions Correspundn ing to a series ot picture areas through part of the height thereof onthe other side oir' the film, means for advancing the corresponding portions or looth hands in iront ost the gate as required loy the progress of operation and means for simultaneously illuminating the positive lilm through the title hand on one hand and through the screen hand and negative iilm on the othere 3.. A device Ytor the simultaneous printing ot titles and pictures on positive comprise ing a negative ilm, a positive iilm, a printing gate, means for making hoth said r'ilms adn vance simultaneously throughout 'operation through said gate, a title hand including opaque portions on the side of the positive iilm opposed to the negative, a screen hand including opaque portions corresponding to a series of picture areas through the entire height thereof on the other side of the iilms, means for advancing the corresponding por`= tions of looth hands in front of the gate as required by the progress oi operation and means for simultaneously illuminating the positive film through the title hand on one hand and through the screen hand and negative .film on the other.

A device itor the simultaneous printing ot titles and pictures on a positive comprising a negative i'ilm, a positive lilm,a printing gate, means tor making both said films advance simultaneously throughout operation' through said gate, a title band including opaque portions on the side ot the positive .film opposed to the negative, a screen band including opaque portions and portions of varying opacity on the other side of the lilm, means for advancing the corresponding portions ot hoth hands in front of the gate as required by the progress of operation and means for simultaneously illuminating the positive film through the title band on one hand and through the screen band and negative film on the other..

5. A device for the simultaneous printing of titles ard pictures on a positive comgli lld

prising a negative iilm, a positive hlm, a y

. portion ot the title hand on the other side ot the nime, means for advancing the corresponding portions ont looth hands in iront of the gate as required hy the progress ot operation and means 'for simultaneouly illuminating the positive film through the title hand on one hand and through the screen hand and negative film on the other.

6., A device for the simultaneous printing A of titles and pictures comprising a negative film, a positive ilm,' a rintin gate, means for making both said-Elms a vance simultaneously throughout o eration through said 5 gate, a tltle band inclu ing opaque portions, a screen band including opaque ortions, `means for advancing the corres on ing portions of both bands in front o the gate as required by the progress of operation and illuminating means for impressing the positive with the pictures of the negative through the screen band and with the titles on the title band.

In testimony whereof I have aixed my signature.

ANDR Lion vlc'rok CLEMENT vlaams.