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Publication numberUS1027248 A
Publication typeGrant
Publication dateMay 21, 1912
Filing dateJan 27, 1909
Priority dateJan 27, 1909
Publication numberUS 1027248 A, US 1027248A, US-A-1027248, US1027248 A, US1027248A
InventorsJules Greenbaum
Original AssigneeRaleigh & Robert
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Film and method of synchronizing the operation of kinematographs and talking-machines.
US 1027248 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)






Jonas emimauu, 6i BERLIN, exam, AssIeNon. To meter: .0; 30mm, or

rams; t mes, a Firm.


Toallwhom'itmay i 3 1 3a it'known that I, JULES GRaENBAnM, a cltizen of the United States of America, and

. residingat Berlin, Germany, have invented .a new and pseful Improved Film and Method of Synchronizing the Operation of Kinematographs. and Talkie ..=-Machines;

and I do hereby" declare the fo owing tobe -.a full, clear and exact description of the same. a

The present invention relates to the cone trol of the conjoint action of kinematographs and talking machines, and a primary object is to facilitate the synchronization of the visual and acoustic records-duringthe reproduction. The method adopted for this purpose, according to the. present invention, substantially consists in mcludin subject-matter of the photographic record in the an object, for example a rotating pointer, which moves at arate roportionate to the rate of movementoft e kinemato aphic apparatus, so that successive'phases o movement of this objectappear on successive pictures, and in projecting ontojthe screen,

during the re reduction, an image of an-' other object, or examp another pointer, which is moved by the ,mechanism of the talking machine at the same'rate as thephotographic object.- In the animated photograph the photographed pointer appears,

of .course, in a stateoffcontinuous rotation.-

During the reproduction the-images of the twopointers. are kept under observation. While the talking machine and kinematograph are working synchronously, 'thetwo pointer-images maintain anniform relation to each other as regards position. "An disturbance of-synchronism is immediate y in Figure 1 1s a diagram of an apparatus for carrying out my new method. Fi 2 Elm,

represents a piece ofkinematographic on an enlarged "scale, with thecontrol indi:

cator photographed thereon, and Fig. 3 represents a detail of apparatus used for the' purposes of the invention.

At the time of taking'the pictures a clock-. like device with a black face or disk and Specification ct Letters Patent. Application filed January 27,1908. serial iio. 474,474.-

Patented May 21, 1912.

if pointer is arranged 'on the stageused.

The white pointer is uniformly rotated by the .kinematographic apparatus, by means of suitable. connectingmechanism, so that "the siiccessive phases of the rotation are represented on the film a of the kinematoas shown in Fig. 2. .When reprou'cing'the pictures the white pointer shows of-ico. me on a black field b in'the picture and appars to be in continuous rotation.

-=I;n;the objective tube a of'a projection apparatu's d there is a disk f, having 'a' intershaped aperture g, as clearly shown in Fi .1 and This disk is rotated by means 0 aflexible shaft h connected to the actuating mechanism of the talking machine'B. An

imageiofthe aperture is thus projected, to

represent awhite pointer on a black field,

and the-projection is so arran' d that the image of the disk f exactly coincides with the black, circular'field b 1n the kinematographic picture. Consequently only a,single black field" appears on the screen i, but there are two ointer ima "es, one in the picture itself, an the other t e pro'ected image of the aperture in the disk f. en the two machines are workings chronously the two pointer images coincidl a with each other, and only one pointer image is. apparent. If,

however, a disturbance of synchronism oc--' curs the pointer image of the disk appears at some other part of the black field, so that the disturbance is indicated and can be corvrectedb "known means, by acceleration or retardation of the kinematograph.

to. secure by Letters Patent is:

1'. The herein described method of syn"- chroliizing the operation of a kinematograph and talking machine consistin What I claim as my invention and desire in pro ecting on to a screen a succession o pictures, each bearing marks to indicate the 7 speed at which the pictures should be reproduced and independe'ntl. projecting u on g diieate the speed at said screen marks. to in which the'talking machine is being operated, and 'varyingthe relative speed of the two apparatus referred tojto preserve a uniform relative position of the marks referred to upon the screen. V

2. The herein described'method of syn.- chronizing the operation of kinematographs and-talking machines consisting in projecting on to a screen a succession of pictures sition of the marks upon the screen.

3. The herein described method of synchronizing the operation of kinematographs and talking machines consisting in projecting on to a screen a succession of pictures each bearing marks which appear to rotate at a speed at which the pictures should be reproduced, and independently and simultaneously with the aforesaid project-ion on the pictures upon the screen rotating 2. part having a slit therein, the last named rotation being at a speed at which the talking machine is being operated, and projecting an image of said slit upon the portion of the screen bearing the marks first mentioned.

4. A film for a' moving picture machine having thereon marks or devices to indicate the speed at which the machine should be operated. v

5. A film for a moving picture machine having thereon a series of progressive marks or devices adapted to be thrown on a screen to indicate the speed at which the machine should be operated.

6. A moving picture film or record provided with a consecutive series of marks indicating the speed at which the film should be moved to time it with the movement of a talking machine.

7. A moving plcture film or record pro- 7 vided with a progressive series of marks adapted when consecutively thrown on a screen to form a visible indicator of the speed of the film. i

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5280314 *Apr 20, 1992Jan 18, 1994Ron HymesFilm streamer cuing system and projection system
U.S. Classification352/5
Cooperative ClassificationG03B31/00