US759693A - Apparatus for synchronously operating phonographs and kinematographs. - Google Patents

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8/ A j Wil /n ea'e as? 1%?) @74 Z01? X .7 071/ jocatoy t No. 759,693. PATENTED MAY 10, 1904. L. GAUMONT.

APPARATUS FOR SYNGHRONOUSLY OPERATING PHONOGRAPHS AND KINEMATOGRAPHS.

APPLICATION FILED DBO. 17, 1902. H0 MODEL.

UN TE" STATES Patented May 10, 1904.

PATENT rrrcn. f

LEON GAUMONT, OF PARIS FRANCE, A SSIGNOR TO STE L. GAUMONT ET (3111, OF PARIS, FRANCE. 7

APPARATUS FOR SYNCHRONOUSLY OPERATING .PHONOGRAPHS KIN EMATOGRAPHS.

SPECIFICATION formingpart of. Letters Patent N0. 759,693, dated lliIay 1Q, 1904.

Application filed December 17, 1902. Serial No. 135,469. (No model.) '7 I To all whom it may cort'cerhl:

Be it knownthat 1, Lion GAUMoN'r, a citizen of the French Republic, residing in Paris,

. France, have invented certain new and useful Improvements. in Apparatus for Synchro nously Operating Phonographs and Kinematographs, of which the following is a specification.

It will be proper to explain in order that the object of the present invention may be better understood, that in apparatus where the kinematograph is controlled by the phonograph it has been necessary'heretofore to conple the kinematograph to the phonograph at the precise moment when one hears the-signal, as a drum, bell, or whistle, which has-recorded on the cylinder of the phonograph some seconds before the commencement ofthepiece. It is owingto the precision of this putting-in motion of the kinematograph that one obtains a perfect synchronism tothe end of the piece between the reproductions of the phonograph. and the successive views of the figures which the kinematograph shows. In practice it is difficult to always couplethe instruments at the precise moment when the signal is heard, and a delay of a fraction of a second even is sufiicient to-produce an appreciable disagreement, which spoils the whole effect and which on account of the synchronism persists to the end of the piece.

The object of this invention is to provide improved means whereby immediately after the starting of the kinematograph an absolute concordance between the effects of the two apparatus is effected. This control can be obtained either by acting mechanically on the kinematograph or by producing a certain shifting of the collector which puts the phonograph in motion and by which an electric current is provided by a dynamo-receiver,

which must work the kinematograph. 'The shifting thus produced on the collector by which the current is transmitted to the receiver gives place necessarily to an arrangement of the kinematograph which rectifies the synchronism if it has not been established perfectly at the start. 1

In the accompanying drawings, illustrating the ring Q, and vice versa.

embodiments of the invention, Figure 1 is a sectional elevation showing differential gearing at the phonograph for effecting the concordance of the synchronism between itand the phonograph. Fig. 2 is a sectional elevation of another mechanical device situated between the phonograph and kinematograph for eflectingthe same object, Fig. 3 is a sectional elevation of mechanical means for effecting the same object by shifting the collector at the phonograph about its axis. Fig.

4 is an enlarged cross-section of the collector.

Z, connected together by two satellite pinions a 6. These. two pinions are mounted on'a ring Q, which can turn freely in suitable bearing around the axis of the shafts Y Z when it is not fixed or stopped by the set-screw 0. If, then, at the starting of the kinematograph the ring Q, is fixed by its screw 0, the shafts Y and Zstart at the same time in consequence of the engagement of the; wheels I J and w b; but if, the apparatus beingin motion, one un' screws the screw 0, thus disengaging thering Q, and if the said ringbe caused to turn one will effect a relative disagreement of the-two shafts Y and Z either in one direction or the other, according to the direction in which saidring Q is rotated, assuming that Y is the controlling-shaft, which receives the movement of the phonograph and which makes ten revolutions per second in-the direction of the arrow f. 1f when in motion the ring Q is displaced in the same direction as that of the arrow f, the wheel J, which turns in an inverse direction to the wheel I, will be retarded one turn on the wheel I for a half-turn of One can then thus easily quicken or slacken the motion of the kinematograph not only. by a very small fraction of a second, but also of several seconds. It is evident that this arrangement can be arranged between any points of the mechanism which puts in constant angular relation the movable parts of the phonograph, such as the cylinder or disk and the parts which work the film of the kinematograph. It can equally well be placed near the phonograph in order that the operator can control without having to go to the side of the kinematograph.

Fig. 2 represents another mechanical arrangement which can be placed at any point between the phonograph and the kinematograph. On oneof the transmission-shafts U, which is divided on the line 00 ac, so as to form independent shafts, is mounted a sliding sleeve T, which one can displace to the right or left tiguous to the line at w.

placement.

by the intermediary of a collar V, which permits of said sleeve turning about its axis. The collarV is actuated by means of a lever L, which may be stopped at any point-for example, by means of a pin d, whose extremity presses on a sector 6. The sleeveE is provided with a key g, adapted toslide in a groove formed in one part of the shaft U, so as to participate in the movement of rotation of the said grooved part of this shaft U, while at the same time being capable'of longitudinal dis- At the other extremity the sleeve T carries a stud h, which engages in a screwthread 70, formed on the part of the shaft U at the-left on that extremity which is con- If now the sleeve E is displaced, for example, to the right, by means of the handle L, the part of the shaft U which carries the thread of the screw is must be rotated for a distance which depends on this longitudinal displacement in order to permit this displacement. One will be able to thus differentiate in one direction or in the other by a portion of a turn or even by one or several turns the part of the shaft U at the left relatively to the part thereof at the right.

In apparatus such as thatl have before referred to a collector is employed to which the current is supplied by two rotating brushes, the movement of these brushes being transmitted in a perfectly synchronous manner to a receiver. Now if this collector be rotated one or several turns in one direction or am other a corresponding slowing or quickening by-one or several turns of the receiver will be effected by the movement of the brushes. As these latter are in relation with the ph0-' nograph and as the dynamo-receiver works the kinematograph one will produce in this manner the desired agreement between the phonograph and the kinematograph. It is an arrangement of this kind which the accompanying c awings represent in Figs. 3 and 4. The collector is represented at C and the rotating brushes at D E. The wires which connect the collector to the receiver would oppose the rotation of collector if they were grouped in the form of cables; but to be able to produce the rotation of the collector (J, I connect each plate a: of the collector, Fig. 4:,by a wire '5, which lies in a groove 7' of the shaft m, of insulating material, which carries the collector.

Each of these wires 2' terminates in a ring a,

which is fixed on the exterior of the shaft m. There are as many rings 10 on the exterior of the shaft on as there are plates w on the collector c. On each of these rings 12 is applied a brush connected to the corresponding wire of the dynamo-receiver which works the kinematograph. On the extremity of the shaft 1 m is mounted a bevel-pinion p, which engages with another bevelpinion q, fixed to a shaft 9*, provided with a milled button 8. By turning this button in one direction or the other one causes the collector G to turn and one produces thus the desired disagreement under the previously-explained conditions.

It is evident that instead of arranging the rings on the cylindrical surface of an insulat- --ing-cylinder m, as I have just described, one

could arrange concentric metallic circles on an insulating-plate, the brushes being in contact with the said rings. To avoid sparking from the extra'current when the brushes pass between the successive plates of the collector, (see front view of Fig. 4,) I arrange between these plates (0 two to two a resistance u without self-induction which one obtains by rolling together two insulated wires whose extremities are connected.

I claim' 1. In mechanism for driving a kinematographsynchronously from and by a phonograph, hand-operatable means between said instrument for correcting and altering their synchronism when the kinematograph shall not have been started simultaneously with the phonograph.

2. Means for correcting and altering the synchronism between a phonograph and a kinematograph, which consists of a drivingshaft, an alined shaft driven therefrom, a bevel-wheel I on the driving-shaft, a bevelwheel J on the driven shaft, a ring Q rotatable about the meeting ends of said shafts and concentric therewith, a set-screw c which secures said ring against rotation, and a bevelwheel rotatively mounted in said ring and gearing on opposite sides with the respective wheels I and J.

In witness whereof I have hereunto signed my name, this 1st day ofDecember, 1902, in the presence of two subscribing witnesses.

LEON GAUMONT.

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