US574851A - Marie joseph henri joly - Google Patents

Description

2. Sheets-Sheet L (No Mod-e1.)

M.J.HTJ0LY.

Q KINETOGRAPHIG CAMERA. No. 574,851.

Patented Jan'. 5, 1897.

2 Sheets-Sheet`2. M., J. H'. JOLYl KINETOGRAPHIG GAMERA. l

Patented Jan. 5, 1897'.

(No Model.)

Tn: Nowms PETERS cu. P

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UNITED STATES ATENT rErcE.

MARIE JOSEPH HENRI JOLY, OF PARIS, FRANCE.

KINETOGRAPHIC CAMERA.

SPECIFICATION forming part of Letters Patent No. 574,851, dated January 5, 1897'.

Application filed October 16, 1896. Serial No. 609,183. (No model.) Patented in France March 17, 1896,110. 254,836.

To all wtort t may concern:

Be it known that I, MARIE JosErH HENRI JOLY, of Paris, France, have invented certain new and useful Improvements in Ohronophotographic Apparatus, also capable of being used for projecting positives, as fully described inthe following speciiication, and for which I have obtained French Patent No. 254,836, dated March 17, 1896.

This invention has reference to chronophotographic apparatus whereby a large number of photographs may be taken within a specified time, but which may also serve as a picture-projecting apparatus, and particularly relates to the mechanism for imparting an intermittent movement to the iilm through the dark chamber.

Myinvention can be best described in connection with the accompanying drawings, wherein-- Figure 1 is a Vertical sectional view through an apparatus embodying the invention; and Fig. 2 is an end view, partly in section.

The various elements of the apparatus are placed between two metal plates A A,in which are the bearings of the various arbors. The apparatus is of course inclosed in a dark chamber and movement of the parts obtained from any suitable motor. In the present description it will be assumed that the movement is imparted by hand from a crank a. This crank is mounted on a shaft l), upon which is secured a large gear-wheel C. The latter `gears with three pinions D d CZ', which last gears with the pinion d, the object of which will be explained hereinafter. The film is wound upon a roller I-l, whose shaft is mounted in the upper part of the casing. From this roller II the iilm passes, as shown in Fig. 1, under a guide-roller h, whence it passes over roller K', provided with two series of teeth 7c', that enter holes in the margins of the lm. The roller K is mounted on an arbor, on one extremity of which is fixed the gear-wheel D, that gears with the large wheel C. At the other extremity of the same arbor is mounted a beveled pinion f, which engages a second beveled pinion j" on the extremity of arbor f, which carries the obturator or shutter M. This shutter is a simple opaque disk with exposure-apertures m therein. From roller D the lm passes between two small guide-rollers m m and thence behind the objective P. The film then goes to a second feed-roller K identical with K and nally arrives at the bottom of the apparatus, where it is wound on a receiving-roller, (not showm) as usual.

In order that the apparatus should operate with the best results, it is indispensable that there be a stoppage or arrest of the lm at the instant one of the windows m of the shutter registers with the tube P in front of the film. I shall now explain how this arrest is obtained. Large wheel O gears, as stated, with the intermediate d', which in its turn actuates pinion d. This pinion is mounted on arbor L, which has on its end a disk R, carrying a crank-pin s. The latter is, by means of a forked arm t, connected with the shaft of a drum K, supported by two rods V, connected at their ends to the arbor of gearwheel O, upon which they swing as a pivot. It will be understood that the pinion d, which is mounted on the arbor of drum K, remains constantly in gear with wheel C during the back or forth movement given to it by the crank R and the wheels d d.

By observing the operation of the machine it will be understood that the reciprocation of the drum produces the stoppages during the movement of the film. The film being arranged as shown, if the crank d be turned the drum K and the shutter are set in motion. The iilm unwinds from the roller H and forms a fold or loop after leaving the drum K', as already explained in my patent dated October 20, 1896, No. 569,875, and therefore need not be further described.

In the apparatus shown it will be assumed that the gear-wheel C rotates in the direction of the arrow, Fig. 1. Crank-pin s will then move from right to left and push feed-roller K toward the top of its course. Vheel d is thus reciprocated in the same direction as that of the rotation of wheel O, and if the two speeds, that of the reciprocation of wheel d and that of the rotation of gear-wheel O, be the same it will be seen that wheel d will not be rotated, since the same teeth of the two wheels remain in engagement. On the other hand, in the second part of the movement of pin s, t'. e., when it descends, wheel CZ is reciprocated in an opposite direction to that of the rotation of wheel O, and will thus be IOO rotated at a speed which willbe that imparted to it by wheel C ii wheel d were in an invariable position, plus that transmitted by its bodily movement. Drum II will therefore be rotated at a speed to quickly advance the iilm through the dark chamber by an intermittent movement. It is not necessary that the upward movement of wheels CZ and K should be of a velocity equal t-o that of wheel C. It suffices that the decrease in speed of rotation of wheel. l( be such that the latter should simply displace along the lilm without carrying it along and consequentlbv without pulling upon that portion of the 'Film which at this time is behind the exposureopening.

The sizes of the wheels I) d, as well as that ol rollers I( Ii', are calculated so that the two rollers 'feed each other the same quantity of film. In like manner the dimensions ol' bevelgears f j" are calculated so that one et the windows or exposure-openings of the shutter is presented opposite the objective when the lilm is stationary. rlhe .rear end oi' the tube I is closed by a grooved plate p, in the groove of which passes the film.

IVhen instead el taking a series of negatives I want to project positives, I may place a mirror at the back et the dark chamber on a simple frame and cause the luminous rays te come from the rear, which would permit the projection of the images on ascreen placed at a distance.

Il'aving thus described mv invention, what I claim isil. In a chronephot i graphic or shifting picture apparatus, wherein a picture -bearing .film is employed, a :feed-roller acting on Athe film to ferm a loop or i'old therein in advance oi' the dark chamber and rotated by a continuous movement to unwind the hlm, a second feed-roller acting on the lilm alfter it leaves the dark chamber, said roller being mounted on a movable support, and means for turning said roller on its axis and for oscillating its support, thereby interinittentlvv advancing the iilm through the dark chamber, substantially as described.

2. '.lhe combination with. means t'or un relling the iilm, said iilm having peri'orations therein at regular intervals, ot' a rotating reciprocating roller having teeth thereon engaging the perforations in the film and act ing to pass the lilm through the dart: chamber b v an intermittent movement, andmea'ns for imparting said `movements or rotation and reciprocation to the roller, substantially as described.

il. The combination with means t'or Vunrolling the iilm7 the latter having' perli'iinations therein at regular intervals, ol. a roller having teeth. thereon engaging the perl'orationsI in the `film and acting upon the latter aifter it leaves the dark chamber, a gear-wheel for rotating said roller about its axis, and means for reciprocating the roller through au are the center oi which coincides with the axis ot' the driving-gear, substantiall \r as described.

l. In apparatus oill the kind described, wherein a perforated lilm employed, the combination with mea-ns t'or unrolliug the lilm, ot' a driving-gear, a Al'rame pivoted ai one end en the axle el the driving-gian, a roller, having pins thereon adapted to engage the perlorations in the illm, iournaled in the other ond of the frame, a pinion. on thiend of the shaft of the roiler meshing with the driving-gear7 and means for reeiprotaiting the trame, whereby an intermittent movement of the iilm through the dark chamber is ell'ected, substantially as described.

In an apparatus et the Vhind descrilwd wherein a perforated lilm is employed, thul combination, with a driving-gear, a toothed drum acting on the Vlilin to unwind the same and rotated from the driving-gear through an intermediate pinion, a swinging iframe having its pivotal axis coincident with that et' the driving-gear, a second toothed roller acting on. the film to intermittenitvv advance it through the dark chamber, said. roller being journaled in the iree end oil the i'ranu; and having a pinion on its axle meshing withthe driving-gear7 means-such as a disk, a crank-pin on the disk anda ['Jitman-o] er ated irom the dri ving-gear ior reciprocai ing the frame about its axis, substanliall ,\v as described.

In 'tesiimoirv whereol.' I have signed this specilication in the presence ot' i wo subscribing witnesses.

`Witnesses;

tino. U. llaznnroiv, Jr., EDWARD llannnnv.

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