US1058809A - Printing apparatus. - Google Patents

Description

G. 0. THOMAS.

PRINTING APPARATUS.

APPLICATION FILED MAB. s, 1911.

1,058,809, Patented Apr. 15, 1913.

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fia/li rNVEN TOR VW NESSE I COLUMBIA PLANDGRAPH C0.,WASH|NGTON, D. c.

'G. C. THOMAS.

PRINTING APPARATUS.

APPLICATION FILED MAE. 3, 1911.

Patented Apr. 15,1913.

4 SHEETS-SHEET 2.

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INVENTOR COLUMBM PLANOGRAPH CO-IWASHINGTON. D. c.

G. C. THOMAS.

PRINTING APPARATUS.

APPLICATION FILED MAR. s, 1911.

Patented Apr. 15, 1913.

4 SHEETSr-SHEET 3.

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INVENTO R \IVITNESSESZ COLUMBIA PLANUGRAPH 50., WASHINGTON, D. C

G. G. THOMAS.

PRINTING APPARATUS. APPLICATION FILED MAB. 1911.

Patented Apr. 15, 1913.

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HVVENTOR WITNESSES;

COLUMBIA PLANOGRAPH CO.,WASH1NGTON. D. c.

GEORGE CHARLES THOMAS, 0F LISCARD, ENGLAND.

PRINTING APPARATUS.

Specification of Letters Patent.

Patented Apr. 15, 1913.

Original application filed September 3, 1910, Serial No. 580,360. Divided and this application filed March To all whom it may concern Be it known that I, GEORGE CHARLES THOMAS, a subject of the King of England, residing at 2 Beach Bank avenue, Liscard, in the county of Chester, England, have invented new and useful Improvements in Camera Printing Apparatus, of which the following is a specification.

This invent-ion has reference to cameras or apparatus for printing positive kinematograph films from negative films, and it has primarily for its object to provide an apparatus of this kind which is simple and inexpensive, and at the same time accurate and certain in action, and in which can be used the standard sized kinematograph film, and is easily worked or used, and generally convenient and advantageous.

This application is a division of applicants prior application No. 580,360 filed Sept. 3rd, 1910 which matured into Patent No. 1,010,591 granted Oct. 8th, 1912.

The invention will be fully described in connection with the drawings hereto an neXed, which illustrate it.

In the drawings, Figure 1 is a side elevation of the apparatus with the side 'door partly broken away, and negative holding spools in position; Fig. 2 is a side elevation with the negative spools removed showing the opposite side to that shown in Fig. 1; Fig. 3 is an end view of Fig. 2; and Fig. 4 is a plan. Fig. 5 is an outside side elevation, Fig. 6 an end elevation, Fig. 7 a sectional side elevation, Fig. 8 an elevation viewed from the back, of the film and shutter operating moving mechanism; and Fig. 9 is an elevation of the mechanism viewed from the same side as Fig. 8, but with the parts opened out; and Fig. 10 is a sectional plan of the mechanism. Fig. 11 is a detail showing a light trapped aperture in the top and bottom of the apparatus.

Referring now to the drawings, A is the general case of the apparatus, which is in the form of a box camera; and B generally designates the frame which fits within, and is adapted to slide in and out of the case A, and which carries the film moving mechanism and shutter.

C is t-helens at one end of the case; D is a hinged door at the back end of the camera; and E is a screen of known form and comprising a piece of ground glass or its equivalent carried in a frame for focusing pur- Serial No. 612,001.

poses. The whole of one side of the camera case is in the form of a hinged door F, and is shown in section in Fig. 3. This door gives general access to the interior of the case.

The slide frame B, carrying the mechanism for moving the films, shown in Figs. 5 to 10, is capable of being placed in the camera by sliding it in a suitable grooved way Gr inside it, when the door F is opened down upon its hinges. The grooved way is illustrated in Fig. 1, and in section in Fig. 4, wherein a part of the case is broken away for illustrating it.

In the operation of printing, the negative film O and a positive film O are placed together, and run together through the mechanism as one film the negative being wound off a spool 72 disposed outside the case, and wound on to a spool 73 similarly disposed, while the positive film O is wound oii a spool 74 and on to a spool 75 disposed within the case; that part of the negative film within the case being disposed between the light and the positive. The negative film is fed into the camera through an aperture 60, which is provided with a light excluding means of any suitable kind, marked 61 in the drawings; it is taken out through a similar aperture, with a light excluding means in the bottom. And these apertures are provided with shutters 62, which are closed over them when desired. The negative film is wound on to the spool 73, as it emerges from the camera case, by gearing such as a pulley band 76 engaging with the pulleys 77, 78 the latter of which is on the spindle of the spool 75, which is driven from pulley 54 on the shaft of the winding handle 50.

The film moving mechanism comprises two pairs of toothed sprocket wheels, a pair 1 being at the lower end, and the other pair 2 being at the top; and their carrying spindles 3 and at respectively are geared together through beveled toothed wheels 5, the vertical shaft 6, and bevel wheels 7 and the spindle 3 is rotated by hand actuated gear, hereinafter described. The sprocket wheels 1 and 2 are thus driven positively and continuously, and they are adapted to feed the negative film to the mechanism from the negative film spool outside the case, and the positive film to the mechanism from the positive film spool in the positive film box, which is situated inside the camera behind the frame B (say at the back of this chamber), and also to feed the positive film back onto a lower or taking up spool in the positive film box, as the kinematographic photograph is being printed, and to feed the negative film on to the spool 7 3, also outside the case. Between the sprocket wheels 1 and 2, are a further pair of toothed or sprocket wheels or rollers 8, mounted on an axle 9, and intermittently operated at the same time as the wheels 1 and 2, and which actually and positively effect the movement of the films intermittently past the exposure aperture 10 in the frame B; while, as stated, the other pairs of wheels 1 and 2, respectively move the films positively to these intermittent intermediate rollers 8, and away from same, but continuously. The upper pair of rollers 2, as already stated, take the films from the film spools, feeding them to the intermittently moving middle pair of wheels 8; and the lower pair 1 take them from the intermittently moving pair of wheels 8, and feed and deliver them to the taking up spools in side the film box.

The negative and positive films in Fig. 7 are designated 0 and 0 respectively, and between the upper wheels 2 and the intermediate wheel 8, a loop of slack film is arranged to exist, as shown; while between the middle sprocket wheels 8, and the lower wheel 1, another loop of film is arranged to exist, as shown. This enables the intermittent and relatively quick action of the rollers or wheels 8, which actually moves the films past the exposure aperture 10 to take place; while the slower action of the feeding in and paying out sprocket wheels 1 and 2 is constant. Portions of the peripheries of the intermittently moving wheels 8 project a slight distance beyond the rear surface of I the frame plate B over which the films move; while the peripheries of the lower pair 1 project a greater distance rearwardly beyond this surface, so as to give a positive supply to the lower spool 7 5 of the film box; while the supply or upper pair of sprocket wheels or rollers '2 stand clear of the rear surface and are at the back of the plate B, and over the top of the rollers 2 the films pass, so as'to form a more reliable grip to the films in pulling them off their upper spools, the grip being rendered etlicient by the spring plate 18. During the operation, the continuously operating wheels 1 and 2, are revolved, from the spindle 12which is actuated from outside through the handle 50; a small pinion 13 upon the spindle 12; a toothed wheel 14 on the spindle 15 with which 13 meshes; a pinion 16 on the spindle 15; a toothed wheel 17 on the spindle 18 with which the pinion 16 meshes; and a toothed wheel 19 on the spindle 3, driven from the toothed wheel 17. By this gearing, the speed of the film moving sprocket wheels is reduced. By this action the intermittently moving sprocket Wheels 8 are, through gear wheels 17 and 19, also moved by a pin 20 on the disk wheel 21, fixed on the spindle 12; the pin operating in connection with a Geneva stop star wheel 22, which is fixed on the spindle 9 of the sprocket wheels 8. Hence, in each revolution of the shaft 12 and wheel 21, the wheel 22 will be driven one-quarter of a revolution, there being four gaps in it; while during the moments of projection, it will be held stationary by means of the periphery of the wheel 21, in the well known way of a Geneva stop mechanism.

The gearing just described drives, in addition to the fihn moving rollers, the revolving shutter 24. This is effected through the toothed wheel 1 1, which meshes with a crown wheel 25, fixed on the spindle 26 carrying the shutter 24- on its forward end. By this means, the shutter, which is of duplex kind, that is, comprises two similar portions movable and adjustable relatively to each other, will be operated, 2'. e. revolved, over the aperture in the end of the casing, over which the lens C is fitted. The adjustment of the two similar portions of the shutter 24 is effected by releasing the nut on the forward end of the spindle 26, and disengaging a pin on one portion from one aperture, and

en a in the in with another a erture, of

D C! h r a plurality of apertures in the other portion and retightening the nut. See Figs. 5 and 6.

To operate the mechanism at the required rate, for projecting the photographs on the film, on to a screen or otherwise, as in kinematographic exhibition, the movement is effected by turning the spindle 18, on which the sprocket wheel 1 is fixed, by the turning keywhich is adapted to receive it, as shown in Figs. 4, 6, 8 and 10.

In connection with the rollers or sprocket wheels 1 and 8, there are employed gates 28 and 29, respectively, having a pair of grooved rollers 30 and 31 in connection wheels in the required way, and at the same time allow of any extra thickness of film to pass through. The gates 28 and 29 are hinged at one side at 32, so that they can be :opened when it is desired to thread films into position, on the wheels 1 and 8; and

after placing the films in position, with the loop of slack between such gates and between the Wheels 1 and 8, the gates are closed and fastened, and held in position, by means of the hinged clip fasteners 33.

Above the intermediate feed rollers or sprocket wheels 8, the exposure aperture 10 in the frame plate B is provided; and in connection with and over this aperture, there is a gate 34, having a short tubular or box aperture 35, which extends from the back of the gate, practically to the face of the aperture 10; and this tubular or box aperture is movable up and down in the gate 34 (which has an opening in it to admit of the movement of this box 35), the movement being effected by a milled disk 36, and spindle of which is carried in the gate 34, and has on its inner end a toothed pinion 37, meshing with a rack 38 on the front plate of the box aperture 35, which slides up and down on the outside of the gate 34. By this means, the opening or aperture through which light will strike the films may be adjusted vertically as required. There is also used in connect-ion with this box aperture 35, a slide 39, held, and adapted to move in guides 40, by which this aperture may be opened or closed, as and when desired. There is also used in connection with the main frame plate B, a sliding or adjustable shutter 42 in the aperture 10, as shownin Figs. 6 and 7. This shutter 42 has a part which is received in a recessed portion of the plate B, and is formed with slots for the passage of screws on which the shutter is adapted to be moved, and by which it is held in any desired position. The shutter 42 can be adjusted relatively to the movable aperture 35.

The gate 34 carrying the adjustable aperture has a saddle or how-spring 43 011 each side, bearing on the face of the plate B, when the gate is closed, and secured at its upper end to the gate; and it-the gate also carries on spring arms 44, a roller 45, which presses the films O and O on the surface of the plate B. The springs 43 bear upon the sides of the films, and keep them firm and flat with an even pressure on the main frame plate B, over the aperture 10, over which they slide; while the roller 45 keeps the films steady on the plate as they move toward the aperture; while the springs 44 holding this roller 45 permit it to move away from the plate B, and go back again, as and when extra thicknesses of film pass through, and thus preserve evenness and steadiness of picture. The gate 34 is held in the closed position by a hinged catch 46, which is similar to the catches 33; and all these gates are thereby held in their active or closed position by these catches in a manner that will give the required firmness of position in relation to the film.

The upper feeding-in toothed sprocket Wheels 2 are placed entirely on the front side of the plate B; and they have over them a guide 48 for the film, consisting of a curved thin sheet metal plate, between which and the teeth of the wheels 2 the film passes from the film box; the teeth of these wheels projecting through spaces between the different members of the guide plate 48 when at their upper position, as shown in Figs. 7 and 8. By means of this guide the films are held in contact with the sprocket wheels. Immediately below the sprocket wheels 2, there is another guide 49, also carried from the plate B, which holds .the films to the wheels 2 and directs the films outward, and helps to form the upper loops of film between these sprocket wheels and the aperture 10 over which the films slide. The other sets of toothed or sprocket wheels 1 and 8 are on the opposite side of the plate B to the wheels 2, and are carried from it and project through apertures in it.

The Geneva stop mechanism for operating the intermittent film moving rollers 8 causes the films to be alternately held stationary over the aperture 10, and to be suddenly and quickly moved the required amount over this aperture, during which time the shutter will be disposed between the light aperture and the lens; while when the film is stationary, it will not intercept the rays of light from the lens to the film.

Vith regard to the actuating of the film moving mechanism, the spindles 12 and 18 can be engaged and geared up with the operating handle or handle key 50 shown in Fig. 4, by apertures 51 provided on the side of the case A, in connection with which the hinged closing shutters 52 operate; so that when the one aperture is opened for engaging one of the shafts or spindles by the crank key 50, the other can be closed; and vice versa. And when no handle is used, both can be closed, so as to make the camera light-tight. The tubular part 53 of the crank key 50 is made to fit tightly in the apertures or holes 51, so as to assist in preventing light passing into the camera in this way. Further, in connection with the crank key 50, there is a grooved pulley 54; and in connection with the winding-on roller of the films in the film box placed at the back of the inside of the camera, or on the outside of it, there is a pulley 55, adapted to be fitted onto the axle of this roller, and which projects on the outside of the camera; and between these pulleys 54 and 55, there is an indiarubber or flexible cord, or a chain or the like 56, by means of which, as the films are fed through the moving mechanism and discharged from the roller 1', they will be positively wound up onto the take-on roller. Over the aperture through which the pulley 55 enters the side of the apparatus, there is provided a closing shutter 57 similar to the shutters 52, for

closing up this'aperture when the wheel 55 is removed.

Access is had to the whole of the interior of the apparatus, namely, the box or case A, and all the movable parts used inside it may be inserted or withdrawn, through the one side, by means of the hinged door F, which has its hinges preferably at the bottom, and is secured by catches 64:, at the top.

The lens portion C is mounted on a movable carrier 65, which has a bellows portion 66 between it and the end of the body A; and these portions are moved in or out, as may be required, by means of a rack 67 operated by the turning but-ton 68 in the known way.

The apparatus can. be easily carried by the handle 70; and has at the back end, a

- ter; and gearing means connecting the winding spindle with the developed and undoor D at its lower part, which can be tolded down, and opened and closed alternately, as desired, thus allowing access to the interior of the box or case.

What is claimed is 1. A kinematograph printing apparatus, comprising a closed box having an exposure aperture and light tight apertures for the passage or a developed film; a light tight chamber within the box for an undeveloped film; spindles within the chamber for car rying the undeveloped film; spindle outside the box for carrying the developed film; means within the box for moving together the films, comprising intermittently operated sprocket wheels, and continuously operated sprocket wheels which engage with the films before and after they are engaged with the intermittently operated sprocket wheels, gearing for driving the continuously operated sprocket wheels at the same speed, movable gates which permit the placing of the films in position, and means for regulating the size of the exposure aperture; and means outside the box engaging with the said spindles and moving means for moving together both films and unwinding and winding them on their respective spindles.

2. A kinematograph printing apparatus, comprising a closed camera box fitted with a door, and having a light tight chamber, and light tight apertures for the passage of the films, and an exposure aperture; means for closing the light tight apertures; remova-ble supports outside the box for carrying a developed film; supports inside the light name to this specification in the presence of two subscribing witnesses.

tight chamber for carrying an undeveloped film; removable means inside the camera box for intermittently moving the films together over the exposure aperture; operating means outside the camera box and con nected with the removable means for moving the films; and connecting means engaging with the removable means, and the said supports for the developed and undeveloped films, for driving all from the one operating means.

3. A kinematograph printing apparatus comprising a closed camera box fitted with a door, and having a light tight chamber, and light tight apertures for the passage of the films, and an exposure aperture; slidable means for closing the light tight apertures; removable spindles outside the camera box for carrying a developed film;removable spindles inside the chamber for carrying an undeveloped film; removable film moving mechanism inside the box; a winding means outside the box having a spindle which is detachably connected with the film moving mechanism for operating the latdeveloped film carrying spindles.

at. A kinematograph printing apparatus,

1 com-prising a camera box, having a grooved way, apertures in one of the side walls and light tight apertures in the upper and lower -walls for the passage of films, and fitted with a movable side door, a lens and means for focusing the same; slidable means for closing the light tight apertures; means for closing the apertures in the side wall; re- 3 movably mounted spindles on the outside of the box; removably mounted spindles in-' side the box one of such spindles projecting through one of the apertures in the side wall and having a pulley thereon; a removable film moving mechanism comprising a ,board fitted in the grooved way of the box, land carrying thereon continuously operated sprocket wheels, intermittently operated sprocket wheels disposed between the continuously operated sprocket wheels, gearing j connecting the continuously operated wheels, hinged gates for holding the films in posi- -tion, an adjustable apertured exposure part, a rotatable exposure shutter, a slidable shutvter for rendering a part of the box light tight, and gearing connecting the exposure shutter and the sprocket wheels together; a .winding handle having a spindle which ex- Itends through one of theapertures in the side wall and having a pulley thereon; and ibands for connecting the pulley on the driving spindle with the pulleys of the developed .and undeveloped film spindles.

In testimony whereof I have signed my GEORGE CHARLES THOMAS.

Witnesses:

SOMERVILLE GoonALL, YVILLIAM F. PARRY.

copies'of this patent may be obtainedfor five cents each, by addressing the Commissioner of Patents,

Washington, 1). C.

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