US1285375A - Reverse-winder for films. - Google Patents

Description

' P. J. PROKOP.

REVERSE WINDER FORHLMS.

' APPLICATION FILED APR.20.1918.

. Patented No v. 19, 1918-.

2 SHEETS-SHEET 1.

lNl/E/l/TOR. Prokap J, Prakap A TTOR/VEYS P. J. PROKOP. REVERSE WINDER FOR FILMS; APPLICATION FILEti APR. 20. 1918..

Patented Nov. 19, 1918.

2 S'HEETSVSHEET 2.

"I F T fllw' I ,i 2/ iiiii I I I 26 WITNESSES 5 -uvmvr0n J v 25 l Uk-OPkJP/O}op I '7' v BY 1}; ATTORNEYS reference characters designate the same parts "raoxor a, PnoKononnEw-xonx, N. Y.

nnvEnsE-wmpnia EOR Firms.

To all whom it may concern. Be it known that I, PROKOP J. PROKOP, a subject of the Kingof Bohemia, but having renounced such allegiance and declared my intention to become acitizen of the United States, and a resident of the city of New- Yorkyborough. of Manhattan, in the county of New York and State of New York, have invented a new and-Improved Reverse- Winder for Films, of which the following is a full, clear, and exact description.

This'invention relates to moving picture apparatus or otherdevices in which there is a film or the like to be wound and rewound,

and constitutes an improvement upon the I kinetoscope film magazine covered by Letters Patent of the United States,'No. 1,188,990, issued to me on the 27th day-of June, 191.6.

Among the objects of the invention is to provide a winding apparatus in the nature. of a receiver into which the film from a pro-' 'jecting apparatus is conveyed and wound in such a manner that the advancing or first 1 picture end of the film will lie on the outside of the roll ready to be delivered immediately through the projecting apparatus for a subsequent run. of the picture without rewinding as. is the usual practice.

'Another'object of theinvention is to provide a device of the character indicated having improved tension facilities to con .rol the speed of rotation of the winding devicesp A further object of theinvention is to provideanimproved means for attaching the leading end of the film to initiate the delivery'thereof into-the rewinder casing.

With the foregoing; and other objects in view the invention consists in the arrangement and combinationof parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein,

still for thepurpose of illustrating a practical embodiment thereof reference is bad to the accompanying drawings, 1n whichllke inv the several views, and in which-;

Figural-is a vertical sectional view. of the casing "showing the principal parts'of the winding devices in side elevation.

Fi 2 is'a-horizontal section of'the casing on t 'e line 2-2 of Fig. 1, indicating the princip'alparts of the winding devices in plan view.

specification of semi-armat- Patented Nov. as, 1918.

Application filed Ami 120, 1913; Serial no. 229,790.

Fig. 3 is a vertical sectional'view on the l 1ne 33 of Fig. 1; and

Fig; 41s a detail plan View of the attach- }ment means for the leading end of the film.

Referring now more particularly to the draW1'ngs,-I show at 10 a stationary casing of any suitable construction or design and having a removable side portion llto give ready access to the lnterior thereof or to remove the roll'of film'therefrom. This casing 1s provlded with an inlet slot or opening 12 at its top through which the film 13 is, delivered between any suitable anti-friction rollers 14, as fromthe moving picture proectingapparatus. (not shown). The. rear portion of the casing is provided with a hollow hub 15 at its center in which is journaled 'the sleeve 16 to the inner end-of which within the casing is secured a rotary film carrier shown in the form of a disk 17 adapted to be rotated by any suitable means acting through the sleeve 16 from a source'of power not in-' dicated but understood to be operated at a proper axial speed to conform to the speed ing machine. v

The'length of the hub 19 approximates twice the width of the film 13 and corre- 'sponds substantially tothe width or depth of the casing. v

Secured to the hub 19"and supported therebyin stationar 'yl position are two sets of spokes or'ai ms 21" and22 arranged in pairs. The-huh' ltl i-is fixed; upon a spindle 20 held stationary centering member 18. The

arms 21 aresli'ewnas formed of flat metal and all lyinglin' the same plane adjacent to the disk or-;carrier.17.- IThese arms are all of movement of the film within the projectshown as arranged radially iwithrespect to the axis of the entire device and equally spaced circumferentially. The arms 22, however,instead of being arranged in the same plane extend-outward from the front half of the hub 19: in a spiral series. In

. other words the first arm 22' of the series extends radially from the front end of the-hub 19 as, shown at the lower portion of Fig. 2, the next arm extends similarly from the hub but from a point slightly nearer to the center of the ca'smg and so onaround' to the last arm 22 of the series which is indicated at the "center'of Fig. 2 at or near the center of the length of the hub.-- It will be noted that for each-of the arms 21 there is an arm 22 parallel thereto, but because of the spiral arrangement of the arms 22 the pairs of arms 21 and 22 are variously spaced.

For each pair of arms just described there are slides 23 and 24 respectively, the same being movable radially inward and outward toward and from the hub 19, the spindle 25 extending between and having its ends secured in the two slides 23 and 24. The front end of each Spindle projects through a slot 26 formed in the rear wall of an arm 22, and to this inwardly projectingend of the spindle 25 is secured a flexible member such a cord or chain 27. Upon each of the spindles 25 are freely journaled a seriesof rollers 2S and 29 the latter constituting spacers between pairs of rollers 28. the right side of Fig. 2 and the lower portion of Fig. 3 a portion of the spindles 25 constituting the longer spindles or those spanning the wider spaces between pairs of arms and over which the film is first drawn, are provided with additional rollers 28 of gradually increasing diameter beginning with the first arm 22 as will be best noted from Fig. 3.

Between each arm 21 and the next of the same series are arranged articulated link members 30 and likewise between each arm 22 and the next are arranged links 31. Certain of these links are pivoted upon the spindles 25 and 25 and the other ends of the same links are simply pivoted at 32 to' other links of the sameseries. It will be noted that certain of the links are provided with stop means such as pins 30 whereby the outward movement of the spindles and rollers between adjacent pairs of arms is limited; Dotted lines in Fi 1 indicate. how these several links are adapted to collapse so as'to reduce the effective diameter of the entire system of rollers. while the slides move inward radially along the pairs of arms.

The inner face. of each arm 22 lies in a plane corresponding to the general spirality of the series of arms 22 or in other words lies in a plane at an oblique angle to the axis of the hub 19. This fact is clearest. shown in Fig. 4. I

The inlet slot or opening 12 of the casing is arrangednear the front side thereof whereby the film entering the casing is guided along one side of the main or previ ously admitted portion of the film and toward the center thereof instead of rolling it upon the outside of the roll. The rotatable disk 17 carries a holder indicated as a whole at 33 for the advancing end of the film. This holder comprises a pair of stationary members 34 and 35 spaced from each other to form a diagonal slot 36 for a slide 37. See Fig. 4. The'slide is provided with,

a transverse slot. 37 through which the end 13 ofthe film is projected outwardly and hooked over a pin 38 carried by the slide 37. A keeper 39 is pivoted at 40 upon the outer As indicated in.

face of the slide 37 and is swung around so as to lie over the end of the film adjacent to the pin 38 whereby the end is held from slipping ofi of the pin. The slide 37 is adapted to move rearward and inward along the diagonal slot 36 due to the combined effect of the slight. pull of the film thereon, but more particularly because of the outermost point or corner 37 thereof wiping against the oblique inner faces of the slides 24 while the disk 17 and film holder carried thereby are making the first half rotation.

In other words with the film attachedas within the first end or coil thereof, the film being directed as above described toward the center of the roll from the side of the roll and through the slot or mouth 12 of the casing. Since the depth or thickness of the roll increases inward toward the center of the hub as indicated in Fig. .1 the rollers 28' bearing against the inner face thereof will be forced inward along the arms 21 and '22 toward the position shown in Fig. 1 in dotted lines. This movement of the rollers 28 and the spindles 25 upon which they are journaled causes the flexible members 27 to roll over rollers or wheels '41 journaled in the outer ends of the hollow arms 22. The inner ends of each flexible connection 27 are guided over a roller 43 near the inner end of each arm 22 and after crossing each other are connected on opposite sides of a drum 44 journaled for relatively free rotation within the'hollow hub 19. Hence while one end of each connection tends to rotate the drum 44.. such rotation causes the winding thereof of the other end of the same connection. The front end of the drum is shown provided with a 45 with which there meshes a. pinion -46 projecting throu h the stationary hollow hub 19 and with which an adjustable screw 47 cooperates to vary the tension upon the pinion 46 and whereby the speed or rotation of the drum 44 may be regulated.

After the film is rolled as just described Within the casing and with its last picture end guided into the-interior of the roll the casing will be opened and the roil removed therefrom ready for a subsequent projection without rewinding. The handling of an open roll of film is inadvisable. Hence lf intend to remove t film from the while supported upon the rollers the separaable fromthe centering member 18. To return-the several spindles 25 and the slides 23 and 24 and rollers associated therewith outward to the ends of the arms again a key 48 or its equivalent is inserted "into the front end -of the drum 4A andwhen the drum is thusgiven a few rotations the flexible connections 27 acting in the opposite direction from that in which they are wound upon the drum will carry. the rollers and slides out- Ward. 4 i

I claim: y

1. In a stationary reverse film winder, the combination of a casing having an inlet slot adjacent to the front portion thereof, a film carrier journaled for rotation within and adjacent to the rear portion of the casing, means to attach thefirst picture end of the 'film to the carrier, a curved-series of antifriction guiding means to receive the film entering the slot and causing the same to be rolled within the previously admitted portion of the film adjacent to the disk, and

non-rotary supports for the guiding means.

'2. In a reverse film winder, the combination of a series of radially disposed arms lying in the same plane, a series of spirally arranged arms parallel respectively to the aforesaid arms, means to hold the pairs of arms stationary, anti-friction guiding means,

means to support the antifriction guiding means for radial sliding movement along the several pairs of arms, and means to carry the advancing end of the film around and over the anti-friction means whereby the succeeding portions of the film are guided and rolled Within the previously wound portion thereof I I 3. In a reverse film winder, the combination of a stationary hub, pairs of radial arms secured thereto, the arms of each pair being parallel to each other but having different spaces between them, a pair of slides mov- Table radially inward and outward along each pair of arms, a plurality of anti-friction devices carried by each pair of slides, a carrier for the incoming portion of the film whereby said portion is caused to be carried and rolled within the previously wound portion thereof over said anti-friction devices, and means cooperating with said slides to control the rate of movement th'ereof along the arms. 4. In a reverse film winder, the combination of a stationary support, a hollow hub secured thereto, radially arranged pairs of parallel arms fixed to the hollow hub, the distance between certain of the arms being different from that of other arms, anti-friction guiding meanssupported to slide radially along the severalpai-rs of arms, a carrier for the film whereby the incoming portion of the film is caused to move and roll within the previously wound portion thereof over said guiding means, and means acting -within said hollow hub to control the radial movementofsaid slides and guiding means along the arms.

5.'In a reverse film winder, the combination of a rotatable carrier, laterally projecting rigid means secured thereto constituting a guide, and a holder for the first picture end of a film movable along said guide, said holder having means to lock thereto the end of the film.

-6. In a reverse'film winder, the combination of a rotatable carrier having laterally projecting parallelrigid members forming a guideway, a slide movable along said guideway toward the carrier, and means to lock the first picture end of a film to said slide.

7. In a reverse film winder, the combination of a rotatable disk, means projecting laterally therefrom forming a diagonal guideway, a slide mounted in said guideway, means to lock the first picture end of a film to the slide, and stationary guiding means cooperatingdirectly with said slide to cause the movement thereof toward the plane of the disk.

PROKOP J. PBOKOP.

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