US1183705A

US1183705A - Film-winding device.

Info

Publication number: US1183705A
Application number: US4463415A
Authority: US
Inventors: David P Whitesell
Original assignee: CONRAD KIPP
Current assignee: C E BRADLEY; CONRAD KIPP
Priority date: 1915-08-09
Filing date: 1915-08-09
Publication date: 1916-05-16
Anticipated expiration: 1933-05-16

Description

.D. P. WHITESELL.

FILM WINDING DEVICE.

APPLICATION FILED AUG.9. 1915.

Patented May 16, 1916.

5 SHEETS-LSHEETI D. P. WHITESELL.

FILM W|ND|NG DEVICE} APPLICATION FILED AUG.9. 1915.

Patented May 16,1916.

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FILM WINDING DEVICE.

APPLICATIIEON FILED Aue.9. 1915.

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FEM-WINDING DEVICE.

To all whom it may concern:

Be it known that 1, DAVID P. WHITESELL, a citizen of the United States, residing at Greenville, in the county of Darke and State of Ohio, have invented certain new and useful Improvements in Film-Winding Devices, of which the following is a specification.

This invention relates to a device for winding a film or the like in position for unwinding the forward end first, and particularly to a device which may be associated with a projecting apparatus for re ceiving and winding the film just as it passes the projector.

The invention resides in certain novel apparatus for accomplishing the purpose stated, the novel principles as well as the structural and cooperative features of which will be pointed out throughmeans of a preferred embodiment selected for purposes of illustration; also in certain details of construction of the said preferred embodiment of such apparatus, all as hereinafter fully described and particularly pointed out in the claims.

' In the accompanying drawings :Figure 1 is a side elevation of a projecting apparatus showing the application of the invention; Fig. 2 is an enlarged detail view of the clip for securing the front end of the film to the flange on the receiving pan; Fig. 3 is an enlarged top plan view of the reel hub; Fig. 4 is a top plan view of the device; Fig. 5 is aside elevation of the device partly in section; Fig. 6 is a side elevation of the device, partly in section, looking on the other side from that shown in Fig. 5; Fig.

7 is a bottom plan view; Fig. 8 is an enlarged side elevation partly in section; Fig. 9 is a top plan view of the reel partly broken away and showing the film as wound thereon; and Fig. 10 is a side elevation of the reel with the film removed.

Referring to the drawings in detail, A represents the projecting apparatus which is preferably of conventional design, and B represents the film feeding means, which in the present case, is a reel supported above the apparatus in-position to permit the film to feed past the projector C. As shown in% Fig. 1, the invention is preferably constructed to be directly associated with the receiving magazine D of the apparatus; however,

it is to be understood that it may be used Serial No. 14,634.

in any other suitable manner which insures the desired results.

In carrying out the invention, according to the preferred form selected for illustration, the device embodies a base 1 on which are mounted a pair of columns 2 for supportlng the main frame 3, which is hinged on one of the columns 2 and adapted to be secured to the other column by means of the eye bolt 4.- engaging a suitable recess on the frame and the wing nut 5 adapted for screw-threading on the eye bolt. The frame 3 carries the entire mechanism of the device with the exception of the receiving pan 6, which is centered and supported on the base 1 by a spindle 7 having a supporting flange 8.

The mechanism for receiving, guiding,

feeding and winding the film is adapted to overlie and extend partly within the hollow winding form or pan 6 as shown, and to coact with the pan to develop rotation thereof and wind the film in inwardly building layers within it.

To support the pan with freedom of rotation, a spindle 7 has a pan supporting flange .8 and in turn rests upon a flange 9 of the spindle bearing 10, through means of the ball bearing 11.

To feed the film and rotate the hollow winding form, a driving shaft 12 supported in frame 3, coaxialwith the pan spindle 7, is driven through a sprocket 12 from some suitable source that develops rotation in thedriving shaft, preferably in definite relation to the feed of the film past the pro- .means of chain 16, and being mounted through means of compensatlng lever 17 having an arm 18 connected by spring 19 with the cross arm 20 upon said guide rods 13, and upon which said lever is fulcrumed; and a cross head 21 being mounted upon said guide rods 13 to slide radially to the winding form and carrying a drive roll 22, preferably of rubber or other suitable frictional material, whose shaft 23 is provided with a sprocket wheel 24 meshing with an intermediate portion of the chain drive belt 16. The travel of chain 16 not only rotates driving roll 22 in the direction to rotate the hollow winding form, but draws the driving roll radially outward and keeps it in driving contact, yet permits it to yield as the film builds up. Changes in slack in the belt 16 resulting from radial adjustment of the sprocket 24 are compensated for by the lever 17, already described.

The film is brought in as best illustrated in Figs. 4 and 5, first around a post 25' by which it is deflected not only circumferentially but laterally to the previous plane of travel, the post being made conical for this purpose and being provided with bearing surfaces which receive the edge portions of the film, and with a recess intermediate of said bearing surfaces to reduce the friction; and the film passes thence to a second post 26, likewise conical, to develop further lateral deflection and bring it into the plane of thewinding form and likewise intermediately recessed to reduce friction. After reaching the plane of the winding form, the film encounters a feeding sprocket 27'on the driving shaft 12 which forwards it at a positively controlled rate, over a guide shoe 28 by which the film is directed with some fullness to the control of the driving roll 22. 29 represents a roll coacting with the film feeding sprocket and 30 its mounting lever whose arm 31 is connected by spring 32 with a post 32. 33 represent preliminary guides, between which the film is preferably passed in advance of the first cone guide 25. 34 is a clip for securing the front end of the film upon the outer cylindrical wall of the winding form.

From the foregoing, it will be seen that the film is received directly from the projector, passed by lateral as well as circumferential deflecting guides into the center of the winding form, thence outwardly to the winding space radially remote from said center where it is encountered by a driving roll that acts through the film upon the winding form and in the direction to maintain sufficient fullness. of the film to arch outwardly against the, surface which sustains it; this driving roll yielding radially inward as the film la'yers build up, andvalways acting directly upon the innermost layer and indirectly through friction of each layer upon the antecedent layers to expand the roll outward, so that a solid and compact roll is produced with the end of the film first issuing from the projector presented outwardly for immediate unwinding.

After the film has been wound, the several parts of the mechanism will assume positions as shown in Fig. 7, and in order that the film may be bodily transferred for reshowing, a radially resilient reel 35 isprovided. This reel comprises a hub 36 having mounted thereon the volute springs 37, each connected at one end with the hub and having its other end free. The reel is further provided with removable face plates 38 which are adapted to be attached to and detached from the hub 36 by the clips 39. For transferring the wound pack of .film from the receiving pan to the reel, the reel is made interchangeable with the winding mechanism which is removed from the pan by means of the swinging frame 3. One of the face plates 38 being removed from the hub of the reel, the reel is inserted in the center of the film pack, and when the spring arms have firmly adapted themselves to the hub, the clip 34 is removed from the flange of the receiving pan. The film is then removed from the receiving pan, the detached face plate of the reel is replaced, and the film is ready for reshowing, without rewinding.

The details of construction set forth in the accompanying drawings and fully described in the above description are selected for purposes of illustration, and while, in themselves, embracing some of the minor features of the invention, they are not to be taken as limiting the scope thereof.

I claim 1. In a film winding device, the combination of a hollow form, means for presenting film in position to be wound into successive inwardly building layers in said form, a

driving roll acting upon the successive film layers to rotate said form, a mounting which permits said roll to move radially inward as the film builds up, a chain and sprocket drive acting upon said roll in the direction to draw it against the film, a driving sprocket for the chain, and a resilient mounting for an idler sprocket which compensates for changes in the length of the chain belt as the winding roll travels radially to the winding form.

2. In a film winding device, the combination of a hollow form, means for presenting film in position to be wound into successive inwardly building layers in said form, a driving roll acting upon the successive film layers to rotate said form, a mounting which permits said roll to move radially inward as the film builds up, a chain and sprocket drive acting upon said roll in the direction to draw it against the film, a driving sprocket for the chain, and a resilient mounting for an. idler sprocket which compensates for changes in the length of the chain belt as the winding roll travels radially to the winding form; said driving sprocket being in direct connection with a film feeding means which is adapted to keep an excess of film between said feeding means and said film presenting means.

3. In a film winding device, a rotatablefilm receiving receptacle mounted for rotation upon a suitable base, a frame member positioned diametrically across said receptacle, pivoted at one end to said base and removably secured at the other end to said base, support film feeding and guiding means, said frame member being adapted to support said frame member being also adapted to film feeding and guiding means. support for radial movement, relative to said 4. In a film Winding device, a rotatable receiving receptacle, a cross head; said cross 5 film receiving receptacle mounted for rotahead being adapted to carry film feeding and 15 tion upon a suitable base, a frame member receptacle rotating means. positioned diametrically across said recep- The foregoing specification signed at tacle, pivoted at one end to said base and re- Greenville, Ohio, this 19th day of July, 1915. movably secured at the other end to said 1 base, said frame member being adapted to DAVID P. \VHITESELL.