US1225184A - Self-threading device for motion-picture apparatus. - Google Patents

Description

M. SEG'EL.

SELF THREADING DEVICE FOR MOTION PICTURE APPARATUS.

APPLICATION FILED JAN-14.1914.

c, C@ u 15)@@59 3.@50

an eras aan@ @GEO MCHAEL SEGEL, 01E' NEW YORK, N. Y., LtSSIGx-Bl'olt T0 ELIZABETH MEHLFELDER UEBIIELll/IESSER, OF BYSIDE, NEW YORK.

SELF-THREADING- DEVICE FOR MOTION-PICTURE APPRATUS.

Patented May 8, 11917.

Application led January 14, 1914. Serial ,170. 312,055.

To all whom it 'may concern.-

Be it known-that l, MICHAEL SEGEL, a citizen of the United States, residing at New York city, county and State of New York, have invented certain new and useful llmprovements in Self-Threading lDevices for Motion -Picture Apparatus, of which the `followingis a clear, full, and exact description.

This invention relates to that general class of self threading machine referred to in my application Serial No. 7 7 4,304, filed June 18th, 1913, and has for its object to provide means between the feeding sprocket and the reel to be exhibited to cause the ilm upon the`v mere rotationof its reel tobe delivered to the sprocket wheel or other advancing device 'to thread it by means-of the threading mechanism through the exhibiting portion of the machine, and also to cause the automatic delivery of the Hlm after exhibition on to the receiving reel, where it will be grasped and wound. up without any other action on the part of the operator, excepting placing an empty reel inplace and placing the reel to be exhibited in place in the ma-A chine, and operating the driving mechanism.

` into Contact with In order to accomplish these eaturesll supply preferably a spring control pivoted. guide boot or chute, which extends from the first sprocket roller, the upper ends of the wmouth and itting nicely between the two flanges of the reel, so that the free end of the il'm as the reel is rotated will enter the chute, pass Vdown the chute and be guided withiits perorations lthe teeth' ofthe sprocket 3 roller, and by them forwarded through the machine, making the proper loops as referred to in my aforesaidv application for patent, and after exhibition be delivered by`V preferably a sprocket roller to a second downwardly depending chute or boot, which has its end in proximity to the shaft of the receiving reel, being mounted between the anges ofl he reel and havingvcut-out portions at the lower end of the boot, permitting the free rotation of the ilmv clamps which will be referred to hereinafter, which orifice plate, advancing sprocket and a portion of the loop receptacles, the section being taken on a line 2-2 in Fig. 1.

Fig. V3 is a detail view of the lower or take-up roll and film guide adjacent thereto.

. As herein illustrated a motion picture machine casing is indicated by the numeral 1 and is provided with the usual aperture 2 and orificeplate 3 adjacent thereto.

ln the upper` part of the device l mount the 4filled reel 4 in the usual manner, and in the lower part the take-up reel 5; to take the lm from the upper reel, pass it down- Wardly across or between the openings 2 and 6 on to the take-up reel automatically is the Aobject of the device, the said operation being accomplished as follows v To thread the device, the upper reel 4 is unwo-und until the film engages the sprocket 7,V the film passing through the guide chute 8, which is pivotally mounted onv the shaft 9 of the sprocket 7. p p A continued rotation of the reel 4 forces the lm through the curved channel 10 between-the apertures 2 and 6 thence through the channel 11 into the ilm passes into the guide chute 13, thence to the take-up reel 14. During its course the lm` will engage the intermittent.

rlhe mechanism indicated by 17 is a diathe loox 12 from which vgrarnmatic illustration of the operatingA mechanism for the device. Like the chute 8, the chute 13 is pivotally mounted on the shaft 18 and is adapted to swing upwardly as the roll o film on the take-up reel increases in size (see dotted lines 19, Fig. 1). To automatically engage the take-up reel E provide clips or devices to grasp Athe end of the reel, such devices being herein indicated by 20 and consist of resilient fingers mounted on the shaft 18. When the free end of the film reaches the shaft 18 it will Slide into the gap 2l and become pinched by the resilient fingers; at this time all of the running parts will be running at the same speed, hence the film will be carried around by the rotating shaft 18. The guide 8 will move inwardly, as the roll of film on the upper reel decreases in diameter, by virtue of lthe pull of the spring 21 (see dotted lines 8).

The chute 13 rests by gravity upon the rollv of film on the take-up reel.

Adjacent the sprockets 15 and 16 I locate guides 22 and 23 to guide the film into and out of the boX 12. By virtue of the arrangement of the chutes 8 and 13, they will always remain in proper relationship with respect to the reels 4; and 14E.

- Although mere manual` rotation of the full reel is sufficient to cause the end of the film to enter the upper end offthe guiding chute, I prefer to mount' a'slight friction drive on the shaft of the upper reel and connect it by chain or other means with the mechanism of the machine to cause it to start at slow speed in order that the end of the film maybe made to enter the chute. After the film is taken up by the chute the major part of the drive on the upper reel is accomplished by the tooth sprocket wheel,

which rotates the reel much faster by its mere pull than initial starting driving mechanism.

I claim as my invention:

l. .In combination with a film mechanism of a motion picture apparatus, a roll of film, a support therefor, a guide for the film mounted in close proximity to advancing the outer surface of the roll of filln where by on the rotation of the film roll the free end of the film is caused to enter said guide and directed'by said guide to the feeding mechanism in the motion picture apparatus.

2. The combination of a roll of film and a feed sprocket, a supporting frame for the same, a film guiding device interposed between the roll of film and the feed sprocket for the purpose of guiding and directing the free end of the film into said guide and from the delivery reel on to the feed sprocket in a motion picture apparatus automatically.

3. The combination of a driven film reel and a sprocket mounted in a film manipulating apparatus, and a guide mounted between the roll of film and a feed sprocket to catch the film for automatic delivery to the feed sprocket.

4. The combination of a roll of film, a feed sprocket, a guide mounted between the roll of film and the feed sprocket for the purpose of receiving and delivering a film from the feed sprocket to a film receiving roll after the film has passed through the 6. In a motion picture apparatus, a lower feed sprocket and a receiving reel, a guide for the film interposed between said sprocket and said receiving reel to deliver the free end of a film into said reel, and an arrangement on the hub of said reel to grasp the .free end of a film for the purpose of winding it on a hub automatically and during rotation of said reel.

7. In a motion picture apparatus, a fric-l tionally driven delivery reel, a feed sprocket,

a swingable guide chute between said delivery reel and said feed sprocket to receive a4 film for automatic delivery to said feed sprocket substantially as described.

8; In a motion picture apparatus, a lower feed sprocketNand a receiving reel, a swingable guide chute interposed between the hub of the receiving reel and said feed sprocket, a device on`said reel hub to cooperate with the filml guide to automatically catch the film on said reel hub substantially as set forth.

9. In a motion picture apparatus, a roll of film, a feed sprocket, a guide interposed between said roll of film and said feed sprocket and an automatic film catch on the hub of the film roll to automatically deliver a film from one on'to the other by the mere rotation of said feed sprocket and said film roll.

10. In a motion picture apparatus, a lower feed sprocket1 a receiving reel, a lm clasping means on the hub of said reel, a guide chute interposed between said feed sprocket and said reel to automatically deliver a free end' of film from said feed sprocket to the clasping device on the hub of said film winding reel.

l1. A motion picture apparatus consisting of at least two feed Sprockets and two film reels, guides interposed or located between said feed sprockets and said film rolls to automatically catch the free end of a lm and deliver it from one to the other upon the mere rotation of said feed sprockets land film rolls.

12. In a film manipulating apparatus or the like, a film reel thereon, a feed sprocket adjacent thereto, a device mounted between said reel and said sprocket, consisting of Signed at New York city, New York, this' guides for the film between said delivery 10th day of January, 1914:.

member and said receiving member a pro- Y* jection 0r catch on the receiving meinber to MMEHA'EL SEGEL' engage the approaching free end of a film in presence ofupon and during operation of the apparatus F. WARREN WRIGHT, substantially as Idescribed. MABEL DITTENHOEFER.

Images