公开(公告)号：US3628748A

公开(公告)日：1971-12-21

申请号：US3628748D

申请日：1970-03-24

Applicant: EASTMAN KODAK CO

Inventor： EASTERLY DONALD O ,  STARK DANIEL J

IPC: G03B1/56 ,  G03B21/32 ,  G11B15/32 ,  G11B15/66

CPC classification number: G03B21/323 ,  G03B1/56

Abstract: A film-feeding mechanism for a self-threading cartridge loading motion picture projector or the like comprises a stripping finger engageable with a roll of film in a cartridge for deflecting the film from the cartridge for travel along an edge of the finger. A drivebelt is engageable with the roll adjacent to the finger for driving the roll in an unwinding direction during film-stripping operations. Means are provided for urging the film stripped from the roll into positive engagement with the finger along its guide surface to prevent twisting of the film as it is fed from the roll and thereby avoid film threading failures that might otherwise occur by an automatic film threading device of the projector being unable to accept twisted film delivered to such device by the film-feeding mechanism.

公开(公告)号：US3627229A

公开(公告)日：1971-12-14

申请号：US3627229D

申请日：1970-08-27

Applicant: EASTMAN KODAK CO

Inventor： WANGERIN ELMER O

IPC: G03B21/32 ,  G03B21/43 ,  G11B15/60 ,  G11B15/67 ,  G11B15/66 ,  B65H17/06

CPC classification number: G11B15/67 ,  G03B21/323 ,  G03B21/43 ,  G11B15/60

Abstract: The outermost convolution of a roll of strip material is transversely compressed by the opposed flanges of a reel on which such strip is wound. Upon rotation of the reel about the roll axis, a roller arm temporarily flexes successive opposed regions of the flanges away from each other as such regions are respectively rotated therepast. Such local flexing of the flanges releases corresponding successive portions of the outermost convolution of strip material on the reel from transverse compression and effects a separation and feeding of the leading strip end from the rotating roll.

公开(公告)号：US3617013A

公开(公告)日：1971-11-02

申请号：US3617013D

申请日：1969-06-27

Applicant: EASTMAN KODAK CO

Inventor： AINSLIE DIANNE B ,  CRAPSEY ARTHUR H

IPC: G03B21/32 ,  G11B23/10

CPC classification number: G03B21/323

Abstract: A cartridge has two separate parts with recesses therein jointly defining a chamber for a reel of film or other web material when the cartridge parts are assembled together. Cooperating latch structure on the cartridge parts includes at least one opening in a wide wall of one cartridge part which is adapted to receive a latch portion projecting from a wide wall of the other cartridge part. In assembling the cartridge the latch portion on the second cartridge part is deflected into the recess in the first cartridge part and then snaps into the latch opening in the first cartridge part. In a preferred embodiment of the invention two separate latch members project from a second wide wall of the second cartridge part and enter two spaced latch openings in a corresponding wide wall of the first cartridge part. Provision may be made for vertical stacking of horizontally positioned cartridges as well as for side-by-side positioning of the cartridges in adjacent vertical planes.

公开(公告)号：US3617012A

公开(公告)日：1971-11-02

申请号：US3617012D

申请日：1970-03-31

Applicant: EASTMAN KODAK CO

Inventor： STARK DANIEL J

IPC: G03B1/50 ,  G03B1/56 ,  G03B21/32 ,  G03B1/04 ,  G11B15/32

CPC classification number: G03B21/323 ,  G03B1/50 ,  G03B1/56

Abstract: A cartridge-loading motion picture projector has a film supply spindle mounted on an arm that is movable to each of a plurality of positions wherein the spindle is engageable with a core of a film reel positioned within a cartridge on the projector, and the arm and spindle are movable to at least one additional position wherein the spindle is adapted to support an unenclosed reel of film or the like. The projector comprises a film-feeding mechanism that is at least partially movable into each of several sizes of cartridges that may be mounted on the projector for engaging a roll of film within the cartridge and for feeding said film from the cartridge to automatic threading devices of the projector. An interlock mechanism is provided for blocking normal operation of the film-feeding mechanism when the spindle and arm supporting it are moved to the reel-supporting position.

公开(公告)号：US3614022A

公开(公告)日：1971-10-19

申请号：US3614022D

申请日：1968-02-19

Applicant: BELL & HOWELL CO

Inventor： HENRIKSEN ELMER C

IPC: G03B21/32 ,  G03B21/43 ,  G03B1/04 ,  G11B15/32 ,  G11B23/04

CPC classification number: G03B21/323 ,  G03B21/43

Abstract: A magazine having a plurality of adjoining reel compartments supplies film from successive reels in a film path for forward projection and receives film returned from the path during reverse projection and rewind following forward projection according to the condition of means for moving film between the magazine and a takeup member. During projector threading and rewind, the film path is enlarged and a shuttle for moving film intermittently during projection is prevented from film engagement. Sensing means at the film path condition the projector for (1) forward projection following threading, (2) rewinding following forward projection, and (3) terminating rewinding.

公开(公告)号：US3604657A

公开(公告)日：1971-09-14

申请号：US3604657D

申请日：1968-11-18

Applicant: FUJI PHOTO FILM CO LTD

Inventor： IGARASHI SHUNKICHI ,  OKANO TAKESHI

IPC: G03B1/56 ,  G03B21/32 ,  G11B15/66 ,  G11B23/10

CPC classification number: G03B21/323 ,  G03B1/56

Abstract: A pivotable, reciprocating plate having a hooked projection which enters a film magazine slot and is received within an aperture at the end of the film to forcibly withdraw the film end through an adjoining cartridge slot positioned in the path of the moving film strip end.

公开(公告)号：US3600070A

公开(公告)日：1971-08-17

申请号：US3600070D

申请日：1969-11-03

Applicant: POLAROID CORP

Inventor： DOWNEY ROGERS B

IPC: G03B21/32 ,  G03B23/02 ,  G03B21/44

CPC classification number: G03B21/323

Abstract: A motion picture system employing a cassette having a pair of coplanar spools to which the opposite ends of a strip of photographic material are connected. To facilitate reversible transport of the film strip between the aforementioned spools and across a film gate of the cassette, a spur gear is axially connected to each spool and positioned in one extremity of a specially configured recessed portion of the generally flat exterior surface of one cassette sidewall. Photographic apparatus adapted to receive such cassette and to alternately reversibly drive its spools includes a pair of coplanar fixedly positioned driving spur gears which respectively slide along the aforementioned recessed portions of the cassette into automatic engagement with the cassette''s spur gears as the cassette is inserted thereinto.

公开(公告)号：US3590771A

公开(公告)日：1971-07-06

申请号：US3590771D

申请日：1970-06-26

Applicant: BELL & HOWELL CO

Inventor： LUTSCH JAMES J

IPC: G03B21/32

CPC classification number: G03B21/323

Abstract: A cartridge adapted for mounting on a projector encloses a rotatably mounted reel on which film is wound. A light source, which is preferably mounted in the projector frame, registers with an opening in one edge of the cartridge to light the space within the cartridge between the peripheral surface of a portion of the film wound on tee reel and the adjacent walls of the cartridge. One face of the cartridge is provided with a radially disposed slot having its outer end adjacent the light source. A transparent or translucent indicator scale is mounted on one face of the cartridge in position to cover the slot so that the portion of the indicator scale extending radially beyond the outer perimeter of the film wound on the reel is illuminated by the light within the cartridge. An index covering part of the one face of the cartridge, but having an opening through which the indicator scale is exposed comprises parallel lines intersecting various indicia on said scale, whereby scene sequences identified by short descriptions entered on said lines are keyed directly to specific indicia on the scale.

公开(公告)号：US3559918A

公开(公告)日：1971-02-02

申请号：US3559918D

申请日：1968-09-26

Applicant: BRAUN CAMERA WERK

Inventor： BRAUN CARL

IPC: G03B21/32 ,  G03B21/50 ,  G03B1/04 ,  G11B15/32 ,  G11B23/04

CPC classification number: G03B21/323 ,  G03B21/50

Abstract: A boxlike film cartridge for use in projectors and having a tangentially arranged film exit opening. The cartridge is arranged to be carried on a pivoting door of the projector housing and carries a film clamping means which is arranged to clamp the film when the motor is automatically switched off by the end of the film passing through the picture gate at the end of rewind, in advance of cessation of rotation of the motor, so as to prevent the film being withdrawn entirely into the cartridge.

公开(公告)号：US3550767A

公开(公告)日：1970-12-29

申请号：US3550767D

申请日：1969-05-16

Applicant: SYNERGISTICS INC

Inventor： HALEWIJN HARRY J

IPC: G03B21/32 ,  B65D85/67

CPC classification number: G03B21/323