With Edge Guide Patents (Class 352/224)
  • Patent number: 7828442
    Abstract: A film-feeding mechanism is provided having at least one conveying claw for intermittently transporting a motion picture film that is provided with perforations which extend parallel to the lateral edges thereof. Said film-feeding mechanism further includes at least one locking claw whose tips engage into a perforation in order to ensure picture steadiness, and a film-guiding device that aligns the motion picture film. Lateral film-guiding elements of the film-guiding device are disposed so as to be at least partly movable relative to the lateral edges of the motion picture film.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: November 9, 2010
    Assignee: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
    Inventor: Walter Trauninger
  • Patent number: 6997557
    Abstract: A film trap and gate assembly for use in a motion picture projector is described. The film trap includes an image aperture and a first and second trap rail assembly. The film trap further includes a stripper plate having an angled stripper blade attached to an attachment flange. The stripper blade is attached to the attachment flange at an at least one degree angle, preferably biased towards the trap body. The film gate includes a projection aperture and a first and second gate rail assembly. A film tensioning assembly is attached to the gate body, the film tensioning device having a deformable body disposing at least two tensioning rollers, and an adjustable tensioning device. When assembled, the film trap and gate assembly forms a film movement channel to guide the film past an illumination source, while reducing the contact between the film strip and the film trap and gate assembly.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: February 14, 2006
    Assignee: Disney Enterprises, Inc.
    Inventor: Donald Quiroz
  • Patent number: 6742896
    Abstract: A film trap and gate assembly for use on a motion picture projector. The film trap includes an image aperture and a first and second trap rail assembly. The film trap further includes a stripper plate having an angled stripper blade attached to an attachment flange. The stripper blade is attached to the attachment flange at an at least one degree angle, preferably biased towards the trap body. The film gate includes a projection aperture and a first and second gate rail assembly. A film tensioning assembly is attached to the gate body, the film tensioning device having a deformable body disposing at least two tensioning rollers, and an adjustable tensioning device. When assembled, the film trap and gate assembly forms a film movement channel to guide the film past an illumination source, while reducing the contact between the film strip and the film trap and gate assembly. Consequently, the number of showing of a motion picture film is substantially increased.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: June 1, 2004
    Assignee: Disney Enterprises, Inc.
    Inventor: Donald Quiroz
  • Patent number: 6457827
    Abstract: A film guide for a movie camera 1 with a distance window 5 positioned in the shooting path of rays 3 of the movie camera 1, whereby this distance window 5 has a picture gate 52 and a platen 7a, between which the movie film 6 is moved. At least the upper surface of the platen 7a facing the movie film 6 is formed in a ray-absorbing or non-reflecting way.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: October 1, 2002
    Assignee: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
    Inventors: Claus Groaser, Thomas Popp
  • Patent number: 6354706
    Abstract: A rotary gate for digitally scanning frames of a motion picture film has a motor drive wheel and a coaxially spaced free wheel which support and engage sprocket holes in the film. The free wheel has no connection to the driven wheel other than the film which rotates the free wheel as it is driven by the drive wheel for advancing the film through the gate. A light source and sensor are provided on opposite sides of the film for illuminating the film and digitally scanning motion picture frames. Sprockets on the drive wheel are profiled to stabilize the film laterally while it is advanced for scanning of each frame. A fixed disc with a smooth track my be substituted for the free wheel for supporting the film.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: March 12, 2002
    Assignee: Editing Concepts, Inc.
    Inventors: David Kuttner, Charles Kouzoujian
  • Patent number: 5734171
    Abstract: A telecine scanner includes a device for determining and automatically correcting vertical and horizontal picture steadiness errors (film weave correction) during continuous-motion film drive scanning. To perform an optimum film weave correction, correction signals are derived from photosensors (11 and 13) arranged in the area of the film gate and scanning the sprocket holes during the entire scanning period of each film frame. The photosensor (11) provided for vertical correction includes a plurality of photoelements arranged transversely to the film drive direction and substantially corresponding to the number of television lines per film frame. The photosensor (13) provided for horizontal correction includes a plurality of photoelement sectors (14 to 21) arranged along the film edge, the photoelement sectors being smaller than a sprocket hole.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: March 31, 1998
    Assignee: U.S. Philips Corporation
    Inventor: Karsten Witte
  • Patent number: 5519442
    Abstract: This is a film image input system wherein an image of the developed still photo film is made to focus on an image sensing plane of a charge coupled device through a taking lens to be converted into electric signals and the electric signals are input in a video monitor. The film image input system comprises: a zoom driving part for changing the image magnification of the taking lens; a scan mechanism for moving an image taking positionon the film by the taking lens; and a control part for controlling the scan mechanism in such a manner that the moving speed of the scan mechanism is decreased with the increase in the image magnification of the taking lens and making the moving speed of a screen on the video monitor constant during scan.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: May 21, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katuo Asami, Hitoshi Yozawa
  • Patent number: 5266979
    Abstract: An improved film gate for a continuous motion or real-time motion picture telecine. A housing supports and transports a film in continuous motion past a frame aperture. A precision milled entry guide roller receives the film from a feed spool, edge-stabilizes the film, and directs the film to a precision milled first entry sprocket. The entry sprocket is positioned prior to the frame aperture, pin registers the film, and directs the film across the frame aperture. A precision milled exit sprocket positioned subsequent to the frame aperture receives the film after it passes across the frame aperture and pin registers the film. A precision milled exit guide roller receives the film from the exit sprocket, edge stabilizes the film, and guides the film to a drive capstan and take up reel. The precision sprockets and rollers serve as film stabilizing means. A floating guide means positioned at the frame aperture provides additional edge stabilization of the film as it is guided past the frame aperture.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: November 30, 1993
    Assignee: Steadi-Film Corporation
    Inventors: Brian K. Brown, Walter K. Chambliss
  • Patent number: 5184158
    Abstract: Gate for motion picture cameras, through which a motion picture film is moved by means of a film transport mechanism. A device (30, 31, 32, 33) serves to receive a frame-type film format mask (4) whose frame window (40) is smaller than frame window (20).
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: February 2, 1993
    Assignee: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
    Inventor: Claus Grosser
  • Patent number: 5088813
    Abstract: A film scanner is disclosed which comprises a dynamic film gate. The gate includes a pair of rollers for supporting the film at an imaging station and a pair of drive belts which clamp the film against the rollers. The belts are driven to advance the film through the imaging station. An integrating cylinder located above the film gate produces a line of light on the film, and light transmitted through the film in imaged onto a linear CCD image sensor. In order to insure that the end of the film is held flat at the imaging station, movable guides are provided to selectively engage the film adjacent the line of light on the film.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: February 18, 1992
    Assignee: Eastman Kodak Company
    Inventor: Edward H. Wakefield
  • Patent number: 5073022
    Abstract: The disclosed invention provides a means for controlling film flatness at r interfaces in the aperture where the film is used as an imaging medium between film holder plates, such as aperture plates. The film is held flat by lateral tension applied outward in all directions from the center portion of the area of the film being viewed by rubberized type O-rings in grooves on each of the aperture plates being clamped against the film by various clamping direct transverse pressure means. The lateral tension is caused by the stretch of the O-ring outward from the center of the aperture by the shape of grooves in the plates constraining any inward movement but providing bias movement of the O-rings outward.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: December 17, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Helmut H. Pistor, James C. Brown
  • Patent number: 4685790
    Abstract: In a camera provided with an openable and closable back lid, and a film easy load device for automatically taking up around a take-up spool a film leader portion drawn out of a film cartridge loaded into a film supply chamber, the film leader portion being formed by partially cutting away one side edge of the film, a film guide device comprises a pair of guide rails including a first rail in contact with the one side edge of the film and a second rail in contact with the other side edge of the film, the guide rails extending in the film feeding direction and forming a film passage channel therebetween, film departure preventing means projected from the substantially central position of the first rail toward the back lid and preventing the one side edge of the film in a state in which the leader portion is in contact with the take-up spool from departing outwardly from the passage channel, and a film pressure plate having an escape portion at a location corresponding to the film departure preventing means and
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: August 11, 1987
    Assignee: Nippon Kogaku K. K.
    Inventor: Kimio Uematsu
  • Patent number: 4659199
    Abstract: Apparatus for marking the edge of a film particularly for identifying head and tail sections of film strips joined by a splice comprising a holder with a channel-like film guide in which the film may be inserted for longitudinal movement and a hole for a pen-type applicator positioned so that as the film is moved lengthwise through the guide one edge of the film is wiped across the tip of the applicator so that a continuous ink or dye mark is applied to the film edge which appears as a ring on the side of the film when it is wound onto a reel.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: April 21, 1987
    Inventors: Richard J. Jarvis, Stephen A. Jarvis
  • Patent number: 4655566
    Abstract: A film transport mechanism including an aperture assembly through which the film is advanced, the aperture assembly defining a film path of a waveform longer or equal to the fundamental modal waveform of the film. The film path may include bristle like strips for damping film waveforms higher than the first mode.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: April 7, 1987
    Inventor: Ernst Heiniger
  • Patent number: 4324488
    Abstract: A paper mask produces even width borders on bordered photographic prints even if the unexposed photographic print paper is misaligned, angularly mistracking, or wandering in alignment through roll feeding, or if the width of the paper varies. The paper mask apparatus includes a base which is mounted on the paper deck of the printer and front and rear guides which are movably mounted to the base and have masking lips which overhang the longitudinal edges of the print paper. The front and rear guides are generally parallel to one another and are urged toward one another by bias springs. A separate masking frame of the desired print size is mounted to one of the two guides and moves with that guide to define transverse masking edges.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: April 13, 1982
    Assignee: Pako Corporation
    Inventors: Richard D. Anderson, Ronald B. Harvey, Randall C. Knudsen, John A. Wedel
  • Patent number: 4281913
    Abstract: A camera in which a standard film, 120 or 220 size is loaded behind the picture plane by using a standard film reel with film spool mounting members and means for guiding and holding the standard film and in which film back exchange is not carried out. The standard film reel is designed to be detachably mounted in the camera through an opening formed in the rear part of a reel accommodating chamber in the camera. The standard film can be replaced by a 70 mm film reel which is provided with mounting members for mounting a 70 mm film magazine outside and reel accommodating chamber and means for guiding said 70 mm film into the reel accommodating chamber and holding it therein. This is designed to be detachably mounted in the camera to thereby allow said camera to commonly use standard film and 70 mm film.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: August 4, 1981
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Tetsuji Shono, Takumi Kobayashi
  • Patent number: 4235660
    Abstract: Apparatus for repairing sprocket holes on strip material, such as motion picture film, with pressure adhesive tape having holes is provided with improved guide means for feeding material through a sprocket wheel mounted on a shaft at a repair station, an improved means for pressure bonding repair tape on material at the sprocket wheel, an improved sprocket design, and a cutting knife (attached to a knob which can be pushed in on the shaft against the force of a spring and which is used to turn the sprocket wheel) aligned with a slot in the sprocket wheel to cut the repair tape after repairs have been made, but only when the knife and a slot in the sprocket wheel are in a position where a pin in the knob that passes through the sprocket wheel can also pass through a hole in a wall that supports the shaft so the knife will cut only the repair tape, and not the tape and the material. A second embodiment uses a motor to turn the sprocket shaft, and a friction clutch at the end of the shaft to engage the knob.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: November 25, 1980
    Assignee: James S. Stanfield
    Inventor: Daniel E. Rodriguez
  • Patent number: 4218801
    Abstract: A film cleaning apparatus for cleaning the photographic film prior to printing includes special guides which permit the film cleaning apparatus to be used with both first-run production and tabbed reprint production. The film cleaning apparatus is of the type having a pair of support members in opposed relationship which define a nip which is disposed transverse to the path of the photographic film. Two lengths of soft, lint-free wiping cloth extend through the nip with the opposed surfaces of the cloth at the nip defining a part of the path. The guide includes first and second generally parallel guide plates having opposing surfaces defining an opening which is part of the path. The opening defined by the guide plates has an inlet end and an outlet end, and the plates are in fixed position with respect to the film cleaning apparatus with the outlet end of the opening proximate the nip.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: August 26, 1980
    Assignee: Pako Corporation
    Inventor: James F. Stewart
  • Patent number: 4189228
    Abstract: An apparatus for detecting a locator, e.g. a notch, perforation or mark, associated with each frame of an elongated film strip that is advanced through the apparatus. The apparatus includes guide members that are supported adjacent opposite longitudinal edges of the strip and a detector, such as a photoelectric cell and a light source, for sensing the locators. The guide members and the detector are coupled for movement in a direction transverse to the general direction of advancement of the strip and move in response to transverse wavering movement of the strip to ensure proper positioning of the detector relative to the locators as the locators approach the detector.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: February 19, 1980
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Farrell
  • Patent number: 4168114
    Abstract: A film gate for being received in a cassette which holds a film strip for projection therefrom; the gate provides stationary tapered guides against which a strip not lying precisely in a preselected focal plane, is cammed toward the preselected focal plane by the tapered guide fingers; an opposed movable guide on a movable portion of the film gate opposite to the stationary guide is provided with arcuate guide fingers to prevent the cammed film strip from moving away from the preselected focal plane.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: September 18, 1979
    Inventor: Ira Lopata
  • Patent number: 4161365
    Abstract: The neghold assembly of the present invention is used in photographic printers which do not have an automatic film advance system. The neghold assembly includes a transport base, a top insert holder, first and second aperture insert plates which are held in the transport base and the top insert holder, and a handle which is connected to the top insert holder. The first and second aperture insert plates are a set which have mating apertures which correspond to the desired film size. When a different size film is to be used, another set of first and second aperture insert plates having the appropriate size apertures are inserted.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: July 17, 1979
    Assignee: Pako Corporation
    Inventors: Richard D. Anderson, John A. Wedel
  • Patent number: 4155646
    Abstract: A printing head assembly is disclosed for use in a contact film printer for exposing raw stock film with a preprint film or negative. The printing head assembly includes an aperture jaw through which light is projected onto the film strips to transfer the images from the preprint film onto the raw stock. The printing head is adapted to be mounted with the aperture jaw adjacent a drive sprocket for driving the film webs past the aperture in a contact relationship and at a predetermined rate. The edge of the preprint film strip opposite the drive sprocket is supported by a shoulder or idler ring rotatably mounted within the printing head by a stationary support shaft. The support shaft is mounted with its axis extending at a small angle with respect to the horizontal. The rotating shoulder thus rotates in a plane offset from the vertical to permit sufficient clearance for the printing light beam to be projected through the printing aperture.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: May 22, 1979
    Assignee: Bell & Howell Company
    Inventor: Walter Hrastnik
  • Patent number: 4145127
    Abstract: A modular film transport and control mechanism for selectively advancing either regular 8mm or super 8mm perforated motion picture film through a projection gate is provided. The module comprises a film transport shuttle having a film engaging claw biased for engagement with the perforations of the film, a rotatable drive cam in operative engagement with the shuttle to reciprocally move the claw along horizontal and vertical paths to advance the film through the projection gate, and a pivotally mounted projection mode shifter interposed between the shuttle and the cam to transmit the desired horizontal motion from the cam to the shuttle, and selectively movable between at least two positions along a surface of the cam to change the mode of operation from normal projection to still projection. A control linkage connected to the shifter permits manual selection of the desired operating mode. The module also comprises a rotatable shutter mounted on a common shaft with the shuttle drive cam.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: March 20, 1979
    Assignee: GAF Corporation
    Inventors: Donald I. Loofbourow, Robert E. Lach
  • Patent number: 4143952
    Abstract: An aperture assembly is described for use in a motion picture camera, parularly a camera using film cartridges and requiring an aperture assembly with a very thin profile. The aperture assembly includes a thin metal base plate to provide strength for the assembly and for alignment of aperture components thereon. The aperture components include a thin molded aperture piece and a pair of thin molded cartridge alignment shoulders, all mounted on one side of the base plate. The base plate and the aperture piece both have aligned exposure windows through which the film is exposed and aligned slits for receiving a shuttle tooth for advancing the film. Each of the cartridge alignment shoulders has an internal groove communicating with a slit in the base plate for receiving a shuttle foot. A shuttle and a side tension member for use with the aperture assembly are also described.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: March 13, 1979
    Assignee: Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.)
    Inventors: Yukio Katahira, Toshiaki Morimoto
  • Patent number: 4094603
    Abstract: A film transport capable of periodically advancing roll film to present a flattened portion of the film at an exposure station between the supply and take-up spools. As originally developed the invention is applied to processing sensitized photographic film. Such a film, even when tightly rolled upon a spool, will exhibit a tendency to curl and bow transversely when unwound from the spool, the face of the film carrying the emulsion curving inwardly. This film transport as an accessory to a paper printer periodically presents to an "enlarger" in the printer successive frame portions of 35mm film or the like, in place of the regularly dispensed sensitized paper, while eliminating the hazard of damage to the image area of the film, this latter feature being achieved by non-use of any pressure plate or hold-down springs which might abrade the film surface and the substitution of means to exert a reverse bending strain on the film and thus to achieve a localized flattening of the film at the exposure station.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: June 13, 1978
    Inventor: Ben Fowler Evers
  • Patent number: 4071294
    Abstract: Photographic apparatus including an aperture plate adapted to cooperate with a pressure plate of a film handling cassette so as to laterally bow an incremental section of photographic film retained within the cassette into a precise location without contacting the usable portion of the emulsion. Additionally, the aperture plate is longitudinally channeled and includes a ramp extending along a portion of one side of the aperture plate channel so as to urge the film strip to its proper location as the film strip is translated traversely of the aperture plate during insertion of the cassette in the apparatus.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: January 31, 1978
    Assignee: Polaroid Corporation
    Inventor: Peter A. Scibilia
  • Patent number: 4037949
    Abstract: A motion picture projector having a slot for edgewise loading of the film is provided with a film strip encapsulating and drive system which is operated by a single control lever. Operation of a control lever moves a plurality of film path forming elements to an open position so that edgewise insertion of the film into the projector automatically forms loops on either side of a film gate. Closure of the control lever encapsulates the film strip within film gate drive sprockets and around a sound drum while maintaining free loops on either side of the film gate. The actuator includes a pair of switches to shut down a drive system projection lamp and an audio amplifier when moving between an open or loading position and a closed position to prevent inadvertent damage to the film which could occur if the drive means continued in operation. A second switch connected to the projection lamp and audio amplifier maintains these units in an off position when the actuator is in an open position.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: July 26, 1977
    Assignee: Bell & Howell Company
    Inventors: Vincent S. Pasturczak, Melvin T. Kerstein
  • Patent number: 3954330
    Abstract: A film gate formed as one integral unit by molding a black synthetic resin material includes a film gate portion, a recess for receiving a film driving member for reciprocal movement therein, film guide walls, positioning means and protective walls to protect resilient side pressure members from damage from careless loading of a film magazine. The positioning means may be used as reference position to secure the gate unit to a fixed frame of a motion picture apparatus. The side pressure members are formed as extensions of a holding member that also applies resilient force to the film driving member near the root of its film-advancing pawl.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: May 4, 1976
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiichi Sakaguchi, Noritsugu Hirata