Abstract: The present invention relates to a display comprising at least one substrate having at least one electrically modulated imaging layer thereon, at least one patterned electrically conductive layer, and at least one antistatic layer.

Abstract: A method of calibrating digital images having pixels with pixel values includes the steps of: exposing a photographic element to form a latent image of a reference calibration target including a plurality of reference calibration patches; exposing the photographic element to form a latent image of a scene; processing the photographic element to form developed images from the latent images on the photographic element; scanning the developed images to produce digital images; measuring the pixel values of the digital image of the reference calibration target to produce a measured value for each of the reference calibration patches; obtaining an aim value and adjustment data corresponding to each reference calibration patch; generating image calibration corrections using the measured values, the aim values, and the adjustment data; and applying the image calibration corrections to the digital image of the scene.

Abstract: Apparatus for exposing reference calibration patches onto photosensitive medium, includes: a light source; a plurality of optical fibers, one fiber for each element to be exposed; a light collector having an input port for receiving light emitted by the light source and an output port for delivering light to one end of the optical fibers; a plurality of light attenuators located with respect to the optical fiber for individually attenuating the light transmitted by each fiber; a projection print head located at the other end of the optical fibers for directing light from the fiber onto the photosensitive medium; and a controller connected to the light source for measuring and controlling the light output of the light collector.

Abstract: Reference calibration patches produced by a sequence of exposures on a photographic element, the photographic element exhibiting linear defects in a predominant direction, are arranged in a two dimensional array and exposures are assigned to the reference calibration patches in the array such that nearest neighbors in the predominant direction are not nearest neighbors in the exposure sequence, whereby the effects of a linear defect are reduced; and the maximum number of steps in the exposure sequence between a reference calibration patch and that of its nearest neighbors in any direction is less than a predetermined number, whereby the effects of flare are reduced.

Abstract: A method of recording a reference calibration target on an APS format photographic element having a reserved area for use by photofinishing apparatus, and a perforation located relative to the reserved area, includes the steps of: generating a reference calibration target having a width no greater than 30.2 mm and a height no greater than 16.7 mm; locating the reserved area of the photographic element relative to the perforation; and recording the reference calibration target within the reserved area.

Abstract: A ported vacuum drum (20, 56-98) is provided on its exterior cylindrical surface (22) with a master layer (24) of magnetic recording medium in position to contact a slave layer (14) of magnetic recording medium provided on one side and along at least one edge of a web (10); so that, vacuum applied (74-82) between the cylindrical surface and the web at locations (88-94) spaced from the zone of contact (98) between the recording media will hold the slave layer on the web securely in contact with the master layer on the drum as the drum rotates, thereby permitting anhysteretic recording from the master layer to the slave layer. A method of anhysteretically recording is taught.

Abstract: A ported vacuum drum (20, 56-98) is provided on its exterior cylindrical surface (22) with one or more lengths (24) of a master magnetic recording medium supported by bands (102) of elastomeric material in position to contact a layer (14) of slave magnetic recording medium provided on one side and along at least one edge of a web (10); so that, vacuum applied (74-82) between the cylindrical surface and the web at locations (88-94) spaced from the zone of contact (98) between the recording media will hold the slave layer on the web securely in contact with the length of master magnetic recording medium on the drum as the drum rotates, thereby permitting anhysteretic recording from the master to the slave. A method of anhysteretically recording is taught.

Abstract: Apparatus for pneumatically clamping and magnetically biasing magnetic media during anhysteretic transfer comprises a housing (64, 74, 76, 80, 82, 88, 90, 96, 98) which encloses a pair of pneumatic plenums (112) connected to a source of high pressure air (70, 72, 73) and a pair of arrays (106) of biasing magnets (108); so that, air from the plenums flows between the magnets and bands (57) at the edges of the media to provide intimate contact of the media during anhysteretic transfer.

Abstract: A prerecorded magnetic master web (54) and an unrecorded magnetic slave web (14), such as a photographic film having a magnetic coating, are brought into intimate contact for anhysteretic recording by wrapping the moving master web partially around a small diameter gimballed roller (66) positioned in close proximity to a rotating transfer drum (36); wrapping the moving slave web partially around a larger idler roller (34) positioned in close proximity to both the gimballed roller and the transfer drum; wrapping the slave web partially around the transfer drum with the master web wrapped outside the slave web; and evacuating a chamber or volume (68) formed among the webs, rollers and drum, to remove air from between the webs and cause them to converge into intimate contact at a nip upstream of a signal transfer zone in which a magnetic head (70) applies a decaying magnetic field to cause anhysteretic transfer from the master web to the slave web.

Abstract: A method is provided for automatically opening and removing a web from a clamshell film cassette. During opening of the cassette a first actuatable means releases a cassette latch. A second means is provided to open one clamshell half upon release of the latch, and a third means is provided to open the other clamshell half. The second and third means each include a pivotal arm having a plurality of suction cups for gripping a wall of a calm shell half. The pivotal arms are positioned by automatic actuators. Vacuum means are provided for picking up the leading end of a web roll within the cassette and transporting it to a web path.

Abstract: A two part clamshell web cassette is provided with a central recess for receiving a web roll core. The core and cassette half shells have mating surfaces which form a labyrinth light seal when the cassette is closed and which prevent rotation of the core during handling of the cassette to provide a core brake. Surfaces on the cassette parts clamp the web rail of a partially dispensed web roll when the cassette is closed. The core brake and web clamping surfaces facilitate transport of the cassette without loss of intra-roll web tension. The cassette is provided with a latch for retaining the cassette half shells in a closed light sealed condition. A frangible covering over a latch release means indicates when broken that the cassette may have been opened prematurely. The cassette further includes a web end retaining means which retains the web end portion to the underlying convolution.

Abstract: Apparatus is provided for automatically opening and removing a web from a clamshell film cassette. During opening of the cassette a first actuatable means releases a cassette latch. A second means is provided to open one clamshell half upon release of the latch, and a third means is provided to open the other clamshell half. The second and third means each include a pivotal arm having a plurality of suction cups for gripping a wall of a clamshell half. The pivotal arms are positioned by automatic actuaters. Vacuum means are provided for picking up the leading end of a web roll within the cassette and transporting it to a web path.

Abstract: A two part clamshell web cassette is provided with a central recess for receiving a web roll core. The core and cassette half shells have mating surfaces which form a labyrinth light seal when the cassette is closed and which prevent rotation of the core during handling of the cassette to provide a core brake. Surfaces on the cassette parts clamp the web tail of a partially dispensed web roll when the cassette is closed. The core brake and web clamping surfaces facilitate transport of the cassette without loss of intra-roll web tension. The cassette is provided with a latch for retaining the cassette half shells in a closed light sealed condition. A frangible covering over a latch release means indicates when broken that the cassette may have been opened prematurely. The cassette further includes a web end retaining means which retains the web end portion to the underlying convolution.

Abstract: In a conventional vacuum box a loop of a web material is received in an elongate chamber of the box, and a vacuum at the lower portion of the chamber draws air through the chamber to hold the loop of web material under tension as it moves through the chamber. When the web has one or more notches along a side edge thereof, the web may vibrate excessively and experience a drop in web tension as the notch passes through the bottom of the loop in the box. In order to avoid this problem an endless ring of flexible material is positioned in the vacuum box and within the loop of web material. The ring has a plurality of spaced openings around the circumference of the ring, and they are offset from the side edges of the ring so that the portion of the ring adjacent the openings will cover the notches in the web as the web passes through the bottom of the loop in the vacuum box, thus avoiding the excessive vibration in the web and loss in web tension mentioned above.

Abstract: A raking mechanism having a frame and a pair of rake baskets movably mounted thereon is disclosed wherein the frame includes a draft member adapted for connection to a prime mover and a pair of arms pivotally connected to the draft member and supported above the ground by respective wheels. The arms carry the respective rake baskets and are pivotally movable in a generally horizontal plane to displace the rake baskets transversely of the draft member. The rake baskets are also movable relative to the respective arms to vary the angle at which the rate baskets engage the crop material lying on the ground to provide a variety of positions of the rake baskets relative to the draft member and, consequently, provide a number of operative positions and operations the raking mechanism can undertake. A method of converting the raking mechanism from a collapsed transport position to an infinitely adjustable operative position is also disclosed.

Abstract: A baler feed assembly includes a stuffer mechanism having a smooth acting lever or slotted member which moves between a substantially vertical position and a substantially horizontal position. The slotted member pivots about a fixed shaft and includes an upper slot and a lower slot. A crank shaft having a roller member associated therewith, engages the upper slot by means of the roller member to thereby impart motion to the slotted member so that the slotted member can move between the aforesaid positions. A spring is connected to the slotted member at one end and to a fixed support at another end. Preferably, the spring is connected so that its line of action is aligned with the center of the fixed shaft when the slotted member is in the substantially vertical position. By this construction, when the slotted member is moved from the vertical position, the spring insures that the roller member, associated with the crank shaft, is in engagement with only one side of the upper slot.

Abstract: In a bale case (20) of an agricultural baler, a reciprocating plunger (71) is connected by a connecting rod assembly (90) and a wrist pin (92) to a driving crankshaft (74). A tension adjusting system (60) is provided for adjusting the dimensions of a bale case (20). The tension adjusting system (60) is responsive to a signal produced by sensors which sense stress when a compactive force is applied by the plunger (71) to crop material in the bale case (20). In one embodiment shear stress sensors (124, 126, 128, and 130) are mounted in annular recesses (120, 122) on the exterior of a wrist pin (92) to sense upon compaction the shear stress experienced by the wrist pin (92) in shear planes (160A, 160B). In another embodiment shear stress sensors (170, 171, 172, and 173) are mounted on an interior surface (174) of a wrist pin (90') to sense the shear stress experienced by the wrist pin (92') in shear planes (176, 177).

Abstract: In a roll baling machine having a bale forming apron defining an expandable bale chamber, guide members extending into the bale chamber to support the apron and thereby define an initial shape for the bale chamber, the guide members being movable out of the bale chamber during bale formation without being opposed by springs which are employed to urge the guide members back into the bale chamber after bale discharge.