Abstract: A movable barrier operator comprising a motor, communication circuitry configured to receive a control signal and communicate with a door lock associated with a passageway door, and a controller. The controller is configured to authenticate the control signal, wherein authenticating the control signal includes associating the signal with a first level of access or a second level of access. The controller is further configured to communicate with the door lock via the communication circuitry to permit opening of the passageway door in response to associating the control signal with the first level of access and inhibit opening of the passageway door in response to associating the control signal with the second level of access. The controller is configured to cause the motor to open the movable barrier regardless of association of the control signal with the first level of access or the second level of access.

Abstract: A movable barrier operator comprising a motor, communication circuitry configured to receive a control signal and communicate with a door lock associated with a passageway door, and a controller. The controller is configured to authenticate the control signal, wherein authenticating the control signal includes associating the signal with a first level of access or a second level of access. The controller is further configured to communicate with the door lock via the communication circuitry to permit opening of the passageway door in response to associating the control signal with the first level of access and inhibit opening of the passageway door in response to associating the control signal with the second level of access. The controller is configured to cause the motor to open the movable barrier regardless of association of the control signal with the first level of access or the second level of access.

Abstract: A device for controlling the tension in a web of a printing press includes an adjustably positionable dancer roll coupled to an air cylinder. The dancer roll engages the web at a position subsequent to the chill exit nip rolls and prior to a next nip roll pair, e.g., the slitter unit entrance nip rolls. The air cylinder applies a biasing force on the dancer roll to maintain contact between the dancer roll and the web. A control device is coupled between the dancer roll and the next nip roll pair. The control device monitors the position of the dancer roll and increases or decreases the speed of the next nip roll pair based on the direction and magnitude of the dancer roll movement. In this manner, the tension in the web is kept substantially constant between the chill exit nip rolls and the next nip roll pair.

Abstract: A printing unit for a web fed rotary printing press for printing newspapers is provided in which the central impression cylinder (2) is commonly rotatably mounted in the two side walls (14a, 14b) of the housing (14) of the printing press and the blanket cylinder (4) and/or print cylinder (6) are rotatably cantilevered on one end in the first side wall (14a) during the make ready operation of the printing press, allowing a quick and easy changing of the cylinders (4, 6) via an opening (30) formed in the second side wall (14b). When the printing press is in operation the blanket and print cylinders (4, 6) may be additionally rotatably supported in a side plate (32) fitted to the opening (30), or may remain unsupported on their other ends.

Abstract: An offset lithographic printing process comprising printing at a relative humidity of 75-90% utilizing a water-based, single fluid, fountain solution free, printing ink containing (a) a macromolecular binder composed of binders soluble in water regardless of the pH of the water; resin rosin salt binders soluble in water at a pH from 7.5 to 10; and aqueous emulsion binders; (b) pigment and; (c) a re-wetting agent.

Abstract: A method of removing heat from a moving web includes providing a quantity of a liquid which has a temperature of vaporization below the surface temperature of the web; heating the liquid to a temperature slightly below the temperature of vaporization of the liquid; spraying the heated liquid onto the surface of the web; and vaporizing liquid from the surface of the web to cool the web. In a preferred embodiment, an electrically charged screen is disposed intermediate the sprayer and the web. The liquid passes through openings in the screen to form electrically charged droplets of liquid which move onto the surface of the web. An apparatus for removing heat from a moving web includes liquid supply means for providing a liquid having a temperature of vaporization below the surface temperature of the web; heater means for heating the liquid to a temperature slightly below its temperature of vaporization; and sprayer means for spraying the heated liquid onto the surface of the web.

Abstract: Web cooling device where liquid is applied to both sides of a hot web to enhance cooling via evaporation of the liquid from the web.

Abstract: A production apparatus has several printing units with collecting tanks for receiving wash residue. A cleaning and waste disposal system within the production apparatus includes a collection feeding pipe connected to the collecting tanks of the printing units. A central collecting tank which is connected to the collection feeding pipe contains a pump module. A thermal dryer has a burner system. A burner feeding pipe is connected between the central collecting tank and the burner system for guiding fluid from the central collecting tank, through the burner feeding pipe, to the burner system during a production run.

Abstract: An apparatus for transferring heat from a web includes a chill roll having a cylindrical outer side surface. The web moves along a path which extends part way around the chill roll. A nozzle extends between opposite edge portions of the web and extends circumferentially around a portion of the cylindrical outer side surface of the chill roll. A central portion of the nozzle directs a flow of air against a central portion of the web upstream of a location where the web normally engages the chill roll to deflect the central portion of the web into engagement with the chill roll. Opposite side portions of the nozzle extend away from the central portion of the nozzle and extend downstream from the location where the central portion of the web is deflected toward the chill roll. This results in a smoothing action which extends across the web and downstream along the web from the central portion of the web.

Abstract: A lift truck (16) carries a leftwardly directed ultrasonic receiver (32L) and a rightwardly directed ultrasonic receiver (32R) and an RF transmitter (34). Upon depositing its load in an assigned bin in a warehouse (FIG. 1), a load sensor (22) is actuated to cause transmission of a coded signal as to lift height and vehicle identification to a central station (60). This initiates a vehicle search by energizing ultrasonic transmitters (42-52). The ultrasonic receivers (32L and 32R) on a vehicle in a path under surveillance detect the sonic signal and relay this to the central station by way of the RF transmitter (34). The time duration which elapsed from energization of the ultrasonic transmitter to detection of the sonic signal is used to measure vehicle path depth and a comparison of the magnitudes of the sonic signals received by the receivers (32L and 32R) indicates the heading direction of the vehicle.

Abstract: A bindery caliper is provided in the form of a non-contacting capacitive change measuring device capable of determining the page count of a multi-page stack with high sensitivity. The capacitance of a pair of plates between which the stack of pages is disposed sets the frequency of an oscillator which is sampled for a predetermined time period. The sampled pulses are counted and compared to a standard within tolerances, and the comparison determines whether the page count is satisfactory. Means for updating the standard value on the basis of accumulated measurements is also provided.