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    Spark-discharge recording head with position sensor and control for imaging lithographic printing plates
    2.
    发明授权
    Spark-discharge recording head with position sensor and control for imaging lithographic printing plates 失效
    具有位置传感器的放电记录头和用于成像平版印刷版的控制

    公开(公告)号：US5121688A

    公开(公告)日：1992-06-16

    申请号：US553817

    申请日：1990-07-17

    申请人： Richard A. Williams ,  John P. Gardiner ,  Harry Roberts

    发明人： Richard A. Williams ,  John P. Gardiner ,  Harry Roberts

    IPC分类号： B41C1/14 ,  B41C1/10 ,  G01B13/12 ,  G01D15/08 ,  H04N1/032 ,  H04N1/23

    CPC分类号： H04N1/032 ,  B41C1/1033 ,  G01B13/12 ,  G01D15/08 ,  B41P2227/70 ,  B41P2235/23

    摘要： An imaging head for use in a spark-discharge recording apparatus, including a tracking system for monitoring and maintaining the head a fixed distance away from the surface of a recording blank. The tracking system preferably measures the distance between the head and the surface of the blank using a gas source oriented toward the blank's surface and a pressure sensor for measuring the pressure of the gas reflected therefrom. The signal produced by the pressure sensor indicates the size of the gap. The pressue sensor is coupled to a servo system that alters the position of the head to maintain a preselected gap distance.

    摘要翻译： 一种用于火花放电记录装置的成像头，包括用于监视和保持头部与记录坯料表面固定距离的跟踪系统。 跟踪系统优选使用朝向坯料表面定向的气体源来测量头部和坯料表面之间的距离，以及用于测量从其反射的气体的压力的压力传感器。 由压力传感器产生的信号表示间隙的大小。 压力传感器耦合到伺服系统，其改变头部的位置以保持预选的间隙距离。

    Pitch and roll adjustment for print-head assembly
    3.
    发明授权
    Pitch and roll adjustment for print-head assembly 失效
    打印头组件的俯仰调节

    公开(公告)号：US5103731A

    公开(公告)日：1992-04-14

    申请号：US709585

    申请日：1991-06-03

    申请人： Richard A. Williams ,  John P. Gardiner ,  Harry Roberts

    发明人： Richard A. Williams ,  John P. Gardiner ,  Harry Roberts

    IPC分类号： B41C1/10

    CPC分类号： B41C1/1033 ,  B41P2227/70 ,  B41P2235/23

    摘要： A pitch-and-roll adjustment mechanism for use in conjunction with a spark-discharge writing head. The mechanism provides structure for adjusting the physical position of the writing head with respect to a recording medium, and includes a flexure plate capable of flexing through a limited arc in two axes without permanent deformation.

    摘要翻译： 一种与火花放电写头一起使用的俯仰调节机构。 该机构提供了用于调节写入头相对于记录介质的物理位置的结构，并且包括能够在两个轴线上弯曲受限的电弧而不会永久变形的挠曲板。

    Printing apparatus with image error correction and ink regulation control
    5.
    发明授权
    Printing apparatus with image error correction and ink regulation control 失效
    具有图像纠错和墨水调节控制的打印设备

    公开(公告)号：US5163368A

    公开(公告)日：1992-11-17

    申请号：US639254

    申请日：1991-01-09

    申请人： Frank G. Pensavecchia ,  John P. Gardiner ,  John F. Kline ,  Thomas E. Lewis ,  Michael T. Nowak ,  Richard A. Williams ,  Stephen M. LaPonsey ,  Lawrence A. Howard

    发明人： Frank G. Pensavecchia ,  John P. Gardiner ,  John F. Kline ,  Thomas E. Lewis ,  Michael T. Nowak ,  Richard A. Williams ,  Stephen M. LaPonsey ,  Lawrence A. Howard

    IPC分类号： B41C1/05 ,  B41C1/04 ,  B41C1/055 ,  B41C1/10 ,  B41F7/02 ,  B41F31/02 ,  B41F33/00 ,  B41J2/525 ,  B41L19/00

    CPC分类号： B41C1/04 ,  B41C1/1033 ,  B41C1/1066 ,  B41F7/02 ,  B41P2227/70 ,  B41P2235/23 ,  Y10S101/47

    摘要： Printing apparatus has at least one print station including a blanket cylinder in rolling contact with an impression cylinder, a print cylinder for supporting a lithographic plate, the plate cylinder being in rolling contact with the blanket cylinder, at least one discharge source for applying an image to a plate supported by the plate cylinder, and a motor for moving the energy source relative to the plate cylinder so that when the plate cylinder is rotated, the discharge source scans a raster on the surface of the plate supported by the plate cylinder. The apparatus may be configured as an in-line or central-impression type press. A controller responsive to picture signals representing an original document repeatedly actuates each discharge source momentarily during the scan thereof so that the discharge source forms on the plate surface an image comprised of dots corresponding to the original document. The controller includes a dot-position look-up table for storing the x and y coordinates of substantially all dot positions on the plate and is arranged to actuate each energy source to form image dots at selected ones of the dot positions when said picture signals are present. The apparatus also includes provision for regulating the ink applied to the plate at each print station.

    摘要翻译： 打印装置具有至少一个打印站，该打印站包括与压印滚筒滚动接触的橡皮布滚筒，用于支撑平版印版的打印滚筒，印版滚筒与橡皮滚筒滚动接触，至少一个用于施加图像的排出源 到由印版滚筒支撑的板，以及用于相对于印版滚筒移动能量源的马达，使得当印版滚筒旋转时，排出源扫描由印版滚筒支撑的印版的表面上的光栅。 该装置可以被配置为直列式或中央印模型压机。 响应于表示原稿的图像信号的控制器在其扫描期间重复地启动每个放电源，使得放电源在板表面上形成由与原始文档相对应的点组成的图像。 控制器包括一个点位置查找表，用于存储板上基本上所有点位置的x和y坐标，并且被布置成当所述图像信号是所述点位置时，使得每个能量源在选定的点位置形成图像点 当下。 该设备还包括用于调节在每个印刷站处施加到印版的油墨的装置。

    Multicolor offset press with segmental impression cylinder gear
    8.
    发明授权
    Multicolor offset press with segmental impression cylinder gear 失效
    多色胶印机，带有压印滚筒齿轮

    公开(公告)号：US4936211A

    公开(公告)日：1990-06-26

    申请号：US234474

    申请日：1988-08-19

    申请人： Frank G. Pensavecchia ,  Richard A. Williams ,  John P. Gardiner ,  Stephen M. LaPonsey ,  John F. Kline

    发明人： Frank G. Pensavecchia ,  Richard A. Williams ,  John P. Gardiner ,  Stephen M. LaPonsey ,  John F. Kline

    IPC分类号： B41F7/02 ,  B41F7/10 ,  B41F13/00

    CPC分类号： B41F13/0008 ,  B41F7/10

    摘要： A low cost press able to print high quality continuous tone color copies comprises a single large diameter impression cylinder rotatably mounted to the machine frame. A plurality of print stations are spaced around the impression cylinder, each print station including a blanket cylinder in rolling contact with the impression cylinder and a plate cylinder in rolling contact with the blanket cylinder, the diameters of all of said plate and blanket cylinders being substantially the same and said impression cylinder having a diameter that is the same as or an even number more than the product of the plate cylinder diameter multiplied by the number of plate stations in the press. The cylinders are all rotatably coupled together by correspondingly sized gears so that they all rotate in unison with the impression cylinder gear being composed of arcuate parallel-cut segments having identical tooth profiles.

    摘要翻译： 能够打印高质量连续色调的低成本印刷机包括可旋转地安装在机架上的单个大直径压印滚筒。 多个打印站围绕压印滚筒间隔开，每个打印站包括与压印滚筒滚动接触的橡皮布滚筒和与橡皮滚筒滚动接触的印版滚筒，所有印版和橡皮布滚筒的直径基本上 相同的和所述压印滚筒的直径与印版滚筒直径乘以印刷机台数的乘积相同或甚至更多。 气缸通过对应的大小的齿轮可旋转地联接在一起，使得它们都与由具有相同齿廓的弓形平行切割段组成的压印圆筒齿轮一致地旋转。