Daylight projection screen and method and apparatus for making the same
    1.
    发明授权
    Daylight projection screen and method and apparatus for making the same 失效
    日光投射屏幕及其制作方法和装置

    公开(公告)号:US4172219A

    公开(公告)日:1979-10-23

    申请号:US661120

    申请日:1976-02-24

    IPC分类号: G03B21/60 B23K27/00

    CPC分类号: G03B21/60

    摘要: A layer of material which absorbs incident focussed laser light and undergoes a resultant heating is arranged in the focal plane of a lens matrix. Laser light is projected onto such layer through the lens matrix itself. The laser light is focussed by the lens elements of the lens matrix onto the layer effecting a highly localized heating of small well-defined portions of the layer. At those small well-defined portions, the material of the layer, as a result of the highly localized heating, removes itself to form the apertures of a lens-aperture matrix which is thereafter used in cooperation with the lens matrix as a rear projection or daylight projection screen.

    摘要翻译: 吸收入射的聚焦激光并经历所得加热的材料层被布置在透镜基体的焦平面中。 激光通过透镜基体本身投射到这样的层上。 激光由透镜基体的透镜元件聚焦到层上,对层的小的明确定义的部分进行高度局部化的加热。 在这些小的明确部分上,由于高度局部化的加热,该层的材料自身移除以形成透镜孔径矩阵的孔,其之后与透镜基体配合使用,作为背投影或 日光投影屏幕。

    Method and arrangement for protecting sheets from charring in copying
machines
    2.
    发明授权
    Method and arrangement for protecting sheets from charring in copying machines 失效
    在复印机中保护纸张不会烧焦的方法和装置

    公开(公告)号:US4049947A

    公开(公告)日:1977-09-20

    申请号:US665383

    申请日:1976-03-10

    CPC分类号: G03G15/2007

    摘要: In an electro-photographic copier of the type wherein an image is formed on an image-carrying sheet and is thereafter fixed by subjecting the sheet at a fixing station to the influence of heat, a combination comprises a heating arrangement at the fixing station for fixing an image on a sheet, and a conveyor arrangement for advancing the sheet through the station at a predetermined speed sufficient to permit the heating arrangement to fix the image on the sheet. An automatic de-actuating timing switch is employed to prevent charring of the sheet in the event that the latter is advanced through the fixing station at a speed lower than said predetermined speed.

    摘要翻译: 在这种类型的电子照相复印机中,其中图像形成在图像载体片上,然后通过在定影台处理片材而受到热的影响而固定,组合包括在定影台处的固定加热装置 片材上的图像,以及传送装置,用于以足以允许加热装置将图像固定在片材上的预定速度使片材前进。 采用自动停止定时开关来防止在后者以低于所述预定速度的速度前进通过定影站的情况下的纸张烧焦。

    Apparatus for developing electrostatic images with liquid toner
    3.
    发明授权
    Apparatus for developing electrostatic images with liquid toner 失效
    用液体调色剂显影静电图像的装置

    公开(公告)号:US4013356A

    公开(公告)日:1977-03-22

    申请号:US566685

    申请日:1975-04-10

    IPC分类号: G03D3/02 G03D5/00 G03G15/10

    CPC分类号: G03G15/101

    摘要: An electrophotographic copying machine wherein electrostatic images at the periphery of a rotary cylindrical printing base are transported below a grounded developing electrode having in its concave underside a series of shallow grooves each receiving fresh liquid toner through one or more inclined supply ports at the upstream end and each discharging spent liquid toner into one or more inclined evacuating ports at the downstream end thereof. The flow of liquid toner in the grooves is laminar, and the speed of liquid flow in the grooves equals or approximates the speed of movement of the printing base relative to the electrode. The electrode carries several distancing rolls which extend beyond its underside and the electrode is biased by springs so that the distancing rolls bear against and roll along the periphery of the printing base.

    摘要翻译: 一种电子照相复印机,其中在旋转圆柱形印刷基底的周边处的静电图像被传送到具有在其凹下侧的接地显影电极下面的一系列浅槽,每个浅槽通过在上游端的一个或多个倾斜供应端口接收新鲜的液体调色剂, 每个排出的废液体调色剂在其下游端处于一个或多个倾斜排气口。 槽中的液体调色剂的流动是层流的,并且槽中的液体流速等于或接近印刷基底相对于电极的移动速度。 电极承载几个延伸超过其下侧的间隔辊,电极被弹簧偏压,使得隔离辊承载并沿着印刷基底的周边滚动。

    Method and arrangement for preventing sheets from charring in copying
machines
    4.
    发明授权
    Method and arrangement for preventing sheets from charring in copying machines 失效
    在复印机中防止纸张烧焦的方法和装置

    公开(公告)号:US4034186A

    公开(公告)日:1977-07-05

    申请号:US665382

    申请日:1976-03-10

    IPC分类号: G03G15/20 H05B1/00

    CPC分类号: G03G15/2007

    摘要: In an electro-photographic copier of the type wherein an image is formed on an image-carrying sheet and is thereafter fixed by subjecting the sheet at a fixing station to the influence of heat, a combination comprises a heating device at the fixing station for fixing an image on a sheet, and a conveyor device for moving the heating device relative to a sheet located in the fixing station at a predetermined speed sufficient to permit the heating device to fix the image on the sheet and also to prevent charring of the latter. A sheet-advancing device advances a sheet through the fixing station in direction opposite to the direction of movement of the conveyor device so as to increase the relative speed between the heating device and the advancing sheet. The movement of the heating device relative to the sheet prevents charring or burning of the sheet in the event that the sheet-advancing device malfunctions and advances a sheet at speeds lower than its normally rated speed, including zero speed, i.e., complete breakdown.

    摘要翻译: 在一种电子照相复印机中,其中图像形成在图像载体片上,然后通过在定影台处理片材而受到热的影响而固定,组合包括在固定位置的加热装置,用于固定 片材上的图像和用于相对于位于定影站中的片材以预定速度移动加热装置的输送装置,该预定速度足以允许加热装置将图像固定在片材上,并且还防止加热装置的焦炭化。 片材推进装置使片材沿着与输送装置的移动方向相反的方向推进定影台,以增加加热装置和推进片材之间的相对速度。 加热装置相对于片材的运动在片材提前装置发生故障并以低于其正常额定速度(包括零速度即完全击穿)的速度前进的情况下防止片材烧焦或燃烧。

    Apparatus for making copies of multi-colored originals
    5.
    发明授权
    Apparatus for making copies of multi-colored originals 失效
    复印多色原稿的装置

    公开(公告)号:US4017171A

    公开(公告)日:1977-04-12

    申请号:US596737

    申请日:1975-07-17

    IPC分类号: G03G15/01 G03G15/26 G03B27/58

    CPC分类号: G03G15/0142 G03G15/26

    摘要: A color copying apparatus wherein a copy carrier sheet is attracted by the suction chamber of a carriage which is reciprocable along a horizontal path past an exposure station and along a battery of aligned developing units. After each exposure with a different filter, the sheet is moved into register with a different developing unit. The carriage is moved by an endless belt which has a pin receivable in one of two vertical slots on a plate-like female coupling member of the carriage. Guide rollers automatically disengage the pin from the coupling member when the carriage reaches the exposure station. The suction chamber is then attracted by electromagnets so that two sockets of the suction chamber move downwardly and receive stationary centering pins which hold the carrier in a predetermined position during each of a series of exposures. This insures accurage register of successively projected and developed images in the three basic colors.

    摘要翻译: 一种彩色复印装置,其中复印载体片材被滑架的吸入室吸引,所述吸入室沿着水平路径往复运动经过曝光站并且沿着一组排列的显影单元。 在使用不同的过滤器进行每次曝光之后,将纸张移动到与不同的显影单元对准。 托架通过环形带移动,该环带具有可接收在托架的板状阴联接构件上的两个垂直槽之一中的销。 当托架到达曝光站时,引导辊自动将销与联接构件分离。 吸入室然后被电磁体吸引,使得吸入室的两个插座向下移动并接收固定的定心销,其在一系列曝光期间的每一个期间将载体保持在预定位置。 这确保了三种基本颜色的连续投影和显影图像的精度寄存器。

    Apparatus for developing latent electrostatic images
    7.
    发明授权
    Apparatus for developing latent electrostatic images 失效
    静电潜像显影装置

    公开(公告)号:US4179210A

    公开(公告)日:1979-12-18

    申请号:US836541

    申请日:1977-09-26

    IPC分类号: G03G15/10 G03D3/02

    CPC分类号: G03G15/101

    摘要: Apparatus for developing latent electrostatic images on dielectric carrier sheets has a rotary cylinder whose periphery supports a carrier sheet with a latent image thereon, and a metallic block having a concave surface which constitutes a grounded electrode and defines with the exposed side of the carrier sheet on the cylinder a narrow gap of constant or gradually decreasing width, as considered in the direction of rotation of the cylinder. The block has alternating fluid-admitting and fluid-evacuating orifices which communicate with the gap and extend transversely of the path of movement of the carrier sheet. Each fluid-admitting orifice is nearer to the preceding than to the next-following fluid-evacuating orifice, and the width of the fluid-evacuating orifices exceeds the width of the fluid-admitting orifices. The block is located below the cylinder and the fluid-evacuating orifices communicate with a collecting tank into which spent developing fluid flows by gravity. The fluid-admitting orifices receive pressurized fresh developing fluid from a pump. Each unit volume of freshly admitted fluid dwells in the gap for the same interval of time because some of the fluid issuing from a fluid-admitting orifice flows forwardly toward the next-following fluid-evacuating orifice at a speed higher than the speed of the remainder of the fluid issuing from the same fluid-admitting orifice and flowing backwards toward the preceding fluid-evacuating orifice.

    摘要翻译: 用于在电介质载体片上显影静电图像的装置具有旋转圆筒,其外周支撑有其上具有潜像的载体片,并且具有构成接地电极的凹面的金属块,并且将载体片的暴露侧限定在 气缸是气缸旋转方向上所考虑的恒定或逐渐减小的窄间隙。 该块具有与间隙连通并且与承载片的移动路径横向延伸的交替的流体引入和流体排出孔。 每个流体导入孔比接下来的流体排出孔更接近前面,并且流体排出孔的宽度超过流体允许孔的宽度。 该块位于气缸下方,并且排出流体的孔与收集罐连通,废液通过重力流入其中。 流体允许孔从泵接收加压的新鲜显影液。 每个单位体积的新进入的流体在间隙中停留相同的时间间隔,这是因为从流体允许孔口发出的一些流体以比其余部分的速度高的向下流动排出的孔排出。 从相同的流体导入口发出的流体向后流向先前的流体排出口。