Arrangement for separating sheets of paper and the like
    1.
    发明授权
    Arrangement for separating sheets of paper and the like 失效
    用于分离纸张等的布置

    公开(公告)号:US3976291A

    公开(公告)日:1976-08-24

    申请号:US524866

    申请日:1974-11-18

    摘要: In the arrangement, a batch or stack of vertically oriented recording media sheets is supported on edge on a horizontal vibrating table which is vibrated by a vibrating conveyor and the sheets are advanced singly, starting with the leading or frontmost sheet, through a separating slot between a pair of endless belts constituting a transporting arrangement. A first rotating suction drum is mounted at the rear end of the vibrating table and is formed with circumferentially spaced suction bores for operative relation with a rotary slide valve to connect the suction bores intermittently to a suction system. A second rotating suction drum is arranged within the range of the separating slot and serves as a separating drum, and a hold-back suction drum is also arranged within the range of the separating slot and serves as a hold-back device, the hold-back suction drum having the same design as the first rotating suction drum. The second rotating suction drum is also operatively associated with a rotary slide valve and has a single series of slots aligned in an axial plane and intermittently connected to a suction system by the associated rotary slide valve.

    摘要翻译: 在该布置中,垂直定向的记录介质片材的一批或多个堆叠在由振动传送器振动的水平振动台上的边缘上支撑,并且片材从先行或最前面的片材开始,单独地前进,通过分隔槽 构成输送装置的一对环形带。 第一旋转抽吸鼓安装在振动台的后端,并且形成有周向隔开的抽吸孔,用于与旋转滑阀操作关系,以将抽吸孔间歇地连接到抽吸系统。 第二旋转抽吸鼓布置在分离槽的范围内,并用作分离鼓,并且在分离槽的范围内还设置有压缩式吸鼓,并且用作保持装置, 背吸鼓具有与第一旋转吸盘相同的设计。 第二旋转抽吸滚筒还与旋转滑阀可操作地相关联,并且具有在轴向平面中对准的单个系列的槽并且通过相关联的旋转滑阀间歇地连接到抽吸系统。

    Test device for dynamically measuring the degree of dirt accumulation on
bank-notes
    2.
    发明授权
    Test device for dynamically measuring the degree of dirt accumulation on bank-notes 失效
    用于动态测量纸币上积垢程度的测试装置

    公开(公告)号:US4189235A

    公开(公告)日:1980-02-19

    申请号:US855734

    申请日:1977-11-29

    IPC分类号: G07D7/12 G07D7/187 G01N21/32

    CPC分类号: G07D7/12 G07D7/187

    摘要: A device for dynamically measuring the degree of dirt accumulation on bank-notes in which certain areas of the bank-note are illuminated and examined by means of a receiving unit. The light from a succession of adjacent elemental areas of a bank-note so illuminated is dependent upon the degree of dirt accumulation and is converted into a corresponding electric signal. The signal is analyzed to determine the number and amount of changes due to dirt accumulated in creases, and the analyzed signal is integrated to determine whether or not the number and nature of areas of accumulated dirt makes the ban-note unsuitable for further circulation.

    摘要翻译: 一种用于动态测量钞票上的污垢累积程度的装置,其中钞票的某些区域通过接收单元被照亮和检查。 来自如此照亮的钞票的相继的元素区域的一系列的光取决于污垢累积的程度并且被转换成相应的电信号。 分析信号以确定由于折痕中积聚的污垢引起的变化的数量和数量,并且分析的信号被整合以确定累积污垢区域的数量和性质是否不适合进一步循环。

    Measuring and linearizing circuit device for a capacitive primary element
    3.
    发明授权
    Measuring and linearizing circuit device for a capacitive primary element 失效
    电容性初级元件的测量和线性化电路器件

    公开(公告)号:US4563634A

    公开(公告)日:1986-01-07

    申请号:US531972

    申请日:1983-09-14

    申请人: Erhard Lehle

    发明人: Erhard Lehle

    CPC分类号: G01N27/122 G01N27/223

    摘要: A humidity sensor operates with a capacitive sensor element (C.sub.S) which is arranged in one branch of a free-running multivibrator (MV), whereas a reference capacitor (C.sub.ref) is arranged in the other branch of said multivibrator. Both output signals (U1, U2) of said multivibrator (MV) are averaged by means of RC elements (R3, C1; R4, C2) and supplied to a differential amplifier (DV), the output signal (Ua) of which changes the operating voltage (U.sub.B) of the multivibrator (MV), and therefore, linearizes the characteristic of the capacitive sensor element (C.sub.S).

    摘要翻译: 湿度传感器与电容传感器元件(CS)一起工作,电容传感器元件(CS)被布置在自由运行的多谐振荡器(MV)的一个分支中,而参考电容器(Cref)被布置在所述多谐振荡器的另一分支中。 通过RC元件(R3,C1; R4,C2)对所述多谐振荡器(MV)的输出信号(U1,U2)进行平均并提供给差动放大器(DV),其输出信号(Ua) 多重谐振器(MV)的工作电压(UB),因此线性化电容式传感器元件(CS)的特性。

    Paper secured against forgery and device for checking the authenticity
of such papers
    5.
    发明授权
    Paper secured against forgery and device for checking the authenticity of such papers 失效
    纸张保证对付这些纸张的正本的锻造和装置

    公开(公告)号:US4146792A

    公开(公告)日:1979-03-27

    申请号:US883592

    申请日:1978-03-06

    摘要: The paper carries, at one or more points, materials which, in the excited condition, fluoresce in the visible, ultraviolet, or infra-red spectral range in the characteristic emission spectra. The device includes a light source for exciting fluorescent substances, a condenser lens concentrating the light emitted by the paper, a narrow band interference filter, a focusing lens, and a series of photocells arranged in the focal plane of the focusing lens. The geometric arrangement of the photocells is chosen appropriately to identify an emission-line doublet. The outputs of the photocells are fed to a pre-amplifier and then to a comparator which may effect a subtraction of the amplified photocell output to provide an output signal. In a variation, the quotient of the photocurrents of two photocells is compared to establish the authenticity of the paper.

    Apparatus for a contact-free transmission of electrical signals
    6.
    发明授权
    Apparatus for a contact-free transmission of electrical signals 失效
    电子信号无接触传输的装置

    公开(公告)号:US5142280A

    公开(公告)日:1992-08-25

    申请号:US399988

    申请日:1989-08-29

    申请人: Erhard Lehle

    发明人: Erhard Lehle

    IPC分类号: G08C15/06 G08C17/04

    CPC分类号: G08C17/04 G08C15/06

    摘要: In an apparatus for contact-free transmission of condition responsive electrical signals from a rotating machine part to a stationary machine part a single rotational transformer having a stationary primary winding and a rotating secondary winding is used for (a) transmitting power supply signals from a stationary evaluation circuit to a rotating transducer, (b) transmitting condition responsive measuring signals from the transducer to the evaluation circuit, and (c) transmitting synchronizing signals between the transducer and the evaluation circuit.

    摘要翻译: 在用于从旋转机器部件到固定机器部件的无条件传送条件响应电信号的装置中,使用具有固定初级绕组和旋转次级绕组的单个旋转变压器来(a)从静止的 评估电路到旋转传感器,(b)将从所述换能器到所述评估电路的响应测量信号的状态发送状态,以及(c)在所述换能器与所述评估电路之间传输同步信号。

    Device for speed control of an asynchronous motor
    7.
    发明授权
    Device for speed control of an asynchronous motor 失效
    异步电动机速度控制装置

    公开(公告)号:US4908564A

    公开(公告)日:1990-03-13

    申请号:US205433

    申请日:1988-06-10

    申请人: Erhard Lehle

    发明人: Erhard Lehle

    IPC分类号: H02P21/00 H02P23/22

    CPC分类号: H02P23/22 H02P21/00

    摘要: The properties synchronous motors are provided to an asynchronous motor fed with the aid of a digital speed control via a static converter. For this purpose, a signal proportional to an integral of the rotation-speed deviation, and a signal corresponding to the rotation-speed set-point value, are multiplied with each other and therefrom is obtained the control-pulse sequence for the converter. From an input sequence corresponding to the measured rotation speed, a signal corresponding to the period duration of the rotation-speed measurement-device frequency is obtained, and this signal is divided by a value corresponding to the rotation-speed set-point value. The period-duration signal referring to the rotation-speed set-point value thus obtained is switched opposite to the control-deviation signal, before the control-deviation signal is fed to the multiplier.

    摘要翻译: 特性同步电动机通过静态转换器提供给借助数字速度控制馈送的异步电动机。 为此,将与转速偏差的积分成比例的信号和与转速设定值相对应的信号彼此相乘,从而得到转换器的控制脉冲序列。 从对应于测量的转速的输入序列获得与转速测量装置频率的周期持续时间相对应的信号,并且将该信号除以与转速设定值相对应的值。 在将控制偏差信号馈送到乘法器之前,参考这样获得的转速设定值的周期持续时间信号与控制偏差信号相反地切换。