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    • 7. 发明授权
    • Circuit arrangement for distributing an antenna signal to two appliances
    • 用于将天线信号分配给两个设备的电路布置
    • US4969050A
    • 1990-11-06
    • US235668
    • 1988-08-24
    • Gerhard MaierBertram Fischer
    • Gerhard MaierBertram Fischer
    • H04N5/44H03H11/36H04N5/775
    • H04N5/7755
    • A circuit arrangement for distributing an antenna signal to input terminals of two appliances. One of these appliances is connected to a variable frequency modulator. An attenuating filter stage is connected between a pre-amplifier and the input of the appliance that is connected to the modulator. The pre-amplifier receives and amplifies the antenna signal. The attenuating filter stage is a frequency trap which has a trapping frequency that is identical to the modulator frequency and is synchronized with tuning of the modulator frequency. The attenuating filter stage, furthermore, is always exactly tuned to the frequency of the modulator and has a tuned frequency that is always aligned in parallel to the frequency of an oscillator in the modulator, so that modulation is not present.
    • 一种用于将天线信号分配给两个设备的输入端的电路装置。 这些器具中的一个连接到可变频率调制器。 衰减滤波器级连接在前置放大器和连接到调制器的器具的输入端之间。 前置放大器接收和放大天线信号。 衰减滤波器级是具有与调制器频率相同的捕获频率并与调制器频率的调谐同步的频率陷波器。 此外,衰减滤波器级总是精确地调谐到调制器的频率,并且具有总是与调制器中的振荡器的频率对齐的调谐频率,使得不存在调制。
    • 9. 发明授权
    • Rotary material removing tool with expendable blades
    • 具有消耗性刀片的旋转材料去除工具
    • US3957094A
    • 1976-05-18
    • US490216
    • 1974-07-19
    • Gerhard Maier
    • Gerhard Maier
    • B27L11/00B27G13/04B26D1/36
    • B27L11/005Y10T407/193Y10T407/1932Y10T407/1936Y10T407/23Y10T83/9464
    • A tool for removing shavings from wood has a rotary main body portion provided with recesses extending inwardly from the peripheral surface and receiving elongated plate-like holders for flat blades made of sheet steel. Each blade is formed with openings for locating pins on the respective holder, and each holder is urged toward an internal surface of the body portion by a spring-biased wedge. Strip-shaped guide members are adjustably connected with the holders and are slidable in grooves machined into the internal surfaces of the body portion. A blade can be removed or inverted by moving the respective wedge away from the holder and by thereupon moving the holder axially of the body portion so that the blade can be lifted off the locating pins. The holders and the guide members have cooperating surfaces along which the holders can slide to thereby move the cutting edges of the blades toward or away from the axis of the body portion.
    • 用于从木头去除切屑的工具具有旋转主体部分,其设置有从圆周表面向内延伸的凹部,并且接收由钢板制成的扁平叶片的细长板状保持器。 每个叶片形成有用于在相应的保持器上定位销的开口,并且每个保持器通过弹簧偏置的楔被推向主体部分的内表面。 条形引导构件可与保持件可调节地连接,并且可在加工到主体部分的内表面中的凹槽中滑动。 通过将相应的楔移动离开保持器并且随后通过主体部分的轴向移动保持器使得刀片可以从定位销上提离,可以去除或倒置刀片。 保持器和引导构件具有配合表面,保持器沿着该表面可以滑动,从而使刀片的切割刃朝向或远离主体部分的轴线移动。