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    • 22. 发明授权
    • Gas sensing signaling system
    • 气体感测信号系统
    • US4390869A
    • 1983-06-28
    • US225097
    • 1981-01-14
    • Peter ChristenPeter Muller
    • Peter ChristenPeter Muller
    • F23N5/24F17D5/02G08B17/117G08B29/04G08B29/06G08B17/10
    • F17D5/02G08B17/117G08B29/04G08B29/06
    • A gas sensing signaling system is provided in which a plurality of gas sensing units are connected over cables with a central station. To permit establishment of threshold levels such that false alarms are rejected while the system still remains sensitive to dangerous conditions and to permit ready supervision and testing of said system, a central station is provided in which timing circuits are included which start the time interval upon sensing of an alarm condition above a lower, or warning threshold level. If the lower warning level signal persists for the timing interval--for example for about one-half minute, a warning signal is given. A higher level signal generates an alarm signal, either immediately or after a much shorter time delay. The circuit includes self-holding circuitry so that, once a sensing unit transmits a sensing signal which persists beyond the previous predetermined warning or alarm time duration, the central station will indicate the respective conditions until manually reset. Besides indication, corrective action, such as energization of ventilation equipment and the like can be controlled. The cabling system preferably operates with predetermined, discrete voltage levels at the respective signal lines which, upon transmission of a warning and/or alarm signal, changes under control of a voltage control circuit in the central station, to permit additionally, by connection of a termination element, to indicate malfunction within the lines or the sensing units by detecting current flow and voltage relationships in the respective lines.
    • 提供了一种气体感测信号系统,其中多个气体感测单元通过电缆与中心站连接。 为了允许建立阈值水平,使得在系统仍然对危险状况保持敏感并允许对所述系统进行准备监督和测试时,假警报被拒绝,提供了一个中心站,其中包括定时电路,其在感测时启动时间间隔 报警条件高于较低或警告阈值水平。 如果较低的警告电平信号持续时间间隔 - 例如大约半分钟,则给出警告信号。 更高电平的信号会立即产生报警信号,或者在短时间延迟之后产生报警信号。 该电路包括自保持电路,使得一旦感测单元传输超过先前预定警告或警报持续时间的感测信号,则中心站将指示相应的状态,直到手动复位。 除了指示之外,还可以控制通风设备的通电等的纠正动作。 布线系统优选地在相应信号线处以预定的离散电压电平工作,在中央站的电压控制电路的控制下,在警报和/或报警信号传输时,其变化,另外通过连接一个 通过检测各行中的电流和电压关系来指示线路或感测单元内的故障。
    • 23. 发明授权
    • Employing a shape memory alloy in a fire alarm temperature sensitive
element
    • 在火灾报警温度敏感元件中使用形状记忆合金
    • US4356478A
    • 1982-10-26
    • US140464
    • 1980-04-17
    • Jurg MuggliPeter Muller
    • Jurg MuggliPeter Muller
    • G01K5/62G08B17/06G08B17/10G08B17/107G08B17/113H01H37/32H01H37/52H01H37/60
    • G08B17/107G08B17/06G08B17/10G08B17/113
    • A fire alarm is provided with a temperature sensitive element formed of a shape memory alloy, which following cold working, upon heating to a critical temperature, typically for instance about 70.degree. C., returns to the original impressed shape and also retains this shape even after subsequent recooling. Due to the movement of the element there is triggered a self-holding alarm signal, either directly by closing contacts or indirectly. Resetting of the fire alarm can be accomplished by mechanically cold working the element, or by using two-way shape memory alloys through cooling to a lower temperature threshold which can be below room or ambient temperature. A further beneficial construction is realized by combining the arrangement with a different type of fire detection or sensing element, for instance by arranging a shape memory alloy element in a scattered radiation-smoke detector. Upon reaching a critical temperature, the shape memory alloy element moves into the radiation region, or when used in an ionization fire alarm, the shape memory alloy element screens the radioactive radiation source and reduces the ionic current. Suitable shape memory alloys are, by way of example, nickel 55/titanium 45, or nickel 45/titanium 45/copper 10.
    • 火灾警报器设有由形状记忆合金形成的温度敏感元件,其在冷加工之后,加热到临界温度(通常例如约70℃)时,恢复到原始的压印形状,并且还保持该形状甚至 后续重新冷却。 由于元件的移动,触发自保持报警信号,直接通过闭合触点或间接触发。 火灾报警器的复位可以通过机械冷加工元件或通过冷却至低于室温或室温的较低温度阈值使用双向形状记忆合金来实现。 通过将布置与不同类型的火灾探测或感测元件组合,例如通过在散射辐射 - 烟雾探测器中布置形状记忆合金元件来实现进一步的有益结构。 当达到临界温度时,形状记忆合金元素移动到辐射区域,或者当用于电离火灾报警器时,形状记忆合金元件屏蔽放射性辐射源并降低离子电流。 合适的形状记忆合金是例如镍55 /钛45或镍45 /钛45 /铜10。
    • 27. 发明授权
    • Coiling device for depositing sliver in canisters
    • 用于在筒中放置条子的卷绕装置
    • US4041574A
    • 1977-08-16
    • US611638
    • 1975-09-09
    • Peter Muller
    • Peter Muller
    • B65H54/76B65H54/80
    • B65H54/80B65H2701/31
    • A coiling device for depositing sliver in a canister has a rotary cage having an axis of rotation; a mechanism for rotating the cage; an inlet opening through which the sliver is introduced into the cage; an outlet opening in the cage eccentrically thereof for discharging the sliver in a path orbiting about the cage axis. There is further provided a first calender roll supported in the cage; a drive mechanism connecting the cage with the first calender roll for rotating the first calender roll about its longitudinal axis upon rotation of the cage about the cage axis; a second calender roll supported in the cage on a pivotal shaft mounted in the cage and spaced from the second calender roll. The second calender roll is urged against the first calender roll for generating a clamping force. The second calender roll and the pivotal shaft form part of a pivotal unit. The two rolls constitute a cooperating calender roll pair between the inlet opening and the outlet opening for drawing, by means of the clamping force, the sliver through the inlet opening and advancing it through the outlet opening. The axis of the pivotal shaft is so oriented in the cage that the centrifugal force generated by the rotation of the cage and exerted on the pivotal unit has a sole direction of action which leaves the clamping force unaffected.
    • 用于在筒中放置条子的卷取装置具有带有旋转轴线的旋转笼; 用于旋转笼的机构; 入口开口,将条子引入笼中; 偏心地在其中的保持架中的出口开口用于沿着围绕保持架轴线的轨道中排出纱条。 还提供了一种支撑在笼中的第一压光辊; 驱动机构,其将所述保持架与所述第一压延辊连接,用于当所述保持架围绕所述保持架轴线旋转时,使所述第一压延辊围绕其纵向轴线旋转; 第二压延辊被支撑在安装在保持架中并与第二压延辊隔开的枢轴上的保持架中。 第二压延辊被推靠在第一压延辊上以产生夹紧力。 第二压延辊和枢转轴构成枢转单元的一部分。 两个辊在入口开口和出口之间构成一个配合的压延辊对,借助于夹紧力将纱条通过入口开口拉出并通过出口开口。 枢转轴的轴线在保持架中被定向,使得由保持架旋转并施加在枢转单元上的离心力具有唯一的使夹紧力不受影响的作用方向。