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    Sound reproducing device incorporating a device for selecting a desired record groove
    41.
    发明授权
    Sound reproducing device incorporating a device for selecting a desired record groove 失效
    包括用于选择所需记录槽的装置的声音再现装置

    公开(公告)号：US4361882A

    公开(公告)日：1982-11-30

    申请号：US209910

    申请日：1980-11-24

    申请人： Katsumi Watanabe

    发明人： Katsumi Watanabe

    IPC分类号： G10K9/00 ,  G11B3/00 ,  G11B3/095 ,  G11B33/06 ,  G11B7/22

    CPC分类号： G11B33/06 ,  G11B3/001

    摘要： Before starting a sound reproduction, a distance between a record disc and a sound transmitting member which is disposed on a tone arm for pushing the tone arm, is held by a movable blade of an electromagnetic actuator.When a rotary switch attached beneath the record disc rotates by the rotation of the record disc and contacts one of a plurality of fixed contacts which have been positioned to satisfy a predetermined locational relationship with respect to a portion on which the pickup descends before it enters the starting point of the selected record groove, the electromagnetic actuator is energized to release its support of the sound transmitting member or the record disc.By virtue of this construction the tone arm of the pickup is engaged with the specific record groove of the record disc at a point before it reaches the starting point of the specific record groove.Consequently this sound reproducing device assures correct and firm sound reproduction, particularly suitable for selective sound reproduction of a record disc having a plurality of record grooves.

    摘要翻译： 在开始声音再现之前，设置在用于按压音调臂的音调臂上的记录盘和声音传送部件之间的距离由电磁致动器的可动刀片保持。 当安装在记录盘下方的旋转开关通过记录盘的旋转而旋转时，接触多个固定触点中的一个固定触点，这些固定触点已经被定位成相对于拾取器进入其中的部分之前达到预定的位置关系 所选择的记录槽的起点，电磁致动器被通电以释放其对声音传输构件或记录盘的支撑。 通过这种结构，拾音器的音臂在到达特定记录槽的起点之前的一点处与记录盘的特定记录槽接合。 因此，这种声音再现装置确保正确和牢固的声音再现，特别适用于具有多个记录槽的记录盘的选择性声音再现。

    Electric horn
    42.
    发明授权
    Electric horn 失效

    公开(公告)号：US3886546A

    公开(公告)日：1975-05-27

    申请号：US35103773

    申请日：1973-04-13

    申请人： NIPPON DENSO CO

    发明人： UEDA MITSURU

    IPC分类号： G10K9/15 ,  G10K9/00 ,  G08B3/00

    CPC分类号： G10K9/15

    摘要： An electric horn is provided which comprises a vortical acoustic transformer having a sound inlet port, an electromagnetic vibrating mechanism disposed at a central portion of the transformer and having an armature, a diaphragm mounted, along with the armature, on the transformer so as to enclose the sound inlet port, and a vibrator fixed to the diaphragm at a position opposite to the transformer.

    Sound radiation system
    43.
    发明授权
    Sound radiation system 失效
    声辐射系统

    公开(公告)号：US3862366A

    公开(公告)日：1975-01-21

    申请号：US27951572

    申请日：1972-08-10

    申请人： ELEKTROAKUSZTIKAI GYAR

    发明人： HUSZTY DENES ,  ILLENYI ANDRAS ,  NEMETH ILONA MAGOS NEE ,  SZABADOS KAROLY

    IPC分类号： G10K9/00 ,  H04R1/26 ,  H04R1/32 ,  H04R1/02

    CPC分类号： H04R1/323 ,  H04R1/26

    摘要： A sound radiator comprising at least four high frequency loudspeakers with their axes intersecting in zigzag relationship, and a single low frequency loudspeaker whose center is at a distance not more than 1.5 times the diameter of the low frequency loudspeaker from the center of that high frequency loudspeaker which is farthest from the low frequency loudspeaker. The wave length of the crossover frequency of the low frequency and high frequency loudspeakers is not more than the smallest dimension of the housing for the unit measured in a plane perpendicular to the axis of the low frequency loudspeaker. A perforated obstacle is disposed in front of part of the high frequency loudspeakers.

    摘要翻译： 一种声辐射器，包括至少四个高度相对于之字形关联的高频扬声器的扬声器，以及单个低频扬声器，其中心距离该高频扬声器中心的低频扬声器的直径不超过1.5倍 它距离低频扬声器最远。 低频和高频扬声器的交叉频率的波长不大于在与低频扬声器的轴垂直的平面中测量的单元的壳体的最小尺寸。 穿孔障碍物设置在部分高频扬声器的前面。

    Locomotive warning horn
    44.
    发明授权
    Locomotive warning horn 失效
    LOCOMOTIVE WARNING HORN

    公开(公告)号：US3710752A

    公开(公告)日：1973-01-16

    申请号：US3710752D

    申请日：1971-01-11

    申请人： MERCOR CORP

    发明人： HEEHLER A ,  TAYLOR G

    IPC分类号： G10K9/04 ,  G10K9/00

    CPC分类号： G10K9/04

    摘要： A sound device particularly adapted for use as a locomotive warning horn characterized by a housing having a vibrator means for converting a constant flow of a gaseous medium into a pulsating flow which is removed from the housing through an outlet passageway having a first portion and a second portion in communication with a horn which extends at an angle to the first portion so that foreign matter entering the horn or resonator is not accumulated on the vibrator means. In one of the preferred embodiments, the outlet passageway of the device has a first portion which merges with a second and third portion both of which extend at an angle to the first portion and each of the second and third portions has a horn associated therewith so that the single vibrator means drives or produces the pulsating flow for both horns or resonators. In this embodiment, various means are utilized to insure a balanced flow of the pulsating gaseous medium through each of the horns, these means can be partitions for splitting the flow, means for restricting or impeding the flow into one portion such as a choke or a passageway with a curved path, a deflecting block at the junction of the portions or an inspirator which changes the boundary layer characteristics of one of the resonators to vary the impedance to the flow through the horn. One or more of these particular means can be utilized in the sound device to insure a balance in the flow therethrough to provide substantially equal strengths in the sounds emitted from each of the two resonators.

    摘要翻译： 一种特别适合用作机车警示喇叭的声音装置，其特征在于具有振动器装置的壳体，所述振动器装置用于将气体介质的恒定流量转换成通过具有第一部分和第二部分的出口通道从壳体移除的脉动流 与与第一部分成一定角度延伸的喇叭连通，使得进入喇叭或谐振器的异物不会积聚在振动器装置上。 在优选实施例之一中，装置的出口通道具有与第二和第三部分合并的第一部分，第二部分和第三部分两者均以与第一部分成一定角度延伸，并且每个第二部分和第三部分具有与其相关联的角部 单个振动器意味着驱动或产生用于喇叭或谐振器的脉动流。 在该实施例中，使用各种手段来确保脉动气体介质通过每个喇叭的平衡流动，这些装置可以是用于分流流动的隔板，用于限制或阻碍流入一个部分的装置，例如扼流圈或 具有弯曲路径的通道，在部分的接合处的偏转块或者改变谐振器中的一个的边界层特性的灵感器，以改变对通过喇叭的流动的阻抗。 这些特定装置中的一个或多个可以用在声音装置中以确保流过其中的平衡，以在从两个谐振器中的每一个发出的声音中提供基本上相等的强度。