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    Turntable platter for record players
    2.
    发明公开
    Turntable platter for record players 失效
    PlattentellerfürPlattenspieler。

    公开(公告)号：EP0073491A2

    公开(公告)日：1983-03-09

    申请号：EP82107865.6

    申请日：1982-08-26

    申请人： SOCIETA' ITALIANA VETRO - SIV - S.p.A.

    发明人： Massarelli, Liberto ,  Capriotti, Luigi

    IPC分类号： G11B3/60 ,  G11B3/58

    CPC分类号： G11B3/58 ,  G11B19/2018

    摘要： The applicant has devised a turntable platter for record players, consisting of two layers of glass and plastic lying one on top of the other. More precisely the plastic layer can be of a thermoplastic and/or thermosetting material such as polycarbonate, polyacrylic, polystyrene or otherwise.
    The glass guarantees flatness, rigidity and pleasant appearance of the platter, such features not always being obtainable from the already known metal platters, while the plastic, for its part, guarantees the light weight associated with such material.
    The glass-plastic combination in the turntable platter represents considerable progress in the particular industrial field as it guarantees reaching several results, including, most especially, the absorption of spurious vibrations, and secondly, optimum sound reproduction quality.
    More especially, the first of these advantages is such that it is no longer necessary to use mats hitherto added to the already well known turntable platters.
    The two glass (5) and plastic (2) layers can be joined together by means of adhesive (3) or pushed together along the edges; they can also be of different sizes and shapes.
    It is advisable that the turntable platter obtained from said layers be provided with an upper layer (6), preferably less than one micron thick, of conductive material, either dielectric or metallic, in order to allow earthing the platter.
    The outer rim of the platter is transparent in order to permit immediate visibility of the indicator lamp used by the stroboscopic device, hence it is not necessary to use an intermediate light deviating prism.

    摘要翻译： 申请人为记录员设计了一个转盘，由两层玻璃和塑料组成，一层位于另一层之上。 更准确地说，塑料层可以是热塑性和/或热固性材料，例如聚碳酸酯，聚丙烯酸，聚苯乙烯或其它材料。 ...玻璃保证了盘子的平整度，刚度和美观的外观，这些功能并不总是可以从已知的金属盘子获得，而塑料则保证与这种材料相关的重量。 ... 转盘中的玻璃 - 塑料组合在特定工业领域取得了相当大的进步，因为它保证了几个结果，包括最特别的是吸收寄生振动，其次是最佳的声音再现质量。 更具体地，这些优点中的第一个使得不再需要使用迄今添加到已知的转台盘中的垫。 两个玻璃（5）和塑料（2）层可以通过粘合剂（3）连接在一起，或者沿着边缘被一起推入。 它们也可以具有不同的尺寸和形状。 ...从所述层获得的转盘可以设置有上层（6），优选小于1微米厚的电介质或金属的导电材料，以允许接地。 ... 盘片的外缘是透明的，以便允许快速观察由频闪装置使用的指示灯，因此不需要使用中间偏光棱镜。

    Turntable platter for record players
    5.
    发明公开
    Turntable platter for record players 失效
    用于记录播放器的可伸缩平板电脑

    公开(公告)号：EP0073491A3

    公开(公告)日：1983-04-06

    申请号：EP82107865

    申请日：1982-08-26

    申请人： SOCIETA' ITALIANA VETRO - SIV - S.p.A.

    发明人： Massarelli, Liberto ,  Capriotti, Luigi

    IPC分类号： G11B03/60 ,  G11B03/58

    CPC分类号： G11B3/58 ,  G11B19/2018

    摘要： The applicant has devised a turntable platter for record players, consisting of two layers of glass and plastic lying one on top of the other. More precisely the plastic layer can be of a thermoplastic and/or thermosetting material such as polycarbonate, polyacrylic, polystyrene or otherwise. The glass guarantees flatness, rigidity and pleasant appearance of the platter, such features not always being obtainable from the already known metal platters, while the plastic, for its part, guarantees the light weight associated with such material. The glass-plastic combination in the turntable platter represents considerable progress in the particular industrial field as it guarantees reaching several results, including, most especially, the absorption of spurious vibrations, and secondly, optimum sound reproduction quality. More especially, the first of these advantages is such that it is no longer necessary to use mats hitherto added to the already well known turntable platters. The two glass (5) and plastic (2) layers can be joined together by means of adhesive (3) or pushed together along the edges; they can also be of different sizes and shapes. It is advisable that the turntable platter obtained from said layers be provided with an upper layer (6), preferably less than one micron thick, of conductive material, either dielectric or metallic, in order to allow earthing the platter. The outer rim of the platter is transparent in order to permit immediate visibility of the indicator lamp used by the stroboscopic device, hence it is not necessary to use an intermediate light deviating prism.

    A glass/polymer resin composite article of improved acoustic insulation and process of manufacture thereof
    7.
    发明公开
    A glass/polymer resin composite article of improved acoustic insulation and process of manufacture thereof 失效
    Verbundwerkstoff Glas / Polymerharz mitGeräuschdämpfungund Verfahren zu seiner Herstellung。

    公开(公告)号：EP0532478A2

    公开(公告)日：1993-03-17

    申请号：EP92830474.0

    申请日：1992-09-10

    申请人： SOCIETA' ITALIANA VETRO - SIV - S.p.A.

    发明人： Massarelli, Liberto ,  Capriotti, Luigi

    IPC分类号： B32B17/10 ,  B29C39/12 ,  C03C27/12

    CPC分类号： B32B17/10706 ,  B32B17/10036 ,  B32B17/10917

    摘要： A glass/polymer resin composite article with improved properties of acoustic insulation comprises a pair of sheets of glass with an intermediate layer of sound-absorbing polymer resin made from a monomer composition comprising 5 to 50% of an aliphatic polyurethane and 15 to 85% of a mixture of photo polymerizable monomers. The article has the same transparency as glass, it is resistant to breakage and it is adapted to be used as glazing for vehicles and buildings.

    摘要翻译： 具有改善的隔音性能的玻璃/聚合物树脂复合制品包括一对玻璃，其具有由包含5至50％的脂族聚氨酯和15至85％的单体组合物制成的吸声聚合物树脂的中间层 光聚合单体的混合物。 该物品具有与玻璃相同的透明度，耐破坏，适用于车辆和建筑物的玻璃窗。