Magnetic discs having metal support and a non-magnetic layer
    7.
    发明授权
    Magnetic discs having metal support and a non-magnetic layer 失效
    具有金属支撑和非磁性层的磁盘

    公开(公告)号:US3959553A

    公开(公告)日:1976-05-25

    申请号:US414331

    申请日:1973-11-09

    摘要: The invention relates to magnetic discs in which first a non-magnetic intermediate layer and then the magnetic coating are applied by conventional methods to an aluminum disc. The intermediate layer applied to the non-magnetic metallic carrier disc is a hard non-magnetic coating which can be polished and which consists of a dispersion of a pulverulent mixture of finely divided inorganic non-magnetic pigments having a Mohs' hardness of at least 7 in a binder which can be cured and which provides firm cohesion of the pigment particles and good adhesion thereof to the non-magnetic base disc, the pigment mixture containing at least 3 percent by weight of corundum powder having a particle size of from about 1 to 20.mu.u. Magnetic discs with very thin magnetic coatings which possess good magnetic and mechanical properties and whose thickness varies only minimally are thus produced in a simple manner.

    摘要翻译: 本发明涉及磁盘,其中首先将非磁性中间层然后通过常规方法将磁性涂层施加到铝盘上。 施加到非磁性金属载体盘的中间层是可以抛光的硬质非磁性涂层,其由具有莫氏硬度至少为7的细分的无机非磁性颜料的粉末混合物的分散体组成 在可固化的粘合剂中,其提供颜料颗粒的牢固粘合和对非磁性基盘的良好粘附性,所述颜料混合物含有至少3重量%的刚玉粉末,其具有约1至 20亩 因此,以简单的方式制造具有良好磁性和机械性能并且其厚度仅最小程度变化的非常薄的磁性涂层的磁盘。

    Electric hand machine tool, and rotatable handle or appendixes
    9.
    发明授权
    Electric hand machine tool, and rotatable handle or appendixes 失效
    电动手动工具,可旋转手柄或附件

    公开(公告)号:US5407381A

    公开(公告)日:1995-04-18

    申请号:US971866

    申请日:1993-05-10

    CPC分类号: B24B23/028 B25F5/02

    摘要: In an electric hand machine tool, particularly an angle grinding machine, for the purpose of ergonomic handling the handle, together with the switch bar, is designed to be rotatable, relative to the tool mounting on the gear head (11). For the rapid, problem-free changing of the position of the handle relative to the tool mounting, the handle (12) can be locked against rotation on the motor casing, containing the electric drive, in at least two turned positions by a manually operable locking device, and can be clamped on the motor casing by a manually operable clamp device. In a preferred embodiment the locking device (40) and clamp device are coupled together by constraint and are operated simultaneously by means of a single tightening lever.

    摘要翻译: 在电动手动工具,特别是角磨机中,为了符合人体工程学处理的目的,手柄与开关杆一起被设计为相对于安装在齿轮头(11)上的工具可旋转。 为了快速,无故障地改变手柄相对于工具安装的位置,手柄(12)可以通过手动操作的方式在至少两个转动位置中被锁定以防止包含电动驱动的马达壳体上的旋转 锁定装置,并且可以通过手动操作的夹紧装置夹紧在电动机壳体上。 在优选实施例中,锁定装置(40)和夹紧装置通过约束而联接在一起,并且通过单个紧固杆同时操作。

    Device for magnetically orienting the magnetizable particles or magnetic
recording media in a preferred direction
    10.
    发明授权
    Device for magnetically orienting the magnetizable particles or magnetic recording media in a preferred direction 失效
    用于在优选方向上磁化定向可磁化颗粒或磁记录介质的装置

    公开(公告)号:US4382244A

    公开(公告)日:1983-05-03

    申请号:US242560

    申请日:1981-03-11

    IPC分类号: G11B5/845 H01F7/20

    CPC分类号: G11B5/845

    摘要: A device for magnetically orienting the magnetizable particles of magnetic recording media in a preferred direction, which media are obtained by applying a coating of anisotropically magnetic particles finely dispersed in a solution of an organic binder system and conventional additives to a non-magnetic base, and subsequently solidifying the coating, by the action, on the still fluid coating, of the magnetic fields produced by two E-shaped electromagnets arranged symmetrically with respect to, and in mirror-image relationship to, the plane of the said coating.

    摘要翻译: 一种用于沿优选方向磁性取向磁记录介质的可磁化颗粒的装置,所述介质通过将微分散在有机粘合剂体系和常规添加剂的溶液中的各向异性磁性颗粒的涂层施加到非磁性基底而获得,以及 随后通过对所述涂层的平面相对于所述涂层的平面和镜像关系对称地布置的两个E形电磁体产生的磁场,在静止流体涂层上固化涂层。