Method and apparatus for extruding a burred edge of a hole in a metal
sheet
    1.
    发明授权
    Method and apparatus for extruding a burred edge of a hole in a metal sheet 失效
    用于在金属板中挤出孔的毛边的方法和装置

    公开(公告)号:US4213323A

    公开(公告)日:1980-07-22

    申请号:US859644

    申请日:1977-12-12

    IPC分类号: B21C37/29 B21D19/08 B21D22/00

    CPC分类号: B21D19/08 B21C37/292

    摘要: Method and apparatus for extruding burr holes in a metal sheet, in which a punch with a conical end portion and adjoining cylindrical portion of a diameter greater than the inner burr diameter is passed through the burr. The conical end portion has a half apex angle between 10.degree. and 20.degree., and the axial length of the cylindrical portion and the coefficient of friction between the cylindrical portion and the burr wall are selected according to a specified relationship.

    摘要翻译: 用于在金属板中挤出毛刺孔的方法和装置,其中具有大于内毛刺直径的直径的锥形端部和相邻圆柱形部分的冲头通过毛刺。 锥形端部具有10°至20°的半顶角,并且根据指定的关系来选择圆柱形部分的轴向长度和圆柱形部分与毛刺壁之间的摩擦系数。

    Color television display tube
    2.
    发明授权
    Color television display tube 失效
    彩色电视显示管

    公开(公告)号:US4876477A

    公开(公告)日:1989-10-24

    申请号:US137050

    申请日:1987-12-23

    IPC分类号: H01J29/02 H01J29/07

    CPC分类号: H01J29/073

    摘要: A color selection electrode (31) for a color television display tube is suspended in the corners of the display window (20) by means of suspension means including a flat resilient element (37). The resilient element (37) is connected to the color selection electrode (31) or to another element of the suspension means by means of a substantially punctiform connection (48). Because of the flexibility of the punctiform connection (48) the suspension means exerts minimal moments on the color selection electrode (31).

    摘要翻译: 用于彩色电视显示管的选色电极(31)通过包括平坦弹性元件(37)的悬挂装置悬挂在显示窗(20)的角部。 弹性元件(37)通过基本上点状的连接(48)连接到选色电极(31)或悬挂装置的另一元件。 由于点状连接(48)的灵活性,悬挂装置在选色电极(31)上施加最小的力矩。

    Connecting rod bearing arrangement
    3.
    发明授权
    Connecting rod bearing arrangement 失效
    连杆轴承布置

    公开(公告)号:US4213659A

    公开(公告)日:1980-07-22

    申请号:US880097

    申请日:1978-02-22

    IPC分类号: F16C3/14 F16C9/04 F16C33/10

    摘要: A bearing arrangement for a connecting rod big end journalled on a crankshaft pin, for lubrication by splash or mist. Adjoining the cylindrical journal on the crankshaft pin and the rod big end, facing generally planar surfaces on the crankshaft and the rod big end have a pattern of shallow lubricant pumping grooves to provide a constant, reliable flow of oil through the bearing. At the opposite end of the connecting rod plain bearing, other plane surfaces may provide either draining grooves or grooves which pump oil outward to an axial bearing surface.

    摘要翻译: 用于连杆大端的轴承装置安装在曲轴销上,用于通过飞溅或雾气润滑。 将曲轴销和圆柱形大端上的圆柱形轴颈连接在曲轴上大致平坦的表面上,并且杆大端具有浅润滑剂泵送槽的图案,以通过轴承提供恒定可靠的油流。 在连杆滑动轴承的相对端,其他平面可以提供将油泵向外泵送到轴向轴承表面的排水槽或槽。