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5 条记录 (耗时 0.014 秒)

    Mechanical counterbalance
    1.
    发明授权
    Mechanical counterbalance 失效
    机械平衡

    公开(公告)号：US4277044A

    公开(公告)日：1981-07-07

    申请号：US73471

    申请日：1979-09-07

    申请人： W. Duane Hamilton

    发明人： W. Duane Hamilton

    IPC分类号： F16M11/04 ,  F16M13/00

    CPC分类号： F16M11/2064 ,  F16M2200/044

    摘要： An instrument supporting arm is consistently uniformly counterbalanced over its entire excursion of adjustment with springs and spring holder guided by cams which alter arm length-to-moment ratio and force angles to compensate for spring extension forces.

    摘要翻译： 仪器支撑臂在其由凸轮引导的弹簧和弹簧座的整个偏移范围内始终均匀地平衡，这改变了臂的长度比和力角度以补偿弹簧伸展力。

    Drive mechanism
    2.
    发明授权
    Drive mechanism 失效
    驱动机构

    公开(公告)号：US4288710A

    公开(公告)日：1981-09-08

    申请号：US124193

    申请日：1980-02-25

    申请人： W. Duane Hamilton

    发明人： W. Duane Hamilton

    IPC分类号： H02K7/06 ,  H02K37/00

    CPC分类号： H02K7/06

    摘要： Driving an object along a given path with a standard pitch lead screw operated by a stepping motor. Adjustment is provided for accurately completing, with full motor steps, various excursions of object travel ordinarily requiring less than a full motor step for completion of the travel. The above is accomplished by driving the lead screw askew of the axis of desired object travel.

    摘要翻译： 通过步进电机操作的标准螺距导螺杆沿给定路径驱动物体。 提供了调整，用于在完整的电动机步骤中准确地完成物体行程的各种偏移，通常需要小于完整的电动机步骤以完成行驶。 通过驱动导螺杆歪斜所需物体行程的轴来实现上述。

    Wheelchair
    3.
    发明授权
    Wheelchair 失效
    轮椅

    公开(公告)号：US4489955A

    公开(公告)日：1984-12-25

    申请号：US447987

    申请日：1982-12-08

    申请人： W. Duane Hamilton

    发明人： W. Duane Hamilton

    IPC分类号： A61G5/00 ,  A61G5/10 ,  A61G5/12 ,  A61G5/02

    CPC分类号： A61G5/00 ,  A61G5/1097 ,  A61G5/128 ,  A61G2220/10 ,  A61G5/1075 ,  Y10S297/04

    摘要： A wheelchair, for either street or sports (e.g. racing) use, is comfortable and easy-to-use, lightweight, and may be folded compactly for transportation. A plastic pallet supports a collapsible chair frame, and is mounted to a base frame for adjustment along the base frame to thereby adjust the center of gravity of the wheelchair. The rear drive wheels and the caster-type front wheels are both mounted to the frame for easy removal, utilizing a split-block receiving the spindle or shaft from the wheels. The blocks may be pivoted about axes perpendicular to the axes of rotation of the rear wheels to adjust the camber of the wheels, and--by effecting flexing of a leaf spring to which the blocks are mounted--the toe of the rear wheels may be adjusted.

    摘要翻译： 用于街道或运动（例如赛车）使用的轮椅是舒适且易于使用的，轻便的，并且可以被紧凑地折叠以用于运输。 塑料托盘支撑可折叠的椅子框架，并且安装到基座框架上以沿着基架调节，从而调整轮椅的重心。 后驱动轮和脚轮式前轮都安装在框架上以便于拆卸，利用从车轮接收主轴或轴的分割块。 可以围绕垂直于后轮的旋转轴线的轴线枢转，以调节车轮的外倾角，并且通过实现安装块的板簧的弯曲，可以调节后轮的脚趾 。

    Lens generating apparatus
    5.
    发明授权
    Lens generating apparatus 失效
    镜头发生装置

    公开(公告)号：US4271636A

    公开(公告)日：1981-06-09

    申请号：US77681

    申请日：1979-09-21

    申请人： W. Duane Hamilton

    发明人： W. Duane Hamilton

    IPC分类号： B24B13/00

    CPC分类号： B24B13/00

    摘要： Generating lens surfaces to true toric or spherical shapes with lens surfacing machinery employing a dual pivoting system and fixed radius cutter. Lenses are fed across the cutter along a first circular path developing the spherical component of a toric surface while the cutter is simultaneously swept orthogonally across the lens along a second circular path which develops the cylindrical component of the toric surface. Various combinations of spherical and cylindrical curvatures are produced by adjustment of radii of first and second circular paths.

    摘要翻译： 使用双重枢转系统和固定半径切割器，将透镜表面生成真实的复曲面或球形，并具有透镜表面机械。 沿着第一圆形路径将镜片沿着展开圆锥形表面的球形部件的第一圆形路径进给，同时刀具同时沿着形成复曲面的圆柱形部件的第二圆形路径沿透镜正交扫过。 通过调节第一和第二圆形路径的半径来产生球形和圆柱形曲率的各种组合。