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    Multiple axle trailers
    2.
    发明授权
    Multiple axle trailers 失效
    多个轴线拖车

    公开(公告)号：US5207443A

    公开(公告)日：1993-05-04

    申请号：US602268

    申请日：1990-11-08

    申请人： George W. Mitchell

    发明人： George W. Mitchell

    IPC分类号： B62D13/02 ,  B62D13/06 ,  B62D63/08

    CPC分类号： B62D13/06 ,  B62D13/02 ,  B62D63/08

    摘要： A multiple axle trailer comprises a chassis pivotally connected to turn substantially horizontally with respect to a sub-chassis and provided with means at its forward end to enable the trailer to be hitched to a towing vehicle, the sub-chassis carrying forward and rear pairs of wheels. An adjustable length steering arm is pivotally connected to the sub-chassis and to the chassis forward of the connection to the sub-chassis. A system of linkages connects the forward wheel king pins with a mounting point which is rotationally fixed with respect to the steering arm and operates to turn the forward wheels from the steering arm so that the trailer tracks the towing vehicle. In a preferred embodiment the mounting point is moveable longitudinally to enable the forward wheels to be moved in the opposite direction during reversing of the trailer.

    摘要翻译： PCT No.PCT / GB89 / 00465 Sec。 371日期1990年11月8日第 102（e）日期1990年11月8日PCT 1989年3月5日PCT公布。 公开号WO89 / 10866 日本特许公报1989年11月16日。多轴拖车包括枢转地连接以相对于副底盘基本上水平地转动的底架，并且在其前端设置有使拖车能够与牵引车辆相连的装置， 底盘承载前后两对车轮。 可调节长度的转向臂可枢转地连接到副机架和与底盘连接的前方的机箱。 联动系统将前轮主轴销与相对于转向臂旋转固定的安装点相连接，并且操作以使前轮从转向臂转动，使得拖车跟踪牵引车辆。 在优选实施例中，安装点可纵向移动，以使倒车时可以沿相反方向移动前轮。

    Pocket joint cutter system
    3.
    发明授权
    Pocket joint cutter system 失效
    袖口切割系统

    公开(公告)号：US5375636A

    公开(公告)日：1994-12-27

    申请号：US29857

    申请日：1993-03-11

    申请人： Donald R. Bosten ,  Earl R. Clowers ,  Daniel P. Wall ,  George W. Mitchell

    发明人： Donald R. Bosten ,  Earl R. Clowers ,  Daniel P. Wall ,  George W. Mitchell

    IPC分类号： B23Q9/00 ,  B25B5/08 ,  B25H1/00 ,  B27C5/10 ,  B27G21/00 ,  B27M1/08 ,  B27C3/00

    CPC分类号： B27M1/08 ,  B23Q9/0092 ,  B25B5/08 ,  B25H1/005 ,  B27C5/10 ,  B27G21/00 ,  Y10T29/5107 ,  Y10T83/75 ,  Y10T83/7513 ,  Y10T83/7533 ,  Y10T83/7593 ,  Y10T83/76

    摘要： A pocket joint cutter system for forming a pocket cut and fastener bore into a workpiece. The pocket cut and fastener bore receives a fastener such as a self-tapping screw which passes through the bore and into a second workpiece for forming a Joint between the two workpieces. The head of the fastener is held within the pocket cut in order to secure the joint. In one preferred form of the present invention, a workpiece system secures the workpiece in a predetermined position and forms the pocket cut and fastener bore into the workpiece. This preferred embodiment further comprises a bench-mounting system coupled to the workpiece system for securing the system to a bench. Using this embodiment of the present invention, the system can be mounted to a bench, and the workpiece can be brought to the system and held in position while the user forms the pocket cut and fastener bore. In an alternate form of the present invention, the system comprises a pocket cutter system for forming the pocket into a surface of the workpiece and a drill guide system for guiding a drill bit in order to form the fastener bore into the pocket at an orientation which is perpendicular to a joint surface of the workpiece. With such a perpendicular orientation of the fastener bore, the two workpieces are less inclined to creep up or down with respect to one another, in contrast to systems which position the fastener bore at a non-perpendicular angle to the joining interface between the two workpieces.

    摘要翻译： 一种用于将口袋切割和紧固件孔形成工件的口腔联合切割器系统。 口袋切割和紧固件孔接收紧固件，例如穿过孔并进入第二工件的自攻螺钉，用于在两个工件之间形成接头。 紧固件的头部保持在口袋切口内以固定接头。 在本发明的一个优选形式中，工件系统将工件固定在预定位置，并将口袋切割和紧固件孔形成工件。 该优选实施例还包括联接到工件系统的台架安装系统，用于将系统固定在工作台上。 使用本发明的这个实施例，该系统可以安装在工作台上，并且当使用者形成口袋切割和紧固件孔时，可将工件带到系统并保持就位。 在本发明的替代形式中，该系统包括用于将凹坑形成到工件的表面中的凹槽切割器系统和用于引导钻头的钻子引导系统，以便以定向方式将紧固件孔形成到凹槽中 垂直于工件的接合面。 通过紧固件孔的这种垂直取向，相对于将紧固件孔与两个工件之间的接合界面成非正交角的系统相反，两个工件相对于彼此而言较少地向上或向下爬行或倾斜 。

    Picosecond multi-harmonic fourier fluorometer
    5.
    发明授权
    Picosecond multi-harmonic fourier fluorometer 失效
    皮秒级多谐波傅里叶荧光计

    公开(公告)号：US4937457A

    公开(公告)日：1990-06-26

    申请号：US309251

    申请日：1989-02-10

    申请人： George W. Mitchell

    发明人： George W. Mitchell

    IPC分类号： G01J3/443 ,  G01N21/64

    CPC分类号： G01N21/6408

    摘要： A frequency domain spectrofluorometer employing extrinsically modulated DC light sources or intrinsically modulated laser pulse trains, containing multiple, harmonically related, phase-locked frequencies for exciting a fluorescent sample. High frequency light emissions of the excited sample are simultaneously cross-correlated with multiple, harmonically related, phase-locked R-F frequencies to produce workable low frequency electrical detector signals having the same phase and modulation characteristics as the multiple frequency sample light emissions. The detector signals are digitized in a computer and transformed from time to frequency domain by complex fast fourier transforms to extract the phase and modulation data for all frequencies of the sample light emissions. This data is displayed simultaneously on the visual presentation screen of the computer.

    摘要翻译： 一种使用调制外部调制的DC光源或本征调制的激光脉冲串的频域分光荧光计，其包含多个谐波相关的用于激发荧光样品的锁相频率。 激发的采样的高频发光与多个谐波相关的锁相R-F频率同时交相关，以产生具有与多频率采样光发射相同的相位和调制特性的可工作的低频电检测器信号。 检测器信号在计算机中被数字化，并通过复杂的快速傅立叶变换从时域到频域变换，以提取样本光发射的所有频率的相位和调制数据。 该数据在计算机的视觉呈现屏幕上同时显示。