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130 条记录 (耗时 0.012 秒)

    Cushion mounting in punch press
    58.
    发明授权
    Cushion mounting in punch press 失效
    冲孔机中的垫圈安装

    公开(公告)号：US3580558A

    公开(公告)日：1971-05-25

    申请号：US3580558D

    申请日：1969-01-08

    申请人： BLISS CO

    发明人： HELRIGEL ROBERT A ,  BROWNELL JAMES R ,  WARD RODERICK K ,  KEITHLEY HARRY E

    IPC分类号： B21D24/02

    CPC分类号： B21D24/02

    摘要： A machine press bed assembly including an air cushion seated in the press bed, air input means integral with the press bed floor, aperture means in an end wall of the cushion accommodating said air input means, and holddown means penetrating the press bed sides engaging the cushion, the cushion being removable from said press bed by disengaging the holddown means.

    Multispeed timing device
    59.
    发明授权
    Multispeed timing device 失效
    多时钟设备

    公开(公告)号：US3568429A

    公开(公告)日：1971-03-09

    申请号：US3568429D

    申请日：1969-01-03

    申请人： BLISS CO

    发明人： LILLE RICHARD A DE

    IPC分类号： G04F3/06 ,  G04F3/02

    CPC分类号： G04F3/06

    摘要： A TIMER HAS A MANUALLY OPERABLE DIAL FOR SETTING THE TIMER TO RUN FOR A PREDETERMINED PERIOD OF TIME. THE TIMER INCLUDES AN ELECTRIC MOTOR FOR DRIVING THE DIAL BACK TO A ZERO SETTING POSITION. THE MOTOR DRIVES THE DIAL THROUGH A PLURALITY OF SELECTIVE DRIVE PATHS. THE TIMER INCLUDES A SHIFT MEANS COOPERABLE WITH THE DIAL AND WITH THE DRIVE PATHS. WHEN THE DIAL IS SET FOR SHORT TIME PERIODS, A HIGH SPEED DRIVE PATH IS AUTOMATICALLY ENGAGED. WHEN THE DIAL IS SET FOR LONG TIME PERIODS A LOW SPEED DRIVE PATH IS ENGAGED. THE TIMER AUTOMATICALLY PROVIDES MORE ACCURATE TIMING OF SHORT TIME PERIODS.