Miscellaneous Control Systems (e.g., Ship Propulsion, Machine Tools, Etc.) Patents (Class 74/DIG2)
  • Patent number: 4722237
    Abstract: A pressurized fluid actuated shift bar housing assembly (12) for a change gear transmission (10) is provided having a plurality of shift bars (54, 56, 58), each shift bar having associated therewith a first (108) and a second (110) selectively pressurized and exhausted chamber utilized to axially position the shift bar in a first and second axially displaced position. A third relatively small volume selectively pressurized chamber (140) is utilized to positively axially position each of the shift bars in the nondisplaced axially centered positions thereof.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: February 2, 1988
    Assignee: Eaton Corporation
    Inventor: Joseph H. McNinch, Jr.
  • Patent number: 4208930
    Abstract: An improved spindle control mechanism for a lathe that includes, in preferred form, a rotatable control knob operably related to a plurality of spindle motor control and servo-control switches by a switch drum fixed thereto and operably connected to a spindle transmission through a control shaft by a connector link pivoted in an eccentric position at one end to the control knob and pivoted at the other end to a lever arm fixed to the control shaft. Rotation of the control knob into a forward position simultaneously translates the lathe's transmission into a forward spindle rotation position and starts the spindle drive motor. Rotation of the control knob into an intermediate stop position simultaneously stops the spindle drive motor and activates the spindle servo-control switch (which permits the spindle's rotation speed to be changed by a separate spindle servo-control mechanism, if desired).
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: June 24, 1980
    Assignee: LeBlond Incorporated
    Inventor: Otto Hermann