Patents Assigned to Bryant Grinder Corporation
  • Patent number: 3939944
    Abstract: The disclosure relates in general to an oil-mist lubrication system, and more particularly to the propagation of a mixture of oil-mist to bearings of a spindle, wheelhead, or the like by means of a blender-distributor unit. A first controlled amount of air from an air supply unit is fed through an oil-mist unit to produce a controlled high density oil mist. A second controlled amount of air from the air supply unit bypasses the oil-mist unit and is fed into an air chamber of a blender distributor unit. The high density oil mist is also fed into an oil-mist chamber of the blender distributor unit. A plurality of blending nozzles in the distributor unit extend from the exit side of the air chamber. A like plurality of tubes extend from the exit side of the oil-mist chamber of the distributor unit, each tube mounted coaxially within a respective nozzle whereby the blending area of the exit end of each tube within the nozzle produces a lower density oil-mist to be carried to the bearings.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: February 24, 1976
    Assignee: Bryant Grinder Corporation
    Inventors: William A. Mitchell, Charles V. Thayer
  • Patent number: 3940675
    Abstract: A lateral feed position system for a single slide grinder or the like wherein a wheel spindle is displaced between a sequence of preset end points. The end points are input from decade switches as position commands and compared to a current position count in a digital comparator unit. An oscillator is energized to apply up or down count signals to the comparator depending on the result of the comparison. The same signals are applied to a stepper motor. Actual displacement signals from a shaft angle encoder are compared to the position commands to advise a sequencer that the spindle is "in position" so that the next command can be input. Means are provided to adjust the actual position counts to compensate for wheel wear. Specific circuits are disclosed.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: February 24, 1976
    Assignee: Bryant Grinder Corporation
    Inventor: Roger L. Schroeder
  • Patent number: 3939453
    Abstract: A sequence controller for an automatic grinding machine or the like for controlling a sequence of machine functions and for providing a display of digital information which explicitly directs an operator through manual or semi-manual functions and which also provides diagnostic information. Diagnostic information is displayed on two levels, the first level is defined as "input code" which represents signals generated by a programmable controller to define the machine requirements due at any given time. These signals are normally compared with "requirements met" signals from input devices to determine whether or not the sequence should be advanced. The second level of signals are termed "cycle step commands" which represent signals sequentially generated in the controller to actuate specific machine functions. The controller may advance sequentially or non-sequentially. Circuit boards are correlated in physical location to cycle step command codes.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: February 17, 1976
    Assignee: Bryant Grinder Corporation
    Inventor: Roger L. Schroeder
  • Patent number: 3932960
    Abstract: A single-slide, mechanically and electrically programmed grinding machine comprising a rigid enclosed base, a fixed workhead assembly on the base, a pair of parallel slidebars mounted on the base, and a wheelslide assembly mounted on the base for longitudinal displacement thereover. Longitudinal wheelslide displacement is mechanically controlled by a motor-driven cam bearing against a spring-biased lever pivoted to the base and connected to the wheelslide via a rod. Lateral feed is independently electrically controlled by a motor-driven nut and screw shaft assembly which angularly displaces the wheelslide assembly relative to one of the slidebars and about the centerline of the other slidebar. An eccentric and variable-position spacer is provided for reciprocating the wheelslide during a grind operation. A thermally-stable base configuration is disclosed. Part load and unload apparatus, all mechanically programmed, are also disclosed.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: January 20, 1976
    Assignee: Bryant Grinder Corporation
    Inventors: Hugh T. Edgar, John W. Lovely