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| Number | Title | Issue Date |
| 4524547 | Automatic double disc grinder control cycle A surface grinding machine comprises a wheelhead assembly including an abrasive disc having a flat stock removal surface and a means for supporting the wheelhead assembly for movement in an axial direction. A microprocessor controller defines a selected i... | 06/25/1985 |
| 4523409 | Automatic contour grinding system An automatic contour grinding system for smoothing a surface, including: a robot; a robot controller; a grinder device mounted to the robot; means for monitoring the grinding action of the grinder device; means, responsive to the means for monitoring, for... | 06/18/1985 |
| 4505074 | Grinding machine control system for intermittently measuring workpiece size A grinding machine control system has a position detecting device for generating a position signal indicative of the position of a cutting table which is driven at a variable speed by a cutting motor during a grinding process, and a size measuring device ... | 03/19/1985 |
| 4502251 | Cut-off saws My invention is particularly adapted to saws for cutting metal, and especially abrasive disc saws, wherein the saw is fixed to a shaft which is rotatable within a bearing located at one end of a rocker arm. A drive motor, preferably an electric motor, is ... | 03/05/1985 |
| 4490946 | Grinding wheel feeder in grinding machines Wear on the dressing tool is derived from an amount of movement that a grinding wheel is advanced until issuance of a signal from a sizing device for correcting data on the radius of the grinding wheel. The data on the radius of the grinding wheel is thus... | 01/01/1985 |
| 4468892 | Grinding machine An improved grinding wheel support arrangement in a grinding machine. The support arrangement includes a support frame on which a support member is pivotally mounted at one of its free ends. A support leg is pivotally mounted on the support member at the ... | 09/04/1984 |
| 4461125 | Control circuit for an apparatus for adjusting and dressing a grinding wheel A control circuit contains, instead of the otherwise conventional feeler or scanner contact, a displacement pick-up or displacement path transmitter which delivers pulsating signals representative of the irregularities of the scanned grinding wheel. The e... | 07/24/1984 |
| 4441103 | Unusual vibration transducer apparatus in machine tools By mounting unusual vibration transducer apparatus consisting of a piezo-electric vibration detecting member, a pre-amplifier including a gain adjust knob, a comparator including level adjust knob, a monostable multivibrator including a pulse width adjust... | 04/03/1984 |
| 4428162 | Grinding machine and control for removing burrs or fins from workpieces such as castings A method and a device for the automatic removal of burrs or fins from workpieces such as castings by a grinding process. A feed for moving the workpiece perpendicular to the grinding wheel radius is provided for grinding along the length of the burr. A se... | 01/31/1984 |
| 4370835 | Working pressure control mechanism A working pressure control mechanism for lapping, honing, and grinding machines having a rotatably mounted shaft bearing the tool within an axially translatable housing such that the shaft is carried along by the housing in the direction of the tool advan... | 02/01/1983 |
| 4368596 | Feed safety apparatus for movable member A feed safety apparatus for a movable member slidably supported on a stationary bed of a machine tool. A feed device moves the movable member at various speeds. A hydraulic cylinder is fixedly mounted on the movable member and includes a piston slidably r... | 01/18/1983 |
| 4363195 | Internal grinding machine with wedge feed mechanism A grinding machine has a base and a pair of work support bars journalled within the base. A table is journalled with the support bars in such fashion that it is axially movable along the parallel spaced bars and pivotable around one bar central axis while... | 12/14/1982 |
| 4324073 | Process for automatic feed of steady jaws The disclosure relates to a process for the continuous, automatic feed of at least one jaw of a steady for supporting a workpiece, for example a shaft or crank shaft with its axis in the desired position on grinding the workpiece outer face and is more sp... | 04/13/1982 |
| 4294045 | Grinding machine with a sizing device A grinding machine wherein a wheel support carrying a grinding wheel is moved along a straight path extending at an acute angle to an axis of rotation of a workpiece. For the subsequent simultaneous grindings of a cylindrical surface and a shoulder side s... | 10/13/1981 |
| 4292769 | Balancing and monitoring apparatus A device for balancing rotating bodies including a sensing arrangement for sensing the out of balance of the rotating body and for abrasion tool at a frequency corresponding to the speed of the rotating member so as to remove material from the rotating me... | 10/06/1981 |
| 4292766 | Method and apparatus for grinding a workpiece An improved grinding method and apparatus is advantageously used to sequentially grind the pins of a crankshaft. During the grinding of each crankpin, the pin is supported by a steadyrest. During an initial grinding operation, the crankpins are measured o... | 10/06/1981 |
| 4290238 | Universal crankshaft finishing machine A universal crankshaft pin and main bearing finishing machine having one pair of pin and main bearing arms with finishing shoes simultaneously engageable with one pair of pin and main bearings. A programmable controller and encoders automatically monitor ... | 09/22/1981 |
| 4266375 | Feed control apparatus for a machine tool carriage A feed control apparatus wherein a servomotor control device responsive to feed pulses distributed from a numerical controller controls a d.c. servomotor to advance a grinding wheel carriage of a grinding machine through the rotation of a feed screw succe... | 05/12/1981 |
| 4251760 | Gauging and tool control system for production of identical parts A system for duplicating a master part includes a gauge for measuring changes in the dimension therein of a master part to be duplicated and for providing control signals representative of changes from a predetermined dimension. The control signals are ap... | 02/17/1981 |
| 4248019 | Workpiece conditioning grinder control system An elongated metal workpiece such as a slab or billet is moved longitudinally beneath a grinding head by a reciprocating car mounted on an elongated track. The grinding head includes a rotating grinding wheel mounted at the end of a first arm which is piv... | 02/03/1981 |
| 4226053 | Grinding apparatus A grinding apparatus and method in which at least two grinding wheels are coaxially and rotatably supported on a common spindle and are juxtaposed with a worktable for a workpiece. A pulse motor on either the worktable or the spindle displaces the wheels ... | 10/07/1980 |
| 4223484 | Electronic control device for grinding machines, based on the evaluation of truing diamond position relative to workpiece An electronic control apparatus for internal grinders wherein, with the workpiece fitted on slippers, a hole diameter gauger is provided. The gauger consists of two symmetric, linear transducers, by which the positions of both ends of a diameter are separ... | 09/23/1980 |
| 4216628 | Device for automatically grinding syringe needle point An automatic grinder for grinding a syringe needle point includes a holder for holding a tube to be ground, a grinder, a hold-angle changer to change the angle at which the tube is held, a device to change the angular alignment of the tube by rotating the... | 08/12/1980 |
| 4212135 | Method of adaptive control of a recessing cycle on a grinding machine and apparatus therefor Method of adaptive control of a recessing cycle on a grinding machine where the roughing is terminated, if the allowance drops to a value determined from the characteristic value derived from the preceeding grinding cycle and from the allowance at the beg... | 07/15/1980 |
| 4205492 | Digitally controlled grinding machine with rest apparatus A digitally controlled grinding machine provided with a rest apparatus which is opposed to a wheel head, carrying a grinding wheel, for supporting against grinding resistance a workpiece rotatable on a support device, and with a measuring device, which ou... | 06/03/1980 |
| 4197679 | Method for controlling the rotational speed of a rotary body A method for controlling the rotational speed of a rotary body in which drive means for driving the rotary body is actuated on the basis of predetermined step-like speed command values corresponding to rotational angles of said rotary body. At transition ... | 04/15/1980 |
| 4195448 | Two-point contact steady rest follower A steady rest follower for a workpiece comprising a frame supporting a slide which is movable in directions toward and away from the workpiece. A pair of vertically spaced support wheels are mounted on the slide for engagement with the workpiece. A pair o... | 04/01/1980 |
| 4186527 | Apparatus for shaping electrodes Improved apparatus for shaping electrodes wherein an abrasive die member is driven into contact with an electrode workpiece member while the die and workpiece members are oscillated with respect to one another in the horizontal plane and wherein the relat... | 02/05/1980 |
| 4179854 | Grinding machine with rest apparatus In a grinding machine, a grinding wheel is digitally fed toward a workpiece being supported by a rest apparatus. Means is provided to measure a diametral dimension of the workpiece during a grinding operation. A taper amount of the workpiece ground under ... | 12/25/1979 |
| 4170851 | Grinding machine Grinding machine for bearing races and the like in which a grinding plane extending transversely of the race axis is adjusted axially in accordance with variations in the end-to-end dimension of the race to provide a symmetrical track or groove of control... | 10/16/1979 |
| 4163346 | Grinding machine control A tangential grinding machine has a variable grinding feed rate which is dependent upon the length of the cutting or grinding path which occurs between the grinding wheel and a workpiece. The variable feed rate accomodates fluctuations in grinding wheel a... | 08/07/1979 |
| 4155106 | Magnetic head using a semiconductor element A magnetic head having one or more magneto-electric converting elements, such as Hall elements, and comprising plural leads which are used, when the magnetic head is manufactured, for measuring the amount of head material ground away between a front surfa... | 05/15/1979 |
| 4150513 | Method for grinding A method and apparatus for grinding for use with a grinding machine of the type comprising a circular grinding wheel adapted to rotate about its axis and a spindle adapted to hold a workpiece at a position radially spaced from the grinding wheel wherein t... | 04/24/1979 |
| 4137677 | Constant horsepower control for grinding wheel drives A constant horsepower drive system for a grinding wheel includes a first motor and associated control for rotating the wheel at a constant peripheral or surface speed and a second motor and associated control for providing linear relative motion between t... | 02/06/1979 |
| 4118900 | Method for controlling grinding process In a grinding machine, either the revolutional speed of the workpiece or of the grinding wheel is controlled and further the infeed speed of the wheel to the workpiece is controlled so that the optimum grinding condition, having a suitable ratio of the wo... | 10/10/1978 |
| 4117634 | Controlling method for a grinding machine During rough grinding operation of a grinding machine, metal removal rate of the workpiece is detected for shifting the changing point from the rough grinding to fine grinding, and, with larger metal removal rate, the changing point is shifted earlier and... | 10/03/1978 |
| 4074982 | Process and means for grinding out faults in the surface of a work piece An apparatus and process for grinding out faults on the surface of a ferromagnetic workpiece includes the step of placing a grinding device on the workpiece, magnetizing the workpiece by a magnetizing device, sensing surface faults in the magnetized workp... | 02/21/1978 |
| 4067148 | Feed apparatus for grinding machine A feed apparatus for a grinding machine including a bed, a swivel base rotatably mounted on the bed, a wheel support slidably mounted on the swivel base for sliding movement in a direction slanted by a predetermined angle with respect to a radial directio... | 01/10/1978 |
| 4059927 | Grinding machine A grinding machine in which the grinding cycle is controlled by a stepping motor which receives pulses from a linear feed-controlled generator and which is operative to give an adjustable diamond clearance.... | 11/29/1977 |
| 4055027 | Method and relative device for checking the working conditions during the grinding in centerless grinders A measuring and control method to check the position and/or wear of a knife element supporting a piece being machined in centerless grinders including foreseeing the generation of signals responsive to the position of the workpiece surface close to the su... | 10/25/1977 |
