Abstract: In a dimensioning head for a plug gage, a pair of exteriorly projecting balls project through openings on either side of the longitudinal axis of the housing for contacting the inside diameter of the bore hole to be measured. Each of the balls contact a V-shaped groove of a guide surface to the housing to ensure accuracy and repeatability of measurements.

Abstract: Apparatus and method for detecting energy, such as power, consumed by a load. The apparatus preferably takes the form of a housing of sufficiently small size to be mounted in a motor control panel of a machine tool. The apparatus includes a digital processor adapted to enable bidirectional communication between the device and an external computer such as a host computer or machine controller. The processor is also used to perform various calibration functions.

Abstract: A hydraulic pump having a cylinder closed at one end with an elongated piston arranged within the cylinder from the other end. The piston is constructed of a positive magnetostrictive material which increases in length in the presence of a magnetic field of appropriate intensity. It is wound along its length with a coil of wire capable of producing an electro-magnetic field upon energization. The piston is fastened at the open end of the cylinder to define a cylinder cavity between the cylinder closed end and the piston. A pair of passages including valves, for use as an intake and an exhaust passage, communicate with this cavity. The valve members in each cavity comprise a magnetically polarized member, each of opposed polarity as related to the other, such that upon energization of the pump with one polarity of pulses, the valves will assume a particular function, and with a reversed polarity of operating pulses, a reverse function.

Abstract: A magnetostrictive hydraulic injector pump having a cylinder closed at one end with an elongated piston arranged within the cylinder from the other end. The piston is constructed of a magnetostrictive material which increases in length in the presence of a magnetic field of appropriate intensity. It is wound along its length with a coil of wire capable of producing an electro-magnetic field. The piston includes an intake passage communicating with a fluid supply. The piston is fastened at the open end of the cylinder to define a cylinder cavity between the cylinder closed end and the piston. An injector passage including a valve, communicates with this cavity to the exterior. The volume of this cavity is reduced when the piston expands under the influence of the magnetic field created by the coil to produce a pressure on any fluid contained within said cavity to force it out the injector passage.

Abstract: Precision parallel mechanical float for compliance automation gaging, parts handling, assembly and other operations involving a combination of tolerance misalignment. Parallel plates separated by three precision resiliently preloaded flat end rods provide resilient yield in a parallel plane as well as tilting under predetermined loading together with automatic recentering through restoring spring bias.

Abstract: A hydraulic pump having a pump cylinder closed at one end with an elongated piston arranged within the cylinder from the other end. The piston is constructed of a magnetostrictive material which increases in length in the presence of a magnetic field of appropriate intensity. It is wound along its length with a coil of wire capable of producing an electromagnetic field. The piston is fastened at the open end of the cylinder to define a cylinder cavity between the cylinder closed end and the piston. A pair of passages, including valves, an intake and an exhaust passage valve communicate with this cavity. The volume of this cavity is reduced when the piston expands under the influence of the magnetic field created by the coil to produce a pressure on any fluid contained within said cavity to force it out the exhaust passage to activate the hydraulic cylinder.

Abstract: A hydraulic pump having a cylinder closed at one end with an elongated piston arranged within the cylinder from the other end. The piston is constructed of a positive magnetostrictive material which increases in length in the presence of a magnetic field of appropriate intensity. It is wound along its length with a coil of wire capable of producing an electro-magnetic field upon energization. The piston is fastened at the open end of the cylinder to define a cylinder cavity between the cylinder closed end and the piston. A pair of passages including valves, for use as an intake and an exhaust passage, settable as required, communicate with this cavity. The valve members in each cavity comprises a magnetically polarized member, each of opposed polarity as related to the other, such that upon energization of the pump with one polarity of pulses, the valves will assume a particular function, and with a reversed polarity of operating pulses, a reverse function.

Abstract: In a dimensioning head for a plug gage, a pair of exteriorly projecting balls project through openings on either side of the longitudinal axis of the housing for contacting the inside diameter of the bore hole to be measured. Each of the balls contact a V-shaped groove of a guide surface to the housing to ensure accuracy and repeatability of measurements.

Abstract: In a dimensioning head for a plug gage, a pair of exteriorly projecting balls project through openings on either side of the longitudinal axis of the housing for contacting the inside diameter of the bore hole to be measured. Each of the balls contact a V-shaped groove of a guide surface to the housing to ensure accuracy and repeatability of measurements.

Abstract: Apparatus and cutting insert for milling threads into a workpiece using a single hard cutting insert having a plurality of cutting teeth or a plurality of hard cutting inserts each providing a single cutting surface.

Abstract: Various techniques are disclosed for controlling the operation of a workpiece inspection procedure using a battery operated probe to contact the workpiece and transmit information back to a controller in a machine tool system. In one embodiment, battery power is applied to the probe transmission circuitry in response to a flash of infrared radiation. In another embodiment, the probe is turned on by touching the probe against a reference surface. In both embodiments, a timer is provided to automatically disconnect the batteries after a predetermined time period. In such manner battery life is prolonged.

Abstract: A tool holder for a numerically controlled machine tool, in which a cutting edge provided on a base member is adjustable with respect to a reference surface on the base member by adjustment means. The adjustment means comprise a U-shaped slot in the base member. This slot serves to form a pair of lever portions in the material of the base member, which lever portions are connected to each other by an area of the base member serving as a pivot. An adjustment screw threadingly engaging the base member acts upon the free end of one of said lever portions such that upon an adjusting movement of the adjustment screw the first lever portion is deflected in a predetermined direction to thereby deflect the second lever portion of the opposite direction. The second lever portion transmits its movement to the cutting edge by means of a spacing member disposed in the slot (FIG. 1).

Abstract: Manually adjustable pivot head for a rotary boring bar having a spring steel mounting plate with two opposed arcuate slots terminating in yieldable webs extending between a rigidly mounted outer ring and deflectable central portion on which an annular flange of the boring bar is secured. A manually adjusted screw effects adjustment deflection of the central portion.

Abstract: A rotatable coolant supply shank, and cutting tool incorporating such shank, provided with a coolant inlet, for alignment with a ring bore, extending inwardly from the peripheral surface of the shank for positively pulling coolant towards the shank axis when the shank is coupled to the cutting tool and rotated while coolant is being supplied to the inlet from the ring bore.

Abstract: An adjustable boring bar wherein the adjustment of the cutting end is provided by a prestressed internal bar bearing against the cutting end to selectively distort the boring bar in the direction of the cutting bit to compensate for wear. The adjustment is by means of rotation of the prestressed internal bar to direct the pressure of the internal bar against the boring bar and cutting bit in the desired direction.

Abstract: Apparatus and methods are disclosed for use in monitoring the operation of an automated machine tool which has at least one linear slide axis. Motion along the various machine axes is detected and used to provide an output signal for synchronizing the comparison of real time monitored parameters with previously stored data which varies depending upon the operational stage of the part cycle in which the machine tool is operating. In one embodiment, a plurality of sections are stored in a memory. Each section contains limit values associated with normal characteristics of parameters such as power, vibration, acoustical emission and the like which occur during a given operational stage. A preselected detected change in motion along any of the slide axes initiates the generation of a new section of limit values to be used during the comparison. Provision is also made for inhibiting the comparison when the motion information indicates that the machine is not presently removing metal from the workpiece.

Abstract: Provision is made for identifying tools used in an automated machine tool system. A module or transponder is mounted to the tool and interrogated by a transceiver which, in the preferred embodiments, has read/write capabilities. The transponder uses energy from the transmitted signal to power itself and send information stored in its memory back to the transceiver. In one embodiment, electromagnetic energy is transmitted from the transceiver to the transponder while the transponder to transceiver communication link is provided by way of capacitive coupling.

Abstract: A stack of hinged plates are employed as part of a switch assembly for a probe used to detect contact with an object such as a workpiece. In the preferred embodiment, the plates are hinged together by flat springs clamped to, but electrically insulated from, side walls of adjacent plates.

Abstract: A cutting tool holder wherein a cutting tool can be released from a drawbar by selectively causing the drawbar to move along a longitudinal axis in a first direction. The drawbar is positively locked in place to prevent such movement during the cutting operation.

Abstract: A magnetostrictive hydraulic pump having a pump cylinder closed at one end with an elongated piston arranged within the cylinder from the other end. The piston is constructed of a magneto-strictive material which increases in length in the presence of a magnetic field of appropriate intensity. It is wound along its length with a coil of wire capable of producing an electromagnetic field upon energization. The piston is fastened at the open end of the cylinder to define a cylinder cavity between the cylinder closed end and the piston. A pair of passages, including valves, lead to a differential hydraulic actuator, for use as an intake and an exhaust passage to the actuator. The valve members in each cavity comprise a magnetically polarized member, each end of opposed polarity, such that upon energization of the pump with one polarity of pulses, the valves will assume a particular function, and with a reversed polarity of operating pulses, a reverse function.