Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7367761 | Tool, tool holder and machine tool A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying elect... | 05/06/2008 |
| 7331741 | Numerically controlled machine tool A numerically controlled machine tool performs machining by rotating a rotational tool attached to a tool holder mounted on a spindle, with keys fitted into key grooves in the tool holder. The numerically controlled machine tool includes predetermined-amount rotatin... | 02/19/2008 |
| 7217071 | Method for testing the fit or imbalance of a tool In the method, a tool is tested for an aligning fit or an imbalance in a tool spindle. The tool spindle is set into rotation. A light beam is used to check whether the tool wobbles. The tool spindle and the light beam are moved relative to one another until the ligh... | 05/15/2007 |
| 7175374 | Machine tool A method and a device for detecting the incorrect chucking of a machine tool capable of easily and surely detecting a chucking error; the method, comprising the steps of measuring, by a sensor (12), the change of a distance (d) between the sensor (12) ... | 02/13/2007 |
| 7037248 | Machine tool A method and a device for detecting the incorrect chucking of a machine tool capable of easily and surely detecting a chucking error; the method, comprising the steps of measuring, by a sensor (12), the change of a distance (d) between the sensor (12) ... | 05/02/2006 |
| 6695021 | Molding machine and method for adjusting at least one spindle of the molding machine A molding machine for machining workpieces of wood or plastic material has a transport path for transporting workpieces in a transport direction and adjustable spindles arranged sequentially in the transport direction on the transport path. Tools are fixe... | 02/24/2004 |
| 6561239 | Machine for machining workpieces of wood, plastic and the like, in particular, a molding machine, and a method for adjusting such a machine A machine for machining workpieces of wood and plastic has a transport path for transporting workpieces through the machine. One or more driven spindles having a tool for machining the workpieces transported through the machine are provided. An adjustable... | 05/13/2003 |
| 6550118 | Apparatus and method for accurate countersinking and rivet shaving for mechanical assembly operations The apparatus and method includes a spindle portion which holds a cutting tool. The drill is initially moved forwardly of a pressure foot portion of the apparatus. The pressure foot portion is then moved forwardly along with the spindle and drill to clamp... | 04/22/2003 |
| 6540454 | Spindle head positional error correction method for multi-axis machine tool In a multi-axis machine tool (M) including an angular dividing head (HD) having a spindle head (9) mounted thereto, the positional correction includes determining an error representative vector componentwise representative of a plurality of positional err... | 04/01/2003 |
| 6514016 | Stuck tool detector and related method There is provided an apparatus and method for detecting stuck tools in automated machining operations. When a machining operation on a workpiece is finished, the tools are retracted from the workpiece. Prior to moving the workpiece to another machining op... | 02/04/2003 |
| 6138056 | System and method for maintenance and repair of CNC machines A system and method are disclosed providing improved maintainability for CNC machine tools with serviceable parts. An electronic manual with video, audio, and textual information is stored in memory on a computer system integrated with the CNC tool contro... | 10/24/2000 |
| 6082513 | Clutch device of a miller A clutch device has a shaft rod, a hollow torsion sleeve, a trip device, an outer toothed gear, an inner toothed gear, and a first belt pulley. The outer toothed gear is disposed on the trip device. The hollow torsion sleeve has a plurality of grooves. Th... | 07/04/2000 |
| 5788435 | Automated diamond cutter apparatus First and second motors are provided for moving a workpiece support in an up and down direction and and for rotation about an axis. Third, fourth and fifth motors are provided for moving a rotating cutter in a lateral direction, for rotating the cutter ab... | 08/04/1998 |
| 5762454 | Spindle device A spindle device for detecting the completion of an automatic tool changing procedure comprising a spindle (11) having a tool holder support portion (22) formed at the forward end thereof, a drawing bolt (17) with a through-hole (18) through which an air ... | 06/09/1998 |
| 5119759 | Apparatus for solder nozzle height sensing The method and apparatus of the present invention permit the accurate sensing of the height of a solder nozzle above a circuit board during operation of the solder nozzle. A non-contact limit switch, which provides an indication of the presence of a plana... | 06/09/1992 |
| 4944643 | Torque thrust and surface sensing device A tooling device for numerically controlled machining centers having programmable torque, thrust and surface sensing utilizing a telescopic tool holder comprising an adapter to be retained in the taper of the machine spindle and a control rod in the spind... | 07/31/1990 |
| 4854786 | Computer controlled automatic shift drill The trust exerted on a drill bit is sensed and employed to determine the speed at which the bit is driven. A controller for the drill compares the thrust to a predetermined threshold value and in response to the comparison emits a control signal which shi... | 08/08/1989 |
| 4786220 | Cutting tool wear monitor A method and apparatus by which the degree of wear and useful life limitations of a drill, end mill or other types of metal removal tools can be detected. The method is based on the short circuit current, open circuit voltage and/or power that is generate... | 11/22/1988 |
| 4778313 | Intelligent tool system An intelligent tool system used with computer numerical controlled machining centers consisting of an internal spindle machanism and a variety of spindle mounted devices. The spindle mechanism provides CNC communicating and operating means with spindle mo... | 10/18/1988 |
| 4772161 | Profile working machine A profile working machine includes a support portion, a working portion, and a drive and control system. The machine also includes displacement sensors for detecting the present relative displacements between the support portion and working portion, a loa... | 09/20/1988 |
| 4744241 | Method and device for detecting a wear limit or break in the cutting edge of a tool A method and arrangement for detecting a wear limit or break in a cutting edge of a machine tool. At least two conductor paths are embedded in the cutting material forming the cutting edge, one of the conductor paths being part of a closed circuit while t... | 05/17/1988 |
| 4666352 | Profile working machine A profile working machine is equipped with a support for holding a work in place, a working tool for machining the work, and drive and control systems for controlling the relative displacements between the support and the working tool. The profile working... | 05/19/1987 |
| 4664571 | Tool abnormality detector A tool abnormality detector for use with a machine tool for detecting any abnormality of a tool mounted on the tool mounting shaft. When the tool mounting shaft is in a correct position with respect to the tubular body secured to the spindle, the air pres... | 05/12/1987 |
| 4656868 | Method and apparatus for discriminating cutting state from non-cutting state in machine tool An apparatus for discriminating a machining state from a non-machining state in a machine tool wherein a workpiece is machined with a cutting tool or grinder, comprising plural vibration sensors including at least one acoustic-emission sensor, which detec... | 04/14/1987 |
| 4579487 | Tool adapter A tool adapter for use in drilling, tapping and milling operations with the spindle of a machining center having a collet type tool holder which holds the tool which upon advancement into the work piece at a programmed feed rate to a programmed depth rate... | 04/01/1986 |
| 4478538 | Device for detecting tool abnormality When a drill is overloaded, while cutting a hole in a workpiece, a torque limiter disconnects the drill from a main spindle. As the drill is disconnected from the main spindle, the torque limiter generates high-level elastic waves. The elastic waves are c... | 10/23/1984 |
| 4451187 | Machine tool A machine tool comprising a rotary drive unit rotating a tool or workpiece, a load torque detecting device disposed between the rotary drive unit and the tool or workpiece rotated thereby, a linear drive unit moving one of the tool and the workpiece towar... | 05/29/1984 |
| 4117913 | Process and machine for smoothing printed wiring-circuit plates This invention concerns a machine for smoothing printed-circuit plates. In this machine, the plate is made to perform several transverse movements in relation to the lengthwise axis of the plate; at the end of each such transverse movement, the smoothing tool ... | 10/03/1978 |
| 4102245 | Door frame truing apparatus A machine or apparatus has been devised for accurately reconditioning or truing the sealing rim or flange of a door or window frame of a heavy piece of equipment, such as a furnace or coke oven that is subjected to relatively high and variable temperature... | 07/25/1978 |
| 4075753 | Plural slide machine A plural slide machine is disclosed for machining a first and a second workpiece comprising a first and a second slide for respectively receiving the first and the second workpiece. The first and second slides are mounted on ways for movement in a substan... | 02/28/1978 |
| 3995528 | Tool length compensator for numerically controlled machine An annular frame having a biased target plate thereon is mounted in a selected path of advance of each of the usual plurality of tools of a N.C. machine. Two micro-switches are mounted for operation in sequence upon selected movement of the target plate b... | 12/07/1976 |
| 3995969 | Flat circuit insulation stripping apparatus A mechanical apparatus and tool for clearing small areas of the plastic film insulation in flat flexible circuits and cables to permit making electrical connections to the metal foil conductors. An end-mill-like rotating cutter is fed into the laminated w... | 12/07/1976 |
| 3986433 | Lap milling machine A programmable machine for automatically cutting and/or resurfacing a selected arcuate pattern upon either a convex or concave lap, particularly such laps as may then be used for forming and polishing opthalmic lenses. A lap positioning unit and a cutter ... | 10/19/1976 |
