Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7568969 | Locking mechanism of linear motor travel slider and processing machine A locking mechanism of a linear motor travel slider, includes: a serration member having a teeth portion and disposed on one of the bed and the travel slider extending in a slider-traveling-direction; a bracket supported by the other of the bed and the travel slider... | 08/04/2009 |
| 7461439 | Method for detecting malfunction in clamping and machine tool The method for detecting any clamping malfunction of the work within the machine tool which clamps both ends of the work with clamping mechanisms 23, 24 of a pair of headstocks 19, 29, and processes the work by spinning the work through synchronous rot... | 12/09/2008 |
| 7424846 | Pneumatically static balancer for machine tool A pneumatically static balancer for a machine tool counterbalances or lightens a gravitational load generated by an own weight of a vertically moving driven member. The pneumatically static balancer includes a pneumatic cylinder supporting the driven member and allo... | 09/16/2008 |
| 7367762 | Main spindle apparatus and tool holder clamp unit used therefor A main spindle apparatus has a main spindle having a through hole, a main spindle head rotatably supporting the main spindle therein, a tool holder clamp unit including an unit main body having a tool mounting hole to which a tool holder is mounted, a clamp mechanis... | 05/06/2008 |
| 7269472 | Many-headed grinding machine and grinding method using many-headed grinding machine A control device 40 controls the grinding processing at a processing portion of a work W so as to shift to the last precision grinding step from a rough grinding step through a middle grinding step and a finishing grinding step. When the grinding in each step... | 09/11/2007 |
| 7231277 | Surface shape determining device for a machining apparatus and surface shape determining method In a state of separating a front end face of an air injecting nozzle 23 from a worked work W by a predetermined interval h, the air injecting nozzle 23 is moved at a constant speed in an X axis direction, injects air from an injecting hole 27... | 06/12/2007 |
| 7182720 | Machine tool A machine tool has a support table provided on an upper surface of a bed to support a work, a Z-axis saddle, a machining unit mounted on the Z-axis saddle and provided with a machining head, a compartment cover arranged on the bed to compartment a region and a machi... | 02/27/2007 |
| 7146241 | Machine tool control apparatus A machine tool control apparatus includes: a control program storage unit that stores control programs for performing standard running control. The control program storage unit includes a basic data memory that sets a control program for performing standard running,... | 12/05/2006 |
| 6722956 | Working apparatus A finishing grindstone member (20) is fixed to a spindle (10) by a bolt. In the spindle (10), there is formed a tool mounting portion (25) into which a rough grindstone member can be mounted. Into the tool mounting portion (25), th... | 04/20/2004 |
| 6680459 | Laser beam machining apparatus and laser beam machining method A laser beam machining apparatus forms blind holes at predetermined intervals in a workpiece by intermittently irradiating a laser beam from a laser nozzle to the workpiece while the laser nozzle and the workpiece being moved relatively. During the time t... | 01/20/2004 |
| 6626735 | Method of stopping machining operation in machine tool and machining controlling apparatus for implementing the same A machining controlling apparatus numerically controls a wheel spindle stock and a spindle apparatus, and performs the machining operation of a workpiece by a grinding wheel. When a power failure has been detected by a power-failure detecting unit, a grin... | 09/30/2003 |
| 6439969 | Apparatus and method of chamfering wafer Chamfering C1 is performed along the edge of a notch groove by the center 01 of a grindstone 5. Change to grindstone center 02 is performed to perform chamfering C2 along the edge of the notch groove. Similarly, chamfering C3, C4 and C5 are formed. A grin... | 08/27/2002 |
| 6436021 | Method and apparatus for supplying lubricant A lubricant supply apparatus 1 includes a tank holder portion 3 and a lubricant tank portion 2. In case where a tool holder clamp device 62 provided on a spindle shaft 61 pushes against an abutting member 35 disposed in the lubricant supply apparatus 1, l... | 08/20/2002 |
| 6332834 | Method and apparatus for grinding a workpiece A workpiece 23 formed of a circular thin plate is rotated about its center as an axis L1. Each of disk-shaped rotating grinding wheels 27 and 28, while being rotated about an axis L3 extending in a direction substantially parallel to the plane of the work... | 12/25/2001 |
| 6302769 | Method for chamfering a wafer In the wafer chamfering method, there is used a disk-shaped grindstone 8 which includes: a peripheral edge portion serving as a grinding surface 1; a flat portion formed in the central portion of the grinding surface 1 in the width direction thereof; and,... | 10/16/2001 |
| 6296553 | Grinding method, surface grinder, workpiece support, mechanism and work rest A workpiece receiving hole 60a for fittingly receiving a workpiece 17 is formed in the center of a rotary disk 60 which is thinner than the workpiece 17. A workpiece drive section 60b which engages a notch 17a formed for the purpose of orienting the workp... | 10/02/2001 |
| 6220931 | Feeding a grinding wheel in grinding method A spindle 23 of a grinding wheel 28 is rotatively borne by a bench 22 for the grinding wheel through hydrostatic thrust bearings 26 and 27. A pressure regulator 38 for regulating the pressure which must be supplied to at least either of supply ports 26a a... | 04/24/2001 |
| 6198070 | Laser beam machining method and laser beam machine A laser beam machining method includes the steps of, irradiating a laser beam on a machining portion of a workpiece for the machining thereof, blowing out an assist gas toward the machining portion of the workpiece continuously during the irradiating step... | 03/06/2001 |
| 6179909 | Work crystal orientation adjusting method and apparatus In the work crystal orientation adjusting method, the crystal orientations of a work 22 in the rotational direction and in the horizontal direction thereof are measured by an orientation measuring device 76. In accordance with the measured value of the cr... | 01/30/2001 |
| 6113489 | Ingot slicing method, an ingot manufacturing method and a sliced ingot grinding apparatus A method of slicing an ingot wherein a pre-cut work 3 in which a holding member 2 extending over the entire length of a side surface of a cylindrical ingot 1 is bonded to the side surface of the ingot 1 is set on a slicing apparatus 4, and the pre-cut wor... | 09/05/2000 |
| 6112737 | Wire saw and method of cutting work A wire saw which can improve a working accuracy is provided. When a wire goes to a rightward direction by a rotation of a moving motor, the wire is inclined in such a manner as to be moved toward a right and outer periphery from an inner portion of a work... | 09/05/2000 |
| 6095129 | Tension adjusting mechanism for wire saw There is provided a tension adjusting mechanism which can prevent a dancer arm from being widely rotated and a peripheral roller such as a guide roller from early abrading even in the case a wire is tensioned or loosened in accordance with a speed increas... | 08/01/2000 |
| 6077146 | Method of correcting a taper in a grinding machine, and apparatus for the same A taper correcting apparatus for a grinding machine comprises: workpiece supporting means for supporting a workpiece in parallel with a grinding wheel spindle; a cutting and feeding device which moves back and forth a cylindrical grinding wheel with respe... | 06/20/2000 |
| 6071220 | Tool change device and tool change method In the tool change device, a tool change arm 27 for changing a tool 25 with respect to a main spindle 24, a main tool magazine 29 including a plurality of hold grooves 30 arranged linearly for holding the tools 25, and a tool storage member 41 including a... | 06/06/2000 |
| 6036585 | Grinder and grinding method A spindle 23 of a grinding wheel 28 is rotatively borne by a bench 22 for the grinding wheel through hydrostatic thrust bearings 26 and 27. A pressure regulator 38 for regulating the pressure which must be supplied to at least either of supply ports 26a a... | 03/14/2000 |
| 6020573 | Laser beam machining apparatus A laser beam machining apparatus capable of eliminating a complicated unit arranged to vertically move pallets and adapted to a pallet storage unit for making the heights of upper and lower pallets to be constant so as to simplify the structure thereof an... | 02/01/2000 |
| 5885200 | Tool change device In the tool change device, a tool change arm 27 for changing a tool 25 with respect to a main spindle 24, a main tool magazine 29 including a plurality of hold grooves 30 arranged linearly for holding the tools 25, and a tool storage member 41 including a... | 03/23/1999 |
| 5865162 | Wire saw and work slicing method In a wire saw, it is an object to reduce the variance in width of cut slices of a work as well as the degree of coarseness of the cut slices. A plurality of machining rollers 13 and 14 are arranged in parallel at prescribed intervals, and a large number o... | 02/02/1999 |
| 5817711 | Aqueous working liquid composition for wire saw An aqueous working liquid composition for a wire saw comprising the following components (A) to (E): (A) 10 to 60% by weight of at least one selected from the group consisting of polyglycol ethers represented by the following formulae (I) and (II): #... | 10/06/1998 |
| 5500507 | Laser beam machining device and laser beam machining method A laser beam machining device, which can automatically machine a plurality of workpieces in sequence, is disclosed. A plurality of pallets supporting workpieces are stored in a pallet storing station in a shelved manner by means of a pallet transport devi... | 03/19/1996 |
| 5201305 | Brittle material cutting method In a method of cutting a workpiece of brittle material with a wire by using a machining solution containing abrasive grains, the workpiece is pushed against the wire from above, and a machining solution pooling vessel is disposed below the workpiece, to i... | 04/13/1993 |
| 5103074 | Laser processing method and apparatus With a laser processing apparatus, the membrane of a membrane-covered film is accurately processed with a scanning laser beam linearly both in the direction of conveyance of the film and in a widthwise direction forming an angle with the direction of conv... | 04/07/1992 |
| 5080474 | Laser beam shaping device A laser beam shaping device is made up of a multiple reflecting mirror unit with reflecting surfaces facing each other to reflect a laser beam in multiple reflections, a light gathering cylindrical lens for gathering the laser beam near the inlet of the m... | 01/14/1992 |
| 4984390 | Grinding disc dressing apparatus A grinding disc dressing apparatus for dressing an active grinding side or surface of a grinding disc of a surface grinding machine includes feed means for moving a dressing roll between an outer periphery of the grinding disc and the central portion of t... | 01/15/1991 |
| 4980627 | Numerically controlled apparatus A numerically controlled apparatus wherein a tool can be returned by a high speed retrograding operation without damaging a chip of a tool or a work. The numerically controlled apparatus comprises a command executing block which decodes a working program ... | 12/25/1990 |
