Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 8123233 | Clamping device The invention relates to a clamping device, especially for releasably clamping a machine tool having a fixing element extending therefrom. The clamping device includes a deforming clamping element which acts on a clamping part with a clamping force in order to secur... | 02/28/2012 |
| 7316403 | Hydrostatic workpiece holder with a removable cartridge assembly A workpiece holding apparatus comprises a body, a cartridge assembly carried by the body and a sleeve. The cartridge assembly comprises at least one sealing member and a bladder supported by a retainer and at least partially defining a fluid chamber that houses a pr... | 01/08/2008 |
| 7198277 | Wheel chuck with counterweighted jaws A wheel chuck includes a plurality of moveable jaws mounted upon a support structure. A plurality of moveable counterweights are mounted upon the support structure with each counterweight opposite from and connected to a corresponding one of the jaws. Upon rotation ... | 04/03/2007 |
| 7147232 | Workpiece holder A workholding apparatus including a body and a drive member carried by the body, so that the drive member and body partially define a fluid chamber therebetween for containing a fluid. A driven member is also carried by the body and includes multiple displacement re... | 12/12/2006 |
| 6880831 | Power-actuated lathe chuck A chuck has a chuck body rotatable about a chuck axis, a plurality of holders angularly spaced about and radially displaceable on the body and each formed with an outwardly flared seat centered on a respective seat axis, and an actuator for radially displacing the h... | 04/19/2005 |
| 6089578 | Chuck assembly A jaw assembly used with the rotary driving member of an air cylinder to process a workpiece, including a casing having a center through hole into which the rotary driving member of the air cylinder is inserted, a springy jaw holder covered on the casing,... | 07/18/2000 |
| 5984319 | Holding device The invention relates to a holding device for balancing disk-like inertial bodies, which comprises at least two clamping elements (8) centered on a center axis (A), such elements (8) having a respective radial abutment face (34), wherein the clamping elem... | 11/16/1999 |
| 5967528 | Workpiece chucking device A workpiece chucking device is strengthened in its workpiece chucking force. The workpiece chucking device comprises a diaphragm 14 having chucking claws 35 in the front of a base 12 which will rotate along with a spindle 11 of a machine tool, a piston wh... | 10/19/1999 |
| 5944325 | Mechanically actuated hydrostatic tool holder A collet for holding and precisely locating a cutting tool within a tool holder has a bore constructed to receive a shank of the cutting tool therein, a hydrostatically displacable sleeve received in the bore, a piston received within a passage communicat... | 08/31/1999 |
| 5797605 | Workholding apparatus Workholding apparatus for mounting a workpiece (6) on a machine tool, the apparatus comprising a diaphragm chuck portion (2) and a tailstock portion (4). The chuck (2) includes a backing ring (70) with face portion (74) attached to the diaphragm (44) with... | 08/25/1998 |
| 5580301 | Device for fastening a lapping disk to the axle of a motor of a lapping unit used on the rail of a railway A resilient clamp (15) is provided which has the general shape of a dish or of a bell, and which is provided with radial slots (18) in its peripheral part and a central solid annular part. Structure is provide (21) for centering the clamp (15) with respec... | 12/03/1996 |
| 5326114 | Quickly interchangeable chuck with mechanical power assist clamping capabilities A quick-change chuck includes a power-assist clamp feature for use in a machine tool having a powered draw bar. The chuck body includes inner and outer faces with a bore formed therethrough. A tapered polygon alignment pin extends inwardly from the inner ... | 07/05/1994 |
| 5259630 | Device for clamping workpiece A device for clamping a workpiece has a base body rotatable together with a spindle of a machine tool. The base body has a hollow portion defining a space. A piston is mounted in the space so as to be movable back and forth by fluid supplied through passa... | 11/09/1993 |
| 4278245 | Apparatus for clamping a plurality of elements Apparatus for releasably clamping a plurality of elements, such as electrodes associated with an electrical machine, are provided wherein a housing generally defines a cavity with at least one of the elements protruding into the cavity. A fluid medium ada... | 07/14/1981 |
| 4206932 | Diaphragm chuck with locking ring A diaphragm type chuck is disclosed equipped with means to lock the work engaging jaws against inadvertent release due to centrifugal forces. The means automatically shifts into jaw locking position when the chuck is closed and automatically releases the ... | 06/10/1980 |
| 4139207 | Double grip air chuck A fluid actuated chuck has two pairs of surfaces adaptable to engage a work piece with each of said pairs of surfaces being independently operable by the fluid. Such a chuck body includes means forming two pairs of surfaces carried and rotatably driven by... | 02/13/1979 |
