Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7350613 | Transport with rotatable load and safety bumper A vehicle having (i) a rotatable platform for securing a load thereto, and (ii) an object detection system for detecting an object in the vehicle's path of travel. The sensitivity of the object detection system is variable so that it can be varied based on the rotat... | 04/01/2008 |
| 7275460 | Rotary indexing machine for use in a group of treatment stations A rotary indexing device for use in a group of treatment stations, includes at least one respective tensioning device for exchangeable tool holders disposed in a treatment zone. The rotary indexing machine has a rotary indexing unit with a lift-and-turn device on wh... | 10/02/2007 |
| 7143665 | Mechanical-hydraulic control device for controlling the locking and unlocking movements of rotary disk in a rotary disc table workpiece processing apparatus An improved mechanical-hydraulic device for controlling the locking and unlocking movements of a rotary disk—ring gear system comprises a mechanical screw and screw-nut assembly for driving the disk between a locking position, and an unlocking position, and a coop... | 12/05/2006 |
| 7137180 | Turret for machine tool A turret for a machine tool is provided with: a turret body; a swiveling drum on which a tool holder for holding the rotating tool is mountable; a swiveling and indexing drive portion for swiveling the swiveling drum with a swiveling and indexing motor and for index... | 11/21/2006 |
| 7084533 | Dual-function three-axis positioning system A dual-function, three-axis positioning system having a high precision z-theta state with a horizontal translation axis (z-axis) and a rotary axis (theta-axis) parallel with the translation axis and a second horizontal translation axis (x-axis) comprises parallel sp... | 08/01/2006 |
| 7063654 | Machining center Machining is possible in such a manner that an optional position of a workpiece is positioned just under a tool by rotation of a turn table in a C-axis direction and movement of a spindle on a Y-Z plane, so that a width of a main unit in a X-axis direction can be ma... | 06/20/2006 |
| 7010839 | Structure of a twin disc type tool turret mechanism for CNC machines A tool turret mechanism includes internal and external tool turrets, a toothed ring secured to the internal tool turret, a central shaft secured to the external turret, a power switch, and a clutch; the central shaft has a piston fitted thereto; the power switch is ... | 03/14/2006 |
| 7007906 | Adjustable top mount An adjustable top mount is disclosed including an adjustable head adapted to receive an arm adapter, the adjustable head having teeth separated by spaces, the arm adapter having a support tube adapted to receive an outrigger boom, a knob assembly operatively engaged... | 03/07/2006 |
| 6948720 | Computer controlled positioning table A computer controlled positioning table for use in automatically rotating a large diameter article into which an evenly spaced circle of bolt holes are to be drilled. The article to be drilled is centered and clamped onto a table top of the table and then the comput... | 09/27/2005 |
| 6938312 | Work pallet A work pallet that is arranged to be simple in construction capable of machining five faces of a work by rotating it around the axis of rotation. A work pallet (4) comprises a base body (5) detachably fixed to the table (3) of a machine-tool ( | 09/06/2005 |
| 6666109 | Indexing apparatus and method of assembling the same A worm shaft having a worm thereon, a worm wheel meshed with the worm, and a motor for driving the worm shaft are provided. The worm shaft and a shaft of the motor are connected together directly without interposing a rotation transmission mechanism, such... | 12/23/2003 |
| 6609441 | Indexing device A turret tool rest (14) includes a turret (24) movably supported on a base (22), on which desired tools can be mounted at predetermined indexable angled positions. A pair of coupling elements (66, 68), which can be engaged with each other, are arranged be... | 08/26/2003 |
| 6453773 | Elevation and index apparatus of water hydraulic driven type An elevation and index apparatus of a water hydraulic driven type has a rotary table (5) supported pivotally by a cross roller bearing (15), a water hydraulic motor (9) and a water hydraulic cylinder (8), each fixed to a table base (14) supporting a power... | 09/24/2002 |
| 6438813 | Rotary drive with a speed A rotary drive adapted to perform a speed of rotation switching of a tool holding device, comprising an output drive shaft bearing the tool holding device, said output drive shaft being able to be moved into first and second axial positions by means of a ... | 08/27/2002 |
| 6427554 | Axial displacement mechanism An axial displacement mechanism for precisely adjusting the axial displacement of a turret plate relative to a turret table is disclosed. Turret tables are commonly used to support a workpiece such as the hollow tubular section of a tin box immediately pr... | 08/06/2002 |
| 6240807 | Indexing apparatus An indexing apparatus for selectively indexing a payload about an axis. The apparatus includes a housing that supports an indexable support table. A second retainer is provided on the indexable support table that is adapted to selectively axially engage a... | 06/05/2001 |
| 6170358 | Indexing mechanism An indexing mechanism is provided to enable discrete angular displacement of a first body 10 relative to a second body 12. An intermediate body 22 is provided, and is rotatable relative to both the first and second bodies 10,12. Mutually engageable detent... | 01/09/2001 |
| 6080039 | Table drive for multi-axis machine tool A machine tool comprising a bed, a worktable movable relative to the bed along a linear path and a tool movable to engage a workpiece on the worktable wherein drive means for effecting the movement of the worktable relative to the bed and therefore to the... | 06/27/2000 |
| 6053075 | Device for controlling the locking and unlocking operations of a gear wheel-rotary disc assembly and apparatus including such a device A device for controlling the locking and unlocking operations of a gear wheel-rotary disc assembly comprises a ball for circulating screw having one end thereof coupled to a rotating coupling member. The screw is in turn rotatably engaged in a fixed ring-... | 04/25/2000 |
| 5806367 | Intermittent indexing apparatus using cam mechanism An intermittent indexing apparatus has a simple structure of supporting portions for bearings without requiring complicated manufacturing processes. The intermittent indexing apparatus includes input shaft, an output shaft, and a housing. An indexing cam ... | 09/15/1998 |
| 5758399 | Tool turret with torque overload protection A tool turret has a turret housing and a hollow supporting column. A head is provided at one end of the supporting column. The other end of the supporting column is connected with the turret housing. A tool face is mounted rotatably relative to the head a... | 06/02/1998 |
| 5628104 | Machine tool with turntable The invention describes a machine tool with a turntable, which has an upper part with a mounting plate which is arranged so as to pivot with respect to a stationary lower part, and is connected to at least one line to deliver fluids or electrical or mecha... | 05/13/1997 |
| 5341702 | Apparatus for calibration of an angular displacement A system for calibrating a rotary table (10) includes an indexing table (20) (which is a Hirth coupling table) and an angular interferometer (100), together with a control (200). The indexing table is mechanically coupled to the rotary table (this being t... | 08/30/1994 |
| 5297454 | Indexing device of machine tool A device for rotationally indexing an indexing table by utilizing a synchronized tap function of a machine tool main spindle. The rotation and the axial feeding displacement of the main spindle are in a specific synchronized relation. When the main spindl... | 03/29/1994 |
| 5271134 | Tool turret with axial reactive force A tool turret has a hydraulically slidable interlocking or clamping member in alignment with the rotary axis of the turret head for interlocking or clamping the turret head to the housing and for charging the turret head with an axially reactive force by ... | 12/21/1993 |
| 5261147 | Indexing system An indexing system for the rotary work changer of a machining center for supporting and interchanging work-holder pallets between the machining zone and the load/unload zone of the machining center. The indexing system comprises a hydraulically powered ro... | 11/16/1993 |
| 5187847 | Tool turret with pneumatic locking system A tool turret includes two toothed rims concentric to the rotary axis of its turret head and arranged radially adjacent to one another. One rim is immovable relative to the turret head. The other rim is immovable relative to the turret housing. The teeth ... | 02/23/1993 |
| 5185936 | Probe head with indexing mechanism A probe head (10) includes a support (12) by which the probe head is retained on the quill of a coordinate positioning machine, and a rotor (14) which is magnetically retained on the support (12). The rotor (14) is rotatable between a plurality of indexed... | 02/16/1993 |
| 5146663 | Revolving head for machine-tool A revolving head for machine tool including one fixed frame, one spindle-bearer turret movable in rotation with respect to this frame, at least two tool bearer spindles fitted to the turret, rotation devices for the spindles and automatic driving devices ... | 09/15/1992 |
| 5133538 | Table for securing a pallet supporting a workpiece to machine tools A table for securing a pallet supporting a workpiece to a machine tool, the table having a spindle movable in a vertical direction. When the spindle ascends, the clamp arms move outward thereby to enable the clamp pawl to clamp the pallet at a clamping po... | 07/28/1992 |
| 4989303 | Tool turret A tool turret has a locking mechanism part axially slidable relative to the turret head with a face gear engaging face gears of the turret head and the housing in its locked position. The axial slidability of the locking mechanism part out of its locked p... | 02/05/1991 |
| 4852428 | Indexing device An indexing device wherein a rotary member which is supported by a support member such that the rotary member is rotatable about its axis and axially movable between a first position thereof and a second position thereof is rotated by a rotational drive m... | 08/01/1989 |
| 4785513 | Turret having rotating and non-rotating tooling A compound turret for machine tools such as latches or the like having rotating and non-rotating tooling turrets mounted on a single housing. The compound turret includes a primary drive and a secondary drive. The primary drive includes a compound turret ... | 11/22/1988 |
| 4706351 | Twin disc type tool turret mechanism for CNC machines A twin disc type tool turret mechanism for CNC machines including a double layer of tool mounting discs attached respectively to two of a three-piece toothed ring-type registration and lock coupling. The front disc provides a number of mounting slots for ... | 11/17/1987 |
| 4685251 | Apparatus for indexing turrets for tools in grinding machines and the like A surface grinding machine wherein the turret for two grinding tools is indexible with reference to a support by disengaging the surfaces of its two coaxial sections from opposite sides of an annular component of the support. This is effected by cylinder ... | 08/11/1987 |
| 4644825 | Indexing and positioning device An indexing and positioning device comprises: a fixed inner ring; and outer ring disposed coaxially, coplanarly, and revolvably therearound with an annular boundary therebetween; a plurality of positioning recesses formed at equal indexing intervals along... | 02/24/1987 |
| 4640159 | Tool holder with plurality of cutting inserts A tool holder having a head with four pockets, each for supporting an indexible insert. Each insert is mounted on the head such that it can be indexed to reposition a plurality of cutting edges on the insert. The head has a shank rotatably mounted in a bo... | 02/03/1987 |
| 4587871 | NC turret lathe NC turret lathe comprising a tool turret rotatable about an indexing axis and mounted for rotation in a turret slide displaceable in a direction parallel to the indexing axis, also comprising a turret indexing drive monitored by a control mechanism for ro... | 05/13/1986 |
| 4571847 | Method and apparatus for use in co-ordinate measuring machines In a co-ordinate measuring machine a probe is connected to the head of the machine by a pivotal arm, and the orientation of the probe is changed by moving the head so that the arm engages a fixed structure and a moment is applied to the arm which is there... | 02/25/1986 |
| 4563910 | Positive-locking indexing system for high-speed operation A rotatable member to be indexed in a machine is intermittently rotated through specific angular displacements between predesignated indexing positions by an indexing mechanism driven by a hydraulic motor and is positively locked in each indexing position... | 01/14/1986 |
