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| Number | Title | Issue Date |
| 5025690 | Vertical spindle turret lathe A machine tool (100) has a spindle (101) and a turret or toolholder (124) which are disposed at the front of a base (134).A workpiece (W) is rotated by the spindle (101). The turret (124) is movable toward and away from the workpiece (W) along a path whic... | 06/25/1991 |
| 5025214 | Circuit and process for converting a half bridge transducer output signal to an LVDT transducer output signal A circuit and a process for converting the output signal from a half bridge transducer to that from an LVDT transducer to enable direct use of either signal in an electronic column. The circuit subtracts the transducer exciting signal from a half bridge t... | 06/18/1991 |
| 4964220 | Coordinate measuring machine with cover system A coordinate measuring machine (10) having a horizontal probe shaft assembly (20) in which a cover system is provided for the X and Y axis ways (46, 108) and carriages (50, 106), including inwardly slanted X-axis cover members (26) mounted atop granite ex... | 10/23/1990 |
| 4958438 | Rotary table for a coordinate measuring machine and method of determining the axis of table rotation A rotary workpiece support table (12) for a horizontal arm coordinate measuring machine (10) having a retractable datum ball (144) for determining the axis of rotation of a table top plate (36) on a table base (40). A frictional drive mechaism (38) has a ... | 09/25/1990 |
| 4957376 | Linear bearing with a height adjustment mechanism A linear bearing (20) with a height adjustment mechanism (58) including a stud (64) fixed to the bearing (20) and a tubular bushing (72) received over the stud (64) and mating with a threaded bore (86) in an end wall (88) of a mounting structure (12). A r... | 09/18/1990 |
| 4945501 | Method for determining position within the measuring volume of a coordinate measuring machine and the like and system therefor Axis correction or machine charateristic data is stored (108) in memory (110) within a control or measurement processor (36) of a CMM (10) (FIG. 8). The axis correction data includes error data representing 21 different geometry errors (FIG. 4A through 4C... | 07/31/1990 |
| 4928396 | Coordinate measuring machine with improved carriage drive system A coordinate measuring machine (10) having an improved carriage drive system including a flexible toothed belt (89) mounted on a rigid spar member (88) to be stretched along the carriage (X) axis. The spar member (88) absorbs the tension loading of the st... | 05/29/1990 |
| 4927272 | Linear bearing with improved lubrication system and method A linear bearing installation in which a plurality of linear bearings (20) are mounted in a series of recesses (18) formed in a structure (12) to be supported on a way surface (38), the position of each of the bearings (20) in the respective recess (18) a... | 05/22/1990 |
| 4887360 | Way bearing arrangement for a horizontal arm coordinate measuring machine A bearing arrangement for a coordinate measuring machine having a horizontal probe arm assembly (16) extending to the front of the machine and supported for movement along X,Y, and Z orthogonal axes. The bearing arrangement comprised of opposing sets of s... | 12/19/1989 |
| 4863149 | Fixture for locating elements for assembly A roller bearing installation, in which one or more roller bearing assemblies (30A, 30B, 30C) are prepackaged in a housing (18) having corresponding recesses (28A, 28B, 28C) receiving each bearing assembly (30A, 30B, 30C). An angled gib plate (52A, 52C, 5... | 09/05/1989 |
| 4843706 | Method of installing A roller bearing installation, in which one or more roller bearing assemblies (30A, 30B, 30C) are prepackaged in a housing (18) having corresponding recesses (28A, 28B, 28C) receiving each bearing assembly (30A, 30B, 30C). An angled gib plate (52A, 52B, 5... | 07/04/1989 |
| 4828437 | Apparatus for supporting a workpiece A method and apparatus for rotatably supporting a workpiece WP includes a bearing ring 300 which extends around a center support member 204. The bearing ring is deflectable inwardly at a plurality of spaced apart locations 310 to engage the center support... | 05/09/1989 |
| 4821612 | Method for machining workpieces An apparatus for use in machining a workpiece includes a housing (102) which is operable between a closed condition enclosing a chuck (101) and an open condition. When the housing (102) is in the open condition, an opening (117) extends across the top of ... | 04/18/1989 |
| 4819195 | Method for calibrating a coordinate measuring machine and the like and system therefor Method (FIGS. 4A through 4C) and system (FIG. 3) are disclosed for automatically calibrating a coordinate measuring machine (CMM) (10). The system guides an operator through instrument set-up and data collection procedures. The system automatically conver... | 04/04/1989 |
| 4799316 | Coordinate measuring machine with a probe shaft counter balance system A coordinate measuring machine (10) having a pneumatic probe counterbalance system housed within the probe shaft (14) is disclosed, the system including a piston (54) fit into a cylinder (30) extending along the length of the probe shaft (14). The piston ... | 01/24/1989 |
| 4795952 | Joystick for three axis control of a powered element A joystick controller (38) for three axis control of a powered element such as a probe shaft (24) of a coordinate measuring machine (10) is disclosed in which a joystick handle assembly (40) is mounted for pivoting movement along either of orthogonal hori... | 01/03/1989 |
| 4787282 | Method and apparatus for forming by punching A method and apparatus for forming planar parts (WA) by progressively punching out the shape of the part (WA) from a piece of sheet material (W) in which the part (WA) is automatically removed from the remaining sheet material (W), by a hinged trap door s... | 11/29/1988 |
| 4787280 | Apparatus for machining workpieces and method therefor During operation of an apparatus to machine a workpiece, an unfinished workpiece is gripped by a workpiece loader and unloader assembly at a conveyor station. The loader and unloader assembly moves the workpiece along the axis of a spindle assembly throug... | 11/29/1988 |
| 4741232 | Apparatus for use in machining workpieces An apparatus for use in machining a workpiece includes a housing (102) which is operable between a closed condition enclosing a chuck (101) and an open condition. When the housing (102) is in the open condition, an opening (117) extends across the top of ... | 05/03/1988 |
| 4741231 | Tool force sensor and method of making same A tool force sensor assembly (20) generates an electrical signal which is related to the change in force applied by a tool (24) to a workpiece (28) and is indicative of the wear condition or failure of the tool (24). The sensor assembly (20) is mounted in... | 05/03/1988 |
| 4736625 | Method and apparatus for monitoring the cutting condition of a machine tool during machining of a workpiece A device-implemented method for monitoring the cutting condition of a machine tool during machining of a workpiece senses acoustic emissions resulting from the machining of the workpiece, produces an electrical signals which varies in accordance with chan... | 04/12/1988 |
| 4730945 | Integrally adjustable way bearings A roller bearing installation, in which one or more roller bearing assemblies (30A, 30B, 30C) are prepackaged in a housing (18) having corresponding recesses (28A, 28B, 28C) receiving each bearing assembly (30A, 30B, 30C). An angled gib plate (52A, 52B, 5... | 03/15/1988 |
| 4726103 | Fixture for attaching guideways to a machine tool base A fixture (50) is used to precisely locate the horizontal (20, 30) and vertical (10) guideways on the bed (40) of a grinding machine. After locating the guideways (10, 20, 30), a bonding material (70) is placed in the spaces (1, 2, 3) between the guideway... | 02/23/1988 |
| 4715102 | Machine tool An improved machine tool (10) has a driven cutting tool (T) which is rotatable about an axis (C) extending perpendicular to the axis (B) of rotation of a turret (200) when a toolholder (300) is mounted on an end face (203) of the turret (FIG. 7). The cutt... | 12/29/1987 |
| 4709514 | Dual wheel cylindrical grinding center The present invention relates to a method of dressing a complex contour onto a grinding surface of at least one grinding wheel of a two-axis grinding machine for grinding a workpiece. The method comprises the steps of causing at least one dressing diamond... | 12/01/1987 |
| 4706352 | Method of making a slide and way assembly A slide (20) having conveniently removable and replaceable bearing components (28-38) with the bearing components engaging seats (50) made of resilient, low friction material. The slide is supported on ways (24, 26) by way bearing pads (28-32) and opposed... | 11/17/1987 |
| 4685361 | Machine tool An improved machine tool includes a chip conveyor assembly which includes a conveyor and a coolant tank. The chip conveyor assembly is movable between a closed or operating position and an open or exposed position. In the closed position, the chip conveyo... | 08/11/1987 |
| 4684266 | Slide and way assembly and method of making same A slide (20) having conveniently removable and replaceable bearing components (28-38) with the bearing components engaging seats (50) made of resilient, low friction material. The slide is supported on ways (24, 26) by way bearing pads (28-32) and opposed... | 08/04/1987 |
| 4682418 | Coordinate measuring machine A coordinate measuring machine (10) having a light weight aluminum bridge (24) mounted for guided movement along ways (42) on a base (28), which also is constructed of aluminum to match thermal growth characteristics of the bridge (24). The table (12) is ... | 07/28/1987 |
| 4680868 | Coordinate measuring machine with covers A coordinate measuring machine (10) is disclosed of the type having a bridge (28) mounted for horizontal movement of a base (30), a carriage (24) mounted for horizontal movement in a direction orthogonal to the direction of bridge movement and a probe (12... | 07/21/1987 |
| 4658245 | Tool condition and failure monitoring apparatus and method An apparatus and method for tool condition and failure monitoring system for predicting imminent tool failure by sensing acoustic emissions from a cutting operation converting the emissions into an electrical signal filtering the electrical signal and usi... | 04/14/1987 |
| 4630374 | Bridge type coordinate measuring machine A bridge type coordinate measuring machine (CMM) characterized by a bridge (20) that has a closed loop configuration encircling the upper surface (11) of the measuring machine base (10). The bridge (20) includes two uprights (21, 22), an upper member (23)... | 12/23/1986 |
| 4626299 | Method of attaching guideways to a machine tool bed A fixture (50) is used to precisely locate the horizontal (20, 30) and vertical (10) guideways on the bed (40) of a grinding machine. After locating the guideways (10, 20, 30), a bonding material (70) is placed in the spaces (1, 2, 3) between the guideway... | 12/02/1986 |
| 4621551 | Tailstock quill hydraulic circuit A hydraulic circuit for use on a turning machine (10) having a quill (32) which is movable to an extended and retracted position for detecting, through pressure drop, when the quill (32) is fully retracted or extended and engaging a workpiece. The quill (... | 11/11/1986 |
| 4610089 | Bridge type coordinate measuring machine A coordinate measuring machine (CMM) of the type including a bridge (26) supported for horizontal movement on a base (20) that has a table portion (18). The bridge includes cross members (28, 32) that extend above and below the table (18). The bridge (26)... | 09/09/1986 |
| 4608654 | Linear position indicator A linear position indicating system utilizing a fixed chain (20) which engages a pinion (32) connected to a mechanical input of an encoder (26) for providing position information. Encoder (26), supported on a relatively movable cross slide (14), provides ... | 08/26/1986 |
| 4601094 | Turning machine with an automatic tool changer A turning machine (10) having a tool changer (70) capable of automatically changing O.D. and I.D. tools. A tool block system which supports the various tools is utilized. The tool changer (70) has a pair of fingers (74) disposed at the end of a cross arm ... | 07/22/1986 |
| 4599560 | AC excited transducer having stabilized phase sensitive demodulator circuit A signal conditioning circuit (30) using an oscillator (32) which feeds a counter (34) whose output addresses a programmable memory (42). The output of the programmable memory (42) provides a selected processed signal which is used for excitation of a tra... | 07/08/1986 |
| 4594791 | Bridge type coordinate measuring machine A bridge type coordinate measuring machine characterized by a bridge (20) that has a closed loop configuration encircling the measuring machine base (10). The bridge (20) includes two uprights (21, 22), an upper member (23) connecting the uprights togethe... | 06/17/1986 |
| 4593587 | Machine tool utilizing force transmitting joints An improved machine tool (10) utilizing force transmitting joints for securing a way block (32) to a one-piece cast bed (12). The way block (32) and one-piece bed (12) have interlocking projections (70) and recesses (72) for transmitting the load between ... | 06/10/1986 |
