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| Number | Title | Issue Date |
| 6390894 | Face gear manufacturing method and apparatus A face gear manufacturing operation wherein a set of oversized teeth are formed on a face gear or tapered pinion gear by a gear cutting operation. The oversized teeth are of a predetermined profile. The gear bearing the oversize teeth is then subjected to... | 05/21/2002 |
| 5954568 | Method, tool and device for the profiling of grinding worms for continuous gear grinding The profiling tool (10) has a segment (12) of a worm thread. Its active zone (13) is coated with grains of hard material (16) and is crowned in cylinder sections coaxial to the tool axis (26). During profiling, the grinding spindle (2) and the tool (10) r... | 09/21/1999 |
| 5681207 | Method of working a helical gear by grinding In forming a helical gear by grinding with a grindstone, the modification accuracy of crowing etc. is improved in such a way that the inequality ଲ>γ c is established wherein ଲ is the helix angle of the helical gear to be ground and γ c is th... | 10/28/1997 |
| 5044127 | Gear-shaped tool and method of generating gears A gear-shaped tool (30) having stock removing surfaces (38) is rotated together with a bevel or hypoid work gear (32) in accordance with their respective number of teeth, and the gear-shaped tool 30 is also moved relative to the work gear (32) in the mann... | 09/03/1991 |
| 5020279 | Machine tool for manufacture and dressing of tools and for finish-machining of gear wheels A machine tool for the manufacture and dressing of tools and for finish-mining of gear wheels comprising three spindles (4, 5, 15) installed in the heads (2, 3, 17) of their own and provided with drives (8, 11), two of said spindles (4, 5) being synchron... | 06/04/1991 |
| 5014467 | Method and machine for the discontinuous generating grinding with indexing A method and a machine for the discontinuous generating grinding with indexing of the tooth flanks (14) of gears. The rotating grinding wheel (T) carries out several back and forth feed movements (X) from one axial side face of a tooth to the other. The g... | 05/14/1991 |
| 4833836 | Process for grinding a gear tooth blank to form an involute gear tooth A process for grinding a gear tooth blank to form an involute gear tooth includes the steps: setting a predetermined cutting rate which fails to result in burning between a grinding wheel and the gear tooth blank; determining the area of the tooth face of... | 05/30/1989 |
| 4739587 | Rolling drive for a gear-grinding machine A rolling device for a gear-grinding machine in which the rotation portion of the rolling movement is effected by roll bands secured at one end to a roll-band carriage which is movable transversely with respect to the workpiece axis and at the other end t... | 04/26/1988 |
| 4646474 | Drill grinder This invention relates to an improved drill grinder and particularly to one which comprises a main frame. A grinding wheel is disposed on one end of the main frame. A stand is located on the slidable seats which are disposed on the other end of the main f... | 03/03/1987 |
| 4638599 | Gear grinding machine for radial or helical spur gears The invention relates to a gear grinding machine for straight toothed or oblique toothed spur gears, in which a main slide (2) reciprocable on the machine column and an auxiliary slide (7) reciprocable on the main slide are provided for producing the rock... | 01/27/1987 |
| 4538383 | Front surface grinding machine and method Each workpiece holder of a grinding machine is reciprocated relative to and turned about an axis parallel to that of a wheelhead spindle. Workpieces carried by the holder are brought from in front of and to the side of an abrasive wheel front working surf... | 09/03/1985 |
| 4393625 | Apparatus for grinding gears An apparatus for grinding gears having an involute-shaped tooth flank profile, wherein there are accomplished between a dished or plate-shaped grinding wheel and the gear teeth to-and-fro generating movements as well as feed or advance movements in the to... | 07/19/1983 |
| 4265575 | Tooth-edge gear working machine A machine for working the edge of a tooth on a spur, bevel or similar type workpiece. The workpiece is mounted on a workpiece spindle and is supported for rotation as well as reciprocal axial movement. The workpiece spindle on which the workpiece is mount... | 05/05/1981 |
| 4203260 | Apparatus for grinding cylindrical gears An apparatus for grinding cylindrical gears by means of a generating method, comprising two substantially plate-shaped grinding wheels for machining a right tooth flank and a left tooth flank of the gear by means of a practically point-shaped contact zone... | 05/20/1980 |
| 4045917 | Gear grinding machine Adjusting device for an oscillating workpiece. In one type of gear grinding machine, there is provided means for effecting oscillation of the workpiece simultaneously and in synchronism with reciprocation thereof in order to enable a substantially involut... | 09/06/1977 |
| 4045916 | Rolling drive on a gear grinding machine The invention relates to an adjusting device for an oscillating workpiece. In one type of gear grinding machine, there is provided means for effecting oscillation of the workpiece simultaneously and in synchronism with reciprocation thereof in order to en... | 09/06/1977 |
