Adjusting device for thread grinding machine
Abstract
Abstract AN ADJUSTING DEVICE ON A THREAD GRINDING MACHINE CONTROLS GRINDING OF A MALE THREAD OF HIGH FITTING ACCURACY ON WORKPIECES SUCH AS SPINDLES, BOLTS AND THE LIKE WHICH ARE TO BE PAIRED WITH FEMALE WORKPIECES SICH AS THREADED BALL BEARING NUTS AND THE LIKE. THE ADJUSTING DEVICE INCLUDES A MEASURING CONE FOR RECEIVING A MEASURING HEAD FOR THE NUT TO BE MEASURED, AND THIS MEASURING HEAD IS IN GEARED CONNECTION WITH THE USUAL FINE ADJUSTING SHAFT OF THE GRINDING MACHINE AND IS SO ARRANGED AS TO THE DISPLACED AXIALLY WITHIN THE MEASURING HEAD WHEN THE FIND ADJUSTING DEVICE IS OPERATED. THE MEASURING HEAD IS SECURED ON THE ADJUSTING HOUSING COAXIALLY WITH THE MEASURING CONE WHICH PROTRUDES FROM THE ADJUSTING HOUSING. THE MEASURING HEAD INCLUDES AN EXPANSION SLEEVE HAVING AN INNER CONICAL SURFACE IDENTIAL WITH THE SMOOTH-WALLED OUTER CONCIAL SURFACE OF THE MEASURING CONE, AND THIS EXPANSION SLEEVE IS EXPANDED BY THE AFOREMENTIONED AXIAL MOVEMENT.
Inventors
- 👤 Gerhard Stade
- 👤 Klaus Scherff
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |