| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Centering device and method | US847217 | 1986-04-02 | US4656745A | 1987-04-14 | William J. Griffin |
| An improved apparatus and method for locating the center of the ends of wood stock for use such as in a wood turning operation. The apparatus includes an adjustable fence and stop member, with the apparatus adapted to be mounted on a band saw or other machine tool. An additional feature includes improved adapters for use with a live lathe center in a wood turning operation. The present invention results in safer operation and also provides a substantial reduction in the time and labor required to center the ends of a piece of wood stock. | ||||||
| 102 | Method of machining a workpiece between centers and a clamping device for performing this method | US570462 | 1984-01-13 | US4604923A | 1986-08-12 | Helmut F. Link; Erich E. Schafer |
| A method for rough-turning and finishing a workpiece on a lathe wherein the lathe is provided with a tailstock center which is axially displaceable, a further center on the work spindle as well as axially displaceable front drivers and a chuck so that, for rough-machining, the workpiece is lifted off the work spindle center by means of the front drivers and driven by the chuck whereas, for finish-machining, the workpiece is held between the centers and driven by the front drivers. | ||||||
| 103 | Benzodiazepine derivative and process for producing the same | US566434 | 1975-04-09 | US4046772A | 1977-09-06 | Yutaka Kuwada; Hiroyuki Tawada; Kanji Meguro |
| A benzodiazepine derivative of the general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group or a carboxyl group which may be esterified or amidated; R represents a hydrogen atom, an acyl group or a lower alkyl group, and each of the rings A and B is unsubstituted or substituted by halogen atom, nitro, lower alkyl, trifluoromethyl or lower alkoxy group, or its pharmaceutically acceptable acid addition salt is found to be useful as medicine in human and animal therapy, which acts on the central nervous system, e.g. muscle relaxants, anticonvulsants, sedatives, tranquilizers etc. | ||||||
| 104 | Workpiece drive means for turning lathes | US3657950D | 1970-05-27 | US3657950A | 1972-04-25 | DUGLE THOMAS E |
| The lathe includes opposed bodily shiftable headstocks each having a rotational spindle for engaging opposite ends of a workpiece as the headstocks are shifted toward one another. The spindles are rotated by means of two identical hydraulic pumpmotors connected in a pressurized fluid piping system wherein fluid is kept in circulation by a third identical hydraulic pumpmotor driven by a constant speed electric motor. By including the spindle-driving pump-motors in a common fluid system, said pumpmotors are obliged to share equally the work of driving opposite ends of an elongate workpiece supported between centers on the spindles. The drive means between each spindle and one end face of the work piece, is a purely frictional drive means the effectiveness of which is aided by a high-pressure auxiliary means to elevate and maintain the force of frictional contact between the workpiece end and a unique friction-ring assembly on the spindle involving hard and soft polyurethane transmission members. The pump-motors, two of which operate as spindle drivers, while one operates as a pump delivering operating fluid to the others, are all identical and interchangeable with one another in the interests of economical maintenance and speedy replacements.
|
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| 105 | Workpiece drive means for turning lathes | US3605533D | 1968-03-04 | US3605533A | 1971-09-20 | DUGLE THOMAS E |
| THE LATHE INCLUDES OPPOSED BODILY SHIFTABLE HEADSTOCKS EACH HAVING A ROTATIONAL SPINDLE FOR ENGAGING OPPOSITE ENDS OF A WORKPIECE AS THE HEADSTOCKS ARE SHIFTED TOWARD ONE ANOTHER. THE SPINDLES ARE ROTATED BY MEANS OF TWO IDENTICAL HYDRAULIC PUMP-MOTORS CONNECTED IN A PRESSURIZED FLUID PIPING SYSTEM WHEREIN FLUID IS KEPT IN CIRCULATION BY A THIRD IDENTICAL HYDRAULIC PUMP-MOTOR DRIVEN BY A CONSTANT SPEED ELECTRIC MOTOR. BY INCLUDING THE SPINDLEDRIVING PUMP-MOTORS IN A COMMON FLUID SYSTEM, SAID PUMP-MOTORS ARE OBLIGED TO SHARE EQUALLY THE WORK OF DRIVING OPPOSITE ENDS OF AN ELONGATE WORKPIECE SUPPORTED BETWEEN CENTERS ON THE SPINDLES. THE DRIVE MEANS BETWEEN EACH SPINDLE AND ONE END FACE OF THE WORKPIECE, IS A PURELY FRICTIONAL DRIVE MEANS THE EFFECTIVENESS OF WHICH IS AIDED BY A HIGH-PRESSURE AUXILIARY MEANS TO ELEVATE AND MAINTAIN THE FORCE OF FRICTIONAL CONTACT BETWEEN THE WORK-
PIECE END AND A UNIQUE FRICTION-RING ASSEMBLY ON THE SPINDLE INVOLVING HARD AND SOFT POLYURETHANE TRANSMISSION MEMBERS. THE PUMP-MOTORS, TWO OF WHICH OPERATE AS SPINDLE DRIVERS, WHILE ONE OPERATES AS A PUMP DELIVERING OPERATING FLUID TO THE OTHERS, ARE ALL IDENTICAL AND INTERCHANGEABLE WITH ONE ANOTHER IN THE INTERESTS OF ECONOMICAL MAINTENANCE AND SPEEDY REPLACEMENTS. |
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| 106 | Cleated anchor plate | US3529370D | 1968-11-08 | US3529370A | 1970-09-22 | BERNIER LOUIS E; GIBLIN JAMES P |
| 107 | Lathe carrier center | US3518905D | 1968-06-05 | US3518905A | 1970-07-07 | ROHM GUNTER HORST |
| 108 | Hydraulic center and driver | US3484809D | 1968-02-05 | US3484809A | 1969-12-16 | SWENSON HENRY F |
| 109 | Face driving chucks for machine tools | US82695159 | 1959-07-14 | US3143907A | 1964-08-11 | GIOVANNI ULRICH |
| 110 | Door operator | US6356260 | 1960-10-19 | US3104098A | 1963-09-17 | KRISTUPAS DAUGIRDAS |
| 111 | Work driver | US72193058 | 1958-03-17 | US3010349A | 1961-11-28 | BARTUS RAYMOND J |
| 112 | Lathe point | US71013658 | 1958-01-20 | US2971413A | 1961-02-14 | HORST ROHM GUNTHER |
| 113 | Headstock for lathes and the like | US65383557 | 1957-04-19 | US2909955A | 1959-10-27 | WILLIAMS THURSTON V |
| 114 | Automatic machine tool | US11042749 | 1949-08-15 | US2653503A | 1953-09-29 | CORMIER GERARD A |
| 115 | Means for engaging and driving rotated workpieces | US8242349 | 1949-03-19 | US2576704A | 1951-11-27 | SMITH EDWIN R |
| 116 | Work locating and driving mechanism | US72749247 | 1947-02-10 | US2576497A | 1951-11-27 | AUSTIN SR DONALD D; DAVIS KENNETH J |
| 117 | Headstock and spindle | US62798445 | 1945-11-13 | US2545858A | 1951-03-20 | JOSE PESQUEIRA JUVENTINO; ROBERT KURZWEIL |
| 118 | Center | US64454846 | 1946-01-31 | US2531809A | 1950-11-28 | ROBERT FISH JOHN |
| 119 | Live center | US13077337 | 1937-03-13 | US2131327A | 1938-09-27 | LIPPARD VAN F |
| 120 | Lathe center | US7581036 | 1936-04-22 | US2077293A | 1937-04-13 | WEAVER WILLIAM C |
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