US3764047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary nozzle for ladle
Assignee: Kokan Kikai Kogyo KK
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Filing: 1972-03-06
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Granted: 1973-10-09
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Expires: 1992-03-06
Abstract
Abstract A rotary nozzle for a ladle which is comprised of a fixed disc provided at a lower end portion of a nozzle at the bottom of a ladle and a rotor mounting thereon. A sliding disc is provided with a plurality of nozzle bores in surface contact with the lower surface of the fixed disc, and a rotor is provided with lower nozzles communicating with the nozzle bores. A main frame is provided with a releasable stopping mechanism with leveractuated means for removably attaching the rotor therein. A rotary driving mechanism provides normal and reverse rotation to the rotor. The rotor is freely removable merely by releasing the releasable stopping mechanism to remove the sliding disc, to thereby permit simple replacement of the rotor.
Inventors
- 👤 I Inoue
- 👤 S Sekine
- 👤 T Hirose
- 👤 K Matsumoto
- 👤 N Miyagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:20
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/22; B22D41/26; A; A23; A23G; A23G3/00; A23G3/02; A23G3/0236; A23G3/0252; A23G3/0257; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6497
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
284 words
Rotary nozzle for a ladle comprising: a fixed disk (5) provided at a lower end portion of a nozzle (1) at a bottom of a ladle; a sliding disk (6) having a plurality of nozzle bores (7,8,9) and having a major surface in surface contact with a lower surface of said fixed disk (5), said sliding disk (6) being movable relative to said fixed disk and having one of said bores (7,8,9) in selective registration with said nozzle (1); a rotor (13) mounted adjacent the other major surface of said sliding disk (6), said rotor (13) having lower nozzles (10,11,12) selectively communicated with said nozzle bores (7,8,9) of said sliding disk (6); a main frame provided with a mechanism for removably attaching said rotor (13) thereto, said attaching mechanism comprising a lever (25) pivotally coupled at a point (26) intermediate its ends to said main frame (16,17), said lever (25) being selectively pivotal about said pivot point (26) generally in a first plane, and a roller (28) on one end portion of said lever (25) for bearing against a portion of said rotor (13) when said lever (25) is pivoted in a first direction to engage and retain said rotor (13) in position against said sliding plate, said roller (28) disengaging from and releasing said rotor (13) when said lever (25) is pivoted in the opposite direction, said roller (28) rolling relative to said rotor (13) during pivotal movement of said lever (25) with said lever in engagement with said rotor; and a rotary driving mechanism (18,21,22,23,24) for providing normal and reverse rotation to said rotor (13), said rotor and sliding disk being freely removable from said driving mechanism by releasing said attaching mechanism.
Claim 2
Dependent Claim
284 words
Rotary nozzle for a ladle comprising: a fixed disk (5) provided at a lower end portion of a nozzle (1) at a bottom of a ladle; a sliding disk (6) having a plurality of nozzle bores (7,8,9) and having a major surface in surface contact with a lower surface of said fixed disk (5), said sliding disk (6) being movable relative to said fixed disk and having one of said bores (7,8,9) in selective registration with said nozzle (1); a rotor (13) mounted adjacent the other major surface of said sliding disk (6), said rotor (13) having lower nozzles (10,11,12) selectively communicated with said nozzle bores (7,8,9) of said sliding disk (6); a main frame provided with a mechanism for removably attaching said rotor (13) thereto, said attaching mechanism comprising a lever (25) pivotally coupled at a point (26) intermediate its ends to said main frame (16,17), said lever (25) being selectively pivotal about said pivot point (26) generally in a first plane, and a roller (28) on one end portion of said lever (25) for bearing against a portion of said rotor (13) when said lever (25) is pivoted in a first direction to engage and retain said rotor (13) in position against said sliding plate, said roller (28) disengaging from and releasing said rotor (13) when said lever (25) is pivoted in the opposite direction, said roller (28) rolling relative to said rotor (13) during pivotal movement of said lever (25) with said lever in engagement with said rotor; and a rotary driving mechanism (18,21,22,23,24) for providing normal and reverse rotation to said rotor (13), said rotor and sliding disk being freely removable from said driving mechanism by releasing said attaching mechanism.
Claim 3
Dependent Claim
37 words
Rotary nozzle according to claim 1 wherein said attaching mechanism further comprises means (36,37) communicating with the other end portion of said lever (25) for causing said lever (25) to selectively pivot about said pivot point (26).
Claim 4
Dependent Claim
25 words
Rotary nozzle according to claim 1 wherein said lever (25) is pivotable in a second plane which is angularly oriented relative to said first plane.
Claim 5
Dependent Claim
17 words
Rotary nozzle according to claim 3 wherein said second plane is substantially perpendicular to said first plane.
Claim 6
Dependent Claim
47 words
Rotary nozzle according to claim 3 wherein said attaching mechanism includes means for biasing said lever to pivot about said pivot point in said second plane so as to cause said roller to be biased against said rotor, to thereby maintain and press said rotor in position.
Claim 7
Dependent Claim
100 words
Rotary nozzle according to claim 5 wherein said biasing means comprises spring means operating against the end portion of said lever which is opposite from said roller. 7 Rotary nozzle according to claim 1 wherein said ladle carries a plurality of fixed disks, sliding disks and rotors, and wherein said main frame carries a plurality of pivotal levers respectively coupled to each of said rotors for removably attaching said rotors to said ladle, said attaching mechanism further comprising means coupled to each of said levers for simultaneously operating all of said levers for simultaneous releasing of all of said rotors.
Claim 8
Dependent Claim
50 words
Rotary nozzle according to claim 7 wherein said fixed and sliding disks, and said rotors are arranged about the periphery of a circular ladle, and said main frame comprises a ring-shaped retainer plate with means coupling said retainer plate to said levers for imparting said pivotal movement to said levers.
Claim 9
Dependent Claim
47 words
Rotary nozzle according to claim 8 wherein said attaching mechanism further comprises an actuator screw means which is selectively actuated to impart movement to said retainer plate to cause pivotal movement of said levers, and a universal joint coupling said actuator screw means to said retainer plate.
Claim 10
Dependent Claim
41 words
Rotary nozzle according to claim 6 wherein said biasing means comprises a fixed stop member for permitting only a predetermined degree of movement of said lever in said second plane due to displacement of said rotor during use of said ladle.
Claim 11
Dependent Claim
44 words
Rotary nozzle according to claim 1 wherein said rotary driving mechanism includes motor means, a first bevel gear coupled to said motor means and a second bevel gear coupled to said first bevel gear and to said rotor to impart rotation to said rotor.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |