US3880302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive and support mechanism for rotary and angularly adjustable member
Assignee: Paul Wurth SA
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Filing: 1973-06-11
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Granted: 1975-04-29
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Expires: 1993-06-11
Abstract
Abstract A rotary and angularly adjustable member, disclosed in the form of a charge distribution chute mounted within a furnace, may have its angle of inclination adjusted independently of the rotation. The drive and support mechanism includes a rotary housing and a pair of oppositely disposed gear boxes carried by the rotary housing. The adjustable member is supported on drive shafts extending from the gear boxes and is thus rotatable with the housing and angularly adjustable about the axis of rotation of the housing; angular adjustment being achieved by means of rotating the drive shafts. The angular adjustment producing portion of the drive mechanism may include elastic gear means for dividing applied torque between the two boxes.
Inventors
- 👤 Edouard Legille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:34
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/18; C21B7/20; F; F16; F16H; F16H37/00; F16H2700/00; F16H2700/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
200 words
A drive and support mechanism for a rotary and angularly adjustable material distribution chute positioned internally of a furnace comprising: generally annular rotary support means positioned coaxially of a port in the furnace wall, and supporting the distribution chute, said support means being located externally of the furnace; means for imparting rotational motion to said support means; first and second gear box means mounted on said support means and movable therewith, said gear box means being oppositely disposed with respect to the distribution chute and each other and supporting drive gear means; drive shaft means extending from each of said gear box means, said drive shaft means being operatively associated with said drive gear means and being disposed in the same plane for rotation about an axis transverse to the axis of rotation of said support means; means rigidly connecting oppositely disposed points on the distribution chute to respective of said drive shaft means whereby the chute will follow the movements of said support means and said drive shaft means; and means including the drive gear means in said gear box means for transmitting rotational motion to said drive shaft means independently of the rotary motion of said support means.
Claim 2
Dependent Claim
200 words
A drive and support mechanism for a rotary and angularly adjustable material distribution chute positioned internally of a furnace comprising: generally annular rotary support means positioned coaxially of a port in the furnace wall, and supporting the distribution chute, said support means being located externally of the furnace; means for imparting rotational motion to said support means; first and second gear box means mounted on said support means and movable therewith, said gear box means being oppositely disposed with respect to the distribution chute and each other and supporting drive gear means; drive shaft means extending from each of said gear box means, said drive shaft means being operatively associated with said drive gear means and being disposed in the same plane for rotation about an axis transverse to the axis of rotation of said support means; means rigidly connecting oppositely disposed points on the distribution chute to respective of said drive shaft means whereby the chute will follow the movements of said support means and said drive shaft means; and means including the drive gear means in said gear box means for transmitting rotational motion to said drive shaft means independently of the rotary motion of said support means.
Claim 3
Dependent Claim
57 words
The apparatus of claim 1 wherein said gear box means each comprise: enclosure means supported from said annular support means, said enclosure means being mounted from said annular support means on the side thereof disposed away from the furnace, said encloSure means being adapted to contain a reservoir of lubricant for the drive gear means disposed therein.
Claim 4
Dependent Claim
62 words
The apparatus of claim 2 wherein said means for imparting rotational motion to said support means comprises: a main drive motor positioned remotely from said support means and having an output shaft; transmission means including a rotary sleeve for coupling said main drive motor output shaft to said support means; and bearing means for supporting said support means for the furnace superstructure.
Claim 5
Dependent Claim
88 words
The apparatus of claim 3 wherein said means for transmitting rotational motion to said drive shaft means comprises: planetary gear means including a planet gear, intermediate gear means and an inner gear; means coupling said planetary gear means planet gear to said main drive motor; an auxiliary drive motor; means coupling said planetary gear means inner gear to said auxiliary drive motor; and means transmitting motion imparted to said planetary gear means intermediate gear means to the drive gear means supported within each of said gear box means.
Claim 6
Dependent Claim
66 words
The apparatus of claim 3 wherein said means for transmitting rotational motion to said drive shaft means comprises: means for generating a torque commensurate with desired angular position changes of the material distribution chute; and first and second elastic gear means for dividing and transmitting the torque provided by said generating means to the drive gear means disposed in said first and second gear box means.
Claim 7
Dependent Claim
73 words
The apparatus of claim 5 wherein said means for generating torque comprises: planetary gear means including a planet gear, intermediate gear means and an inner gear; means coupling said planetary gear means planet gear to said main drive motor; an auxiliary drive motor; means coupling said planetary gear means inner gear to said auxiliary drive motor; and means coupling said planetary gear means intermediate gear means to both of said elastic gear means.
Claim 8
Dependent Claim
120 words
The apparatus of claim 6 wherein said elastic gear means each comprise: a drive disc; a counter-disc, said counter-disc being provided with projections thereon; a ring gear, said ring gear being coupled to said planetary gear means intermediate gear means and being provided with projections thereon which mesh with said counter-disc projections; means rotatably supporting said ring gear being sandwiched between said driving disc and counter-disc; means for adjustably connecting said drive disc to said counter-disc, said adjustable connecting means permitting a limited relative rotational displacement between said counter-disc and driving disc; spring means coupling the projections on said counter-disc to the projections on said ring gear; and means coupling said interconnected discs to the gear box drive gear means.
References Cited (Backward Citations)
US1710544A
Cited
US3693812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |