US3869774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid bearing table roll
Assignee: Mount Hope Machinery Co
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Filing: 1974-01-28
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Granted: 1975-03-11
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Expires: 1994-01-28
Abstract
Abstract A roll comprises a rigid annular sleeve of circular crosssection rotatably supported on a stationary axle by a series of elastomeric fluid bearing members capable of conforming to deviations from roundness of the inside wall of the sleeve. The bearing members are mounted adjustably on the axle, and are located by spacers with square-ground ends, so that they may provide accurately aligned and parallel rotational axes for the shell. The bearing members are fed with lubricating fluid by metering orifices, which open into pads on the bearing surfaces which have the same radius as the inside wall of the shell; the remainder of the bearing peripheries are relieved to permit assembly with the shell. A special arrangement of a regulating valve and by-pass valve in the fluid supply system permits a lower pressure to be applied during normal rotation of the roll, and a higher pressure to be applied to insure lifting of the shell from the pads during startup, and also at periodic intervals to clean the orifices in the bearings. A poppet valve is interposed between the supply and the orifices of each bearing, which opens to provide an increased flow rate when the higher pressure is applied, but which is biased closed against the normal lower pressure. By-pass passages in the seats of the poppet valves pass a normal lower rate of flow to the bearing orifices.
Inventors
- 👤 James O Gallant
- 👤 Robert E Staples
- 👤 George P Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:34
CPC Classifications
F; F16; F16C; F16C13/00; D; D21; D21F; D21F1/00; D21F1/36; D21F1/40
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
268 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially spaced relation along said axle and rotatably mounting said shell thereon; means mounting said bearing elements on said axle for adjustment transversely to said longitudinal axis thereof to permit alignment of rotational axes of said shell about each of said bearing elements; peripheral portions of said bearing elements being formed of elastomeric material and being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto, said peripheral portions surrounding said orifices and having substantially the same radius as the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius; and supply means for delivering a flow of lubricating fluid under pressure through said bearing elements to said orifices, said supply means comprising conduit means communicating with said orifices and at least one valve means interposed in said conduit means; said valve means including a valve member, means biasing said valve member to a closed position against a normal pressure of the supply of fluid, and a channel by-passing a normal rate of flow of fluid to said orifices around said valve member when the latter is in a closed position, said valve means being constructed and arranged to open under a pressure of the fluid greater than said normal pressure to increase the rate of flow of the fluid to said orifices above said normal rate.
Claim 2
Dependent Claim
268 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially spaced relation along said axle and rotatably mounting said shell thereon; means mounting said bearing elements on said axle for adjustment transversely to said longitudinal axis thereof to permit alignment of rotational axes of said shell about each of said bearing elements; peripheral portions of said bearing elements being formed of elastomeric material and being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto, said peripheral portions surrounding said orifices and having substantially the same radius as the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius; and supply means for delivering a flow of lubricating fluid under pressure through said bearing elements to said orifices, said supply means comprising conduit means communicating with said orifices and at least one valve means interposed in said conduit means; said valve means including a valve member, means biasing said valve member to a closed position against a normal pressure of the supply of fluid, and a channel by-passing a normal rate of flow of fluid to said orifices around said valve member when the latter is in a closed position, said valve means being constructed and arranged to open under a pressure of the fluid greater than said normal pressure to increase the rate of flow of the fluid to said orifices above said normal rate.
Claim 3
Dependent Claim
268 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially spaced relation along said axle and rotatably mounting said shell thereon; means mounting said bearing elements on said axle for adjustment transversely to said longitudinal axis thereof to permit alignment of rotational axes of said shell about each of said bearing elements; peripheral portions of said bearing elements being formed of elastomeric material and being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto, said peripheral portions surrounding said orifices and having substantially the same radius as the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius; and supply means for delivering a flow of lubricating fluid under pressure through said bearing elements to said orifices, said supply means comprising conduit means communicating with said orifices and at least one valve means interposed in said conduit means; said valve means including a valve member, means biasing said valve member to a closed position against a normal pressure of the supply of fluid, and a channel by-passing a normal rate of flow of fluid to said orifices around said valve member when the latter is in a closed position, said valve means being constructed and arranged to open under a pressure of the fluid greater than said normal pressure to increase the rate of flow of the fluid to said orifices above said normal rate.
Claim 4
Dependent Claim
268 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially spaced relation along said axle and rotatably mounting said shell thereon; means mounting said bearing elements on said axle for adjustment transversely to said longitudinal axis thereof to permit alignment of rotational axes of said shell about each of said bearing elements; peripheral portions of said bearing elements being formed of elastomeric material and being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto, said peripheral portions surrounding said orifices and having substantially the same radius as the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius; and supply means for delivering a flow of lubricating fluid under pressure through said bearing elements to said orifices, said supply means comprising conduit means communicating with said orifices and at least one valve means interposed in said conduit means; said valve means including a valve member, means biasing said valve member to a closed position against a normal pressure of the supply of fluid, and a channel by-passing a normal rate of flow of fluid to said orifices around said valve member when the latter is in a closed position, said valve means being constructed and arranged to open under a pressure of the fluid greater than said normal pressure to increase the rate of flow of the fluid to said orifices above said normal rate.
Claim 5
Dependent Claim
74 words
A roll as recited in claim 1, said supply means further including a pressure-regulating valve means interposed in said conduit means ahead of said first-mentioned valve means and adapted to pass said normal pressure of the fluid supply thereto, said conduit means having a branch passage by-passing said pressure-regulating valve means, and a third valve means interposed in said branch passage and selectively operable to deliver said greater-than-normal pressure to said first-mentioned valve means.
Claim 6
Dependent Claim
27 words
A roll as recited in claim 2, together with a timer constructed and arranged for controlling the frequency and duration of opening of said third valve means.
Claim 7
Dependent Claim
29 words
A roll as recited in claim 1, said axle having a circular cross-section, said bearing elements comprising rings having a larger inside diameter than the diameter of said axle.
Claim 8
Dependent Claim
36 words
A roll as recited in claim 4, said mounting means comprising a plurality of screws threaded in each of said bearing elements and abutting against said axle, said screws being circumferentially spaced about said bearing elements.
Claim 9
Dependent Claim
100 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially-spaced relation along said axle and rotatably mounting said shell thereon; peripheral portions of said bearing elements being formed of elastomeric material conformable to the interior surface of said shell, said peripheral portions being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto; and supply means for delivering a flow of lubricating fluid under pressure to said orifices.
Claim 10
Dependent Claim
100 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially-spaced relation along said axle and rotatably mounting said shell thereon; peripheral portions of said bearing elements being formed of elastomeric material conformable to the interior surface of said shell, said peripheral portions being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto; and supply means for delivering a flow of lubricating fluid under pressure to said orifices.
Claim 11
Dependent Claim
41 words
A roll as recited in claim 6, said peripheral portions surrounding said orifices and having substantially the same radius as the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius.
Claim 12
Dependent Claim
115 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially-spaced relation along said axle and rotatably mounting said shell thereon; means mounting said bearing elements on said axle for adjustment transversely to said longitudinal axis thereof to permit alignment of rotational axes of said shell about each of said bearing elements; peripheral portions of said bearing elements being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto; and supply means for delivering a flow of lubricating fluid under pressure to said orifices.
Claim 13
Dependent Claim
115 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially-spaced relation along said axle and rotatably mounting said shell thereon; means mounting said bearing elements on said axle for adjustment transversely to said longitudinal axis thereof to permit alignment of rotational axes of said shell about each of said bearing elements; peripheral portions of said bearing elements being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto; and supply means for delivering a flow of lubricating fluid under pressure to said orifices.
Claim 14
Dependent Claim
29 words
A roll as recited in claim 8, said axle having a circular cross-section, said bearing elements comprising rings having a larger inside diameter than the diameter of said axle.
Claim 15
Dependent Claim
36 words
A roll as recited in claim 9, said mounting means comprising a plurality of screws threaded in each of said bearing elements and abutting against said axle, said screws being circumferentially spaced about said bearing elements.
Claim 16
Dependent Claim
132 words
A roll for supporing a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially-spaced relation along said axle and rotatably mounting said shell thereon; portions of the peripheries of said bearing elements being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto, each of said peripheral portions including a pad surrounding a corresponding orifice and having a uniform radius substantially the same as the adjacent portion of the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius; and supply means for delivering a flow of lubricating fluid under pressure to said orifices.
Claim 17
Dependent Claim
132 words
A roll for supporing a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially-spaced relation along said axle and rotatably mounting said shell thereon; portions of the peripheries of said bearing elements being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto, each of said peripheral portions including a pad surrounding a corresponding orifice and having a uniform radius substantially the same as the adjacent portion of the interior surface of said shell, the remainder of the peripheries of said bearing elements being reduced to a smaller radius; and supply means for delivering a flow of lubricating fluid under pressure to said orifices.
Claim 18
Dependent Claim
28 words
A roll as recited in claim 11, each of said peripheral portions having a flattened recess surrounding an orifice communicating therewith, said recess being surrounded by said pad.
Claim 19
Dependent Claim
197 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially spaced relation along said axle and rotatably mounting said shell thereon; peripheral portions of said bearing elements being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto; and supply means for delivering a flow of lubricating fluid under pressure through said bearing elements to said orifices, said supply means comprising conduit means communicating with said orifices and at lEast one valve means interposed in said conduit means; said valve means including a valve member, means biasing said valve member to a closed position against a normal pressure of the supply of fluid, and a channel by-passing a normal rate of flow of fluid to said orifices around said valve member when the latter is in a closed position, said valve means being constructed and arranged to open under a pressure of the fluid greater than said normal pressure to increase the rate of flow of the fluid to said orifices above said normal rate.
Claim 20
Dependent Claim
197 words
A roll for supporting a travelling element, comprising in combination: a stationary axle having a rectilinear longitudinal axis; an annular shell of circular cross-section received about said axle; a series of fluid bearing elements received in axially spaced relation along said axle and rotatably mounting said shell thereon; peripheral portions of said bearing elements being formed with orifices communicating with the interior of said shell for delivering lubricating fluid thereto; and supply means for delivering a flow of lubricating fluid under pressure through said bearing elements to said orifices, said supply means comprising conduit means communicating with said orifices and at lEast one valve means interposed in said conduit means; said valve means including a valve member, means biasing said valve member to a closed position against a normal pressure of the supply of fluid, and a channel by-passing a normal rate of flow of fluid to said orifices around said valve member when the latter is in a closed position, said valve means being constructed and arranged to open under a pressure of the fluid greater than said normal pressure to increase the rate of flow of the fluid to said orifices above said normal rate.
Claim 21
Dependent Claim
74 words
A roll as recited in claim 13, said supply means further including a pressure-regulating valve means interposed in said conduit means ahead of said first-mentioned valve means and adapted to pass said normal pressure of the fluid supply thereto, said conduit means having a branch passage by-passing said pressure-regulating valve means, and a third valve means interposed in said branch passage and selectively operable to deliver said greater-than-normal pressure to said first-mentioned valve means.
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |