US3656330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for distributing liquid over a surface
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1970-02-20
•
Granted: 1972-04-18
•
Expires: 1990-02-20
Abstract
Abstract Liquid is distributed at a substantially desired uniform rate per unit area on a surface having a dimension which varies in a predetermined manner by projecting at the surface a divergent stream of the liquid from a nozzle which can be moved towards and away from the surface, the rate of supply of liquid to the nozzle being substantially proportional to the distance between the nozzle and the surface. The invention is useful in applying a wear-resisting liquid coating to the rolls of hot metal rolling stand, the chosen rate of discharge being sufficient to mitigate wear of the work rolls without derogating from their performance.
Inventors
- 👤 Thomas W Brown
- 👤 John S Lemlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:52
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0233; B05; B05B; B05B13/00; B05B13/02; B05B13/0207; B05B15/00; B05B15/60; B05B15/68; B05D; B05D1/00; B05D1/02; B21B27/00; B21B27/06; B21B27/10; B21B45/0239; B21B45/0242
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
167 words
A method for applying a lubricating wear-resisting liquid to at least one roll of a hot metal rolling stand in which metal strip varying in width is rolled, comprising: a. projecting a divergent stream of said lubricating liquid upon a selected width of the surface of said roll from a movably mounted nozzle; b. moving the nozzle toward and away from said roll; c. regulating the flow rate of said lubricating liquid through said nozzle; d. sensing the width of the metal strip being rolled; e. coordinating the position of the nozzle relative to the roll surface as a function of the sensed width of the metal strip being rolled so that the selected width of the roll substantially corresponds to the sensed width of the metal strip and simultaneously varying the rate of flow of lubricating liquid from said nozzle as the nozzle position varies to provide a substantially uniform rate of liquid flow per unit area of roll surface being wetted by the lubricating liquid.
Claim 2
Independent Claim
167 words
A method for applying a lubricating wear-resisting liquid to at least one roll of a hot metal rolling stand in which metal strip varying in width is rolled, comprising: a. projecting a divergent stream of said lubricating liquid upon a selected width of the surface of said roll from a movably mounted nozzle; b. moving the nozzle toward and away from said roll; c. regulating the flow rate of said lubricating liquid through said nozzle; d. sensing the width of the metal strip being rolled; e. coordinating the position of the nozzle relative to the roll surface as a function of the sensed width of the metal strip being rolled so that the selected width of the roll substantially corresponds to the sensed width of the metal strip and simultaneously varying the rate of flow of lubricating liquid from said nozzle as the nozzle position varies to provide a substantially uniform rate of liquid flow per unit area of roll surface being wetted by the lubricating liquid.
Claim 3
Dependent Claim
32 words
A method according to claim 1 in which the flow rate of liquid through the nozzle is coordinated with the distance of the nozzle from the surface according to a predetermined program.
Claim 4
Dependent Claim
34 words
A method according to claim 1 in which the flow-rate of liquid through the nozzle is adjusted manually in dependence with the distance of the nozzle from the surface according to a predetermined program.
Claim 5
Dependent Claim
14 words
A method according to claim 1 in which the nozzle movement is remotely controlled.
Claim 6
Dependent Claim
22 words
A method according to claim 1 in which the nozzle movement is remotely controlled and manually effected according to a predetermined program.
Claim 7
Dependent Claim
19 words
A method according to claim 1 in which the liquid forms a wear-resisting film or coating on the roll.
Claim 8
Dependent Claim
41 words
A method according to claim 1 in which a carrier liquid is projected continuously at the roll surface, and at predetermined periods in accordance with the operating program of the rolling stand, the wear-resisting liquid is dispersed in the carrier liquid.
Claim 9
Dependent Claim
32 words
A method according to claim 1 in which the wear-resisting liquid is immiscible in the carrier liquid and has a higher affinity for the surface of the roll than the carrier liquid.
Claim 10
Dependent Claim
14 words
A method according to claim 1 in which the wear-resisting liquid comprises an ester.
Claim 11
Dependent Claim
23 words
A method according to claim 1 in which the ester is a sterically hindered ester having a quaternary carbon atom in its molecules.
Claim 12
Dependent Claim
22 words
A method according to claim 1 in which the wear-resisting liquid comprises free carboxylic acid and/or partial esters having free hydroxyl groups.
Claim 13
Dependent Claim
25 words
A method according to claim 1 in which the wear-resisting liquid comprises free carboxylic acid, partial esters with free hydroxyl groups, and mixtures of both.
Claim 14
Dependent Claim
50 words
A method according to claim 1 in which the supply of wear-resisting liquid is initiated shortly after the head end of a metal workpiece has passed into the bite of the rolling stand and terminated shortly before the tail end of the workpiece passes into the bite of the stand.
Claim 15
Dependent Claim
50 words
A method according to claim 1 in which the supply of wear-resisting liquid is initiated shortly after the head end of a metal workpiece has passed into the bite of the rolling stand and terminated shortly before the tail end of the workpiece passes into the bite of the stand.
Claim 16
Dependent Claim
32 words
A method according to claim 1 in which the selected width is from 100 to 120 percent of the width of a workpiece which is to be rolled in the rolling stand.
Claim 17
Independent Claim
191 words
An apparatus for applying a lubricating wear-resisting liquid to at least one roll of a hot metal rolling stand in which metal strip varying in width is rolled, comprising: a. a nozzle mounted for projecting a divergent stream of said lubricating liquid upon a selected width of the surface of said roll; b. means for moving the nozzle toward and away from said roll; c. means connecting said nozzle to a supply of said lubricating liquid; d. means for regulating the flow-rate of said lubricating liquid through said nozzle; e. means for sensing the width of the metal strip being rolled; f. coordinating means operably connected with the width sensing means for positioning the nozzle relative to the roll surface as a function of the sensed width of the metal strip being rolled so that the selected width of the roll substantially corresponds to the sensed width of the metal strip and for simultaneously varying the rate of flow of lubricating liquid from said nozzle as the nozzle position varies to provide a substantially uniform rate of liquid flow per unit area of roll surface being wetted by the lubricating liquid.
Claim 18
Independent Claim
191 words
An apparatus for applying a lubricating wear-resisting liquid to at least one roll of a hot metal rolling stand in which metal strip varying in width is rolled, comprising: a. a nozzle mounted for projecting a divergent stream of said lubricating liquid upon a selected width of the surface of said roll; b. means for moving the nozzle toward and away from said roll; c. means connecting said nozzle to a supply of said lubricating liquid; d. means for regulating the flow-rate of said lubricating liquid through said nozzle; e. means for sensing the width of the metal strip being rolled; f. coordinating means operably connected with the width sensing means for positioning the nozzle relative to the roll surface as a function of the sensed width of the metal strip being rolled so that the selected width of the roll substantially corresponds to the sensed width of the metal strip and for simultaneously varying the rate of flow of lubricating liquid from said nozzle as the nozzle position varies to provide a substantially uniform rate of liquid flow per unit area of roll surface being wetted by the lubricating liquid.
Claim 19
Dependent Claim
14 words
An apparatus according to claim 16 in which the nozzle movement is remotely controlled.
Claim 20
Dependent Claim
22 words
An apparatus according to claim 16 in which the nozzle movement is remotely controlled and manually effected according to a predetermined program.
Claim 21
Dependent Claim
41 words
An apparatus according to claim 16 in which there are two rolls disposed on opposite sides of the bite of the roll stand, there being for each of said rolls a nozzle movably mounted for projecting said liquid onto said roll.
Claim 22
Dependent Claim
30 words
An apparatus according to claim 19 wherein each roll is sprayed with liquid at a substantially desired rate per unit area over a predetermined width according to a predetermined program.
Claim 23
Dependent Claim
46 words
An apparatus according to claim 20 in which during a hot metal rolling operation, the nozzles are so located relative to their respective rolls that the width of the rolls sprayed is a fixed proportion of, and at least equal to, the width of the workpiece.
Claim 24
Dependent Claim
28 words
An apparatus according to claim 20 comprising means for controlling the concentration of a roll-coating liquid in the liquid projected from each nozzle according to a predetermined program.
Claim 25
Dependent Claim
82 words
An apparatus according to claim 16 comprising means for generating a first signal indicating that the head end of a workpiece has at least entered the bite of the rolling stand, means for generating a second signal indicating the approach of the tail end of the workpiece towards the bite, and control means which respond to the first signal to initiate the addition of the roll-coating liquid and which respond to the second signal to terminate the addition of the roll-coating liquid.
Claim 26
Dependent Claim
16 words
A rolling mill comprising at least one rolling stand comprising apparatus in accordance with claim 23.
Claim 27
Dependent Claim
22 words
A method according to claim 1 in which the nozzle movement is remotely controlled and automatically effected according to a predetermined program.
Claim 28
Dependent Claim
22 words
An apparatus according to claim 16 in which the nozzle movement is remotely controlled and automatically effected according to a predetermined program.
References Cited (Backward Citations)
US1982571A
Cited
US1994691A
Cited
US1994721A
Cited
US2849905A
Cited
US3150548A
Cited
US3200629A
Cited
US3208253A
Cited
US3289449A
Cited
US3423254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |