US3601837A - Apparatus for cleaning the edges of strip material by the application of fluid under pressure - Google Patents

Apparatus for cleaning the edges of strip material by the application of fluid under pressure Download PDF

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US3601837A
US3601837A US870752*A US3601837DA US3601837A US 3601837 A US3601837 A US 3601837A US 3601837D A US3601837D A US 3601837DA US 3601837 A US3601837 A US 3601837A
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strip
edge
tube
cleaning
edges
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US870752*A
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Lucas J Conrad
John R Everhart
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Archer Products Inc
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Archer Products Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/005—Edge deburring or smoothing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B08B5/023—Cleaning travelling work
    • B08B5/026—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices

Definitions

  • the fluid cleaning apparatus comprises a tube having anopen end and diametrically opposite slits through which the edge of the material passes. Compressed air is supplied to the hose and blows away any splinters or particles clinging to the edges. The compressed air cleaning is employed after a rolling or brushing operation.
  • the invention is particularly useful for rounding the edges of flat strips of foils of aluminum which are intended to be used as electrical windings or capacitors.
  • Such strips or foils are commonly first manufactured by cutting or slitting a wider strip or sheet, and have sharp corners at their edges resulting from the cutting or slitting operation. They may also have occasional slivers or small particles clinging to their edges.
  • the strip is either interleaved with an insulating material such a paper, or the strip may be coated with an insulating material before it is wound into a coil.
  • a clean, smoothly contoured edge is required to prevent puncture of the insulation by burrs, slivers, etc., to maintain purity of cooling and/or insulating fluid where a fluid-cooling is used, and to attenuate corona discharge.
  • a smooth curved surface facilitates a more uniform coating, since if the strip has a sharp comer, the surface tension of the liquid film will reduce the thickness of the coating at that comer.
  • the prior art teaches the use of edge-forming rolls having rounded grooves engaging the edge of a strip of metal and effective to produce a round contour on the strip.
  • Such rolls if employed according to the teachings of the prior art, are effective to form the edges, but have a tendency to produce ridges in the flat surfaces of a strip at a point adjacent the edges.
  • the prior art edge-forming rolls have a tendency to squeeze the strip laterally, thereby causing it to buckle in the middle. While this is not important in dealing with strips of substantial thickness and material of substantial strength, e.g., steel, it presents difficulties when dealing with weaker metals such as aluminum.
  • the invention comprises means defining a path for moving strip material, and edge-rolling and edge-cleaning means mounted to cooperate with a strip moving along that path.
  • a strip moving through the apparatus disclosed herein first encounters an edge-cleaning station, where the edges of the strip are brushed by a series of brushes rotating about horizontal axes aligned with the strip, with successive brushes turning in opposite directions.
  • the central portion of the strip passes between the upper and lower plenum chambers which are maintained under pressure, preferably by means of compressed air.
  • the strip After passing the edge-brushing station, the strip passes between two fluid edge cleaners, which comprise tubes or hose slit at their open end so that the edge passes through the slits.
  • the tubes are supplied compressed air, which issues in a high velocity stream so that any particles clinging to the edges are blown away.
  • the strip next passes to a rolling station where it encounters a first set of edge-thickness control rolls. These rolls engage the flat surfaces of the strip and overlap the edges thereof.
  • the strip passes through three sections of the rolling station, each section comprising two sets of edge-forming rolls followed by a single set of edge-thickness control rolls similar to the first one.
  • the strip passes another fluid edgecleaning station, similar to the one at the end of the edgebrushing station.
  • the strip next passes through a final cleaning station where it first encounters a set of brushes rotating on vertical axes and engaging the flat surfaces of the strip. This is followed by another fluid edge-cleaning and finally by another set of brushes rotating on horizontal axes and engaging the upper and lower flat surfaces of the strip.
  • FIG. 1 forms a fragmentary somewhat diagrammatic elevational view of an edge-rolling apparatus constructed in accordance with the invention, with many parts omitted for the sake of clarity.
  • FIG. 2 is a plan view of the apparatus of FIG. 1; I
  • FIG. 2A is a sectional view taken along the line 2A-2A of FIG. 2;
  • FIG. 3 is a sectional view taken on the line 33 of FIG. 2;
  • FIG. 4 is a plan view on an enlarged scale showing one of the fluid edge-cleaning units
  • FIG. 5 is an elevational view of the fluid edge-cleaning unit of FIG. 4;
  • FIG. 6 is a fragmentary view similar to a portion of FIG. 5, but on an enlarged scale.
  • FIGS. 1 and 2 These figures illustrate somewhat diagrammatically, a complete edge-rounding apparatus in accordance with the invention.
  • a coil 1 of strip aluminum is mounted on a supply reel 2 (shown as a fragment at the left end of FIG. 1
  • the aluminum passes as a strip 3 from the supply reel 2 to a pinch roll stand 4 of conventional construction, which regulates the tension in the strip.
  • the strip 3 passes through a first cleaning station 5, a rolling station 6, and a final cleaning station 7.
  • the pinch roll stand 4 comprises a rubber-faced watercooled I2 and a steel-faced roll 13.
  • the strip 3 is pinched between the two rolls.
  • the steel-faced roll drives a pneumatic, water-cooled brake generally indicated at 14, the drive being through pulleys and a belt 15.
  • the brake torque is adjustable by means of a bellcrank lever I6, which acts on a pneumatic load cell 17.
  • the longitudinal tension on the strip 3 as it passes through the cleaning station 5, the rolling station 6 and cleaning station 7 may be set and controlled by the brake 14.
  • the strip 3 passing through the cleaning station 5 passes between opposed rows of rotary brushes l8 turning on horizontal axes extending at right angles to the direction of movement of the strip. Between the brushes, the central portion of the strip passes between upper and lower plenum chambers 19 and 20 which are connected by suitably conduits 21 to a source of compressed air.
  • the edges of the plenum chambers where they contact the strip 3 are faced with nylon or other suitable material as shown at 22 so that the chambers do not mar or scratch the strip surface. Air is continuously leading between the strip ad the facings 22.
  • the entire cleaning and rolling apparatus shown in FIG. 1 including the precleaning station 5, the rolling station 6 and that part of the final cleaning station 7 which appears in FIG. 1, is mounted on a platform 23 having on its under surface downwardly projecting saddles 24 which rest on laterally extending rails 25.
  • the platform 23 may be driven along the rails by means of a pair of lead screws 26 (FIG. 2) which are driven by a chain 27 connected through suitable drive mechanism to a reversible motor 28.
  • the motor 28 is controlled by edge feelers 29, which appear at the left end of FIG. 2.
  • the feelers 29 normally have a small clearance from the edge of the strip. If either feeler is contacted by the strip edge, a lateral movement of the strip is indicated, since the strip is of substantially constant width.
  • the contacted feeler 29 actuates the motor 28, to drive the lead screws 26 in a direction to terminate contact between the edge of the strip and the feeler 29, whereupon operation of the motor is discontinued.
  • the entire cleaning stations and the rolling station are moved laterally and kept in alignment with the strip, so that substantially no stress can be placed on the strip due to a change in its lateral position.
  • the strip passes between two opposed fluid-operated edge cleaners 31, which are described in detail in connection with FIGS. 4 to 6 below.
  • the strip first passes between a pair of edge-thickness control rolls 32 and thence passes through three rolling station sections, each indicated by numeral 33.
  • the strip Upon entering the final cleaning station 7, the strip first passes through a second pair of fluid-operated cleaning devices 31 (see FIGS. 4 to 6) and then passes between an array of rotary brushes 34, rotating on vertical axes. One set of brushes 34 is located above the strip and the other set below the strip. After passing the brushes 34, the strip passes another pair of fluid-operated cleaning devices 31 and thence passes into the final section of the cleaning station 7.
  • FIGS. 4 to 6 These figures illustrate in detail the fluid pressure-cleaning device shown at 31 in FIGS. 1 and 2.
  • the device 31 consists of a tube 135, such as a flexible hose, extending through an aperture in a suitable fixed support 136.
  • the open end of the hose is slit at opposite locations, as shown at 135a.
  • the slits are preferably, but not necessarily, diametrically opposed.
  • the open end of the hose is spread apart so that the opposite halves overlap the marginal edge of the strip 3.
  • Air at high velocity is supplied through the tube 135 and passes out through the open end of the tube, and also between the walls of the tubes and the surfaces of the strip 3. The result is that a high velocity stream of air flows over the marginal and edge surfaces of the strip 3, thereby cleaning any loose materials which may be clinging to those surfaces.
  • the support 136 is provided with a lever arm 137 pivotally mounted on the support and having a wedge-shaped end 137a extending into the aperture through which the tube passes and adapted to engage and hold the tube 135 against movement.
  • the support '136 is also provided with a fixed knife blade 138 which spans the aperture through which the tube 135 is threaded. As the slit end of the tube wears away, additional lengths of tube can be pushed through the support 136. As the tube is so pushed, the knife 138 slits the tube 135 and prepares it for engagement with the strip 3.
  • the apparatus of FIGS. 4 to 6 may be used to supply cleaning fluids other than air. Furthermore, the apparatus may be used to supply fluids carrying abrasive particles, or fluids which act on the metal strip by virtue of their own chemical properties, as chemical-machining fluids, etching fluids, and the like.
  • edge-contouring of strip aluminum many features thereof are useful in the rolling of other metals, and some features are useful in processes other than edge-contouring, such as cleaning, abrading, chemical-machining, etc.
  • Apparatus for supplying treating fluid to the edge of a strip of material wherein the improvement comprises:
  • a flexible cylindrical tube having an open end and opposed slits in the tube extending longitudinally thereof from the open end and adapted to. receive an edge of the strip;
  • c. means for relatively moving the tube and the strip, with the edge of the strip passing through said slits.
  • Fluid supply apparatus as defined in claim 1, including releasable lock means for holding the tube against movement transverse of the strip.
  • Fluid supply apparatus as defined in claim 1, including knife means for slitting said tube as it is moved toward the strip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

The fluid cleaning apparatus comprises a tube having an open end and diametrically opposite slits through which the edge of the material passes. Compressed air is supplied to the hose and blows away any splinters or particles clinging to the edges. The compressed air cleaning is employed after a rolling or brushing operation.

Description

United States Patent- Lucas J. Conrad;
John R. Everlurt, both of Winston-Salem, N .C.
Aug. 28, 1969 Division of Ser. No. 632,758, Apr. 21, 1967, Pat. No. 3,479,852
[72] Inventors [21] Appl. No. [22] Filed [45] Patented Aug. 31, 1971 [73] Assignee Archer Products, Incorporated Winston-Salem, N.C.
[54] APPARATUS FOR CLEANING THE EDGES OF STRIP MATERIAL BY THE APPLICATION OF FLUID UNDER PRESSURE 3 Clalms, 7 Drawing Figs.
[52] U.S. Cl 15/302, 15/307, 15/308, 15/316, l5/339, 15/415, 51/8, 134/ l 22 B08b 5/02 [51] Int.C1
[50] Field of Search 15/100, 102, 301, 302, 303, 306, 307, 316, 405, 407, 415, 339, 394;134/9, 15,123
[56] References Cited UNITED STATES PATENTS 1,830,098 11/1931 Dollinger 15/405 2,178,849 11/1939 Breuer... 15/394 2,821,736 2/1958 Kasper 15/394 Primary ExaminerWalter A. Scheel Assistant Examiner-C. K. Moore Attorneys-Robert S. Dunham, R. J. Dearbom, P. E.
Henninger, Lester W. Clark, John A. Harvey, Thomas F. Moran and Gerald W. Griffin ABSTRACT: The fluid cleaning apparatus comprises a tube having anopen end and diametrically opposite slits through which the edge of the material passes. Compressed air is supplied to the hose and blows away any splinters or particles clinging to the edges. The compressed air cleaning is employed after a rolling or brushing operation.
CROSS REFERENCE This application is a division of my copending application Ser. No. 632,758, now US. Pat. No. 3,479,852, filed Apr. 21, 1967, for ROLLING APPARATUS FOR ROUNDING THE EDGES OF STRIP METAL.
BACKGROUND OF THE DISCLOSURE The invention is particularly useful for rounding the edges of flat strips of foils of aluminum which are intended to be used as electrical windings or capacitors. Such strips or foils are commonly first manufactured by cutting or slitting a wider strip or sheet, and have sharp corners at their edges resulting from the cutting or slitting operation. They may also have occasional slivers or small particles clinging to their edges.
The strip is either interleaved with an insulating material such a paper, or the strip may be coated with an insulating material before it is wound into a coil. A clean, smoothly contoured edge is required to prevent puncture of the insulation by burrs, slivers, etc., to maintain purity of cooling and/or insulating fluid where a fluid-cooling is used, and to attenuate corona discharge. In those cases where a liquid insulating coating is applied, a smooth curved surface facilitates a more uniform coating, since if the strip has a sharp comer, the surface tension of the liquid film will reduce the thickness of the coating at that comer.
The prior art teaches the use of edge-forming rolls having rounded grooves engaging the edge of a strip of metal and effective to produce a round contour on the strip. Such rolls, if employed according to the teachings of the prior art, are effective to form the edges, but have a tendency to produce ridges in the flat surfaces of a strip at a point adjacent the edges. Furthermore, the prior art edge-forming rolls have a tendency to squeeze the strip laterally, thereby causing it to buckle in the middle. While this is not important in dealing with strips of substantial thickness and material of substantial strength, e.g., steel, it presents difficulties when dealing with weaker metals such as aluminum.
SUMMARY OF THE INVENTION The invention comprises means defining a path for moving strip material, and edge-rolling and edge-cleaning means mounted to cooperate with a strip moving along that path. A strip moving through the apparatus disclosed herein first encounters an edge-cleaning station, where the edges of the strip are brushed by a series of brushes rotating about horizontal axes aligned with the strip, with successive brushes turning in opposite directions. In order to prevent the lateral force of the brushes from buckling the strip, the central portion of the strip passes between the upper and lower plenum chambers which are maintained under pressure, preferably by means of compressed air.
After passing the edge-brushing station, the strip passes between two fluid edge cleaners, which comprise tubes or hose slit at their open end so that the edge passes through the slits. The tubes are supplied compressed air, which issues in a high velocity stream so that any particles clinging to the edges are blown away.
The strip next passes to a rolling station where it encounters a first set of edge-thickness control rolls. These rolls engage the flat surfaces of the strip and overlap the edges thereof.
Following the edge-thickness control rolls, the strip passes through three sections of the rolling station, each section comprising two sets of edge-forming rolls followed by a single set of edge-thickness control rolls similar to the first one. Upon leaving the rolling station, the strip passes another fluid edgecleaning station, similar to the one at the end of the edgebrushing station. The strip next passes through a final cleaning station where it first encounters a set of brushes rotating on vertical axes and engaging the flat surfaces of the strip. This is followed by another fluid edge-cleaning and finally by another set of brushes rotating on horizontal axes and engaging the upper and lower flat surfaces of the strip.
DRAWINGS FIG. 1 forms a fragmentary somewhat diagrammatic elevational view of an edge-rolling apparatus constructed in accordance with the invention, with many parts omitted for the sake of clarity.
FIG. 2 is a plan view of the apparatus of FIG. 1; I
FIG. 2A is a sectional view taken along the line 2A-2A of FIG. 2;
FIG. 3 is a sectional view taken on the line 33 of FIG. 2;
FIG. 4 is a plan view on an enlarged scale showing one of the fluid edge-cleaning units;
FIG. 5 is an elevational view of the fluid edge-cleaning unit of FIG. 4;
FIG. 6 is a fragmentary view similar to a portion of FIG. 5, but on an enlarged scale.
DESCRIPTION OF THE INVENTION FIGS. 1 and 2 These figures illustrate somewhat diagrammatically, a complete edge-rounding apparatus in accordance with the invention.
A coil 1 of strip aluminum is mounted on a supply reel 2 (shown as a fragment at the left end of FIG. 1 The aluminum passes as a strip 3 from the supply reel 2 to a pinch roll stand 4 of conventional construction, which regulates the tension in the strip. From the pinch roll stand 4, the strip 3 passes through a first cleaning station 5, a rolling station 6, and a final cleaning station 7.
The principal features of novelty of the present invention are in the cleaning stations 5 and 7. The other parts of the apparatus will be only briefly described.
The pinch roll stand 4 comprises a rubber-faced watercooled I2 and a steel-faced roll 13. The strip 3 is pinched between the two rolls. The steel-faced roll drives a pneumatic, water-cooled brake generally indicated at 14, the drive being through pulleys and a belt 15. The brake torque is adjustable by means of a bellcrank lever I6, which acts on a pneumatic load cell 17. The longitudinal tension on the strip 3 as it passes through the cleaning station 5, the rolling station 6 and cleaning station 7 may be set and controlled by the brake 14.
The strip 3 passing through the cleaning station 5 passes between opposed rows of rotary brushes l8 turning on horizontal axes extending at right angles to the direction of movement of the strip. Between the brushes, the central portion of the strip passes between upper and lower plenum chambers 19 and 20 which are connected by suitably conduits 21 to a source of compressed air. The edges of the plenum chambers where they contact the strip 3 are faced with nylon or other suitable material as shown at 22 so that the chambers do not mar or scratch the strip surface. Air is continuously leading between the strip ad the facings 22.
The entire cleaning and rolling apparatus shown in FIG. 1 including the precleaning station 5, the rolling station 6 and that part of the final cleaning station 7 which appears in FIG. 1, is mounted on a platform 23 having on its under surface downwardly projecting saddles 24 which rest on laterally extending rails 25. The platform 23 may be driven along the rails by means of a pair of lead screws 26 (FIG. 2) which are driven by a chain 27 connected through suitable drive mechanism to a reversible motor 28. The motor 28 is controlled by edge feelers 29, which appear at the left end of FIG. 2. The feelers 29 normally have a small clearance from the edge of the strip. If either feeler is contacted by the strip edge, a lateral movement of the strip is indicated, since the strip is of substantially constant width. The contacted feeler 29 actuates the motor 28, to drive the lead screws 26 in a direction to terminate contact between the edge of the strip and the feeler 29, whereupon operation of the motor is discontinued. Thus, the entire cleaning stations and the rolling station are moved laterally and kept in alignment with the strip, so that substantially no stress can be placed on the strip due to a change in its lateral position.
At the end of the cleaning station 5, the strip passes between two opposed fluid-operated edge cleaners 31, which are described in detail in connection with FIGS. 4 to 6 below.
In the rolling station 6, the strip first passes between a pair of edge-thickness control rolls 32 and thence passes through three rolling station sections, each indicated by numeral 33.
Upon entering the final cleaning station 7, the strip first passes through a second pair of fluid-operated cleaning devices 31 (see FIGS. 4 to 6) and then passes between an array of rotary brushes 34, rotating on vertical axes. One set of brushes 34 is located above the strip and the other set below the strip. After passing the brushes 34, the strip passes another pair of fluid-operated cleaning devices 31 and thence passes into the final section of the cleaning station 7.
FIGS. 4 to 6 These figures illustrate in detail the fluid pressure-cleaning device shown at 31 in FIGS. 1 and 2.
The device 31 consists of a tube 135, such as a flexible hose, extending through an aperture in a suitable fixed support 136. The open end of the hose is slit at opposite locations, as shown at 135a. The slits are preferably, but not necessarily, diametrically opposed. The open end of the hose is spread apart so that the opposite halves overlap the marginal edge of the strip 3. Air at high velocity is supplied through the tube 135 and passes out through the open end of the tube, and also between the walls of the tubes and the surfaces of the strip 3. The result is that a high velocity stream of air flows over the marginal and edge surfaces of the strip 3, thereby cleaning any loose materials which may be clinging to those surfaces. The support 136 is provided with a lever arm 137 pivotally mounted on the support and having a wedge-shaped end 137a extending into the aperture through which the tube passes and adapted to engage and hold the tube 135 against movement. The support '136is also provided with a fixed knife blade 138 which spans the aperture through which the tube 135 is threaded. As the slit end of the tube wears away, additional lengths of tube can be pushed through the support 136. As the tube is so pushed, the knife 138 slits the tube 135 and prepares it for engagement with the strip 3.
The apparatus of FIGS. 4 to 6 may be used to supply cleaning fluids other than air. Furthermore, the apparatus may be used to supply fluids carrying abrasive particles, or fluids which act on the metal strip by virtue of their own chemical properties, as chemical-machining fluids, etching fluids, and the like.
Although the invention has been described in connection with the edge-contouring of strip aluminum, many features thereof are useful in the rolling of other metals, and some features are useful in processes other than edge-contouring, such as cleaning, abrading, chemical-machining, etc.
While we have shown and described certain preferred embodiments of our invention, other modifications thereof will readily occur to those skilled in the art, and we therefore intend our invention to be limited only by the appended claims.
1. Apparatus for supplying treating fluid to the edge of a strip of material, wherein the improvement comprises:
a. a flexible cylindrical tube having an open end and opposed slits in the tube extending longitudinally thereof from the open end and adapted to. receive an edge of the strip;
b. means supply treating fluid through said tube; and
c. means for relatively moving the tube and the strip, with the edge of the strip passing through said slits.
2. Fluid supply apparatus as defined in claim 1, including releasable lock means for holding the tube against movement transverse of the strip.
3. Fluid supply apparatus as defined in claim 1, including knife means for slitting said tube as it is moved toward the strip.

Claims (3)

1. Apparatus for supplying treating fluid to the edge of a strip of material, wherein the improvement comprises: a. a flexible cylindrical tube having an open end and opposed slits in the tube extending longitudinally thereof from the open end and adapted to receive an edge of the strip; b. means supply treating fluid through said tube; and c. means for relatively moving the tube and the strip, with the edge of the strip passing through said slits.
2. Fluid supply apparatus as defined in claim 1, including releasable lock means for holding the tube against movement transverse of the strip.
3. Fluid supply apparatus as defined in claim 1, including knife means for slitting said tube as it is moved toward the strip.
US870752*A 1969-08-28 1969-08-28 Apparatus for cleaning the edges of strip material by the application of fluid under pressure Expired - Lifetime US3601837A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805317A (en) * 1972-10-30 1974-04-23 Ex Cell Inc Industrial cleaning apparatus using air whip
US3907587A (en) * 1973-12-13 1975-09-23 Ppg Industries Inc Method and apparatus for removing broken-off chips from a sheet stacking station
US3950898A (en) * 1975-02-13 1976-04-20 Bowen Hilary T Safety razor blade water honer
USD273146S (en) 1981-09-04 1984-03-20 Grace Farr Vacuum cleaner intake member
US4601112A (en) * 1985-06-14 1986-07-22 Kaiser Aluminum & Chemical Corporation Liquid edgebead removal device
US5398372A (en) * 1993-10-29 1995-03-21 Kaiser Aluminum & Chemical Corporation Liquid edge bead removal device
US5440779A (en) * 1991-11-01 1995-08-15 Davy Mckee (Poole) Limited Moisture removal from metal strip
US5528820A (en) * 1992-05-14 1996-06-25 Usa Metals Corp. Method of making strip conductor for transformers
US6260231B1 (en) * 1999-02-19 2001-07-17 Speedline Technologies, Inc. Air knife drying system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830098A (en) * 1928-06-25 1931-11-03 Staynew Filter Corp Cleaning tool for filters
US2178849A (en) * 1938-04-25 1939-11-07 Breuer Electric Mfg Co Cleaning tool for blind slats
US2821736A (en) * 1954-04-13 1958-02-04 Royal Appliance Mfg Suction brush for venetian blinds

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830098A (en) * 1928-06-25 1931-11-03 Staynew Filter Corp Cleaning tool for filters
US2178849A (en) * 1938-04-25 1939-11-07 Breuer Electric Mfg Co Cleaning tool for blind slats
US2821736A (en) * 1954-04-13 1958-02-04 Royal Appliance Mfg Suction brush for venetian blinds

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805317A (en) * 1972-10-30 1974-04-23 Ex Cell Inc Industrial cleaning apparatus using air whip
US3907587A (en) * 1973-12-13 1975-09-23 Ppg Industries Inc Method and apparatus for removing broken-off chips from a sheet stacking station
US3950898A (en) * 1975-02-13 1976-04-20 Bowen Hilary T Safety razor blade water honer
USD273146S (en) 1981-09-04 1984-03-20 Grace Farr Vacuum cleaner intake member
US4601112A (en) * 1985-06-14 1986-07-22 Kaiser Aluminum & Chemical Corporation Liquid edgebead removal device
US5440779A (en) * 1991-11-01 1995-08-15 Davy Mckee (Poole) Limited Moisture removal from metal strip
US5528820A (en) * 1992-05-14 1996-06-25 Usa Metals Corp. Method of making strip conductor for transformers
US5398372A (en) * 1993-10-29 1995-03-21 Kaiser Aluminum & Chemical Corporation Liquid edge bead removal device
US5702537A (en) * 1993-10-29 1997-12-30 Kaiser Aluminum & Chemical Corporation Method for removing liquid edge bead
US6260231B1 (en) * 1999-02-19 2001-07-17 Speedline Technologies, Inc. Air knife drying system

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