US1788600A - Abrasive article and manufacture of same - Google Patents
Abrasive article and manufacture of same Download PDFInfo
- Publication number
- US1788600A US1788600A US691149A US69114924A US1788600A US 1788600 A US1788600 A US 1788600A US 691149 A US691149 A US 691149A US 69114924 A US69114924 A US 69114924A US 1788600 A US1788600 A US 1788600A
- Authority
- US
- United States
- Prior art keywords
- sheet
- coating
- particles
- abrasive
- conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
- B24D11/005—Making abrasive webs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S101/00—Printing
- Y10S101/37—Printing employing electrostatic force
Definitions
- This invention relates to articles of manufacture consisting of a support, and a layer of comminuted material deposited thereon;
- the invention is es cially useful in coating strips or sheets 0 fabric, paper or the like with abrasive particles as hereinafter described in connection with. illustrative embodiment.
- Objects of my invention are to rovide a simple, and eflicient method of pro ucing an abrasive surface on a fabric or other article serving as a base, without materially affecting the flexibility or strength of the article; to provide an electrostatic method of continuously, and progressively producing an abrasive coating on a sheet of fabric, or other article, as it is moved in substantially the direction of its surface; to provide an improved coated fabric or other article;
- my invention contemplates electrostatically applying an abrasive coating to a fabric, or-other articleserving as a base, by electrostatically projecting abrasive particles into engagement or binding contact with the article being coated, and
- an abrasive coating is electrostatically applied to an electrically non-conducting article by providing a .con-
- the invention provides a fabric orother article coated with a conductin material having a superposed coating 0 binder material upon which there is deposited a coating of granular material.
- Thearticle when in sheet form, may be coated by moving the sheet continuously in substantially the direction of its surface; dipping a portion of the sheet into a liquid making a sliding contact between the conducting portionof the sheet and one terminal of a .source of electromotive force; dipping the sheet in a liquid bath of binding material to leave a coating of the binder on the sheet; equalizing the distribution of the binder coating on the sheet; moving the sheet through a stream ofabrasive articles which .are electrostatically charge by the source of electromotive force with a sign opposlte to that of the conducting path of the sheet; equalizin the distribution of abrasive particles over t e surface of the sheet, and
- FIG. 1 is an elevation, in section diagrammatically showing apparatus for preparing an abrasive coating on a sheet of fabric
- F 2 is a plan of a portion of Fig. 1;
- Fig. 3 is an enlarged view of a port-idn of Fig. 1;
- Figs. 4, 5, 6 and 7 are cross sections of a fabric in successive stages, respectively, of the coating operations.
- Fig. 1 the sheet A of fabric, paper, or similar material, is moved substantially in the direction of its surfaceand directed b rollers so that it passes continuously throug a series of zones B, C, D and E, in each one of which, the sheet is subjected to a different or comminuted graphite or other conducting material.
- the liquid is preferably non-corrosive and without appreciable physical or chemical effect upon the sheet when used primarily to suspend the conducting particles; it may be water or other suitable liquid.
- the sheet passes between the rollers 14 which remove the excess of the mixture from the sheet, resulting in a substantially uniform distr bution of conducting material throughout.
- the rollers 15 direct the sheet through a drying zone 0 within the chamber 16, having a heating element 17, such as a steam pipe, or other heater.
- the liquidupon drying from the coating on the sheet leaves the conducting material distributed over the surface as a conducting path.
- the brush 18 in contact with the sheet is connected to the positive terminal of the source of electromotive force 19 which electrifies the conducting path of the sheet with a charge of positive
- t ollers 20 direct the sheet through the zone D, in which, a coating of binding material is applied to the sheet as it dips into the liquid bath 21 of binding material, such v as parafiin, or other suitable binder, preferably electrically nonconducting, in tank 22, heated by a steam pipe (not shown), or other suitable means.
- the rollers 24 remove the excess liquid and distribute the coating uniformly over the surface to equalize its thickness.
- a coating of abrasive is electrostatically applied to the sheet.
- the nozzles 33 discharge air into the conduits 34 (see Fig.
- conduits having apertures which admit the moving air at suitable pressure to the abrasive container to produce a condition in which the abrasive particles are temporarily suspended in the atmosphere of the container through orifices 38-into the zone of the electrical discharge, which takes place between the needles 37 mounted on bus-bars 36 and the conducting sheet.
- Bus bars 36 are connected preferably to the negative terminal of source of electromotive force 19 by means of leads 39, the effective potential of the source 19 being adjusted to such a value, e. g. 18000 volts, more or less, that the abrasive particles in chamber 32 become electrified with a negative charge, and together with the air admitted through nozzle 33 discharge through slot 38 as a stream of electrified particles which are eletrostatically propelled toward the positively charged sheet A, the solid particles bombarding and coming into engagement with the binder coating on the sheet. It will be seen that the electrostatically propelled abrasive particles emerging from each of the oriabrasive particles from the air before entering the conduit. Air free from ab-ra sive particles is admitted through openings 43.
- the baflles tending to cause a precipitation of the particles at one end of the housing as indicated by the accumulation 47 which also includes the abrasive sifted by the screen 42.
- air may be fed through nozzles 33 directly from the atmosphere, but if a greater flow is desired compressed air may be fed through these nozzles.
- The'sheet may be propelled by rotation of the roll 49 or one or more of the rollerswith which the sheet contacts between rolls 10 and 49.
- Figure 4 shows the appearance of a simple fabric sheet A, of electrically insulating or poorly conducting material, having a warp 50 and a woof 51, before the sheet has entered the coating zone B.
- Fig. 5 shows the particles 52 of graphite or other conductor distributed over the surface of the fabricafter the liquid from the batch 12 has been evaporated from the surface in the drying zone C and before the sheet has entered the coating zone D.
- Fig. 6 shows the sheet A with the coatin 53 of paraffin, or other binding ma terial. efore the sheet enters the coating zone progximately one particle thick to a thick deposit, and in any case the particles aredistributed with great uniformity.
- means for applying to the sheet a coating of liquid having conducting particles in suspension means for drying the liquid to leave conducting particles as a coating on the sheet, means for-applying a coating of binder material to the sheet, and means for electrically projecting a stream of granular matter into engagement with the binder coating to apply a superficial coating to the sheet.
- the method of reparing an abrasive coating on a sheet of abric or similar'material which comprises continuously moving vthe sheet in substantially the direction of its surface progressively coating the sheet with a liqui terial in suspension, progressively drying the liquid to leave the suspended material-as a conductive coating on the sheet, progressivel coating the sheet with a bindlng materia, and progressively bombardingthe sheet with a stream of abrasive. particles electrically charged oppositely to the conducting coating ofthe sheet.
- "7 f1 9 The method of pre aring an abrasive coating on a sheet of fa ric or" similar ma terial, which comprises continuously moving the sheet in substantially the direction of its, surface, progressively depositin r 'on;
- the conductinv'material with a bin ng material and dlectrostatically projecting a stream of abrasive particles into engagement with the binder coating.
- the method of coating a sheet of material with abrasive particles which comprises rendering the sheet both conductive and adhesive and, by oppositely charging the conductive sheet and abrasive particles in the region of the sheet, electrostatically depositing the abrasive particles upon the adhesive surface of the sheet.
- the method of coating a sheet of material with abrasive particles which comprises rendering the sheet both conductive and adhesive, continuously agitating a supply of. abrasive particles in an enclosed region, continuously feeding the sheet along a path associated with said region, and byoppositely charging the conductive sheet and a rasive particles in said region electrostatically embedding the particles upon the adhesive surface of the sheet.
- Apparatus for'applying adhesive material to an electrically conducting surface and depositing thereon finely divided particles under the influence of an electrostatic field comprising means for moving the surface in substantially the direction of its length, means for applying adhesive material to the surface, and means for electrostatically bombarding the adhesive material with elec trically charged particles to produce a coating upon said adhesive material.
- Apparatus for applying finely divided particles. to a surface previously rendered electrically conducting and adhesive com prising means for producing an electrostatic field in a region containing finely divided particles and means for moving the surface through said electrostatic field.
- w ich comprises treating the sheet to render it electrically conductiveand mechanicall adhesive, establishing an electrostatic fiel of force between the surface to be coated and a charged conductor of opposite polarity to that'of the sheet and adjacent thereto, conveying finely divided abrasive particles into the electrostatic field of force and moving the surface progressively and in substantially its own plane through the electrostatic field of force whereb the abrasive particles may, by the action 0 the electrostatic field of force upon them, be deposited thereon.
- Apparatus for depositing finely divided particles on the surface of a fabric or other material comprising means for treating the fabric to render it electrically conductive and mechanically adhesive, means for establishing an electrostatic field of force between two electrodes of opposite polarity one of which is in electrical contact with the surface of the fabric, means for conveying the finely divided particles into the electrostatic field of force Where, under its influence, they will be deposited on the surface of the fabric, and means for progressively moving said surface in substantially the direction of its length.
- Apparatus for depositing finely divided abrasive particles on the surface of a fabric or other material comprising means for treating the fabric to render it electrically conductive and mechanically adhesive, means for establishing an electrostatic field of force between two electrodes of opposite polarity one of which is in electrical contact with the surface of the fabric, means for conveying the ,finely divided abrasive particles into the electrostatic field of force where, under its influence, the will be deposited on the surface of the fa ric, and means for progressively moving said surface in substantially the conductive and mechanically adhesive com-.
- the method of coating, with finely divided abrasive material; a surface that is e substantially conboth electrically conductive and mechanically adhesive comprising establishing an electrostatic field of force between two electrodes of opposite polarity one of which is in electrical contact with the surfaceto be coated, conveying the finely divided abrasive material into the electrostaticfield of force under the action of which itwilll be translated to the surface to be coated, and subjecting successive parts of the surface to the combined action of the electrostatic field of force and the finely divided abrasive material in a manner thatwill be substantiallycontinuous.
- the method of spreading a coating of finel divided material upon an electrically cond fictive surface which comprises estab- 'lishin an electrostatic field of force between two e ectrodes of opposite polarity, one of which is in electrical contact with the surface to be coated, conveying the finel divided 'ma-' terial into the electrostatic fiel of force under the actiorrof which it will be translated to the surface to be coated, and bonding the finely divided material to the surface to be coated.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE391106D BE391106A (de) | 1924-02-07 | ||
US691149A US1788600A (en) | 1924-02-07 | 1924-02-07 | Abrasive article and manufacture of same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US691149A US1788600A (en) | 1924-02-07 | 1924-02-07 | Abrasive article and manufacture of same |
Publications (1)
Publication Number | Publication Date |
---|---|
US1788600A true US1788600A (en) | 1931-01-13 |
Family
ID=24775352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US691149A Expired - Lifetime US1788600A (en) | 1924-02-07 | 1924-02-07 | Abrasive article and manufacture of same |
Country Status (2)
Country | Link |
---|---|
US (1) | US1788600A (de) |
BE (1) | BE391106A (de) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2421787A (en) * | 1945-01-26 | 1947-06-10 | Harper J Ransburg Company | Electrostatic coating method |
US2447374A (en) * | 1934-04-25 | 1948-08-17 | Granne Trust Company | Method of applying coating materials |
US2447664A (en) * | 1945-02-01 | 1948-08-24 | Westinghouse Elec Elevator Co | Electrostatic coating apparatus and method |
US2463242A (en) * | 1945-05-21 | 1949-03-01 | Behr Manning Corp | Coated abrasive article |
US2483462A (en) * | 1945-05-03 | 1949-10-04 | William C Huebner | Process and apparatus for electronographic printing |
US2526780A (en) * | 1945-10-22 | 1950-10-24 | Ransburg Electro Coating Corp | Apparatus for coating articles |
US2548872A (en) * | 1948-08-10 | 1951-04-17 | Minnesota Mining & Mfg | Method of fixing particles to sheet material |
US2558901A (en) * | 1945-04-27 | 1951-07-03 | William C Huebner | Electric printing system |
US2558900A (en) * | 1945-03-26 | 1951-07-03 | William C Huebner | Electrostatic printing method and apparatus |
US2560047A (en) * | 1947-09-20 | 1951-07-10 | Firestone Tire & Rubber Co | Apparatus for electrostatically depositing gas-suspended solids |
US2654315A (en) * | 1947-05-15 | 1953-10-06 | Huebner Company | Process of multicolor electronographic printing |
US2667121A (en) * | 1949-10-04 | 1954-01-26 | Huebner Company | Printing method and apparatus |
US2706963A (en) * | 1949-07-05 | 1955-04-26 | Hug Rudolf | Device for fiber-coating materials and objects |
US2745223A (en) * | 1954-03-02 | 1956-05-15 | Ohio Commw Eng Co | Grinding drum |
US2770210A (en) * | 1945-11-05 | 1956-11-13 | Ransburg Electro Coating Corp | Apparatus for coating |
DE961333C (de) * | 1951-10-25 | 1957-04-04 | Metallgesellschaft Ag | Verfahren und Einrichtung zur Oberflaechenbehandlung im elektrostatischen Feld, beispielsweise zum Lackieren von Gegenstaenden |
US2789922A (en) * | 1952-05-24 | 1957-04-23 | Stewart Warner Corp | Method and apparatus for applying a thin film of liquid |
US2826513A (en) * | 1950-10-13 | 1958-03-11 | Blanchard Andre | Method and apparatus for electrostatic coating utilizing projection of liquid solelyby the electric field |
US2883302A (en) * | 1951-11-13 | 1959-04-21 | Ransburg Electro Coating Corp | Electrostatic coating method and apparatus |
US3009441A (en) * | 1959-06-18 | 1961-11-21 | Ransburg Electro Coating Corp | Apparatus for electrostatically spray coating |
US3081698A (en) * | 1960-03-04 | 1963-03-19 | Electrostatic Printing Corp | Electrostatic printing system |
DE976325C (de) * | 1951-11-13 | 1963-06-27 | Licentia Gmbh | Verfahren zur Herstellung von Schichtstoffen aus Glimmerblaettchen |
US3295440A (en) * | 1964-05-27 | 1967-01-03 | Continental Can Co | Electrostatic printing method and apparatus employing corona discharge means |
US3669850A (en) * | 1969-07-18 | 1972-06-13 | Cedo Draca | Method for the production of abrasive brushing elements |
US4018574A (en) * | 1970-12-16 | 1977-04-19 | Norton Compay | Process for the manufacture of endless coated abrasive articles |
US4031270A (en) * | 1975-06-02 | 1977-06-21 | Laidlaw Corporation | Method of flocking metal articles |
US4749593A (en) * | 1985-02-21 | 1988-06-07 | Prazisions-Werkzeuge Ag | Coating arrangement and process for preventing deposits of a coating material |
US5181939A (en) * | 1989-12-20 | 1993-01-26 | Charles Neff | Article and a method for producing an article having a high friction surface |
US5891204A (en) * | 1989-12-20 | 1999-04-06 | Neff; Charles E. | Article and a method for producing an article having a high friction surface |
FR2822728A1 (fr) * | 2001-04-02 | 2002-10-04 | Saint Gobain Abrasives Inc | Production de surfaces abrasives enduites dessinees |
US20040029498A1 (en) * | 2002-08-07 | 2004-02-12 | Neff Charles E. | Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools |
EP2675575A2 (de) * | 2011-02-16 | 2013-12-25 | 3M Innovative Properties Company | Elektrostatische schleifpartikel-beschichtungsvorrichtung und verfahren dafür |
US11518002B2 (en) * | 2017-02-14 | 2022-12-06 | Pferd Milwaukee Brush Company, Inc. | Method for producing a grinding tool and grinding tool |
-
0
- BE BE391106D patent/BE391106A/xx unknown
-
1924
- 1924-02-07 US US691149A patent/US1788600A/en not_active Expired - Lifetime
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2447374A (en) * | 1934-04-25 | 1948-08-17 | Granne Trust Company | Method of applying coating materials |
US2421787A (en) * | 1945-01-26 | 1947-06-10 | Harper J Ransburg Company | Electrostatic coating method |
US2447664A (en) * | 1945-02-01 | 1948-08-24 | Westinghouse Elec Elevator Co | Electrostatic coating apparatus and method |
US2558900A (en) * | 1945-03-26 | 1951-07-03 | William C Huebner | Electrostatic printing method and apparatus |
US2558901A (en) * | 1945-04-27 | 1951-07-03 | William C Huebner | Electric printing system |
US2483462A (en) * | 1945-05-03 | 1949-10-04 | William C Huebner | Process and apparatus for electronographic printing |
US2463242A (en) * | 1945-05-21 | 1949-03-01 | Behr Manning Corp | Coated abrasive article |
US2526780A (en) * | 1945-10-22 | 1950-10-24 | Ransburg Electro Coating Corp | Apparatus for coating articles |
US2770210A (en) * | 1945-11-05 | 1956-11-13 | Ransburg Electro Coating Corp | Apparatus for coating |
US2654315A (en) * | 1947-05-15 | 1953-10-06 | Huebner Company | Process of multicolor electronographic printing |
US2560047A (en) * | 1947-09-20 | 1951-07-10 | Firestone Tire & Rubber Co | Apparatus for electrostatically depositing gas-suspended solids |
US2548872A (en) * | 1948-08-10 | 1951-04-17 | Minnesota Mining & Mfg | Method of fixing particles to sheet material |
US2706963A (en) * | 1949-07-05 | 1955-04-26 | Hug Rudolf | Device for fiber-coating materials and objects |
US2667121A (en) * | 1949-10-04 | 1954-01-26 | Huebner Company | Printing method and apparatus |
US2826513A (en) * | 1950-10-13 | 1958-03-11 | Blanchard Andre | Method and apparatus for electrostatic coating utilizing projection of liquid solelyby the electric field |
DE961333C (de) * | 1951-10-25 | 1957-04-04 | Metallgesellschaft Ag | Verfahren und Einrichtung zur Oberflaechenbehandlung im elektrostatischen Feld, beispielsweise zum Lackieren von Gegenstaenden |
DE976325C (de) * | 1951-11-13 | 1963-06-27 | Licentia Gmbh | Verfahren zur Herstellung von Schichtstoffen aus Glimmerblaettchen |
US2883302A (en) * | 1951-11-13 | 1959-04-21 | Ransburg Electro Coating Corp | Electrostatic coating method and apparatus |
US2789922A (en) * | 1952-05-24 | 1957-04-23 | Stewart Warner Corp | Method and apparatus for applying a thin film of liquid |
US2745223A (en) * | 1954-03-02 | 1956-05-15 | Ohio Commw Eng Co | Grinding drum |
US3009441A (en) * | 1959-06-18 | 1961-11-21 | Ransburg Electro Coating Corp | Apparatus for electrostatically spray coating |
US3081698A (en) * | 1960-03-04 | 1963-03-19 | Electrostatic Printing Corp | Electrostatic printing system |
US3295440A (en) * | 1964-05-27 | 1967-01-03 | Continental Can Co | Electrostatic printing method and apparatus employing corona discharge means |
US3669850A (en) * | 1969-07-18 | 1972-06-13 | Cedo Draca | Method for the production of abrasive brushing elements |
US4018574A (en) * | 1970-12-16 | 1977-04-19 | Norton Compay | Process for the manufacture of endless coated abrasive articles |
US4031270A (en) * | 1975-06-02 | 1977-06-21 | Laidlaw Corporation | Method of flocking metal articles |
US4749593A (en) * | 1985-02-21 | 1988-06-07 | Prazisions-Werkzeuge Ag | Coating arrangement and process for preventing deposits of a coating material |
US5181939A (en) * | 1989-12-20 | 1993-01-26 | Charles Neff | Article and a method for producing an article having a high friction surface |
US5891204A (en) * | 1989-12-20 | 1999-04-06 | Neff; Charles E. | Article and a method for producing an article having a high friction surface |
US6083631A (en) * | 1989-12-20 | 2000-07-04 | Neff; Charles | Article and a method and apparatus for producing an article having a high friction surface |
GB2389550A (en) * | 2001-04-02 | 2003-12-17 | Saint Gobain Abrasives Inc | Production of patterned coated abrasive surfaces |
WO2002078909A1 (en) * | 2001-04-02 | 2002-10-10 | Saint-Gobain Abrasives, Inc. | Production of patterned coated abrasive surfaces |
FR2822728A1 (fr) * | 2001-04-02 | 2002-10-04 | Saint Gobain Abrasives Inc | Production de surfaces abrasives enduites dessinees |
GB2389550B (en) * | 2001-04-02 | 2004-07-21 | Saint Gobain Abrasives Inc | Production of patterned coated abrasive surfaces |
US20040029498A1 (en) * | 2002-08-07 | 2004-02-12 | Neff Charles E. | Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools |
US6997790B2 (en) | 2002-08-07 | 2006-02-14 | Neff Charles E | Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools |
US20060194524A1 (en) * | 2002-08-07 | 2006-08-31 | Neff Charles E | Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools |
US7347769B2 (en) | 2002-08-07 | 2008-03-25 | Neff Charles E | Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools |
EP2675575A2 (de) * | 2011-02-16 | 2013-12-25 | 3M Innovative Properties Company | Elektrostatische schleifpartikel-beschichtungsvorrichtung und verfahren dafür |
EP2675575A4 (de) * | 2011-02-16 | 2014-11-05 | 3M Innovative Properties Co | Elektrostatische schleifpartikel-beschichtungsvorrichtung und verfahren dafür |
US9040122B2 (en) | 2011-02-16 | 2015-05-26 | 3M Innovative Properties Company | Electrostatic abrasive particle coating apparatus and method |
US9676078B2 (en) | 2011-02-16 | 2017-06-13 | 3M Innovative Properties Company | Electrostatic abrasive particle coating apparatus and method |
US11518002B2 (en) * | 2017-02-14 | 2022-12-06 | Pferd Milwaukee Brush Company, Inc. | Method for producing a grinding tool and grinding tool |
Also Published As
Publication number | Publication date |
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BE391106A (de) |
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