US2059583A - Abrasive belt - Google Patents

Abrasive belt Download PDF

Info

Publication number
US2059583A
US2059583A US726647A US72664734A US2059583A US 2059583 A US2059583 A US 2059583A US 726647 A US726647 A US 726647A US 72664734 A US72664734 A US 72664734A US 2059583 A US2059583 A US 2059583A
Authority
US
United States
Prior art keywords
abrasive
segments
belt
liner
adhesive
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
Application number
US726647A
Other languages
English (en)
Inventor
Ralph H Jackson
Henry P Kirchner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unifrax 1 LLC
Original Assignee
Carborundum Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carborundum Co filed Critical Carborundum Co
Priority to US726647A priority Critical patent/US2059583A/en
Priority to DEC50117D priority patent/DE664808C/de
Priority to GB8436/35A priority patent/GB453851A/en
Application granted granted Critical
Publication of US2059583A publication Critical patent/US2059583A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • Y10S451/00—Abrading
    • Y10S451/921—Pad for lens shaping tool

Definitions

  • invention i relatesrto: iabrasive belts and particularly to belts of novel construction adaptdisadvantages.
  • the production of the paste comprising adhesive and abrasive grain involves the use of a relatively large ratio of adhesive; the abrasive grains are therefore more or less embedded in the adhesive and prevented from having effective contact with the work.
  • the use of the paste also results in an abrasive coating which'is '20 hard and cracks easily. Furthermore, because of its dense and continuous nature the abrasive coating receives directly the/stresses and strain applied to the belt in use.
  • the longitudinal flexing causes the abrasive coating to crack transversely and in passing around a crowned pulley the belt is flexed transversely with the production of longitudinal cracks.
  • the abrasive coating exhibits a further tendency to crack.
  • the abrasive surface becomes a mass of small pieces individually adhering to the backing and tending to spell off leaving objectionable voids, shortening the life of the belt and resulting in lower efliciency of the grinding operation and poorer finish.
  • the spalled pieces are rubbed between the belt and the work with the production -of objectionable scratches on the work.
  • the application of the paste is necessarily relatively slow permittingsections of the backing to H be of difierent moisture content causing unequal drying which distorts the belt, resulting in sloppy edges and warping generally, which makes it diflicult to keep the belt on thepulley. Furthermore, it is diflicult ,with thislmethod to obtain uniform thickness of the abrasive coating. Uneven application of the coating ofimaterial results in uneven drying-with attendant cracking and warpmg as. described in connection with uneven moisturecontent. i
  • the improved belt of the present invention overcomes the disadvantages set forth in connection with the belt used heretofore and also possesses characteristics not heretofore found in abrasive belts and is capable of results 'not heretofore obtainable by means of abrasive belts.
  • the new belt may comprise a liner or backing of suitable material'such as oceanic duck and a plurality of segments of abrasive coated fabric such as paper or cloth attached to the liner by a suitable adhesive.
  • the segments may be arranged whereby one side of the liner 'is substantially entirely covered by an abrasive layer and presents a substantially continuous abrasive surface, that is a surface which has the abrading characteristics of a truly continuous abrasive surface.
  • the arrangement of the segments of fabric may be any convenient one called for by the nature of the material at hand; It is preferable however that the lines of junction between the segments all be substantially diagonal to the longitudinal axis of the liner.
  • FIG. 1 illustrates diagrammatically an example of polishing or abrading apparatus for use in connection with which the belt of the present invention is particularly adapted
  • Figure 2 illustrates a modification of the apparatus shown in Figure 1;
  • Figures 3 to 8 inclusive illustrate various arrangem'entsof segments of abrasive coated fabric onaliner.
  • the apparatus shown in 1 and 2 for use-in connectio'nwith which the new belt is particularly adapted; the abrasive belt 9 is shown as supported by pulleys I0 'and 'l I; pulley ll acting to press the belt 9 into suitable splice ioining the ends of a strip of suitable material such as the liner l4, referring to Figures 3 and 4, joined by means of the interlocking splice l5.
  • segments it of abrasive coated fabric may be attached to a side of the liner ll by suit- The segable application of adhesive material.
  • ments I are preferably laid whereby their edges are adjacent so that they substantially cover an entire side of the liner H.
  • the segments may be in the form of rectangles and laid whereby they extend substantially directly across the liner ll.
  • the lines of junction are substantially diagonal to the longitudinal axis of the liner.
  • the segments may be regular or irregular in size and uniform or varying in shape and size, and various geometrical shapes of segments and arrangement of segments on the liner are illustrated in Figures 3 to 8 inclusive, and these and still other arrangements may be used according to the nature of the material to be polished, the finished surface desired, and the size of the materials at hand for constructing a belt.
  • the arrangement shown in Figure '7 is advantageous in that the irregular shaped segments are symmetrical with respect to the axis of the liner. This arrangement avoids diagonal lines of juncture extending clear across a liner in one direction and tends to assist the centering of the belt on the pulley.
  • the ts may be arranged and selected whereby all the segments on a liner carry abrasive grains of the same grit size or the abrasive surface may be made up of segments carrying various grit sizes of abrasive material.
  • the segments may also be of uniform or varying hardness of abrasive material and arranged with respect to each other according to the effect desired.
  • the segments need not necessarily be of the same size and the segments carrying finer or softer abrasive grain may be relatively narrow and located between successive wider strips or segments carrying relatively harder or coarser abrasive grain. In such arrangements the smaller segments tend to assist in the polishing operation and also to collect and retain large particles such as grain which has become loosened from the abrasive segments. When such large particles are rubbed between the hard abrasive surface of the segments and the surface to be polished they produce scratches of undue size which mar the surface.
  • softer abrasive segments may be employed to collect and retain such particles.
  • spaces between adjacent segments may be filled with grease or strips of fibrous material of relatively open structure such as felt or similar resilient material and wire brushes or similar material.
  • the use of these substances in the spaces between the segments materially improves the finish of the article being abraded or polished.
  • the segments may be arranged close together or they may be spaced apart providing substantial areas for the location of material to collect and retain the loose particles.
  • the liner is necessarily in the form of an endless belt or made substantially so by means of one or more splices.
  • the liner may consist of any suitable fabric and need not be a unitary piece but may comprise a plurality of portions of similar or dissimilar fabric suitably joined together.
  • the liner may be made up of a layer of paper and a layer of cloth suitably joined together. While such a liner may not be as strong as one composed entirely of cloth if the latter is of the same thickness the composite structure has the advantage of cheapness and it' is strong enough for some uses.
  • the liner may also consist of a plurality of segments arranged similarly to the arrangement of abrasive coated fabric described above and joined together to form a suitable belt by any suitable means, for example, by interlocking splices arranged diagonally to the axis of the liner.
  • the liner may consist of a plurality of segments of cloth wherein the woof and the warp threads of the cloth are diagonal to the axis of the belt with resulting advantages analogous to those set forth in connection with the use of abrasive coated cloth segments so arranged.
  • a liner made up of a plurality of segments has the further advantage that it can be made in widths greater than those of commercially obtainable cloth.
  • the new belt has the advantages, and advances in technical control of abrasive surface, char-
  • the new belt is easier to make since it does not? require the application of a coating of adhesive to a large surface.
  • the abrasive surface can be applied to a new belt with the use of a small amount of adhesive, there willnot be puckering or warping of the back with the resulting disadvantages characteristic of warping and puckering.
  • the abrasive quality of the belt will be better since the new belt involves the use of a smaller ratio of glue to abrasive material.
  • the new belt it is possible to produce on it the type of coating desired and to obtain a uniform application of a coating of the desired nature. For example, if it is desired to produce a relatively open coat of abrasive material on the belt this can be done with a uniform application of abrasive grain in the proper quantity and a minimum and uniform application of adhesive about the grain.
  • the longitudinal strains are borne substantially entirely by the backing or liner, since the weakest parts of the new belt are those lying between two segments of abrasive material, consequently any stretching of the belt occurs in the liner in those portions lying between the segments of abrasive material. Those portions stretch suliiciently to relieve the stress and the abrasive segments remain substantially unstretched so that their abrasive qualities are unimpaired and the abrasive surface is not broken up with resultant loss of abrasive grain and poor quality of work as in the case of previous belts.
  • the resilient nature of the liner will cause it to regain substantially its original length and shape after the stress is removed and'even if it does not regain its original shape entirely the resulting slight widening of the areas between the abrasive segments will not materially affect the abrasive action of the belt.- Since the liner is independent of the abrasive member it can be selected for desired qualities, such as flexibility and resistance to stretching, without regard to its abrasive retaining characteristics. The new belt is therefore more resistant to deformation than the old .belt and can be stretched without destroying the abrasive surface.
  • the new belt is more able to regain its original shape after removal of the stresses which cause stretchsive coated cloth and may be arranged on the liner whereby the threads are diagonal to the axis of the belt.
  • the new'belt will produce finishes more quickly. Because of the sharper cutting action of the abrasive grain. Furthermore the new belt will cut efliciently for a longer time than the belt used heretofore. By means of the new belt it is possible to obtain finishes having a uniformity and a fineness which it was not possible to obtain by the belts used heretofore.
  • the segments may be applied to the liner so that they can be removed when worn out and replaced by segments of new abrasive fabric.
  • the belts- may be coated with adhesivewhich does not dry, thus permitting the removal of the segments but retaining them in place with suflicient strength.
  • These segments can be prepared in advance with such acoating of adhesive with the adhesive surface protected by a strip of fabric which may be torn oil when the segment is to be applied exposing the sticky adhesive surface.
  • the abrasive material may be prepared in the form of tape with the adhesive applied to the back thereof and protected by a strip of paper orcloth.
  • the new belt is easier to make and at the same time has greater efficiency in use. It has been found, for example, when a belt of previously known construction has been removed from a polishing machine such as'that illustrated in Figure 1 and replaced with the new belt of the present invention, that the production of the machine has increased from two to three times that obtained when using the old type of. belt.
  • An abrasive belt comprising a suitable liner with a surface thereof substantially covered by a plurality of segments of abrasive coatedfabric intimately united thereto, the abrasive surface of the belt formed by said segments being longitudinally discontinuous, whereby any longitudinal line on the surface of the vbelt crosses several junctures between segments, the said surface being free from longitudinal junctures of substantial length.
  • An abrasive belt comprising a suitable liner with a surface thereof substantially covered by a plurality of parallelogrammic segments of abrasive coated fabric extending across a side of the said liner and intimately united thereto, the abrasive surface of the belt formed by said segments being longitudinally discontinuous, whereby any longitudinal line on the surface of the belt crosses several junctures between segments.
  • An abrasive belt comprising a suitable liner, a plurality of segments of abrasive-coated fabric intimately united to a side of the said liner and spaced apart from each other whereby they pressent a plurality of discontinuous abrasive surfaces and whereby the said abrasive surface is crossed by a plurality of transverse spaces between adjacent segments, and, located in the space between the said segments, material less abrasive than the said segments and adapted to collectand retain particles which would unduly scratch the surface being abraded.
  • An abrasive belt comprising a suitable liner, a plurality of segments of abrasive-coated fabric intimately united to a side of the said liner and spaced apart from each other whereby they present a plurality of discontinuous abrasive surfaces and whereby the said abrasive surface is crossed by a plurality of transverse spaces between adjacent segments, and, located in the spaces between the said segments, and intimately united to the said liner fibrous material less abrasive than the said segments and of relatively open structure adapted to collect and retain particles which would unduly scratch the surface being abraded.
  • An abrasive belt comprising a suitable liner, a plurality of segments of abrasive-coated fabric intimately united to a side of the said liner and spaced apart from each other whereby they present a plurality of discontinuous abrasive surfaces and whereby the said abrasive-surface is crossed by a plurality of transverse spaces between adiacent segments, and, located in the spaces between the said segments, grease-like material adapted to collect and retain particles which would unduly scratch the surface being abraded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US726647A 1934-05-21 1934-05-21 Abrasive belt Expired - Lifetime US2059583A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US726647A US2059583A (en) 1934-05-21 1934-05-21 Abrasive belt
DEC50117D DE664808C (de) 1934-05-21 1935-01-23 Schleifriemen, insbesondere zum Schleifen grosser Bleche
GB8436/35A GB453851A (en) 1934-05-21 1935-03-18 Improvements in abrasive belts

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US664808XA 1934-05-21 1934-05-21
US453851XA 1934-05-21 1934-05-21
US726647A US2059583A (en) 1934-05-21 1934-05-21 Abrasive belt

Publications (1)

Publication Number Publication Date
US2059583A true US2059583A (en) 1936-11-03

Family

ID=27366682

Family Applications (1)

Application Number Title Priority Date Filing Date
US726647A Expired - Lifetime US2059583A (en) 1934-05-21 1934-05-21 Abrasive belt

Country Status (2)

Country Link
US (1) US2059583A (de)
DE (1) DE664808C (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416289A (en) * 1942-02-05 1947-02-25 Minnesota Mining & Mfg Leather burnishing and plating
US2483293A (en) * 1948-01-08 1949-09-27 Rudolf G Minarik Abrasive and buffing belt
US2485295A (en) * 1947-09-17 1949-10-18 Adolph J Larson Pack of abrasive coated sheets
US2544940A (en) * 1948-08-13 1951-03-13 American Optical Corp Polishing pad
US2590697A (en) * 1949-04-08 1952-03-25 Don S Grove Endless abrasive belt and method of manufacturing same
US2595429A (en) * 1950-08-22 1952-05-06 Clarence D Trussell Hand sander
US2626489A (en) * 1948-06-19 1953-01-27 Richard G Thompson Sanding block construction
US2644280A (en) * 1950-09-13 1953-07-07 Carborundum Co Sanding disk accessory
US2752737A (en) * 1953-09-04 1956-07-03 Donald W Kent Lens polishing overlay
US2752738A (en) * 1953-09-04 1956-07-03 Donald W Kent Overlay for and method of grinding lens blanks
US2815616A (en) * 1955-09-14 1957-12-10 Harry B Barrett Hand tools adapted for removing glaze from automotive brake shoes and brake drums
US2888785A (en) * 1958-06-30 1959-06-02 Thelma E Kellican Eraser cleaner
US3053020A (en) * 1959-04-21 1962-09-11 Carborundum Co Sectional coated abrasive belt and process of making the same
US3774355A (en) * 1971-10-15 1973-11-27 Remington Arms Co Inc Armored metal file band and production thereof
US3874126A (en) * 1971-10-15 1975-04-01 Remington Arms Co Inc Flexible hand held abrading tool
US4603678A (en) * 1984-10-05 1986-08-05 W. F. Meyers Company, Inc. Belt-configured saw for cutting slots into stone
US4679541A (en) * 1984-10-05 1987-07-14 W. F. Meyers Company, Inc. Belt-configured saw for cutting slots into stone
US5567503A (en) * 1992-03-16 1996-10-22 Sexton; John S. Polishing pad with abrasive particles in a non-porous binder
EP1277546A1 (de) * 2001-07-20 2003-01-22 sia Abrasives Industries AG Schleifband mit einem Träger aus Vulkanfiber
US6705936B2 (en) 2001-03-13 2004-03-16 Wendt Dunnington Company Large-width, angular-sided segmental superabrasive grinding wheel
US20090181608A1 (en) * 2008-01-15 2009-07-16 Iv Technologies Co., Ltd. Polishing pad and fabricating method thereof
US20090258579A1 (en) * 2008-04-11 2009-10-15 Frederick Joslin Form transfer grinding method
US20220254522A1 (en) * 2019-07-05 2022-08-11 Framatome Tubular component of pressurised water nuclear reactor, and method for manufacturing said component

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589233A (en) * 1984-06-25 1986-05-20 Carborundum Abrasives Company Sectional abrasive belt
DE4424241A1 (de) * 1994-07-09 1996-01-11 Cerasiv Gmbh Breitschleifband

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416289A (en) * 1942-02-05 1947-02-25 Minnesota Mining & Mfg Leather burnishing and plating
US2485295A (en) * 1947-09-17 1949-10-18 Adolph J Larson Pack of abrasive coated sheets
US2483293A (en) * 1948-01-08 1949-09-27 Rudolf G Minarik Abrasive and buffing belt
US2626489A (en) * 1948-06-19 1953-01-27 Richard G Thompson Sanding block construction
US2544940A (en) * 1948-08-13 1951-03-13 American Optical Corp Polishing pad
US2590697A (en) * 1949-04-08 1952-03-25 Don S Grove Endless abrasive belt and method of manufacturing same
US2595429A (en) * 1950-08-22 1952-05-06 Clarence D Trussell Hand sander
US2644280A (en) * 1950-09-13 1953-07-07 Carborundum Co Sanding disk accessory
US2752737A (en) * 1953-09-04 1956-07-03 Donald W Kent Lens polishing overlay
US2752738A (en) * 1953-09-04 1956-07-03 Donald W Kent Overlay for and method of grinding lens blanks
US2815616A (en) * 1955-09-14 1957-12-10 Harry B Barrett Hand tools adapted for removing glaze from automotive brake shoes and brake drums
US2888785A (en) * 1958-06-30 1959-06-02 Thelma E Kellican Eraser cleaner
US3053020A (en) * 1959-04-21 1962-09-11 Carborundum Co Sectional coated abrasive belt and process of making the same
US3774355A (en) * 1971-10-15 1973-11-27 Remington Arms Co Inc Armored metal file band and production thereof
US3874126A (en) * 1971-10-15 1975-04-01 Remington Arms Co Inc Flexible hand held abrading tool
US4603678A (en) * 1984-10-05 1986-08-05 W. F. Meyers Company, Inc. Belt-configured saw for cutting slots into stone
US4679541A (en) * 1984-10-05 1987-07-14 W. F. Meyers Company, Inc. Belt-configured saw for cutting slots into stone
US5567503A (en) * 1992-03-16 1996-10-22 Sexton; John S. Polishing pad with abrasive particles in a non-porous binder
US6705936B2 (en) 2001-03-13 2004-03-16 Wendt Dunnington Company Large-width, angular-sided segmental superabrasive grinding wheel
EP1277546A1 (de) * 2001-07-20 2003-01-22 sia Abrasives Industries AG Schleifband mit einem Träger aus Vulkanfiber
US20090181608A1 (en) * 2008-01-15 2009-07-16 Iv Technologies Co., Ltd. Polishing pad and fabricating method thereof
US8517800B2 (en) * 2008-01-15 2013-08-27 Iv Technologies Co., Ltd. Polishing pad and fabricating method thereof
US20090258579A1 (en) * 2008-04-11 2009-10-15 Frederick Joslin Form transfer grinding method
US8216026B2 (en) * 2008-04-11 2012-07-10 United Technologies Corporation Form transfer grinding method
US8366515B2 (en) 2008-04-11 2013-02-05 United Technologies Corporation Form transfer grinding method
US20220254522A1 (en) * 2019-07-05 2022-08-11 Framatome Tubular component of pressurised water nuclear reactor, and method for manufacturing said component

Also Published As

Publication number Publication date
DE664808C (de) 1938-09-06

Similar Documents

Publication Publication Date Title
US2059583A (en) Abrasive belt
US2391731A (en) Spliced abrasive belt, band, and the like
US2347244A (en) Abrasive element
US2780533A (en) Abrasive article and method of making
US3190137A (en) Rubber faced belt with fiber traction surface
US2590697A (en) Endless abrasive belt and method of manufacturing same
USRE21890E (en) Industrial and papermakers felts
US2682733A (en) Flexible abrasive band
US3427765A (en) Abrasive belts and method of making same
US2257864A (en) Surfacing wheel
US2309305A (en) Abrasive article
US2294245A (en) Polishing belt
US3120724A (en) Buffing wheel
US1822856A (en) Abrasive pad
US2672715A (en) Abrasive belt
US2320139A (en) Flexible abrasive article
US2918762A (en) Abrasive devices
US2115209A (en) Abrasive wheel and method of using same
US2209074A (en) Wide abrasive belt
US1966473A (en) Coated article
US1954655A (en) Built-up abrasive element
GB453851A (en) Improvements in abrasive belts
US3005295A (en) Flexible abrasive bands
US2581934A (en) Abrading roll
US2209059A (en) Sectional endless belt