US1435721A - Abrasive structure and method of making same - Google Patents
Abrasive structure and method of making same Download PDFInfo
- Publication number
- US1435721A US1435721A US405498A US40549820A US1435721A US 1435721 A US1435721 A US 1435721A US 405498 A US405498 A US 405498A US 40549820 A US40549820 A US 40549820A US 1435721 A US1435721 A US 1435721A
- Authority
- US
- United States
- Prior art keywords
- abrasive
- making same
- gum
- abrasive structure
- sheet material
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0045—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by stacking sheets of abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
Definitions
- One object of our invention is to provide a novel abrasive body or material possessing certain characteristics especially fitted for though not limited to use in the form of high speed abrasive wheels, it being particularly desired to make an abrasive wheel which will not be subject to breakage when operated at the highest required speeds of rotation.
- the invention further contemplates a novel method of procedure for making abrasive wheels and other structures, which in addition to possessing high tensile strength, shall acceptably meet the requirements for high grade abrasive bodies; that is, shall have long life, high cutting capacity, etc.
- ig. 1 is an end elevation of an abrasive wheel made in accordance with our invention.
- Fig. 2 is a vertical section on the line 2-2, Fig. 1;. further illustrating the structure shown in said figure;
- Fig. 3 is an end elevation of a slightly modified form of the invention.
- an abrasive structure such as a' wheel
- a series of discs or other suitably formed sheets of fibrous material or fabric such as canvas, muslin, paper or the like
- a solution of a synthetic gum such as the material known to the trade as Condensite
- abrasive in powdered form in a typical case soaking a series of canvas discs in a solu'tion-of-Condensite in acetone, to which the material known to the trade as powdered Carborundum has been added until the discs are thoroughly impregnated with said solution.
- They are then transferred to an oven where the solvent is driven off and they are dried ;the abrasive powder being mechanically held by the dried gum to the surface of said discs.
- the discs 1 are then built up in a pile of substantially cylindrical form and between.
- each pair of adjacent discs is placed a layer 2 of a more or less finely divided abrasive such as Carborundum, the material known to the trade as Aloxite, or the like, providing a structure consisting of alternate layers of fibrous impregnated material andabrasive; the latter being in the proportion of ten to twenty parts by weight to one of the fibrous synthetic material, or in a typical case'being in a layer whose thickness is substantially equal to that of the fibrous material.
- the built up structure is then subjected to a temperature such as that of steam at one hundredand twenty-five pounds pressure, in a mold or form where it is at the same time subjected to a pressure of about one thousand pounds to the square inch, for a period of about one-half hour.
- a temperature such as that of steam at one hundredand twenty-five pounds pressure
- a mold or form where it is at the same time subjected to a pressure of about one thousand pounds to the square inch, for a period of about one-half hour.
- the completed cy-J lindric'al or other mass may be bored for the reception of a hub or bushing and may be suitably formed to serve as an abrasive wheel or other desired structure. If it be required that this latter shall be relatively light and with a view to facilitating its manufacture, instead of discs of fabric we employ rings 5 as indicated in Fig. 3, which as before are impregnated with the synthetic gum or equlvalent material with or without the suspended abrasive powder and are built up into a structure with alternate layers of abrasive powder or granules.
- the hollow centers of the rings are filled with molding powder or other suitable easily removable solid, which after the treatment necessary to change the synthetic gum to its final solid form, may be easily and quickly bored out without subjecting the boring tool to the injurious effects of the abrasive, as would be the case in the structure shown in Fig. 1 where the layers of abrasive 2 were substantially con tinuous from the center to the edge of each disc 1.
- the method which consists in placing fibrous sheet material in a solution of a synthetic gum containing suspended finely divided abrasive material to impregnate said sheet material with the gum and obtain de- 10 posits of the abrasive on the surface; drying the sheet material; forming a structure of alternated layers of said sheet material and. finely divided abrasive; and subjecting said structure to heat and pressure to cause the 15 gum to assume its final solid form.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
J. McINTOSH AND J. R. NEILL.
ABRASIVE STRUCTURE AND METHOD OF MAKING SAME APPLICATION FILED AUG.23, 1920.
EA35721 Patented Nov, M, 1922.
JAMES MOINTOSH AND JOSEPH R. NEILL, OF NORRISTOWN, PENNSYLVANIA TES ASSIGNORS TO DIAMOND STATE FIBRE COMPANY OF ELSMERE, DELAWARE,
A CORPORATION OF DELAWARE.
'ABRASIVE STRUCTURE AND METHOD OF MAKING SAME.
Application-filed August as, 1920. Serial No. 405,498.
To all whom it may concern.
Be it known that we, JAMES MoIN'rosH and JOSEPH R. NEILL, citizens of the United States, residing in Norristown, Pennsylvania, have invented Abrasive Structures and Methods of Making Same, of which the following is a specification.
One object of our invention is to provide a novel abrasive body or material possessing certain characteristics especially fitted for though not limited to use in the form of high speed abrasive wheels, it being particularly desired to make an abrasive wheel which will not be subject to breakage when operated at the highest required speeds of rotation.
The invention further contemplates a novel method of procedure for making abrasive wheels and other structures, which in addition to possessing high tensile strength, shall acceptably meet the requirements for high grade abrasive bodies; that is, shall have long life, high cutting capacity, etc.
These objects and other advantageous ends we attain as hereinafter set forth, reference being had to the accompanying drawings, in which,
ig. 1 is an end elevation of an abrasive wheel made in accordance with our invention; and
Fig. 2 is a vertical section on the line 2-2, Fig. 1;. further illustrating the structure shown in said figure; and
Fig. 3 is an end elevation of a slightly modified form of the invention.
In making an abrasive structure such as a' wheel, we first treat a series of discs or other suitably formed sheets of fibrous material or fabric such as canvas, muslin, paper or the like, with a solution of a synthetic gum such as the material known to the trade as Condensite, loaded with abrasive in powdered form in a typical case soaking a series of canvas discs in a solu'tion-of-Condensite in acetone, to which the material known to the trade as powdered Carborundum has been added until the discs are thoroughly impregnated with said solution. They are then transferred to an oven where the solvent is driven off and they are dried ;the abrasive powder being mechanically held by the dried gum to the surface of said discs.
The discs 1 are then built up in a pile of substantially cylindrical form and between.
each pair of adjacent discs is placed a layer 2 of a more or less finely divided abrasive such as Carborundum, the material known to the trade as Aloxite, or the like, providing a structure consisting of alternate layers of fibrous impregnated material andabrasive; the latter being in the proportion of ten to twenty parts by weight to one of the fibrous synthetic material, or in a typical case'being in a layer whose thickness is substantially equal to that of the fibrous material. The built up structure is then subjected to a temperature such as that of steam at one hundredand twenty-five pounds pressure, in a mold or form where it is at the same time subjected to a pressure of about one thousand pounds to the square inch, for a period of about one-half hour. By this means the synthetic gum is caused to flow and harden to its final solid, infusible, dense form so that the finished mass is in the form of a solid, dense structure of practically uniform composition, possessing the qualities desired in a high class abrasive.
By any suitable means the completed cy-J lindric'al or other mass may be bored for the reception of a hub or bushing and may be suitably formed to serve as an abrasive wheel or other desired structure. If it be required that this latter shall be relatively light and with a view to facilitating its manufacture, instead of discs of fabric we employ rings 5 as indicated in Fig. 3, which as before are impregnated with the synthetic gum or equlvalent material with or without the suspended abrasive powder and are built up into a structure with alternate layers of abrasive powder or granules. The hollow centers of the rings are filled with molding powder or other suitable easily removable solid, which after the treatment necessary to change the synthetic gum to its final solid form, may be easily and quickly bored out without subjecting the boring tool to the injurious effects of the abrasive, as would be the case in the structure shown in Fig. 1 where the layers of abrasive 2 were substantially con tinuous from the center to the edge of each disc 1.
We claim 1. The method which consists in placing fibrous sheet material in a solution of a synthetic gum to impregnate said sheet material with the gum; drying the sheet material;
forming a structure of alternated layers of said sheet material and finely divided abrasive; and subjecting said structure .to heat and pressuretocause the gum to assume its final solid form.
2. The method which consists in placing fibrous sheet material in a solution of a synthetic gum containing suspended finely divided abrasive material to impregnate said sheet material with the gum and obtain de- 10 posits of the abrasive on the surface; drying the sheet material; forming a structure of alternated layers of said sheet material and. finely divided abrasive; and subjecting said structure to heat and pressure to cause the 15 gum to assume its final solid form.
JAMES MoINTOSH.
JOSEPH R. NEILL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US405498A US1435721A (en) | 1920-08-23 | 1920-08-23 | Abrasive structure and method of making same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US405498A US1435721A (en) | 1920-08-23 | 1920-08-23 | Abrasive structure and method of making same |
Publications (1)
Publication Number | Publication Date |
---|---|
US1435721A true US1435721A (en) | 1922-11-14 |
Family
ID=23603948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US405498A Expired - Lifetime US1435721A (en) | 1920-08-23 | 1920-08-23 | Abrasive structure and method of making same |
Country Status (1)
Country | Link |
---|---|
US (1) | US1435721A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2457012A (en) * | 1944-06-27 | 1948-12-21 | Carborundum Co | Abrasive article and method of making |
US2477602A (en) * | 1943-04-02 | 1949-08-02 | Minnesota Mining & Mfg | Contact roll for abrasive belts |
US2532248A (en) * | 1948-06-11 | 1950-11-28 | Carborundum Co | Fibrous polishing device |
US2726495A (en) * | 1952-10-04 | 1955-12-13 | Field Albert | Abrading implement |
US2757494A (en) * | 1951-06-12 | 1956-08-07 | Chaudron Charles Edouard | Grinding and polishing glass |
US2768483A (en) * | 1953-01-19 | 1956-10-30 | Rexall Drug Company | Abrasive article and method of making |
US2805530A (en) * | 1955-06-30 | 1957-09-10 | Schaffner Mfg Company Inc | Finishing apparatus |
US2871633A (en) * | 1959-02-03 | Klingspor | ||
US2952951A (en) * | 1952-07-28 | 1960-09-20 | Simpson Harry Arthur | Abrasive or like materials and articles |
US3385139A (en) * | 1966-06-10 | 1968-05-28 | English Electric Co Ltd | Cable stripping |
CN108453639A (en) * | 2018-01-25 | 2018-08-28 | 金勇� | A kind of flap wheel and preparation method thereof |
-
1920
- 1920-08-23 US US405498A patent/US1435721A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2871633A (en) * | 1959-02-03 | Klingspor | ||
US2477602A (en) * | 1943-04-02 | 1949-08-02 | Minnesota Mining & Mfg | Contact roll for abrasive belts |
US2457012A (en) * | 1944-06-27 | 1948-12-21 | Carborundum Co | Abrasive article and method of making |
US2532248A (en) * | 1948-06-11 | 1950-11-28 | Carborundum Co | Fibrous polishing device |
US2757494A (en) * | 1951-06-12 | 1956-08-07 | Chaudron Charles Edouard | Grinding and polishing glass |
US2952951A (en) * | 1952-07-28 | 1960-09-20 | Simpson Harry Arthur | Abrasive or like materials and articles |
US2726495A (en) * | 1952-10-04 | 1955-12-13 | Field Albert | Abrading implement |
US2768483A (en) * | 1953-01-19 | 1956-10-30 | Rexall Drug Company | Abrasive article and method of making |
US2805530A (en) * | 1955-06-30 | 1957-09-10 | Schaffner Mfg Company Inc | Finishing apparatus |
US3385139A (en) * | 1966-06-10 | 1968-05-28 | English Electric Co Ltd | Cable stripping |
CN108453639A (en) * | 2018-01-25 | 2018-08-28 | 金勇� | A kind of flap wheel and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1435721A (en) | Abrasive structure and method of making same | |
US3794509A (en) | Carbon disk processing technique to retard oxidation | |
US3672936A (en) | Reinforced carbon and graphite articles | |
US2862806A (en) | Molded rotative abrasive articles and method of making | |
US2398890A (en) | Reinforced abrasive article and method of making same | |
JPS6049086B2 (en) | Rotating member and method for manufacturing the member | |
US3734797A (en) | Carbon disk quality processing | |
US2599826A (en) | Reinforced friction facing | |
US3290423A (en) | Manufacture of friction discs | |
US1448180A (en) | Composite laminated structure | |
US2186001A (en) | Flexible abrasive sheet material | |
US2378386A (en) | Method of making abrasive articles | |
US1776879A (en) | Impregnated and coated fabric | |
US2000772A (en) | Grindstone | |
US1236460A (en) | Waterproof material and process of making same. | |
US2624660A (en) | Grinding wheel | |
US1665902A (en) | Molded article | |
US1223216A (en) | Gear. | |
US2988860A (en) | Abrasive structures and reinforcing therefor | |
US2652321A (en) | Grinding wheel | |
US2178835A (en) | Grinding wheel | |
US1441133A (en) | Process of making laminated fiber products | |
US1714999A (en) | Method of manufacturing and core for hollow rubber articles | |
US341925A (en) | lemassena | |
US1504596A (en) | Gear wheel |