US750639A - graft - Google Patents
graft Download PDFInfo
- Publication number
- US750639A US750639A US750639DA US750639A US 750639 A US750639 A US 750639A US 750639D A US750639D A US 750639DA US 750639 A US750639 A US 750639A
- Authority
- US
- United States
- Prior art keywords
- attrition
- cement
- disks
- sheet
- dental
- 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
- 239000000463 material Substances 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 16
- 239000004568 cement Substances 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 229920002160 Celluloid Polymers 0.000 description 8
- 229910001651 emery Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 208000005358 Tooth Attrition Diseases 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 240000004375 Petrea volubilis Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052904 quartz Inorganic materials 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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
Definitions
- My invention has reference to improvements in attritiondisks for dental engines and also to a process for manufacturing the same, it having for its object essentially the production of a disk adapted to be attached to the mandrel of the dental engine and possessing great durability, together with a high attrition effect.
- my invention consists, essentially, in a process for manufacturing dental attrition-disks and the like, consisting in coating a sheet of plastic material, such as celluloid, with a cement and pulverulent material and then subjecting the combined mass to heat and pressure and also in a dental attritiondisk or the like composed of a body of plastic material, such as celluloid, a coating of cement, and a pulverulent attrition material having its particles embedded in said body and held thereto at and near their bases by the cement within the cavities in the body.
- Figure 1 represents a face view of an attrition-disk embodying my invention.
- Fig. 2 is a section through the same.
- Fig. 3 shows a sheet from which the disks are punched or cut.
- I take a sheet 1 of material which becomes plastic under heat to a suificient extent to permit pulverulent materialsuch as emery, sand, quartz, corundum, carborundum, and the liketo become embedded therein and subject the combined mass to heat and pressure, first coating the surface of the sheet with a cement. From the sheet 1 so prepared I cut the disks 2, circular in form, providing the same with a central opening 3 to adapt them to be fitted to the mandrel of a dental engine in the usual manner.
- the disk so prepared not only possesses more stiffness than the ordinary sand or emery paper disk, but at the same time the attrition material does not fall ofi so readily as in the ordinary emery or sand paper disk, and thus does not cause as much inconvenience to the patient as heretofore, and is also more durable than the disks heretofore used.
- WVhat I claim as new is l.
- the herein-described process for manufacturing dental attrition devices consisting in coating a sheet of plastic material such as celluloid with a cement and pulverulent attrition material, and then subjecting the combined mass to heat and pressure.
- a dental attrition device composed of a body of plastic material, such as celluloid, a coating of cement, and a pulverulent attrition material having its particles partially embedded in said body and held thereto at and near their bases by the ocment within the cavities in the body, substantially as described.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
No. 750,639. PATENTED JAN. 26, 1904. J. c. GRAFT. METHOD OF MANUFACTURING ATTRITION DISKS AND THE PRODUCT THEREOF.
APPLICATION FILED JULY 11, 1903.
A TTOHNE Y.
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No. 75o,e39.
UNITED STATES Patented January 26, 1904.
PATENT METHOD OF MANUFACTURING ATTRITION-DISKS AND THE PRODUCT THEREOF.
SPECIFICATION forming part of Letters Patent N0. 750,639, dated January 26, 1904.
Application filed July 11, 1903. Serial No. 165,069. (Model) To all whom it may concern:
Be it known that I, J OHN O. GRAFT, a citizen of the United States of America, residing at East Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Methods of Manufacturing Attrition-Disks and the Product Thereof, of which the following is a specification.
My invention has reference to improvements in attritiondisks for dental engines and also to a process for manufacturing the same, it having for its object essentially the production of a disk adapted to be attached to the mandrel of the dental engine and possessing great durability, together with a high attrition effect.
To this end my invention consists, essentially, in a process for manufacturing dental attrition-disks and the like, consisting in coating a sheet of plastic material, such as celluloid, with a cement and pulverulent material and then subjecting the combined mass to heat and pressure and also in a dental attritiondisk or the like composed of a body of plastic material, such as celluloid, a coating of cement, and a pulverulent attrition material having its particles embedded in said body and held thereto at and near their bases by the cement within the cavities in the body.
The nature of my invention will best be understood when described in connection with the accompanying drawings, in which Figure 1 represents a face view of an attrition-disk embodying my invention. Fig. 2 is a section through the same. Fig. 3 shows a sheet from which the disks are punched or cut.
' Similar numerals of reference designate corresponding parts throughout the several views of the drawings.
In carrying out my invention I take a sheet 1 of material which becomes plastic under heat to a suificient extent to permit pulverulent materialsuch as emery, sand, quartz, corundum, carborundum, and the liketo become embedded therein and subject the combined mass to heat and pressure, first coating the surface of the sheet with a cement. From the sheet 1 so prepared I cut the disks 2, circular in form, providing the same with a central opening 3 to adapt them to be fitted to the mandrel of a dental engine in the usual manner.
It will be readily understood that the disk so prepared not only possesses more stiffness than the ordinary sand or emery paper disk, but at the same time the attrition material does not fall ofi so readily as in the ordinary emery or sand paper disk, and thus does not cause as much inconvenience to the patient as heretofore, and is also more durable than the disks heretofore used.
It will be noticed that when the pulverulent attrition material is pressed into the sheet of plastic material the cement is carried down into the said body and on hardening firmly holds the particles to said body at and near their bases, thus preventing the same from becoming detached or separated from the body when the disk or the like is used.
WVhat I claim as new is l. The herein-described process for manufacturing dental attrition devices consisting in coating a sheet of plastic material such as celluloid with a cement and pulverulent attrition material, and then subjecting the combined mass to heat and pressure.
2. As a new article of manufacture, a dental attrition device composed of a body of plastic material, such as celluloid, a coating of cement, and a pulverulent attrition material having its particles partially embedded in said body and held thereto at and near their bases by the ocment within the cavities in the body, substantially as described.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
' JOHN C. GRAFT. Witnesses:
WM. S. BECHTOLD, A. FABER DU FAU'R, Jr.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US750639A true US750639A (en) | 1904-01-26 |
Family
ID=2819132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US750639D Expired - Lifetime US750639A (en) | graft |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US750639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830615A (en) * | 1987-07-02 | 1989-05-16 | Goldstein Ronald E | Two-grit cutting and polishing instruments |
| US6203322B1 (en) | 1999-04-15 | 2001-03-20 | David Kraenzle | Dental prophylaxis angle |
-
0
- US US750639D patent/US750639A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830615A (en) * | 1987-07-02 | 1989-05-16 | Goldstein Ronald E | Two-grit cutting and polishing instruments |
| US6203322B1 (en) | 1999-04-15 | 2001-03-20 | David Kraenzle | Dental prophylaxis angle |
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