GB817631A - A method of and apparatus for gauging the thickness of applied coatings - Google Patents
A method of and apparatus for gauging the thickness of applied coatingsInfo
- Publication number
- GB817631A GB817631A GB1298455A GB1298455A GB817631A GB 817631 A GB817631 A GB 817631A GB 1298455 A GB1298455 A GB 1298455A GB 1298455 A GB1298455 A GB 1298455A GB 817631 A GB817631 A GB 817631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tool
- spindle
- coating
- thickness
- motor
- 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
Links
- 239000011248 coating agent Substances 0.000 abstract 6
- 238000000576 coating method Methods 0.000 abstract 6
- 239000000463 material Substances 0.000 abstract 4
- 230000035515 penetration Effects 0.000 abstract 3
- 238000005553 drilling Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/066—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness of coating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
817,631. Gauging thickness of coatings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 3, 1956 [May 4, 1955; Sept. 24, 1955], Nos. 12984/55 and 27289/55. Class 106 (2). A method of determining the thickness of a coating applied to a base material of a hardness or nature different from that of the coating comprises effecting a penetration through the coating by an abrading tool and utilizing the difference of nature to give an indication of the movement the tool has made to penetrate the coating. An electric motor 4 is mounted in a casing 1, with its rotor spindle 5, 6, vertical. At its upper end 5, the spindle is ground flat and acts against the plunger 7 of a depth gauge 8, the plunger being acted on by a spring 7a. At its lower end 6, the spindle carries an abrading tool 12 in the form of a rotary dental burr, having a partly spherical end of less than 1/ 32 inch radius. The spindle 5, 6, has a small end play in its bearings, which is sufficient to cover the thickness of the thickest coating likely to be measured. In order to raise the spindle 5, 6, and thus the tool 12, a rod 15 with a stepped end portion 15a is mounted under a flanged ring 13 secured to the spindle 6. In use the tool is lowered on to the surface by rotation of the rod 15 and the depth gauge set to zero. The motor 4 is then started and the tool gradually abrades away the coating under the action of the spring 7a and the weight of the armature. The speed of penetration is substantially constant until the base material is met, when there is a marked retardation in progress and the note of the tool changes. The motor is then stopped and the depth noted. Also described are a tool which operates on non-conductive coatings on a conductive base material and gives an indication by means of a lamp, when the material is reached, and a tool which can be operated by a spring motor. The drilling head may also be driven by compressed air, this being especially suitable for use under water. The apparatus may also include means for recording on a tape, the time for definite stages of penetration, e.g. every 0.001 inch.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB817631A true GB817631A (en) | 1959-08-06 |
Family
ID=1723543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1298455A Expired GB817631A (en) | 1955-05-04 | A method of and apparatus for gauging the thickness of applied coatings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB817631A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3093908A (en) * | 1960-09-20 | 1963-06-18 | Rabinow Engineering Co Inc | Viscous film thickness measuring gage |
| US3168784A (en) * | 1962-02-26 | 1965-02-09 | Corning Glass Works | Coating thickness measuring device |
| US3307266A (en) * | 1965-03-11 | 1967-03-07 | Brauson Instr Inc | Method and apparatus for measuring the thickness of a laminar layer |
| US3432933A (en) * | 1966-11-14 | 1969-03-18 | Robert E Wood | Gauge for measuring the thickness of blankets on printing rollers |
| US4377037A (en) * | 1980-02-13 | 1983-03-22 | Taylor James C | Device and method for the measurement of the thickness of a wet coating |
| GB2121965A (en) * | 1982-06-01 | 1984-01-04 | Joseph Charles Rocks | Printing press blanket gauge |
| US4450628A (en) * | 1982-06-04 | 1984-05-29 | Rocks Joseph C | Printing press blanket gauge |
| CN110639824A (en) * | 2019-08-30 | 2020-01-03 | 河南华通新材料有限公司 | Coating thickness inspection system for production of can cover pull ring material |
-
1955
- 1955-05-04 GB GB1298455A patent/GB817631A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3093908A (en) * | 1960-09-20 | 1963-06-18 | Rabinow Engineering Co Inc | Viscous film thickness measuring gage |
| US3168784A (en) * | 1962-02-26 | 1965-02-09 | Corning Glass Works | Coating thickness measuring device |
| US3307266A (en) * | 1965-03-11 | 1967-03-07 | Brauson Instr Inc | Method and apparatus for measuring the thickness of a laminar layer |
| US3432933A (en) * | 1966-11-14 | 1969-03-18 | Robert E Wood | Gauge for measuring the thickness of blankets on printing rollers |
| US4377037A (en) * | 1980-02-13 | 1983-03-22 | Taylor James C | Device and method for the measurement of the thickness of a wet coating |
| GB2121965A (en) * | 1982-06-01 | 1984-01-04 | Joseph Charles Rocks | Printing press blanket gauge |
| US4450628A (en) * | 1982-06-04 | 1984-05-29 | Rocks Joseph C | Printing press blanket gauge |
| CN110639824A (en) * | 2019-08-30 | 2020-01-03 | 河南华通新材料有限公司 | Coating thickness inspection system for production of can cover pull ring material |
| CN110639824B (en) * | 2019-08-30 | 2023-08-22 | 河南万达铝业有限公司 | Coating thickness inspection system for can lid pull ring material production |
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