GB863868A - Improvements relating to the determination of datum lines in manufacturing processesupon solid objects - Google Patents
Improvements relating to the determination of datum lines in manufacturing processesupon solid objectsInfo
- Publication number
- GB863868A GB863868A GB3850657A GB3850657A GB863868A GB 863868 A GB863868 A GB 863868A GB 3850657 A GB3850657 A GB 3850657A GB 3850657 A GB3850657 A GB 3850657A GB 863868 A GB863868 A GB 863868A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workpiece
- shaded areas
- generator line
- processesupon
- determination
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Machine Tool Copy Controls (AREA)
Abstract
863,868. Optical gauging apparatus. VICKERS AIRCRAFT HOLDINGS Ltd. Nov. 17, 1958 [Dec. 11, 1957], No. 38506/57. Class 106 (2). [Also in Group XXII] Apparatus for indicating the disparity between the surface of a workpiece G and a generator line EF to conform with which the surface is to be reduced, comprises optical means A, B which project light beams upon the workpiece to form two linear images which will coincide in the generator line EF and a differentially illuminated area a, b is produced which must be removed from the workpiece to reduce it to the generator line EF. Knife edge stops C, D, which may be alternately serrated, intersect the light beams from projectors A, B to form the shaded areas a, b. In a modification, Fig. 2, light from a source P is reflected by a concave mirror Q and then by plane mirrors R<SP>1</SP>, R<SP>2</SP>, S<SP>1</SP>, S<SP>2</SP>. Beams are projected vertically and horizontally on to a model aeroplane wing W and the shaded areas x, y denote the amount of material to be removed. The workpiece may be supported on a table with means for adjusting its position by both rotation and transition. The apparatus may be used to check the alignment of a workpiece on a machine bed. The removal of elements from the surface may be controlled by recorded observation or by an automatic relay system actuated by signals emitted from a photo-electric cell trained on the shaded areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3850657A GB863868A (en) | 1957-12-11 | 1957-12-11 | Improvements relating to the determination of datum lines in manufacturing processesupon solid objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3850657A GB863868A (en) | 1957-12-11 | 1957-12-11 | Improvements relating to the determination of datum lines in manufacturing processesupon solid objects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB863868A true GB863868A (en) | 1961-03-29 |
Family
ID=10403915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3850657A Expired GB863868A (en) | 1957-12-11 | 1957-12-11 | Improvements relating to the determination of datum lines in manufacturing processesupon solid objects |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB863868A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51946Y1 (en) * | 1969-06-26 | 1976-01-12 | ||
| JPS5317141A (en) * | 1976-07-21 | 1978-02-16 | Hokusho Kk | Watermelon grading method |
| EP0081376A2 (en) * | 1981-12-09 | 1983-06-15 | Gkn Technology Limited | Crankshaft centring |
-
1957
- 1957-12-11 GB GB3850657A patent/GB863868A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51946Y1 (en) * | 1969-06-26 | 1976-01-12 | ||
| JPS5317141A (en) * | 1976-07-21 | 1978-02-16 | Hokusho Kk | Watermelon grading method |
| EP0081376A2 (en) * | 1981-12-09 | 1983-06-15 | Gkn Technology Limited | Crankshaft centring |
| EP0081376A3 (en) * | 1981-12-09 | 1984-08-29 | Gkn Technology Limited | Crankshaft centring |
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