GB970523A - Improvements in or relating to an apparatus for marking the scales of a measuring instrument - Google Patents
Improvements in or relating to an apparatus for marking the scales of a measuring instrumentInfo
- Publication number
- GB970523A GB970523A GB2866463A GB2866463A GB970523A GB 970523 A GB970523 A GB 970523A GB 2866463 A GB2866463 A GB 2866463A GB 2866463 A GB2866463 A GB 2866463A GB 970523 A GB970523 A GB 970523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- pointer
- instrument
- marking
- dial
- 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
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/02—Rulers with scales or marks for direct reading
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
970, 523. Dividing engines for making calibrations. ALBERT LE BOEUF ET FILS. July 19, 1963 [Aug. 3, 1962], No. 28664/63. Heading G1X. An apparatus for marking the scale of a measuring instrument 4 comprises a rotatable plate 1 on which are placed in respective symmetrical positions, the measuring instrument 4 to be calibrated and its dial 6, means for imparting to the pointer 3 of the instrument 4 successive increments of motion corresponding to successive scale values of the quantity which the instrument is intended to measure, means for bringing the rotation of the plate 1 under control of the pointer, and means 5 for plotting a mark on the scale at the end of the station of the plate corresponding to each of the increments. The instrument 4 is mounted so that the pointer 3 rotates about the same axis as that of the plate 1. The plate carries the marking device 5 and a detection device 2 for the detection of the position of the pointer 3, which device incorporates a light source and photo-electric cell (not shown) with a mirror 14 included in the optical path between these two. The plate 1 is rotated by a motor 11 under control of the device 2, and in use a desired electrical signal is applied to the instrument 4, the plate 1 is rotated by the motor 11 until the light path between the light source and photoelectric cell is interrupted i.e. until the mirror 14 is in line with the pointer 3, when the rotation of the plate is stopped and the marking device 5 is actuated to mark the dial 6. The Specification describes an automatic control circuit for the apparatus in which successive equal electrical voltage increments are applied to the instrument 4, and between each increment, the plate 1 is rotated automatically to detect the position of the pointer 3, and the device 5 is actuated to mark the dial 6 with a line ' of the desired length.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR906142A FR1339602A (en) | 1962-08-03 | 1962-08-03 | Machine for tracing the graduation lines of a measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB970523A true GB970523A (en) | 1964-09-23 |
Family
ID=8784646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2866463A Expired GB970523A (en) | 1962-08-03 | 1963-07-19 | Improvements in or relating to an apparatus for marking the scales of a measuring instrument |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1339602A (en) |
GB (1) | GB970523A (en) |
-
1962
- 1962-08-03 FR FR906142A patent/FR1339602A/en not_active Expired
-
1963
- 1963-07-19 GB GB2866463A patent/GB970523A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1339602A (en) | 1963-10-11 |
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