GB879359A - Projection instrument for reading off and setting linear and angular scale divisions - Google Patents
Projection instrument for reading off and setting linear and angular scale divisionsInfo
- Publication number
- GB879359A GB879359A GB1251759A GB1251759A GB879359A GB 879359 A GB879359 A GB 879359A GB 1251759 A GB1251759 A GB 1251759A GB 1251759 A GB1251759 A GB 1251759A GB 879359 A GB879359 A GB 879359A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- screen
- marker
- movement
- counter
- 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
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
- G01C1/06—Arrangements for reading scales
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
879,359. Optical gauging-apparatus. HEIDENHAIN, J., [trading as WENCZLER & HEIDENHAIN.]. April 13, 1959 [April 16, 1958], No. 12517/59. Class 106 (2). [Also in Group XX] A scale reading device comprises a projection apparatus for projecting an enlarged image of part of a graduated scale upon a screen, a marker adapted for movement over the screen, said marker being coupled to a counter for indicating the position of the marker, relative to the screen. As shown, an image T<SP>1</SP>, of a graduation T on scale M is projected on to a screen W and a fork-shaped marker G can, by rotation of knob D for fine movement and knob F for coarse movement, be moved over the screen, this movement being transmitted to a counter Z through gearing K. It is possible to arrange that, for a linear scale, the counter moves a hundred times between two graduations on the scale, and for a circular scale two counters may be provided so that for 120 revolutions of spindle S a scale of 10 minutes can be covered in 120 steps of 5 seconds each.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW23148A DE1151131B (en) | 1958-04-16 | 1958-04-16 | Device for displaying length and angle measurement values |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB879359A true GB879359A (en) | 1961-10-11 |
Family
ID=7597486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1251759A Expired GB879359A (en) | 1958-04-16 | 1959-04-13 | Projection instrument for reading off and setting linear and angular scale divisions |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH370252A (en) |
| DE (1) | DE1151131B (en) |
| FR (1) | FR1219967A (en) |
| GB (1) | GB879359A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB703341A (en) * | 1949-11-01 | 1954-02-03 | John Stanley Appleby | Improvements in or relating to the measurement of intervals of length |
-
1958
- 1958-04-16 DE DEW23148A patent/DE1151131B/en active Pending
-
1959
- 1959-04-11 CH CH7200759A patent/CH370252A/en unknown
- 1959-04-13 GB GB1251759A patent/GB879359A/en not_active Expired
- 1959-04-15 FR FR792167A patent/FR1219967A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1151131B (en) | 1963-07-04 |
| FR1219967A (en) | 1960-05-20 |
| CH370252A (en) | 1963-06-30 |
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