JPS6461298A - Ruler for reading and writing angle - Google Patents
Ruler for reading and writing angleInfo
- Publication number
- JPS6461298A JPS6461298A JP21857187A JP21857187A JPS6461298A JP S6461298 A JPS6461298 A JP S6461298A JP 21857187 A JP21857187 A JP 21857187A JP 21857187 A JP21857187 A JP 21857187A JP S6461298 A JPS6461298 A JP S6461298A
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- line
- standard line
- drawn
- degrees
- 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.)
- Pending
Links
Abstract
PURPOSE: To accurately draw linear segments making a certain angle with respect to a standard line by rendering the linear segment connecting two points of 0 and 180 degrees form a single side of ruler. CONSTITUTION: A standard line 5 is drawn on a draft 4. After making the standard line 5 agree with protracting line 2 on the ruler 1 to which corresponding angular degrees have been indicated, a straight line is drawn along the side A of the ruler 1. This line becomes the desired segment 8. Because the linear segment connecting points of 0 and 180 degrees of angle indication digit 3 agrees with the side A of the ruler 1, desired linear segments can simply be drawn at a time and mistake in marking can be eliminated. Next, the ruler 1 is made parallel translation S to another standard line 7 by means of auxiliary ruler 6. When the protracting line 2 superposes on the standard line 7, lines are drawn along the side A.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21857187A JPS6461298A (en) | 1987-09-01 | 1987-09-01 | Ruler for reading and writing angle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21857187A JPS6461298A (en) | 1987-09-01 | 1987-09-01 | Ruler for reading and writing angle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6461298A true JPS6461298A (en) | 1989-03-08 |
Family
ID=16722032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21857187A Pending JPS6461298A (en) | 1987-09-01 | 1987-09-01 | Ruler for reading and writing angle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6461298A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS476118U (en) * | 1971-02-21 | 1972-09-20 | ||
JPS4944348B1 (en) * | 1969-09-05 | 1974-11-27 |
-
1987
- 1987-09-01 JP JP21857187A patent/JPS6461298A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4944348B1 (en) * | 1969-09-05 | 1974-11-27 | ||
JPS476118U (en) * | 1971-02-21 | 1972-09-20 |
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