JPH0257005U - - Google Patents
Info
- Publication number
- JPH0257005U JPH0257005U JP13612388U JP13612388U JPH0257005U JP H0257005 U JPH0257005 U JP H0257005U JP 13612388 U JP13612388 U JP 13612388U JP 13612388 U JP13612388 U JP 13612388U JP H0257005 U JPH0257005 U JP H0257005U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- thermal expansion
- heat
- utility
- expansion coefficient
- 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.)
- Granted
Links
- 239000000470 constituent Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
第１図は直角定規の温度変形を測定する様子を
表した図、第２図ａ，ｂ，ｃは夫々異なる構成材
料の直角定規の横断面図である。
図中、１……直角定規、１Ａ……長片、１Ｂ…
…短片、２……定盤、３……ダイアルゲージであ
る。
FIG. 1 is a diagram showing how the temperature deformation of a square ruler is measured, and FIGS. 2a, b, and c are cross-sectional views of square rulers made of different constituent materials. In the figure, 1...Right angle ruler, 1A...Long piece, 1B...
...short piece, 2...surface plate, 3...dial gauge.
Claims (1)
−７／°Ｃ以下の耐熱結晶化ガラスを構成材料と
してなることを特徴とする直角定規。 Thermal expansion coefficient at normal operating temperature is 15 x 10
A right-angle ruler characterized by being made of heat-resistant crystallized glass having a temperature of -7 °C or less as a constituent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13612388U JPH0425601Y2 (en) | 1988-10-20 | 1988-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13612388U JPH0425601Y2 (en) | 1988-10-20 | 1988-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257005U true JPH0257005U (en) | 1990-04-25 |
| JPH0425601Y2 JPH0425601Y2 (en) | 1992-06-19 |
Family
ID=31396339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13612388U Expired JPH0425601Y2 (en) | 1988-10-20 | 1988-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425601Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031524A (en) * | 2000-07-18 | 2002-01-31 | Toray Ind Inc | Standard plate for calibration of length measuring machine, method for measuring machine difference, and method for manufacturing plasma display panel |
-
1988
- 1988-10-20 JP JP13612388U patent/JPH0425601Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031524A (en) * | 2000-07-18 | 2002-01-31 | Toray Ind Inc | Standard plate for calibration of length measuring machine, method for measuring machine difference, and method for manufacturing plasma display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425601Y2 (en) | 1992-06-19 |