DE900543C - Fire box for burning pencil leads - Google Patents
Fire box for burning pencil leadsInfo
- Publication number
- DE900543C DE900543C DESCH1990D DESC001990D DE900543C DE 900543 C DE900543 C DE 900543C DE SCH1990 D DESCH1990 D DE SCH1990D DE SC001990 D DESC001990 D DE SC001990D DE 900543 C DE900543 C DE 900543C
- Authority
- DE
- Germany
- Prior art keywords
- burning
- pencil leads
- fire box
- box
- dimension
- 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
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens or the like for the charge within the furnace
- F27D5/0031—Treatment baskets for ceramic articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/16—Making non-propelling pencils
- B43K19/18—Making pencil writing-cores
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Charging Or Discharging (AREA)
Description
Glühkasten zum Brennen von Bleistiftminen Im Patent 748 037 ist ein Glühkasten zum Brennen von Bleistiftminen beschrieben, der in einer Dimension, z. B. der Breite oder der Höhe, eine verhältnismäßig kleine Abmessung besitzt. Der im Hauptpatent beschriebene Glühkasten ist aus einem metallischen Werkstoff hergestellt. Es hat sich nun herausgestellt, daß die Anwendung dieser Dimensionen auch dann vorteilhaft ist, wenn der Glühkasten aus einem Metallkarbid besteht. Als besonders geeignet hat sich Siliziumkarbid herausgestellt. Auch bei der Wahl von Metallkarbiden als Werkstoff für die Wandungen ist es möglich, eine geringe Wandstärke für die Kästen zu verwenden. Überdies sind die Metallkarbide sehr gute Wärmeleiter, so daß der aus ihnen hergestellte Glühkasten für den Zweck des Brennens von Bleistiftminen einen metallischen Kasten ersetzen kann, wobei die einfache Herstellung dieser Kästen von besonderem Vorteil ist.Incandescent box for burning pencil leads. Patent 748 037 describes an incandescent box for burning pencil leads which, in one dimension, e.g. B. the width or the height, has a relatively small dimension. The glow box described in the main patent is made of a metallic material. It has now been found that the use of these dimensions is also advantageous when the glow box consists of a metal carbide. Silicon carbide has proven to be particularly suitable. Even when choosing metal carbides as the material for the walls, it is possible to use a small wall thickness for the boxes. In addition, the metal carbides are very good heat conductors, so that the glow box made from them can replace a metal box for the purpose of burning pencil leads, the simple manufacture of these boxes being of particular advantage.
Die Verwendung von Siliziumkarbid zu feuerfesten Muffeln, Kapseln u. dgl. ist an sich bereits bekannt. Neu ist jedoch die Verwendung von Glühkästen aus diesem Werkstoff zum Brennen von Bleistiftminen in der Anwendung der Dimensionen nach Patent 748 037. Es ergeben sich hierbei die gleichen Vorteile, wie sie im Hauptpatent ge-. schildert sind.The use of silicon carbide for refractory muffles, capsules and the like are already known per se. What is new, however, is the use of annealing boxes from this material for burning pencil leads in the application of the dimensions after Patent 748 037. This results in the same advantages as in the main patent ge. are described.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH1990D DE900543C (en) | 1941-01-14 | 1941-01-14 | Fire box for burning pencil leads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH1990D DE900543C (en) | 1941-01-14 | 1941-01-14 | Fire box for burning pencil leads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE900543C true DE900543C (en) | 1953-12-28 |
Family
ID=7423101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH1990D Expired DE900543C (en) | 1941-01-14 | 1941-01-14 | Fire box for burning pencil leads |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE900543C (en) |
-
1941
- 1941-01-14 DE DESCH1990D patent/DE900543C/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| None * |
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