DE900543C - Fire box for burning pencil leads - Google Patents

Fire box for burning pencil leads

Info

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
Application number
DESCH1990D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schwan Bleisteft Fabrik Schwanhaeusser and Co
Original Assignee
Schwan Bleisteft Fabrik Schwanhaeusser and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schwan Bleisteft Fabrik Schwanhaeusser and Co filed Critical Schwan Bleisteft Fabrik Schwanhaeusser and Co
Priority to DESCH1990D priority Critical patent/DE900543C/en
Application granted granted Critical
Publication of DE900543C publication Critical patent/DE900543C/en
Expired legal-status Critical Current

Links

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)

PATENTANSPRUCH: Glühkasten zum Brennen von Bleistiftminen nach Patent 748 037, dadurch gekennzeichnet, daß bei Verwendung von Kästen, die mindestens in einer Dimension eine verhältnismäßig kleine Abmessung von weniger als etwa 5 cm besitzen, diese aus einem Metallkarbid, insbe-" -sondere ätis- Sirziüinkarbid, hergestellt sind. Angezogene Druckschriften: TOnirndustrie-Zeitung 1932, S. r242, 1244.PATENT CLAIM: glow box for burning pencil leads according to patent 748 037, characterized in that when using boxes that are at least in one dimension has a relatively small dimension of less than about 5 cm own, this made of a metal carbide, in particular- "-s special ätis- syrziüinkarbid are. Printed publications: TOnirndustrie-Zeitung 1932, p. R242, 1244.
DESCH1990D 1941-01-14 1941-01-14 Fire box for burning pencil leads Expired DE900543C (en)

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)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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