DE516229C - Process for the production of pencil leads from graphite - Google Patents
Process for the production of pencil leads from graphiteInfo
- Publication number
- DE516229C DE516229C DEP60760D DEP0060760D DE516229C DE 516229 C DE516229 C DE 516229C DE P60760 D DEP60760 D DE P60760D DE P0060760 D DEP0060760 D DE P0060760D DE 516229 C DE516229 C DE 516229C
- Authority
- DE
- Germany
- Prior art keywords
- production
- graphite
- pencil leads
- pencil
- leads
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 5
- 229910002804 graphite Inorganic materials 0.000 title claims description 5
- 239000010439 graphite Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000003921 oil Substances 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims 1
- 240000007817 Olea europaea Species 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- 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
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
Verfahren zur Herstellung von Bleistiftminen aus Graphit Nach dem Patent 505 144 werden Bleistiftminen aus Graphit in der Weise hergestellt, daß vor oder während des Knetens und Pressens der Bleistiftminenmasse Türkischrotöl zugesetzt wird. Es hat sich nun herausgestellt, daß außer Türkischrotöl auch andere sulfurierte Öle, wie Oliven- oder Baumöl, verwendet werden können. Es werden dadurch die gleichen Vorteile hinsichtlich der Verwendung verschiedener Graphitsorten, der Vereinfachung des Verfahrens sowie der Güte der Minen erreicht wie bei der Verarbeitung von Türkischrotöl nach dem genannten Hauptpatent.Process for the production of pencil leads from graphite According to the patent 505 144 pencil leads are made from graphite in such a way that Turkish red oil is added to the pencil lead mass before or during kneading and pressing. It has now been found that, in addition to Turkish red oil, other sulfurized oils, such as olive or tree oil, can also be used. As a result, the same advantages with regard to the use of different types of graphite, the simplification of the process and the quality of the mines are achieved as in the processing of Turkish red oil according to the main patent mentioned.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP60760D DE516229C (en) | 1929-07-16 | 1929-07-16 | Process for the production of pencil leads from graphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP60760D DE516229C (en) | 1929-07-16 | 1929-07-16 | Process for the production of pencil leads from graphite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE516229C true DE516229C (en) | 1931-01-20 |
Family
ID=7389521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP60760D Expired DE516229C (en) | 1929-07-16 | 1929-07-16 | Process for the production of pencil leads from graphite |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE516229C (en) |
-
1929
- 1929-07-16 DE DEP60760D patent/DE516229C/en not_active Expired
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