DE42636C - Slate pencil sharpener - Google Patents
Slate pencil sharpenerInfo
- Publication number
- DE42636C DE42636C DENDAT42636D DE42636DA DE42636C DE 42636 C DE42636 C DE 42636C DE NDAT42636 D DENDAT42636 D DE NDAT42636D DE 42636D A DE42636D A DE 42636DA DE 42636 C DE42636 C DE 42636C
- Authority
- DE
- Germany
- Prior art keywords
- pencil sharpener
- slate pencil
- slate
- sleeve
- sheet
- 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 - Lifetime
Links
- 239000010454 slate Substances 0.000 title claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/006—Sharpeners for pencils or leads with rasping surfaces
Landscapes
- Drawing Aids And Blackboards (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Eine cylindrisch gebogene Stahlblechfeile ρ ist in eine Hülse h eingeschoben und wird in dieser mittelst zweier am oberen und unteren Ende befestigter Drahtringe r gehalten. Letztere dienen gleichzeitig zur Verhinderung des Einkantens des Schieferstiftes.A cylindrically curved sheet steel file ρ is inserted into a sleeve h and is held in this by means of two wire rings r attached to the upper and lower ends. The latter also serve to prevent the slate pin from edging.
Die Hülse h ist an dem oberen und unteren Ende durch je eine Kapsel k bezw. kt verschlossen, welche den Schieferstaub aufnehmen.The sleeve h is respectively at the upper and lower end by a capsule k. k t closed, which absorb the slate dust.
Die Verwendung einer feilenartig eingehauenen Hohlcylinderfläche hat gegenüber der Verwendung einer ebenen Feile den Vortheil, dafs man den Schieferstift, um eine gleichmäfsige kegelförmige Spitze zu erhalten, nur an der Cylinderfläche entlang zu führen braucht, ohne die Lage des Stiftes zu den Fingern zu ändern. Auch verhindert die vorliegende Einrichtung des Schieferstiftspitzers die Beschmutzung der Finger durch Schieferstaub.The use of a file-like hewn hollow cylinder surface has compared to the The advantage of using a flat file is that the slate pencil is used to make a uniform one to get a conical tip, just need to lead along the cylinder surface, without changing the position of the pen in relation to the fingers. Also prevents the present facility of the slate pencil sharpener the soiling of the fingers by slate dust.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE42636C true DE42636C (en) |
Family
ID=318019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT42636D Expired - Lifetime DE42636C (en) | Slate pencil sharpener |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE42636C (en) |
-
0
- DE DENDAT42636D patent/DE42636C/en not_active Expired - Lifetime
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