AT144334B - Device for sharpening drawing pens. - Google Patents

Device for sharpening drawing pens.

Info

Publication number
AT144334B
AT144334B AT144334DA AT144334B AT 144334 B AT144334 B AT 144334B AT 144334D A AT144334D A AT 144334DA AT 144334 B AT144334 B AT 144334B
Authority
AT
Austria
Prior art keywords
sharpening
drawing pens
recess
pens
longitudinal groove
Prior art date
Application number
Other languages
German (de)
Inventor
Konstantin Ing Predragovic
Original Assignee
Konstantin Ing Predragovic
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 Konstantin Ing Predragovic filed Critical Konstantin Ing Predragovic
Application granted granted Critical
Publication of AT144334B publication Critical patent/AT144334B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zum   Schärfen   von Reissfedern. 



   Die Vorrichtung gemäss der Erfindung dient zum Schärfen von schon stumpf und unbrauchbar gewordenen Ausziehfedern. 



   In der Zeichnung zeigt Fig. 1 den   Längenschnitt,   Fig. 2 die Ansicht von oben und Fig. 3 die Längenansieht eines Ausführungsbeispieles des Erfindungsgegenstandes in natürlicher Grösse. Die Vorrichtung besteht aus einem runden Stäbchen harten Stahles, an dessen Seite eine keilförmige Längsnut eingeschnitten und an dessen einem oder beiden Enden eine Vertiefung, anfangs zylindrisch, dann kegelförmig, unter einem Winkel von 45  bis 60  eingearbeitet ist. 



   Beim Gebrauche wird die Feder, bei welcher die Spitzen ungleich lang sind, vollkommen geschlossen in der Längsnut, in welche ein wenig feinstes Schmirgelpulver oder   Karborundum   gestreut wird, so lange hin und her gezogen, bis die Spitzen gleich lang geworden sind. Sodann wird das   Stahlstäbchen   mit dem vertieften Ende, in welches gleichfalls Schmirgelpulver gestreut wird, mit den Fingern der linken Hand nach oben gehalten und die mit den Fingern der rechten Hand gehaltene, ganz geöffnete Reissfeder in der Vertiefung unter beliebiger Lage einige Male hin und her gedreht, wodurch sie vollkommen genau geschärft wird, so dass sie zum Ausziehen auch der feinsten Linien geeignet ist. 



   Bei gebogenen Zirkelfedern wird die Feder oben gehalten und das   Stäbchen   von unten an der Feder gedreht. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Device for sharpening drawing pens.



   The device according to the invention is used to sharpen extension springs that have already become blunt and unusable.



   In the drawing, FIG. 1 shows the longitudinal section, FIG. 2 shows the view from above and FIG. 3 shows the length view of an embodiment of the subject matter of the invention in natural size. The device consists of a round rod of hard steel, on the side of which a wedge-shaped longitudinal groove is cut and at one or both ends of which a recess, initially cylindrical, then conical, is machined at an angle of 45 to 60.



   In use, the spring, in which the tips are of unequal length, is completely closed in the longitudinal groove, into which a little fine emery powder or carborundum is sprinkled, and pulled back and forth until the tips have become the same length. Then the steel rod with the recessed end, into which emery powder is also sprinkled, is held upwards with the fingers of the left hand and the fully opened drawing pen, held with the fingers of the right hand, is turned back and forth in the recess a few times in any position , whereby it is perfectly sharpened so that it is suitable for drawing out even the finest lines.



   With curved compass springs, the spring is held at the top and the rod is turned from below on the spring.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Vorrichtung zum Schärfen von Reissfedern, gekennzeichnet durch ein Stäbchen aus hartem Metall, an dessen Seite eine Längsnut eingeschnitten und an dessen einem oder beiden Enden eine Vertiefung, anfangs zylindrisch, dann kegelförmig unter einem spitzen Winkel ausgearbeitet ist. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device for sharpening drawing pens, characterized by a rod made of hard metal, on the side of which a longitudinal groove is cut and at one or both ends of which a recess, initially cylindrical, then conical at an acute angle, is worked out. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT144334D 1935-03-13 1935-03-13 Device for sharpening drawing pens. AT144334B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT144334T 1935-03-13

Publications (1)

Publication Number Publication Date
AT144334B true AT144334B (en) 1936-01-10

Family

ID=3643070

Family Applications (1)

Application Number Title Priority Date Filing Date
AT144334D AT144334B (en) 1935-03-13 1935-03-13 Device for sharpening drawing pens.

Country Status (1)

Country Link
AT (1) AT144334B (en)

Similar Documents

Publication Publication Date Title
AT144334B (en) Device for sharpening drawing pens.
DE487494C (en) Pocket knife with sharpening steel
AT125440B (en) Stand for fountain pens.
DE365337C (en) Device for sharpening pencils and other pens
DE647282C (en) Grinding device with hollow-shaped grinding body for regrinding double-edged razor blades
DE695188C (en) Device for sharpening scissors
AT120636B (en) Grinding device for razor blades.
AT122227B (en) Make-up distributor with wiper.
AT135305B (en) Pull spring.
AT103975B (en) Device for sharpening scissors, scrapers, etc. like
DE386796C (en) Device for keeping blouse collars taut
DE590820C (en) Scoring device for glass objects
DE826250C (en) Scythe and knife sharpeners
AT130880B (en) Sharpening device for safety razor blades.
DE604069C (en) Rotating brush with one or more brush or roller inserts
AT148450B (en) Device for sharpening scissors.
DE483554C (en) Double-edged meat grinder knife
DE710783C (en) Engraving pen made of hard material
AT144330B (en) Hat clip to be attached to the back of an armchair or bench.
CH206251A (en) Puller for razor blades.
AT47347B (en) Corset or Straight holder or the like.
DE807671C (en) Device for sharpening razor blades
AT108398B (en) Colander.
AT137997B (en) Sharpening or smoothing device for razor blades.
AT80365B (en) Apparatus for sharpening chalk or the like Apparatus for sharpening chalk or the like