AT76534B - Pipe wrenches with exchangeable gripping surfaces in the form of toothed rollers. - Google Patents

Pipe wrenches with exchangeable gripping surfaces in the form of toothed rollers.

Info

Publication number
AT76534B
AT76534B AT76534DA AT76534B AT 76534 B AT76534 B AT 76534B AT 76534D A AT76534D A AT 76534DA AT 76534 B AT76534 B AT 76534B
Authority
AT
Austria
Prior art keywords
gripping surfaces
toothed rollers
pipe wrenches
rollers
toothed
Prior art date
Application number
Other languages
German (de)
Inventor
Friedrich Weissenborn
Alfred Daeter
Original Assignee
Friedrich Weissenborn
Alfred Daeter
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 Friedrich Weissenborn, Alfred Daeter filed Critical Friedrich Weissenborn
Application granted granted Critical
Publication of AT76534B publication Critical patent/AT76534B/en

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Rohrzangen mit auswechselbaren   Greifflächen in Form   von Zahnrolle. 



   Es ist bei Rohrzangen bekannt, die Abnutzung der Zangenschenkel durch Nachschärfung der Zahnung zu beseitigen und ein schärferes Anfassen des Rohres zu ermöglichen, dadurch, dass die Zahnung nach Abnutzung ausgewechselt wird. Man hat auch schon bei Rohrzangen Zahnrollen als Greifflächen benutzt
In der Zeichnung ist eine Zahnrollenanordnung einer neuen Ausführungsform dargestellt. 



   Der Zangenschenkel b wird in der Grösse der    Rollen n. bogenförmig ausgefräst.   



  Durch die Deckplatte R wird die Rolle seitlich festgehalten. Der Zapfen o der Rolle, der in einer Führung   S   geht, hält die Rolle in ihrer Lage. Im Kopf des Zangenschenkels   a   sitzen zwei ebenso gelagerte und geführte Rollen n. 



   Beim Zusammendrücken der   Zangenschenkel   und beim Fassen des Rohres drücken die Rollen n gleichzeitig gegen die Wandungen m der Ausfräsung, und es ist dadurch eine Umdrehung der Rollen ausgeschlossen. 

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



   <Desc / Clms Page number 1>
 



  Pipe wrenches with exchangeable gripping surfaces in the form of toothed rollers.



   It is known in pipe wrenches to remove the wear on the pliers legs by re-sharpening the teeth and to enable a sharper grip on the pipe by replacing the teeth after wear. Toothed rollers have also been used as gripping surfaces in pipe wrenches
In the drawing, a toothed roller arrangement of a new embodiment is shown.



   The pliers leg b is milled out in the shape of a curve in the size of the rollers n.



  The roll is held in place laterally by the cover plate R. The pin o of the role, which goes in a guide S, holds the role in its position. In the head of the pliers arm a, there are two equally supported and guided rollers n.



   When the pliers legs are pressed together and the pipe is grasped, the rollers n simultaneously press against the walls m of the cutout, and a rotation of the rollers is thereby excluded.

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

Claims (1)

PATENT-ANSPRUCH : Rohrzange mit auswechselbaren Greifflächen in Form von Zahnrollen, die beim EMI1.1 Zange gedrückt werden, dadurch gekennzeichnet, dass die Wandung, gegen welche die Zahnrollen gedrückt werden, je eine kreisbogenförmige Höhlung bildet, die sich dem Umfang der Zahnrolle anschmiegt. EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Pipe wrench with interchangeable gripping surfaces in the form of toothed rollers that are used in EMI1.1 Pliers are pressed, characterized in that the wall against which the toothed rollers are pressed, each forms a circular arc-shaped cavity, which clings to the circumference of the toothed roller. EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT76534D 1916-08-08 1917-11-08 Pipe wrenches with exchangeable gripping surfaces in the form of toothed rollers. AT76534B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE76534X 1916-08-08

Publications (1)

Publication Number Publication Date
AT76534B true AT76534B (en) 1919-05-26

Family

ID=5637473

Family Applications (1)

Application Number Title Priority Date Filing Date
AT76534D AT76534B (en) 1916-08-08 1917-11-08 Pipe wrenches with exchangeable gripping surfaces in the form of toothed rollers.

Country Status (1)

Country Link
AT (1) AT76534B (en)

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