AT67275B - Mold core for hollow bodies made of artificial stone with a collapsible upper part. - Google Patents

Mold core for hollow bodies made of artificial stone with a collapsible upper part.

Info

Publication number
AT67275B
AT67275B AT67275DA AT67275B AT 67275 B AT67275 B AT 67275B AT 67275D A AT67275D A AT 67275DA AT 67275 B AT67275 B AT 67275B
Authority
AT
Austria
Prior art keywords
mold core
hollow bodies
artificial stone
bodies made
collapsible upper
Prior art date
Application number
Other languages
German (de)
Inventor
Otto Silbermann
Fritz Emmrich
Original Assignee
Otto Silbermann
Fritz Emmrich
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 Otto Silbermann, Fritz Emmrich filed Critical Otto Silbermann
Application granted granted Critical
Publication of AT67275B publication Critical patent/AT67275B/en

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  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Formkern für Hohlkörper aus Kunststeinmasse mit zusammenklappbarem Oberteil. 



     Formkerne zur Herstellung von Kanalisationsrohren   aus Zement, welche zum Zwecke des leichten Entfernens aus dem geformten Hohlkörper zusammengeklappt werden, sind bekannt. 



  Es ist bereits vorgeschlagen worden, den Formkern aus zwei getrennten Paaren zusammenklappbarer Teile, und zwar einem Ober-und einem Unterteil zu bilden, von denen ersterer nach   Erhärten der Masse   auf den zusammengeklappten Unterteil dachförmig aufgesetzt wird. Das Entfernen solcher auf die genannte Art abgelöster Kerne in dem geformten Rohrkörper ist aber mit dem Übelstand verbunden, dass dabei der noch nicht vollkommen abgebundene Rohrkörper   beschädigt wird.   



   Gemäss der vorliegenden Erfindung ist die Anordnung der Kernteile so getroffen, dass der obere Kernteil nach dem Zusammenziehen in den   Unterteil hineinsinkt   und sich auf dort befindliche Rollen oder dgl. lagert, auf denen er leicht herausgezogen werden kann. 



   In der Zeichnung ist eine beispielsweise   Ausführungsform   des Erfindungsgegenstandes dargestellt, und zwar zeigt Fig. 1 einen Querschnitt durch den Formkern, Fig. 2 eine Draufsicht auf den Unterteil und Fig. 3 eine Unteransicht des Oberteiles des Kernes. 



   Der Kern besteht aus einem Unterteil M und einem Oberteil n. Der Unterteil bildet ein Ganzes und besitzt nahe dem Rande nach innen zu   schräg   abfallende   Längshienf'n q. Quer   über den Unterteil sind Metallrollen p zur Aufnahme des Oberteiles ie angeordnet. Dieser besteht aus zwei   Hälfren,   welche durch ein Scharnier n klappbar verbunden sind. Nahe dem Rande sind 
 EMI1.1 
 Formung   beendet, dann wird die Spindel @ gedrcht und verschiebt dadurch die Stange in ihrer   Längsrichtung. Die Stange nimmt durch die Schellen a den Träger t mit und zieht so die Scheren-   teile   ein. Dadurch klappen die beiden Kernhälften a nach innen ein und   rutschen nun über die   
 EMI1.2 
 

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



   <Desc / Clms Page number 1>
 



  Mold core for hollow bodies made of artificial stone with a collapsible upper part.



     Mold cores for the production of sewer pipes from cement, which are folded up for the purpose of easy removal from the molded hollow body, are known.



  It has already been proposed to form the mold core from two separate pairs of collapsible parts, namely an upper part and a lower part, of which the former is placed on the folded lower part in a roof shape after the mass has hardened. However, the removal of such cores in the shaped tubular body, which have been detached in the above-mentioned manner, is associated with the disadvantage that the tubular body which has not yet been completely tied is damaged.



   According to the present invention, the arrangement of the core parts is made such that the upper core part sinks into the lower part after being contracted and rests on rollers or the like located there, on which it can be easily pulled out.



   The drawing shows an exemplary embodiment of the subject matter of the invention, namely FIG. 1 shows a cross section through the mold core, FIG. 2 shows a top view of the lower part and FIG. 3 shows a bottom view of the upper part of the core.



   The core consists of a lower part M and an upper part n. The lower part forms a whole and has, near the edge, inwardly sloping longitudinal rails q. Metal rollers p for receiving the upper part ie are arranged across the lower part. This consists of two halves which are hingedly connected by a hinge n. Are near the edge
 EMI1.1
 Forming finished, then the spindle @ is turned and thereby moves the rod in its longitudinal direction. The rod takes the carrier t with it through the clamps a and thus pulls in the scissor parts. This causes the two core halves a to fold inwards and slide over the
 EMI1.2
 

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

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT67275D 1912-09-18 1912-09-18 Mold core for hollow bodies made of artificial stone with a collapsible upper part. AT67275B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT67275T 1912-09-18

Publications (1)

Publication Number Publication Date
AT67275B true AT67275B (en) 1914-12-28

Family

ID=3589167

Family Applications (1)

Application Number Title Priority Date Filing Date
AT67275D AT67275B (en) 1912-09-18 1912-09-18 Mold core for hollow bodies made of artificial stone with a collapsible upper part.

Country Status (1)

Country Link
AT (1) AT67275B (en)

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