DE894678C - Winding form for the production of hollow bodies from asbestos cement u. like - Google Patents
Winding form for the production of hollow bodies from asbestos cement u. likeInfo
- Publication number
- DE894678C DE894678C DEA10122D DEA0010122D DE894678C DE 894678 C DE894678 C DE 894678C DE A10122 D DEA10122 D DE A10122D DE A0010122 D DEA0010122 D DE A0010122D DE 894678 C DE894678 C DE 894678C
- Authority
- DE
- Germany
- Prior art keywords
- winding form
- winding
- production
- hollow bodies
- glass
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/42—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
- B28B21/48—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces by wrapping, e.g. winding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Glass Compositions (AREA)
Description
Um aus. Asbestzement, Glasfaserzement und ähnlichen Mischungen aus Zement mit faserigen Stoffen Hohlkörper, wie Rohre, Hülsen, Kisten, Funkenkammern u. ä., herzustellen, werden Platten aus diesen Werkstoffen in teigigem Zustand entsprechend der ebenen. Abwicklung der Hohlkörper zugeschnitten, in diesem Zustand auf eine entsprechende Form ,gewickelt, an der zugeschräften Stoßnaht durch Klopfen od. dgl. zusammengefügt und zum Abbinden längere Zeit an der Luft getrocknet. Diese Wickelformen wunden bisher aus Metall, dns@bes,ondere Stahlblech, hergestellt. Da infolge der verhältnismäßig langen Abbindezeit bei laufender Fertigung großer Stückzahlen eine entsprechend große Anzahl solcher Formen benötigt wird, so entsteht ein entsprechend .großer Metallbedarf. DiieStahlformen haben außerdem den Nachteil, daß sie bei der dauernden Berührung mit der Feuchtigkeit leicht Rost ansetzen, lzorrodieren u. dgl.To get out. Asbestos cement, fiberglass cement and similar mixtures Cement with fibrous materials hollow bodies, such as pipes, sleeves, boxes, spark chambers and the like, panels made of these materials are accordingly in a doughy state of the levels. Development of the hollow body cut, in this state on one Corresponding shape, wrapped, on the closed butt joint by knocking or the like. put together and air dried for a long time to set. These wrap shapes wounds previously made of metal, dns @ bes, ondere sheet steel. As a result of the a relatively long setting time during ongoing production of large numbers A correspondingly large number of such forms is required .Large metal demand. The steel molds also have the disadvantage that they are in the permanent contact with moisture easily rust, corrosion, etc.
Nach der Erfindung werden die Wickelformen zur Vermeidung dieser Nachteile aus Glas hergestellt, und, zwar je nach Größe und Form der zu wickelnden Hohlkörper aus einem Stück Vollglas oder bei komplizierteren Formen aus mehreren Vollälasteilen, die gegebenenfalls miteinander verkittet sein können. Für kleinere Hohlkörper können auch Hofhlglasformen verwendet werden.According to the invention, the winding forms are used to avoid these disadvantages made of glass, depending on the size and shape of the hollow body to be wound from one piece of full glass or, in the case of more complex shapes, from several full glass parts, which can optionally be cemented to one another. For smaller hollow bodies you can Hofhlglasforms can also be used.
Ein. Ausführungsbeispiel zeigt die Abbildung eines Wickelkörpers zum Wickeln einer Funkenkammer für einen elektrischen Schalter in drei aufeinander senkrechten Ansichten. In bekannter Weise wird eine Platte aus Asbest- oder Gl.asfaserzement od. dgl. in teigigem Zustand so zugeschnitten, wie die ebene - Abwicklung der Kammerwand es vorschreibt. An der Nahte werden die beiden Stoßkanten zugeschräft und nach dem Aufwickeln auf die Wickelform a durch Klopfen oder Druck miteinander verbunden. Erfindungsgemäß besteht die Wickelform ca aus einem Stück Vollglas, dessenOberfläche je nach denAnforderungen, die an die Glätte der Innenwände des Hohlkörpers gestellt werden, mehr oder weniger fein geschliffen sein kann. Zur Handhabung können zwei Kerben c eingeschliffen sein. Nach,dem Wickeln werden in bekannter Weise die durch die Linien d gezeichneten Teile weggeschnitten, um der Funkenkammer b noch im teigigen Zustand die endgültige Form zu geben. Da das Gewicht der Vollglasformen gegenüber Blechformen verhältnismäßig groß ist, kann man .den Anbeitsgan.g des. Klopfens der Naht e ganz oder zum Teil ersparen, indem man nach dem Zusammenfügen der Naht die Kammer so legt, daß die Form durch ihr Gewicht die Naht zusammendrückt.A. Embodiment shows the illustration of a winding body for Winding a spark chamber for an electrical switch in three mutually perpendicular Views. In a known way, a plate made of asbestos or glass fiber cement od. The like. In a doughy state cut as the plane - development of the chamber wall it dictates. At the seam, the two joint edges are bevelled and after the Winding on the winding form a connected to one another by tapping or pressure. According to the invention, the winding form consists of a piece of solid glass, the surface of which depending on the requirements placed on the smoothness of the inner walls of the hollow body can be more or less finely honed. You can use two Notches c be ground. After the winding are done in a known manner the lines d cut away parts to keep the spark chamber b still in the dough State to give the final shape. As opposed to the weight of the full glass molds Sheet metal forms is relatively large, you can You can save some or all of the seams by removing the Chamber so that the weight of the mold compresses the seam.
Dne Glasformen, nach der Erfindung sind nicht nur für solche Werkstoffe geeignet, die bei Raumtemperatur abbinden, sondern, auch für solche, die höheren Temperaturen ausgesetzt werden, sofern die Enveichungstemperatur des Glases nicht erreicht wird. Für manche Zwecke empfiehlt es sich, die Oberfläche der Glasformen zu polieren, um ein Anhaften nach dem Abbinden zu vermeiden.Dne glass molds according to the invention are not only for such materials suitable that set at room temperature, but also for those that set higher Temperatures are exposed, provided that the enveichung temperature of the glass is not is achieved. For some purposes it is advisable to use the surface of the glass molds to polish to avoid sticking after setting.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA10122D DE894678C (en) | 1944-04-22 | 1944-04-22 | Winding form for the production of hollow bodies from asbestos cement u. like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA10122D DE894678C (en) | 1944-04-22 | 1944-04-22 | Winding form for the production of hollow bodies from asbestos cement u. like |
Publications (1)
Publication Number | Publication Date |
---|---|
DE894678C true DE894678C (en) | 1953-10-26 |
Family
ID=6921959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA10122D Expired DE894678C (en) | 1944-04-22 | 1944-04-22 | Winding form for the production of hollow bodies from asbestos cement u. like |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE894678C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19608786A1 (en) * | 1996-03-07 | 1997-09-18 | Heinz Von Doellen | Building opening forming-core production method |
-
1944
- 1944-04-22 DE DEA10122D patent/DE894678C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19608786A1 (en) * | 1996-03-07 | 1997-09-18 | Heinz Von Doellen | Building opening forming-core production method |
DE19608786C2 (en) * | 1996-03-07 | 2000-11-16 | Heinz Von Doellen | Process for the production of hollow profile molded parts for the formation of passages in masonry and in floors or ceilings of buildings |
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