DE265216C - - Google Patents
Info
- Publication number
- DE265216C DE265216C DENDAT265216D DE265216DA DE265216C DE 265216 C DE265216 C DE 265216C DE NDAT265216 D DENDAT265216 D DE NDAT265216D DE 265216D A DE265216D A DE 265216DA DE 265216 C DE265216 C DE 265216C
- Authority
- DE
- Germany
- Prior art keywords
- tube
- iron
- bar
- glass
- grating
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 230000001681 protective Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/01—Grilles fixed to walls, doors, or windows; Grilles moving with doors or windows; Walls formed as grilles, e.g. claustra
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Sewage (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft einen Stab für Schutzgitter zur Sicherung von Fenstern und Türen gegen Einbruch. Das zur Herstellung solcher Gitter allgemein verwendete Rund- oder Vierkanteisen kann ohne auffälliges Geräusch zersägt werden. Zweck der Erfindung ist, diesen Übelstand zu beseitigen.The invention relates to a rod for protective grating for securing windows and doors against burglary. The round or square iron generally used to manufacture such grids can be sawed without a noticeable noise. The purpose of the invention is to remedy this drawback.
Fig. ι stellt einen Längsschnitt und Fig. 2 einen Querschnitt durch einen Gitterstab dar.Fig. 1 shows a longitudinal section and Fig. 2 shows a cross section through a lattice bar.
Der Stab besteht aus einem nahtlos gezogenen Rohr aus Stahl oder Eisen, aus dem das Gitter so hergestellt wird, daß bei Verwendung von Längs- und Quersprossen die Kreuzungstellen miteinander verschweißt werden. In das Rohr« wird ein Eisenstab δ eingezogen, dessen Durchmesser etwa ein Drittel des Rohrdurchmessers beträgt. In den zwischen der Innenwand des Rohres α und dem Eisenstab b entstehenden Raum wird ein zusammengerollter Zylinder c aus Drahtgeflecht eingeschoben und der Zwischenraum sodann mit flüssigem Glas ausgegossen, so daß dieses nach dem Erkalten das Glasrohr d bildet, in welches der Drahtzylinder c fest eingegossen ist.The rod consists of a seamlessly drawn tube made of steel or iron, from which the grid is made in such a way that the crossing points are welded together when using longitudinal and transverse rungs. An iron rod δ, the diameter of which is about a third of the pipe diameter, is drawn into the pipe. A rolled-up cylinder c made of wire mesh is inserted into the space created between the inner wall of the tube α and the iron rod b and the space is then filled with liquid glass, so that after cooling it forms the glass tube d into which the wire cylinder c is firmly cast .
Wenn nun bei einem Einbruch das Außenrohr α durchschnitten wird, so wird das Glasrohr d den gebräuchlichen Schneidwerkzeugen infolge seiner Härte widerstehen. Es wäre deshalb nötig, ein größeres Stück desselben freizulegen, um es dann zu zertrümmern, was mit einem starken Geräusch verbunden wäre, zumal ja die Zerstörung infolge des eingegossenen Drahtzylinders c wesentlich erschwert und aus diesem Grunde auch das Zerschneiden das Glasrohres Schwierigkeiten machen würde.If the outer tube α is cut through in the event of a break-in, the glass tube d will withstand the usual cutting tools due to its hardness. It would therefore be necessary to expose a larger piece of the same in order to then smash it, which would be associated with a loud noise, especially since the destruction due to the cast wire cylinder c is made much more difficult and for this reason cutting the glass tube would also make it difficult.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE265216C true DE265216C (en) |
Family
ID=522468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT265216D Active DE265216C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE265216C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE915542C (en) * | 1952-09-23 | 1954-07-22 | Eduard Heister | Grille secured against forcible opening |
EP0073934A1 (en) * | 1981-08-28 | 1983-03-16 | Bauer Kassenfabrik Ag | Grate bar capable of triggering an alarm |
-
0
- DE DENDAT265216D patent/DE265216C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE915542C (en) * | 1952-09-23 | 1954-07-22 | Eduard Heister | Grille secured against forcible opening |
EP0073934A1 (en) * | 1981-08-28 | 1983-03-16 | Bauer Kassenfabrik Ag | Grate bar capable of triggering an alarm |
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