DE656246C - Oven hotplates - Google Patents
Oven hotplatesInfo
- Publication number
- DE656246C DE656246C DEL90844D DEL0090844D DE656246C DE 656246 C DE656246 C DE 656246C DE L90844 D DEL90844 D DE L90844D DE L0090844 D DEL0090844 D DE L0090844D DE 656246 C DE656246 C DE 656246C
- Authority
- DE
- Germany
- Prior art keywords
- oven
- hotplates
- pressed
- cement
- tuff
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B3/00—Parts or accessories of ovens
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
Backofen-Herdplatten Die Erfindung betrifft eine Verbesserung und Vervollkommnung der Backofen-Herdplatte und des Verfahrens zu ihrer Herst,3lfung nach Patent 655 558. Das Hauptpatent hat eine Backofen-Herdplatte zum Gegenstand, die aus einer Mischung von zerkleinertem Naturtuffstein mit einem Bindemittel besteht und eine poröse Oberfläche aufweist, ferner ein Verfahren zur Herstellung dieser Herdplatten aus dem zerkleinerten Naturtuffstein, das so gestaltet ist, daß die Porosit *it des natürlichen Tuffsteines bei der Verarbeitung nicht zerstört wird, "vas bis dahin immer der Fall war, so .daß es nicht möglich war, die bekannten guten Eigenschaften des Tuffsteines für solche Backofen-Herdplatten in Kunstplatten auszunutzen.The invention relates to an improvement and Perfection of the oven hob and the process of making it according to patent 655 558. The main patent relates to an oven hob, which consists of a mixture of crushed natural tufa with a binding agent and has a porous surface, and a method of manufacturing the same Hobs made of the crushed natural tuff, which is designed so that the The porosity of the natural tuff stone is not destroyed during processing, "vas always been the case until then, so that it was not possible to use the well-known good To use properties of the tuff stone for such oven hotplates in synthetic plates.
Die Erfindung betrifft nun ein Verfahren, bei welchem die Bindung des zerkleinerten Naturtuffsteines in Kunstplatten unter Beibehaltung der Porosität dadurch erreicht wird, daß dem Tuffstein-Zement-Gemisch feinfaseriger Asbest zugesetzt wird. Die neue Herdplatte besteht demgemäß aus einer Mischung von zerkleinertem Naturtuffstein, Zement und feinfaserigem Asbest, die in der Weise zu Platten verarbeitet wird, daß die Bestandteile trocken gemischt, unter Druck zu Platten gepreßt und dann mit Wasser durchfeuchtet werden, worauf die Abbindung folgt. Die Asbestfasern dienen dazu, die an sich mürben Tuffsteinkörner mit dem Zement zu verbinden, ohne daß durch Anfeuchtung des Gemisches die vorhandenen Poren zugeschlämmt werden. Die Asbestfasermenge ist dabei abhängig von der Körnung des Tuffsteines und ist jeweils durch Versuche festzustellen. Beispiel 5 Teile Naturtuffstein in einer Körnung von i bis i o mm Durchmesser werden mit i Teil Zement unter entsprechendem Zusatz von feinfaserigem Asbest trocken gemischt und unter Druck zu Platten gepreßt. Die trocken gepreßte Platte wird alsdann angefeuchtet, wobei der Zement die Tuffsteinkörner bindet, ohne die Poren zuzuschlä mm.en. Darauf läßt man langsam abbinden.The invention now relates to a method in which the binding of the crushed natural tuff stone in synthetic panels while maintaining the porosity is achieved by adding fine-fiber asbestos to the tufa-cement mixture will. The new hotplate accordingly consists of a mixture of crushed Natural tufa, cement and fine-fiber asbestos, which are processed into panels in this way is that the ingredients are dry mixed, pressed under pressure to form plates and then moistened with water, followed by setting. The asbestos fibers serve to connect the crumbly tufa grains with the cement without that the existing pores are closed by moistening the mixture. the The amount of asbestos fiber depends on the grain size of the tuff and is in each case to be determined by experiments. Example 5 parts of natural tuff stone in a grain size of i to i o mm in diameter are mixed with i part of cement with the appropriate addition of Fine-fiber asbestos mixed dry and pressed into sheets under pressure. The dry The pressed slab is then moistened, with the cement removing the tufa grains binds without closing the pores. Then let it set slowly.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL90844D DE656246C (en) | 1936-07-24 | 1936-07-24 | Oven hotplates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL90844D DE656246C (en) | 1936-07-24 | 1936-07-24 | Oven hotplates |
Publications (1)
Publication Number | Publication Date |
---|---|
DE656246C true DE656246C (en) | 1938-02-01 |
Family
ID=7287142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL90844D Expired DE656246C (en) | 1936-07-24 | 1936-07-24 | Oven hotplates |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE656246C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011107724A1 (en) | 2011-05-19 | 2012-11-22 | Baco-Back Consulting | Baking oven device for preparing e.g. bread, has rectangular bricks made of tuff or tufa and arranged on supporting plate, and hot fluid pipes arranged under plate, where sides of plate are partially and laterally folded upwards |
-
1936
- 1936-07-24 DE DEL90844D patent/DE656246C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011107724A1 (en) | 2011-05-19 | 2012-11-22 | Baco-Back Consulting | Baking oven device for preparing e.g. bread, has rectangular bricks made of tuff or tufa and arranged on supporting plate, and hot fluid pipes arranged under plate, where sides of plate are partially and laterally folded upwards |
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