AT88846B

AT88846B - Heating elements for electric cooking and ironing devices.

Info

Publication number: AT88846B
Authority: AT
Original assignee: Franz Buresch; Bruenner Gasapp Fabrik U Eisen
Priority date: 1921-01-19
Filing date: 1921-01-19
Publication date: 1922-06-26

Description

  

   <Desc/Clms Page number 1> 
 



  Heizkörper für elektrische   Koch-und Bugetvorrichtungen.   



   Um zu verhüten, dass bei Heizkörpern für elektrische Koch-und Bügelvorrichtungen ein grosser Teil der von ihnen erzeugten Wärme an der der Nutzseite abgewendeten Fläche als Strahlungswärme verloren gehe, wird die Bettungsmasse der Heizdrähte derart gestaltet, dass die Flächen, welche die Wärme an die Nutzplatte abgeben, grösser sind als jene, welche die Wärme auf die effektlosen   Umfassungskörper   überleitet ;

   zu diesem Zwecke wird, wie die Zeichnung, welche einen Heizkörper für Plätteisen im schematischen Querschnitt zeigt, 
 EMI1.1 
   hohlkegelfölmigen Ausnehmungen O versehcn.   Die Bettungsmasse m steht mit der Nutzplatte n nur an ihren ebenen Flächenelementen in direkt leitender Verbindung, während der Wärme- übergang von den Flächen der Rillen 0 oder Hohlkegel 0'auf die Nutzplatte n im Wege der Strahlung stattfindet. 

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



   <Desc / Clms Page number 1>
 



  Radiators for electric cooking and cooking appliances.



   In order to prevent a large part of the heat generated by radiators for electric cooking and ironing devices from being lost as radiant heat on the surface facing away from the useful side, the bedding mass of the heating wires is designed in such a way that the surfaces which the heat on the useful plate give off, are greater than that which the heat transfers to the ineffective surrounding bodies;

   for this purpose, like the drawing, which shows a heating element for flat irons in schematic cross section,
 EMI1.1
   Hollow conical recesses O versehcn. The bedding compound m is only in direct conductive connection with the useful plate n at its flat surface elements, while the heat transfer from the surfaces of the grooves 0 or hollow cones 0 'to the useful plate n takes place by means of radiation.

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

Claims

So that the heat rays emanating from the grooves or conical surfaces 0, 0 'produce the most favorable heating effect possible, according to the invention, according to the invention, the apex angle s of the grooves or the conical surfaces is selected at least 900, so that the heat rays emanating perpendicularly from a groove surface onto the useful plates n and do not hit the opposite groove surface, PATENT CLAIM:

Electric heating element, especially for electric cooking and ironing devices, in which grooves or conical recesses are arranged in the bedding compound between the heating wires, from the boundary surfaces of which the heat is transferred by radiation to the usable plate, characterized in that the apex angles of the bedding compound indicated in the bedding compound thin wedge-shaped grooves or conical recesses are equal to or larger than () o. EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.