DE478402C - Glass pane for electric pane lights - Google Patents

Glass pane for electric pane lights

Info

Publication number
DE478402C
DE478402C DEB137359D DEB0137359D DE478402C DE 478402 C DE478402 C DE 478402C DE B137359 D DEB137359 D DE B137359D DE B0137359 D DEB0137359 D DE B0137359D DE 478402 C DE478402 C DE 478402C
Authority
DE
Germany
Prior art keywords
pane
lights
electric
glass
glass pane
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
Application number
DEB137359D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brunnquell & Co
Original Assignee
Brunnquell & Co
Publication date
Priority to DEB137359D priority Critical patent/DE478402C/en
Application granted granted Critical
Publication of DE478402C publication Critical patent/DE478402C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

Glasscheibe für elektrische Scheibenbeleuchtungskörper Glasscheiben für sogenannte Scheibenbeleuchtungskörper mit elektrischen Lampen größerer Lichtstärke haben den Nachteil, daß bei längerem Gebrauch zwischen der Außen-und Innenkante der ringförmigen Glasscheibe, von welcher die Glühlampe eingefaßt ist, ungleichmäßige und daher das gute Aussehen beeinträchtigende Risse auftreten. Diese rühren. .offenbar von inneren Spannungen im Glasmaterial her, die durch die erhebliche Wärmeausstrahlung der meist zentral angeordneten Glühlampe einerseits und die oft starke Abkühlung durch die Luft an den außenliegenden Flächen anderseits verursacht werden. Erfindungsgemäß wird dieser übelstand dadurch beseitigt, daß die Entstehung der Spannungen, die bisher zu den ungleichmäßigen Rissen Veranlassung gaben, von vornherein bei der Herstellung der Scheibe durch Anbringung eines gleichmäßigen radialen Schnittes verhütet wird.Glass pane for electric pane lights. Glass panes for so-called window lights with electric lamps of greater light intensity have the disadvantage that with prolonged use between the outer and inner edge of the ring-shaped glass pane, by which the incandescent lamp is framed, uneven and hence appearance-impairing cracks occur. These stir. .apparently from internal tensions in the glass material caused by the considerable heat radiation the mostly centrally arranged incandescent lamp on the one hand and the often strong cooling caused on the other hand by the air on the outer surfaces. According to the invention this evil is eliminated by the emergence of the tensions which so far gave rise to the uneven cracks, right from the start Manufacture of the disc by making a uniform radial cut is prevented.

In Abb. i wird eine beispielsweise Aüsführungsform eines Scheibenbeleuchtungskörpers wiedergegeben. Darin stellt i die in Rede stehende ringförmige Glasscheibe und 2 die Glühlampe dar.In Fig. I, an exemplary embodiment of a panel lighting fixture is shown reproduced. Here i represents the ring-shaped pane of glass in question and 2 the light bulb.

Abb. 2, welche die Scheibe i ohne die übrigen Beleuchtungskörperbestandteile darstellt, zeigt einen gemäß der Erfindung im voraus angeordneten Dehnungsschnitt 3, welcher zur Verkleidung noch einen Kerbschliff q. aufweist. Letzterer ist der Kosten wegen nur für hochwertige künstlerische Objekte angezeigt.Fig. 2, which shows the disc i without the other lighting fixture components Figure 3 shows a prearranged expansion section according to the invention 3, which is also notched q. having. The latter is the Cost due to only shown for high quality artistic objects.

Claims (1)

PATENTANSPRÜCHE: i. Glasscheibe für elektrische Scheibenbeleuchtungskörper, gekennzeichnet duazh einen radialen Dehnungsschnitt (3)-2. Glasscheibe nach Anspruch i, dadurch gekennzeichnet, daß die Ränder des Dehnungsschnittes (3) der Scheibe (i) mit Schliffen (q.) versehen sind. PATENT CLAIMS: i. Glass pane for electric pane lights, marked duazh a radial expansion section (3) -2. Glass pane according to claim i, characterized in that the edges of the expansion cut (3) of the pane (i) are provided with ground cuts (q.).
DEB137359D Glass pane for electric pane lights Expired DE478402C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB137359D DE478402C (en) Glass pane for electric pane lights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB137359D DE478402C (en) Glass pane for electric pane lights

Publications (1)

Publication Number Publication Date
DE478402C true DE478402C (en) 1929-06-24

Family

ID=6999186

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB137359D Expired DE478402C (en) Glass pane for electric pane lights

Country Status (1)

Country Link
DE (1) DE478402C (en)

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