FR538843A - Furnace for the production of tension-free lenses - Google Patents

Furnace for the production of tension-free lenses

Info

Publication number
FR538843A
FR538843A FR538843DA FR538843A FR 538843 A FR538843 A FR 538843A FR 538843D A FR538843D A FR 538843DA FR 538843 A FR538843 A FR 538843A
Authority
FR
France
Prior art keywords
furnace
tension
production
free lenses
lenses
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
Other languages
French (fr)
Inventor
Eugen Ulbricht
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR538843A publication Critical patent/FR538843A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
    • C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
    • C03B29/08—Glass sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
FR538843D 1919-10-27 1920-11-05 Furnace for the production of tension-free lenses Expired FR538843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE538843X 1919-10-27

Publications (1)

Publication Number Publication Date
FR538843A true FR538843A (en) 1922-06-15

Family

ID=6558315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR538843D Expired FR538843A (en) 1919-10-27 1920-11-05 Furnace for the production of tension-free lenses

Country Status (1)

Country Link
FR (1) FR538843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512922A2 (en) * 1991-05-10 1992-11-11 Saint-Gobain Vitrage International Continuously working furnace for heating glass plates to their bending- and/or tempering temperature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512922A2 (en) * 1991-05-10 1992-11-11 Saint-Gobain Vitrage International Continuously working furnace for heating glass plates to their bending- and/or tempering temperature
EP0512922A3 (en) * 1991-05-10 1993-09-08 Saint-Gobain Vitrage International Continuously working furnace for heating glass plates to their bending- and/or tempering temperature

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