US1786892A - Method and apparatus for the manufacture of sheet glass - Google Patents
Method and apparatus for the manufacture of sheet glass Download PDFInfo
- Publication number
- US1786892A US1786892A US724255A US72425524A US1786892A US 1786892 A US1786892 A US 1786892A US 724255 A US724255 A US 724255A US 72425524 A US72425524 A US 72425524A US 1786892 A US1786892 A US 1786892A
- Authority
- US
- United States
- Prior art keywords
- glass
- sheet
- sheets
- sheet glass
- manufacture
- 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 - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B15/00—Drawing glass upwardly from the melt
- C03B15/02—Drawing glass sheets
- C03B15/04—Drawing glass sheets from the free surface of the melt
Definitions
- Figure 1 is a diagrammatic partial vertical section showing one form of apparatus for carrying out the invention.
- Flgure 2 is a view at right angles to Figure 1, showing another form.
- My invention relates to the manufacture of sheet glass, and its object is to increase the production and lower the cost of drawing glass in continuous sheet form over a bending roller.
- the invention consists 1n continuously drawing a plurality of sheets from the same general bath of molten lass, each sheet rising in a general vertical 'rection and thence being bent intov a eneral horizontal direction over a bending rol or device, thus giving continuous multiple draw-
- 2 represents the end portion of a tank furnace, which extends to the ri ht of the figure.
- 3 designate bendin ro ls, located in different vertical and certainal planes, and over which the continuous sheets are bent, thence extending horizontally and preferably passin through a flattening station and an anne ingeven.
- These sheets are preferably drawn with thickened edge portions, which thickened edge portions are preferably engaged just above the meniscus by friction brake devices, preferably in the form 0f stub rollers, engaging these thickened edges from opposite sides, as indicated at 4.
- the 'numeral 8 designates water coolers arranged between the two sheets and at each side thereof, to impart the desired set or plasticity.
- the horizontal paths of the two continuous sheets are preferably sepa-rated by a refractory roof 9, and heating and coohng means may be supplied as desired inany parts of the draw.'
- each tank has been provided with one drawing extension or drawing tank, and one continuous sheethas been drawn therefrom, but by drawing sheets in different directions or stepping them vertically, one over the other, a plurality of sheets may be drawn from the same general bath system.
- a horizontal leer In an apparatus for simultaneously producing a plurality of sheets of glass, a horizontal leer, a series of conveyors for carrying the separate sheets in parallel horizontal planes through the leer, and means positioned between each pair of conveyors for protecting the lower sheets from falling material 2.
- the steps consistin of simultaneously grawm a plurality o sheets upwardl from a ath of glass, then bending the s eets and drawing them in different paths in a generally horizontal direction, one above the other, in thel same heated leer structure, and protecting the lower sheet from falling material.
- means for containin a mass ofmolten glass means for skimmmg the molten glass Including means for drawing a sheet from the surface thereof, and means for drawing a commercial sheet from the glass that has been skimmed.
Description
Dec. 30, 1930, c. P. BYRNES METHOD AND APPARATUS FOR THE MANUFACTURE OF SHEET GLASS Original Filed March 2. 1920 c. fg @7444@ Patented Dec. 30, 1930 UNITED STATES PATENT OFFICE CLARENCE P. BYBNES,'OII SEWICKLEY, PENNSYLVANIA, ASSIGNOB T0 WINDOW GLASS COIPANY, QI' PITTSBURGH, PENNSYLVANIA, AGOBPOBATION 0l' NEW JERSEY IETHUD ANI) APPARATUS FOB THE HANUFACTUBE v0F SHEET GLASS Original application nled Harsh 2, 1920, Serial No. 382,844. Divided and this applicatiomnled July 5,
1924, Serial No. 724,255. Y
Figure 1 is a diagrammatic partial vertical section showing one form of apparatus for carrying out the invention; and
My invention relates to the manufacture of sheet glass, and its object is to increase the production and lower the cost of drawing glass in continuous sheet form over a bending roller. To that end, the invention consists 1n continuously drawing a plurality of sheets from the same general bath of molten lass, each sheet rising in a general vertical 'rection and thence being bent intov a eneral horizontal direction over a bending rol or device, thus giving continuous multiple draw- In the drawings, referring'to the form of Figure l, 2 represents the end portion of a tank furnace, which extends to the ri ht of the figure. 3, 3 designate bendin ro ls, located in different vertical and orizontal planes, and over which the continuous sheets are bent, thence extending horizontally and preferably passin through a flattening station and an anne ingeven. These sheets are preferably drawn with thickened edge portions, which thickened edge portions are preferably engaged just above the meniscus by friction brake devices, preferably in the form 0f stub rollers, engaging these thickened edges from opposite sides, as indicated at 4.
vThe amount of friction or drag exerted by these rollers may be adjusted in 'any suitable manner.
After passing the bending roller, the'thickened edges are engaged by the end collars. of up er and lower rol ers 5, 5, which are prefera ly geared together outside of the enclosing tunnel f6, thereby im arting a drawing action or pull to the continuous sheet, 7 1ndicates the heat supplied, which is directed upon the.continuous sheet after passing the bending roll.
The 'numeral 8 designates water coolers arranged between the two sheets and at each side thereof, to impart the desired set or plasticity. The horizontal paths of the two continuous sheets are preferably sepa-rated by a refractory roof 9, and heating and coohng means may be supplied as desired inany parts of the draw.'
In figure 2, show another form in which the section of the tank extension is at right angles to the first view, the sheets being drawn horizontally in opposite directions at general right angles to the length of the tank.` In this form, the horizontal paths of the continuous sheets, after bendin -may be in the same ,horizontal plane, an a refractory artition wall 9a ma extend between the ben ing rollers, if deslred. Similar parts are marked with similar numerals in both views, the letter a being added to similar parts in 'the second view. rIhe bending rolls may be cooled bfy air or water, or otherwise, as desired, and i desired, hot gases, steam or other fluids may be forced through perforations in the roll to keep the sheet further from its surface.
By such system, the amount of glass produced by a tank may be greatly increased, depending on the number of continuous sheets drawn simultaneously. Heretofore, each tank has been provided with one drawing extension or drawing tank, and one continuous sheethas been drawn therefrom, but by drawing sheets in different directions or stepping them vertically, one over the other, a plurality of sheets may be drawn from the same general bath system. p
The advantages of the invention will be obvious to those skilled in the art. Heretofore, only one drawing apparatus of this type has been employed in connection with a tank furnace, on account of the diiculties connected with multiple drawin where thel glass is drawn first in a vertical 'rection, thence in a generally horizontal direction.` By my improvement, the output is greatly increased and the cost corresponding y reduced.
This application is a ivision of my copnding application, Serial No. 362,844, led
I claim:
1. In an apparatus for simultaneously producing a plurality of sheets of glass, a horizontal leer, a series of conveyors for carrying the separate sheets in parallel horizontal planes through the leer, and means positioned between each pair of conveyors for protecting the lower sheets from falling material 2. In the drawing of sheet lassy the steps consistin of simultaneously grawm a plurality o sheets upwardl from a ath of glass, then bending the s eets and drawing them in different paths in a generally horizontal direction, one above the other, in thel same heated leer structure, and protecting the lower sheet from falling material.
3. The process of producing sheet glass, consisting in providing a mass of molten lass skimming the molten lass by draw# mg the surface therefrom in s eet form, and then drawing a sheet from the skimmed glass.
4. In sheet glass apparatus, means for containin a mass ofmolten glass, means for skimmmg the molten glass Including means for drawing a sheet from the surface thereof, and means for drawing a commercial sheet from the glass that has been skimmed.
In testimony whereof I have hereunto set my hand.
CLARENCE 1. BYRNES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US724255A US1786892A (en) | 1920-03-02 | 1924-07-05 | Method and apparatus for the manufacture of sheet glass |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36284420A | 1920-03-02 | 1920-03-02 | |
US724255A US1786892A (en) | 1920-03-02 | 1924-07-05 | Method and apparatus for the manufacture of sheet glass |
Publications (1)
Publication Number | Publication Date |
---|---|
US1786892A true US1786892A (en) | 1930-12-30 |
Family
ID=27001815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US724255A Expired - Lifetime US1786892A (en) | 1920-03-02 | 1924-07-05 | Method and apparatus for the manufacture of sheet glass |
Country Status (1)
Country | Link |
---|---|
US (1) | US1786892A (en) |
-
1924
- 1924-07-05 US US724255A patent/US1786892A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3509011A (en) | Manufacture of flat glass | |
US710357A (en) | Manufacture of window and plate glass. | |
US1610376A (en) | Process and apparatus for making glass | |
US3222154A (en) | Manufacture of flat glass | |
US1786892A (en) | Method and apparatus for the manufacture of sheet glass | |
US2968892A (en) | Manufacture of flat glass in continuous ribbon form | |
US3352657A (en) | Method of attenuating a ribbon of glass on a molten metal bath | |
US1548444A (en) | Manufacture of glassware | |
US1895547A (en) | Apparatus for annealing glass | |
US3241938A (en) | Manufacture of glass sheets | |
GB431668A (en) | Improvements in or relating to a method of manufacturing sheet glass | |
US1818152A (en) | Process and apparatus for forming sheet glass | |
US1816179A (en) | Process for drawing sheet glass | |
US3468653A (en) | Lateral confinement and flow-halting apparatus for manufacture of flat glass | |
US1576446A (en) | Drawing glass sheets | |
US3351446A (en) | Method and apparatus for vertically drawing glass from a molten metal bath | |
US1697104A (en) | Drawing sheet glass | |
US1836356A (en) | Sheet glass forming machine | |
US1598730A (en) | Process and apparatus for making sheet glass | |
US2598893A (en) | Apparatus for producing flat glass | |
US1805218A (en) | Temperature control means for molten glass | |
US3589886A (en) | Float glass apparatus with a radiation gate | |
US1595912A (en) | Method of annealing and cooling sheet glass | |
US1425218A (en) | Method and apparatus for drawing wire glass | |
US3336126A (en) | Apparatus for the continuous production of flat glass with dual feeding means |