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Glass Blowing, Glass Types, & Making Stained Glass

Blowing Sheets of Glass

Back to Glass & Glass Blowing

Gathering molten glass on the blowpipe. These images of the making of LambertsGlas® appear courtesy Glasshütte Lamberts, Germany

Shaping the gather (and cooling the blowpipe).

Blowing and shaping the gather into a larger sphere.

Reheating the ever-cooling gather to maintain workability.

Elongation into a cylindrical shape by blowing and swinging.

Further shaping of cylinder and addition of striations (straw marks).

With blowpipe and bottom removed, open-ended cylinders are placed on conveyor into annealing oven.

Slowly conveyed through annealing oven, the cylinders gradually cool to room temperature.

Now cool, annealed cylinders await opening into flat sheets.

Before reheating, cylinders are split from top to bottom with a glass cutter.

Worker guides the cylinder as it begins to soften in the flattening furnace.

Gravity continues its work on the "cylinder".

No longer a cylinder.

After a final smoothing, the cylinder has been transformed into a flat sheet.

  • Home
  • About ASG
    • Jeff Smith & Architectural Stained Glass, Inc.
    • Testimonials
    • Resumé
    • Artist’s Statement
    • Contact
  • Stained Glass Projects
    • Places of Worship
    • Public & Commercial
    • Residential
    • Autonomous
    • Work in Progress
    • Close, But No…
  • Resources
    • Anticipating Stained Glass
    • Glass Blowing, Glass Types, & Making Stained Glass
    • Typical Installation Detail
    • A History of Stained Glass
    • Pricing, Contracts & Warranties

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