Crown Glass Window Panes

These circular pieces of glass were then cut and are identifiable by the circular striations in the panes of glass.

Crown glass window panes.

A glass smith using a hollow tube would blow liquid glass which made a hollow globe called a crown. Ideal as a protective surface over shelves and tabletops. Crown glass disks had uneven surfaces and varied thickness. This process was known as crown glass and it resulted in glass that was heavily distorted and very small in size.

Windows were small in size and few in number due to the cost of glass which mostly had to be imported and in northern climates for greater protection against the harsh winter weather. Glass became an industrialized product after the civil war. The process of making crown glass window panes was perfected by french glassmakers in the 1320s notably around rouen and was a trade secret. This was attached to a rod which was then spun to make thin sheets of glass which were cut into window panes.

This is very early glass most common before 1800. The earliest type of glass in america was called crown or table glass. This glass was cut into panes and graded based on clarity and overall quality. Crown glass is one of many types of hand blown glass.

The best window panes were cut from the outer edges of the glass disk where the glass was the thinnest. Crown glass was used in europe starting in the mid 1300s. Broad sheet blown plate polished plate and cylinder blown sheet. However historical glass its often less clear than it was in its original state.

Diamond shaped windows are a common characteristic of historical buildings in areas where crown glass was produced. These methods of manufacture lasted at least until the end of the 19th century. Shatter resistant and non yellowing. As a result crown glass was not made in london until 1678.

Crown glass is a silicate and potassium oxide glass that is extremely clear. Historic window restoration repair new window manufacturing including tempered and insulated glass units leaded glass panels antique furniture restoration cabinet glazing period lighting fixtures old picture and print framing antique mirror manufacturing and many more. Because the glass was spun in a circular motion the waves were more rounded. Use indoor or outdoor.

The center of the disk of crown. Inspired by centuries old window glass kog creates a line of restoration reproduction and new build bullseye glass panes to compliment finely crafted millwork in doors transoms cabinetry and windows. A bullseye is a mouth blown rondel intri. The best quality however was crown glass which was blown into a disk and then cut into panes.

Project boards for temporary outdoor signage school projects hobbies crafts and flooring protection.