What is wavy glass?
Glass produced between the 1700s and early 1900s have this antique “wavy glass” appearance. Another name for the old-looking glass is restoration window glass. The distortion and imperfections appear when looking at the glass from angles or looking straight through it.
What are the different types of wavy glass panes?
Old Wavy Glass Window Panes in America. 1 Crown Glass. Because the glass was spun in a circular motion, the "waves" were more rounded. The center piece had an end-knob imperfection (commonly ... 2 Cylinder Glass. 3 Machined Cylinder and Drawn Glass.
What type of glass was used in the 1800s?
Cylinder glass became the standard window glass panes in the 1800s. The glass still had many waves and bubble pockets. An early version of cylinder blown glass called broad sheet was generally not used for window glass. Machined Cylinder and Drawn Glass
Why do old glass windows have waves and ripples?
Therefore, the waves and ripples are the characteristics at the time the glass was made and not actually the regular flaws as we might think of. Old glass windows are normally wavy. They may have differences in ripples, but they were just the results of the ancient process of glass making that contributed to such characteristics.
Do they still make wavy glass?
AGW makes some great wavy glass in several different grades of waviness to help you match the glass to the age of your project. You can also order samples to find the options that works best for you. Hollander's manufactures glass that is similar in appearance to the wavy glass of old.
What is Wave glass?
Clear Wave Textured Glass is a clear, transparent glass with a gentle, rolling "wave". The soft texture mimics the surface of a lake or slow moving stream.
Why does some glass look wavy?
Contrary to the urban legend that glass is a slow-moving liquid, it's actually a highly resilient elastic solid, which means that it is completely stable. So those ripples, warps, and bull's eye indentations you see in really old pieces of glass “were created when the glass was created,” Cima says.
When did wavy glass stop being used?
Most of this glass appears in homes from 1870 to the 1930's. You can still see the wavy nature of this glass as there still striations as the glass was lifted. After industrialization, the process and methods for making glass didn't change. However now machines made the process more efficient.
What is rippled glass called?
Cylinder Glass It's also known as wavy glass for the bubbling, undulating imperfections found in the surface of the glass that distort images when you look through it.
How much is wavy glass worth?
NOTE: All windows with wavy glass are priced at $14.50 per square foot.
How old are wavy glass windows?
Properties of Wavy Glass Glass produced between the 1700s and early 1900s have this antique “wavy glass” appearance. Another name for the old-looking glass is restoration window glass. The distortion and imperfections appear when looking at the glass from angles or looking straight through it.
Is tempered glass wavy?
Tempered glass units are heat-treated in a horizontal oven and contain waves created when the units come in contact with the rollers during the heating process. This waviness, known in the industry as roller wave distortion, can be seen when looking at a reflected image on the glass from a distance.
What is Flemish glass?
FLEMISH. (Obscure visibility) Flemish glass has the look of hand blown glass without the seeds, bubbles, or the price tag. Light passes through while visibility is distorted – creating some privacy. This glass type offers an old world / slightly antique look.
Can you cut wavy glass?
That meant that I could not use it for that window again, but I saved it for a smaller project like this one. Both types of glass are straightforward to cut, but wavy glass can be slightly thicker.
What is textured glass called?
Patterned glassPatterned glass also called as textured glass, figured glass, and obscure glass is a decorative glass with patterns imprinted on one face of the glass. The light when passing through patterned glass diffuses due to the presence of patterns.
Why did old windows have circles?
Known as a bullseye, the thicker center area around the pontil mark was used for less expensive windows. To fill large window spaces with the best glass, many small diamond shapes were cut from the edge of the disk, and then some might be halved into triangles.
What is wavy glass?
Wavy glass is the "cool-looking" glass commonly found in older window panes, doors, and furniture built prior to the early 1900s. Generally, the further back in history you go, the wavier the glass is. As craftsmen improved their methods over time, the wave and distortion became less apparent. Early manufacture of glass involved single sheets ...
What process was used to make vertical glass?
The Fourcault process and Colburn processes for making vertical drawn glass in the second decade of the 1900s further mechanized glassmaking. This glass could be produced in wider sheets at cheaper costs. These advances led to even less distortion but by no means perfect glass.
What was the first window pane in the 1800s?
Cylinder glass became the standard window glass panes in the 1800s. The glass still had many waves and bubble pockets. An early version of cylinder blown glass called broad sheet was generally not used for window glass.
What is machined glass?
Machined Cylinder and Drawn Glass. This type of glass is still very widespread today in American cities. It is very similar to cylinder-blown glass with a somewhat less distortion and is known for its vertical lines.
How was glass made?
Early manufacture of glass involved single sheets of glass manufactured by a craftsman by blowing through a tube. Generally the further back in history you go, the wavier the glass is.
What happened to glass in the 1700s?
As a result, glass produced in the 1700s tends to have more distortion than glass produced in the 1800s. In the early 1900s, increasing industrial advances led to machine-produced glass. This glass, while less wavy, still had imperfections and was widely used in the United States cities in the early 1900s.
Why is glass called a bulls eye?
Because the glass was spun in a circular motion, the "waves" were more rounded. The center piece had an end-knob imperfection (commonly called a crown or bullion) which was sold as part of the window or more frequently as a small piece of decorative glass over or alongside windows and doors.Today this is referred to as a bulls-eye.
Where can I find wavy glass?
Probably the best place to find wavy glass is the curb. Sadly, so many people throw out their original windows to get replacement windows. If you’re new to this blog, you’ll learn that replacement windows (or disposable windows, as I have come to call them) are a terrible idea and not worth anyone’s time or money.
What was the only glass available?
For years, the only glass available was hand-blown glass. It was expensive and large sheets were not available. A local glass worker would blow the glass on a rod and spin it into discs which when cooled could be cut into small pieces.
What is Hollander's glass?
Hollander’s manufactures glass that is similar in appearance to the wavy glass of old. It may not have the history of antique glass, but for appearances, it looks a lot closer than float glass. Hollander’s also has several grades of glass to match different age buildings.
What is molten glass?
The molten glass is poured out onto a bed of molten tin, which allows the glass to “float” on top and level out perfectly to remove any imperfections. With float glass, you get perfect pieces of glass. Perfectly boring!
How many feet are in a glass cylinder?
They were then cut into smaller cylinders of 7-10 feet typically before being cut lengthwise and reheated to flatten them into one big sheet, from which the glass could be cut according to the window maker’s needs.
How much to walk away with old glass?
Antique shops might be another place to check, but you won’t get the kind of deals you will find at salvage yards. For between $5 and $50, you can often walk away with some old glass.how much you’ll spend just depends on the size and waviness of the glass.
How tall is a cylinder of glass?
This process drew large cylinders of glass vertically from a machine. These cylinders could be upwards of 40 feet tall!
What is a glass cutter?
Actually, calling this tool a "glass cutter" is a bit misleading. This is really a glass scorer . It's job is simply to score the glass on a line that will give the glass a predictable line where it wants to cut. The slight relief the score makes in the surface of the glass should be just enough encouragement the glass needs to break along the line you want it to break on. When scoring the glass the single most important tip is to make a single slow pass with even and not too hard of downward pressure on the scoring wheel. Remember, you're not trying to cut the glass with the wheel, you're just trying to score it enough to encourage it to break on that line.
How to cut glass?
When I cut I measure the opening size of the glass needed and deduct 1/8" from the measurement. This will allow for a little wiggle room for movement and contraction that could occur, as well as a possibly imperfect opening where you're placing the glass.
What could I see with the glass free from the sash?
With the glass free from the sash I could see just how much larger the pieces were than the sash it was destined to go into.
How to break glass with pliers?
When you line the pliers up with your score line you apply subtle pressure that's just enough to start the glass breaking along the score line. When it works well you can see the glass snap and start to crack along the line. After you start the break on one side of the glass move over and repeat it on the other side.
How to crack glass on a score line?
The pliers are also usually covered at the end with a rubber sleeve that will protect the glass. When you line the pliers up with your score line you apply subtle pressure that's just enough to start the glass breaking along the score line. When it works well you can see the glass snap and start to crack along the line.
How to break off glass?
After you start the break on one side of the glass move over and repeat it on the other side. Then use the back of your glass cutter tool to tap along the line to encourage the crack to continue. When all goes well, you can apply a little downward pressure on the glass and the piece will cleanly break off for you. Sometime, when that's not working, it works well to hang the glass over the side of your work surface, supporting it on either side with both hands. Then, with the line sitting right at the edge of your surface, let gravity do its thing and put a little pressure on the glass. It should crack right along the line.
What is the most important tip when scoring a glass?
When scoring the glass the single most important tip is to make a single slow pass with even and not too hard of downward pressure on the scoring wheel. Remember, you're not trying to cut the glass with the wheel, you're just trying to score it enough to encourage it to break on that line.
What does it mean when a window is wavy?
If you have an old glass window that is wavy, leave it as it is. It does not mean that the window is damaged by time. Many people enjoy the unique designs and patterns that are remnants of the past as it signifies the house has history to it. Therefore, the waves and ripples are the characteristics at the time the glass was made and not actually the regular flaws as we might think of.
What type of glass was used in the 19th century?
The first type is called crown glass, and it is a much earlier type of glass. The second type is called cylinder glass, which was later introduced in the 19th century.
What is the difference between a cylinder and a drinking glass?
It actually looks the same as our drinking glass. The only difference is the ripples and waves that you can see on the old cylinder glass.
What does crown glass look like?
You may wonder how crown glass looks. It does not actually look like a crown. It is just a type of glass that is circular in shape. Imagine some eyeglasses in the fact they are circular, well that’s how crown glass is
What is the second type of glass?
The second type is called cylinder glass, which was later introduced in the 19th century. Both types of glass used to be made by heating the glass and blowing it thereby forming the ripple effect that contributed to the wavy characteristic of every window pane that was produced during that time period. Crown Glass.
Why is crown glass made in front of a furnace?
Crown glass was made in front of a furnace to keep it hot and fluid so it could form a circular shape by blowing and spinning it. However, the popularity of crown glass did not last long as it could not be used in larger windows due to its awkward nature, and thus that is why cylinder glass making started.
Can you leave a wavy window as it is?
Because of this, larger windows that would require a much larger window pane could then be made using this type of glass sheet instead of a multiple numbers of crown glass pieces. If you have an old glass window that is wavy, leave it as it is. It does not mean that the window is damaged by time.
What Makes Window Glass Wavy?
Window glass produced in the 19 th century and earlier tends to have a wavy look. In general, the earlier glass was produced, the more likely it is to be wavy and have other imperfections, such as "seeds" (small bubbles). In the later 19 th -century, cylinder glass was used. Earlier in that century, crown glass↗ was the norm.
What are the waves in my windows?
The waves in the glass of your windows are charming reminders of your home's historic heritage↗. While new, energy-efficient windows may save you money on heating and cooling your home, tax credits for keeping original widows may outweigh those benefits.
What is Float Glass?
of England, in 1959↗. The float production method, also known as the Pilkington Process, is the production process used to make glass today.
Why do you put curtains over glass windows?
Doing so helps to more effectively separate indoor air from outdoor air to improve insulation and regulates your home's temperature in a more cost-effective manner.
Do 19th century windows insulate?
While many homeowners like the 19th-century style windows, they may not be as fond of their efficacy in insulating the home. Fortunately, there are many alternatives to achieve the best of both worlds.
What is the process of making a glossy, polished surface by dipping the object, usually of cut glass, into?
The process of making a glossy, polished surface by dipping the object, usually of cut glass, into a mixture of hydrofluoric and sulfuric acids. This technique was developed in the late 19th century. Acid Stamping.
What is an alabaster glass?
Carder’s alabaster glass has an iridescent finish made by spraying the object with stannous chloride and then reheating it. Ale Glass. A type of English drinking glass for ale or beer. Ale glasses, first made in the 17th century, have a tall and conical cup, a stem, and a foot.
What color is Annagelb?
Two types of glass colored by adding uranium oxide to the batch. Annagelb is yellow, and Annagrün is green. They were developed by Josef Riedel (1816-1894), who named them for his wife, Anna, and they were made from 1834.
What is the salt in glass?
In glassmaking, a soluble salt consisting mainly of potassium carbonate or sodium carbonate. It is one of the essential ingredients of glass, generally accounting for about 15-20 percent of the batch. The alkali is a flux, which reduces the melting point of the major constituent of glass, silica.
What is the process of etching a trademark into glass after it has been annealed?
The process of acid-etching a trademark or signature into glass after it has been annealed, using a device that resembles a rubber stamp to apply the acid. Aeolipile (from Greek) The name sometimes given to globular or pear-shaped objects with a narrow neck and mouth. The function of these objects is uncertain.
When was aventurine glass invented?
A type of glass with air traps and specks of aventurine, patented in the 1890s by James Couper, Christopher Dresser, and George Walton.
When was borosilicate glass invented?
Glass in which the flux is boric oxide instead of alkali. The first borosilicate glass was created by Otto Schott in 1882. It has a low coefficient of expansion and therefore withstands sudden changes of temperature.
