Elliptical lathes are a type of lathe machine that is used to carve finished circular and oval picture frames. These machines are designed to rotate the wood blank in a variable elliptical motion, which is controlled by a combination of the rear drive mechanism and large faceplates.
The Old Schwamb Mill in Arlington, Massachusetts is a well-known site for the use of these machines. The mill dates back to the 1860s and has been used to produce a variety of wooden products over the years. The mill is now home to a museum that educates visitors on the history of woodworking and the use of elliptical lathes.
The process of producing a frame with these machines involves several steps. First, a piece of wood is selected for its size and quality. The wood is then roughed out to the shape of the frame using a circular saw. Next, the wood is mounted onto the elliptical lathe, and the operator adjusts the rear drive mechanism to control the speed and motion of the lathe.
As the machine rotates the wood, the operator uses hand tools to shape the frame. This is a precision process, as the operator must carefully control the depth and angle of the cuts. The elliptical motion of the lathe allows for a more uniform and consistent cut across the entire frame.
Once the frame is shaped, it is sanded and finished with varnish or paint. The finished product is a unique and handcrafted piece, with a high level of detail and precision.
Elliptical lathes have been in use for over a century and are still used today by skilled woodworkers. The machines are known for their ability to create complex shapes and patterns, which is why they are often used in the production of decorative items such as picture frames, vases, and bowls.
One of the key advantages of elliptical lathes is their ability to produce oval shapes. Oval frames are often used in portrait photography, and the ability to produce them with precision and consistency is highly valued by photographers and their clients.
Elliptical lathes are also used in the production of other decorative items such as stair railings, newel posts, and furniture legs. The machines allow for complex curves and twists, which are difficult to achieve with other woodworking tools.
In addition to their use in woodworking, elliptical lathes are also used in the production of metal parts. The machines can be adapted to work with a variety of materials, including brass, copper, and aluminum. This versatility makes them ideal for use in industries such as aerospace, automotive, and jewelry manufacturing.
In conclusion, elliptical lathes are a highly specialized type of lathe machine that is used in the production of decorative items such as picture frames, vases, and bowls. The machines are known for their ability to produce complex shapes and patterns, including ovals and twists. They have been in use for over a century and are still valued by skilled woodworkers and metalworkers today. The Old Schwamb Mill in Arlington, Massachusetts is a historic site that showcases the use of elliptical lathes in woodworking and provides visitors with an educational experience on the history of woodworking.