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Stretcher Bar
A stretcher bar is used to construct a wooden stretcher used by artists to mount their canvases. They are traditionally a wooden framework support on which an artist fastens a piece of canvas. They are also used for small-scale embroidery to provide steady tension, affixing the edges of the fabric with push-pins or a staple gun before beginning to sew, and then removing it from the stretcher when the work is complete. Stretchers are usually in the shape of a rectangle, although shaped canvases are also possible. Construction Since a stretcher is simply a frame, it can be constructed in a variety of ways. The differences in construction have to do with how the corners are built. Commercially available pre-fabricated stretchers come in segments with interlocking corners, that can be fit together like puzzle pieces. Corner supports can also be made using simple woodworking techniques, however. In the case of the French stretcher, a mitre joint is used to adhere the corners. "Keys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stretcher Bar Corner Showing Tightening Slot 051907
A stretcher, gurney, litter, or pram is an apparatus used for moving patients who require medical care. A basic type (cot or litter) must be carried by two or more people. A wheeled stretcher (known as a gurney, trolley, bed or cart) is often equipped with variable height frames, wheels, tracks, or skids. Stretchers are primarily used in acute out-of-hospital care situations by emergency medical services (EMS), military, and search and rescue personnel. In medical forensics the right arm of a corpse is left hanging off the stretcher to let paramedics know it is not a wounded patient. They are also used to hold prisoners during lethal injections in the United States. History An early stretcher, likely made of wicker over a frame, appears in a manuscript from . Simple stretchers were common with militaries right through the middle of the 20th century. Gurney Generally spelled ''gurney'', but also ''guerney'' or ''girney''. The first usage of the term for a wheeled stretcher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scandinavia
Scandinavia; Sámi languages: /. ( ) is a subregion#Europe, subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, Norway, and Sweden. It can sometimes also refer more narrowly to the Scandinavian Peninsula (which excludes Denmark but includes part of Finland), or more broadly to include all of Finland, Iceland, and the Faroe Islands. The geography of the region is varied, from the Norwegian fjords in the west and Scandinavian mountains covering parts of Norway and Sweden, to the low and flat areas of Denmark in the south, as well as archipelagos and lakes in the east. Most of the population in the region live in the more temperate southern regions, with the northern parts having long, cold, winters. The region became notable during the Viking Age, when Scandinavian peoples participated in large scale raiding, conquest, colonization and trading mostl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tightening Key
A tightening key is a small wedge or shim used in the construction of a canvas stretcher frame with expandable joints. The key is inserted into the slotted inside the stretcher bars at the mitered corners of the frame to prevent or adjust sagging. Tightening keys are commonly made in plastic or wood, and are often called corner keys or corner wedges. Tightening keys were introduced in the mid-18th century, making expandable (versus rigid) stretcher frames possible. Use Most stretcher frames have eight keys, two in each corner. Each key is tapped in to expand the stretcher bars slightly, tensioning the canvas. The keys can be used to re-tighten the canvas as it relaxes naturally over time. If the key is tapped too forcefully, it may tear the side of the canvas. Conversely, keys that become too loose can fall out during handling and damage the painting's surface. The process of inserting keys into the stretcher is called "keying-out." Types Corner keys or wedges come in various for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gallery Wrap
Gallery wrap is a method of stretching an artist's canvas so that the canvas wraps around the sides of the stretcher bar or strainer bars and is secured to the back of the wooden frame. Structure The frame is usually 1.25" (approx. 4 cm) thick. As a result, the hardware ( staples or tacks) used to secure the canvas are not visible. The sides of the canvas are prepared and primed in the same manner as the face or front. They may then be painted a solid color (usually white) or painted to continue the image appearing on the face. This method of stretching and preparing a canvas allows for a frameless presentation of the finished painting or photograph. In some competitions it is considered "framed" and ready to hang. Terminology In canvas printing, the term "gallery wrap" refers to an image that appears on the sides of the frame as well as the front. The image on the sides is either a continuation or a reflection of the main image, or an otherwise fabricated element such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canvas Print
A canvas print is the result of an image printed onto canvas which is often stretched, or gallery-wrapped, onto a frame and displayed. Canvas prints are used as the final output in an art piece, or as a way to reproduce other forms of art. Printing methods Reproductions of original artwork have been printed on canvas for many decades using offset printing. Since the 1990s, canvas print has been also been associated with either dye sublimation or inkjet print processes (often referred to as repligraph or giclée respectively). The canvas print material is generally cotton or plastic based poly canvas, often used for the reproduction of photographic images. Digital printers capable of producing canvas prints range from small consumer printers owned by the artist or photographer themselves up to large format printing service printers capable of printing onto canvas rolls measuring or more. Digital files of artwork, paintings, photograph, or drawings may be sent directly to printi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inkjet
Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper and plastic substrates. Inkjet printers were the most commonly used type of printer in 2008, and range from small inexpensive consumer models to expensive professional machines. By 2019, laser printers outsold inkjet printers by nearly a 2:1 ratio, 9.6% vs 5.1% of all computer peripherals. The concept of inkjet printing originated in the 20th century, and the technology was first extensively developed in the early 1950s. While working at Canon in Japan, Ichiro Endo suggested the idea for a "Bubble jet" printer, while around the same time Jon Vaught at HP was developing a similar idea. In the late 1970s, inkjet printers that could reproduce digital images generated by computers were developed, mainly by Epson, Hewlett-Packard (HP) and Canon. In the worldwide consumer market, four manufacturers account for the majority of inkjet printer sales: Canon, HP, Epson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross Brace
In construction, cross bracing is a system utilized to reinforce building structures in which diagonal supports intersect. Cross bracing is usually seen with two diagonal supports placed in an X-shaped manner. Under lateral force (such as wind or seismic activity) one brace will be under tension while the other is being compressed. In steel construction, steel cables may be used due to their great resistance to tension (although they cannot take any load in compression). The common uses for cross bracing include bridge (side) supports, along with structural foundations. This method of construction maximizes the weight of the load a structure is able to support. It is a usual application when constructing earthquake-safe buildings. Cross bracing can be applied to any rectangular frame structure, such as chairs and bookshelves. Its rigidity for two-dimensional grid structures can be analyzed mathematically as an instance of the grid bracing problem. Cross bracing may employ full d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the world, with its internationally recognised territory covering , and encompassing one-eighth of Earth's inhabitable landmass. Russia extends across Time in Russia, eleven time zones and shares Borders of Russia, land boundaries with fourteen countries, more than List of countries and territories by land borders, any other country but China. It is the List of countries and dependencies by population, world's ninth-most populous country and List of European countries by population, Europe's most populous country, with a population of 146 million people. The country's capital and List of cities and towns in Russia by population, largest city is Moscow, the List of European cities by population within city limits, largest city entirely within E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butt Joint
A butt joint is a technique in which two pieces of material are joined by simply placing their ends together without any special shaping. The name "butt joint" comes from the way the material is joined. The butt joint is the simplest joint to make since it merely involves cutting the material to the appropriate length and butting them together. It is also the weakest because unless some form of reinforcement is used (see below), it relies upon glue or welding alone to hold it together. Because the orientation of the material usually presents only one end to a long gluing or welding surface, the resulting joint is inherently weak. Nonetheless, it generally provides sufficient strength in most cases, particularly when fasteners are used. The butt joint is widely used in many applications due to its simplicity, notably in rough carpentry and construction. Methods The butt joint is a very simple joint to construct. Members are simply docked (cut off) at the right angle and have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Stretcher Bars Assembled Disassembled 051907
Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum and polarization. Its speed in a vacuum, 299 792 458 metres a second (m/s), is one of the fundamental constants of nature. Like all types of electromagnetic radiation, visible light propagates by massless elementary particles called photons that represents the quanta of electromagnetic field, and can be analyzed as both waves and particle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strainer Bar
{{unreferenced, date=May 2016 A strainer bar is used to construct a wooden stretcher frame used by artists to mount their canvases. They are traditionally a wooden framework support on which an artist fastens a piece of canvas. They are also used for small-scale embroidery to provide steady tension, affixing the edges of the fabric with push-pins or a staple gun before beginning to sew, and then removing it from the frame when the work is complete. Strainer bar frames are usually in the shape of a rectangle, although shaped canvases are also possible. A stretcher frame constructed from strainer bars should not be confused with one constructed from stretcher bars. Strainer bars are fixed to one another with wood glue, nails or staples, often in conjunction. Strainer bar frames are often reinforced with other fixed elements such as corner and cross braces. These frames are not built to accommodate the insertion of tightening keys into their corners to further tighten the canvas stre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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