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A corner key or tightening key is a small wedge or block of board, timber or plastic, inserted into the slotted inside corners of a canvas stretcher frame to prevent or adjust sagging.
The piece 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. Tightening keys are commonly made in plastic or wood, and are commonly known as corner keys or corner wedges.
Corner keys or wedges come in various forms. Most are available for a single size stretcher bar, making framers and artists hold various sizes in stock. A product called "wedgee" eliminates the need to stock many types as it has a male / female profile which allows it to be pressed together to fit most corner cut-outs.
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Oil painting is the process of painting with pigments with a medium of drying oil as the binder. Commonly used drying oils include linseed oil, poppy seed oil, walnut oil, and safflower oil. The choice of oil imparts a range of properties to the oil paint, such as the amount of yellowing or drying time. Certain differences, depending on the oil, are also visible in the sheen of the paints. An artist might use several different oils in the same painting depending on specific pigments and effects desired. The paints themselves also develop a particular consistency depending on the medium. The oil may be boiled with a resin, such as pine resin or frankincense, to create a varnish prized for its body and gloss.
Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, and other items for which sturdiness is required, as well as in such fashion objects as handbags, electronic device cases, and shoes. It is also popularly used by artists as a painting surface, typically stretched across a wooden frame.
A mortiseand tenon joint connects two pieces of wood or of other material. Woodworkers around the world have used it for thousands of years to join pieces of wood, mainly when the adjoining pieces connect at right angles.
A stretcher, litter, or pram is an apparatus used for moving patients who require medical care. A basic type must be carried by two or more people. A wheeled stretcher is often equipped with variable height frames, wheels, tracks, or skids. In American English, a wheeled stretcher can also be referred to as a gurney.
A webbing stretcher is an upholstery tool used to stretch webbing.
A doorstop is an object or device used to hold a door open or closed, or to prevent a door from opening too widely. The same word is used to refer to a thin slat built inside a door frame to prevent a door from swinging through when closed. A doorstop (applied) may also be a small bracket or 90 degree piece of metal applied to the frame of a door to stop the door from swinging (bi-directional) and converting that door to a single direction.
A hive frame or honey frame is a structural element in a beehive that holds the honeycomb or brood comb within the hive enclosure or box. The hive frame is a key part of the modern movable-comb hive. It can be removed in order to inspect the bees for disease or to extract the excess honey.
An awning or overhang is a secondary covering attached to the exterior wall of a building. It is typically composed of canvas woven of acrylic, cotton or polyester yarn, or vinyl laminated to polyester fabric that is stretched tightly over a light structure of aluminium, iron or steel, possibly wood or transparent material. The configuration of this structure is something of a truss, space frame or planar frame. Awnings are also often constructed of aluminium understucture with aluminium sheeting. These aluminium awnings are often used when a fabric awning is not a practical application where snow load as well as wind loads may be a factor.
Plastic canvas is a craft material of lightweight plastic with regularly spaced holes in imitation of embroidery canvas. It is also commonly known as vinyl weave.
Rabbit-skin glue is a sizing that also acts as an adhesive. It is essentially refined rabbit collagen, and was originally used as an ingredient in traditional gesso.
A violin consists of a body or corpus, a neck, a finger board, a bridge, a soundpost, four strings, and various fittings. The fittings are the tuning pegs, tailpiece and tailgut, endpin, possibly one or more fine tuners on the tailpiece, and usually a chinrest, either attached directly over the tailpiece or to the left of it.
A stretcher bar is used to construct a wooden stretcher used by artists to mount their canvases.
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.
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.
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.
Embroidery hoops and frames are tools used to keep fabric taut while working embroidery or other forms of needlework.
A skateboard is a type of sports equipment used for skateboarding. They are usually made of a specially designed 7-ply maple plywood deck with a polyurethane coating for smoothness and durability and wheels attached to the underside.
Bar stock, also (colloquially) known as blank, slug or billet, is a common form of raw purified metal, used by industry to manufacture metal parts and products. Bar stock is available in a variety of extrusion shapes and lengths. The most common shapes are round, rectangular, square and hexagonal or hex. A bar is characterised by an "enclosed invariant convex cross-section", meaning that pipes, angle stock and objects with varying diameter are not considered bar stock.
Hammer-headed tenon joints are one method that can be used to join curved members of joinery components.
Ángela de la Cruz is a Spanish artist. She was nominated for the Turner Prize in 2010.