Depending upon the patent, the stretcher framework is most commonly wood or occasionally metal. Other terms: auxiliary support, canvas frame, stretching frame, stretcher, strainerĬontinuous Tension Stretcher: A stretcher first developed in the mid-nineteenth century intended to provide constant, even tension. Other term: bevelĬhassis: Another name for the wooden frame on which a textile is stretched ( Gottsegen 1993, 298). ![]() There is no known reference to this tool prior to 1889 ( Gettens and Stout 1966).Ĭhamfer: A cut that is made in wood or some other material, “usually at a 45° angle to the adjacent principal faces” ( Flexner 1981, 245), intended to place distance between the inner member edge and the stretched canvas. A blunt spur centered on one side of the pliers' head serves as a fulcrum, which rests against the wooden members while stretching. It is composed of a wide, corrugated head designed to provide a firm grip on the fabric support. Hardware is needed to secure the joint.Ĭanvas Frame: See Auxiliary Support, Chassis, Strainer, Stretcher.Ĭanvas Pliers: A tool used to stretch fabric over the auxiliary support. The ends are cut at 90° angles to the length of the member. Other terms: corner bridle joint, mortise and tenon, slot mortise and tenon, t-bridle jointīutt Joint: A joint made by abutting two members to one another without overlapping of the two parts ( Mayer 1969). The tenon is therefore cut to the full width of the stretcher member ( Self 2000). The tenon is formed by cutting wood away from the front and back of the stretcher bar end so that it slips into the mortise. Other term: chamferīevel Joint: See Miter Joint or Simple Miter Joint.īolt: A metal rod or pin for fastening objects together, which usually has a head at one end and screw threads at the other end.īridle Joint: A term more commonly used in carpenter's parlance, it refers to a variant of a mortise and tenon joint in which the mortise is constructed with three open sides, forming a bridle. The slope descends from the outer edge to the inner edge and is intended to maintain a space between the canvas and bar or member. Other terms: lip, half roundīevel: “The inclination that one line or surface makes when not at a right angle” ( Flexner 1981, 143) a slight angle on the face of the bar or member closest to the canvas. It is designed to hold the fabric support away from the auxiliary support's members once stretched. Other terms: stretcher member, memberīead: A rounded edge that is either attached or carved to form a protruding outside turnover edge of the auxiliary support. ![]() This component can be joined together in combinations of four or more. In reference to stretchers, this is rigid material, commonly wood, that acts as the principal component of an auxiliary support. Other terms: auxiliary chassis, canvas frame, stretching frame, stretcher, strainerīar: A relatively long, evenly shaped piece of some solid substance, such as metal or wood, used as a guard or obstruction or for some mechanical purpose. The term usually refers to a stretcher or strainer. General Stretcher and Strainer Definitions Īuxiliary Support: The framework over which the painting canvas is stretched. ![]() The information presented on the Paintings Conservation Wiki is the opinion of the contributors and does not imply endorsement or approval, or recommendation of any treatments, methods, or techniques described. Return to previous section: Treatment Variations Return to Stretchers and Strainers Table of Contents
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