Ads
related to: canvas stretcher tool
Search results
Results From The WOW.Com Content Network
The back of a stretched canvas, with keys inserted at the corner, and additional keys off to the side. 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.
In the case of the French stretcher, a mitre joint is used to adhere the corners. "Keys" or small triangle wedges are inserted in the joint after stretching the canvas to give the canvas its final tension. When fastening the canvas, pressure should be distributed evenly around the stretcher to minimize warping due to unequal distribution of pull.
This method of stretching and preparing a canvas allows for a frame-less presentation of the finished painting. In contrast, a non-gallery wrap canvas is usually intended to be framed before presentation. The stretcher bars are often thinner, and the canvas can be secured at the sides with staples or tacks as the frame will hide them.
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.
The Neil Robertson stretcher (NRS) is believed to have been influenced by a Japanese stretcher made from bamboo. The NRS was designed with the purpose of packaging casualties into a compact form, allowing for rescue operations in spaces with limited openings and facilitating movement through vertical escape hatches while minimizing slippage.
Strip linings strengthen the edges of the canvas so that they can withstand re-stretching. Both strip lining and patching are less invasive than lining. Another method used in place of lining is loose-lining. Loose-lining is accomplished by stretching a painted image over polyester sailcloth without adhesive between the fabrics. [2]