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Stretcher bars are also used in picture framing when framers are framing things like sport shirts etc. Stretcher bars are used extensively in theatrical productions for framing material backdrops. When a photographer takes a picture then digitally transfers this onto a canvas via inkjet printing, he then stretches this over a stretcher frame.
Most stretcher frames have eight keys, two in each corner. [1] Each key is tapped in to expand the stretcher bars slightly, tensioning the canvas. [1] [2] The keys can be used to re-tighten the canvas as it relaxes naturally over time. [5] If the key is tapped too forcefully, it may tear the side of the canvas. [4]
Heavy duty (10 bar) hyperbaric stretcher with hatch removed, showing locking rings for hatch and for connecting to full size chambers. A hyperbaric stretcher is a lightweight pressure vessel for human occupancy (PVHO) designed to accommodate one person undergoing initial hyperbaric treatment during or while awaiting transport or transfer to a treatment chamber.
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Strainer bar frames are usually in the shape of a rectangle, although shaped canvases are also possible. [1] 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.
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A flexible stretcher, also known by the brand names Reeves sleeve or SKED, [note 1] is a stretcher that is often supported longitudinally by wooden or plastic planks. Essentially a tarpaulin with handles, it is primarily used to move a patient through confined spaces , e.g., a narrow hallway , or to lift obese patients. [ 14 ]
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