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Bicycle saddle. A bicycle saddle, sometimes called a bicycle seat, is one of five contact points on an upright bicycle, the others being the two pedals and the two handles on the handlebars. (A bicycle seat in the specific sense also supports the back.)
The tenon, formed on the end of a member generally referred to as a rail, fits into a square or rectangular hole cut into the other, corresponding member. The tenon is cut to fit the mortise hole exactly. It usually has shoulders that seat when the joint fully enters the mortise hole. The joint may be glued, pinned, or wedged to lock it in place.
Caulk or caulking[1] is a material used to seal joints or seams against leakage in various structures and piping. The oldest form of caulk consisted of fibrous materials driven into the wedge-shaped seams between boards on wooden boats or ships. Cast iron sewerage pipes were formerly caulked in a similar way. Riveted seams in ships and boilers ...
Windsor chair. A Windsor chair is a chair built with a solid wooden seat into which the chair-back and legs are round- tenoned, or pushed into drilled holes, in contrast to other styles of chairs whose back legs and back uprights are continuous. The seats of Windsor chairs are often carved into a shallow dish or saddle shape for comfort.
Foam rubber (also known as cellular rubber, sponge rubber, or expanded rubber) is rubber that has been made with a foaming agent so that its structure is an air-filled matrix. Commercial foam rubber is generally made of synthetic rubber, natural latex, or polyurethane. Latex foam rubber, used in mattresses, is well known for its endurance.
To complement an individualized wheelchair, an occupational therapist may also consider prescribing a hospital bed, pressure-relieving mattresses and foam wedges for proper positioning to prevent pressure skin ulcers, contractures and deformities. [1] Specialized trays, input devices and software may also be prescribed to facilitate computer use.