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Coil springs have many applications; notable ones include: Buckling springs in computer keyboards; Mattress coils in innerspring mattresses; Upholstery coil springs in upholstery; Coil springs are commonly used in vehicle suspension. These springs are compression springs and can differ greatly in strength and in size depending on application.
A spring (made by winding a wire around a cylinder) is of two types: Tension or extension springs are designed to become longer under load. Their turns (loops) are normally touching in the unloaded position, and they have a hook, eye or some other means of attachment at each end. Compression springs are designed to become shorter when loaded ...
This patent used coiled shaped springs in an arrangement to minimize for furniture for a nautical sailing vessel. In 1828, Samuel Pratt [13] received Great Britain Patent 5668 for "Elastic Beds And Cushions", which was to be an improvement in compression spring arrangements in furniture. Page 5 of the patent depicts two hour-glass shaped wire ...
A spring pin (also called tension pin or roll pin) is a mechanical fastener that secures the position of two or more parts of a machine relative to each other. Spring pins have a body diameter which is larger than the diameter of the hole they are intended for, and a chamfer on either one or both ends to facilitate starting the pin into the hole.
The load applied to the reduced-thickness spring to obtain a deflection equal to the 75% of the free height (of an unreduced spring) must be the same as for an unreduced spring. As the overall height is not reduced, springs with reduced thickness inevitably have an increased flank angle and a greater cone height than springs of the same nominal ...
A leaf spring is a simple form of spring commonly used for suspension in wheeled vehicles. Originally called a laminated or carriage spring, and sometimes referred to as a semi-elliptical spring, elliptical spring, or cart spring, it is one of the oldest forms of vehicle suspension. A leaf spring is one or more narrow, arc-shaped, thin plates ...