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A spring scale, spring balance or newton meter is a type of mechanical force gauge or weighing scale. It consists of a spring fixed at one end with a hook to attach an object at the other. [ 1 ] It works in accordance with Hooke's Law , which states that the force needed to extend or compress a spring by some distance scales linearly with ...
The sash weight is connected to the window by a braided cotton sash cord, or a chain, that runs over a pulley at the top of the frame, although spring balances are sometimes used. Repairing a broken cord requires disassembling parts of the window frame. [citation needed]
There are different methods to balance the arms and the lamp-cap: coil springs In some cases a set of two coil springs working in parallel on both sides of the pivoting arm is used. (They function in the same way as a single spring.) counterweight(s) (a method frequently used in Sash windows and drawing boards). Friction between parts of the ...
Three types of spring balances are called a tape or clock spring balance; channel or block-and-tackle balance, and a spiral or tube balance. Double-hung sash windows were traditionally often fitted with shutters. Sash windows can be fitted with simplex hinges that let the window be locked into hinges on one side, while the rope on the other ...
The following table gives formula for the spring that is equivalent to a system of two springs, in series or in parallel, whose spring constants are and . [1] The compliance c {\displaystyle c} of a spring is the reciprocal 1 / k {\displaystyle 1/k} of its spring constant.)
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A balance spring, or hairspring, is a spring attached to the balance wheel in mechanical timepieces. It causes the balance wheel to oscillate with a resonant frequency when the timepiece is running, which controls the speed at which the wheels of the timepiece turn, thus the rate of movement of the hands.
metal spring balanced arm lamps rubber elastic balanced arm lamps {Formerly unsigned contribution by Stef breukel ( talk ) 06:26, 04 April 2007 added by ( Ping welcome) Steue ( talk ) 14:13, 10 October 2022 (UTC) } [ reply ]
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