spiral spring


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spiral spring

[′spī·rəl ′spriŋ]
(design engineering)
A spring bar or wire wound in an Archimedes spiral in a plane; each end is fastened to the force-applying link of the mechanism.
References in periodicals archive ?
Compared with the cylindrical spiral spring of the existing machine, the disc spring energy storage method presented in this study reduced the height of the machine by 33% and effectively enhanced the spring energy storage value.
The linear potential energy stored in the spiral spring [C.sub.i], subjected to the rotations shown in Figure 15, can be written as
As explained earlier, the operating principle of the rotational viscometer is to drive a spindle through a calibrated spiral spring connected to a motor drive shaft.
In order to efficiently follow the motion of the machine, the telescopic spiral springs are conically wound with over 1500 diameter/length variations making up the range.
"The specifications called for the spiral spring to be made of a material that is extremely hard and, therefore, very difficult to manipulate," explains David Staley, Esta's owner.
'Paul combined his mechanics and engineering expertise with his passion for lasers to pioneer laser systems for diamond die drilling, fine welding of watch flat spiral springs, welding cathode components fortelevision and invention of the laser light cable,' Brockmann said.
His early experience on American railroads led him in 1874 into a business venture with William Sparks Thomson who had a business in Great Britain manufacturing spiral springs for railroad bumpers.
A new method utilizing spiral springs as ES medium is proposed in reference [12], which is called mechanical elastic energy storage (MEES); some of the basic characteristics for the technology are discussed in [13].