The principal or most important spring in a piece of mechanism, especially the moving spring of a watch or clock or the spring in a gunlock which impels the hammer.
The chief or most powerful motive; the efficient cause of action; as, the mainspring of action.
A strong spring, aka an energy storage device, that operates the striker or hammer of a firearm.
Flat coiled spring that powers all mechanical watches.
The mechanical, energy storage device that operates the striker or hammer of a firearm.
Together with the barrel, makes up the driving element of a movement. It stores and transmits the power force needed for its functioning.
The wound, flat metal spring which provides the motive power for the watch. Older mainsprings were "blue steel," but modern mainsprings tend to be made of alloys which are more resistant to breakage and corrosion.
the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
a thin and flat strip of steel, hardened and tempered to give the maximum of strength and elasticity
The driving flat coiled spring which supplies power to the watch.
The mainspring is the main power spring in a timepiece.
The flat, ribbon-like tempered steel spring wound inside the barrel and used to drive the train wheels.
The spring that powers a handgun's firing mechanism. 1911: The Colt-Browning United States Government Model of 1911 .45 automatic pistol. Loosely, any pistol that uses the same design.
The mainspring or hammer spring, is the spring that powers the hammer.
The spring that delivers energy to the hammer or striker. The recoil or operating spring in semiautomatic guns is a part of the breech closing system; is not the same as the mainspring.
Principal spring in watch; a flat spring is coiled in a barrel.
The driving spring of a watch or clock, contained in the barrel.
A flat spring coiled or wound to supply power to the watch.
This and the barrel (s.) make up the driving element of a movement (s.). It stores and transmits the power force needed for its functioning.
A long strip of hardened & tempered steel coiled into a barrel or with a loop around a pillar used to give power to the train of a clock.
The coiled spring that powers mechanical watches and many mechanical clocks.
The mainspring in a mechanical watch is the spring that stores energy of winding to operate the watch between windings. In the USA it is sometimes called the motor spring.
