 | Samuel Orchart Beeton - 1861 - 904 pages
...vibration, and thus counteracts the cfTecta of elongation of the pendulum spring. lu cold climates, the pendulum spring is contracted, making the vibrations...contraction of the brass rim draws the free end outwards, thui increasing its diameter, retarding its vibrations, aud counteracting the effect of the contraction... | |
 | James W. Benson - Clocks and watches - 1875 - 208 pages
...but as the inner rim of steel does not expand so freely as the outer one of brass, the conflicting action of the two tends to draw the free end of the...effect of the contraction of the pendulum spring. Many contrivances have been introduced to test the equality of compensation balances, but the majority... | |
 | Alfonzo Gardiner - 1881 - 214 pages
...the elongation of the spiral spring. When the temperature decreases the spiral spring iscontracted, making the vibrations quicker ; but the contraction of the brass rim draws the free ends outward, thus increasing the diameter of the rim arid retarding its vibration, so that the effect... | |
 | James W. Benson - Clocks and watches - 1902 - 158 pages
...tends to draw the free end of the circular rim inwards towards its centre, and thus decreases in a\\ but one direction the diameter of the balance. This...effect of the contraction of the pendulum spring. Many contrivances have been introduced to test the equality of compensation balances, but the majority... | |
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Heat elongates the pendulum spring, and thereby causes a slower vibration of the balance. The same amount of heat will also expand the metals composing the balance ; but as the inner rim of steel does not expand so freely as the outer one of brass, the... 