 | Robert Kemp Philp - 1859 - 396 pages
...vibrations; and with a weight or spring, , having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels show how many swings or beata of the pendulum have taken place, because at every. beat, a tooth of the last wheel is allowed... | |
 | Richard Green Parker - 1861 - 488 pages
...pendulum. The clock itself is nothing more than a pendulum connected with wheel-work, so as to reoord the number of vibrations. A weight is attached in...fixed on the axis of the wheel projecting through the _ dial-plate, will be the second-hand of the clock. Other wheels are so connected with the first, and... | |
 | Richard Green Parker - 1862 - 488 pages
...to record the number of vibrations. A weight is attached in order to counteract the retarding elTect of friction and the resistance of the air. The wheels...of the pendulum, or in sixty seconds ; and a hand, 6xed on the axis of the wheel projecting through the dial-plate, will be the second-hand of the olock.... | |
 | Technical educator - 1877 - 862 pages
...having force enough to counteract the retarding effects of friction and the resistance of the air. Tho wheels show how many swings or beats of the pendulum have taken place, because at every beat a tooth of the last wheel is allowed to pass. Now, if the wheel has sixty teeth... | |
| |
... wheel is allowed to pass. Now, if this wheel has sixty teeth, as is common, it will just turn round once for sixty beats of the pendulum, or seconds; and a hand fixed on its axis, projecting through the dial-plate, will be the second hand of the clock. 
