 A weight, attached to a projection connected' with the endless screw, overcomes the friction of the machine. The clock vibrating in a circle regulates the motion, by moving an endless screw connected with a second wheel in the above projection. The weight...  The London Journal of Arts and Sciences - Seite 2711825Vollansicht - Über dieses Buch
 | William Newton - 1825 - 442 Seiten
...instrument may be turned in declination with the finger, and round the polar axis with still less force. The most perfect motion round the polar axis is produced...the tube, and it seems as if we were observing an immoveable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | William Newton, Charles Frederick Partington - 1825 - 446 Seiten
...instrument may be turned in declination with the finger, and round the polar axis with still less force. The most perfect motion round the polar axis is produced...the tube, and it seems as if we were observing an immoveable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | 1825 - 314 Seiten
...mechanism being as simple as it is ingenious. Л weight attached to a projection connected with an endless screw, overcomes the friction of the machine...the tube, and it seems as if we were observing an immoveable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | 1825 - 484 Seiten
...mechanism being as simple as it is ingenious. A weight, attached to a projection connected with an endless screw, overcomes the friction of the machine....the tube, and it seems as if we were observing an immovable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | Perry Fairfax Nursey - 1825 - 476 Seiten
...mechanism being as simple as it is ingenious. A weight, attached to a projection connected with an endless screw, overcomes the friction of the machine....the tube, and it seems as if we were observing an immovable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | 1825 - 546 Seiten
...mechanism being as simple as it is ingenious. A weight, attached to a projection connected with an endless screw, overcomes the friction of the machine....the tube, and it seems as if we were observing an immovable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | 1825 - 506 Seiten
...second wheel in the above projection. The weight of the clock as well as thatof the friction apparatus may be wound up without the motion being interrupted....the tube, and it seems as if we were observing an immoveable sky. But the artist has done still more ; he has introduced a hand on a graduated dial of... | |
 | 1825 - 506 Seiten
...second wheel in the above projection. The weight of the clock as well as that of the friction apparatus may be wound up without the motion being interrupted....kept in motion, the star will remain quietly in the centra, even when magnified 700 times. At the same time there is not the least shake or wavering of... | |
 | 1826 - 460 Seiten
...with the endless screw overcomes the friction of the machine. The clock vibrating in a circular arc, regulates the motion by moving an endless screw connected...remain quietly in the centre, even when magnified seven hundred times. At the same time, there is not the least shake or wavering of the tube, and it... | |
 | 1826 - 418 Seiten
...moving an endless screw connected with a second wheel in the above projection. The weight of the deck, as well as that of -the friction, may be wound up...remain quietly in the centre, even when magnified seven hundred times. At the same time, there is not the least shake or wavering of the tube, and it... | |
| |
