 The telescope rests on a universal joint, placed on masonry, about 6 feet below the ground, and is elevated or depressed by a chain and windlass; and, although it weighs about 15 tons, the instrument is raised by two men with great facility. Of course,...  Tales about the sun, moon, and stars - Page 266by Peter Parley (pseud.) - 1862Full view - About this book
 | Ormsby MacKnight Mitchel - 1860 - 698 pages
...feet below (he ground, and ,t is elevated and depressed by a chain and windlass; and tbough it weighs 15 tons, the instrument is raised by two men with...Of course it is counterpoised in every direction. The observer, when at work, stands in one of four galleries, the three highest of which are drawn out... | |
 | Jabez Hogg - 1861 - 594 pages
...which the latter rests, weigh about 15 tons. " The telescope rests on a universal joint, placed in masonry about 6 feet below the ground, and is elevated...Of course, it is counterpoised in every direction. " The observer, when at work, stands in one of four galleries, the three highest of which are drawn... | |
 | Thomas Dick - 1869 - 664 pages
...the ground, and it is elevated and depressed by a chain and windlass, and though it weighs fifteen tons, the instrument is raised by two men with great...Of course it is counterpoised in every direction. The observer when at work, stands in one of THE TELESCOPE. four galleries, the three highest of which... | |
 | 1845 - 870 pages
...rests, weigh about 15 tons. " The telescope rests on an universal joint, placed on masonry about six feet below the ground, and is elevated or depressed...will embrace an arc between 10 degrees of altitude toward the south, and 47 degrees north ; so that all objects between the pole and 27 degrees south... | |
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