 G, which carries the whole of the upper works, and also a pointer, to show the degree and nearest five minutes to be read off on the azimuth circle ; the remaining minutes and seconds being obtained by means of the two reading microscopes, C and D. The...  A Treatise on Astronomy - Page 46by Elias Loomis - 1866 - 338 pagesFull view - About this book
 | Frederick Walter Simms - 1834 - 124 pages
...concentric with it, is placed a strong circular plate, E, which carries the whole of the upper works, and also a pointer, to show the degree and nearest...obtained by means of the two reading microscopes, F and G ; this plate, by means of the conical part B, (which is carefully fitted to the axis) rests... | |
 | Benjamin Pike - 1848 - 356 pages
...with it, is placed a strong circular plate, E, which carries Fig. 13o. the whole of the upper works, and also a pointer, to show the degree and nearest...obtained by means of the two reading microscopes, F and G ; this plate, by means of the conical part, B, which is carefully fitted to the axis, rests... | |
 | Benjamin Pike (Jr.) - 1848 - 482 pages
...with it, is placed a strong circular plate, E, which carries Fig 133. the whole of the upper works, and also a pointer, to show the degree .and nearest...azimuth circle ; the remaining minutes and seconds beinor obtained by means of the two reading microscopes, F and G ; this plate, by means of the conical... | |
 | John Ainslie - 1849 - 586 pages
...concentric with it, is placed a strong circular plate E, which carries the whole of the upper works, and also a pointer, to show the degree and nearest five minutes on the azimuth circle, while the remaining minutes and seconds are obtained by the reading-microscopes... | |
 | Frederick Walter Simms - 1850 - 184 pages
...a strong circular plate, E, which carries the whole of the upper works, and also a pointer, to shew the degree and nearest five minutes to be read off...obtained by means of the two reading microscopes, F and G : this plate, by means of the conical part, B, (which is carefully fitted to the axis) rests... | |
 | Elias Loomis - 1855 - 514 pages
...concentric with it, is placed a strong circular plate, G, which carries the whole of the upper works, and also a pointer, to show the degree and nearest...means of the projecting pieces, LL. The telescope, MM, is connected with the horizontal axis in a manner similar to that of the transit instrument. Upon... | |
 | Elias Loomis - 1855 - 508 pages
...concentric with it, is placed a strong circular plate, G, which carries the whole of the upper works, and also a pointer, to show the degree and nearest five minutes to he read off on the azimuth circle ; the remaining minutes and seconds being obtained by means of the... | |
 | Benjamin Pike - 1856 - 412 pages
...circular plate, E, which carries ASTRONOMICAL INSTRUMENTS. Fig. IS•.. the whole of the upper works, and also a pointer, to show the degree and nearest five minutes to be read off on the azinluth circle ; the remaining minutes and seconds being obtained by means of the two reading microscopes,... | |
 | Elias Loomis - 1865 - 516 pages
...concentric with it, is placed a strong circular plate, Gr, which carries the whole of the upper works, and also a pointer, to show the degree and nearest...axis, I, by means of the projecting pieces, LL. The telqscope, MM, is connected with the horizontal axis in a manner similar to that of the transit instrument.... | |
 | W.H.C. BARTLETT,LL.D., - 1865 - 494 pages
...concentric with it, is placed a strong circular plate E, which carries the whole of the upper works, and also a pointer, to show the degree and nearest...being obtained by means of the two reading microscopes F. This plate, by means of the cone B, rests on the axis, and moves concentrically with it. The conical... | |
| |
