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" By means of the speaking-pipe the communications of the observer are conveyed to the assistant in the observatory, and the workman is directed to perform the required motions. "
Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory, and N ...
von John Mason Good - 1819
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Monthly Magazine; Or, British Register of Literature, Sciences and ..., Band 1

1796 - 472 Seiten
...direct his voice into this pipe, whilft his eye is at the glafs. This pipe is i£ inch m diameter, runs down to the bottom of the tube, where it goes into a turning joint, thence into a drawing tube, and out of this into another turning joint, from which it proceeds by a...
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Ambulator: Or, a Pocket Companion in a Tour Round London, Within the Circuit ...

1800 - 274 Seiten
...focal »image. From the opening of the telefcope, near the place of -the eye-glafs, a fpeaking-pipe runs down to the bottom of the tube, where it goes into a turning joint ; and, alter feveral other inflexions, it at length divides into two branches, one going into the obfervatory,...
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The Accomplished Tutor: Or, Complete System of Liberal Education ..., Band 1

Thomas Hodson - 1806 - 576 Seiten
...of the eye glafs, which the obferver looks through,' at the focal image, is a fpeaking pipe, which runs down to the bottom of the tube, where it goes...Several other inflections, it at length divides into two parts,' -one of •which goes into the obfervatory D, and the other into the work-room E. By this fpeaking-pipe,...
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The Accomplished Tutor; Or, Complete System of Liberal Education ..., Band 1

Thomas Hodson - 1806 - 502 Seiten
...place of the eye glafs, which the obferver looks through, at the focal image, is a fpeaking pipe, which runs down to the bottom of the tube, where it goes into a turning joint ; and after feveral other inflections, it at length divides into two parts, one of which goes into the obfervatory...
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The ambulator; or, The stranger's companion in a tour round London ...

John Bew - 1807 - 408 Seiten
...image. From tilt opening of the telescope, near tire place of the eye-glass, a speaking-pipe runs doi\n to the bottom of the tube, where it goes into a turning joint; and, after several other inflexions, it at length divides into two branches, one going into the observatory, and the other into...
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London, by David Hughson, Band 5

Edward Pugh - 1808 - 572 Seiten
...Britannia, Vol. I. p.557. tube, where it goes into a turning joinr; and, after several other inflexions, it at length divides into two branches, one going into the observatory, and the other into the work room; and thus the communications of the observer are conveyed to the assistant...
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London; Being an Accurate History and Description of the British ..., Band 5

David Hughson - 1808 - 576 Seiten
...an antient tenure, was abolished by the late provost, Dr. Cooke. — Magna Britannia, Vol. I. p.557. tube, where it goes into a turning joint ; and, after several other inflexions, it at length divides into two branches, one going into the observatory, and the other into...
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London; Being an Accurate History and Description of the British ..., Band 5

David Hughson - 1808 - 566 Seiten
...Vol. I. p.557. tube, tube, whore it goes into a turning joint; and, after several other inflexions, it at length divides into two branches, one going into the observatory, and the other into the work room ; and thus the communications of the observer are conveyed to the...
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The Emporium of Arts & Sciences, Band 1

John Redman Coxe, Thomas Cooper - 1815 - 554 Seiten
...direct his voice into this pipe, whilst his eye is at the glass. This pipe is 1 1-2 inch in diameter, runs down to the bottom of the tube, where it' goes into a turning joint, thence into a drawing tube, and out of this into another turning joint, from which it proceeds by a...
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Encyclopaedia Perthensis; Or Universal Dictionary of the Arts ..., Band 22

1816 - 752 Seiten
...image. From the opening of the telcicope, near the place of the eye-glafs, a fptviking pipe rur.!| clown to the bottom of the tube, where it goes into a turning join! ; and after ieverr.l other inflections, it at lenpth divides into two branches, one going into...
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