Universal Exhibition At Philadelphia 1876 Notices On the Models Charts Draw
Universal Exhibition At Philadelphia 1876 Notices On the Models Charts Draw
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In our eReader you can find the full English version of the book. Read Universal Exhibition At Philadelphia 1876 Notices On the Models Charts Draw Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Universal Exhibition At Philadelphia 1876 Notices On the Models Charts Draw
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To quickly assess the difficulty of the text, read a short excerpt:
The lantern is circular and has an exte- rior diameter of o m, 8i . The pedestal, o m, /i5 in diameter, contains a mechanism for imparting a rotary movement to the drum. The dimensions of the different constituent parts are upon a scale as moderate as possible, to facili- tate carriage and to enable it to be mounted upon the exterior gallery of a lighthouse under repair, or upon a temporary frame-work.
The revolving mechanism is capable of giving three different degrees of speed to the cylinder..., and this is effected by disconnecting gear. The vertical lenses slide into the grooves of the frame, so that they can be taken out or put in, according to the character of the light re- quired. They are formed of two parts superposed, each of 296 LIGHTING APPARATUS.
which is furnished with a little frame, into which a col- oured glass can be inserted if necessary. The focal lamp has a lower reservoir without mechanism, and a burner with two wicks for mineral oil. It carries a plain or col- oured glass chimney, according to circumstances, and can be replaced by a lamp with one wick, if only a mo- derate intensity is required.
What to read after Universal Exhibition At Philadelphia 1876 Notices On the Models Charts Draw?
You can find similar books in the "Read Also" column, or choose other free books by France Ministre Des Travaux Publics to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The lantern is circular and has an exte- rior diameter of o m, 8i . The pedestal, o m, /i5 in diameter, contains a mechanism for imparting a rotary movement to the drum. The dimensions of the different constituent parts are upon a scale as moderate as possible, to facili- tate carriage and to enable it to be mounted upon the exterior gallery of a lighthouse under repair, or upon a temporary frame-work.
The revolving mechanism is capable of giving three different degrees of speed to the cylinder..., and this is effected by disconnecting gear. The vertical lenses slide into the grooves of the frame, so that they can be taken out or put in, according to the character of the light re- quired. They are formed of two parts superposed, each of 296 LIGHTING APPARATUS.
which is furnished with a little frame, into which a col- oured glass can be inserted if necessary. The focal lamp has a lower reservoir without mechanism, and a burner with two wicks for mineral oil. It carries a plain or col- oured glass chimney, according to circumstances, and can be replaced by a lamp with one wick, if only a mo- derate intensity is required.
What to read after Universal Exhibition At Philadelphia 1876 Notices On the Models Charts Draw?
You can find similar books in the "Read Also" column, or choose other free books by France Ministre Des Travaux Publics to read onlineMoreLess
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