We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
SCIOPTICON MANUAL. 161 receive attention in the following pages, in connection with the Lime-light Sciopticon. THE LIME-LIGHT SCIOPTICON. The unrivaled excellence of the Oil-light Sciopticon con- sists in its serving us, not with a lime-light equivalent, but with flame at its brightest, arranged at its best, and in its being always available with but trifling expense and trouble. Without interfering with this special arrangement, an in- tense light may be used in it, as explained on the preceding page; but the distinctive Lime-light Sciopticon, Fig. 43, drops the flame-chamber, and takes on parts peculiar to itself. To have the full advantages of both arrangements, therefore, requires two instruments ; but if the lenses and draw-front are not duplicated, the two involve but little extra cost. (See appended catalogue.) Fig. 43, page 1G8, shows the exterior of the Lime-light Sciopticon, the internal arrangement being indicated by dotted lines. Comparing it with the preceding, or with Fig. 15, page 30, it is seen that the wooden base, the lower and front part of the cylindrical body, the condensing lenses with their peculiar mounting and attachment, the draw- front with hood, opaque curtain, tinters and objective, are precisely the same, and so cull for no further description here. An obvious difference is the absence of the lamp, flame-chamber and chimney, leaving a vacant chamber for the triple jet and the automatic winker. The peculiar cut- off called the winker, and the slide frame, which is an appen- dage of it, will receive attention further on, in closer con- nection with Figs. 43 and 44. TRIPLE JET ADJUSTMENTS. The Triple Jet described page 158, Fig. 40, enters its chamber freely, Fig. 43, and is kept in place with sufficient