The sciopticon manual, explaining lantern projection in general, and the sciopticon apparatus in paricular (1877)

Record Details:

Title:
The sciopticon manual, explaining lantern projection in general, and the sciopticon apparatus in paricular
Date:
1877
Publisher:
Philadelphia, J. A. Moore
Volume:
The sciopticon manual, explaining lantern projection in general, and the sciopticon apparatus in paricular
Leaf #:
000168
Language:
English
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Date Added:
July 19, 2022
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SCIOPTICON MANUAL. 159 shape for entering and clearing the flat mouth of the jet. The wooden base-plate" .B, the bottom of which is shown at Fig. 41, holds the nozzle n, which receives into its middle aperture the current of oxygen gas from 0, and into its side aperture either alcohol or hydrogen gas from H. The lime Z/, in its holder P, is let down the open chimney of the Sciopticon and held in place by the socket k, the elon- gated top of which serves as a guide to the stem, a rest for the lime cradle u, and a shield from the alcohol wick. The base-plate of the socket is pushed under the screw-heads, into contact with the nozzle n, and its angle and its height are such as to bring the lime disk into proper position. Fig. 41. The lime disk is I of an inch thick, and 2 inches in diam- eter. It lies loosely in its cradle u, so that lifting the back with the thumb and finger half an inch or so, brings down to the jet a new but hot place in the lime. This operation is not hard on the fingers, because the move is so easily and quickly made, and at a place in the non-conducting lime most distant from the jet. The handle q, turned back from the heated current, gives us control of the lime holder, so it can be let down the Sciopticon chimney into its socket k, Fig. 42. This height is convenient, but not essential in the Lime-light Sciopticon, Fig. 43. For other lanterns the handle is hinged lower, as