Bauhaus-Universität Weimar

Titel:
Optic Projection: Principles, Installation and Use of the Magic Lantern, Projection Microscope, Reflecting Lantern, Moving Picture Machine
Person:
Gage, Henry Simon and Henry Phelps Gage
PURL:
https://digitalesammlungen.uni-weimar.de/viewer/image/lit39438/127/
CHAPTER V 
MAGIC LANTERN WITH PETROLEUM LAMP; VERTICAL 
AND REFLEX MANTLE GAS LAMPS; ACETYLENE 
LAMP; ALCOHOL LAMP WITH MANTLE 
§ 190. Apparatus and Material for Chapter V : 
Suitable projection room with screen; Magic lantern with lamp 
and chimney for petroleum (fig. 65-67) ; High grade petroleum for 
burning in the lamp; Gas burners for vertical and reflex mantles 
(fig. 68-69); Illuminating gas supply; Acetylene burner and 
reflector, (fig. 70) ; Acetylene gas supply (house supply, prestolite 
tank of compressed acetylene in acetone or an acetylene generator) ; 
Special alcohol lamp with mantle (fig. 72-73); Strong alcohol 
(95%) ethyl, methyl or denatured. The magic lantern for all but 
the oil lamp must have a lamp-house into which the burner can be 
placed. There must be lantern slides, screw drivers, pliers and 
matches or safety lighters (§ 160), for all of them. 
§ 191. Historical development and references to literature.— 
For the history see the Appendix, and for general works of reference 
see the list of books in the first chapter (§2). 
The directions sent out by the manufacturers of these light 
sources should be studied carefully and followed exactly unless one 
has technical knowledge on the subject. 
Oil and Gas Lamps 
§ 192. Early sources of light.—For a long time after the inven¬ 
tion of projection apparatus there were but two sources of light 
known : 
(1) The sun, which has ever remained the most brilliant source 
of light available, and 
(2) Some form of torch, candle, or oil lamp. 
The first oil lamps burned animal or vegetable oil and had no 
lamp chimney. 
After the discovery and proper refinement of petroleum, that 
became and has remained the oil most used for illumination. 
If one reads the early works on projection it seems astonishing 
that the workers of those times were able to produce screen images
        

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