Backlight crescent.
The above image is for reference purposes only!
permission to use the information was obtained
for educational and historic purpose.
Image shows a crescent atop a oil font in which
a three inch corrugated lens that reflects forward light but will also directs light from flame into
the back of a semaphore lamps backlight.
*** Added note Adams and Westlake fig 2699 in railway signalling dictionary.
comparable to image above.
other same principle of holding reflector by two spring clips
holding sides of prism reflector by Dressel works .
a easy fabrication and soldering ability to do
as tin sheet is still available.
a ebay contact came through with some great information.
if you like early railroad stuff give him a look.
very fast delivery a unexpected stuff .
i bought two 2 inch bullseyes and two 3 3/8 reducing lenses .
just what i needed .
www.ebay.com/itm/1-RAILROAD-RR-RAILWAY-SIGNAL-LANTERN-LAM...
Backlight crescent.
The above image is for reference purposes only!
permission to use the information was obtained
for educational and historic purpose.
Image shows a crescent atop a oil font in which
a three inch corrugated lens that reflects forward light but will also directs light from flame into
the back of a semaphore lamps backlight.
*** Added note Adams and Westlake fig 2699 in railway signalling dictionary.
comparable to image above.
other same principle of holding reflector by two spring clips
holding sides of prism reflector by Dressel works .
a easy fabrication and soldering ability to do
as tin sheet is still available.
a ebay contact came through with some great information.
if you like early railroad stuff give him a look.
very fast delivery a unexpected stuff .
i bought two 2 inch bullseyes and two 3 3/8 reducing lenses .
just what i needed .
www.ebay.com/itm/1-RAILROAD-RR-RAILWAY-SIGNAL-LANTERN-LAM...