Inside Out Library · Explore

Scientific American, Vol. 101, No. 12 (September 1909) (1909)

leaf 3

An illustration from Scientific American, Vol. 101, No. 12 (September 1909), 1909, leaf 3
s with a new system avoided, only one being fired for each train. warning, and the last cartridge be fired, the whole of the signaling arrangements are interrupted by Should the line be clear, the apparatus is cut out of signaling in fogs, a system which is the invention of action, and no signal is… … trolled by a pulley and counter- AN AUTOMATIC FOG-SIGNALING APPARATUS FOR RAILROADS. from some danger to the crew. weight, which is wound up like the As it is, none of these methods weights of a clock, and which will make one revolution of the wheel clockwise. This only when the signal arm is at…

Apparatus · Pole · Patents · Munn · North Pole · Scientific American · Sheet metal · Producer gas · Latin America · Gas engines · Horizontal rudder · Triple action · Hot water · Practical treatise

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 101, No. 12 (September 1909)

More like this