Signal Lever Small 175×320 Medium 350×640 Large 560×1024 Download Tiff Original 1312×2400 | (422.2 KB) Description Signal Lever and Interlocking Tappet. F - Floor of Cabin G - Grove for interlocking bar N - Tappet V - Latch rod Keywords rail, simple machine, train Galleries Rail Transportation Source: Fredrick Converse Beach, Editor The Americana: A Universal Reference ( New York: Scientific American, [c1912]) 17:Signal Level
