Patent ID: 11919553
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 2:
3. A railroad switch position indicator comprising first and second rotating signals spring biased into a neutral position signaling caution, said first and second signals mounted on first and second driven shafts, respectively, said first and second driven shafts connected to first and second driven sprockets, respectively, said first and second driven sprockets connected by first and second drive trains to first and second drive sprockets respectively, said first and second drive sprockets rotating on a drive shaft configured for connection to switch points, said first and second drive sprockets having first and second arcuate slots with aligned opposing ends in a neutral position respectively, a first and second vertically aligned finger received in the first and second arcuate slots respectively and rotating with the drive shaft, said first and second drive sprockets and said first and second driven sprockets having a gear ratio such that movement of the first finger with the drive shaft carrying the second finger to the end of the second arcuate slot results in a ninety degree rotation of the first signal signaling alignment in a first direction and movement of the second finger with the drive shaft in an opposite direction carrying the first finger to the end of the first arcuate slot results in a ninety degree rotation of the second signal signaling alignment in a second direction.