Automatic railroad switch light

Claim 1

IN A GROUND LEVEL RAILROAD SWITCH LIGHT ASSEMBLY THAT INCLUDES A BATTERY STORAGE BOX HAVING AN OPEN TOP, A BATTERY WITHIN THE BOX, A COVER REMOVABLY MOUNTED ON THE BOX IN CLOSURE RELATION TO THE TOP AND HAVING A FLAT UPPER SURFACE, A GLOBE-LIKE LAMP HOUSING MOUNTED ATOP SAID COVER AND HAVING TRANSLUCENT WINDOWS FACING HORIZONTALLY AT POINTS SPACED ABOUT A VERTICAL AXIS THROUGH SAID HOUSING, SAID HOUSING, HAVING OPAQUE SIDE AND TOP WALL STRUCTURE OF CONVEXLY ROUNDED CONTOUR BRIDGING BETWEEN, AROUND, AND BENEATH SAID WINDOWS, MEANS FOR ROTATING SAID BOX ABOUT SAID AXIS FOR SELECTIVELY POSITIONING SAID WINDOWS IN ACCORDANCE WITH TRACK SWITCH POSITIONS, A LAMP WITHIN SAID HOUSING, AND ELECTRICAL CONDUCTORS CONNECTED TO THE BATTERY AND EXTENDING INTO THE HOUSING FOR CONNECTING TO THE LAMP; AN AUTOMATIC CONTROL ARRANGEMENT FOR ENERGIZING SAID LAMP ONLY DURING THE EXISTENCE OF A PREDETERMINED CONDITION OF AMBINET DARKNESS AND COMPRISING A CIRCUIT FOR COMPLETING A CONNECTION BETWEEN SAID BATTERY AND SAID LAMP THROUGH SAID ELECTRICAL CONDUCTORS; A LIGHG TRANSMITTING WINDOW SPANNING AN INTERRUPTED PORTION OF SAID OPAQUE WALL STRUCTURE AT A REGION OF SAID HOUSING THAT HAS A NORMAL LINE DIRECTD OBLIQUELY DOWNWARDLY AND OUTWARDLY RELATIVE TO THE VERTICAL AXIS, A PHOTOCELL MOUNTED WITHIN SAID HOUSING AND HAVING A LIGHT SENSITIVE FACE SHIELDED FROM ILLUMINATION INTERNAL OF THE HOUSING AND IMAGED THROUGH SAID LAST NAMED WINDOW ONLY ALONG A LINE THAT EXTENDS OBLIQUELY DOWNWARDLY AND OUTWARDLY RELATIVE TO SAID AXIS AND THAT INTERCEPTS A PORTION OF SAID FLAT UPPER SURFACE, AND MEANS CONNECTING SAID PHOTOCELL IN CONTROLLING RELATION IN SAID CIRCUIT TO INTERRUPT SUCH CONNECTION UNLESS SAID PREDETERMINED CONDITION OF AMBIENT DARKNESS EXISTS.