Sensitive electric switch

Claim 1

A NORMALLY CLOSED ELECTRIC SWITCH COMPRISING TWO SAUCER-LIKE DISKS OF INSULATING MATERIAL FACING EACH OTHER WITH CONCAVE FACES OPPOSED, ONE OF SAID DISKS HAVING A CIRCULAR SERIES OF HOLES THERETHROUGH, A PIN EXTENDING THROUGH EACH SAID HOLE, EACH SAID PIN HAVING A SHANK LOOSELY FITTING IN THE CORRESPONDING HOLE AND A HEAD OF LARGER DIAMETER THAN THAT OF THE HOLE, THE END OF EACH PIN REMOTE FROM THE HEAD THEREOF BEING SECURED TO THE OTHER SAID DISK, CONTACT ELEMENTS IN SAID ONE DISK MOUNTED IN POSITION TO BE PRESSED AGAINST THE HEADS OF RESPECTIVE PINS BY MOVEMENT OF SAID DISKS AWAY FROM EACH OTHER, SPRING MEANS PRESSING SAID DISKS APART TO HOLD THE HEADS OF SAID PINS YIELDINGLY IN CONTACT WITH RESPECTIVE CONTACT ELEMENTS, TWO LEAD-IN WIRES ENTERING BETWEEN SAID DISKS, AND CONDUCTORS CONNECTING SAID PINS AND CONTACT ELEMENTS IN SERIES WITH SAID LEAD-IN WIRES, WHEREBY RELATIVE MOVEMENT OF ANY PORTION OF ONE DISK TOWARD THE OTHER SEPARATES ONE OF SAID CONTACT ELEMENTS FROM THE CORRESPONDING PIN HEAD, THEREBY OPENING THE SWITCH.