Electromagnetic relay having removable contact and coil assemblies

Claim 1

AN ELECTROMAGNETIC RELAY COMPRISING, AN INSULATING HOUSING HAVING A CAVITY WITH A RESTRICTED OPEN END OPENING AT SIDE OF THE HOUSING, A PLURAOITY OF FIXED CONTACTS MOUNTED ON SAID HOUSING SIDE CLEAR OF THE OPEN END OF THE CAVITY AND ARRANGED IN TWO PARALLEL SPACED EXPOSED ROWS ON OPPOSITE SIDES OF SAID OPEN END, SAID OPEN END HAVING A PREDETERMINED WIDTH DIMENSION EXTENDING PARALLEL TO THE DIRECTION OF SPACING OF SAID ROWS, A CONTACT CARRIER REMOVABLY MOUNTED BETWEEN SAID SPACED ROWS FOR RECIPROCATION RELATIVE TO SAID FIXED CONTACTS, A PLURALITY OF BRIDGING CONTACTS CARRIED BY THE CARRIER IN SPACED RELATION ALONG ITS LENGTH FOR COOPERATION WITH SAID FIXED CONTACTS, A COIL RELEASABLY SUPPORTED WITHIN SAID CAVITY AND HAVING A PREDETERMINED THICKNESS DIMENSION IN ALIGNMENT WITH AND EXTENDING PARALLEL TO THE WIDTH DIMENSION OF SAID OPEN END, AND A MAGNETIC ARMATURE ASSEMBLY MOUNTED WITHIN THE CAVITY FOR MOVEMENT RELATIVE TO THE HOUSING AND RELEASABLY CONNECTED TO SAID CARRIER TO EFFECT RECIPROCATION THEREOF IN RESPONSE TO ENERGIZATION AND DEENERGIZATION OF THE COIL, THE THICKNESS DIMENSION OF SAID COIL BEING LESS THAN THE WIDTH DIMENSION OF SAID OPEN END SO THAT THE COIL CAN BE INSTALLED AND REMOVED RELATIVE TO THE HOUSING BY MOVEMENT THEREOF INTO AND OUT OF SAID CAVITY THROUGH THE OPEN END WITHOUT DISTRIBUTING SAID FIXED CONTACTS AND SAID HOUSING WHEN SAID CARRIER IS REMOVED FROM THE HOUSING.