Coin transfer lock

Claim 1

A CHECK OPERATED LOCK FOR A LOCKABLE DOOR IN A DOOR FRAME, SAID LOCK COMPRISING IN COMBINATION, A LOCK HOUSING, MEANS TO MOUNT SAID LOCK HOUSING ON SAID DOOR, A LATCH BOLT MOVABLY CARRIED IN SAID LOCK HOUSINNG AND HAVING FIRST AND SECOND POSITIONS WITH ONE OF SAID POSITIONS BEING AN UNLATCHED POSITION PERMITTING OPENING OF SAID DOOR AND THE OTHER BEING A LATCHED POSITION PREVENTINNG OPENING OF THE DOOR, MEANS TO ACTUATE SAID LATCH BOLT BETWEEN SAID POSITIONS ABUTMENT MEANS ACTING BETWEEN SAID HOUSING AND SAID ACTUATING MEANS UPON INITIAL MOVEMENT OF SAID ACTUATING MEANS IN ATTEMPTING TO MOVE SAID LATCH BOLT FROM SAID FIRST TOWARD SAID SECOND POSITION TO PREVENT MOVEMENT OF SAID LATCH BOLT TO SAID SECOND POSITION, A CHECK POCKET IN SAID LOCK HOUSINNNG, THE PRESENCE OF A CHECK IN SAID CHECK POCKET ACTING TO INVALIDATE SAID ABUTMENT MEANS TO PERMIT MOVEMENT OF SAID LATCH BOLT TO SAID SECOND POSITION, AND MEANS EFFECTING TRANSFER OF THE CHECK IN SAID CHECK POCKET INTO SAID DOOR FRAME UPON MOVEMENT OF SAID