Conveyor systems

Claim 1

A CONVEYOR SYSTEM OF THE KIND SPECIFIED CHARACTERISED BY THE PROVISION OF A CARRIER TRACK, A PLURALITY OF WORK STATIONS SPACED APART ALONG THE LENGTH OF THE CARRIER TRACK, CARRIER ARRESTING MEANS AT EACH OF SAID WORK STATIONS DISPLACEABLE BETWEEN CARRIER ARRESTING AND CARRIER ADVANCING POSITIONS, A CARRIER OPERATED CONTROL MEANS LOCATED IN ADVANCE OF EACH OF SAID WORK STATIONS AND ADAPTED TO BE ACTUATED BY THE PASSAGE OF A CARRIER ALONG THE TRACK, EACH OF SAID CONTROL MEANS COMPRISING A CARRIER ARRESTING CONTROL MEMBER AND A CARRIER RELEASE CONTROL MEMBER OPERATIVELY CONNECTED RESPECTIVELY TO THE CARRIER ARRESTING MEANS OF THE NEXT IN-REAR AND NEXT BUT ONE IN REAR WORK STATION, THE ARRANGEMENT BEING SUCH THAT ADVANCE OF A CARRIER ALONG THE TRACK TO ONE OF SAID CONTROL MEANS TO A STATION OPERATES ONE OF THE SAID CARRIER ARRESTING CONTROL MEMBERS THEREOF TO EFFECT DISPLACEMENT OF THE ASSOCIATED ARRESTING MEANS AT THE WORK STATION NEXT IN REAR OF SAID CONTROL MEANS FROM A CARRIER ADVANCING TO A CARRIER ARRESTING POSITION TO PRECLUDE THE ADVANCEMENT OF A FURTHER CARRIER BEYOND SAID NEXT IN-REAR WORK STATION, AND ALSO OPERATES THE CARRIER RELEASE CONTROL MEMBER OF SAID CONTROL MEANS TO EFFECT DISPLACEMENT OF THE ASSOCIATED CARRIER ARRESTING MEANS OF THE WORK STATION NEXT BUT ONE IN-REAR OF SAID CONTROL MEANS FROM THE CARRIER ARRESTING TO THE CARRIER ADVANCING POSITION SO AS THEREBY TO PERMIT OF THE ADVANCE OF A FURTHER CARRIER FROM SAID NEXT BUT ONE INREAR WORK STATION TO SAID NEXT IN-REAR CONTROL MEANS.