Apparatus for detaching platelets which are adhering to a strip

Claim 2

Apparatus for detaching platelets which are adhering to a strip or ribbon, for the purpose of transferring the platelets to another support, more particularly for the production of originals for printed circuits, comprising a holder for the ribbon wound to form a ribbon coil and a deflecting edge on the holder, over which the ribbon withdrawn from the ribbon spool is guided and as a result is deflected through about 180* the platelets being arranged on that side of the ribbon which is directed away from the deflecting edge and are largely detached from the ribbon in passing over the deflecting edge, because of their inherent rigidity, characterized by a transport mechanism to be manually actuated on the holder which comprises a driver element which, with the actuation of the transport mechanism, presses a part of the ribbon already drawn off the ribbon spool against a slide surface on the holder and so displaces it on the said surface that another section of the ribbon is drawn off the ribbon spool and further characterized in that the transport mechanism is formed by a transport lever which is pivotable on the holder about a pivot shaft at a mid part of the lever to provide an upper lever arm for manual actuation and a lower lever arm mounting the driver element, said driver element having an upper end pivotally mounted on the lower lever arm about a pivot shaft which is parallel to the pivot axis of the transport lever and having a lower cutting edge which is disposed so that the angle formed between the cutting edge and the plane of the slide surface for the ribbon is an acute angle facing in the direction of ribbon movement over the slide surface.

Claim 3

Apparatus according to claim 1 characterized in that the driver element comprises a toothed cutting edge.

Claim 4

Apparatus according to claim 1, characterized in that the holder is provided with a resilient retainer member which is arranged above the slide surface before the driver element when seen in the direction of advance of the ribbon and tends to prevent any upward bulging of the ribbon running on the slide surface with the return movement of the dirver element after completing a feeding stroke.

Claim 5

APPARATUS FOR DETACHING PLATELETS WHICH ARE ADHERING TO A STRIP OR RIBBON, FOR THE PURPOSE OF TRANSFERRING THE PLATELETS TO ANOTHER SUPPORT, MORE PARTICULARLY FOR THE PRODUCTION OF ORIGINALS FOR PRINTED CIRCUITS, COMPRISING A HOLDER FOR THE RIBBON WOUND TO FORM A RIBBON COIL AND A DEFLECTING EDGE ON THE HOLDER, OVER WHICH THE RIBBON WITHDRAWN FROM THE RIBBON SPOOL IS GUIDED AND AS A RESULT IS DEFLECTED THROUGH ABOUT 180*, THE PLATELETS BEING ARRANGED ON THAT SIDE OF THE RIBBON WHICH IS DIRECTED AWAY FROM THE DEFLECTING EDGE AND ARE LARGELY DETACHED FROM THE RIBBON IN PASSING OVER THE DEFLECTING EDGE, BECAUSE OF THEIR INHERENT RIGIDITY, CHARACTERIZED BY A TRANSPORT MECHANISHM TO BE MANUALLY ACTUATED ON THE HOLDER WHICH COMPRISES A DRIVER ELEMENT WHICH, WITH THE ACTUATION OF THE TRANSPORT MECHANISM, PRESSES A PART OF THE RIBBON ALREADY DRAWN OFF THE RIBBON SPOOL AGAINST A SLIDE SURFACE ON THE HOLDER AND SO DISPLACES IT ON THE SAID SURFACE THAT ANOTHER SECTION OF THE RIBBON IS DRAWN OFF THE RIBBON SPOOL, AND FURTHER CHARACTERIZED IN THAT THE TRANSPORT MECHANISM IS FORMED BY A TRANSPORT LEVER WHICH IS PIVOTABLE ON THE HOLDER ABOUT A PIVOT SHAFT AT A MID PART OF THE LEVER TO PROVIDE AN UPPER LEVER ARM FOR MANUAL ACTUATION AND A LOWER LEVER ARM MOUNTING THE DRIVER ELEMENT, THE RIBBON SPOOL BEING ARRANGED IN A BOXSHAPED HOUSING, WHICH IS PROVIDED WITH A PASSAGE SLOT FOR THE RIBBON WHICH IS DRAWN OFF, CHARACTERIZED IN THAT A COILED TORSION SPRING EXTENDS AROUND THE PIVOT SHAFT OF THE TRANSPORT LEVER AND OF WHICH A PROJECTING END BEARS AGAINST THE END OF THE TRANSPORT LEVER, WHILE ITS OTHER PROJECTING END BEARS ON THE RIBBON SPOOL HOUSING AND HOLDS THE LATTER IN THE HOLDER.

Claim 6

APPARATUS FOR DETACHING PLATELETS WHICH ARE ADHERING TO A STRIP OR RIBBON, FOR THE PURPOSE OF TRANSFERRING THE PLATELETS TO ANOTHER SUPPORT, MORE PARTICULARLY FOR THE PRODUCTION OF ORIGINALS FOR PRINTED CIRCUITS, COMPRISING A HOLDER FOR THE RIBBON WOUND TO FORM A RIBBON COIL AND A DEFLECTING EDGE ON THE HOLDER, OVER WHICH THE RIBBON WITHDRAWN FROM THE RIBBON SPOOL IS GUIDED AND AS A RESULT IS DEFLECTED THROUGH ABOUT 180*, THE PLATELETS BEING ARRANGED ON THAT SIDE OF THE RIBBON WHICH IS DIRECTED AWAY FROM THE DEFLECTING EDGE AND ARE LARGELY DETACHED FROM THE RIBBON IN PASSING OVER THE DEFLECTING EDGE, BECAUSE OF THEIR INHERENT RIGIDITY, CHARACTERIZED BY A TRANSPORT MECHANISHM TO BE MANUALLY ACTUATED ON THE HOLDER WHICH COMPRISES A DRIVER ELEMENT WHICH, WITH THE ACTUATION OF THE TRANSPORT MECHANISM, PRESSES A PART OF THE RIBBON ALREADY DRAWN OFF THE RIBBON SPOOL AGAINST A SLIDE SURFACE ON THE HOLDER AND SO DISPLACES IT ON THE SAID SURFACE THAT ANOTHER SECTION OF THE RIBBON IS DRAWN OFF THE RIBBON SPOOL, AND FURTHER CHARACTERIZED IN THAT THE TRANSPORT MECHANISM IS FORMED BY A TRANSPORT LEVER WHICH IS PIVOTABLE ON THE HOLDER ABOUT A PIVOT SHAFT AT A MID PART OF THE LEVER TO PROVIDE AN UPPER LEVER ARM FOR MANUAL ACTUATION AND A LOWER LEVER ARM MOUNTING THE DRIVER ELEMENT, THE RIBBON SPOOL BEING ARRANGED IN A BOXSHAPED HOUSING, WHICH IS PROVIDED WITH A PASSAGE SLOT FOR THE RIBBON WHICH IS DRAWN OFF, CHARACTERIZED IN THAT A COILED TORSION SPRING EXTENDS AROUND THE PIVOT SHAFT OF THE TRANSPORT LEVER AND OF WHICH A PROJECTING END BEARS AGAINST THE END OF THE TRANSPORT LEVER, WHILE ITS OTHER PROJECTING END BEARS ON THE RIBBON SPOOL HOUSING AND HOLDS THE LATTER IN THE HOLDER.

Claim 7

Apparatus according to claim 4, in which at least one side of the ribbon spool housing is made flat, characterized in that the ribbon spool housing rests with the said flat side on the ribbon travelling on the slide surface, and that the other projecting end of the coiled torsion spring presses against that side of the ribbon spool housing which is opposite the said flat side.

Claim 8

Apparatus for detaching platelets which are adhering to a strip or ribbon, for the purpose of transferring the platelets to another support, more particularly for the production of originals for printed circuits, comprising a holder for the ribbon wound to form a ribbon coil and a deflecting edge on the holder, over which the ribbon withdrawn from the ribbon spool is guided and as a result is deflected through about 180*, the platelets being arranged on that side of the ribbon which is directed away from the deflecting edge and are largely detached from the ribbon in passing over the deflecting edge, because of their inherent rigidity, characterized by a transport mechanism to be manually actuated on the holder which comprises a driver element which, with the actuation of the transport mechanism, presses a part of the ribbon already drawn off the ribbon spool against a slide surface on the holder and so displaces it on the said surface that another section of the ribbon is drawn off the ribbon spool and further characterized in that the slide surface is formed by the inside of a side wall belonging to the holder and that the deflecting edge is formed by a first wire which is tensioned transversely of the ribbon-feeding direction in a recess formed on one end of the side wall, the holder being adapted to be mounted with the outside of this side wall on the support to which the platelets are to be transferred.

Claim 9

Apparatus for detaching platelets which are adhering to a strip or ribbon, for the purpose of transferring the platelets to another support, more particularly for the production of originals for printed circuits, comprising a holder for the ribbon wound to form a ribbon coil and a deflecting edge on the holder, over which the ribbon withdrawn from the ribbon spool is guided and as a result is deflected through about 180*, the platelets being arranged on that side of the ribbon which is directed away from the deflecting edge and are largely detached from the ribbon in passing over the deflecting edge, because of their inherent rigidity, characterized by a transport mechanism to be manually actuated on the holder which comprises a driver element which, with the actuation of the transport mechanism, presses a part of the ribbon already drawn off the ribbon spool against a slide surface on the holder and so displaces it on the said surface that another section of the ribbon is drawn off the ribbon spool and further characterized in that the slide surface is formed by the inside of a side wall belonging to the holder and that the deflecting edge is formed by a first wire which is tensioned transversely of the ribbon-feeding direction in a recess formed on one end of the side wall, the holder being adapted to be mounted with the outside of this side wall on the support to which the platelets are to be transferred.

Claim 10

Apparatus according to claim 6, characterized in that a second wire is tensioned in the recess parallel to the first wire, and that the ribbon to which platelets are attached and which is drawn off the ribbon spool is guided from above the slide surface beneath the second wire, around the first wire, once again beneath the second wire and through on to the slide surface, that section of the ribbon extending from the second wire to the first wire forming beneath the second wire an acute angle with that section of the ribbon which is running from the first wire to the second wire.

Claim 11

Apparatus according to claim 6, characterized in that the holder has provided thereon a pivotable stirrup member movable between a first, lower position parallel to the first wire and a second, upper position removed from the first wire, the free end of which is so arranged that it extends, in a pivoted position of the stirrup, approximately parallel to the first wire on its side remote from the second wire, and that the distance between the free end of the stirrup and the first wire is so chosen that the platelets which are detached from the ribbon, when the latter is running around tha first wire, are deposited on the free end of the stirrup.

Claim 12

Apparatus according to claim 6, characterized in that an adapter is provided which can be fitted on that end of the side wall which is formed with the recess, said adapter comprising a mounting surface for the platelets which are detached from the ribbon when the latter runs around the first wire, and that the said surface is formed with a hole.

Claim 13

Apparatus according to claim 9, characterized in that the mounting surface consists of silicone rubber.

Claim 14

Apparatus for detaching platelets which are adhering to a strip or ribbon, for the purpose of transferring the platelets to another support, more particularly for the production of originals for printed circuits, comprising a holder for the ribbon wound to form a ribbon coil and a deflecting edge on the holder, over which the ribbon withdrawn from the ribbon spool is guided and as a result is deflected through about 180*, the platelets being arranged on that side of the ribbon which is directed away from the deflecting Edge and are largely detached from the ribbon in passing over the deflecting edge, because of their inherent rigidity, characterized by a transport mechanism to be manually actuated on the holder which comprises a driver element which, with the actuation of the transport mechanism, presses a part of the ribbon already drawn off the ribbon spool against a slide surface on the holder and so displaces it on the said surface that another section of the ribbon is drawn off the ribbon spool and further characterized in that the holder is formed with a hole which is in alignment with the central ribbon spool hole when the ribbon spool and the ribbon spool housing are in the inserted position, so that the tip of the thumb of the hand with which the apparatus is to be actuated can be inserted through both holes and the transporting means can be actuated with the remaining fingers.

Claim 15

Apparatus for detaching platelets which are adhering to a strip or ribbon, for the purpose of transferring the platelets to another support, more particularly for the production of originals for printed circuits, comprising a holder for the ribbon wound to form a ribbon coil and a deflecting edge on the holder, over which the ribbon withdrawn from the ribbon spool is guided and as a result is deflected through about 180*, the platelets being arranged on that side of the ribbon which is directed away from the deflecting Edge and are largely detached from the ribbon in passing over the deflecting edge, because of their inherent rigidity, characterized by a transport mechanism to be manually actuated on the holder which comprises a driver element which, with the actuation of the transport mechanism, presses a part of the ribbon already drawn off the ribbon spool against a slide surface on the holder and so displaces it on the said surface that another section of the ribbon is drawn off the ribbon spool and further characterized in that the holder is formed with a hole which is in alignment with the central ribbon spool hole when the ribbon spool and the ribbon spool housing are in the inserted position, so that the tip of the thumb of the hand with which the apparatus is to be actuated can be inserted through both holes and the transporting means can be actuated with the remaining fingers.