US 3525657 A
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Aug. 25, 1970 J.-SVEC 3,525,657
DE'VUIE FOR REPAIRING PUNCH TAPE Filed Nov. 27, 1967 INVENTOR.
JGPOSIGV S his A fforncy Unitfid States US. Cl. 156-521 Claims ABSTRACT OF THE DISCLOSURE A device for repairing a punch tape card, or the like, at holes thereof which have been erroneously made. A guide guides the punch tape for longitudinal movement, so that a selected transverse row of holes which have been incorrectly punched can be situated at a selected location, this transverse row of holes being interrupted between its ends by a longitudinally extending row of guide holes of the punched tape. A punch guide is situated over the tape guide and is formed with an elongated slot extending transversely of the tape and having a length and width greater than the greatest possible length and width of the incorrect transverse row of holes which is aligned with this slot. The punch guide has, intermediate the ends of its slot a bridge portion extending across the slot and situated over the row of guide holes of the punch tapes so as to divide the slot into a pair of elongated openings with which the punch openings of the transverse row on opposite sides of the longitudinal row of guide holes are aligned. A pair of punches are situated over the punch guide and have a configuration matching that of its openings so as to be guided through these openings toward the punch tape, and an actuating means coacts with the punches to advance them along a working stroke through the openings of the punch guide toward the tape. An adhesive strip is situated between the punches and the punch guide means so that when the actuating means advances the punches along their working stroke the punches will cut from the adhesive strip portions matching the configurations of the holes of the punch guide means, these portions of the adhesive strip being advanced by the punches into engagement with the punch tape to adhere to and cover the punch tape at the row of incorrect openings extending transversely thereof, while leaving the guide holes uncovered.
BACKGROUND OF THE INVENTION The invention relates to a device for repairing incorrectly punched punch tapes, punch cards or other information carriers.
The repair of an improperly punched punch tape is carried out in general in such a way that the incorrectly punched portion of the tape is cut out and at this location a punched tape portion having the correctly punched combination of holes is glued to the punch tape. Another known repairing method is carried out in such a way that the incorrect combination of punched holes is covered by an adhesive strip and the proper combination of holes is then manually punched in the tape. In recent times it has been known to provide a guide for the punch tape with a punch guide situated over the punch tape and formed with a row of punch-guiding openings the diameters of which are greater than the openings punched in the tape itself. Over this latter punch guide is situated a second guide and an adhesive strip is situated between the pair of punch guides. By way of a hand punch an adhesive sheet material is cut out over the improper punched openings and with a special punch this is pressed against the punched tape to cover the improper holes thereof.
3,525,657 Patented Aug. 25, 1970 All of these known devices for repairing improperly punched tapes have the disadvantage of requiring an undesirably large operating time and are not convenient to operate.
SUMMARY OF THE INVENTION It is accordingly a primary object of the invention to provide a device which will avoid the above drawbacks.
In particular, it is an object of the invention to provide a relatively inexpensive simple device which can be very conveniently operated in an extremely short time in order to carry out the required correction of an erroneously punched tape.
Also it is an object of the invention to provide a device of this type which will not damage the tape itself while at the same time being capable of reliably repairing the same.
In accordance with the invention, a tape guide means for longitudinally guiding the punch tape has located thereover a punch guide means for guiding punches toward the tape. The tape guide means guides the tape longitudinally until an erroneously punched transverse row of holes thereof is aligned with an elongated slot which is formed in the punch guide means, and this slot is interrupted intermediate its ends by a bridge portion of the punch guide means which is aligned with a longitudinal row of guide holes of the punch tape so that in this way the bridge portion of the punch guide means divides the slot of the latter into elongated openings situated on opposite sides of the longitudinal row of guide holes of the punch tape. These openings have a length and width greater than the greatest possible length and width of the transverse row of punched holes of the tape, and there is situated over the guide openings a pair of punches which match the configuration of the guide openings so as to be guided thereby during movement toward the punch tape. An actuating means carried the punches for displacing the latter along a working stroke through the guide openings toward the tape, and a supply means that supplies a length of adhesive strip between the punches and the punch guide means so that when the punches are advanced toward the tape they w ll cut from the adhesive strip portions which will match the configuration of the openings of the punch guide means to be advanced therethrough into adhering engagement with the punch tape covering erroneous openings thereof. The punch guide means and the actuating means which carries the punches are preferably in the form of a' pair of levers supported for movement about a common axis of a support means, this latter axis extending parallel to the direction in which the tape is guided by the tape guide means, and the actuating lever which carries the punches also carries a support for a spool of adhesive strip which is guided around a suitable guide roller to the space between the punches and the punch guide means. A limiting means is carried by the punch guide means to limit the working stroke of the actuating means so as to prevent the punches from damaging the punch tape itself.
The advantages of the device of the invention reside in the fact that the spool of adhesive strip is situated directly on the device itself, thus providing an extremely convenient handling of the device. Also, the covering of an erroneous transverse row of punch openings is carried out with a single actuation of the lever which carries the punches, and the punch guide means need only be provided with a pair of longitudinal punch guiding openings so that it can be less expensively manufactured than in the case of a punchv guide which must be provided with an entire row of openings.
3 BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated by way of example of the accompanying drawings which show one possible embodiment of a device according to the invention and in which:
FIG. 1 is a transverse sectional elevation of a struc- DESCRIPTION OF A PREFERRED EMBODIMENT Referring now to the drawings, there is shown therein a base plate 1 which fixedly carries a base 2 of the device of the invention, and this base 2 in turn carries the tape guide means 3 which has an upper surface formed with an elongated, relatively wide groove for receiving and guiding the punch tape 4 so as to guide the latter for longitudinal movement. This base 2 which carries the tape guide means 3 also carries at one side of the latter a pair of upwardly directed support members 5 which form together with a longitudinally extending pin 6 carried thereby and with the base member 2 a support means for the structure.
This pin 6 which extends between and is carried by the upwardly directed members 5, which are fixed to the member 2, supports for turning movement a punch guide means 7 in the form of a plate which has formed therein an elongated slot extending transversely of the tape 4. The punch guide means 7 is formed between the ends of the slot with a bridge portion dividing the slot into a pair of elongated openings and 11, and it will be noted from the drawings that this bridge portion is aligned with the row of guide holes 13 of the punch tape. The length and width of the slot which is divided into the openings 10 and 11 is greater than the greatest possible length and width of any transverse row of openings 12 formed in the punch tape 4, so that an erroneous transverse row of these openings can be aligned with and rendered accessible through the openings 10 and 11 while the row of guide openings 13 will be covered by the bridge portion of the punch guide means. Thus, the openings 12 on one side of the guide openings 13 will be accessible through the opening 10 and the holes 12 on the other side of the guide holes 13 will be accessible through the opening 11 in all cases.
A punch actuating means is formed by a lever 8 which is also supported for turning movement by pin 6 of the support means, this lever 8 having a handle 9 so that the punch actuating means is manually operable. A pair of punches 16 and 17 are fixedly carried by the lever 8 for turning movement therewith, so that these punches are actuated by the actuating means 8, and the length and configuration of the punches 16 and 17 conforms to the length and configuration of the openings 10 and 111 so that the punches .16 and 17 will be guided in these openings 10 and 11 during movement therethrough toward the tape 4. Thus, with this arrangement it becomes possible to align with the openings 10 and 11 a transverse row of holes 12 which is to be covered, and of course, the punches 16 and 17 are in precise alignment with the openings 10 and 11 to be guided downward therethrough into covering relationship with respect to the selected transverse row of holes 12. Thus, the longitudinal axis of the punches 16 and 17 and openings 10 and 11 will be in a common plane while the transverse axes of the punches 16 and 17 and the openings 10 and 11, which extend parallel to the tape 4, will also become aligned with each other respectively.
A limiting means is provided for limiting the advance of the punches 16 and 17 toward the tape 4, and this limiting means takes the form of a pair of pins 14 fixed to and extending upwardly from the punch guide plate 7, these pins 14 being stepped at their upper ends so as to have inner upwardly directed surface portions 15 situated in the path of downward movement of the handle portion 9 of the lever 8 so as to engage the actuating means and limits its downward movement toward the guide 3.
The lever 8 has a pair of side flanges extending up: wardly from the opposed side edge portions thereof, and these flanges carry a pair of supports 18 and 19 for a spool 20 of adhesive strip material 21, this spool being supported for turning movement on a pin which extends through the space between and is carried by the supports 18 and 19. At its rear end the side flanges of the lever 8 carry a pin on which a guide roller 22 for the adhesive strip 21 is mounted, and the strip 21 can issue from the spool 20 around the guide roller 22 and into the space between the punches 16 and 17, on the one hand, and the punch guide openings 10 and 11, on the other hand.
In order to repair a selected transverse row of holes of a punch tape, the tape is guided in the tape guide means 3 until the selected erroneous transverse row of holes 12 is aligned with the openings 10 and 11, as described above. The swingable punch guide means 7 is swung down toward the punch tape and a length of adhesive strip 21 is unwound from the spool 20, the non-adhesive side of the strip 21 engaging the guide roller 22 and being directed upwardly away from the punch guide 7. When a length of adhesive strip 21 is situated in this space between the openings 10 and 11, on the one hand, and the punches 16 and 17, on the other hand, the lever 8 is depressed by the operator, who engages the handle 9 for this purpose, and portions of the adhesive strip 21 which conform to the configurations of the openings 10 and 11 are cut from the strip 21 by the punches 16 and 517 and are advanced.
thereby respectively through the openings 10 and 11 downwardly into engagement with the tape 4 so as to adhere thereto, covering the erroneous transverse row of holes 12. The pressure which can be applied to the punches 16 and 17 and with which the latter engage the punch tape itself is limited by engagement of the actuating means with the limiting pins 14 at the surfaces 15 thereof, so that any possible tearing of the tape itself is prevented. After the lever 8 has been turned upwardly to its rest position a new length of adhesive strip 21 can be unwound, and the punch tape then can be advanced further so that there will become located beneath the openings 10 and 11 of the punch guide means 7 a possible further erroneous transverse row of holes which can again be repaired in the manner described above.
Thus, with the above-described invention it is possible to repair tapes having any numbers of longitudinally extending rows of holes 12 which form transverse rows in the manner described above. Tapes or even punch cards having five or more longitudinally extending rows of information holes arranged in a selected manner transversely of the tape can be repaired with the structure of the invention as long as any selected transverse row of holes has a size small enough to be encompassed by the openings 10 and 11.
What is claimed is:
1. In a punch tape repairing device, tape guide means for longitudinally guiding a punch tape which is to be repaired at a transverse row of incorrect punch holes inter-- rupted by an intermediate longitudinally extending row of guide holes formed in the tape, punch guide means situated over said tape guide means and formed with an elongated slot extending transversely of the tape so that the incorrect transverse row of punch holes thereof can be aligned with said slot of said punch guide means, said punch guide means having a bridge portion extending across said slot intermediate the ends thereof for covering only said longitudinal row of guide holes of the tape and said slot having a length and width greater than the greatest possible length and width of a transverse row of punch holes of the tape, so that the punch holes thereof on both sides of the row of guide holes will be exposed through a pair of openings of the punch guide means defined by said bridge portion and the opposed ends of said slot, a pair of punches respectively aligned with said openings to be guided through said openings of said punch guide means toward said tape, actuating means coacting with said punches for displacing the latter through said openings toward the tape, and adhesive strip guide means for guiding an adhesive strip between said punches and said punch guide means so that when said punches are actuated by said actuating means said punches will cut from the adhesive strip portions thereof having the configuration of said openings to press said portions against the punch tape over the incorrect openings thereof.
2. The combination of claim 1 and wherein a support means supports said punch guide means for movement to and from a guiding position situated next to said tape guide means.
3. The combination of claim 2 and wherein said support means supports said punch guide means for swinging movement toward and away from said tape guide means about an axis extending parallel to the direction in which the punch tape is longitudinally guided by said tape guide means.
4. The combination of claim 2 and wherein said actuating means carries said punches and said support means also supporting said actuating means with said punches carried thereby for movement along a punching stroke where said punches are directed through said openings and back along a return stroke to a rest position where said punches are spaced from said punch guide means so that an additional length of adhesive strip can then be situated between said punches and punch guide means.
5. The combination of claim 4 and wherein said support means supports both said actuating means and said punch guide means for swinging movement about a common axis which extends parallel to the direction in which said tape guide means guides said punch tape.
6. The combination of claim 5 and wherein said actuating means carries a supply means for supplying an adhesive strip to the space between said punches and punch guide means.
7. The combination of claim 6 and wherein said supply means includes a spool support for supporting a spool of adhesive strip for rotary movement and a guide roller around which the adhesive strip is guided from the spool to the space between said punches and punch guide means.
8. The combination of claim 1 and wherein a limiting means coacts with said actuating means for limiting the advance of the punches through said openings of said punch guide means toward the punch tape to an extent which will provide reliable adherence of the cut portions of the adhesive strip to the punch tape without the possibility of damaging the punch itself with said punches.
9. The combination of claim 8 and wherein said limiting means is in the form of a pair of limiting pins having stop surfaces which engage said actuating means to limit the stroke thereof during which said punches are advanced through said openingsof such punch guide means.
10. The combination of claim 9 and wherein a support means carries said punch guide means and actuating means for swinging movement about a common axis extending parallel to the direction which the punch tape is guided by said tape guide means, said limiting means being carried by said punch guide means in the path of movement of the actuating means and said actuating means being in the form of manually turnable lever carrying said punches.
References Cited UNITED STATES PATENTS 2,295,903 9/1942 Kennedy 156-261 X 2,819,656 1/1958 Patterson 93-1 2,869,748 1/1959 Nerwin et a1 156-514 X BENJAMIN A. BORCHELT, Primary Examiner J. M. HANLEY, Assistant Examiner U. S. Cl. X.R. 15 6-26 1