US3696993A - Apparatus for punching record cards or tapes - Google Patents

Apparatus for punching record cards or tapes Download PDF

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Publication number
US3696993A
US3696993A US132828A US3696993DA US3696993A US 3696993 A US3696993 A US 3696993A US 132828 A US132828 A US 132828A US 3696993D A US3696993D A US 3696993DA US 3696993 A US3696993 A US 3696993A
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United States
Prior art keywords
punches
punch
elongated
punching
punching mechanism
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Expired - Lifetime
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US132828A
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English (en)
Inventor
Jacques Roland Deproux
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Bull SA
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Societe Industrielle Honeywell Bull
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/02—Methods or arrangements for marking the record carrier in digital fashion by punching

Definitions

  • ABSTRACT A cyclically operating punching apparatus in which [30] Fore'gn Apphcauon Pnomy Dam each punch of a row can occupy an inactive position Oct. 23, 1968 France ..68171013 in which it is maintained by an electromaghet when the latter is energized, or an active position into which 52 US. Cl. ..234/118 234/33 234/119 h is Pushed by a Spring when the electmmaghet is [51] Int. Cl.
  • the present invention relates to improvement in cyclically operating punching apparatus for perforating record cards or .tapes employed, for example, in machines for the transmission or processing of data, as also for the control of machines or other applications.
  • the selective actuation of a punch is controlled by means of a movable member which is, or is not, interposed between the punch and a continuously moving actuating member, this taking place under the action of a selection control electromagnet, depending upon whether the latter is energized.
  • a selection control electromagnet depending upon whether the latter is energized.
  • the interposed member as a movable member situated between the punch and the actuating members of the latter, is replaced by an arrangement in which one member is adapted to perform both the functions of a punch and the function of an interposed member.
  • a cyclically operating punching apparatus comprises a series of punches of elongate form which are aligned substantially perpendicularly to the direction of advance of a record card or tape, which is advanced step-by-step past a punching die and comprises guide means, including notably a guide plate, which is adapted to maintain the active ends of the punches substantially opposite the corresponding holes in the die and to define the position of the opposite end of the punches in such manner that the latter may occupy a first inoperative position inclined in relation to a plane perpendicular to the die; a series of electromagnets, each disposed and normally energized to maintain the associated punch in the inoperative position; a series of springs fast with the frame of the apparatus and so adapted that each of the springs can bring the associated punch into a second operative position in the said perpendicular plane when the corresponding electromagnet is selectively de-energized, a depression bar adapted to move in the said perpendicular plane and actuated at each cycle to engage
  • FIG. 1 illustrates in longitudinal section along the line 1-1 of FIG. 2 a punching apparatus adapted to punch record cardscolurrm-by-column
  • FIG. 2 illustrates a part of the mechanism of FIG. 1 in section along the line 2-2
  • FIG. 3 is a diagram indicating the relative movements, on the one hand of the punch-depressing bar and of the punch-restoring bar, and on the other hand the movements of the return bar in the course of a number of successive cycles of the machine.
  • record cards 1 are successively advanced in known manner through a guide passage 2.
  • Each card is advanced under a row of punches 3A, 3B, 3C, in which it is engaged at one edge between driving rollers 4 and 5 actuated in known manner by a step-by-step driving mechanism (not shown).
  • the latter is adapted to position the record columns of the card successively under the row of punches of the mechanism, in synchronism with the movements of the members for the selection and actuation of the punches.
  • the latter are each guided at their lower end on the one hand in a slot in a first slotted guide plate 6, which is secured to the frame of the machine, and on the other hand by a counter-plate 7 disposed opposite the slots in the plate 6.
  • the punches are thus positioned opposite a die plate 8 formed with punching orifices.
  • the punches are also each guided, substantially midway of their length, in a slot in a second guide plate 9, which is also fixed.
  • the punches are continuously pushed towards the base of the slots in the guide plates, each by a corresponding leaf spring 10.
  • an electromagnet 11 Situated opposite each punch is an electromagnet 11, of which the armatures l2 and 13 form a part of the magnetic circuit.
  • These armatures are so dimensioned as to define a first position Pl, indicated by dash-dotted lines in FIG. 1, in which the punch is inclined in relation to the vertical (in FIG. 1) in a socalled inoperative position in which the punch is main tained by the electromagnet when the latter is energized.
  • the punch When the electromagnet is de-energized, the punch is urged by the associated spring into a second position P2, called the operative position, in which the upper portion of the punch is engaged between a depression bar 16 and a restoring bar 17, both of which are fast with a movable support 18 provided with levers 19 adapted to pivot about a pin 20 fast with the frame of the machine.
  • the movable support 18 is provided with a roller 21 disposed on a central axis of the apparatus in order to turn about a pin 22 fast with the support 18 and to roll against the periphery of a perforation actuating cam 23 which is keyed on a driving shaft 24 and driven by the latter with a continuous rotational movement in the direction of the arrow F.
  • FIG. 2 which shows only a part of the mechanism in section along the line 2-2 of FIG. 1, there is shown an axis X-Y extending through the center of the thickness of the cam 23, through the center of its roller 21 and between the punches 3F and 3G of the mechanism.
  • the axis X-Y also extends through the center of the row of punches which normally comprises twelve punches, each of which is arranged to permit the punching of a perforation in one of the twelve recording positions of each column of a standard record card.
  • a return bar 27 is disposed behind the row of punches and is fast at each of its ends with levers 28 disposed symmetrically about the axis X-Y of FIG. 2, only one of these levers being shown in this figure.
  • Each lever 28 is adapted to pivot about a fixed pin 29 fast with the frame of the machine and provided with a roller 30 mounted on a shaft 31 so as to roll against the periphery of an actuating cam 32 keyed on the driving shaft 24 and driven by the latter so as to actuate the return bar 27.
  • the rollers 21 and 30 are applied against their respective cams under the action of return springs or by other appropriate means (not shown).
  • the described mechanism is designed for use in different positions, i.e., in such manner that the punches may be situated in the mechanism in a mean position in which they are substantially vertical, horizontal or inclined in one direction or the other.
  • a fixed abutment plate 33 which may consist of acetal resin and which is arranged to prevent the active portion of a punch, i.e., the perforating portion, from leaving the guide plates 6 and 7 when any one of the punches is extracted from the die under the action of the restoring bar 17
  • the described mechanism is also provided with monitoring means for checking the effective actuation of the selected punches.
  • each punch Associated with each punch is a piezo-electric transducer 35 which is fixed in the frame of the machine, and one end 36 of which is engaged in a slot 37in each punch, forming a boss or protuberance and adapted to ensure that complete actuation of a punch in a punching operation displaces the end of a corresponding transducer and sets up along the output wires 38 of the latter an electric pulse which may be transmitted to monitoring devices, for example of a type similar to that described in US. patent application Ser. No. 577,776, filed on the June 15, 1966.
  • the curve PC indicates the movements of the depression bar 16 and of the restoring bar 17, both of which are fast with the movable support 18, which is actuated by the cam 23.
  • the height of the card passage at the level of the punches is represented by a height H in relation to the curve PC which substantially represents the movement of the perforating portion of the punches between the upper level of the card passage and the upper level of the punching die.
  • the thickness E corresponds to the relative thickness of a card engaged in the said guide passage.
  • the times T1, T2, and T3 indicate in the diagram of FIG. 3 the maximum duration provided in each cycle for an actual perforating operation, i.e., the time for which a punch may be engaged in a card.
  • the card-advancing means are so designed as to advance the cards through the perforating mechanism in the time elapsing between two successive perforating operations.
  • the curve R of FIG. 3 indicates the movements of the return bar 27, of which the leading edge, which is intermittently in contact with the punches, is shifted between a downstream deadcenter point PAV and an upstream dead-center point PAM in the course of the successive cycles of the machine under the action of the cams 32 which act on the levers 28 disposed at the ends of the bar 27.
  • the return bar 27 maintains all the punches situated in the inoperative position, in each cycle, in the immediate neighborhood of the armatures of their respective electromagnets, each punch being retained in this position since its corresponding electromagnet is energized. Any punch whose selecting electromagnet has been de-energized is brought into the active punching position at P2 (FIG. 1) or at PAC (FIG. 3) under the action of a spring 10 which bears against the bar 27, until its reaches the bottom of a slot in the guide plate 9. Thereafter, the bar 37 continues its movement as far as the upstream deadcenter position PAM.
  • the actuating cams 23 and 32 shown in FIGS. 1 and 2 have been given a form adapted to produce four punching cycles per revolution of the shaft 24, but under these conditions the said shaft must rotate at 2,400 r.p.m. for a punching frequency of cycles per second.
  • the position of the members of the punching mechanism corresponds to instant 53 of the diagram of FIG. 3. This instant occurs at the beginning of a cycle in the course of which one or more punches have been brought into the active perforating position and the return bar 27 leaves this punch or these punches then in the slots in the guide plate 9, and proceeds as far as its upstream dead-center position PAM.
  • PAM upstream dead-center position
  • FIG. 3 there is represented by a partly hatched strip CR the time during which the current is normally established in the electromagnets (hatched part) and then interrupted (unhatched part) in order to show how a punching operation can be controlled during the cycle C2.
  • the operation of the apparatus in accordance with the diagram of FIG. 3 would be as follows.
  • the electromagnet is still energized (hatched part of the strip CR).
  • the movable bars 16 and 17 are at the lower dead-center position, but the punch to be selected is still retained in its inoperative position (P1 in FIG. 1) by its electromagnet and no punching operation takes place during the time T1 of the cycle C1.
  • the current is interrupted in the electromagnet from the instant 51.
  • This advance of the instant of interruption permits correct operation of the apparatus at high speeds even if a delay of the effective instant of interruption occurs and despite a delay in the instant of release of the punch due to hysteresis phenomena.
  • the active end of the punch enters the card passage (curve PC) and at 55 the punch engages the card for a punching operation which will last at most for the time T2 in the course of which the punch descends to PMB and then rises (with a slight delay in relation to the curve PC, due to the clearance) and leaves the card at the latest at the instant 56, when its leaves the card passage in the case where the punch entrains the card in a rising movement.
  • the punch is taken up by the return bar 27 (curve R), which again brings the saidpunch into the inoperative position P1 at the downstream dead-center point PAV of the bar 27, in immediate proximity to the fixed amiatures of the electromagnet at the instant 57.
  • the electromagnet 11 may be energized again at the instant 58, i.e., before the instant 57, when the punch is brought into the inoperative position against its electromagnet. Owing to the fact that each punch is mechanically returned into the inoperative position in each cycle, the current flowing through the electromagnet is only a holding current which is much weaker than an attracting current which would have to attract the punch from the operative position to the inoperative position. Consequently, the current employed for holding the pinches is relatively very weak and therefore easy to control.
  • a punching mechanism for punching a record card or tape which is advanced step-by-step past a punching die comprising:
  • a punch-depressing bar actuated by motor-driven means with a reciprocating movement towards and away from said die in a plane substantially perpendicular to the latter;
  • any one of said electromagnets being de-energized under selective control so that the corresponding punches are brought by the associated spring into said operative position in which the other ends of said punches are engageable by said depression bar.
  • Punching mechanism wherein a return bar is actuated with a reciprocating movement by said motor-driven members in a direction substantially parallel to said die, said bar being arranged to bring into said inoperative position any one of said punches after they have been brought into said operative position and actuated.
  • Cyclically operating punching mechanism for punching a record card which is advanced step-by-step past a punching die, said mechanism comprising:
  • a punch-depressing bar actuated by a reciprocating movement by motor-driven driving members such that said bar is displaced towards said die during a first part of an operating cycle
  • each electromagnet has pole pieces arranged in proximity to the other end of the associated one of said punches in order to maintain the latter in an inoperative position in which it is inclined and partially outside said perpendicular plane, one or several of said electromagnets being de-energized under selective control so that, for each derenergized electromagnet, the corresponding punch is'brought by the associated spring into said operative position in which the other end of said punch is engaged by said depression bar when the latter moves towards said die.
  • Punching mechanism comprising a return bar operatively connected to said driving members, which are arranged to' impart to said bar a substantially transverse reciprocating movement in said perpendicular plane and such that in the second part of an operating cycle said return bar brings into the inoperative position said punch or punches which has/ have been brought into the operative position.
  • a punching mechanism for punching marks on a record which is advanced underneath comprising:
  • means for positioning said plurality of elongated punches within the downward path of said driving means comprising means for magnetically retaining said plurality of punches in a first position outside the downward path of said driving means, means for biasing said plurality of elongated punches into a second position within the downward path of said driving means, and means for selectively deactivating said magnetic retaining means so that said biasing means moves said elongated punches into the second position within the downward path of said driving means.
  • said means for magnetically retaining said plurality of punches comprises a series of electromagnets each including at least one pole piece for magnetically holding each of said plurality of elongated punches when each of said plurality of elongated punches are in the first position outside the downward path of said driving means.
  • said means for biasing said plurality of elongated punches comprises a plurality of leaf springs each of which is in flexed contact with a corresponding elongated punch so as to move the elongated punch into the second position within the downward path of said driving means when said means for magnetically retaining said plurality of punches is deactivated by said deactivating means.
  • a punching mechanism for punching marks on a record which is advancing underneath comprising:
  • a plurality of electromagnets including a plurality of armatures each with at least one magnetic end aligned in a first plane;
  • the punching mechanism of claim 10 further comprising means for biasing said released, elongated punches toward said aligning means.
  • said means for biasing said plurality of elongated punches comprises a plurality of leaf springs each of which is in flexed contact with a corresponding elongated punch so as to move the elongated punch into engagement with said aligning means when the corresponding electromagnet is deactivated by said deactivating means.
  • the punching mechanism of claim ll further comprising:
  • said aligning means including a second cam contour phase leading said first cam contour and engaging said aligning means so that said aligning means causes said released, elongated punch to be aligned within the second plane prior to said first cam contour moving said driving means downwardly toward said record.
  • the punching mechanism of claim 13 further comprising:

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US132828A 1968-10-23 1971-04-09 Apparatus for punching record cards or tapes Expired - Lifetime US3696993A (en)

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FR171013 1968-10-23

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US (1) US3696993A (sv)
BE (1) BE740161A (sv)
DE (1) DE1952880A1 (sv)
FR (1) FR1603225A (sv)
GB (1) GB1240216A (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120048093A1 (en) * 2005-08-30 2012-03-01 Worktools, Inc. Hole punch element

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938792C2 (de) * 1979-09-25 1983-04-14 Transformatoren Union Ag, 7000 Stuttgart Einphasen-Transformator mit in Gießharz vergossenen Wicklungen
DE2945622C2 (de) * 1979-11-12 1982-08-19 Hans-Joachim Dipl.-Phys. 6104 Seeheim-Jugenheim Thiel Vorrichtung zum Schreiben von Blindenschrift
CN1082028C (zh) * 1998-06-24 2002-04-03 吕传水 起重机主梁矫形方法
EP1720710A1 (de) 2004-03-03 2006-11-15 REA Elektronik GmbH Tintenstrahl-schreibkopf
WO2005110759A1 (de) 2004-05-11 2005-11-24 Rea Elektronik Gmbh Tintenstrahl-schreibkopf
DE102005031034B4 (de) * 2005-07-02 2021-03-18 Rea Elektronik Gmbh Tintenstrahl-Schreibkopf
DE102005020248B4 (de) * 2004-10-25 2014-08-28 Rea Elektronik Gmbh Tintenstrahl-Schreibkopf

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE249658C (sv) *
US2744578A (en) * 1951-11-02 1956-05-08 Bell Telephone Labor Inc Code tape perforators
US3051377A (en) * 1958-07-11 1962-08-28 Smith Corona Marchant Inc Perforator
US3104053A (en) * 1962-12-14 1963-09-17 Rabinow Engineering Co Inc Electromagnetic interposing punch
US3194494A (en) * 1963-03-29 1965-07-13 Ibm Punch mechanism
US3323716A (en) * 1965-05-14 1967-06-06 Tally Corp High-speed tape perforator
US3411709A (en) * 1964-10-08 1968-11-19 Honeywell Inc Flexure-interposer
US3459370A (en) * 1965-08-05 1969-08-05 Siemens Ag Selective punch device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE249658C (sv) *
US2744578A (en) * 1951-11-02 1956-05-08 Bell Telephone Labor Inc Code tape perforators
US3051377A (en) * 1958-07-11 1962-08-28 Smith Corona Marchant Inc Perforator
US3104053A (en) * 1962-12-14 1963-09-17 Rabinow Engineering Co Inc Electromagnetic interposing punch
US3194494A (en) * 1963-03-29 1965-07-13 Ibm Punch mechanism
US3411709A (en) * 1964-10-08 1968-11-19 Honeywell Inc Flexure-interposer
US3323716A (en) * 1965-05-14 1967-06-06 Tally Corp High-speed tape perforator
US3459370A (en) * 1965-08-05 1969-08-05 Siemens Ag Selective punch device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120048093A1 (en) * 2005-08-30 2012-03-01 Worktools, Inc. Hole punch element
US8464620B2 (en) * 2005-08-30 2013-06-18 Worktools, Inc. Hole punch element

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DE1952880A1 (de) 1970-04-30
GB1240216A (en) 1971-07-21
BE740161A (sv) 1970-03-16
FR1603225A (sv) 1971-03-22

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