US3132797A - Perforating apparatus - Google Patents

Perforating apparatus Download PDF

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Publication number
US3132797A
US3132797A US221482A US22148262A US3132797A US 3132797 A US3132797 A US 3132797A US 221482 A US221482 A US 221482A US 22148262 A US22148262 A US 22148262A US 3132797 A US3132797 A US 3132797A
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US
United States
Prior art keywords
tape
arm
lever
punch
cam
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Expired - Lifetime
Application number
US221482A
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English (en)
Inventor
Turner Frederick James Leslie
Webberley Harold George
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Creed and Co Ltd
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Creed and Co Ltd
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Publication date
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Publication of US3132797A publication Critical patent/US3132797A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/20—Apparatus or circuits at the receiving end using perforating recorders
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/06—Tape or page guiding or feeding devices

Definitions

  • the present invention relates to improvements in perforating apparatus. Such apparatus may be used for perforating the elements of a signal combination in a tape.
  • Tape perforating apparatus in which a punch is provided for punching a series of feed holes in a tape, and in which the teeth of a sprocket wheel engage in the feed hole perforations to feed the tape past a row of punches which perforate the tape in accordance with the elements of successive signal combinations.
  • the feed hole punch is operated irrespective of whether the tape is being fed or not and this results in unnecessary wear of the feed hole punch and die.
  • perforating apparatus including a plurality of punches, a punch operating member for each punch, means to move each of the said operating members into one of two positions, punch selecting means to hold the said members in one of the positions, and means to oscillate the members about either of the positions.
  • perforating apparatus including a plurality of punches, a punch operating member for each punch, means for moving each punch operating member from one position to another including a crank member for each punch operating member, and a link member pivotally connecting respective crank and punch operating members, punch selecting means for each punch co-acting with the crank member particular thereto to hold the associated punch operating member in one of the said positions, and means for pivoting one or more of the punch operating members held in the said one position to cause a punch or punches to perform perforating operations.
  • FIGS. 1 to 3 inclusive show side views of the operating mechanism for a single perforating punch at various stages in a perforating operation
  • FIG. 4 shows a side view of the operating mechanisms for a number of perforating punches
  • FIGS. 5 and 6 show side views of a tape feeding mecha- -nism which is operatively associated with the feed hole punching mechanism shown in FIG. 4.
  • the other end of operating arm 15 isarranged to rest with its underside in engagement with a stop-pin 16 aflixed to the plate 1.
  • the upper side of the latter mentioned end of punch operating arm 15 engages with the headed lower end of a perforating punch 17 which is carried for vertical movement in a punch stripper plate 18 and a die 19, and which is biassed to move vertically downward by a leaf spring 35, aflixed at one of its ends to the plate 1 and engaging the upper side of the headed lower end of the punch 17.
  • the tape 20 is fed during punching operations between the stripper plate 18 and the die 19 as shown in the direction indicated by the arrow A.
  • the underside of the punch operating arm 15 is pivotally engaged at a point intermediate its ends by one end of a link member 21.
  • the other end of link member 21 Q-pivotally engages one arm 22 of a crank member constituted by a bell-crank 23.
  • This bell-crank 23 is pivotally mounted on a spindle 24 aflixed to the plate 1, and has a second arm 25 extending therefrom to constitute the armature of an electromagnet 26 which acts as means for selecting a particular punch for operation.
  • the second arm 25 is biassed to move in a direction away. from the core of the electromagnet 26 by a tension spring 27 which is coupled at its ends to the second arm 25 and to a pin 28 affixedto the plate 1.
  • a setting arm 29 is pivotally mounted on the spindle 24 with a bent portion 30 at one of its ends engaging with the arm 22 of the bell-crank 23, and with a roller 31, rotatably mounted on a pin 32 at its other end, engaging with the periphery of the cam 6.
  • setting arm 29 also incorporates a second arm 36, the
  • the setting arm 29 is biassed to maintain the roller 31 thereon in engagetain the members biassed in the same direction as they are biassed by the tension springs.
  • FIG. 4 shows a side elevation of the tape perforating apparatus proper catering for the nine punching positions.
  • the bell-cranks 23 are all pivotally accommodated on the spindle 24.
  • the nine punching positions may be considered as being in a line extending in numerical order outward from the mounting plate 1 and of which the feed hole punch position is the fourth of the nine positions.
  • three electromagnets 26 are mounted side by side, and at positions B, C and D elect-romagnets 26 are mounted in pairs.
  • the three electromagnets at position A are particular to the punches at the first, fifth and ninth punching positions.
  • the two electromagnets at position B are particular to the punches at the second and sixth punching positions.
  • the two electromagnets at position C are particular to the punches at the third and seventh punching positions, and the two electromagnets at position D are particular to the punches at the fourth and eighth punching positions, of which the punch at the fourth position is the feed hole perforating punch.
  • the second arms 25 of the pairs of bell-cranks 23 at positions B, C and D areradially stag gered with respect to the second arms of the three bellcranks at position A, whilst the arms 22 of all bell-cranks 23 are arranged in alignment with respect to their associated link members such as 21.
  • This arrangement of the bell-cranks 23 and electromagnets 26 permits the nine punches to be pitched 0.l apart from each other in the line of punches.
  • each of the punches will be operated independently, and in the manner previously described for operation of the feed hole punch to effect a punching operation.
  • an electric current signal is applied to any onev of the electromagnets particular to punches representative of the elements of a character then an electric current signal will also be applied to the electromagnet particular to the feed hole perforating punch, thus a feed hole perforating operation will be effected only at such times that the elements or elements of a character are punched into the tape. It is also arranged that an electric current signal can be applied, if it is so desired, to the electromagnet particular to the feed hole perforating punch if a blank space or blank spaces on the tape between character perforations is required when of course the otherpunches remain unoperated.
  • a tape feeding mechanism is operatively associated with the feed hole punching mechanism to effect feeding punching mechanism and the tape feeding mechanism are linked by the provision of a second arm 36 extending from the second arm 29.
  • a tape feeding operation is performed between perforating operations, and the feed hole punch operating mechanism is linked to the mechanism of the tape feeding unit by a second arm 36 extending from the setting arm 29.
  • the free end of the second arm 36 engages one arm 37 of a two armed lever 38 which is fixed to a spindle 41 pivotally supported in a bearing (not shown) in the mounting plate 1.
  • the other arm 39 of the two arm lever 38 incorporates a bent portion 40 at one end thereof which is in close proximity to the end ofthe second arm 25 of the bell-crank 23 particular to the operating mechanism for the feed hole punch.
  • FIG. 5 is a side elevation of one part of the tape feeding mechanism which is located behind the mounting plate 1 through which spindle 41 (FIG. 4) extends.
  • Spindle 41 pivotally accommodates thereon and has affixed thereto respectively a lever 42 and another two armed lever 43.
  • the lever 43 is biassed to move in a continuously, with its periphery.
  • Rollers 51 and 52 are .mounted on arms 53 and 54 respectively of a cam follower 55, which is pivotally mounted on a spindle 96 affixed to the mounting plate 1.
  • An extending arm 56 of the cam follower 55 is pivotally linked by a pin 57 to one end of a lever 58.
  • Lever 58 is in turn pivotally linked by a pin 59 at its other end, to a pawl 60.
  • the pawl 60 is biassed by a tension spring 62, affixed at its ends to one end of the pawl 60 and to the lever 58, to cause a tongue at the other end of the pawl to engage with the toothed periphery of a racket wheel 63.
  • the ratchet wheel 63 is aflixed to a spindle 64 which extends through a bearing (not shown) in the mounting plate 1.
  • the spindle 64 also accommodates thereon and has aflixed thereto behind the ratchet-wheel, a star-wheel 65 which is engaged, between teeth thereof, by a roller 66 rotatably mounted on one end of a lever 67.
  • Lever 67 is in turn pivotally mounted at its other end, on a pin 68 afixed to the mounting plate 1.
  • the roller 66 is biassed to engage the star-wheel 65 by a tension spring 69 affixed at its ends to a pin 70 affixed to the mounting plate 1 and the lever 67.
  • a tape-feed sprocket-wheel 61 is also accommodated on and affixed to spindle 64. The sprocket-wheel however is located on the front of the mounting plate 1 as shown in FIGS.
  • the other arm 75 of the forked lever 74 is arranged to be engaged by the end of the arm 42 on spindle 41 when the two armed lever 43 is pivoted in an anti-clockwise direction by spindle 41.
  • FIG. 6 shows a side elevation of another part of the tape feeding mechanism. For the sake of clarity these two units have been shown separately. In practice these pairs are mounted side by' side behind the mounting plate 1 and share shafts 50 and 64 and pins 96 which are common to both. Shaft 50, as well as accommodating thereon cam 49 f FIG.-5, also accommodates a cam 87. The profile of cam 87 is arranged to be continuously engaged by rollers 88 and 89 on arms 90 and 91 respectively of a cam follower 92 which is pivotally mounted on the spindle 96 affixed to the mounting plate 1.
  • An extending arm 94 of the cam follower 92 continuously engages one end 83 of a pawl lever 82 which is pivotally mounted on a pin 84 affixed to the mounting plate 1.
  • the end :83 of the pawl lever 82 is biassed to engage continuously the extending arm 94 of the cam follower under the influence of a tension spring 85 which is affixed at its ends to the pawl lever 82 and to a pin 86 afiixed to the mounting plate 1. Pivoting of the pawl lever 82 about the axis of the pin 84 causes the tongue 81 of the pawl lever to be moved into or withdrawn from the path of a second ratchet-wheel 8t) aflixed to the shaft 64.
  • the forked lever 74 and arm 71 form a toggle joint, and these two members are maintained substantially erected in the positions shown by the end of a lever 42 engaging with the arm 75 of the forked lever 74.
  • pivoting of lever 58 in a clockwise direction during the first half cycle of oscillation causes the tongue of the pawl 60 to ride over a tooth of the ratchet-wheel 63, i.e. anticlockwise around the periphery of the ratchet-wheel 63.
  • the tongue of the pawl 60 is in positive engagement with the radial face of the tooth, so that, during the next half cycle of oscillation of lever 58 in an anticlockwise direction, movement of the pawl tongue downwards causes the ratchet-wheel 63 to rotate through one tooth position in the clockwise direction. Since sprocket-wheel 61 is afiixed to the shaft 64, as is ratchet-wheel 63, the sprocket-wheel rotates, and throughengagement of its teeth with feed hole perforations in the tape, the tape is fed toward the punches of the punching mechanism between punching operations.
  • the decision as to whether, or not, a tape feeding operation is to be effected is determined by the condition of an electromagnet at position D (FIG. 4) which electromagnet is particular to the feed hole perforating punch.
  • the star-wheel 65 is likewise rotated since it is on the same shaft 64.
  • the star-wheel 65 is rotated against the influence exerted on it by roller 66, on lever 67, which roller is maintained in engagement with the periphery of the star-wheel 65 by the action of tension spring 69 on the lever 67 pivotable on the pin 68;
  • the action of the roller 66 resting between teeth of the star-wheel 65 after each tape feeding operation assists in maintaining a correctness of pitch between succeeding feed holes perforated in the tape,and thus the pitch between successive characters perforated in the tape.
  • the tongue 81 is withdrawn from engagement with a tooth of the ratchet wheel 80 just before each tape feeding operation takes place, and is disposed into the path of the teeth just before the termination of each tape feeding operation to engage a succeeding tooth of the ratchet-wheel. This arrests rotation of shaft 64 aftereach feeding operation, prevents over-run of the tape, and reduces the spring tension which would normally be required of tension spring 69 (FIG. 5) to locate the roller 66 in effective contact with the star-wheel at the termination of each of the tape feeding operations.
  • perforating apparatus could be used for the perforation and feeding of card or the like, of long or short length, used for the storage of information in the form of code perforations.
  • Perforating apparatus for perforating a tape comprising: a continuously driven cam; a cam follower in operative relationship with said cam, said cam follower oscillating continuously due to the movement of said cam; a plurality of punch operating members linked to said cam follower in a first position; means for causing desired ones of said punch operating members to assume a second position; a plurality of punches one for each punch operating member; means for mounting said punches for reciprocal movement into and out of the tape to be perforated so that punch operating members in said second positions will cause their associated punches to reciprocate and perforate said tape; tape feeding means for moving said tape through said mounting means; feed hole perforating means cooperating with said tape feed means to perforate feed holes in said tape; and means responsive to the positioning of all said punch operating member in said first position to stop said tape feeding and said feed hole perforating means.
  • Tape perforating apparatus for perforating a tape moved between a die and stripper comprising: a cam; means for continuously rotating said cam; a cam follower in operative relationship with said cam, said cam follower oscillating continuously due to the movement of said cam, a plurality of punch operating members linked to said cam follower in a first position, means for causing desired ones of said punch operating members to assume a second position; a plurality of punches, each associated with one punch operating member and positioned in said die so that movement of said punch operating members in said second position causes said punches to oscillate into and out of said stripper, means for stepping said tape through said die and stripper, means cooperating with said stepping means to perforate feed holes in said tape, and means responsive to the positioning of all said punch operating members in said first position to stop said stepping means and said feed hole perforating means.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Punching Or Piercing (AREA)
  • Transmission Devices (AREA)
  • Body Structure For Vehicles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US221482A 1961-09-08 1962-09-05 Perforating apparatus Expired - Lifetime US3132797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32342/61A GB915064A (en) 1961-09-08 1961-09-08 Perforating apparatus

Publications (1)

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US3132797A true US3132797A (en) 1964-05-12

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US221482A Expired - Lifetime US3132797A (en) 1961-09-08 1962-09-05 Perforating apparatus

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US (1) US3132797A (en(2012))
BE (1) BE622163A (en(2012))
CH (1) CH408107A (en(2012))
DE (1) DE1424804A1 (en(2012))
GB (1) GB915064A (en(2012))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506188A (en) * 1967-05-29 1970-04-14 Olympia Werke Ag Reciprocating drive arrangement
US3707262A (en) * 1969-11-28 1972-12-26 Olivetti & Co Spa High-speed tape perforator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574994B2 (en) 2001-06-18 2003-06-10 Corning Incorporated Method of manufacturing multi-segmented optical fiber and preform

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997231A (en) * 1957-08-30 1961-08-22 Royal Mcbee Corp Record perforator
US3006537A (en) * 1957-04-10 1961-10-31 Olivetti & Co Spa Tape punching apparatus for accounting machines and the like
US3014095A (en) * 1954-11-30 1961-12-19 Smith Corona Machant Inc Printer and perforator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014095A (en) * 1954-11-30 1961-12-19 Smith Corona Machant Inc Printer and perforator
US3006537A (en) * 1957-04-10 1961-10-31 Olivetti & Co Spa Tape punching apparatus for accounting machines and the like
US2997231A (en) * 1957-08-30 1961-08-22 Royal Mcbee Corp Record perforator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506188A (en) * 1967-05-29 1970-04-14 Olympia Werke Ag Reciprocating drive arrangement
US3707262A (en) * 1969-11-28 1972-12-26 Olivetti & Co Spa High-speed tape perforator

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Publication number Publication date
CH408107A (de) 1966-02-28
BE622163A (en(2012))
DE1424804A1 (de) 1969-01-02
GB915064A (en) 1963-01-09

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