US3144205A - Perforating apparatus - Google Patents

Perforating apparatus Download PDF

Info

Publication number
US3144205A
US3144205A US23297162A US3144205A US 3144205 A US3144205 A US 3144205A US 23297162 A US23297162 A US 23297162A US 3144205 A US3144205 A US 3144205A
Authority
US
United States
Prior art keywords
tape
punches
perforating
row
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Other languages
English (en)
Inventor
Turner Frederick James Leslie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Creed and Co Ltd filed Critical Creed and Co Ltd
Application granted granted Critical
Publication of US3144205A publication Critical patent/US3144205A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04L17/02—Apparatus or circuits at the transmitting end
    • H04L17/04—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars
    • H04L17/08—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars combined with perforating apparatus
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8828—Plural tools with same drive means
    • Y10T83/8831—Plural distinct cutting edges on same support
    • Y10T83/8834—Successively acting

Definitions

  • This invention relates to perforating apparatus, and more particularly to such apparatus for erasing errors in data perforated in a recording medium as code elements of a signal combination.
  • perforating apparatus It is known in perforating apparatus to provide means for reading a character perforated in a recording medium such as tape, for example, some three or four character positions after perforation has been effected.
  • the perforator On detection of an error in the character, the perforator is caused to stop whereafter the tape is fed in a reverse direction until the character in error is beneath the perforating punches of the apparatus.
  • the tape is fed in a reverse direction until the character in error is beneath the perforating punches of the apparatus.
  • all the characters brought beneath the perforator are overpunched to erase the character by producing an all-mark condition at each of those character positions. Thereafter the tape is fed in the normal direction and the elements of overpunched characters are perforated in succeeding character positions.
  • perforating apparatus including a die-plate, a plurality of punches arranged in rows and columns, means for supporting said punches for movement toward the dieplate and thereafter to cause said punches to perforate the recording medium row-by-row or column-by-column in succession.
  • perforating apparatus including a die-plate, a plurality of punches arranged in rows and columns, means for supporting said punches for movement toward the dieplate and thereafter to cause said punches to perforate the recording medium in a selected order.
  • FIG. 1 shows a block schematic of a data processing system in which perforating apparatus according to the present invention is employed.
  • FIG. 2 shows a pictorial view of one embodiment of the perforating apparatus according to the present invention.
  • the block P is representative of well-known apparatus for perforating the elements of, for example, an S-unit code combination, plus a feed hole perforation by which the tape is fed in the direction indicated by the arrow F.
  • the block R is representative of photo-electric reading means arranged to read the elements of a character code combination perforated in the tape T by the apparatus P.
  • a non-limiting example of such a photoelectric reading means is disclosed in US. Patent No. 2,382,251 to R. D. Parker et al.
  • the centre line of the photo-electric reading means is a distance of three character positions in advance of the centre line of the punches of the apparatus P.
  • Block RU represents well known receiving apparatus for receiving incoming signals representative of code combinations and applying said signals to perforating apparatus P which perforates tape T in accordance with the received code combinations.
  • An example of receiving apparatus and tape perforating apparatus for performing these functions is a Friden Teledata Tape Transmitter-Receiver as disclosed in the brochure Friden Communications Systems and Equipment published 1960, USA.
  • the block C is representative of a well-known type of comparator, the purpose of which is to check that the elements of a character code combination, read by the photo-electric reading means, are in accordance with the elements of the character code combination received by receiving unit RU.
  • the perforating apparatus PA may be disposed any desired number of character positions in advance of the centre line of the photo-electric reading means R; however in the presently described embodiment of the apparatus, it may be considered that the centre line of a first row, of four rows, of perforating punches is disposed three character positions in advance.
  • the blocks are slotted, as at 6, aud recessed, as at 7, to respectively accommodate for vertical movement therein punch operating bars, such as 8, and carriers 9 therefor.
  • the carriers 9 are rigidly coupled one to the other by a rod 10 disposed therebetween. Rod ltleugages in cam-track 'punches in the next adjacent column and so on.
  • a cam-plate 12 which cam-plate is accommodated on and aflixed to a rod 13.
  • the rod 13 is coupled to an operating lever 14 and pivotally supported in holes 15 of brackets 16 which are affixed to the apparatus frame (not shown).
  • the operating lever is in turn, coupled to, for example, a solenoid armature SA for movement therewith in the directions indicated by the arrows B and C.
  • FIGS. 3 and 4 show respectively part sectioned front and side views of one arrangement of punches and punch operating bars 8, viewed in the directions indicated by the arrows D and E of FIG. 1.
  • one side of the punch operating bar 8 tapers toward the other side, i.e. the lower side tapers toward the upper side.
  • the slots S in the punches 5 are of equal width, and the punches are supported on the punch operating bar particular thereto through the engagement of the upper complementary sides of slots with the side of the punch operating bar opposite to the tapering side.
  • FIGS. 5 and 6 An alternative arrangement of punches 5 and punch operating bars 8 to effect column-by-column perforation is shown in the part-sectione front and side elevations of FIGS. 5 and 6 respectively.
  • the punches 5 are of equal length and the punch operating bars 3 are substantially parallel along their lengths.
  • the slots S in the punches of one column i.e. column C1 are wider than those in the next adjacent column C2 and so on.
  • the punches 5 are supported on the punch operating bar particular thereto through engagement of the upper complementary sides of the slots with one side i.e. the upper side, of the punch operating bar.
  • row-by-row perforation of the tape T can be effected by making the slots S in row R1 wider than those of the punches in the row R2 and so on.
  • Row-by-row perforation of the tape T is effected by movement of the punch operating bars 8 downward and the engagement of the other (lower) sides thereof with the other (lower) complementary sides of the slots of the punches of one row after another in succession.
  • FIGS. 7 and 8 Another alternative arrangement of punches 5 and punch operating bars 8 to effect column-by-column perforation of the tape T is shown in the front and side elevations of FIGS. 7 and 8 respectively.
  • the length of the punches in the first one of the columns i.e. column C1 are shorter than the The slots in the punches of the rows are of equal width and are supported on the punch operating bars particular thereto through engagement of the upper complementary sides of the slots with one side i.e., the upper side, of the punch operating bar.
  • Row-by-column perforation of the tape T is effected through movement of the punch operating bars downward to permit all the punches to move down simultaneously to engage the recording medium and to cause the other (lower) sides thereof to engage the other (lower) complementary sides of the slots of the punches of one column after the other in succession.
  • Row-by-row perforation of the tape T can be effected by making the punches of each row of equal length and by making the punches in row R4 shorter than the punches in the row R3 and so on.
  • Row-by-row perforation of the tape T being effected by movement of the punch operating bars downward and the engagement of the other (lower) sides thereof with the other (lower) complementary sides of the slots of the punches of one row after another in succession.
  • FIGS. 9 and 10 A further alternative arrangement of punches 5 and operating bars 8 to effect row-by-row perforation of the tape T is shown in the front and side views of FIGS. 9 and 10 respectively.
  • the punches are of equal length as are the slots S (FIG. 10) therein.
  • the punch operating bars 8 are stepped on their lower sides and are of different depths.
  • the punch operating bar 8 particular to rows R1 and R2, closely engages the upper and lower sides of the slots S in the punches of row hill, and incorporates a stepped face which clears the lower sides of the slots S of the punches in the row R2 by a distance a little in excess of the thickness of the tape T.
  • the overall depth of the punch operating bar 8, particular to the punches of rows R3 and R4, is less than the overall depth of the punch operating bar 8 particular to the punches of rows R1 and R2 by an amount a little in excess of twice the thickness of the tape T.
  • This punch operating bar is also stepped to clear the lower sides of the slots S in the runches of row R4, and by an amount a little in excess of three times the thickness of the tape T.
  • the tape T is fed in the direction indicated by the arrow F to permit perforation of the tape T in successive character positions, by the perforating apparatus P in accordance with information received by receiver unit RU.
  • the elements of successively perforated characters are scrutinised by photo-electric reading means R three character positions on from the perforating apparatus P. Electric current signals, indicative of the marld' or space conditions of elements of a previously perforated character, are applied to the comparator unit C from reading means R where they are compared, by well known means, with those of the character intended to occupy that particular character position which are fed to comparator unit C from receiving unit RU.
  • an electric current signal is generated, and applied to the control unit CU, by the comparator unit C.
  • the control unit CU likewise generates electric current signals which are fed to the operating mechanism associated with the perforating apparatus P.
  • perforating apparatus P ceases, temporarily, to perforate the tape with elements of succeeding characters, and proceeds to feed blank tape in the direction indicated by the arrow F.
  • an electric current signal is applied to a. solenoid the armature SA of which is operatively connected to the lever 14 of the perforating apparatus PA.
  • this solenoid is momentarily energised to pivot operating lever 14 (FIG. 2) in the directions indicated by the arrows B and C.
  • pivot operating lever 14 In its pivoting movement, in the direction indicated by the arrow B, it causes guide pins 17 to engage feed holes PH in the tape and punches 5 of the rows R1 to R4 to overpunch the elements of the last four characters perforated by the perforating apparatus P in any one of the manners as previously described.
  • perforating apparatus P is caused to perforate the elements of the four characters in suc ceeding character positions on the tape T.
  • the punches of perforating apparatus P will have been set to ensure that the condition of the elements of the first character of the four are correct. It may well be that another one or all of the three other characters are in error. In such circumstances the punches of the perforating apparatus P will be set to ensure that the condition of the elements of the character or characters concerned are correct.
  • control means operatively associated with said comparing means and said first and second perforating means for disabling said first perforating means and operating said second perforating means for a predetermined time after the receipt of incoming information which differs from the information con tained on said tape whereby said desired amount of information is overpunched.
  • said received information consists of coded characters, each transverse row representing one character, and wherein the first overpunched transverse row corresponds to the first dissimilar information detected by said comparing means.
  • Equipment as claimed in claim 1 wherein said second perforating means comprises a plurality of punches arranged in columns and rows, and means for selectively operating rows of said punches sequentially.
  • said second perforating means comprises a plurality of punches arranged in rows and columns, and means for selectively operating columns of said punches sequentially.
  • said second perforating means comprises a plurality of punches arranged in rows and columns, and means for selectively operating said punches in a desired order.
  • each said punch comprises a transverse slot disposed intermediate the ends thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US23297162 1961-11-03 1962-10-25 Perforating apparatus Expired - Lifetime US3144205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3946061A GB941222A (en) 1961-11-03 1961-11-03 Data processing equipment

Publications (1)

Publication Number Publication Date
US3144205A true US3144205A (en) 1964-08-11

Family

ID=10409669

Family Applications (1)

Application Number Title Priority Date Filing Date
US23297162 Expired - Lifetime US3144205A (en) 1961-11-03 1962-10-25 Perforating apparatus

Country Status (6)

Country Link
US (1) US3144205A (de)
CH (1) CH422403A (de)
DE (1) DE1261694B (de)
DK (1) DK109338C (de)
GB (1) GB941222A (de)
NL (1) NL285077A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414673A (en) * 1965-08-23 1968-12-03 Teletype Corp Record error correction system
US3795791A (en) * 1970-12-14 1974-03-05 Cit Alcatel Automatic code-correcting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US524691A (en) * 1894-08-14 Metal-punching machine
US1582596A (en) * 1923-10-22 1926-04-27 Gardner & Company Punching machine
CA589679A (en) * 1959-12-29 Plastic Binding Corporation Gang punch
US2950758A (en) * 1955-03-16 1960-08-30 Englund Gosta Roland Cash registers, accounting and like machines
US3016186A (en) * 1958-07-28 1962-01-09 Western Union Telegraph Co Tape reading punch
US3083898A (en) * 1960-06-15 1963-04-02 Northern Electric Co Apparatus for verifying the operation of a tape reperforator photoelectrically

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US524691A (en) * 1894-08-14 Metal-punching machine
CA589679A (en) * 1959-12-29 Plastic Binding Corporation Gang punch
US1582596A (en) * 1923-10-22 1926-04-27 Gardner & Company Punching machine
US2950758A (en) * 1955-03-16 1960-08-30 Englund Gosta Roland Cash registers, accounting and like machines
US3016186A (en) * 1958-07-28 1962-01-09 Western Union Telegraph Co Tape reading punch
US3083898A (en) * 1960-06-15 1963-04-02 Northern Electric Co Apparatus for verifying the operation of a tape reperforator photoelectrically

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414673A (en) * 1965-08-23 1968-12-03 Teletype Corp Record error correction system
US3795791A (en) * 1970-12-14 1974-03-05 Cit Alcatel Automatic code-correcting device

Also Published As

Publication number Publication date
CH422403A (de) 1966-10-15
GB941222A (en) 1963-11-06
DE1261694B (de) 1968-02-22
DK109338C (da) 1968-04-16
NL285077A (de) 1900-01-01

Similar Documents

Publication Publication Date Title
US2346268A (en) Record controlled perforating apparatus
US2741312A (en) Indicia-controlled record perforating machine
US2490608A (en) Perforating apparatus
DE2633562A1 (de) Schnelldrucker
US3144205A (en) Perforating apparatus
US2340800A (en) Record controlled perforating apparatus
US1950476A (en) Card perforating machine
US2744578A (en) Code tape perforators
US2343405A (en) Communication apparatus
US3024971A (en) Tape perforator
US1827362A (en) Printing telegraph system
US1394439A (en) Code-transposing apparatus for telegraph systems
DE1462578A1 (de) Zeichensende- und Empfangsgeraet
US1914293A (en) Perforating machine
US2391773A (en) Record controlled tape punching machine
US3194494A (en) Punch mechanism
US1843772A (en) Automatic indexing means for selecting bars
US3283974A (en) Chadless perforator
US3016186A (en) Tape reading punch
US2412422A (en) Recording apparatus
US3133698A (en) Perforator for record carriers
US2852076A (en) Typewriter controlled tape punch
US2303846A (en) Printing telegraph apparatus
US3268163A (en) Perforator for punching into tapes and the like hole combinations corresponding to information-bearing signals
US2237130A (en) Transmission system for statistical data