US1946913A - Automatic punching machine - Google Patents

Automatic punching machine Download PDF

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Publication number
US1946913A
US1946913A US285809A US28580928A US1946913A US 1946913 A US1946913 A US 1946913A US 285809 A US285809 A US 285809A US 28580928 A US28580928 A US 28580928A US 1946913 A US1946913 A US 1946913A
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Prior art keywords
column
punch
card
punching
machine
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Expired - Lifetime
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US285809A
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English (en)
Inventor
Maul Michael
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International Business Machines Corp
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International Business Machines Corp
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion

Definitions

  • MAUL AUTOMATIC PUNCIHINC MACHINE Filed June 16. 1928 5 Sheets-Sheet 5 Patented Feb. 13, 1934 UNITED um AUTOMATIC PUNCHING MACHINE Michael Maul, Berlin, Germany, a?ssignor, by mesne assignments, to International Business Machines Corporation poration of New .York
  • the device disclosed in said application consists of a punching mechanism controlled by punch selectors coupled to accumulating and printing elements of an accounting machine. Upon a group change in the cards, the punch operator pressed a key which initiated the punching operation in the selected unit column of the card, after which the punch- ,ing operation continued automatically in the succeeding'columns under control of the punch selectors. The total standing on the accumulating wheels and printed on a record sheet was thus also punched in selected columns of a card.
  • the object of the present invention is to obviate the need for manually initiating punching operation.
  • means are provided, for setting the punches into operation automatically under control of the automatic group control mechanism which is ordinarily rovided in an accounting machine only for st pping the machine upon a,group change in the cards and effecting total printing.
  • the automatic control mechanism also effects initiation of the punching operation to perforate a card with the total standing on the accumulating wheels of the accounting machine and usually.
  • the present invention provides alternative manual means for initiating said operation.
  • Fig. 1 is a plan view, of the punching machine;
  • Fig. 2 is a side section through the punching machine;
  • Fig. 3 is a means;
  • Fig. 4 isa view of an accumulating unit of an accounting machine coupled with a punch selector.
  • Fig. 5 is an end view of adjacent column accumulator wheels and coupled punch selectors
  • Fig. 6 is a circuit diagram of the punching machine and its automatic controls
  • Fig. 7 is a diagrammatic View of the automatic control mechanism of the accounting machine and the punch initiating means controlled by said mechanism;
  • Fig. 8 is a detail of the column selectors of the punching machine
  • Fig. 9 is a section on line 9-9 of Fig. 8.
  • A indicates generally the column selecting attachment of the perforating machine which in. conjunction with differential punch selector units located in the accounting tion and B indicates generally the card punching portion of the perforating machine.
  • the perforating machine without the column selecting attachment is described in detail in assignee's Patent No. 1,821,078.
  • the operation of the punching mechanism is as followszA stack of cards to be punched is placed in magazine 10.
  • the operator draws out a rodll which carries one card from the bottom of the stack forward into the punching section provided with a' single' column of punches 12, each of which is adapted to perforate a corresponding index point position ually, the operator depresses a key 13 cormachine controls the automatic punching operaof a card column. To operate the punches manresponding to a punch selected for operation.
  • a rod 14 (Fig. 2) rigidly carried by the key rocks a bell crank 15 counterclockwise which moves an interposer bar 17 to an advanced position over the corresponding punch.
  • the interposer bar advances, it rocks an arm 18 in its path tothe left, which pulls a link 19 (Fig. 3) forward to close contacts 20. Closing of the latter contacts completes a circuit (not shown) through the punching magnet 21 which then attracts armature 22 to actuate links 61 and 24 to rock shaft 60 and the bail 23 fast to said shaft.
  • Ball 23 is directly over the column of punches 12 and when rocked downwardly depresses the interposer bar which has been advanced by operation of a' key 13. The punch corresponding to the latter interposer bar is thereby operated. After each column of the card "is punched, escapement mechanism operates to feed the next 'ca'rd column under the punches 12. The card 'being' punched rests on a frame plate 620.
  • the card carriage comprising a rack 630 has an arm 640 at the'rear carrying a pivoted member 650 which drops behind the rear edge of the card being fed and a hold-down cam gripper 660 which engages and holds down the forward end of this card.
  • the rack 6 30 has gear teeth on its lower edge meshing with agear 670 forming part of the casing of a drum enclosing a spiral ring. 1m
  • a bail 700 is mounted on shaft 710 and extends beneath all the interposer bars 17 so that when an interposer is loweredto effect punching the bail 700 is rocked counterclockwise against the action of a biasing spring (not shown).
  • a pawl 730 is loosely mounted on shaft 710 and a spring. 720 attached to an extending arm of the pawl tends to force it into engagement with a series of notches formed on the upper edge of rack 630.
  • a double arm member 810 is also mounted on shaft 710 and arranged to be operated by bail 700.
  • This member is connected to pawl 800 through a pin 820 on member 810 coacting with slot 830 in pawl 800 and to pawl 730 by means of a pin 750 engaging an enlarged hole in the pawl. position the member 810 holdspawl 800 free of the ratchet teeth and holds pawl 730 in engagement with one of them.
  • the automatic control of the punching mechanism includes punch selectors and column'selectors.
  • the column selectors are preferably located in the perforating machine while the punch selectors are preferably located in the accounting machine and operated in synchronism with the accumulator and printing elements.
  • the punch selectors may be coupled for synchronous operation to any suitable counting, ac-
  • Fig. 4 (corresponding to'Fig. 20 of Patent No. 1,822,594) shows an accumulator element 28 for adding the items in a corresponding column of the cards passing through the accounting machine of the Lake patent above referred to.
  • a circuit is completed through ing upon a group change.
  • the clutches are released and the' accumulator and printing cam wheels stopped.
  • the accumulating cam wheels have thus moved a differential amount corresponding to the value of the item.
  • the punch selector mechanism with which the above elements of the Lake construction are associated comprises an idler gear 35 driven from the accumulating element. 28.
  • Gear 35 meshes with a gear 36 freely rotatable on a stationary rod 37.
  • a Staand printing tionary contact ring 38 Associated with each gear 36 is a Staand printing tionary contact ring 38, fixed to the rod 37 ducting segments 40 insulated from each other and from contact ring 38.
  • a brush 41 fixed to gear 36 to rotate therewith, is in constant engagement with ring 38 and is adapted to contact segments 40 successively to conductively connect the segments in turn with the ring 38.
  • Each of the segments 40 corresponds to a numeral on the accumulating'whe'el 28 and when a particular numeral on. the wheel is at reading position, the segment 40 corresponding to said numeral will be in contact with the brush 41.
  • Each gear 36, contact ring 38, commutator ring 39 and brush 41 constitute a punch selecting unit.
  • selecting units There arev as many such selecting units as the number of accumulating wheels but for the purposes of illustration, only three are shown in Fig. 6,.the one characterizedby an after its reference numerals being controlled rain the units accumulator 28a of a group of adjacent denominational order column accumulators, the selector unit with b after the reference characters crresponding to the tens wheel of said group, and the one with c corresponding to the hundreds wheel of the group.
  • each of the commutator segments 40 In series with each of the commutator segments 40 is'a punch magnet 42 corresponding to and adapted for actuating one of the interposers 17.
  • the magnets are connected at one end by a common lead 43 to similar segments on eachof the commutator units. Since only one column at a time is punched, only ten selecting magnets are provided for cooperation with all of the tabulating counters.
  • Each magnet corresponds to the numeral characterizing the commutator segments with which it is in series and operates the punch for perforating the card to designate said numeral.
  • the aforementioned punch selecting units and the magnets 42 are associated ,with a column selector commutator in the punching machine.
  • This *coznmutator comprises a frame bar 47 fixed-to the punch frame 470 in any suitable manner, as for example, by anvend bracket 471' and a bottom angle bracket 4'72 (see particularly Fig. 9).
  • a rear contact rail and insulated from the latter is a row of contact sections 46 insulated from each other and carried by the bar 47.
  • the magnets 42 are in series with one side of a source of current 44, the other side'of which connectsto a contact rail 45.
  • the center lines of sections 46 are a card column apart and the number of sections equalsathe number of columns on a card. 1
  • a contact piece 48 (Figs. 1, 8 and 9) for conductively connecting contact rail 45 and thesections 46.
  • the contact piece 48 also moves the same distance and thus connects each of the sections 46 in succession to the rail 45.
  • Each of the contact rings 38 of the-selectors is removably plugged to one of the contact sections 46.
  • the units punch selector ring 38a is connected to rail 45 through normally, open contacts 50, the lead 51a from the ring being remov abty connected to one side of contacts 50;
  • the ring 38b of the commutator for the tens accumulator is removably connected by lead 51b to. the section 46b corresponding to the card column in which the data on said tens wheel is to be punched.
  • the ring 380 is removably co'nnected by lead 510 to the section 460 corresponding to the card column in which the data on the hundreds accumulator is to be punched. 'Thus if the data on the units accumulator is to be punched in the twentieth column of thecard corresponding to section 460, in Fig. 6 in the punching mechanism, the tens accumulator 28b will be associated through the ring 38b with section 4611 corresponding to the twenty-first column and the hundreds accumulator will be associated through ring 380 with section 460 corresponding to the twenty-second card column.
  • the removable connections of the rings 38 to column sections 46 permits selective association of any cOf the accumulating wheels with any of the column sections.
  • the punching of the card in this column in accordance with the reading of the lmits accumulator is placed under control of the automatic group change control mechanism the operation of which in controlling the "total punching will be explained with reference to Fig. '7.
  • the accounting machine feeds cards successively to analyzing brushes and 61 positioned to read selected group control columns of the cards.
  • the items in these selected columns are not accumulated-orlisted by the machine but serve only as control characters. So long as the designations in the group' con-. trol columns of two successive cards agree, the machine continues to operate to accumulate and list the items in other card columns. Only two group control columns of the card and two sets of group control elements are shown in Fig.7 for.
  • Each set of group control elements comprises aforementioned analyzing brushes 60 and 61 for reading alined group control columns df upper and lower cards, a magnet 63 connected in contacts 68 controlled by said magnet 63.
  • Circuit 69 includes a magnet 70which controls the punch initiating operation.
  • contacts 71 remain closed to complete a parallel circuit 72 through magnet 70.
  • a cam 75 opens contacts '71 but magnet 70 remains energized due to closing of the contacts 68 some time during the card reading cycle if the group designations in the cards under the brushes agree.
  • the punch control magnet 70 is deenergized under control of the group control mechanism, the latter" causes the machine to stop and through printing cam wheels 33 and device 34 usually effects printing of the totals standing on the accumulators.
  • the punching of a card in accordance with the reading on the accumulators thus takes place while the machine is at rest.
  • units punch selector brush 41a is in contact with ,the segment 4011 which corresponds to the numeral standing on the accumulating, wheel geared to said selector brush.
  • the contacts 50 are closed in the manner above described. Assuming switch 76 to be closed, a circuit is established from one side 44 of the power source through line 78, contacts 50, line 51a, contact rings 38a, brush 41a, segment 40d in contact with the brush 41a,
  • a circuit is thus automatically completed which energizes the magnet 42 in series with the commutator segment 40b engaged with brush 41b thereby causing the punch corresponding to the numeral on the tens wheel to operate.
  • contact sections 46 are successively engaged by contact piece 48 to cause successive punching of the reading on the successive denominational order accumulators.
  • entry-receivingaccounting devices controlled by groups of record cards, punches and dies and actuating mechanism to move the punches and dies relatively to perforate a record
  • contact members operated by the devices contacts in said circuit selectively engaged by said contact members during operation of the devices, a contact in said circuit normally open during control of the cards by one group of cards,and means-for automatically closing the Y latter contact upon completion of control by the card group to close said circuit and cause operation of the punches in accordance with the selectiveengag'ement of the contacts.
  • a machine including devices for operating on groups of record cards, punches and dies and actuating mechanism to move the punches and dies relatively to perforate a record; circuits, each for causing said mechanism to effect operation of one punch, a plurality of contacts, each in one of said circuits, means operated by the devices for selecting said contacts, and thereby the corresponding punch circuits and a contact automatically closed during operation of the machine and common to all of the circuits for automatically completing the selected punch circuits tocause operation of the corresponding punches.
  • means for sensing a group change punches and coacting dies for perforating a sheet interposed between the punches and dies one column ata time, selectors, each corresponding to one of the columns to be perforated, said' selectors being operated under card control in accordance with the accumulation of items on all the cards of one group, means jointly controlled by the sensing means and the selector corresponding to the first selected column for operating the punches to perforate the first column and means jointly controlled by the punch operation and the selectors corresponding to the other selected columns for operating the punches I to perforate the other. selected columns whereby the sheet is perforated in accordance with the accumulation of itemsby the selectors.
  • a machine including punches and coacting dies, magnets for selectively effecting operation of the punches, circuits, one for each magnet, a plurality of commutators, each having a set of contacts, one of each set being in one of said.
  • card-controlledmeans for automatically causing the punching machine to perforate one denominational order column under control of the corresponding selector, and difierent means than the last-mentioned for completing the operation of the punching machine'to perforate the other columns under control of the corresponding selectors.
  • a device for controlling a punching machine to successively punch the denominational order columns of a record sheet a plurality of punch selectors, one corresponding to each column to be punched, means for setting said selectors under control of a group of cards in accordance with the total of items on said group of cards, and group-change sensing means for automatically causing the punching machine to successively perforate the columns of the record sheet under control of the corresponding selectors.
  • a device for controlling a punching machine having means for successively punching the columnsof a record sheet, a plurality of punch selectors, one corresponding to each column to be punched, means forsetting said selectors in accordance with the total of items on a group of cards, means for sensing a group change in cards, electrical connections between the punch selectors and the punching means, and means controlled by the group( sensing means upon sensing a group change to automatically successively render the connections of the punch selectors efiective to operate the punching means for correspondingly successively perforating the record sheet column after column.
  • a device for controlling a punching machine to successively punch the denominational order columns of a record card a plurality of punch selectors, one corresponding to each column to be punched, means for automatically setting said selectors in accordance with the resultant of items on a group of records, and groupchange sensing means for causing the punching machine to successively perforate the columns of the record card one denomination after another under control of the selectors only upon a group change in the records.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US285809A 1928-02-28 1928-06-16 Automatic punching machine Expired - Lifetime US1946913A (en)

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DE1946913X 1928-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825503A (en) * 1954-05-03 1958-03-04 Royal Mcbee Corp Combination tabulating and card punching machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825503A (en) * 1954-05-03 1958-03-04 Royal Mcbee Corp Combination tabulating and card punching machine

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