US2480744A - Accumulator of the step by step operated type - Google Patents

Accumulator of the step by step operated type Download PDF

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Publication number
US2480744A
US2480744A US9498A US949848A US2480744A US 2480744 A US2480744 A US 2480744A US 9498 A US9498 A US 9498A US 949848 A US949848 A US 949848A US 2480744 A US2480744 A US 2480744A
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United States
Prior art keywords
wheel
contacts
accumulator
impulse
magnet
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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
US9498A
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English (en)
Inventor
Clair D Lake
Donald R Piatt
Pfaff Wesley
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International Business Machines Corp
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International Business Machines Corp
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
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Priority to US9498A priority Critical patent/US2480744A/en
Application granted granted Critical
Publication of US2480744A publication Critical patent/US2480744A/en
Priority to DEI2202A priority patent/DE972309C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/102—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means
    • G06M1/104—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means electromagnets, clicks

Definitions

  • This invention relates generally to accumulating mechanisms for accounting machines and pertains more specifically to accumulators of the type which are operable step by step by successive electrical impulses.
  • An object of the invention is to provide an accumulator of the impulse controlled type which operates rapidly but efiiciently by effecting positive operation of the wheel actuating means without depending on springs and to reduce the possibility of mis-operations by overthrow of the parts resulting from the high speed operations.
  • Another object of the invention resides in the provision of ratchet-operated accumulator wheel actuating means which is positively reciprocated by an armature reciprocated by two magnets energized in succession.
  • a further object and feature of the invention pertains to the provision of an overthrow or looking means to lock the actuated ratchet wheel against the possibility of overthrow by the high speed operation.
  • Another object of the invention pertains to the provision of two impulse transmitting means which transmits in spaced relation groups of differentially timed electrical impulses to said magnets to effect successive unit operations of the accumulator wheel to enter the desired digit.
  • Another object of the invention is to construct an accumulator of the step-by-step operated type so that said groups of impulses are utilized to effect either addition, or subtraction by the complemental process, whereby for either type of entry operation the accumulator Wheel rotates step by step in the same direction.
  • Another object of the invention pertains to the provision of means to render said two impulse transmitting means effective to transmit groups of impulses to the two magnets before or after an impulse is derived under control of an entry control means, such as a key, or perforated record, whereby additive entry operations or subtractive entry operations by the complemental process may be selectively made.
  • an entry control means such as a key, or perforated record
  • Another object of the invention is to coordinate with the accumulator constructed according to the present invention a units carry means which is simpler than that heretofore devised.
  • Fig. 1 is a view in side elevation of an assembled accumulating unit constructed according to the present invention.
  • Fig. 2 is a plan sectional view taken on the line 2--2 of Fig. 1.
  • Fig. 3 is an end View taken on the line 3-3 of Fig. 1.
  • Fig. 4 is a transverse sectional view taken on the line 44 of Fig. 1.
  • Fig. 5 is a longitudinal sectional View taken on the line 5-5 of Fig. 4, showin the details oi the digit readout unit.
  • Fig. 6 is a sectional view taken on the line 6-6 of Fig. 2 showing a contact operating mechanism.
  • Fig. 7 is a sectional view taken on the line l--
  • Fig. 8 is a sectional view taken on the line 8-8 of Fig. 2 showing another contact operating means associated with the units carry means.
  • Fig. 9 is a timing diagram showing the timing of the electrical impulses.
  • Fig. 10 is a wiring diagram showing the electrical wiring connection of the instrumentalities employed for three orders of the accumulator constructed according to the present invention.
  • each of the accumulator units are carried by a support plate 20 which is mounted in a vertical plane in the machine.
  • a support plate 20 which is mounted in a vertical plane in the machine.
  • a plurality of such units are mounted side by side and electrically interconnected in a manner to be described so that units carries or transfers may be effected from each lower order accumulator means under control of an accumulator wheel wheel to the next higher order wheel. Carried oted on a stud 29.
  • Pivoted on a stud carried by the lever 28 is an operating pawl 3
  • the accumulator wheel assembly .for each or- :der consists .of .an ad ratchet wheel 35, .a ratchet wheel 36 which is associated with the overthrow mechanism to'he described, a ratchet 4 it will be seen that a reduced end .of the shaft 43 .is .journaled in a bracket 44 which is carried by the plate 20.
  • the plate 20 also carries a bushing 46 ,in-which is ,journaled an en- .largedport-ion 43 ofsaid shaft v43.
  • the overthrow mechanism consists of aidetent lever .50 (Fig. l.) which is pivoted upon a stud 5
  • Atensioned :spring :51 is interconnected between tails .of the retrograde -pr.eventing pawl 56 and the overthrow preventing pawl 53, it ,being :obvious that the nor- .mal tension in the spring 51 .causes the overthrow preventing pawl 1.5! to engage the [associated ratchet whee1 36 and the retrograde :preventing pawl 56 toeengage the associated ratchet wheel 31.
  • Lever 28 moves away slightly from the overthrow preventing pawl 50 as the overthrow preventing pawl 50 engages the ratchet wheel 36. This insures that the overthrow preventing pawl 250 is in the path of the next tooth of ratchet wheel 35 just before the-pawl 3
  • the above operation is aeffectedzior each unit entry. Transmisfisionof successive groups of alternating impulses to magnets 2
  • the accumulator unit will be advanced a number of steps commensurate with the number of effective groups of impulses transmitted to the mag- 'nets*2-
  • To enter a single digit only one impulse is transmitted to said magnet 2
  • To enter a digit 3, threegroups of impulses will be transmitted to'the magnets 2
  • Additive entry operations Any suitable type of digit entry control means may be provided to impulse the magnets -'Z-
  • the present embodiment includesmeans for effecting additive entries under control of a perforated record 60 shown in "Fig. 10. 'Therecord analyzing means is shown diagrammatically since it is well known in record controlled accounting machines. As is we'll known, .a differential location of a perforation determines the digital value.
  • to prepare for a unit entry is derived from the perforation in the column analyzed and a subsequent impulseiof the same group-from an impulse transmitting means to magnet 12 positively rocks the accumulator wheel actuating means so .as to actually effect this .unit entry.
  • the entry .circuits vare so conditioned that successive groups of impulses are automatically transmitted in alternating sequence to magnets 2
  • tacts designated CR are contacts which are continually closed and opened in each entry cycle according to the cam formations, the timing thereof beingshown in Fig. 9.
  • Cam contacts CR3 for example, keep the R+ relay energized during the time that the 9-1 perforations in the card are being analyzed.
  • for the units column to enter 9 is from the line 6
  • Fig. 6 pivoted upon a support rod 66 is a double arm 61 having a depending projection 68 coacting with the ratchetv teeth of ratchet wheel 31.
  • the left end of thearm 61 carries a block 69 of insulating material which normally overlies a spring blade of'contacts III.
  • the wheel 31 the tooth in engagement with pro- J'ection 68 will act as a cam to rock the lever 61 counterclockwise to close'contacts 10 and said arm 6'! will be latched in rocked position by having the right terminal end of the arm 61 engaged by a latching notch H of a spring-operated latching bell crank 12 which is loosely pivoted upon a rod 13.
  • contacts '19 Once contacts '19 are closed they will remain closed until the termination of the successive steps of operation of an wheel. Referring now to Fig. 10 and understandin that contacts 10 are now closed in the units order it will be seen that an impulse circuit is closed from the line 6
  • accumulator 999530 would be entered in the accumulator.
  • cam contacts CR2 will transmit one or more pulses to the magnet '22 before the respective 4 and 6 entry units are initiated but such pulses are idle and are ineiiective until the impulse is transmitted to magnet 2
  • Subtraction entries The machine may also be conditioned to effect substraction of amounts represented by a series of cards. Subtracting operations are performed by the complemental process, that is to say, a digit is entered in each order which is the 9s complement of the represented digit. For example, to enter 469 subtractively the number As will be explained the 9s at the left of the significant digit 1-9 of the highest denominational order are entered because in such orders zeros are represented. Also for all zeros in a number a 9 will be entered.
  • Pivoted on the rod '66 is a double arm 8
  • cam contacts CR? will transmit 9 timed impulses to the magnet 2
  • Units carry means The units carry means provides for the entry of a unit to an accumulator wheel when the next lower order wheel passes from 9 to 0.
  • the carry means consists of electrical circuits which operate in a well known manner. For this reason it will only be generally explained and only in as much detail as is necessary to understand how the present accumulator actuating means is utilized to efiect units carries.
  • cam 39 is shown to carry two cam projections 39a and 3% which are alternately effective at each half revolution of the accumulator wheel when it passes from 9 to 0 to rock a double Arm 92 is also pivoted on rod 66 and when rocked by either cam projection 39a or 3912 will close units carry control Contacts 93 may close during an accumulator entry operation and are latched closed by a spring-operated bell crank latch 94.
  • cam 38 is provided with projections 38a and 381) which are alternately effective at each half revolution of the accumulator wheel when it represents 9 to rock an arm I02 and close the 9s contact I03.
  • the energization of the magnet I05 also engages a tail I09 (Fig. 1) of the latch member 85 and rocks the same counterclockwise to disengage it from the right end of the arm 8
  • is now rocked by the spring 82 so as to again close contacts which are now normally held in latched position as previously described.
  • the circuit for energizing the magnet I for all of the denominational orders is under control of a cam CR8 which transmits a single impulse to the magnets I05 of all denominational orders at the time shown in Fig. 10.
  • Total readout means structure fits over a flattened portion II! of the '5 right-hand end of shaft 43 and is secured thereto by a screw H8.
  • the wiper structure consists of wipers H9 and I20, one of which makes contact with a common conducting segment I2I as the other wiper makes contact with digit represent-*' ing contact points which are carried by plate H5.
  • Emitter EM shown in Fig. 10 transmits a series of differentially timed impulses (see Fig.
  • print control magnets I23 A plurality of print control mag-" nets is provided, one for each denominational order, and each is energized by a differentially timed digit representing impulse when print control switches S4, S5 and S6 are moved to the dotted line position.
  • reciprocable type bars may be provided, as is well known in record controlled accounting machines (see patent to G. F. Daly, No. 1,921,454), and print control magnets I05 stop the type bars at differential positions in order to print from selected digit type representing the total. This type of printing mechanism is well known and, therefore, is not shown herein.
  • Resetting of the accumulator is effected when a switch S3 is closed so as to energize the RE relay during the time that cam contacts CR5 are closed.
  • RE reset relay will close the a, b and c relay contacts and open its REd relay contacts. Opening of the latter opens the carry impulse circuit under control of the CR6 cam contacts to prevent improper units carries.
  • Resetting is efiected, in general, by transmitting difl'erenti'ally timed impulses by the emitter EM to each'order of the readout but which impulses are the tens complement of the digit representation in each order.
  • the RE relay transfers its 1-4 and 6-9 relay contacts and opens the 0 relay contacts.
  • an accumulator wheel advanced step by step, actuating means for said wheel moved in one direction preparatory to an advance of said wheel a step, and in the other direction to actually advance said wheel one step, a pair of magnets, armature means attracted by said magnets for moving said actuating means in the two directions as said magnets are energized in succession, a pair of normally ineffective impulse transmitting means for transmitting impulses to said magnets in succession, means to transmit a digit representing impulse to energize the magnet which moves said actuating means in said one direction, and means under control of said energized magnet to render said impulse transmitting means effective to energize said magnets in succession to effect a repeated operation of said actuating means to advance said wheel step by step until a digit represented by the digit representing impulse has been entered.
  • an accumulator wheel advanced step by step to receive a digit entry, actuating means for said "wheel moved one direction preparatory to an advance of said wheel one step, and in the other direction to actually advance said Wheel one step, a pair or magnets, means attracted by said -magnets .ior moving said actuating means in the two directions as the magnets are energized in alternating succession, a pair of impulse transmitting for transmitting impulses to energize said :magnets in alternating succession, the impulse transmitting means which energizes the magnet which moves said actuating means in said one direction being normally ineffective, means for transmitting a digit representing impulse to energize said magnet which moves said actuating means said one direction, and means responsive to the transmission-of said digit representing impulse to render said ineffective impulse transmitting means effective.
  • an-accumulator wheel advanced step by step to receive a digit entry, actuating means for said wheel moved in one direction preparatory to anadvance of said wheel one step, and in the other direction-to actually advance said wheel one step, -a .pair of magnets, means attracted by said-magnets when energized for moving-said actuating means in the two directions as the magnets are energized in alternating succession, a pair of impulse transmitting means for transmitting impulses tosaid magnets in alternating succession to advance said wheel step by step, means 'for transmitting a digit representing impulse, and means responsive to the transmission of said digit representing impulse to render the impulse transmitting means which energizes the magnet which moves said actuating means in said onedirecticn ineffective.
  • an accumulator wheel advanced step by step to receive a true digit, or the complement of a digit
  • actuating means for said wheel moved in one direction preparatory to -an advance of said wheel a step, and in the other direction to actually advance said wheel one step
  • a pair of A and B impulse transmitting means for transmitting impulsesto said magnets in alternating succession
  • selectively operated means operable when addition is to be performed to cause said digit representing impulse to energize said magnet which movessaid actuating means in said one direction and to then render said A and B impulse transmitting means effective to energize said magnets in succession to effect a repeated operation of said actuating means to advance said accumulator wheel step by step until the true digit has been entered, and other selectively
  • a counting wheel of the ratchet type a pawl cooperating with said ratchet wheel, a pair of magnets, armature means attracted by said magnets, means operated by said armature when attracted by one energized magnet to move said pawl idly in one direction preparatory to the advance of the ratchet wheel,
  • a pair of impulse transmitting means forttransmitting impulses to said magnets in alternating-succession, the impulse transmitting means which energizes the magnet which moves said pawl idly in said one direction being normally ineffective, and means responsive to the transmission of a digit representing impulse to render said ineffective impulse transmitting means efiective.
  • a counting wheel of the ratchet type a pawl cooperating with said counting wheel, a pair of magnets, armature means attracted by said magnets, a lever carrying said pawl and operated by said armature when'attracted by one energized magnet to move said pawl idly in one direction preparatory to the advance of the ratchet wheel a step, and move said lever and pawl in another direction whereby said' pawl, in cooperation with 'said ratchet wheel, advances the latter one step, -a

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Devices (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
US9498A 1948-02-19 1948-02-19 Accumulator of the step by step operated type Expired - Lifetime US2480744A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US9498A US2480744A (en) 1948-02-19 1948-02-19 Accumulator of the step by step operated type
DEI2202A DE972309C (de) 1948-02-19 1950-09-29 Antrieb fuer Zaehlwerke in rechnenden Buchhaltungsmaschinen

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Application Number Priority Date Filing Date Title
US9498A US2480744A (en) 1948-02-19 1948-02-19 Accumulator of the step by step operated type

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US2480744A true US2480744A (en) 1949-08-30

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DE (1) DE972309C (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690298A (en) * 1952-12-09 1954-09-28 Ibm Multiorder impulse counter
US2738130A (en) * 1953-04-01 1956-03-13 Ibm Accumulating device
US2759669A (en) * 1949-11-09 1956-08-21 Bull Sa Machines Error checking device for recordcontrolled accounting machine
US2807414A (en) * 1952-06-11 1957-09-24 Ibm Card analyzer
US2833472A (en) * 1953-06-26 1958-05-06 Ibm Accumulating device
US3037696A (en) * 1953-12-15 1962-06-05 Ibm Toll highway recorder
US3217984A (en) * 1960-04-28 1965-11-16 Victor Comptometer Corp Sectionalized, solenoid-actuated calculating machines
DE2756545A1 (de) * 1977-12-19 1979-06-21 Elmeg Rueckholfederaufhaengung bei klappanker-zaehlwerken

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE459165C (de) * 1928-04-19 Ignatz Klejniak Fahrzeug, bei dem zwischen Untergestell und Aufbau eine Federwaage eingeschaltet ist
DE446576C (de) * 1925-07-07 1927-07-05 Gustav Tauschek Tabelliermaschine, besonders fuer Lohnverrechnung
DE476688C (de) * 1927-09-22 1929-06-03 Rolf Hofgaard Elektrische Rechenmaschine
BE354275A (de) * 1928-03-13
DE669245C (de) * 1930-03-11 1938-12-22 Ncr Co Elektrische Rechenmaschine
DE676446C (de) * 1934-03-09 1939-06-03 Siemens & Halske Akt Ges Vorrichtung zum Auswerten der in wahlloser Folge registrierten Angaben von Aufzeichnungstraegern
US2150227A (en) * 1935-10-11 1939-03-14 Ibm Tabulating machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759669A (en) * 1949-11-09 1956-08-21 Bull Sa Machines Error checking device for recordcontrolled accounting machine
US2807414A (en) * 1952-06-11 1957-09-24 Ibm Card analyzer
US2690298A (en) * 1952-12-09 1954-09-28 Ibm Multiorder impulse counter
US2738130A (en) * 1953-04-01 1956-03-13 Ibm Accumulating device
US2833472A (en) * 1953-06-26 1958-05-06 Ibm Accumulating device
US3037696A (en) * 1953-12-15 1962-06-05 Ibm Toll highway recorder
US3217984A (en) * 1960-04-28 1965-11-16 Victor Comptometer Corp Sectionalized, solenoid-actuated calculating machines
DE2756545A1 (de) * 1977-12-19 1979-06-21 Elmeg Rueckholfederaufhaengung bei klappanker-zaehlwerken

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Publication number Publication date
DE972309C (de) 1959-07-02

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