US1874805A - Cash register - Google Patents

Cash register Download PDF

Info

Publication number
US1874805A
US1874805A US390319A US39031929A US1874805A US 1874805 A US1874805 A US 1874805A US 390319 A US390319 A US 390319A US 39031929 A US39031929 A US 39031929A US 1874805 A US1874805 A US 1874805A
Authority
US
United States
Prior art keywords
keys
actuators
actuator
key
positions
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
US390319A
Other languages
English (en)
Inventor
William H Robertson
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR 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
Application filed by NCR Corp filed Critical NCR Corp
Priority to US390319A priority Critical patent/US1874805A/en
Priority to DE1930608869D priority patent/DE608869C/de
Priority to AT133255D priority patent/AT133255B/de
Application granted granted Critical
Publication of US1874805A publication Critical patent/US1874805A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/10—Transfer mechanisms, e.g. transfer of a figure from a ten-key keyboard into the pin carriage

Definitions

  • This invention relates to improvements in registers, calculating machines and the like,
  • the keys representing the amountto be added are depressed to arrest the differential actuators associated with each bank or denomination of keys, on the advance of such actuators from their normal positions.
  • the totalizer is engaged therewith, so that the actuators on their return, will accumulate on the totalizer the amount corresponding with the values of the keys depressed.
  • the totalizer is disengaged therefrom preparatory to a succeeding operation.
  • One object of this invention is to eliminate the interlocks, hitherto considered necessary in total taking and repeat ope-rations.
  • Another objectof this invention is to si'rn- It is obvious from plify and improve the repeat mechanism shown in Robertsons application, Serial No. 169,583, above referred to, and to a great extent, render the machine immune to misoperation either accidental or intentional. As a result, the accidental or intentional depression of amount keys during totaling or repeatoperations, will have no effect upon the excursions of the totalizer actuators, and the danger of incorrect results and of damage and injury to the machine will be avoided.
  • means is provided to disable the usual inter-relation between the actuators and the keys, by equipping the actuators with flexible extensions shiftable, into and out of effective position relativey to the keys, and controlled as to their effectiveness, by the means which controls the machine for making repeat or total taking operations, to allow the diflerential actuators to complete their excursions from and towards normal position, notwithstanding the presence of improperly depressed keys in their paths of travel.
  • the flexible or shiftable extensions with which each of the respective differential actuators are equipped may be positioned to cooperate with the inner end of their respective keys to arrest the differential actuators at the points in their paths of travel, on adding operations, such extensions being shifted out of effective position relatively to the inner ends of the keys, if any be depressed. during total taking and repeat operations, to enable the differential actuators to complete their excursions, irrespective of any depressed key or keys in their paths of travel.
  • Fig. 1 is a cross sectional view of the machine taken substantiallythrough the center, and shows an improved differential actuator equipped with a flexible extension, and means to shift the flexible extension out of cooperative relation with the keys.
  • Fig. 2 is a plan view of the means which controls the positions of the flexible extensions of the differential actuators.
  • Fig. 3 is a detail view of the total taking lever, showing its control of the shifting means for the flexible extensions.
  • Fig. 4 is a detail view of a repeat key, with its control of the shifting means for the flexible extensions.
  • Fig. 5 is a detail view, showing the differential actuator driving mechanism.
  • the illustrative machine is provided with a plurality of key frames 30, (Fig. 1), supported side by side on cross rods 31 mounted at their opposite ends in the right and left side frames 32, only one of which is shown.
  • a denominational row of depressible keys 33 is slidably mounted in each key frame 30 to control the extent of travel of the difierential actuators 35, through which the setting of the denominational type carriers, the indicators, and the addition of amounts into the totalizers 7 O is effected.
  • Each key 33 carries a stud not shown) which cooperates with its appropriate hook on a retaining detent bar 29 to retain the keys when depressed, in such positions until released near the end of each adding operation.
  • Springs 34 restore the keys to their normal positions when released by the retaining detent bar 29.
  • the keys 33 when depressed, also displace zero stop pawls 37 in the'corresponding banks. which pawls normally lie in the paths of the diflerential actuators 35 to arrest the latter upon an operation of the machine, in case no keys are depressed in the corresponding denominational banks.
  • the main drive shaft 43 (Fig. 5) is given one complete rotation counter-clockwise. in any suitable and well-known manner.
  • Cams 41 and 42 fast on the main drive shaft impart a rocking movement first counter-clockwise and then clockwise. to a transmitting lever 44 pivoted at 45. the arms of which lever embrace the cams.
  • One arm of the transmitting lover 44 carries teeth 46 in mesh with teeth 47 on a disk 48 fast to one arm 39 of the restraining and restoring element, so that as the transmitting lever 44 rocks, it swings the restraining and restoring bar 38 first clockwise away from the differential actuators thereby freeing the latter to the actions of their springs 40. and then counter-clockwise to cause the bar 38 to restore the actuators 35 to their home positions.
  • An abutment 49 lies in the path of travel of opposed faces on one of the arms 39 to arrest the restraining and restoring bar 38 at either limit of its travel, to prevent overthrow thereof.
  • the operator In adding operations, the operator first depresses the proper keys 33 to set up the amount to be accumulated, and then operates the main drive shaft 43 to withdraw the restraining bar 38 from in front of the differential actuators 35, whereupon the springs 40 will rock the actuators forwardly in clockwise direction until the latter contact and are arrested by the inner ends of the depressed keys 33, or by the zero arresting pawls 37 in those banks wherein no keys have been depressed.
  • the totalizer is rocked into mesh with the actuators by well known means, after which the restraining bar 38 retraces its path to its home position, picking up and returning the advanced actuators, and as the advanced actuators are thus restored, they rotate their corresponding totalizer wheels 70 to accumulate thereon the amount set up on the keyboard.
  • the wheels comprising the totalizer 70 are journaled on a shaft 7 5 carried by arms 76 fast on a shaft 69, suitable means (not shown) being provided to rock the shaft 69 to engage the totalizer with and disengage .it from the actuators.
  • the totalizer 70 Upon the restoration of the actuators 35, the totalizer 70 is disengaged therefrom, and the depressed keys 33 released and restored preparatory to another operation of the machine.
  • Each actuator 35 (Fig. 1) has associated therewith an individual toothed segment 57 journaled on the shaft 36, the actuators and their segments being arranged in pairs along the shaft, and being jointly controlled by the common restraining bar 38.
  • a broad pinion 56 journaled on a rod 68 swung by arms 67 from a shaft 66 journaled in the side frames 32, couples its corresponding actuator with its segment, there being a separate pinion for each pair or group.
  • the segments 57 are each equipped with toothed sectors 71 in mesh with gears 72 fast on the inner ends of a nest of concentric sleeves 73 surrounding and rotatable about a supporting shaft 74 journaled in the side frames.
  • the sleeves control the positions of type carriers (not shown) to accord with the values of the particular keys 33 depressed.
  • a series of intermediate gears 80 journaled for independent rotation on a cross rod 79 mounted in the side frames 32. mesh with the respective gears 7 2 and with pinions 81 fast with indicator wheels 82 journaled on a cross rod 83 ettending between the side frames 32.
  • rotation of the main drive shaft 43 operates through means (not shown) to rock a shaft 58 (Fig. 4) having an arm 59 fast thereon, and releasably connected by a link 60 with an arm 65 fast on the rock shaft 66 to which the arms 67 of the coupling gear frame are also secured.
  • the arm 65 carries a stud 64 which fits in a notch 63 in the link 60 so that when the shaft 58 rocks clockwise and then counter-clockwise in timed relation with the rocking of the transmitting lever 44 (Fig.
  • the restraining bar 38 reaches its farthest limit of travel at the time it touches the faces 89 on the segments 57. Meanwhile the actuators 35 corresponding with those denominations wherein keys have been depressed, have advanced with the restraining bar 38 and relatively to their companion segments 57, until arrested by the inner ends of the depressed keys, as heretofore explained, and the shaft 69 has been rocked by mechanism, not shown, to engage the totalizer 7 O with the actuators.
  • the shaft 58 rocks counter-clockwise to rock the shaft 66 and restore the coupling gears 56 to effective position, so that, as the restraining bar 38, on its return, picks up and restores the advanced actuators 35 to register on the totalizer the amount set upon the keyboard, the actuators will correspondingly rotate the coupling gears 56 and rock the companion segments 57 counter-clockwise to the same extents that the actuators have ad- .vanced. For instance, if the units actuator 35 advanced five steps and the tens actuator advanced two steps.
  • the segments 57 in their counterclockwise travel turn the gears 72 to set the type carriers (not shown) to print the amount set up on the keyboard, and through the intermediate pinions 80, set the indicator wheels 82 to display the same. amount.
  • Timed means disengages the aliner fingers 84 from the indicator pinions 81 to enable the indicator wheels to be set, and after the setting has been accomplished, the aliner fingers are restored to effective positions to prevent accidental displacement of the indicator wheels and type carriers.
  • the restraining bar 38 On the succeeding operation, the restraining bar 38, on its outward travel, restores the segments 57 to their zero positions, and in so doing (the aliner fingers 84 being withdrawn) returns the type carriers and indicator wheels to their zero positions, from which they are adjusted in accordance with the new amount set up on the keyboard, during the return of the restraining bar 38 to its normal home po sition.
  • a repeat hey lever 62 (Fig. 4) pivots on the shaft 36, and when depressed, sets mechanism to effect repeated addition on the totalizer of the last amount for which the parts have been adjusted, as fully set forth in application, Serial No. 169,583, filed February 19, 1927, above mentioned.
  • the differentially positioned companion segments 57 control the extent to which the diii'erential actuators shall advance, in accordance with the last setting of such companion segments, whether under control of the keys 33, as in adding 0perat-ions, or of the totalizer wheels 70, as in totaling operations.
  • the repeat key 62 conditions the machine to repeatedly add the last amount for which the parts have been adjusted, by interrnpting the drive between the rock shaft 66, and the shaft- 58.
  • the link leading from the rock arm 59 has a notch 63 to fit over the stud 64 on the arm fast on the rock shaft (36.
  • the upper end of the link 60 has a pin 53 entered in a slot in the inner arm of the repeat key lever 62.
  • depression of the repeat key 62 rocks the link (30 clockwise, through the pin and slot (31 to disengage the notch 63 of the link from the stud 64; mounted in the arm 65 fast on the shaft 66, so that no motion will be communicated from the shaft 58 to the coupling gear frame, and the coupling gears 56 remain in mesh With their respective pairs of actuators and the companion segments 57. throughout the entire operation of the machine.
  • the repeat key 62 is provided with an open-ended slot 86 coo 'ierating wit-h the stud 6-1 to latch the rock shaft 66 in its set position, when the link 60 is disengaged from the stud 64, and thus hold the coupling gears 56 in effective positions.
  • the actuators 35 operate through the coupling pinions 56, as explained, to impart to their companion segments 57, extents of travel in counter-clockwise direction, corresponding to the advance permitted the respective actuators.
  • the distances the respective actuators 35 are permitted to advance from their home positions, are determined by the distances to which the upper ends of the slots 87 of the intermediate gears 80 have been positioned from the arresting rod 88 in the previous operation.
  • the actuator 35 there shown would be held, on a repeat operation, against any clockwise movement, due to the companion segment 57 associated therewith being in its zero position, with the upper end of the slot 87 in its intermediate gear 80 substantially in contact with the rod 88.
  • the companion segment 57 had been advanced five steps, for example, from its zero position, it would have positioned the intermediate gear 80 with the upper end of the arcuate slot 87 therein a corresponding number of steps from the arresting rod 88, so that on a succeeding repeat operation, the actuator 35, under the influence of the spring 40 associated therewith, would be permitted an advance equal to the number of steps the end of the arcuate slot 87 was distant from the transverse rod 88.
  • the restraining and restoring rod 38 As the restraining and restoring rod 38 starts its return counter-clockwise movement to normal position, it picks up the actuators 35 that were permitted to advance and re stores them to their normal positions, the actuators, in turn, through the coupling gears 56, again positioning the companion segments 57 associated therewith and their trains of gearing an equal number of steps from their Zero positions, thus repeating the transaction of the previous operation.
  • N ooel feature in machines of the type to which this invention isapplicd, when it was desired to again add the amount last set up on the keyboard, for instance, or to reaccumulate the total, providing it was taken on the last previous operation of the machine, the operator merely depressed the repeat key disclosed in the application for patent of Robertson, Serial No. 169,583, filed February 19, 1927, and if necessary, operated the handle. It will be noted that all keys 33 remain in their undepressed positions during a repeat operation, but with all of the keys 33 in such positions, it was necessary to provide means controlled by the repeat key, to displace the zero stop pawls 37 which ordinarily prevent the advance of the actuators 35 in those denominations wherein no keys have been depressed.
  • repeat key controlled means to disable the zero arresting stops, and the interlocking mechanism between the repeat key and the amount keys materially increased the cost of manufacture, and necessltated a considerable expenditure of time and skill to properly install and adjust.
  • the present invention is designed to obviate all of the foregoing disadvantages, and results, in the provision of a less expensive machine and one which the operator cannot force to render wrong results in the manner above set forth.
  • the actuators 35 have been each provided with a projection or stop rigid with its actuator, to contact its zero stop pawl 37 or the inner end of the particular key depressed, and it was because of this construction that the various disabling and interlockmg mechanisms referred to, were required.
  • adjustable stops or pro ections 55 are substituted for the former rigid form. These adjustable stops are also referred to as flexible means because they may be shifted into and out of effective position, as an incident to conditioning the machine to perform its various operations, as adding, repeat additions, and totaling.
  • the flexible stops or projections 55 comprise slides, one of which is applied to each of the actuators 35, the slides being slotted to accommodate the guide and supporting pins 111 carried by the actuators.
  • the outer ends of the slides 55 project beyond the peripheries of their respective actuators and preferably terminate in lateral cars 54 which normally lie beneath the zero stop pawls 37 when the actuators 35 are in their home positions, and when the zero stop pawls are displaced, traverse a path intersected by the inner ends of the keys 33, and are arrested by contact with such of the keys as are depressed.
  • the actuators 35 are arrested substantially in their home positions, by contact of the outer ends of the slides 55 with the zero stop pawls 37 in those denominational banks wherein no keys have been depressed.
  • the restraining bar 38 completes its clockwise travel, notwithstanding the arrest of the actuators 35 by the zero stop pawls 37 or by the keys 33, the actuators remaining where arrested, until picked up by the restraining bar on its return stroke, as heretofore explained.
  • a spring 101 secured to one arm of a lever 102 fast on the adjusting shaft 100 normally holds the adjusting shaft with its fingers 105 at one limit of its oscillatory movement, wherein the fingers 105 have rocked the adjusting arms 107 counter-clockwise to shift the flexible stops 55 to their effective positions with their ears 54 beneath the zero stop pawls 37, and in position to be arrested by the inner end of any depressed key 33.
  • a stud 103 projects laterally from the repeat key lever 62 into the plane of the other arm 104 of the lever 102 having an open-ended cam slot 112 formed in the end thereof, and limits the clockwise movement of the adjusting shaft 100 after it has positioned the ears 54 of the stops 55 beneath the zero stop pawls 37.
  • the repeat key lever 62 as it returns to its normal position, withdraws the stud 103 from the cam slot 112, thereby freeing the lever 102, arm 104 and the adjusting shaft 100 with its fingers 105, to the action of the spring 101, which thereupon restores the parts to their normal positions, as determined by the position of the stud 103.
  • the fingers 105 as they rock clockwise to their normal positions, rock the adjusting arms 107 counter-clockwise, to draw the flex- .ible stops 55 outwardly to their effective positions.
  • the connection between the stops and their adjusting arms 107 must be such as to permit relative movement, and yet be such that the stops 55 on the return of the actuators to normal home positions, shall again be in positigrns to be controlled by the adjusting arms 1
  • the adjusting arms 107 are forked to accommodate the lugs 110 on their respective stops, and the restoration of the repeat key 62 is timed to occur after the return of the actuators 35 to their normal positions, so that the stops 55 will have resumed their connection with the adjusting arms 107 before the latter operate to shift the stops to their effective positions.
  • Latches 113 pivoted on one of the stopsupporting studs 111, enter notches formed in their respective stops 55, to yieldingly hold the stopsin either effective or ineffective positons relatively to the depressed keys.
  • the latch springs 114 are readily overcome by the fingers 105 and adjusting arms 107.
  • the lugs 110 of the stops 55 on the actuators disengage themselves from the open ends of the slots 109 of the respective adjusting arms 107, and the latches 113 then hold the stops in their proper positions against accidental displacement.
  • the ends of the slots 109 in the adjusting arms 107 are beveled to insure the re-entry of the lugs 110 of the stops 55 in the slots on Lheir return to normal position.
  • Total key control of stops on (inferential actuators Means is also provided to shift the flexible stops to their ineffective positions when conditioning the machine to take a' total or a sub-total of the amount registered on the totalizer 70.
  • the totalizer is engaged with the actuators 35 on the advance of the latter from their normal home positions, to enable the individual totalizer wheels to control the actuators on such advance and arrest them when they have turned their wheels to the zero positions.
  • a totalizing lever 122 (Fig. 3), to control the machine for total and sub-total operations, is pivoted on the rock shaft 36, and has a depending arm 123 carrying a stud 124 projecting laterally into the plane of a cam arm 125,
  • the stud 124 of the depending arm 123 of the total lever strikes the cam arm 125 and rocks the adjusting control shaftlOO in counter-clockwise direction.
  • the shaft 100 through the previously described fingers 105 and adjusting arms 10?, withdraws the stops out of effective position relatively to any depressed keys in the path of travel of the actuators.
  • Interlocks (not shown), but fully disclosed in the previously mentioned applications, are provided to prevent the manipulation of both the repeat key 62 and the total lever 122, during a single operation, and also to prevent the depression of the repeat key when the total lever is out of the add position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Control Devices (AREA)
  • Transmission Devices (AREA)
US390319A 1927-02-19 1929-09-04 Cash register Expired - Lifetime US1874805A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US390319A US1874805A (en) 1929-09-04 1929-09-04 Cash register
DE1930608869D DE608869C (de) 1929-09-04 1930-07-04 Registriermaschine mit Wiederholungsvorrichtung fuer Einzelbetraege, Zwischen- und Endsummen
AT133255D AT133255B (de) 1927-02-19 1930-07-12 Registriermaschine mit Wiederholungsvorrichtung für Einzelbetragsaufnahme sowie Zwischen- und Endsummenabnahme.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US390319A US1874805A (en) 1929-09-04 1929-09-04 Cash register

Publications (1)

Publication Number Publication Date
US1874805A true US1874805A (en) 1932-08-30

Family

ID=23542013

Family Applications (1)

Application Number Title Priority Date Filing Date
US390319A Expired - Lifetime US1874805A (en) 1927-02-19 1929-09-04 Cash register

Country Status (2)

Country Link
US (1) US1874805A (de)
DE (1) DE608869C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581624A (en) * 1952-01-08 Early factor mechanism
US2827230A (en) * 1954-12-29 1958-03-18 Underwood Corp Ten key early entry and index retention mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101832B (de) * 1955-11-21 1961-03-09 Ncr Co Registrierkassen und aehnliche Buchungsmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581624A (en) * 1952-01-08 Early factor mechanism
US2827230A (en) * 1954-12-29 1958-03-18 Underwood Corp Ten key early entry and index retention mechanism

Also Published As

Publication number Publication date
DE608869C (de) 1935-02-02

Similar Documents

Publication Publication Date Title
US1854875A (en) M white
US2503865A (en) Differential setting mechanism fob
US2056536A (en) Calculating machine
US1874805A (en) Cash register
US2189851A (en) Accounting machine
US2105640A (en) Cash register
US3076597A (en) Gelling
US2110903A (en) Cash register
US2079355A (en) Automatic overdraft device for
US3061186A (en) Gelling
US2666573A (en) Differential latch mechanism
US2625323A (en) Cash register
US1791905A (en) A corpora
US2286116A (en) Casheegistee
US1202867A (en) Cash-register.
US1793795A (en) Cash register
US2108884A (en) Cash register
US1755499A (en) Cash register
US1799328A (en) Cash register
US2628778A (en) Tens carry mechanism fob
US1842951A (en) robertson
US1490129A (en) Calculating machine
US1270243A (en) Combined type-writing and computing machine.
US1230864A (en) Cash-register.
US1874164A (en) Total