US1819068A - Overdraft and signal printing mechanism for calculating machines - Google Patents

Description

Aug. 18, 1931. F. -w. BERNAU 1,319,063

OVBRDRAIT AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Original Filed Oct. 31, 1922 15 Sheets-Sheet l b N A mum:

F. W. BERNAU OVERDRAP'T AND SIGNAL PRINTING MECHANISM F R CALCULATING MACHINES Original Filed Oct. 31, 1922 Aug. 18, 1931.

15 Sheets-Sheet 2 F. W. BERNAU OVBRDRAFT AND SIGNAL PRINTING MECHANISM Aug. 18, 1931.

FOR CALCULATING MACHINES I Original Filed Oct. 31, 1922 15 Sheets-Sheet 25 Aug. 18, 1931. F. w. BERNAU OVERDRAI'T AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Original Filed Oct. 51. 1922 15 Sheets-Sheet 4 Q5131 ifiwevuior:

F. W. IERNAU All. 18, 0 Q .81 (WW AND- SIGNAL PRINTING IIOHANISI f0! CALCULATING IAOHINES Original Filed 00?- 31. 1922 15 Snail-Shut B 0.39% ku.\ NPQQQ WMMP A x-18,1931. mm 1,8 8-

F. W. B! OVIRDRAI! AND SIGNAL PRINTING IEQHANISI ton CALCULATING IIAOHINBS Original Filed Oct. 31. 1922 15 Shoal-Shut 6 Aug. 18, 1931. F. w. BERNAU 1,819,068

I OVBRDRAFT AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Original Filed 001:. 31, 1922 15 Sheets-Sheet '7 x I v F. W. BERNAU OVERDRAF'T AND SIGNAL PRINTING MECHANISM 8 w ,t w a 5 1 2 2 9 l 1 3 Aug. 18, 1931.

IOR CALCULATING MACHINES Original Filed Oct.

Au 18, 1931. F. w. BERNAU 1,319,063 g OVERDRAFT AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Original Filed Oct. 31, 1922 15 Sheets-Sheet 9 Aug. 18, 1931. F. w. BERNAU 1,819,063

QVERDRAFT AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Original Filed 001;. 31, 1922 15 Sh'eets-Sheet. l0

F. W. BERNAU I OVERDRAFT AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Original Filed Oct.

Aug. 18, 1931.

1 8 6... 0w 9m 1 S awn 1 .0 s 5 1 2 2 1 1 3 F. w. BERN'AU Aug. 18, 1931. 1,819,068

OVERDRAF! AND SIGNAL PRINTING MECHANISM 20R CALCULATING MACHINES Original Filed Oct. 31, 1922 15 Sheets-Sheet 12 Mk max kRQ Aug. 18, 1931.v F. w. BERNAU 1,319,053

OVERDRAFT AND SIGNAL PRINTING MECHANISM FOR CALCULATING MACHINES Griginal Filed Oct. 31, 1922 15 Sheets-Sheet 13 Aug. 18, 1931. F. w. BERNAU OVEBDRAPI' AND SIGNAL PRINTING NECHANISI r03 CALCULATING MACHINES Original Filed Oct. 31, 1922 15 Sheets-Sheet l4 tmmmL 1931- j F. w. BERNAU 1,819,068

OVERDRAH' AND SIGNAL PRINTING MECHANISM NR CALCULATING MACHINES Original Filed Oct. 31, 1922 15 Sheets-Sheet 15 M larly intended for use in mec Patented Aug. 18, 1981 UNITED snares PATENT OFFICE rnnnnmcx w. 3mm, p m amnion-re mm ammo mnwiurnn conanr; or man. an a conronarmv or m mnsnr a ovmnar'r marouan m9 M103 oawuume um Original application fled October 1. Mal In Divided and this plinth! fled W l V 1.,1. luminescence.

The present ap lication a division of my Patent No. 1, 1,701 October 15,

This invention relates to calculating machines which are adapted fior ggforming addition and subtraction, and if red, for listin numbers and for the results of a dition an subtraction carried on by the machine. 1Q

y present improvemen particu- 'on with the anisms of the well fEllis printing calculating machine, especially the mechanisms set forth in patfiits to Halcolm Ellis No. 1,065,792, June 24,1913 Total nal device; No. 1,197,270, 1 mher 5, 191 Combined addin machine writer; and No. 1,2035 November 7, 1916, Mechanical calculator, are and illustrated in connection with ifmuch of these atented machines as will a a clear understanding of the constructions, operations, functions and vention.

It is to be understood, however, that the present improvements and rinciplce involved therein are not, 1 y, restricted to embodiment in inular to the Ellis machine as these improvements me be used in other calcula the claims are to be an; m; as vcoveriiig an improvements invo I I incip es of he invention in whategridalcul zing machine they may be em loyedi There are certain classes of work which a calculating machine is to handle,

demanding notice to o rthat the an overdraft, thew July he in debit items accumulatedv 1- the credit the du 1e: we H M items; depositors a bank com. tion o mechanism which I lock stitute a class ofwork notifior f r or H 1, cation is important account in means, and t i ch will W the that condition is loxrdrafiuhlimurthermore itisimportan aa" machine not onl signal the fan, that an ac; count is ove rawn but al'aagenable the operator to determine the oi the overas the qhepurpose draftandto rintonthe handled by e machine a count is overdravm or the that amount and to so thefigures overdrawn, the debits ex 9 may be individual or du ex, I have d principles involved in the m scribed balance or mu hey but it is m be underidentifythem that the will be pro-nan m tly zlfisplayed on the sheet and on carbon copies ereo . Modern calcula machines, particularly those intended to dle hanknand, trust compan accounts, are electrically driven under control of a starting bar and I have illustrated the presentimmvements in connection with the starting mechanism of the Ellistmachine, such starting signal, one it): antomaticall lock the starting sbar when an overdraft is present in the the other mechanism of the the balance or total keys by the me of which the balance or total rep .4. m

and shown a d adding and operationahaveheen n8 machine is conducted, is shown when the o ted.

l insure against any. operafion ,.of the machine after the items accumulator and deducted -it cremlt in stood that-the invention is not limited to theconjointueeoithetwo mama except where eoatated in claims recent invention particularly reforlockingtheetart starting bar lock is era to prevent any operation of the machine r h condition of the accumulator in which the after an overdraft has occurred until such starting bar has been purposely released by the operator.

Therefore, when attempt is made to take the balance, and it is found that an overdraft exists, it becomes necessary in order to print the balance, for the operator to manually restore the lock to normal, released, condition in order that the machine may be operated.

To enable this to be done, the locking mechanism is coordinated with the decimal slide of the Ellis machine, such slide being disclosed in Patent No. 1,197,276, in such manner that on operating the slide the lock will be released so that the operator can then print the amount of the overdraft.

However, inasmuch as an overdraft is an important and abnormal condition, it is desirable that it be printed in a distinguishing manner so that it will be easily picked out by the e e. To that end, novel means is provided or printing the item represent ing an overdraft in a distinguishing fashion, as in a different'color, for instance red, and, also, identified by a sign so that the item will be marked in a distinguishing manner on any carbon copies, such distinguishing printing occurring on the next operation of the machine after the lock has been released as that operation causes printing of the amount representing the overdraft. The operation of printing an amount representing the overdraft in a distinguishing color may be carried out by employing a bichrome inked ribbon, and ribbon vibrator therefor, and combining therewith novel means which is automatically set so that when the machine operates after the release of the lock, the ribbon vibrator or shift will be moved for that one operation a suflicient distance to brin the differently colored, say red, section 0% the ribbon in line with the printing type so that a red impression will be made when the amount of the overdraft is rinted, the mechanism immediately therea ter being restored to its normal condition so that succeeding items will be printed in the usual color.

Identification of an overdraft is accomplished by employing means for automatically printing the overdraft with a distinguishing mark or sign. When this means is employed the same overdraft is identified not only on the original ledger sheet but also on all carbon copies being made.

Identification of an overdraft by print ing it with a. distinguishing characteristic may, according to my invention, be had by printing the overdraft in a different color, or accom anied by a sign or signal, or both met ods may be used simultaneously.

The Ellis Patent N 0. 1,203,863, dated November 7, 1916, provides a subtraction key in addition to the usual controlling keys of the Ellis machine; furthermore, both of the accumulators of the duplex calculator shown in that patent are adapted for the performance of either addition or subtraction.

In the present invention I prefer to have one of the accumulators adapted for both addition and subtraction, as with the accumulators of the machine of the Ellis Patent N 0. 1,203,863, and to have the other accumulator a straight adding accumulator. The straight adding accumulator may be of the construction set forth in my Patent No. 1,536,757, dated May 5, 1925.

It is to be understood, however, that both of the accumulators employed in connection with the present-improvements may be adapted for both addition and subtraction as, for instance, in Ellis Patent No. 1,203,863.

While the subtraction key may be otherwise arranged, I prefer to substitute it for one of the controlling ke s, for instance, the Dr. sub-total key. 0 the other controlling keys of the Ellis machine, the sub-total and total keys may be suitably labeled to represent the total deposits and the balance, respectively, and another of the keys may be labeled to represent the total checks, to particularly adapt the machine for use in bank work.

As described and shown the subtraction key of the present machine is adapted to become automatically restored after the machine has gone through its cycle of operation, making it necessary for the operator to hold down the subtraction key by the finger if a series of subtracting o erations are to be carried on consecutively ut as it is a sim le matter to provide latching means for hol ing down the subtraction key, when itis desired to carry on a series of subtracting operations, it is to be understood that such latch may be used. In ordinary bank accounting, it is generally inadvisable to provide means for latching the subtracting ey as this opens the way for forgetfulness on the part of the operator which would result in improper operation in that class of work.

Combined with the subtracting key is special mechanism, substituted for certain of the pieces, cams, and levers of the machine of EllisIatent N 0. 1,203,863 and, additional thereto, a link and a special hook or pawl by which the parts are conditioned so that the accumulator is brought into a condition by which it will perform subtraction on the next operation of the machine. It is to be understood that the foregoing mechanism does not'interfere with the carrying on of addition in the straight adding accumulator as, if both addin and subtracting accumulator and straig t adding accumulator are employed, subtraction can be a1 to t e mechanism of I naiacel carried on in one accumulator addition is being performed in accumulator. Furthermore, a total he from one accumulator, the summit of wh ch may be subtracted from the accumulat on of the remaining accumulator.

If the resent improvements'ire provided in an El 's machine of the clam employing an automatic tabulating meclmniem for shifting the carriage from one tabulated position to another, it becomes necessa y to prevent automatic tabulation on the next operation of the after an overdraft as occurred. Mechanism is provyhen the decimal is position the urose of setting the parts so ins may be released and the overdraft printed, causes the automatic tab mechanism to be rendered ino until the decimal position.

The overdraft mechanism which the lock or locks or signal or heretofore referred to are operated and nisms are set, is under the control of the subtracting pawl or hook of thi highest or der of the adding and subtraotingaccumulater. The subtracting pawl is of the same construction as the cone spending device of the Ems Patent Il'o. 1,203,863. Combined with this mbtractmg pawl or hook and with the ahiit bar o rative aud to remain so do is to normal overdraft mechanisms to are operated to lock flie such as the starting bar once or total keysi duplex, combined, lockin means is employed. Patent No. 1,508,267, September 9, 19:24, I have the ahtomatlc-locking of the total and sub-totaliikeye by a certam part of the mechanism hereinafter set forth but neither the locking of the bar or operatin means nor the combination of the starting lock anditotol and subtotal key lock 18 claimed therein The resent improvements additiom ills machine reference is to be had to the entioned Ellis patents for a full of all mechanisms and their omtlona which are directly or indirectly re to the said improvements. In the following description and accom anymg reference is made to o y so much of Ellis machine as aflord a clear understanding of the relationship of fie present -improvements thereto.

I am aware that may be resorted to in carrying outthaeseenfial principles of the various improvements hereinloclm for key 'Dther mechaor book itself p end of decimal slide, and v referred beforeootlinedandwhlcharehereimfh specifically described and are shown in the accompanying dra It is to be understood therefore, that, constructions speeiiically swim and shown, whileithe preferrod embodiments of the invention as at premnt devised by me, are t" of digit; hhw imid? pa In e accompan p Figure 1 is an ovation of left hand side of the machine, showing, only so much of the mechanisms of the patented Ellie machine as will afford a clear understandmg of such of the present improvements as directly relate to the subtracting he mechunit}I anism for controlling the u a subtract accumulator, overdra ortotal and sub-total. keys, the

being in depressed 'tion and the mechamsms controlled thereby in their set F' .2isasimi1arview,thetotalorbalance and the sub-total or total dsposits ys being locked by the overdraft mechamsm, an overdraft having previously 'o'ccurred, t he subtractionksy being in normal s Fxg. 3 is an elevation at the hand s de of machine, a number 0 mechan sms being omitted for the sake of clearnoes, showing certain partsofthe hand tabelation and automatic tabulation mechamma, the not link for, the overdmft mecha- 'condition normal position, and position to perform automatic t Fig. 41s a v0 view, the side in dotted lines, m the overdraft m 1 d cperatgeroonnectwnstothe locks forthestarta or sub-total lrey,'the ribbon .inechaofthemachmebemgomitwdforthesaheof clear-bathe overdraft mechanism and lock: beeng in nowtion; Fig. Bisa view mechanism, showing the overdraft lock in locked position;

6 is a plan view-of the parts shown ml'iig.8,withcertainomiseiom;

F his a viewsimilar to Fig. 8, the set avmgbeen moved to therig'ht by the manipulation of the decimal slide, the tabulating book being in normal and th tabulating control lever being in position to prevent automatic tabulation;

Fig. 8 is a similarview, the hook having risen andbeing prevented from operating the tabulating mechanismbv the balance and total depositaksye subtracting balance ortotahandtctaldeposits ice I ice III

at the end of the forward stroke of the operating shaft;

Fig. 9 is a plan view of the parts when in the position shown in Fig.7;

F 1g. 10 is a part side elevation and part sectional view showing certain of the mechanisms at the right hand side of the machine and, also, the overdraft mechanism at the left hand side of the machine, the shift bar of the accumulator being set for addition and the overdraft mechanism and starting bar overdraft lock and the ribbon mechanism being in normal condition;

Fig. 11 is a rear elevation of the machine, showing the overdraft shaft and certain of the devices related thereto;

Fig. 12 is a plan view of the overdraft mechanism, ribbon mechanism, and links or bars that control the locks, the decimal slide being shown as having been moved toward the left, the front part of the machine and various mechanisms being omitted;

Fig. 13 is a partly sectional, partly elevational, detail view of the overdraft mechanism as set for carrying on a subtractin operation, before an overdraft has taken p ace;

Fig. 14 is a similar view showing the position of the parts after an overdraft has occurred;

Fig. 15 is a detail side elevation of the ribbon shift mechanism when in normal position for causing ordinary printing, say in black, to occur;

Fig. 16 is a similar view showing the mechanism arranged so that the ribbon vibrator will be shifted to cause rinting in a distinctive color, say red, as w en an overdraft has taken place;

Fig. 17 is a front view of the decimal slide shown in its extreme right hand position;

Fig. 18 is a side elevation of the tabulating mechanism, showing the keys for the typewriter and adding keyboards and their manner of cooperation with the mechanism forsetting the tabulating plungers;

Fig. 19 is a rear elevation of the mechanism of the tabulating'section of the machine showing its cooperation with the tabulating keys of Fig. 18 and the escapement mechanism of the machine;

Fig. 20 is a bottom edge view of the tabulating section of Fig. 19, certain of the parts being omitted;

Fig. 21 is a top edge view thereof;

Fig. 22 is a section on the line 2222 of Figs. 19 and 21;

Fig. 23 is a section taken on line 2323 of Figs. 19, 20, 21;

Fig. 24 is a side elevation of mechanism for automatically printing identifying signs or signals, the parts being in normal position' Fig. 25 is a similar view, the parts being in position to print a subtracting sign;

Fig. 26 is a similar view, in position to print a credit an overdraft;

Fig. 27 is a detail tain of the 24, 25, 26;

Fig. 28 is a detail of a 24, 25, 26; and

Figs. 29 and 30 are views illustrating samples of the printed record.

As set forth in Ellis Patents N o. 1,197,27 6 and No. 1,203,863, the machine is driven or operated, either by a handle, or by an electric drive, neither of which is shown, from a shaft 01. In the accompan ing drawings only so much of the patented llis machine is shown as will afford a clear understanding of the relation of the present improvements thereto. Modern calculating machines, particularly those intended for loose leaf ledger work, are electrically driven and controlled by a starting bar. I have, therefore, illustrated starting bar mechanism for the control of the electric drive such mechanism appearing in Figs. 4, 5,10

and 12.

piece M051 (Fig.

the parts being balance sign, or

side elevation of cerparts of the mechanism of Figs.

link shown in igs.

The shaft 01 carries a 3) which is operated by the electric drive.

Secured to shaft Pl which is mounted in the frame and in the side plate P50 of the printing section is a crank 0160 which is operated from the iece M051 by the printing pitman O61. arried by the shaft P1 is the paper feed leverP74.

Referring to Figs. 3, 4, 6, 7, 8, 9, 10, 24, 25, 26, the signal setting arm which is moved by the cams N 67R and 67NR that swing the frames of the wheels of the accumulators, as shown in Ellis Patent N 0. 1,065,792, appears at 6GP. One of the printing type sectors is shown at P54, pivoted to arm 52P at P10 and adapted to be set by link P53; the signal F which is pivoted to arm P52 at P10, is operated by link 23.55 by improved means hereinafter described, of which the signal lever 61P pivoted at PlOP constitutes a art. p The decimal slide P67 is operated by a slide B53 connected to the hook P68 of the slide P67. The piece B53 has a button 10B and is movable over the scale B154. The decimal slide P67 appears in Figs. 3, 4, 6, 7, 8, 9, 10, 12.

The lever P272 (Figs. 3, 4, 6, 10, 12) controls the automatic turning of the laten.

A plate D50 which is secured to t e left hand end of the operating shaft 01 (Figs. 1, 2) affords the means b which the motion of said shaft is utilized fbr the operation of the accumulators, according to the controls effected by the various controlling keys.

Such of the present improvements as relate tothe controlling keys, including the sub tracting key K67, the balance or total key K63 for the upper accumulator, and the subtotal key or total deposits key K54 are shown more particularly in Figs. 1, 2, 1. p

The lower accumulator is diet shown in detail. This accumulator as y with themechanisms of Figs. 1 all 2, is controlled only for urposes of addition and.

will be constructs as set forth myPatent No. 1,536,757, dated Ma 5,

It is to be understoo however, that the lower accumulator may be a combined adding and subtractin accumulator as disclosed in Ellis Patent 0. 1,203,868 as additional mechanism could be employed jeo that subtraction as well as addition could be carried on in the lower accumulator connection with the overdraft" features of the present invention. f

Onlyso much of the pper otimbined add.- ing and subtrac is s in Figs. 4, 10, 11, as willa'zfl'ord a clear understanding of the operatiblii'of the mechanisms when an overdraft place, and the relationship of this itccuiitulator to the improved mechanisms shown in Figs. 1 and 2 by which the upper accumulator is controlled. Reference 19 to be ha to Ellis Patent No. 1,203,863 for a de disclosure of the general construction and principle of The upper adding and subtracting accumuator.

The mbtmction key subtracting mechanism-The ke used fw' setting the machine so that so traction may be" performed in the upper accumulator is shown at K67 (Figs. 1 and 2gtthiskey' being, in the present instance, su ituted for the Dr. sub-total key K67 of the lower accumulator of the Ellis Patent No. 1,197,276; It is not essential, however, that the Dr'..sub-total key of the lower accumulator be seed with. A latch L160 which is actuate by spring 81L and is pivoted at, L20, is, adapted to latch the subtraction key K67 when the latter is in depressed position. Pivotally connected to the latch L160 at l'h23Lis 0. Ion set link 64L which is provided at N18 wit a pin and is provided at X with a cam slot so fashioned and located the}: the set link is normally sustained in the iosition shown in Fig. 2 by a screw pin N17 projecting from the frame B47 and'on whicli said set link rests. When the subtraction key K67 is depressed, however, the movement of the set link 64L to the left, causes the screw pin N17 to enter the cam slot X- which thereupon allows the set link to dflip to the position shown in Fig. 1. The N1 and 1N carry the cams N673 (Figs. 24, 25, 26) which swing the'rwheels of the upper and lower accumulators into and out o engagement'with the adding racks or actuators, as explained in Ellis Patent No.

1,203,863, and carry on their the cranks N and N65, These cranks have rollers A30 :1

' vely.

ptedtobeheldinthe latch and key being of rearwardly or forwardly arranged A170 and 170A of scissors like dcfiifih it $1? t 1% w are awn or conn them as at No. 1,536, 57, dated a 5, 1925 by which the accumulator is suits 1y held in its enand H- relataontotheadding we;

As shown in Fi 4, 10, 12, 1a 14, the irregular shaped "ft bar N90 0 Patent No. 1,203,863 is employed and on; hand end of this bar there is secured-e crank lever 69N which has a. are stud D13 at its lower end and 0 N19 at its upper end. 8 ring 8211' normally pulls the crank lever 69 in a counterclockwise direction.

A subtracting o sting hook 68R a slot 68H byI whi it is slidahly on the pin 19. This hook is normally drawn rearwardly on the pin N19 by two contractile coil springs N81 located on o posite sides thereofand connected to c pin N19 and to a pin 171'? on the both. One of the 9 rings N81'is obscured by the hook 68N in igs. 1 and 2. A coil spring N8 which is connected to one of the -:17N and to the subtracting detent it serves the double purpose of ten todraw the subtracting operating hook68 downwardly and the subtracting detent N69 upwardly. Beferi-ingagaintol liglandhthcre ispivotedonascrew Last! camL162whichhasscametits than endwith which the pin ([321- on latch L160 normally a: the said pin ri ontheeamendof 62anddep sai cam L162. when the subtraction key is dep as shown in Fig. 1. A can lever 60L is also rvoted on the screw 1 .2511 and is conn cam L162 by a contractile L w normally holds the left hen an of the subcamleverwLr-aisedandincm tact with a coded stud 'L16L on the subtracting cam L162.

A total cam lever 58L is ivoted on screw LQIBL and has its left end abutting a L21L projecting from the on cam L162. The normaliposition of the cam lever 58L is maintained by the ment of the right hand cam notch thereof with in L14L carried by the latch 56L forthe on total or total detposits key K such e same gen construction set forth in Ellis Patent No. 1,197,- 276. A sprin 56L! normally draws the u r and of t e latch 56L against the stem 0 ey K64 so that when the he is depressed the'latch will engage the note thereof, A hardened shoe L is secured by rivets 28D to the left hand end of the subtracting cam lever 60L for coo ration, when set thehe K63,K64an K67,withtheh cried cc D90 on the lower end of flying m-

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