US823474A - Adding-machine. - Google Patents

Description

PATENTED JUNE 12, 1906.

A. MAOAULEY. ADD MACHINE. APPLIOA ILED JUNE 9,1903.

5 SHEETS-SHEBT 1. Jfz'q/ PATENTED JUNE 12, 1906.

A. MACAULEY. ADDING MACHINE. APPLICATION FILED JUNE-9,1903.

5 SHEETS-SHEET No. 823,474. PATENTED JUNE 12, 1906.

A. MAGAULEY. ADDING MACHINE.

APPLICATION FILED JUNE 9,1903.

5 SHEETS-SHEET 3.

No.823,474, v PATENTED JUNElZ, 1906. A. MAOAULEY.

ADDING MAGHIN'E. APPLICATION FILED JUNE 9,1903.

5 SHEETS-SHEET 4.

'PATENTED JUNE 12, 1906.

A. MAGAULEY. ADDING MACHINE. APPLICATION FILED JUNE9,1903.

5 SHEETSSHEET 5.

I massage UNITED* STATES rJA'rENT omen-' ASSIGNMENTS,'TO BURROUGHS DETROIT, MICHIGAN;

ADDINGr MACHINE COMPANY, OF

ApDme-mAoHmE.

I w r Be it known thatIfALvAN MACAULEY,-a

' :citizen of the United States, residing at-St.

' Louis, in the State or Missouri, have invented 5 certain new and useful Improvements in Adding-Machines, of which the following is a 7 description, reference being had to the accompanying drawings, forming a part of this 1 speclfication. i 'Y o My invention relates more particularly to J improvements upon what 7 is commonly known as the Burroughs, adding-machine, illustrated and described in various Letters Patent of the United States, granted to Williams Burroughs, of which it will suffice to refer to'Nos. 504,963 and 505,078, dated Septemher 12, 1893; but-it is a licable in its essential featuresto other adding-machines .of a similarcharacter or intendedforasimilar ose. I 1 P1 1 v e Burroughs machine and others of simi- 'lar character areier'nployed in banks and counting-houses for the purpose of printin lists of items or amounts,- adding 11' such lists and printing'at any time the tota oi' the added items; As heretofore constructed, there has been .no' efficient or satisfactory provision for distinguishing in the lists of that at-the-be' of: operations the ma-'- chine shall be clear 7- 1 13., that the adding I wheels'shallhave nothing added upon them and shall stand at zero or initial position-so that when a list of individual items is printed and added and the machine then operated to' print the total of such list the proper amount of such total 'willbeprinted and not have included in it any" amount standing upon the adding-wheels at the beginning of 5 o erations' In the ordinary use of niac es of this character the'printing of a total clears the machine or'return's the adding-wheels to zero or initial position, and it Specification ofiLetters Patent.

Qpplioatinniiled June 9,1903. Serial No. 160,717.

vision of means for causing a distinguis printed items of amounts, I particularly tor of the machine while't e operator is in :normal position for operating the machine --and 'theprovision, of means for Patented June is, race.

is therefore the practice at the beginning of operations to operate. theinachine in the manner to print a total in order. to insure that the machine is clear before he the printing and addition of the individual items to belisted. In these machines as heretofore constructed if the machine is o erated in a manner'to print a total when t e adding-wheels are. already at zero or initial position nothing be printed upon the sheet of paper,'and there. will therefore be nothing upon such paper to indicate whether or not the machine was' cleared at the begin ping of operations.

1 Another object of my invention is the pilgg 7 mark -or character to be printed upon the paperwhenever,the machme is cleared, to thus indicate at thehcad of' a column ofitems that the'machine was cleared before ,the first itemwas printed.

Again, in the Burroughs machine and others as heretofore constructed the arran emerit of the printing mechanism has usua y been such that the printing point or line has been concealed from the view of the oper- 8o ator" so that a printed item cannot be seen unti advanced-from the rinting-point by a movement-of the paperceding mechanism; Giving tothisarrangement of the printing devices also it has been difiicult to adjust the pa er upon which the items are to be printe tothe exact position required for the printing of items or columns of items at a givenpoint u on the aper, articularly where vertical y-ruled s eets 0 paper for tabulated work are employed.

- My invention has for one'of its objects the provision of-means for effecting the printing of items andamounts'in-si ht of the opera- 1' the latter being shown partly in section;

Fig. 8, a detail top plan viewof the printing IOC devices at the rear of the machine; Fig. 4, a detail side elevation of the type-segments and associated devices; Fig. 5, a view correspondin to Fi 4, showing means for printmg mar s or c aracters indicating both totals and subtotals; and Figs. 6, 7, and 8 views of printing done by the machine.

The same characters of reference are used to indicate corresponding parts in the several views.

For a detailed description of the construc tion and operation of the machine illustrated in the accompanying drawings reference may be had to the prior patents above mentioned and earlier patents referred to therein. It will suffice here to explain that the keyboard of the machine comprises a plurality of rows of keys 221, Fig. 1, extending from front to rear of the machine, the keys-in each row being numbered to represent the nine digits and K the keys in the respective rows representing different denominations 'in increasing order from right to left.

Within the machine upon a central rockshaft 600, Fig. 2, are hung a plurality of levers B, (one for each row of keys,) whose downwardly and forwardly 'extendin arms 611 carry at their forward ends upwardly-extending gear-toothed racks 610, whose teeth are adapted to mesh with the pinions 916 of the "adding-wheels, which are mounted upon a shaft .955 in the lower forward part of the machine, said shaft being itself mounted in a rocking frame, hereinafter described. The

rearwardly-extending arms 611 of the levers B carry at their rear ends the type-plates 618, Figs. 4 and 5, whose type are adapted'to be forced against the platen-roller 619, over which the strip or sheet of paper upon which the printing is to be done is passed.

Each lever B is held in the normal osition shown in Fig. 2 by a latch'controlle by the corresponding rows of keys in'the keyboard of the machine, and when any key in anyrow' is depressed the latch of the corresponding lever is tripped and the front end of the lever and the rack 610 carried by it are released, so that they may (later) swing downward until arrested by a stop projected into the path of one of the moving parts by the operated key.

The downward movement of thefront end of the lever B will be accompanied by an upward movement of its reariendfwhich carries the type-plates 618, and the adjustment of parts is suc that the movement permitted the lever prior to its being arrested by the stop of the operatedkey will bring the particular type representin the value ofsuch key into printing posit on immediately in front of the laten 619. The levers B do not move imme iately upon the tripping of their latches by the operated keys, but only upon the subsequent movementof the operatinghandle 367, Fig. 1. This handle is secured upon the projecting right-hand end of a stub forwardly extending levers 613, which are connected beneath the front ends of the levers 611 by a cross-bar 617, whose opposite ends extend upward along the sides of the outside levers 611. The operating-handle and parts moved by it are yieldingly held inand returned to normal position by suitable springs, so that when the operatin -handle is pulled forward the frame composed of levers 613 and cross-bar 617 will beswung downward and rearward, and when the operating-handle'is released said frame will be swung forward and upward again to normal position. This frame constitutes the restoring or resettin frame for the levers B, its downward an rearward movement at the operation of the handle ermitting such levers B as have been released by the tripping of their latches to swing downward until arrested. by the stops of the operated keys, as heretofore explained, and the return forward and upward move- -ment of the frame serving to restore such levers to normal position upon the release and return of the operating-handle.

If the racks 610 of the levers B remained in mesh with the pinions 916 of "the addingwheels during the downward movement of the racks, at the forward movement of the operating-handlethe pinions and addin wheels would be turned distances corresponding to the values of theoperated keys. In

the present "instance, nhowever,' the pinions 916 are swung forward out of gear with-the racks 610 at the forward movement of the operating-handle and downward movement of the released racks, so that they are not turned by the racks during the downward movement of the latter; but at the return upward movement of the parts the pinions are swung rearward into gear with the racksv and turn ed by the latter distances correspond,- ing to the previous downward movement of the racks. This is accomplished by mounting the supporting-shaft 955 of the pinions" 916 in .a swinging frame composed of two side arms C, located at opposite sides of the machine and fast upon the opposite sides of. a rock-shaft 900. The upper end of one of these arms C is bifurcated, as shown in Fig. 2, and cooperates with a stop 205, which limits the forward and backward movement of the rocking frame carrying the pinions.

This rocking frame is operated :for the purpose mentioned in the following manner and by the following means: Pivotally supported upon a stud 941, projecting inward from the left-hand side frame of-the machine, is a three-armed lever 913, whose vertically-depending arm has pivoted to its lower end the rear end of a forwardly-extending arm 914,

' and fin er-button 265 constitute the total- .tobe referred to here.

' purposes to say that the upper end of t e link 20 key of t e machine, which is 'eldingly held in and returned to its normal position, Fig. 2, by springs acting upon other parts of the machine connected with it and not'necessary It suffices for resent 91.1 is supported by the ey or bell-crank 227 and t at the lower end of the link is piv- .oted to and supports the forward end of the arm 9,14. At its front end this arm 914 is di-' vided into two diverging arms 914 and 914', the former of which extends upward immediately adjacent the 'side arm C of the rocking frame carrying the train of pinions and is provided with a notch engaging a stud 958 upon said side arm. Under this arrangement of pzrts it will be understood that if the arm 914 swung bodily forward by forward movement, of the lower end of the vertical arm of the lever 913 and lower end of the link 911 it .will force forward the rocking frame carrying the pinions and disengage them from the racks 610. This movement of the parts is accomplished at the forward movement of the operating-handle by the following means: J ournaled in the lower middle part of the machine is a rock-shaft 800, connected with the rock-shaft 367 a which carries the operatinghandle in such mannef that the forward movement of the handle rocks the shaft 800 backward in the direction of the arrowin Fig. 2. Fast upon the shaft 800 is a three-armed lever 813, whose upwardly and forwardly extending arm 813 carries a pivoted wi or block or plate 821, adapted to cooperate with studs 961 and 961*i-upon the backwardly andv forwardly extending arms of the three-armed lever 913. A contractile spring 883, connected by a rod or wire to the lower end of the pivoted plate 821, tends to swing said plate into alinement with the lever-arm 813, upon which the plate is pivoted, and in the position of the parts shown in Fig. 2 holds the upper end of saidplate against the rear side of the stud 961". When the operating-handle is pulled forward and the. shaft 800 thereby rocked in the direction of the arrow, the u ward and rearward movement of the leverarm 813* will engage one of the shoulders of.

the pivoted plate 821 with the stud' 961" of the three-armed lever 913, thereby forcing upward. the forward arm-of said lever an foreexplained, its lower end will be swun that as the levers61 1, carrying t mg forward its depending vertical arm,

SWlIl whic latter will force forward the arm 914 and cause its upwardly and forwardly ex-- forward end to a fixed stud and at'its rear end to the rear arm 917 b of the lever 917 yieldin gly holds said leverin the osition shown'in Fig. 2, with the front end ofhrs arm 917 engaged with the'lower end of the side arm C of the rocking frame carrying the pinions and adding-wheels and servin to hold the latter in their normal rearwar position. When the upper end of the rocking frame 0 is swung forward in the manner and by the means berearward forcing downward the front end of the lever 917* as the ointed lower end of the side arm 0 of the ame passes over the .end of the lever-arm, and the latter then enga es the forward side of the pointed. lower end of the side arm and yieldingly holdsthe pinion-carrying frame in'its forwardly-rocked osition; The 0 erations thus described,

ue to the forwar movement of the operating-handle, will have swung the lever-arm 813 andits pivoted plate 821 rearward into proximity w1th the stud 961 on the rearwardly-projecting arm of the'lever 913, and at the end of the forward movement of the operating handle the pivoted plate'821 will stand in substantially the same relation to g the stud 961 that it occupies in'respect to the stud 961 in Fig. 2, its u perend bearing a ainst the forward 'side o the stud and the p ate itself being rocked upon the lever-arm -813 .to a position opposite that occupied by it in Fig. 2. At the return or backward movement of the operating-handle the rockshaft 800 will be rocked forwardto normal osition, and asthe lever-arm 813 swings orward the rear shoulder upon the ivoted plate 821 will enga e the stud 961 o the le' 'ver 913 and force t e rearwardly-prqectmg sition, and in this backward movement the arm 0 will carry the rocking frame with it, owing to the engagement of'the notched end of the arm 914 withtheetud 958 upon the frame-C, thereby rengagrngthe p nlons 9-16- with the racks 610 at the beglnnm of the reandle, so racks, are returned to normal position by the restoringturn movement-of the operatingframe 613 to 617 the pinions and addingplaten 619 the respective types corresponding to the values of the operated keys, and while the parts are in such position at the end of the forward movement of the-operatinghandle those types are forced rearward against the platen by means of strikers or hammers, hereinafter described, to effect the printing of the amount represented by the operated keys, an inked ribbon being passed between the types and the paper upon the platen-roll. v

Under the operation above described merely the amount of the individual item represented by the operated keys will be printed upon the strip or sheet of paper, and

it will be next in order to explain how the total of all of the amounts or items accumulated upon the adding-wheels may at any time be printed. It will be understood that if the pinions of the addin -wheels werelallowed to remain in mesh with the racks 610 during the downward movement of the latter the pinions would be turned backward by the downward movement of the racks. The pinions are free to turn backward upon their shaft 955 to but not beyond zero position. If, therefore, any rack be allowed to'swing downward while in mesh with its pinion, it will turn such pinion backward until the pinion reaches zero position, whereupon the arresting of the mi'on will arrest the movement of the rac Thus if the pinion and its adding-wheel be standing at 9 it can turn backward nine-tenths of a revolution and the rack engaged with it can move downward a corresponding distance. If it be'standing at .5, it can move backward five-tenths of a revolution and the rack a corresponding distance, and so on, with the result that if all of v the racksbe released and the operating-handle be drawn forward while the inions are permitted to remain in mesh wit the racks each inion will be turned backward the exact'distance which it has been movedforward from zero position, and the racks will all' be permitted to move downward -corre sponding distances, and this downward movement of the racks will cause corresponding upward movements of the type-plates 618, carried by the rear ends-of the levers B, so that there will be broughtto the printingline the types corresponding to the numbers types at the printing-line at the rear end of the machine, so that by then forcing said types rearward against the laten the total of all the items previously ad ed upon the adding-wheels may be printed-upon the strip or sheet of paper. The pinions are left in rnesh with the racks whenever it is thus desired to print a total by throwing out of operative position the. arm 914, whose forward movement disengages the inions from the racks in the manner hereto ore explained. This is accom lished by depressing the total-key 265, w ich through the medium of the link 911 swings the front end of arm 914 downward and disengages its member 914*- from the stud 958 upon the pinion-carrying frame C, so that when the operating-handle is then pulled forward the arm 914 will move idly forward and leave the frame 0 in its normal position, with the pinions 916 in engagement with the racks 610.

If the pinions were permitted to remain in mesh with the racks during the return upand backward movement of the operating? handle they would be turned forward again to the respective positions which they occupied prior to the operation of printing the total in the manner described, so that at the end of the operation there would remain accumulated upon the adding-wheels the amount which had previously been added up on them, and succeeding items or amounts would thereafter be added to this aggregate of the preceding items. This is permitted when it is desired to merely print what is termed a subtotal and not clear the machine; but for the purpose of printin what may be termed a grand total and c earing the machine means are provided for swinging the pinions of the adding-wheels out of enge gement with the re cks prior to the return upward movement of the latter, so that the pinions and adding-wheels will be left in zero position at the end of the operation of the machine and the latter be therebcleared. This is accomplished by means of t e hooked lower end of the depending member 914 of the arm '914, which hooked end is adapted to when the arm 914 is moved forward at the. forward movement of the operating-handle the hook catches over the stud'958 and when the arm 914 is then drawn rearward again at the beginning of the rearward movement of the operating-handle, as heretofore .saaerc t p explained, the engagement'ofthe hookwith held down while the operating-handle is to swing upward (and to draw the front'end .of the arm glupward withit) 'backwardmovement of the han result that the hooked arm 914 will not engage the stud 958 upon the rocking frame 0 ,at the backward movement of the handle and 7 the pinions will be left in mesh'with the racks I description, the operation of printing a total I eration of printing a subtotal and not clearing the mschine consists in depressing the total: 3-

I tion and descriptionwillbe givenhere as may be necessary to an understanding of my pres-- ent invention. Referring to Fig. 4, it will be racks, so that the latter may move upward to ing the totl-ke ,pression of the total-key serves by means not tent permitted by the respective pinions with which they are engaged. 4o.

618'; Theseplates are mounted radial ,guideways upon the sector-shaped end of the plate carries two' type numbers, the upper-'- below it the nine digits in regular order.

\ are forced rearward against the platen 619 by the stud pulls the lower end oftherocking: frame 0 rearwardand swings its uppen end forward and disengages. the pinions from the normal position without turning thepinions. In printing a" subtotal and/net clearing the machine-the total-key 265 is depressed. and

drawn forward, but is released and permitted dprior to the c, with the during the return upward movement of the latter and be thereby turned forward again to the positions which they occupiedprior to the downward movement of the racks.

As will be understood from the foregoing and clearing the mt chine consists in depress 265 and holding it down during both the orward and b: ckward movements of the operating-handle, while theopkey and pulling forward the operating-handle and then releasing the key prior to thebackward movement of the handle. The denecessary to be described in detail to trip the latches of all of the racks, so that the latter will be free to move downward at the forwardmovement of the operating-handle to the ex- It will next be necessary to explain the means employed for forcing the types 2 g; inst the pl .zten-roller 619 to effect the printing. These means are illustrated and described in detail in the Burroughs patent, No. 505,078, heretofore referred to, and only such illustraseen that the rear end 611 of eachof the levers B (which carry the racks at their forward ends) is extended into the form of a sector, upon which are mounted the-type-plates lever and are yieldingly held in retracted or j forward position by springs 682,-so that theymay be forced radially outward'or rearwardand then retracted by their springs. Er-ch most type on the upper one of the five plates on e: ch lever representing a cipher, and those x The type-plates upon'the respective levers means of hammers or strikers 715, fulcrumed .attfieir lower 'rear ends upon'a rod 701-and provided'withcurved slots w, in'which fit,

studs'741,2carried by bent" levers 7 16; fulcrumed ona rod 702. Coiled springs 780, is

connected to theforward ends 0 thelower horizontal arms of said levers. 716, tend to 7 swing their vertical arms rearward and carry their studs 741- through the slots w iii-the strikers '71'5,fand.- thereby swing the upper I are adapted to be tripped byhooked tripPingpawls 718, hung upon a rod 704,. supported in the upper ends of a pair of side arms 71 1, Fig. i

5, fastened at their lower ends upon afitockv shaft 703. At each operation of the machine at the end of theforward movement of theiopdirection to swing the rod 7 04 and the a n 718 carried by it in av forward direction, and

crating-handle the shaft: 703 is rockedsin' a the hooked ends of the pawl engage shoulders upon the upper sides of the latch-plates 717 and lift the lower rearends of the latter and release the levers 716, which levers arethereu on rocked by the springs 780 and'by their s ot-and-pin connections with the levers 715 throw the upper ends of the latter rearward against the typegplatee which are at the time in line between them. and the platen-roller 619. .v

In the Burroughs machine as manufactured and as described in the prioripatents provision ismade for tripping the latches 718 successively from left to right and for preventing any latches being tripped at the left of the left-hand lever 611, which may be operated .so as toavoid the printing of unneces sai'y ciphers at the left of the figures making up the printed item; but these features of the machine have nothing to do with my present invention and need not be described.

the typeplate is forced rearward against the platen; A striker or hammer 715 and coop- Coming now to the first of the improvecrating devices, such as have been described,

is proyided for this typ'e'mlatefilSf. Such hammer forms the rlght hand one of the group of vhammers may therefore be as-- sumed to be the one exposed to view in Fig.

4, the other hammers being hidden by the one there shown. There is a lever 716, latch 717, and tripping-pawl 718 for each hammer, and that-shown in Fig. 4 may be assumed to be associatedwith the hammer 715, which cooperates with the type-plate 6123*, those for the remaining hammers at the left being hidden by those shown in Fig. 4. At the upper left-hand cornerof the view shown in Fig. 4 there is a rock-shaft 1, (also shown in Figs. 2 and 3,) to which is secured a down- 'wardly and rearwardlyprojecting arm 2, provided at its lower end with an inclined rear edge 3 and also having on its forward side a dependin branch arm 2*, normally'resting against t e shaft 600 and limitin the forward movement of the arm, 2. hen the arm 2 is in the position shown in Fig. 4 and the rod 704, carrying the pawls 7 18, is swung forward, the upturned forward end of the will therefore not be released when the machine is operated with the arm 2' in the position shown' in Fig. 4, and nothing will be printed upon the paper by the type carried y the special plate 618. As shown in Figs.

,2 and 4, however, the rock-shaft 1 has secured to and depending from it a second arm 4, provided at its lower end with an openslot or notch in which fits a stud 5 upon a link 226, which is connected at its forward end to the depending arm of the bell-crank lever 227 and at its rear end having a slot-and-pin connection with the lower'end of a lever 219, fast by swung upward and rearward out of the upon a rockshaft207. When the total-key 265 is depressed, therefore, and the link 226 forced rearward, the shaft 1 will be rocked and the lower end of the arm 2 carried therepath of the upturned rearend of the pawl 718, so that in this position of the parts the hooked front end of the pawl will engage and trip the latch 717 when the pawl is swung forward, and thereby release the hammer 715 and permit it to be swun rearward against the type-plate618 and owe the type carried by the latter against the platen 619 to print the asteriskor other character represented by such type. y In this manner and by these means whenever the total-key 265 is depressed and held down during the forward and backward movement of the operatinghandle for the purpose of printing a total and clearing the machine the asterisk or other special designating character will be printed the paper.

upon thepaper immediately at the right of the printing of the total thereon, and thus indicate that the amount with which it is associated represents a total and not an individual item, as shown in Fig. 6. Likewise if after a total has been .printed and the machine cleared, but before any individual items have been printed, the total-key be depressed and held down while the operating-handle is moved forward and backward the devices cooperating with the special type-plate 618 will be operated in the same manner as if a total were being printed, with the'result that the asterisk or other designating character will be printed alone upon the paper. This furnishes a convenient means for indicating at the be inning of operations that the machine is c ear, for if the special designating character is printed alone at the head of a list of, items It will always indicate that the machine was clear at the beginnng of the printing of such list, as in Fig. 7.

The foregoing arrangement is efiicient and satisfactory for the two purposes described; but for the purpose "of printin two separate characters to designate and di tals and subtotals, respectively, I provide the arrangement of devices shown in Fig. 5, where instead of mounting the special typeplate 618 upon a fixed part of the framework of the machine I mount it upon the rear end of a lever 6, fulcrumed at 7 and having pivoted to its forward end the lower end of alink 8, connected at its upper end to the forward end of a bent arm 9, fast upon the rock-shaft 1. The type-plate 618' is provided with two type characters, the lower one of which designates totals and the upper one of which designates subtotals. Any suitable characters for this purpose ma be employed-as, for instance, the letter T for totals and the letter S for subtotals. The up er one of these ty e characters stands normal y at the printingine, while the lower one is brought to the printing-line when the rear end of the lever is swung upward by the depression of the total-key 265, which serves to rock the shaft 1, as before explained, and said shaft communicates such motion through the bent arm 9 and link 8 to the lever 6. j If stinguishto-' the total-keybe depressed, therefore, and held down durin movement 0 the operating-handle, the typeplate 618 willbe forced against the platen while the rear end of the lever 6 is in elevated position and the lower type upon the plate at the, line of rint, so that the character represented by t e lower type will be printed upon When, however, a subtotal is to be printed, the total-key is released at the end of the forward movement'of the 0 erating-handle or very beginning of its bac ward movement, so that the lever 6 will drop back to normal position, bringing its upper t pe to the printing-line, and for the purpose 0 causthe' forward and backwardarrangement of devices illustratedinFig. 5":-

In the construction there illustrated the lower end of the arm 2 and the tripping-pawl 718 cooperating with it of Fig. 4 are dispensed with and other means provided for tripping the latch.717, which engages the lever 716, cooperating with the hammer 715,

'which strikes the special type-plate 618*;

To this end the latch 717 is provided with a stud 9 which projects to the right over the rear end of-the upper horizontal arm 'of a bellcrank 10, fulcrumed upon the shaft 700 ard provided upon the lower end of its vertically 1 depending arm with an antifriction-roller 11,

adapted to cooperate with the upper end ofatripping pawl or lever 12, fulcrumed near its middle upon a lever-arm 13, su ported at its rear end upon the rod 701 and aving a slotand-pinconnection at its forward end with the lower end of a curved link 13, which is pivoted at its upper end tothe forward end of the bent arm 9., fast upon the rock-shaft 1.

Fast upon the shaft 702 (which is a rock shaft) is an upwardl and forwardly rojectingarm 14 provide with an outwar ly-p'ro- 'jecting stud 15. At each forward movement of the operating-handle the shaft 702 is rocked rearward, swinging the arm 14 in that direction and carrying the stud 15 upward and rearward beneath the lower end of the lever 12, carried by the arm 13. The lower end of the lever 12 is above the path of travel of the stud 15 when the parts are in the position shown in Fig. 5; but when the front end of the arm 13 is depressed thelowerend of the lever 12 is lowered into the path of travelof the stud. 15 on the arm 14. A spring 16, connected to the upper end of the-lever 12, yieldingly holds it in normal position. against the forward side of the antifriction-roller u on the lower end of the, bell-crank 10, and w en the arm 14 is swung rearward (with the leverarm 13 in de ressed position) the stud 15 will contact with the lowerend of the lever 12 and rock it idly upon its pivot as it asses by; but as the arm 14 is swung forward again at the backward movement of the operatinghandle the stud 15 will contact with the rear side ofthe lower end of the lever 12 and rock it in the opposite direction, with the result thatits upper end will force rearward the lower end ofthe vertical arm -of the bellcrank 10 and throw upward the rear end of its horizontal arm, which latter willlift the latch 717 with whose pin 9 -it is in contact,- tripping said latch and releasing the lever- 716,wh1ch cooperates with the hammer 715, associated with the type-plate 618, with the result that said hammer will be swun rearward'into contact with the plate am? drive the latter against the platen-roller 619..

. As will be understood from the fore oing 7 description, whenever the total-key o the machine is depressed and held down duringthe forward and backward movement of the operating-handle the lever 6 will be rocked .on its fulcrum 7 and the lower ty e upon the type-plate 618 be. brou ht to t e printin line. The front end of t e lever-arm 13 W1 1 also be depressed and carry the lower end of i the lever 12 into the path of the stud 15 upon the arm 14, which stud at the return backward movement of the operating-handle will rock said lever 12 and cause it to tri the latch of the hammer cooperating with the type-plate 618*, and thus print u on the strip or sheet ofv aper the type character designatin a total. If this printing is effected at t e time of clearing the machine, such character will be printed at the right-" hand end of the amount representing the total, while if it be printed by operation of the machine after the latter has been cleared and preparator to the printing of a new list of 1tems it wi 1 be printed alone upon the paper and serve to indicate that the machine as been cleared, as before explained.

The foregoingarrangement suffices for the printing of the total character whenever the machine is operated in the manner described;

but additional provisionis necessary for the printing of the character designating subtotals. jAs heretofore explained, this character is "represented by the upper one of the two t es upon the type-plate 618 and must there ore be printed while said type-plate is in its lower or normal osition. At the operation of printing a su total the total-key is released at the end of the forward movement or beginning of the backward movement of the operating-handle, as before explained, which release permits the rock-shaft 1 and parts connected with it (including the lever 6, carr ingwthe t e-plate 618*) to return to norma position; .ut if .the lever-arm 13,

which is depressed by the rocking of the shaft 1 consequent upon the depression of the total-key, as heretofore ex lained, were permitted to resume its norma position, at the release of such key the lower end of the lever .12, carried bv such arm, would be lifted out of the path of the stud 15 upon the arm 14, so that it would not be operated to trip the latch 717, cooperating with the hammer 715, associated with f the type-plate 618 Provision is therefore made for retaining the lever-arm 13 in lower position during the backward movement of the operating-handle notwithstanding the release of the totalkey and the return of the lever 6 and typeplate' 618 to normal position. This provision consists of a stud 17 projecting from one of the side a-rms 711 of. the swinging frame which carries the tripping-pawl's 718, which stud cooperates witha notch or recess 18, formed in the under sideof the lever-arm 13.

The open lower end of this notch or recess 18 when the total-key is then released; Therefore the engagement of the stud with the notch will prevent the front end of the leverarm 13 being drawn up by its spring 13 until after the frame 711 has been swung rear ward again and the stud l7 disengaged,from the notch. This does not occur until the operating-handle has moved backward far enough to cause the stud 15 upon the arm 14 to have passed beneath and rocked the lever 12 and tripped the latch 17 of the hammer 715, so that notwithstanding the release of the total-key prior to the backward movement of the operating-handle the trippinglever 12 is held down in the path of the stud 15 long enough to permit the latter to release the latch of the hammer, after which the frame 711 will be swung rearward to normal position and the stud 17 be disengaged from the notch 18 n the lever-arm 13, and

the spring 13 will then lift the-front end of the latter to normal position. In. the man- .ner and by the means explained, therefore,

if the total-key be depressed and held down during the forward and backward movement of the operating-handle the total character will be rinted upon the paper at the beginning of the backward stroke. of the handle, as in Fig. 6, while if the total-key be released prior to the-backward stroke of the handle the subtotal character will be printed upon the paper at the beginning of the backward movement of the handle, as in Fig. 8.

I am aware that it has been heretofore proposed in adding-machines of this general character to employ two inking-ribbons of different color, one for the printing of individual items and the other for the printing of totals, whereby the totals might be distinguished from the individual items in the printed lists; but such provision for distinguishing the totals from the individual items did not extend to the carbon copies, where duplicate lists were made in that manner, and there would be nothing upon such carbon copies to distinguish the totals from the individual items, nor did it serve to distinguish' totals from Subtotals upon either the original list or the duplicates. "My invention provides a means for indicating the totals upon the-duplicate lists, as well as the original. andfor distinguishing the totals and subtotals on all of them, and in these respects is a marked improvement upon the means heretofore employed, as state the lower part of the rear end of the machine,

the ribbon thus moving in a vertical direction between the platen and type and being of suflicient width to cover the entire group of type carrying levers. The platen has likewise been mounted in a swinging frame, either such as shown in the above-mentioned Letters Patent or in the LettersPatent to William H. Pike, No. 595,864, dated December 21, 1897. Under each of these constructions the printing-line was entirely hidden from the sight of the operator standing in a normal position for operating the machine, so that such operator could not see the printed items until they had been advanced a considerable distance from the printingpoint, except by swinging backward the rame carrying the platen, somewhat after the-manner of the movement of some type-'- writer platens for a similar purpose. A further feature of my present invention consists in a rearrangement and reconstruction of the parts, whereby the operator standing in nor-' mal position at the machine may easily and clearly see each printed item at the end of the operation of'the machine by which it has been printed, and thus not be obliged to either wait until such item has" been advanced a considerable distance from the printing-line by succeeding operations'of the machine or to swing the platen-carrying frame backward in order to observe the item. This improvement obviates the necessity of mounting the platen in a swinging frame, although such arrangement may be retained,

if desired, and it presents the same advantages in an adding-machine which are attained-in sight-writing type-writing machines as compared with type-writing machines in which the printing-line is hidden from view and can only be observed by swingingu the platen or paper-carriage. To this end I ave removed the ribbon-ca ing spool from the upper rear end of the mac ine and entirely cut away the portion of the cas-.

ing which formerly inclosed such spool, thereby affording the operator a clear and unobstructed line of vision to the printingplaten of the machine, Figs. 1 and 2. I have also removed the ribbon-carrying spool from the lower part of the machine and provided a narrow horizontally-arranged ribbon, mounted upon twovertically-arranged spools and 21 at opposite sides of the typecarrying levers, as shown in Fig. 3. This ribbon is led rearward from the spool 20 over a vertical guide-roller 22, thence across the rear side of the type-plates carried by the leacross the rear faces of the type-plates and Y the surfaceof the paper on the platen immediatelyabove the ribbon, andas the platen is turned slightly to advance the paper at the end of each operation of the machine and after the printing has been eHected it follows that each individual item is exposed to the view of the operator at the end of the opera- ;tion of the machine at which it has been printed, notwithstanding the fact that the ribbon travels in a fixed horizontal path across the printing-line of the machine instead of being reciprocated to and from said, i

. printing-line, as in theordinary visible-writ:

mg typeewriters and notwithstanding the platen is or maybe mounted. in fixed position. In Figs. 1' and 3 the platen may be assumed to be mounted in a fixed drtion ofjthe framework, while in Fig. 2 it is shown mounted in the swinging frame of the Pike patent.

The platen-roller 619 restsupon a cooperating feed-roller 619*, Fig. 2, and the spindle of the lattenroller has fast upon it a ratchet 519, with which cooperates a pawl 521,- carried by an arm 526, hung upon the spindle of the feed-roller and having pivoted to it the upper end of a link-a, which is pivoted at its lower end to an arm 5, projecting forward from a rock-shaft c, This rock-shaft has projecting upward from it an arm d, whose up er end cooperates with an antifrictionrol er 538 upon the upper-end of an arm 513, fast upon a rock-shaft 100.- At each forward movement of the operating-handle and backward movement of the rock-shaft 1.00 the pawl 521 is retracted over the ratchet 519, I

' and at the return movement of the operatinghandle and rock-shaft a spring e, bearing onthe arm (Z, restores the parts to normal posi- 'tion and causes the pawl 521 to-rturn theratchet. Thus at the end of each operation of the machine the paper is advanced slightly from the printing-point and the rinted item brought above the up er edge 0 the inking ribbon into the view 0 the operator.

The ribbon-spools are'operated by a lever 24, fulcrumed on a shaft 25and carrying at its upper end a pawl (not shown) cooperating with a ratchet on the left-hand ribbons'pool 21 and by gearing (not shown) connormally close the opening 33.

necting the shaft 25 with the s indle of the right-hand ribbon-spool 20. t its lower end the lever 24 is provided with a notch, in which fits a stud projecting from the rock shaft 100, which serves to rock the lever 24 upon its fulcrum-shaft 25 and cause its pawl to actuate the ribbon-spool at its upper end. The shaft 25 has fast upon it a ratchet 27, with which cooperate pawls carried by plates or arms 28 29, hung upon said shaft, said arms being connected by links or pitmen 30 31 with an arm 32, fast upon and projecting forward from the rock-shaft 100, the result'of which arrangement is that the ratchet 27 and shaft 25 will be turned by the movement of the rockshaft 100 i in each direction and moved one ste at the forward stroke of the operating-hail lo and another step at its backward stroke;

.In the Burroughs machine as heretofore constructed and shown in the Burroughs Patent No. 504,963 it was necessary to leave a considerable open space in the upper rear part of the machine beneath the upper ribopening the type-carrying levers may pass out of the casing at their extreme upward movements, ,and I have provided an automatic closure for this opening, servingtonormally close it and prevent the entrance of dust and dirt into the casing. This automatic closing-device consists in the present instance of a slide 34, mounted in guides 34 upon the under forward side of the inclined portion of the casing and adapted'to slide by gravity into its lower rearward osition and tis provided upon its underside near its lower end with a lug 35, adapted to be engaged by the upper rear end ofalong arm or lever 36, Figs. 4 an 5,

pivoted or fulcrumed tothe framework at its ower end. This lever 36 has pivoted to it. near its lower end the lower rear end of alink 37, which link at its upper forward end has a slot-and-pin connection with an arm 38, fast upon the rock-shaft 600. When this leverarm 36-is swun rearward and downward, it "ermits the side or shutter 34 to move wit it to the position shown in Fig, 5 and close the opening 33 in the casing, andwhen. the lever is swung upward andjforward it carries the slide 34 with it and exposes said opening, so that the ty e-carrying evers are free to move u' ward t rough it. In, Fig. 4

the lever and s ide are shown in their upper 3 which t scribed, and is provided at its rear end with a hook engaging a stud 40 upon the side of the lever-arm 36. A spring 41, fastened at its rearend to the latch 39 and bearing at its forward end upon'a stud 42 upon the arm 2,

pr sses the rear end of the latch downward and yieldingly holds it in normal position, its downward movement when not engaged with the stud 40 being limited b a stud 43 upon thelatch near its rear end: which stud 43 bears against the rear edge of the arm 2, to

e latch is pivoted. By means of the spring 41 and stud 43 the latch 39 is therefore normally held in the position shown in Fig. 4, so that if at such time the lever-arm 36 be swung upward and forward from its lower and rear position its stud 40 will ride under the nose of the latch 39 and be caught and held by its hook in the position shown in Fi 4. If with the arts in this position the tota of the mac he be depressed, the shaft 1 be rocked in the directionof the arrow and the arm 2 swung upward and rearward, as heretofore explained, which movement of the arm will carry the latch 39 out of engagement with the stud 40 of the lever-arm 36 and permit the latter to swing rearward and downward to normal position, and the slide.

34 will follow the lever andclose the opening .in the casing. The connection of the leverarm 36 with the arm 38 on therock-shaft- 600 by means of the link 37 will cause'the arm to be swung upward to the position shown in Fig. 4 whenever the operatinghandle is pulled '35 forward; but if the total-key of the machine be depressed at'such time the latch 39 .will

. not en a e the stud'40 upon the lever-arm 36, an t e latter and the slide 34 will therefore drop back to normal position upon the return movement of the operating-handle and close the opening in the casing. It will therefore be understood from the fore oing description that if the operating-hen e of the machine be pulled forward at anytime chine the total-key will in connection with the printing of the total at 7 when the closure-slide is in its lower position such slide will be lifted away fromthe open ing in the casing and be maintained in its moved position unless the total-key of the machine is depressed at suchztime, and that thereafter whenever the total-ke is deressed the slidewill be released an dropped Back to position to close theopening in the practical use of these macasing'. In the p alwaysbemclosedpositlon chines the slide wi at the-beginning of any series of operations 1 of the machine, since at the completion "of any preceding series of o 'erations of the maave been operated the foot of the list, thereby releasing the slide and permitting it to move downward to closed position. Upon operating the ma chine to print the first item 1n the new list the lever-arm 36 will be swung upward and forward andengagedby the latch 39,-and the slide thereby moved and held in its u er position, and it will remain in this position, leavin the opening in the casing exposed, until t e list of items is completed and the totalprinted, whereupon at the printing of such total itwill be released and'dropped back to its lower position, closing the open- 7 ing in the casing and excluding dust and dirt;

thereform during remain out of use. I Iclaim-''- 1. In an addin -machine the combination the time the'machine may of printing and a ding mechanism, for printing individual items and accumulating and printing the total thereof, and means for a'utomatically printing with the total a suitable character to distinguish it from the individual items; substantial] as described.

2. Inan adding-mac he, the combination,

with printing and adding mechanism, and

means for clearing the machine, of means for printinga distinguishing character as. an

incident to the operation of clearing-themachine; substantially as described.

3. In an adding-machine, the combination of printing and adding mechanism for printing individual items and. accumulating the total thereof. and rinting said total either with or without c caring the machine, and means for printing with the total a given distinguishing character when the" machine is not cleared and another distinguishing character when the machine is cleared, to ind'icate s'ubtotals and totals, respectively; sub stantially as described.

4. In an addin -machine, the combination of printing and a ding mechanism, for printing individualitems and accumulating and printing the total thereof, a special key re-- quiring operation at the printin of a total, and printing devices controlled y said key and operating to print a distinguishing character whenever the operation of the machine is accompanied by operation of said key; substantially as described.

5. In an adding-machine, the combination,

with printing andadding mechanism, and" Eing individual items and accumulating and prlnting the total thereof, a special printing device comprising a movable type-carrier, a

spring-operated striker or hammer for forcing the type of said carrier against the platen, a latch normally restraining said striker from movement, a trip for said latch, and a f totalke controllingthe-operation of saidtrip;

su stantially as described.

7. In an addingrnacl1ine, the combination of printing and adding mechanism, for printing individual items and accumulating and printing the total thereof either with or without clearing the machine, two special type characters representing totals and subtotals respectively, and means for causing one of said characters to print when the machine is opprated to print a total and clear the mane," and the. other of said characters to print when the machine is operated to print a total without clearing the machine; substantially as described.

scribed.

8. In an adding-machine, the combination of printing and adding mechanism, for printing individual items and accumulating and printing the total thereof either with or without clearing the machine, a special typecarrier bearing two type characters representing totals and subtotals respectively and with the totalke;to print the total without clearing the mac me the other of said t e characters will print; substantially as escribed.

9. In an adding-machine,the combination out clearing the machine, said printing dev ces comprlsmg a platen and a series of typecarrlers movable to bring their different types to the printing-line, and the adding mechanism comprising a train of accumulatthe type-- ing-pinions, means intermediate carriers and pinions whereby upon turning the pinions backward to initial position the type-carriers will be moved corresponding distances and bring to the representing the total previously accumulated upon the adding mechanism, a total key controlling such backward movement of the pinions and setting of the type-carriers, and a special printing device controlled by said total-key and operating to print a distinguishing character in connection with the printing of a total; substantiallyas de- 10. In an adding-machine, the combination of printing and a ding mechanism, for printing individual items and accumulating and printing the totalthereof either with or-without clearing the machine, and an adjustable type-carrier bearing two type characters representing totals and subtotals respectively, one of which characters stands at the printing-line when the carrier is in normal position, a total-key connected with said of printing and adding mechanism for printmg individual items and accumulating and printing the total thereof either with or with-' printing-line types type-carrier and operable to bring the other type character to the printing-line, and

pr nting devices cooperating with said typecarrier. and controlled by said total-key, said devices being normally inoperative but brought into operation by the total-key substantially as described.

1 1. In an adding-machine,the combination of printing and adding mechanism, for printing individual items and accumulating and printing the total thereof either with or without clearing the machine, a special typecarrier bearing two type characters representing totals and subtotals, respectively, and movable to bringeither of said characters to the printing-line, a spring-operated hammer or striker for forcing said type-carrier toward the impression platen, a latch for holding said striker out of o eration, and a tripping device for said latc controlled by the total-keyf substantially as described.

12. In an adding-machine, the combination of printing and adding mechanism for printing individual items and accumulating and printing the total thereof either with or without clearing the machine, a special type carrier bearing two type characters representing totals and Subtotals, respectively, one of which characters normally stands at the printing-line, a total-key and connections-cooperating with the type-carrier for moving it to bring its other type character to the printing-line, a spring-operated striker or hammer for forcing the type-carrier toward the impression-platen, a latch normally holding said striker from movement, and a trippingdevice for said latch normally inoperative but moved to operative position by operation ofthe total-key; substantially as de scribed. 4

13. In an adding-machine, the combinationof printing and adding mechanism for printing individual items and accumulating and printing the total thereof either with or Without .clearing the machine, a special type-carrier bearing twotype characters representing totals and Subtotals, respectively, one of which characters normally stands-at the printing-line, a' total-key and connections cooperating with the type-carrier for moving it to bring its other type character to theprinting-line, a spring-operated striker or hammerfor forcing the type-carrier toward the impression-platen, a latch normally holding said striker from movement, a tripping. device for said latch normally inoperative .but moved to operative position by operation of the total-key, and means forpreventing its return-to inoperative position after the release of the totalkey; substantially as described.

14. In an adding-machine, the combina- I tion of the levers B carrying the racks 610 at their forward ends and the type-plates 618 at their rear ends, the accumulating-pinions 916 coperating with the racks and the platen 619 cooperating with the type-plates, the spring-actuated hammers 715 cooperating with the type-plates, the latches 717 normally restraining sr-id hammers from. movement, the tripping-pawls 718 for tripping said latches, the special type-plate 618 hearing a type character representing totals, a

spring-actuated hsmmer 715 coperating with said type-plate, a latch normally holding said hammer from movement, a normally inoperative trip for said latch, and a total-key and connections for, rendering said trip operative when the total-key is operated; substantially as described.

15. In an adding-machine, the combination of the levers B carrying the racks 610 at their forward ends and the typeplates 618 at their rear ends, the accumulating-pinions 916' cooperating'with the racksand the platen 619 cooperating with the type-plates, the spring-actuated hammers 715 cooperating with the type-plates, the latches "717 nor-' mally restraining said hammers from move ment, the tripping-pawls 718 for tripping said latches, the special type-plate 618 carried by the lever 6 and bearing two type characters representing totals andsubtotals, respectively, the total-key and connections between the sameand the lever 6 for causing the depression of the total-key" to move the lever 6 and bring the total-type character to the printing-line, the'spring-ac tuated hammer 715 co6perating with the type-plate 618'. the latch 717 normallyrestraining said hammer from movement, and

v a tripping device for said latch normally inoperative but set for operation by the depression of the total-key; substantially as described. a v

- 1 6. In an adding-machine, the combination of the levers B carrying the racks 610 at their forward ends and'the type-plates 618' at their rear ends, theaccumulating-pinions 916 coeperatingwith the racks and the platen 619co6perat1ng with the type-plates, the spring-actuated hammers 715 cooperating with the type-plates, the latches 717 nor mally relsltraining said hcmmers from move men t e tripping-paw s 718 for tri ing said latches, the special type-plate 6l8 earried by the lever'6 and earing two type characters representing totals and subtotals, respectively, the total -key and connections between the same and thelever 6 for causing the depression of the total-key to move the lever 6 and bring the total-type character to the printing-line, the spring-actuated hammer 71.5 co6perating with the type-plate 618, the latch 717 normally restraining said hammer from movement, the bell-crank 10 co6perating with the stud 9 i upon said latch, the pivoted arm 13 carrying the tripping-pawl 12 006 erating withthe lower end of the bell-cran 10, the swinging arm 14 carrying the stud 15 normally travel-'- ing beneath the pawl 12, and a connection between the total-key and the arm 13 for causing the depression of said key tov lower said arm and bring the trip ing-pawl '12 into the path of the stud 15; suli scribed.

17. In an addingmaclrine, the combination of the levers B carrying the racks 610 at their forward ends and the t e-plates 618 at their rear ends, the accumu atin -pinions 916 coep'erating with the racks andt eplaten' spring-actuated hammers 715 cooperating with the type-plates, the latches 717 normally restraining said hammers from movement, the tripping-pawls 718 for tripping said latches, the special type plate"618 carried by the lever 6 and bearing two type characters representing totals and subtotals respectively, the total-key and connections between the same and the lever 6 for stantially as de-' .619 cooperating with the type-plates, thecausing the depression of the total-key to i move the lever 6 and bring the total-type character to the printing-line, the spring-actuated hammer 715- coti'perating with the type-plate 618, the latch 717 ;normally re- 18. In an adding-machine, the combination of a platen-roller located at the rearside of the machine, a plurality of type-carriers located side byrside in front of said platen and each carrying a plurality of types movable upon the carrier, means for adjusting said type-carriers vertically and forclng their types rearward into contact with the platen at a printing-line along its forward side and within, the normal ran e of view of the operator, and an inking-rib on movable in a horizontal path alon said printin -line, between the t pes and t e platen; su stantially as descri ed.

19. In an adding-machine, the combina- I tion of a platen-roller located at the rear side of the machine, a plurality of type-carriers located side by side in front of said platen and each carrying a plurality of types movable upon the carrier, means for ad ust ng said type-carriers vertically and forcing their types rearwardthereon nto contact with the platen at a printing-line along its forward side and wit in the normal range of view of the operator, an inking-r bbon movable in a fixed horizontal path along said printing-line, between'the types and the platen, and means for automatically turning the platen at each operation of the machine, after the printing has been done, to carry the printed .amount above the inking-ribbon and bring it into the view of the operator at the end of the operation; substantially as described. 1

20. In an adding-machine, the combina tion of a platen-roller j ournaled in fixed bean ings at the rear side of the machine, a plurality of type-carriers located side by sidein front of said platen and each carrying a plurality of printing-types movable upon the carrier, means forfl'adjusting said-type-carriers vertically and forcing their types rearward thereon into contact with the platenroller at a printing-line along the forward side of the same and within the normal range of view. of the operator, an inkingribbon led between said types and platen, and means for turning the platen at each op eration of the machine, after the printing has been done, to bring the printed amount.

into the view of the operator of the machine at the end of the operation; substantially. as

described.

21. In an adding-machine, the combina- I tion of a platen-roller j ournaled in fixed bearings at the rear side of the machine, a plura ity of type-carriers located side: by side in front of said platen and each carrying a plu rality of printing-types movable upon thecarrier, means for adjusting said type-carriers vertically and forcing their types rear- Ward thereon into contact with the platenroller at a printing-line along the forward side of the same and within the normal range of view of the operator, and an inking-ribbon movable in a horizontal path alongsaid printing-line, between said types and platen; substantially as described.

' 22. In an adding-machine, the combination of a platen-roller ournaled in fixed bearings at the rear side of the machine, a plura ity of type-carriers located side by side in front of said platen and each carrying a plurality ofprinting-types movable upon the carrier, means for adjusting said type-carriers vertically and forcing their typesrearward thereon into contact with the platenroller at fa printing-line alon the forward side of the same, an inking-'ri bon movable in a fiXed-horizont'al-path along said'printing-line, between the ty es and platen, and means for turning the p aten at each operation of the machine,- aft'er the printing'has been done, itof carry the printed amount above the inking-ribbon and bring it into the view 'of'theoperator-ofthe machine at the endofthe-operation;substantially as described- J Y v 23. In an? va'ddinigmach ine, the combin'a I tion of printin andiadding; mechanism for; printing indivi ual items and accumulating an opening through which the-type-carriers of the printing mechanism are adapted to pass, a shutter, for normally closing said openln from t e opening at the operation of the machine to print an individual item, and means forreturning the shutter to normal position when the machine is operated-to print a total substantially as described. ,I

24. In an adding-machine, the combination of printin and adding mechanism for printing indivi .ual items and accumulating and printing the total thereof, a casing inclosing said. mechanism and provided with an opening through which thetype-carriers of the printing mechanism are adapted to pass, a shutter for normally closing said openin means for moving the shutter away from t e opening at the operation-of the machine to print an individual item, means for holding the shutterin such moved position during the printing of succeeding individual items, and means for releasing the shutterand returning it to normal position described.

25. In an adding-machine, the 'combina tion of printing andadding mechanism for printing indivi ual'items and accumulating and-printing the total thereof, a casing in-- closing said mechanism and provided with an opening through which the type-carriers of the printing mechanism are adapted to pass, a shutter for normally closing said opening, means for moving the shutter away means for moving the shutter away at the printing of a total ;'substantially as a from the opening at the operation of the machine to print an individual item, a latch for holding the shutter in such moved positionv during succeeding operations of the machine to print individualitems, and a trip for said latch operated at the printing of a total; substantially as described.

26, In an adding-machine, the combination of printin'gandfadding mechanism for printing individual items and accumulating and printing the total thereof, said printing mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to be swung upward to bring the different ty eplates to the printing-line, the casing inc oslng the (printing and adding mechanism and provide I the upward movements of the type-carriers, the shutter 34, mounted to. reciprocate to and from the opening 33, to alternately close and dpen the same, means for moving said shutter away from the opening to permit the passage of the type-carriers at succeeding operations of the machine, and means for returning the. shutter to normal osition, to close said opening at the conclusion of o er-v ations of the machine, substantially as described;

with the opening 33 to accommodate tion of printing and adding mechanism for 1 printing individual items and accumulating and printing the total thereof, said printing mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to be swung upward to bring the diiierent typeplates to the printing-line, the casing inclosing the printing and adding mechanism and provided with the opening 33 to accommodate 5 the upward movements of the type-carriers,

the shutter 34, mounted to reciprocate to and from the opening 33, to alternately close and 5 open the same, means for moving said shutter away from the opening to permit the passage of the type-carriers at succeeding operations of the machine, a latch for holding said shutter in moved osition, and a trip for said latch; substantially as described. I

28. In an adding-machine, the combination of printing and adding mechanism for printing individual items 'and accumulating.

and printing the total thereof, said printing mechanism employing the type-carriers 61 1 carrying the type-plates 618 and adapted to. be swung upward to bring the different type plates to the printing-line, the casing inclosmg -the printing and adding mechanism and provide the upward movements of the type-carriers, the shutter 34, mounted to reciprocate to and from the opening 33, to alternately .close and ing the open the same, means for moving said shutter away from the opening to permit the passage of the type-carriers at succeeding operations of the machine, a latch for holding said shutter in moved osition, and a trip for said latch automatical y o erated at the printing of a total; substantial y as described.

29. In an adding-machine, the combiiian tion of printing and adding mechanism for printing individual items and accumulating and printing the total thereof, said. printing mechanism employing, the type carriers 611 carrying the type-plates 618and adapted to be swung upward to bring the diiierent typeplates to the printing-line, the casing inclosrinting and adding mechanism and provided with the opening 33 to accommodate the upward movements of the type-carriers, the shutter 34, mounted to reciprocate to and from the opening 33, to alteriiatel close and open the same, means for automatically moving said shutter away from said opeinngat the operation of the machine to print an individual item, and means for returning the shutter to normal position at the end of oper-- ations of the machine; substantially; as described. y

30; In an adding-machine, the combination of printing and adding mechanism for printing individual items and accumulating and printing the total thereof, said printing mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to with the opening 33 to accommodate lates to the printing-line, the casing inc osmg the rinting and adding mechamsm and provide with the opening 33 to accommodate the upward movements of the type-carriers, the shutter 34, mounted to reciprocate to'and from the opening 33, to alternately close and open the same, means for automatically moving said shutter away from-said opening at the operation of the machine to print an individual item and means for automatically re turning said shutter to normal position at the operation of the machine to print a total; substantially as described. i

31. In 'an adding-machine, the combina.- tion of printin and adding mechanism for printing indivi ual items and accumulating and printing the total thereof, said printing be swung upward to bring the diiierent type lates to the printing-line, the casing inclosing the rinting and adding mechanism and prbvide with the opening 33 to accommodate the upward movemeiits of the type-carriers, the shutter 34, mounted to reciprocate to moving said shutter away from said opening at the operation of the machine to printan individual item, a latch for holding said shutter in moved osition, and a trip for said latch; substantially as described.

32. In an adding-machine, the combination of printing and adding mechanism for printing individual items and accumulating and printing the total thereof, said printing lates to the printing-line, the casing inclosprovided with the opening 33 to accommodate the upward movements of the type-carriers,

from the opening 33, to alternately close and open the same, means for automatically moving said shutter away from said opening at the operation of the machine to print an individual item, a latch for holding said shutter in moved position, and a trip for said latch automatically 0 erated at the printing of a total; substantial y as'described.

33.. In an adding-machine, the combination of printin an adding mechanism for printing indivi ual i ems and accumulating and printing the total thereof, said printing mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to be swung upward to bring the different typelates to the printing-line, the casing inclosing the rinting and adding mechanism and rovided with the opening 33 to accommoate the u ward movements of the type-carriers, the s ide 34, mounted in guideways 3&1

be swung upward to bring the different ty e-' mechanism employing the type-carriers 611v carrying the type-plates 618'and adapted tomg the printing and adding mechanism and.

the shutter 34, mounted to reciprocate to and and from the opening 33-, to alternately close and open the same, means for automatically I mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to be swung upward to bring the different type-- upon the casing and adapted to slide to and from the opening 33, means for moving said' slide away from said opening to permit thepassage of the type-carriers through said opening at succeedlng operations of the machine, and means for returning said slide to normal position and closing the opening at the operation of the machine to print a total; substantially as described.

34. In an adding-machine, the combination of printin and adding mechanism for printing indivi ual items and accumulating and printing the totalthereof, said printing mechanism employing the type-carriers 61 1 carrying the type-plates 613 and adapted to be swung upward to bring the different ty 'e-- plates to the printing-line, the casing inc osing the printing and adding mechanism and provided with the opening 33 to accommodate the upward movements of the type-carriers,-

the slide 34, mounted in guideways 34 upon the casing andadapted to slide to and fromtheopening 33, means for movin saidlsli'de away from said opening to permlt the pas-- sage of thetype-carriers through said opening at succeeding'operations of the machine,

a latch for holding the slide in such moved ing the printing and adding mechanism and provided with the opening 33 to accommodate the u ward movements of the type-carriers, the s ide 34, mounted in guideways 34 upon the casing and adaptedto slide to and from the opening 33, means for moving said slide away from said opening to permit the passage of the type-carriers through said opening at succeeding operations of the machine, a latch for holding the slide in such moved position, and a trip for the latch automatically operated at the printing of a total substantially as described.

tion cl" printing and adding mechanism for printing indivldual items: and accumulating and printing the total'thereof, said printing mechanism employing the type-carriers 611 1 carrying the type-plates 618 and adapted to be swung upward to bring the differentt e-' plates to the printing-line','the casing inc os-' ing the rinting and adding mechanism and provided with the opening 33 to accommodate the upward movements of the t ecar- 'riers, the slide 34, mounted in gui eways 34 u on the. casing and adapted to slide to an from the opening 33, means for automatically moving said slide. away from the and adding mechanism for' opening at the operation of the machine to print an individual item, and means for returning the slide to normal position at the conclusion of operations of the machine; substantially as described.

37. In an adding-machine, the combina tion of printin and adding mechanism for printing indivi ual items and accumulating and printing the total thereof, said printing mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to be swung upward to bring the different typeplates to the printing-line, the casing inclosing the rinting and adding mechanism and provide with the opening 33 to accommo date the u ward movements of the type-carriers, the s ide 34, mounted in guideways 34 upon the casing and adapted to slide to and from the opening 33, means for automatic-' ally moving such slide away from the open- ,ing at the operation of-the machine to print an individual item, a latch for holding said slide in moved position, and a trip'for said latch; substantiallyas described.

38. In an adding-machine, the combination of printin and adding-mechanism for printing indivi ual items and accumulating and printing the total thereof, said printing mechanism employing the type-carriers 611 carrying the type-plates 618 and adapted to be swung upward to bring the'diflerent typeplates to theprinting-line, the casing inclosmg theprinting and adding mechanism and rovided with the opening 33 to accommo ate the upward movements of the type-carriers, the slide 34, mounted in guideways 34 'upon the casing and adapted'to slide to and from the opening 33, means for automatically moving such slide away from the opening at the operation of the machine to print an in dividual item, a latch for holding said slide in moved position, anda trip for said latch automatically operated at ,the rinting of a total; substantially as describe 39. In an adding-machine, the combina -tion of printin and adding mechanism for printing indivi ual items and accumulating andprmting'thetotal thereof, a caslng 1nclosing said mechanism and provided withan opening through which the type-carriers of 36. In an adding-machine, the c'ombina the printing mechanism are adapted to pass, a shutter for normally closing said opening, means for automatically moving the shutter away from the opening at the operation of the machine to print an individual item, a latch normally operating to hold the shutter in such moved position, a total-key requiring operation for the printin of a total, and a trip for the latch o crate by said key; substantially as descri ed.

l 40." I'nj' an adding-machine, the combina tion of printing and'adding mechanism for printing individual items and accumulating and printing thetotal thereof, a casinginclosing said mechanism and provided With an IIC

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