US1328822A - Adding and recording machine - Google Patents

Description

1. L. DALTON ANDJ. MAGNUS.

ADDING AND RECORDING MACHINE.

APPLICATION FILED MAY I5 1909.

Patented Jan. 27, 1920.

2 SHEETS-SHEET l.

Zazm @m62 J. L. DALTON AND1. MAGNUS.

AnmNG AND RECORDING MACHINE.

APPLICATION FILED MAYly 1909.

Patented Jan. 27, 1920.

UNITED STATES PATENT OFFICE.

JAMES L. DALTON AND JOHN MAGNUS, 0F POPLAR BLUFF. MISSOURI, ASSIGNORS TO DALTON ADDING MACHINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

ADDING AND RECORDING MACHINE.

Application filed May 15, 1909.

To all whom it may concern Be it known that we, JAMES L. Diirfrov` and JOI-IN MAGNUS, citizens of the United States, residing at Poplar Bluff, Missoui'i, have invented a new and useful Adding and Recording Machine, of which the following is a specification.

This invention relates to adding and recording machines, and more particularly to the recording mechanism thereof.

One obj ect of this invention is to provide devices operable in connection with the recording mechanism of an adding machine to adjust said mechanism whereby two or more columns of lists or other data may be produced simultaneously. This operation is frequently desired to enable the operator to record in one column dates or other data, and in a parallel column the items listed on such dates. In certain types of adding ma chines the printing mechanism comprises a series of type carriers operable side b v side to record on paper in a. paper carriage, and

hammers or devices arranged to'drive the type on the type carriers effectively to print. One type of this machine is illustrated in the application of Hilbert Hopkins, Serial No. 140.390, filed January 24, 1903, patented September 24, 1912, No. 1,039,130, and the present invention is peculiarly adapted for use in ooniiection with such a machine.

Another object of the invention is to provide means whereby any desired portion of the recording mechanism may be rendered inoperative when any other portion is operated to record. This is to enable the operator to print at the foot of any column total of the items listed, and to throw out the total and leave blank the total space at the foot of the columns containing the dates or other data, when such is desired. Other uses of this nonlisting mechanism are obvious and do not require specific mention.

In the accompanying drawings wherein we have illustrated our invention embodied in a machine of the general type disclosed in the aforesaid Hopkins patent, Figure 1 is a longitudinal vertical sectional view of such a machine showing the arrangement of the present invention therein. Fig. 2 shows a list as made by a series of the type carriers all of which operate to record. Fig. 3 illustrates a list in which two of the figure columns are blank showing that the split Specicaton of Letters Iatent.

Patented Jan. 27, 1920.

Serial No. 496,285.

devices had been operated to cause the machine to record the three vertical columns of figures shown. Fig. 4 is a plan view of the hammer section showing the devices whereby the hammers may be held inoperative to cisplit the machine. Fig. is a perspective view of the hammer release device. Figs. 6 and T show the devices whereby the hammer release devices may be caused to operate or remain inoperative as desired. Fig. S is a sectional view of three of the hammer release bars or links taken on the line S-S of Fig. G. Fig. 9 is a corresponding sectional view taken on the line 0-9 of Fig. 7. Fig'. 10 is a front view of the hammer section and of the hammer retaining device whereby any predetermined number of the hammers may be prevented from striking the type. Fig'. 11 is a perspective view of the hammer-detaining device removed from its support. Fig. 12 is a sectional View taken on the line 12-12 of Fig. l0. Fig. 13 is a sectional view of the adjusting member whereby movement of the liammer-detaining device may be regulated or limited. Fig'. 14 shows a detail of the key mechanism.

In the machine above referred to and as the same is now manufactured, there .is a keyboard comprising a set of keys arranged upon the vertical extensions of the key levers 1, which are operable in connection with the transversely movable carriage Q to set up or register numbers in said carriage. A series of type carriers 3 swing' from a shaft e and have movementl coordinate with the gear parts 5 connected thereto respectively. A shaft G has a link 7 connecting the same with a plate S mounted on the shaft 1. Arms 9 extend downwardly from the shaft 4f and have a rod 10 extending transversely between the lower ends thereof in front of the vertical portions of the type carriers and gear parts, whereby when said rod is in its idle position the type carriers will be held inoperative. I/Vhen the shaft 6 is rocked and the link 7 is drawn forward, the rod 10 permits the type carriers to be moved by their springs 11 until the heel pieces 12 in connection with the gear parts 5 engage against the pins 13 which had been set up or adjusted in the carriage to represent or register the number therein, all of which lis well understood in the art to which this invention relates. Forward movement of the type-carriers in this way alines at the printing point or line the type 1d on the different type carriers which are necessary to print the number previously registered in the carriage. The paper is supported around a platen 15 in front of which the ribbon .16 extends and against which the type are driven to record in the usual manner. A shaft 17 is supported transversely in front of the type carriers and a series of hammers or drivers 18 are pivoted on s-aid shaft, being actuated as required to strike or drive 'the type against the ribbon by springs 19. Fawls 20 pivoted on the rod 21 engage with and hold the' hammers in idle position. A link or bar 22 is connected to each pawl and at their rear ends rest upon the levers' 23 which are pivoted on the rod 24. The shaft 17 is a rock shaft and at each forward movement of the type carriers is automatically rocked, as is well known. Two arms 25 are attached to the ends of the shaft 17 and said arms support a bar 26. Each type carrier when it moves forwardly beyond 0' position depresses the rear end of the corresponding lever 23 by moving the shoulder 27 'onvsaid type carrier against the upturned end of said lever, which operation raises the bar or link 22 for the corresponding hammer. In idle position the bars or links 22 are held below the path of movement of the bar 26 by springs 2S,` but when the lever 23 for any of said bars is operated as mentioned, the rear end of said bar will be raised into the. path of movement of the bar2G so that the latter will contact against said bar 22 and thereby move-the same and its pawl 20 forwardly, releasing the`l pawl from the hammer and permitting` the spring 19to .throw the `hammer against the type as indicated by' dottedv lines in Fi'g. l. The bars 22 have laterally extending 'tongues or projections 29 extending from higher to lower orders. That is to say, the bar in tensv position has a projection ext'ei'ding under the bar in units position, whilethebar in hundreds position has a projection extending; under thebar in tens position, and so on, so that when any bar having'suchextension is raised, they bars toward the right therefrom will also be raised by the coperation of their extensions 29. ln the embodiment shown,v the extension"29 on the' bar in the sixth or hundred of thousands* position does not extend under the bar in the next lower order. Since-it is necessary that the type carriermove forwardly beyond its 0 position before it will operateit's lever 23 effectively -lto release the corresponding hammer, it will be obvious that a character may be printed in the sixth column and other digits printed inthe units, tens, hundreds and thousands columns without recording any character in the space between thousands and hundreds of thousands as shown in Fig. 3. However, the machine is provided with means whereby a cipher may be recorded in the fifth column whenever dcsired. A plate 30 is supported by the bar 22 inlthe iifth position by pin-and-slot devices as shown in Fig. 6, and in its under side has a notch wherein the projection 29 of the adjacent bar moves when said adjacent bar is lifted. The plate 30 may be moved in theopposite direction to position wherein the projection 29 will engage with said plate when said projection is` raised. and therebythe bar 22 to which said plate is att-ached ywill be lifted and the hammer released.VA This construction is also applied to the'b'ars' in the seventh and eighth positions,\the construction beingduplicated in these two positions. Each ofthe plates 3() has a. laterallyextending projection 31 embraced by two arms of a bifurcated lever 32, one of which is vprovided for each of said plates. The levers 32 are mounted on a shaft 33 and are provided with extensions 34' connected by links 35 with the rear ends of the levers 36. |The stems of keys 37 exten'df through slots in the keyboard plate and are pivoted to the leversv 3G, whereby the levers 82 may beoperated effectively to move the plates() to operative or inoperativepositionl asde'si'red. Eachv of the plates 30 hasv a spring 3S arranged to engage in notches' 39 on -the adjacent bar 22 whereby said plate will be yieldingly detained in its twov adj ustn'ients. The keys 37 and the parts connected therewith 'are returned to their idle position after eachL operation-by means of springs' 40 connected to thel shaft 4:1 upon which the levers-36 are-mounted and having one end connected with said levers 36 as shown in Figgl. j

Freni-tlie'foregoiiig it will be seen that the machine may be adjustedto render opervatilve all Efof fthejtype carriere It--may also be adjusted 5to* render? inoperative the typecarriers' -ing predetermined positions to enable the operatorto Yrecord two -or more parallel columns. In-'such :use it is usual to record `lthe' itemsfth'atl are to ybe added in the column atthe right, and the dates and other-data which"-arefnot to be added inthe parallel columnat the left, the latterv columns being separated from the former' by .the blank space left the 'inoperative type carriers, a specimen of'such vwork being illustrated Fig. 3. In `perfrining this eharacterfof worlrfit is desirable that 'the tota'Jls betaken onlyfo'r the column at Athe right. Fer 'this purpose, and to avoid confusion which would ari'serby producing totals at the "foot of the other columns,v we have proi'fided means' whereby the-hammers coperating" with thev type carriers in the left hand columns may be detained and held inoperativef The hammers operate within an extension 42 of the case. A bar 4:3 is

connected to axis members 44 (Fig. 10) which have bearings in the case 42, the said bar 43 extending downwardly from its axis supports. A spring 45 holds the bar 43 in its forward position out of the path of'movement of the hammers so that the latter may all pass thereunder without obstruction. A trunnion 46 attached to the side of the extension of the case 42 supports an adjustable stop member 47 held in its different positions by a pin 48 on the case vextending into holes in said member. A spring 49 interposed between the head of the trunnion 46 and the inner end ofthe member 47 holds the latter vin engagement with the pin in whatever position said member may be adjusted. vAn extension 50 on the bar 43 extends adjacent tothe member 47 and another extension 51 affords mea-ns for manual operation of said bar. The member 47 is provided with a cam portion and when adjusted in one position will permit the bar 43 to move only a slight distance; in its second position, will permit the bar 43 to move a farther distance, and in its third position will ermit maximum movement to .said bar. orresponding to these surfaces of the cam the bar 43 has off-set' portions 52,- 53 and 54; the portion 52 being deliected rearwardly to the maximum extent, the portion 53 being deiiected to a less degree, and the portion 54 not being deflected at all. When the member 47 is adjusted to permit the bar 43 to move to the minimum extent the portion 52 of said bar will be moved into the path of movement of a number of the hammers at the left-in the present instance three-so that the machine may record to its full capacity less three when this adjustment is used. By adjusting the member 47 to the next position as show-n in Fig. l2, both the portions 52 and 53 will .be moved into the path of movement of the hammers and in the present instance will be engaged by and stop four of the hammers at the left permitting five-at the right to operate, which is the proper operation for the character of work illustrated in Fig. 3. In this way the full total of the items listed in the column at the right will be printed while the total of the various figures printed in the other columns will be thrown out, thereby avoiding the confusion that would otherwise occur from such a record.

We are aware that there may be modications and alterations in the construction and arrangement of the parts embodying this invention without departure from the spirit and scope of the invention, and we do not restrict ourselves to identical features oit' construction or arrangement, but what we claim and desire to secure by 'Letters Patent isl. In an adding and recording machine,

the combination of series of printing type, a normally retracted hammer for coperating with the type of each series to print, means for releasing said hammers for printing operations, aI selectively settable abutment for engaging and preventing varying numbers of said hammers from operating after they have been released, and a settable device for stopping movement of said abutment in any one of various selected positions.

In an adding and recording machine, the combination of series ot' printing type, hammers for cooperating with said type to print, latch devices for retaining said hammers retracted, means for releasing said hammers, springs for driving said hammersl when released, an abutment movable to any one of various selected positions to prevent varying numbers of said hammers from striking the type after they have been released, and a. device for stopping said abutment in position to prevent the desired number of hammers from striking the type.

3. In an adding and recording machine, the combination of series of printing type, hammers for driving said type selectively to print. a separate latch for holding each of said hammersnormally retracted, a bar supported transversely of said. hammers. means for moving said bar to position to stop selected ones of said hammers when said hammers are released, and a device settable to stop said bar in any one ot' various selected positions.

4. In an adding' and recording machine the combination of a series of type-carriers, a series of type mounted on each carrier, means for moving said type-carriers to position any selected type for printing, hammers operable tov drive said type to record, an independently releasable latch for hold- .ing each of said hammers in retracted position, means for releasing said latches from said hammers after the type have .been positioned by the type-carriers, and a selectively settable abutment for preventing selected ones of said hammers from striking the corresponding type which have been positioned by said type-carriers.

5. In an adding and recording machineI` the combination of type-carriers and adding mechanism operable in addingand in clearing operations, type mounted on said type-carriers, hammers for coperating with said type to print when said type-carriers are operated in adding and in clearing operations, latches for holding said hammers normally retracted, automatic means controlled in part by said type-carriers for releasing said latches from said hammers as an incident to operation of said type-carriers inadding and in clearing operations` and a selectively settable abutment for preventing operation ot varying numbers of said hammers when the corresponding typecarriers are operated in adding or in clearing operations.

(5. In an adding and recording machine, the combination of a series oftype-carriers, mechanism for operating saidtypecarriers in adding and clearing operations, type driving hammers, latches holding saidhammers normally retracted, means for eecting release oi' saidlatches from the corresponding hammers as an incident to operationY of. said type-carriers in addmg or in clearingl ope ations, springs Yfor actuating,said-hammers when they are released as aforesaid, and a selectively settable abutment for preventingoperation of varying numbers 'of said hammers when they are releasedwbyoperation of the corresponding type-carriers. in adding and in clearing operations:

T. ln an adding and'recording machine, the combinationoie a series of hammers arranged in numerical orders, latches for holding said hammers normally retracted, a releasing bar for each of said hammers, a coupler supported by one ofsaid bars and movable thereon into and out of position to coperate With the adjacent bar, a manipulative device movable in one direction to move said coupling into position to coperate with the adjacentbar and movable in the opposite direction to move said coupler out of position to cooperate With the adjacent bar, means for restoring said manipulative device to idle position after each operation, and an element carried by said coupler' and engaging said bar to hold said coupler in whatever position it may be placed relative to saidbar.

S. In an adding and recording machine, the combination oi' a series of type-carriers, hammers for coperating With the type on said type-carriers topi-int, individuallyr releasable latches holding said hammers normally retracted, mechanism controlled in partby said type-carriers for releasing said latches as an incident to operation oi' said typecarriers, and manually operable means for selectivelyengaging and preventing operation .of said hammers aiter they have been released as a result ofthe opera-tion of the corresponding type-carriers.

9.v In an adding and recording machine, the combination of a series of hammers, means holding said hammers normally in retractedvposition, meansfor releasing said hanmiers, a manually operable device for selectively engaging and preventing. opera` tion of said=hammers after theyhave been released, and a settable stop for stopping and-holding .saiddevice in position to prevent operation of the selected hammers.

10'. In an adding and recording machine,

the combination of a series of printing hammers, means normally holding said hammers retracted, means for releasing said hammers,

a settable abutmentrfor engaging and preventing operation of predetermined numbersoi said hammers after the;7 have been released,v means for actua-ting said abutment toposition to prevent ope 'ation offsa'id hammers,

andladditional means orstopping saiclabiitvarying numbers of said hammersfrom strik# ingv the type-Which are in printing position adjacent to the platen.

1Q. In an adding andrecording machine, the combination ofn a. series of printing hammers, means holdingsaid hammers normally retracted, devices for releasing said hammers, a Settable element :for preventing operation of said hammers ai'ter theyv have been released, a member for predetermining which of said hammers ivillbe prevented from operation said element, and a dci/'ice settable toV stop and hold said element in different. selected positions to preventA operi tion of varying numbers `of saidhammers.

I'13. In anaddingand recording machine, the combination of a series of type-driving hammers aranged in numericall orders. latches holding said hammers normally in retracted position, means for releasing said l hammers, permanently` stationary' bearings,

an eleinent mounted in said bearings and ei;- tending transversely vof saidV 'hanim'ers, a series of abutmentson saidfelement, means for. moving said element relative tol said bearings intoythe path of movement of said hammers, land'automatic means for moving saidjelement 0ut-ot`-jtliey path oit movement V'of said'haxn'mers.

14. 1n an adding and recording machine, the combination off adding vvheelsy arranged in numerical orders, typelcarrying and rack devices also arranged-'in numerical orders for operating 'sa-idv adding Wheels to add numbers, means for operating saidtype-cai'- rying and rack devices 'and' thereby said adding Wheels inprin'ting'and adding' operations, mechanism for eoperat'ing said typecarrying v,and Vrack devices and adding Wheels in printing and"clearing'operations,

hammers arrangedl in numerical orders for'.

coperating with said type-carrying devices, latches holding saidfhammers normally in retracted position, means controlledin part by said typerarrying devices for releasingsaid hammers as an incidentto operation of the corresponding type-carrying devices in adding and clearing operations, means for striking said hammers against the type on said type-carrying devices to print the numbers added and also the totals represented in said addingwheels, and means for obstructing o eration of predetermined numbers of said hammers afterv they have been released by operation of the corresponding type-carrying devices in clearing operations.

15. In an adding and recording machine, the combination of printing'hammers arranged in numerical orders, means whereby printing operation of a hammer in a higher order vwill result in printing operation of hammers in lower orders, means for preventing operation of adjacent hammers 1n lower orders when other hammers in higher orders operate in printing operations, and means for obstructing operation vof predetermined numbers of said hammers, and a device for operating' said means.'

16. In an adding'and recording machine, the combination of ,printing hammers arranged in numerical orders, latches holding said hammers normally inretracted position, means for releasing said hammers, means controlled by the release vof hammers in higher orders controlling the release of'hammers in lower orders, means for preventing the release of selected hammers in lower orders when the hammers in higher orders are released, and a rockable element provided with abutments for 'obstructing operation of selected groups of the hammers in higher orders after thay have been released.

17. In an adding and recording machine, the combination of printing hammers -arranged in numerical orders, latches holding said hammers normally in retracted position, means for releasing said hammers, coupling devices whereby the release of a hammer in a higher order controls the releasing of hammers in lower orders, means for dis-1 abling said couplings to enable hammers in higher orders to beoperated while adjacent hammers in lower yorders remain retracted, and means under control of the operator-for obstructing operation of selected groups 'of the hammers in higher orders after 'they have been released in selected operations.

18. In an adding and recordmg machine, the combination of adding wheels arranged in numerical orders, type-carrying devices also arranged in numerical orders for operating said adding Wheels in adding and clearing operations, means' for operating said type-carrying devices and adding wheels in operations, mechanism forv coperating said type-carrying devices and adding Awheels in clearing operations, hammers arranged in numerical orders, latches holding said hammers normally in retracted position, means for releasing said hammers incidentally to the operation of said type-carrying devices mentioned.

' said abutments may in adding and in clearing operations, means for striking said hammers against the type on said type-carrying devices effectively to print the numbers added in adding operations, and also to print the total represented in said adding wheels in clearing operations, and a selectively settable element for obstructing operation of predetermined numbers of said hammers after they' have 'been released by operation of the corresponding type-carrying devices and adding wheels 1n clearing operations.

19. In an adding and recording machine, the combination of a series of printing hammers arranged in numerical orders, latches holding said hammers normally in retracted position, devices for'releasing said latches, a coupler movable into and out of position to effect coperation between adjacent releasing devices whereby releasing devices in higher orders may be made to control the releasing devices in lower orders o r not as desired, and an element movable into position to obstruct operation of all of the hammers in the numerical orders at one side of said coupler.

20. In an adding and recordingmachine, the combination of printing hammers arranged in numerical orders, latches holding said hammers normally 'in retracted position, devices for releasing said hammers, couplers movable into and out of position to effect coperation between different pairs ot' said releasing devices, means operable to place said couplers in position whereby release of a hammer in one of the higher orders will effect release of all or' the ham-mers in lower orders, or in position to enable certain of the hammers in higher orders and certain of the hammers in lower orders to operate while the hammers in intermediate orders remain in retracted position, as desired, and an element movable to position to obstruct operation of all of the hammers which are released in the orders at one side of the hammers in the intermediate orders 21. In an adding machine, the combination of a series of printing hammers, latches for holding said hammers normally retracted, releasing devices for said hammers, a bar supported transversely of said ham- 1ners, abutments on Said bar,a device holding said bar and said abutments out of position to obstruct movement of said hammers, a manipulative device for actuating said bar to position the abutments in position to ob struct movement of said hammers, and a controlling device'settable to limit extent of movement of said barto determinewhich of be moved to positionto obstruct movement of hammers.

' 22. In an adding and recording machine, the combination of a series of type-driving hammers, latches holding said hammers nor- Afrom the position to '--mal'ly hammers, a coupler movable into andf'outof si'red, whereby said series mally retracted, means for releasing said hammers, a bar extending transversely of said ham-mers,y abutments on said bar, means holding said bar in position to hold said abutments out of position to obstruct move ment of hammers, a manipulative device for actuating said bar to 'move said abutments to position to obstruct selected ones of said hammers, a device setta-ble to determine Which of said abutments may be moved to obstruct movement of the corresponding hammers, and Jeans for indicat-ingiv'hich of said hammers will he obstructed by said abutments.

In an adding and `recording.machine, the combina-thm 'oi' typewlrivinghzunmers, latches-holding said lhammers normally` r tracted. means for :releasing said hammers, means for o erating said hammers when released, a roc (ing bar, abutments on said bar for obstructing corresponding hammers, manipu'lativemeans for actuating said b ar to place the abutments in position to obstruct hammers, and a device'formovin'g said bar which it is moved 'by said manipulative means.

24. In an adding and recording machine, thecombination of a series of type-driving hammers, latches holding said hammers nrmally retracted, releasing devices :for said hammers, means foi-'actuating said hammers when theyare released, afsupport, abutments on said support adapted to be moved to position to lobstruct operation of correspending hammers, a manipulative device for actuating said support for the purpose last mentioned, Iand a -settable devicefor determining extent of movement of said support.

v25. In an adding and recording machine, the combination of type-driving hammers normally held in Aretracted position, means Vfor actuating said hammers when 'they are released, a bar. extending transversely of said hammers, a series of abutments on said bar each corresponding to at least one of said hammers, elements holding said bar in position to retain said abutments out of po,- sition to obstruct movement of the corresponding hammers, a manipulative device for actuating said bar to move said abutments lto 'position to obstruct operation of the'corresponding-hammers, and a settable device for determining eXtento-rmovement of said bar and thereby determining which ofsaid'abutnients will obstruct the correspondinghammers.

-26L In an add-ing and recording machine, thexcombination fa series of type-driving hammers, latches holding l retracted,devices for releasing lsaid position to effect or 't0' interrupt cooperation between adjacent releasing devices as deof'hammers may between 'ad be operatedas a series'or vices of each ,group ing "said hammers 4 A -p'ositiomdevices for releasing said hammers,

be divided into independently operable groups separated by intermediate hammers remaining in retracted posi-tion, a support, abutments on said support, and means for actuating said support to position to oblstruct the hammersin one of said groups .and out of 'position to eiiect or to interrupt coperation between said releasing devices, whereby said series of hammers may be di- Videdinto indepcndenitlly operable groups separated.bai7 intermediate hammers remaining in Aretracted, position when said groups of hammers operate, automatic means for 'operating said releasing devices as an incident to operation of the corresponding' typecarriers, and an element movable to position to obstruct all of the hammers 1n one of said groups when they are released by operation of the corresponding type-carriers.

28. In an addingand recording machine, the combination o'adding mechanism, typecarriersvforA actuating said adding mechanismin adding and i-n clearing operations, type carriedby. said type-carriers, a series of hammers for'coperafting with'said type to print,latches holding v-said hammers normally inretracted position, releasing devices therefor, a coupler movable into and out'cf position to eiect orto interrupt cooperation jacent releasing devices, as'desired, .whereby-said series ofl hammers may i vas independently operable groups separated-by intermediate hammers'remaining .in retracted position when .saidgrolpsof hammers operate, auto- .matic'means :for operating the releasing dei f as an incident -to the operation of' the corresponding type-carriers, and an element inovabletoposition to .obstruct all ofythei hammers -in one of said groups when 'the entire series of typecarriers arev operated in cica-ring operations.

29.*I'11 anjadding and -rec'sordingg; machine, the combination 'fof -typedriving s ham-mers arranged'j'in'numerical orders, latches-holdnor-mally in retracted a coupler carried by one" releasing device land movableA into and yout .of 'position to copz rate with anladjaeent releasing device, -means foire-taining said coupler 'or oritzof @ce era-r ities, assessed seaman-a P pgs -e 30. In' an ad and recording machine,

means for obstructing operation of varying numbers of said hammers, comprising a movable member with varied abutments for obstructing hammers; manipulative means for actuating said member to position to obstruct hammers; a device limiting extent or' movement of said member and indicating the number of hammers obstructed thereby; and means for moving said member out of position to obstruct hammers.

31. In an adding and recording machine, the combination of type-driving hammers; means for obstructing` operation of varying numbers of said hammers, comprising a movable member with stepped abutments to obstruct hammers; a manipulative device for actuating said member; an arm on said member; and an adjustable stop adapted to be engaged by said arm to limit extent of movement of said member.

32. In an adding and recording machine, the combination of a series of type-driving hammers, pavls holding said hammers normally retracted, a releasing bar in connection With each of said pawls, an actuator for moving said releasing bars to disengage said paWls from said hammers, springs holding said releasing bars normally out of position to be engaged by said actuator, means for moving said releasing bars to position to be engaged by said actuator, a coupler supported by one of said releasing bars and adapted to be moved into or out of position to coperate with an adjacent bar, and means for actuating said coupler.

33. In an adding and recording machine, a series of hammers arranged in numerical orders, paWls holding said hammers normally retracted, releasing bars connected to said paivls, an actuator for moving said releasing bars to disengage said pawls from said hammers, means holding said bars normally out or' position to cooperate with said actuator, means for moving said releasing bars individually to position to be engaged by said actuator, means controlled by certain of said releasing bars for moving the adjacent ones in lower orders into position to `be engaged by said actuator, a coupler supported by one of said releasing bars, means for moving said coupler into and out of position to cooperate With the adjacent releasing bar, and means for holding said coupler in either of said positions.

In testimony whereof, We hereunto aiiix our signatures to this specication this 10th day of May, 1909, in the presence of two Witnesses.

JAMES L. DALTON. [n s] JOHN MAGNUS. [11. s]

Witnesses:

Born V. LoWRY, HARRY DUNHAM.

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