US868666A

US868666A - Adding-machine.

Info

Publication number: US868666A
Application number: US33273306A
Authority: US
Inventors: Benjamin Hoskins
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-08-31
Filing date: 1906-08-31
Publication date: 1907-10-22
Anticipated expiration: 1924-10-22

Description

PA-TENTED 001". 22, 190 7.

' B. HUSKINS. ADDING MACHINE. APPLIUATIDN FILED AUG. 81, 190B.

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I No. 868,666.

PATENTED OOT. 22, 1907. B. HOSKINS.

ADDING MACHINE.

APPLICATION FILED AUG. 31, 1906.

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B. HOSKINS.

ADDING MACHINE. APPLIOATiON FILED we. 81. 1906.

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PATENTED OUT. 22. 1907.

B. HOSKINS. ADDING MACHINE.

APPLICATION FILED AUG. a1, 1906.

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W/ TNE SSE S BENJAMIN HOSKINS, OF SEATTLE, \K'ASIIINGTON.

ADDIN G-MACHIN E Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed August 31, 1906. Serial No. 332,733.

To all whom it may concern:

Be it known that I, BENJAMIN HosKINs, a citizen of the. United States, and a resident of Seattle, in the county of King and State of Washington, have invented a new and Improved Adding-Machine, of which the following is a full, clear, and exact description.

This invention relates to adding machines, such as used in banks and similar institutions for adding itemized amounts.

The object of the invention is to produce a machine of simple construction which will operate 'to add the different amounts in a simple manner and which will enable the items added to be printed, together with the totals or aggregate amounts.

The .machine is substantially automatic in operation.

The invention consists in the construction and combination of parts to be more fully described herein' after and particularly set forth in the claims.

Reference is to be had to the accompanying drawings forming a part .of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l is a longitudinal vertical section through the machine; Fig. 2 is a horizontal longitudinal section through the machine, substantially on the line 22 in Fig. 1; Fig. 3 is a vertical transverse section taken on the line 33 of Fig. 1, looking toward the left; Fig. 4

is a cross section on the line 4-4 of Fig. 1 and looking toward the left; Fig.5 is a vertical longitudinal section through the case of the machine, representing the mechanism as removed; this view is taken substantially in the plane of the line 55 of Fig. 6; Fig. 6 is a horizontal section taken on the line 6-6 of Fig. 5, but representing the inner framing of the mechanism in position; Fig. 7 is a side elevation of one of the frame plates which support the mechanism of the machine, the whe'els of the mechanism being indicated indotted lines; Fig. 8 is a side elevation of one of the carrier wheels; Fig. 9 is a side elevation of one of the total-printing wheels; Fig. 10 is a detail showing several oi the carrier wheels and total-printing wheels, and illustrating the manner in which the carrying operation is effected; Fig. 11 is a side elevation of one of the item-printing wheels which carry the finger levers; Fig. 11 is a side elevation of one of the ratchet gears which cooperate respectively with the item-printing wheels to transmit the movement of the finger levers to the adding mechanism; Fig. 12 is a detail plan-showing the mechanism for returning the carrier wheels and total-printing wheels to zero; in this view, a part of the case is shown in cross section; Fig. 1?; is a side elevation showing a portion of the exterior of the case in the locality of the mechanism shown in Fig. 12; Fig. 14 is a detail end elevation of a locking device which cooperates with the other parts during the item-printing operation; Fig. 15 is a plan of the device shown in Fig. 14, a portion of the same being broken away; Fig. 16 is a plan of the table upon which the machine is adapted to operate; and Fig. 17 is a side elevation showing further details of the parts for locking the mechanism during the item-printing operation.

Referring more particularly to the parts, 1 represents the case of the machine, which is of common form,'presenting a rounded dome 2 toward the rear and a forwardly projecting foot 3. Under the dome 2 there is arranged a transverse main shaft 4, the extremities whereof are received in curved slots or recesses 5 formed in the side Walls of the case as indicated most clearly in Figs. 4 and 5. At its extremities. this main shaft 4 is provided with collars 6 to which collars helical springs 7 are attached. These springs extend upwardly in an inclined direction, as indicated in Fig. 1, and their upper extremities are attached to pins 8 which are fixed in the side wall of the case as shown. From this construction, it should be understood that a force may depress the main shaft 4, and when such a force would cease to act, the spring 7 would return the shaft to its normal elevated position.

As indicated most clearly n Fig. 4, upon the main shaft 4 I provide a plurality of item-printing wheels 9. These wheels are held between two frame plates 10, which frame plates are disposed near the side walls of the case, as shown. The form of these frame plates is very clearly illustrated in Fig. 7; they are rigidly connected near their upper edges by two transverse bars 11 and 12, which operate as stopsfor finger levers 13, in a manner which will be described more fully hereinafter. The frame-plates 10 with the bars connecting them, constitute a main frame or depressible frame.

The form of the item-printing wheels is very clearly shown in Fig. 11. Each wheel has a substantially circular body 14 whichis formed at one side with a projecting fin or segment 15. On its outer face, each of these segments 15 is provided with a plurality of printing faces lGwhich are numbered consecutively 1 to 9 and zero. In each segment there is formed a circumferential slot 17 and the inner edge of this slot is provided with a plurality of notches or recesses 18 which lie respectively opposite to the printing faces 16 as shown. Each printing wheel is provided with a laterally projecting hub 19 and the side face of each of these hubs is formed with recesses 20 in which are placed pawls 21, the points whereof tend to project just beyond the periphery of the hubs as shown, being pressed toward this position by small springs 22. On each of the hubs 19 there is loosely mounted a ratchet gear wheel 23, and one of these gear wheels is very clearly illustrated in Fig. 11; it is of annular form, formed internally with ratchet teeth 24 and externally with gear teeth 25, so that it constitutes at once a ratchet wheel and a gear wheel. The inner diameter of the ratchet gear is such that it seats nicely upon its corresponding this arrangement it should be understood that the frame hub, so that the pawls 21 may engage the ratchet teeth l gether with the frame plates and their transverse bars,

24. With this arrangement, it should be understood that a forward motion of the hubs 19 will transmit motion to the ratchet teeth 24 and to the gear 23, but with a reversed movement of the hubs, the pawls 2]. will pass freely over the teeth Without rotating the gear.

At a suitable point on its periphery, each of the itemprinting wheels 9 is provided with a guide here or socket 26. In each ofthese sockets there is received the lower extremity of the stem 27 of the finger levers 13. The side wall of the socket is provided with a longitudinal slot 28, and the side of the stem 27 is provided with a laterally projecting pin 29 which extends through this slot and projects laterally across the face of the ratchet gear Wheel 23 so as to lie not far removed from the teeth 25 thereof. In connection with each of the finger levers 13, a helical spring 30 is provided, which is disposed about the stem thereof and thrusts at its lower end against the face of the printing wheel; at its upper end, the spring thrusts against a pin or stud 31 fixed in the stem, so that the spring exerts an upward thrust on the entire finger lever. The upper 'ends of the finger levers 13 pass respectively through slots 32, which are formed ina longitudinal direction in the cover 33 of the demo 2. On the under side of the cover 33 a plurality of quadrants 34 are provided, which are curved about the axis of the shaft 4 as a center. The inner edge of each of these quadrants is provided with notches 35 which are preferably of D-form as shown, and ten in number. Each of the finger levers is provided just below its corresponding quadrant, with a D-shaped shoulder 36 which is adapted to occupy one of the notches as indicated in Fig. l,in which figure the shoulder is representeda's occupying the zero notch. The outer side of the cover 33 of the dome will be provided with numbers corresponding to the

numbers

1, 2, 3, 4, 5, 6, 7, 8 and 9 which are represented in Fig. 1, adjacent, respectively, to the successive notches. it should be understood that there may be as many of the printing wheels 9 as desired. 7 In the present instance, I have illustrated nine.

At a suitable distance-from the main shaft 4, I provide an idler shaft 37, the ends of which are mounted in the side plates 10. Upon this shaft there are mounted a plurality of idlers or idler gears 38, which are provided with teeth which mesh with the teeth 25 of theratchet gear 23. Beyond this idler shaft 37 an auxiliary shaft 39 is provided, which shaft passes through the side plates 10 and has its extremities received in curved slots 01' recesses 40 formed in the side wall of the case, in the manner indicated in'Figs. 5 and 6. From this arrange'ment, it should be understood that the shafts 4 and 39 are similarly mounted, being rigidly secured in the frame plates 10 and having their extremities received in the slots. The auxiliary shaft 39 is supported in a manner very similar to that in which the shaft 4 is supported. For this purpose, the shaft is provided near its extremities, with collars 41, to which helical springs 42 attach, as shown in Fig. 1. These springs extend upwardly and are attached respectively to pins 43 which project in from the side wall of the case. From plates 10, together with all the mechanism carried therebetween, are supported simply by the springs 7 and 42. In this way the transverse shafts 4 and 39, to-

| constitute a frame 44, as illustrated in Fig. 6.

Upon this frame substantially the entire mechanism of the machine is supported. Upon the shaft 39 a plurality of total-printing wheels 45, are provided, one of which is very clearly illustrated in Fig. 9. These wheels are provided with hubs 46 which have teeth and constitute pinions which mesh respectively with the idler gears 38. The faces of these wheels are provided with teeth as shown, the alternate members 47 of which are 'of increased length. The outer faces of the ends of these teeth 47 are formed into printing faces 48 and are provided with type numerals running from zero to 9.

Beyond the shaft 39 I provide a transverse indicator shal't'49, the ends whereof are rotatably mounted in the side plates 10, as indicated in Fig. 12. Upon this indicator shat t I provide a plurality of carrier wheels 50; one of these carrier wheels is very clearly illustrated in Fig. 8. They have the same general form and diameter as the totalprinting wheels 45, presenting teeth on their outer faces, the alternate members 51 whereof are of increased length. These carrier wheels 50 are in mesh with the total-printing wheels, in the manner indicated in Fig. 10. They are not inprecise alinement therewith, but the carrier wheels are displaced slightly toward the left, as indicated in Fig. 10, and one face of each of the carrier wheels is provided with a. laterally projecting dog 52, which dog is formed simply by extending one 'of the teeth of the gear beyond its side face, as shown in Fig. 10. From this arrangement, when the advance motion is transmitted from a total-printing wheel to its corresponding carrier wheel, it follows that when the carrier has made one complete revolution, its (log 52 will come into contact with the next adjacent total-printing wheel, so that this Wheel will be advanced to two spaces; that is, through one unit. In this connection, it should be understood that the dog 52 projects sufliciently to enable it to engage with the ieeth of the next printing wheel as shown. It should be understood, also, that the gears increase progressively from right to left in denomination, so that the gear at the extreme right of the machine is a unit gear,

the next being a tens gear, and so on. -There are, of course, ten of the long teeth on each of the carrier wheels, which are similar in this respect, to the totalprinting wheels. The end faces of the long teeth of the carrier wheels 50 are provided with numbers which present faces opposite to a sight opening or window 53 as indicated in Fig. l. The arrangement is such that the number indicated at this point will be the same as the number presented by the type faces on the lower side of the printing Wheels 45. From this arrangement it should be understood that as the finger levers 13 are moved over in adding up a column, the motion thereof is transmitted through the gear trains to-the total-printing wheels 45 and to the carriers or indicator wheels 50.

In order to enable the carrier wheels and the totalprinting wheels to be set back to their zero position, the indicator shaft 49 is provided with a longitudinal slot 54, as indicated in Figs. 1 and 12, and each of the carrier gears is provided at its hub 55 with a recess 56. In this recess I provide a pawl 57 which is pressed inwardly by a spring 58, so that its point is adapted to engage with' the groove 54. With this arrangement, it should be understood that the pawls will not prevent a forward rotation of the carrier wheels; that is, a rotation in the direction of the arrow shown in Fig. 1. However, a rotation of the indicator shaft 49 in a forward direction, that is, in the direction in which the carriers advance, will operate to rotate the carrier wheels as soon as the pawls engage the groove. In this way the carriers may all be brought into alinement upon the indicator shaft. The indicator shaft is normally locked in such a position that when the carriers have been alined as suggested, they will present zeros at the opening 53, and the total-printing wheels 45 will present zeros at the type faces at their lower sides. In order to enable the indicator shaft 49 to be locked in its Zero position, the extremity of the shaft is formed into a reduced neck 59 as illustrated in Fig. 12, and this shaft is formed with a longitudinal groove 59. Slidably mounted upon this neck 59 I provide a thumbhead 60 having a sleeve 61, which sleeve passes through a curved slot 62 formed in the side wall of the case as shown very clearly in Fig. 13.

On the inner face of the case a sliding plate or slide 63 is provided, and this plate is provided at diagonally opposite corners with curved slots 64. Through these slots 64 screws 65 pass, which attach the plate to the ease as shown. On the inner face of the plate 63 a recess or notch 66 is provided, which is disposed radially from the axis of the shaft, and adjacent to this notch the sleeve 61 isprovided with aradially projecting finger 67. When this finger is occupying the recess, the thumb-head is locked against rotation. It should be understood, further, that by means of the groove 59, the sleeve 61 is locked against rotation with respect to the neck 59. From this arrangement, when the thumb-head is freed from the notch 66, it may rotate the shaft 49. In order to maintain the finger 67 normally in the recessor notch 66, as shown, the heck 59 is provided with a helical spring 68 which thrusts against the inner end of the sleeve as shown. In the bottom 69 of the case, I provide openings 70 and 71, and across these openings I guide a ribbon such as a typewriter ribbon 72, the ends of which ribbon are received upon spools 73 and 74. It should be understood that in setting the finger levers 13 in adding a certain number of a column, the finger levers are moved to the corresponding notch 35 of the quadrants. I

In this way the printing faces 16 of the printing wheels 9 are brought into position at the opening 70; in other words, if one of the finger levers is set to the number 4, the printing face 16 having the number 4 will be brought to the opening. When an item, for instance, the number 314, has been set up with the finger levers in this manner, the shaft 4, carrying with it the entire end of the frame and the printing wheels, will be forced downwardly, so that the impression of the type will be taken through the ribbon 72 upon a sheet of paper placed therebeneath. It should be understood that when these parts are depressed, the finger levers 13 also move downwardly, and the shoulder 36 thereof will become disengaged from the notches 35. For this reason, it is necessary to provide means for locking the printing wheels against rotation when the item is being printed. The mechanism for this purpose, and also for depressing theshaft 4 so as to enable the printing wheels to print upon the paper, will now be described.

I provide a depressing frame 73 which consists of a pair of side bars 74* disposed respectively adjacent to the side walls of the case. The forward extremities of these side bars are rotatably mounted upon a transverse shaft 75 mounted in the case, as indicated. Near their middle portions, the side bars 74 are formed into yokes 76 which surround the shaft 4, but are normally held out of engagement therewith so that the depressing frame 73 may have a certain amount of downward movement before it engages the shaft. The outer ends of the bars 74 are connected by an elevated cross bar 77, and the free end of the frame is normally held in an elevated position by means of a helical spring 78, as illustrated in Fig. 1. The elevated cross bar 77 is formed with downwardly extending arms 79 which are attached to the side bars 74. In alinement with the cross bar 77, laterally projecting pins 80 are provided, which are received in guide grooves 81 formed in the side walls of the case, as illustrated in Fig. 5 From this arrangement, it should be understood that if the cross bar 77 is depressed, the depressing frame 73 will operate to force the shaft 4 downwardly, carrying with it that end of the frame and the printing wheels. In order to lock the printing wheels against rotation in moving downwardly, I provide a transverse locking bar 82 which extends transversely of the case beneath the printing wheels. The ends of this locking bar pass through slots 83 formed in the side plates as indicated most clearly in Fig. 7. Near its extremities, this bar is supported upon locking levers 84, each of which has its fulcrum at the point 85, and is connected by means of a link 86 with one of the side bars 74; In order to connect the link 86 with the side bar, the side bar is provided with a pin 87 which normally rests in the lower extremity of the slot 88 formed in the end of the link. This slot is for the purpose of allowing a certain play, which is necessitated for reasons which will be stated hereinafter. When the downward movement of the depressing frame begins, the pin 87 operates to force the link 86 downwardly, and this actuates the levers 84 so as to raise the locking bar 82. This looking bar passes through the circumferential slots 17 in the printing wheels 9, and when this raises, as sug gested, it moves up into one of the notches 18 of each wheel. In this way the wheels are all locked against rotation. It should be understood that this movement takes place before the shaft 4 has moved, so that there is no opportunity for the wheels to lose their proper alinement.- A further movement of the depressing frame brings down the wheels, so that they may print, as suggested.

The machine is adapted to operate upon a table 89 illustrated in Fig. 16. Upon this table a large tabulating sheet is placed, and across the table a pair of parallel rails 90 are laid, which rails are formed on their upper sides with rack teeth 91, which are useful in enabling the machine to be fed along the table, so as to print the items in a column. These rails 90 are preferably connected by

cross bars

92 and 93, so that they constitute a frame. The bar 93 is provided with a projection 94 on its lower side, which is adapted to be received in any one of a plurality of slots 95 formed in a projecting edge of the table. In this way the rails may be shifted into different positions on the table, so that a plurality of parallel rows or columns may be printed. At the other end of the table a guide bar 96 is provided, which is parallel with the edge of the table, and this guide bar passes through the extended extremities of the rails, as shown, so that the rails may be slid longitudinally upon the guide bar. In order to limit the movement of the machine upon the rails 90, near their extremities the rails are provided with inwardly projecting pins or stops 97 which are adapted to engage the case to stop the motion of the machine along the rail.

The bottom 09 of the case 1 is provided with longitudinally disposed channels or grooves 98, and in these grooves the aforesaid rails 90 are received. At a suitable point, the bottom of the case is provided with openings 99 which are formed at the channels 98 as in dicated in Fig. 5. At these openings 99 feed wheels 100 are placed. These feed wheels consist simply of gear wheels, the teeth whereof mesh with the teeth of the racks91. Each of these wheels is loosely mounted upon a stud 101, which extends inwardly from the side wall of the case near each of these wheels a second stud 102 is provided, and these studs afford means for securing a small plate 103 near each side of the machine. The purpose of these plates 103 will appear more fully hereinafter. Each of the feed wheels 100 is provided with a rigid ratchet wheel 104, the teeth whereof project in the direction indicated in Fig. 1. Rotatably mounted on each of the studs 101, I provide a pawl arm 105. The extremity of this arm is pivotally attached to a link 106, which extends upwardly and is attached pivotally at 107 to the adjacent side plate 10, as indicated most clearly in Fig; 17. Upon the pawl arm 105 there is pivotally attached a pawl 108, and this pawl projects toward the ratchet wheel 104 and is adapted to engage the teeth thereof, as will appear hereinafter. Near its outer extremity the pawl is supported by a shackle 109, which shackle has the general form of a link, the upper extremity whereof is pivoted at 110 to the link 106 aforesaid. The lower end of this shackle or shackle link is formed with a slot 111 through which the end of the pawl 108 projects. On its under side the pawl is formed with a shoulder 112 against which the lower end of the shackle link rests, as indicated. From this arrangement, it should be understood that when the rear end of the frame 44 is depressed, as in printing an item the pawl arms 105 will be, rotated downwardly. The pawls 108 will then run down over the inclined faces of the teeth of the ratchet wheels 104, and after the printing operation, as the rear end of the frame returns to its normal elevated position, the pawls will engage with the ratchet wheels and rotate the feed wheels 100. In this way, with every down and upward movement of the rear end of the frame 44, the machine will be fed longitudinally along the rails 90. In this way the successive items will be printed in a column. It should be understood that when the rear end of the frame 44 is in its elevated position, the shackle links 109.0perate to hold the pawls 108 out of engagement with the ratchet wheels.

In order to return all of the finger levers 13 auto: matically to their zero position after the item has been printed, I provide a transversely disposed return bar 113 which extends across the machine under the printing wheels 9 as indicated in Fig. 3. The ends of this bar are supported upon side arms 114, which side arms are formed above into collars 115 which are rotatably mounted on the main shaft 4. Adjacent to the collars 115 I provide coiled springs 110 which are disposed around the shaft 4 as illustrated in Fig. 4. The inner end of these springs is attached rigidly to the shaft and the outer end is attached to the corresponding collar, so that the springs tend to hold the bar near the bottom of the case, as illustrated in Fig. 1.. Against this return bar the shoulders 117 at the ends of the segments 15 normally rest. From this arrangement, when the printing wheels are set over or advanced by the finger levers, this return bar is displaced in a rearward direc tion. Of course, if it should happen that one of the finger levers is set over further than the others, it will advance this return bar beyond the printing wheels corresponding to the other levers. In this connection, it should be understood that if all of the finger levers were disconnected from their notches 35 which hold them in position, the springs 116 would operate, through the medium of the return bar, to bring back all of the printing wheels to their normal or zero position. In other words, the springs would operate to return the finger levers to their normal or zero positions.

It should be understood that when the rear end of the frame 44 is depressed in printing an item, all ofv the shoulders 36 become disengaged from their quadrants 34, the printing wheels being held in a fixed position by the locking bar 82. When the upward movement of the frame has progressed sufficiently to disengage the printing wheels from the locking bar 82, thereturn bar then operates to return the finger levers to their normal zero position. By reason of the fact that the springs 7 would operate to return the frame 73 to its normal elevated position, I provide means for locking the frame for a short while in its depressed position in order to allow time for the return bar to act. For this purpose, on each side of the machine I provide locking pawls 118, which pawls are simple in construction; each of these pawls is rigidly formed on a rotatable pin 119, and these pins are supported rotatably in the side walls of the case at their outer ends and in the aforesaid plates 103 at their inner ends. Rigid with each pin 119 there is provided a spring arm 120 which extends upwardly and has a spring 121 attached thereto, which spring leads forwardly in a horizontal position and has its forward extremity attached. to a pin 122 projecting inwardly from the side wall of the case. These pawls 118 are arranged opposite to the feed wheels 100, and the springs 121 operate so that they tendto hold the pawls in engagement with the feed wheels. However, means is provided for normally holding the pawlsout of engagement with the feed wheels. For this purpose, each of the pins 119 is provided toward its inner extremity with an upwardly projecting finger 123, as illustrated most clearly in Figs. 14 and 15. This finger projects into the path of the side arms 114 of the return bar 113, when the return bar is away from its normal position. From this arrangement it will be understood that when the return bar lies in its normal position, the forward faces of the arms 114 press the fingers 123 forward, and in this way the pawls 118 are held out of engagement with the wheels 100. It will be evident, then, that if the item to be printed con- I which has been added, this i the frame takes place about sisted of zeros, a depression of the item-printing wheels would simply effect a printing thereof, after which the return movement of the frame would produce an advance or feed movement of the entire case; but it will also be evident that if the pawls 118 are in engagement with the feed wheels 100, no feed movement can take place, as the ratchet wheels 104 will operate, through the pawls 108, to hold the inner end of the frame in a depressed position, and they will continueto hold the frame in a depressed position until the pawls 118 are thrown out of engagement with the feed wheels by the return bar as it comes to its normal position. In other words, the return bar operates as a release for the means for locking the inner end of the frame in a depressed positionv With this arrangement, it'should be understood that after printing an item, the entire rear end of the frame is locked in a depressed position and is maintained so until all of the printing wheels 9, and I the-finger levers carried thereby, are returned to their zero position, and just as they arrive at their zero position, the return bar strikes the fingers 123, thus releasing the pawls 118 from the feed wheels 100. When this takes place, the upward movement of the frame operates to advance the machine through the rotation of the'feed wheels, as was described above.

When it is desired to print the total of any column can be accomplished by depressing the shaft 39, together with the end of the ham-e44 which carries the total printing wheels 45. It should be understood that when the forward end of the frame is depressed in this manner, the rotation of the shaft 4 as an axis; but when the depression of the rear end of the frame takes place, as in printing an item, rotation takes place around the shaft 39 as an axis. In order to enable the shaft 39 to be forced down as suggested, this shaft has attached thereto a cross bar 124 which lies adjacent to the cross bar 77 referred to above. This cross bar 124 is .provided with downwardly projecting arms 125, which are formed below into collars which encircle the shaft. The end of the cross bar 124 is provided with laterally projecting pins 126 which are received in guide slots 1.27 formed in the side wall of the case, as indicated in Fig. 5. Just above the cross bars 77 and 124, I provide an opening 128 which is closed by a plate 129 having a slot 130 therein. Above this plate there is mounted a sliding base 131 which carries a push button 132. This push button has a stem133 which passes downwardly through the base 131 and through the slot 130, so that its lower extremity may rest upon either of the cross bars. A spring 134 normally maintains the push button 132 in an elevated position. In the position shown in Fig. 1, the push button is adapted to depress the cross bar 77, so as to operate upon the depressing frame 73, as in printing an item. If it is desired to print a tota the push button is simply slid forwardly in the slot 130 so that its stem may rest upon the cross bar 124; then, when it is depressed, it will force down the shaft 39 so that the printing operation will take place at the. total-printing Wheels.

I provide automatic means for feeding the ribbon For this purpose, mounted on trans- 72 between the spools 73 and 74. the said spools, which are rotatably verse shafts 135, are provided with rigid ratchet wheels head 145, which is provided at gagement.

136, the teeth of which project in the'direction indicated. I provide pawl levers 137, the lower extremities whereof are formed with slots 138 respectively, and these slots encircle the shaft 135 as shown. The pawl levers 137 carry pawls 139 which are adapted to cooperate with the teeth of the ratchet wheels, as indicated at the right in Fig. 1. It will be observed that the teeth of one of the ratchet wheels project in the same direction as the teeth of the other ratchet wheels. The outer ends of the pawl levers 137 are pivotally attached to a shifter bar 140, which bar extends longitudinally within the case and is pivotally mounted in a slot 141 in the side wall of the case. At the point where the bar 140 passes the shaft 39, it is offset upwardly to form a yoke 142, which passesaround the shaft as shown. At the rear side of the case, the extremity of the shifter bar 140 carries a spring .143, which is attached th the rear wall of the case and tends to pull the shifter bar longitudinally in that direction. At a suitable point the side wall of the case is provided with a vertical slot 144 through which extends a thumb its inner extremity with a sleeve 146 through which the shifter bar 140 passes. By moving this thumb-head to its lowest possible position in the slot 144, the right hand or inner end of the shifter bar 140 will be raised whereasfif the thumbhead is moved to the opposite position, the shifter bar will be thrown into the position shown in Fig. 1, its inner end being depressed and its outer end being. raised. In this way the pawl arms 137 are shifted longitudinally, so that one or the other, but not both, of the pawls may be in engagement with the ratchet wheel. In Fig. 1 the right-hand pawl is represented in engagement, while the left-hand pawl is out of en The ribbon 72 passes under guide rollers 147 which lie adjacent to the spools 73 and 74. From these rollers the ribbon passes to the spools. In pass ing to the spool 73, the ribbon winds from the under side of the spool, while in passing to the spool 74, it winds over the upper side thereof. From this arrangement, with the parts'in the relation shown-in Fig-1,

it should be understood that if the shifter bar 140 be moved longitudinally toward the left, it will operate, through the pawl arm 137 at the right, to rotate the spool 73, and this rotation will be given in the proper direction to advance the ribbon from the spool 74 toward the spool 73. I provide means for automatieally shifting this shifter bar 140 in the'manner suggested. For this purpose, at the forward end of the shifter bar a link 148 is pivotally attached. This link extends forwardly and is pivotally attached to an arm 149 carried by a rock shaft 150, and this rock shaft is provided with a horizontal arm 151, to the extremity whereof there is attached a link 152. The upper end of this link is formed with a slot 153 through which passes a pin 154 carried by the forward end of one of the side plates 10. When the forward portion of the frame 44 is depressed, as in printing a total, the pin 154 will move downwardly, but will not affect the rock shaft 150, by reason of the presence of the slot 153. However, when the rear end of the frame 44 is forced downwardly, as in printing an item, the link 152 will be drawn upwardly by the pin 154. In this way the rock shaft 150 will be rocked in a direction tomove the arm 149 toward the left. In this way the arm 149,

push button, means actuated by said push button for depressing said item printing wheels, and means actuated by said push button for depressing said total printing wheels. 4

7. In a machine of the class described, in combination. a frame, a plurality of item printing wheels mounted therein, a plurality of total printing wheels mounted upon said frame, a member affording means for depressing said item printing wheels in order to take an impression there from, a second member affording means for depressing said total printing wheels to take an impression therefrom, and a movable push button cooperating with said first or said second member.

8. In a machine of the class described, in combination, a case, a depressible frame mounted therein, a plurality of item printing wheels mounted in said frame, a plurality of total printing wheels mounted in said frame, a slidable push button mounted on said case, a member adapted to be engaged by said push button in one position, affording means for depressing a portion of said frame carrying Said item printing wheels, and a second member adapted to be engaged by said push button in another position thereof and affording means for depressing the portion of said frame adjacent to said total printing wheels.

9. In a machine of the class described, in combination, a depressibie frame,- a plurality of printing wheels carried thereby, a shaft passing through said frame and supporting said printingwheels, springs supporting'said shaft in an elevated position, a'depresslng frame independently movable with respect to said first frame and adapted to depress said first frame to print from said printing wheels, and means for depressing said depressing frame.

10. In a machine of the class described, in combination, a case, a depressible frame mounted therein, a shaft mounted in said frame, a piuralityof printing wheels mounted on said shaft, springs normally holding said shaft in an elevated position, a depressing frame plvotally mounted in said case having yokes surrounding said shaft affording means for depressing the same, and means for holding a transfer ribbon near said printing wheels to take an impression therefrom.

11. In a machine of the class described, in combination, a case-a depres'sible frame mountd therein, a transverse shaft mounted in said frame, a plurality of printing wheels mounted on said shaft, a second shaft passing through said frame, a plurality of printing wheels mounted on said second shaft, means whereby one set of said printing wheels may print items, means whereby the other set of printing wheels-may print totals, a depressing frame pivotally attached to said case engaging one of said shafts to depress the same, means for depressing said depressing frame to depress one of said shafts, and means for depressing the other of said shafts whereby impressions may be taken from said printing wheels.

12. In a machine of the class described, in combination, a case, a depressible frame mounted therein, a shaft passing through said depressible frame, a plurality of item printing wheels mounted on said shaft, :1 second shaft passing through said frame, a plurality of total printing wheels mounted on said second shaft, means for actuating the ends of said shafts in said case, collars mounted on said shafts, springs attached to said collars normally supporting said shafts in an elevated position, and means for depressing said frame adjacent to said item printing wheels and adjacent to said total printing wheels whereby impressions may be taken from said wheels.

13. In a machine of the class described, in combination, a case, a depressible frame mounted therein, a shaft passing through said frame, a plurality of item printing wheels mounted on said shaft, a second shaft passing through said frame, a plurality of total printing wheels mounted on said second shaft, collars mounted on said shafts, springs attached to said collars and normally supporting said shafts from said case in an elevated position, a depressing frame pivotally attached to said case.and having yokes received over said first shaft, means for actuating said depressing frame to depress said first shaft, and means for depressing said second shaft whereby impressions may be taken from said wheels.

14. In a machine of the class described, in combination,

l i l a shaft, a plurality'of item printing wheels mounted on said shaft having finger levers adapter] to set said printing wheels, a member for locking said printing wheels simultaneously against rotation on said shaft, and means for depressing said printing wheels to print therefrom.

15. in a machine of the class described, in combination, a shaft, a plurality of item printing wheels loosely mounted thereupon, finger levers attached to said printing wheels and affording means for setting the same, said printing wheels having a plurality of printing faces for numerals corresponding to the, numbers which may be added by the movement of said finger levers, said finger levers having means for presenting said printing faces to print therefrom, a member engaging said printing wheels for simultaneously locking said printing wheels against rotation on said shaft, and means for depressing said shaft to, print from said printing wheels.

16. In a machine of the class described. in combination, a shaft, means for normally supporting said shaft in an elevated position, a plurality of printing wheels mounted on said shaft, finger levers for advancing said printing wheels, adding mechanism adapted to be advanced by the movement of said printing wheels, said printing wheels having printing faces adapted to aline to indicate an item added by the movement of said levers, a member engaging all of said printing wheels and afiording means for simultaneousiy locking said printing wheels against rotation upon said shaft, and means for take the impression of said printing wheels.

' 17. In a machine of the class described, in combination, a shaft, means for normally holding said shaft in an elevated position, a plurality of item printing wheels rotatably. mounted by said printing wheels and affording means for'setting the same, means for locking said printing wheels individually in the positions in which they are set, means for locking said printing wheels collectively in the positions in which they have been set, and means for depressing said shaft to take the impression from the printing wheels.

18. In a machine of the class described, in combination, a shaft, means for normally holding said shaftin an elevated position, a plurality of item printing wheels rotatably mounted on said shaft; finger levers carried-by said printing wheels and affording means for setting the same, means for locking'sajd printing wheels individually in the position in which they are set, means for locking said printing wheels collectively in the positions in which they have been set, means for depressing said shaft to take the impression from said printing wheels, and adding mechanism advanced by the movement of said printing wheels.

19. In a machineof the class described, in combination, a shaft, means for normally holding said shaft in an elevated position, a plurality of item-printing wheels ro tatably mounted upon said shaft, finger levers carried respectively by said printing wheels, means for individually locking said printing wheels in their set positions, means depressing said shaft to whereby said printing wheels may be disengaged from said last named means by the depression of said shaft, said printing wheels having printing faces adapted to aline to print the item set thereupon, means for locking said printing wheels collectively against rotation upon said shaft,-

and means for depressing said shaft to take an impression from said printing wheels.

20. In a machine of the class described, in combination,

a shaft, a plurality of item printing wheels mounted upon said shaft,- finger levers carried respectively by said printing wheels, quadrants cooperating with said finger levers to set said printing wheels and adapted to become disengaged from said'finger levers by the depression of said shaft, :1 member for locking said printing wheels simultaneously against rotation on said shaft, and means for depressing said shaft to take an impression from said printing wheels.

21. in a machine of the class described, in combination,.

a shaft, a plurality of item printing wheels rotatably mounted upon said shaft, a plurality of finger levers ear ried respectively by said printing wheels, quadrants cooperating respectively with said finger levers to lock said printing wheels in set positions, said quadrants being disposed above said shaft whereby the depression of said shaft (lisengages the linger levers from the said quadrants, a member for locking said printing wheels simultaneously against rotation upon said shaft, and'means for depressing said shaft to take an impression from said printing wheels.

22. In a machine of the class described, in combination, a shaft, a plurality of item printing wheels rotatably mounted upon said shaft, a plurality of finger levers carried respectively by said printing wheels, quadrants cooperating respectively with said finger levers to lock said printing wheels in set positions, said quadrants being disposed above said shaft whereby the depression of said shaft disengages the finger levers from the said quadrants, a member for locking said prlntingmvheeis simultaneously against rotation upon said shaft, means for depressing said shaft tp take an impression from saidprinting wheels, and adding mechanism adapted to be advanced by an advance movement of said-printing wheels.

23. In a machine of the class described, in combination, a shaft, means for normally holding-said shaft in an elevated position, a plurality of printing wheels rotatably mounted upon said shaft, finger levers adapted to advance said printing wheels to their set positions, said printing wheels having a plurality of printing faces adapted to aline to indicate the item added, said printing wheels presenting a plurality of notches adapted to aline when said printing wheels are set, a locking bar, means for advancing said locking bar into said notches to lock said printing wheels collectively against rotation, and-means for depressing said shaft to print from said wheels.

24. In a machine of the class described, in combination,

a shaft, means for normally holding said shaft in an ele-' vated position, a plurality of printing wheels rotatably mounted upon said shaft and having a plurality of print ing faces, meansfor setting said-printing wheels with said printing faces in alinement, said printingwheels having circumferential slots therein presenting an edge with notches adapted to aline, a locking bar passing through said slots, means for advancing said locking bar into said notches to lock said printing wheels collectively against rotation on said shaft, and means for depressing said shaft to print from said wheels. a

25. In a machinepf the class described, in combination, a shaft, means for normally holding the same inan elevated position, a plurality of printing wheels rotatably mounted upon said shaft and having a plurality of printing faces adapted to aline when said wheels are set to in dicate the items added by the movement thereof, said wheels presenting a plurality of circumferentially dis posed notches adapted to aline when said wheels are set, a locking bar, a lever adapted to depress said shaft. and mechanism connecting said lever with said locking bar and actuated by the initial movement of said lever, said mechanism affording-means for advancing said locking bar into said notches to-lock said printing wheels collec tively against rotation, the latter part of the movement of said lever aflz'ording means for depressing said shaft.

26. In a machine of the class described, in combination,-

a shaft, a plurality of printing wheels rotatably mounted thereupon and presenting printing faces adapted to aline to indicate an item added by said machine, a lever affording means for depressing said shaft, means actuated by the first movement of said lever for collectively locking said printing wheels against rotation of said shaft, and means whereby the latter part of the movement of said lever may depress said shaft.

27. In a machine of the class described, in'combination, a shaft, a plurality of printing wheels mounted thereupon and having printing faces adapted to aline to indicate an item added by said machine, said printing wheels present ing an edge with circumferentially disposed notches adapted to aline, a locking bar, a depressing frame adapted to engage said shaft by a full movement thereof, and mechanism connecting said depressing frame with said locking bar actuated by the initial movement of said depressing frame and affording means for locking said printing wheels collectively against rotation upon said shaft.

28. In a machine of the class described, in combination, a shaft, a plurality of printing wheels mounted thereupon and having printing faces adapted to aline to indicate an item added upon said machine, means for setting said printing wheels individually, a locking bar adapted to engage the edges of said printing wheels to lock the same collectively against rotation upon said shaft, a depressing frame having side bars with yokes received over said shaft, said yokes being normally out of engagement with said shaft whereby the latter part, of the movement of said depressing frame will depress said shaft, and mechanism connecting said depressing frame with said locking bar whereby the initial movement of said depressing-frame may advance said locking bar into engagement with said printing wheels.

29. In a machine of the class described, in combination,

a frame, a shaft passing therethrough, a plurality of item printing wheels rotatably mounted upon said shaft, means for setting said printing wheels, sai'd printing wheels hav ing printing faces adapted to aline to indicate an item added upon said machine, a depressing frame having side bars with yokes received over said shaft adapted to engage said shaft to depress the same, said yokes being normally out of engagement with said shaft, whereby the latter part of the movement of saaid depressing frame will depress said shaft, a locking bar adapted to engage said printing wheels to lock the same collectively against rotation upon said shaft, leverssupporting said locking bar, and links respectively connecting said depressing frame with said levers and affording means for actuating said locking bar by the initial movement of said depressing frame.

30. In a machine of the class described, in combination a shaft, a plurality of printing wheels rotatably mounted thereupon and having printing faces adapted to aline to indicate the items added uponsaid machine, pawls carried by said printing wheels, ratchet gear wheels mounted over said shaft and presenting ratchet teeth codperating with said pawls whereby an advance movement of said printing wheels may advance said ratchet gears, said ratchet gear .wheels having external gear teeth, adding mechanism adapted to be driven from said teeth, and means for depressing said shaft to take the impressions of said printing faces.

31. In a machine of the class described, in. combination, a shaft, aplurality of printing wheels rotatably mounted thereupon, ratchet gear wheels surrounding said shaft, a ratchet and pawl connection between said gear wheels and said printing wheels whereby an advance movement only of said printing wheels may advance said gear wheels,

adding mechanism adapted to be advanced by said gear wheels, finger levers affording means for advancing said meat of said printing wheels may advance said ratchet gear wheels, said ratchet gear wheels having gear teeth, adding mechanism adapted to be advanced by said ratchet gear wheels, finger leversslidably mounted in said printing wheels and having projecting pins respectively, which may advance into engagement with said gear teeth to lock said printing wheels to said ratchet gear wheels, said printing wheels having a plurality of printing faces adapted to aline to indicate an item addedon said machine, and means for taking an impression from said printing faces.

33. In a machine of the class described, in combination, a shaft, a plurality of item printing wheels rotatably mounted upon said shaft, ratchet gear wheels surrounding said shaft, a ratchet and pawl connection between said gear wheels and said printing wheels whereby an advance movement only of said printing wheels may advance said gear wheels, adding mechanism adapted to be advanced by said gear wheels, finger levers slidably mounted in said printing wheels respectively, quadrants adapted to lock said finger levers in a plurality of positions, means in connection with said finger levers for locking the same to said and means actuated by the return of said frame for advancing said feed wheels.

39. In a machine of the class described, in combination, a case, a depressible frame therein, a plurality of printing wheels mounted on said frame having printing faces to aline to indicate a number added upon said machine, a table, teed wheels mounted in said case engaging said table and affording means for advancing said case there upon, pawls tending to engage said feed wheels to lock the same against rotation, a return bar affording means for returning said printing wheels to their normal zero position and normally affording means for keeping said pawls out of engagement with said feed wheels, pawl arms mounted adjacent to said ratchet wheels carrying pawls in engagement therewith connecting said pawl arms with said frame, whereby the rising of said frame may tend to rotate said ratchet wheels and said feed wheels, and means for normally holding said frame in an elevated position.

40. In a machine of the class described, in combination; a case, adding mechanism mounted therein, a depressible frame mounted therein, a plurality of printing wheels carried by said frame, a ribbon guided adjacent to said printing wheels and cooperating therewith, spools receiving' the ends of said ribbon, shafts passing through said spools, pawl levers having longitudinally disposed slots received over said shafts, ratchet wheels rigid with said spools, pawls carried respectively by said pawl levers and adapted to engage said ratchet wheels, a shifter bar slidably mounted in said case and pivotally attached to the outer ends of said pawl levers, said shifter bar being pivotally supported between said spools whereby one of said pawls may be held in engagement with its corresponding ratchet wheel while the other of said pawls is maintained out of engagement with its corresponding ratchet wheel, and means actuated by the depression of said frame for moving said shifter bar to actuate either of said pawl levers.

41. In a machine of the class described, in combination, a case, adding mechanism mounted therein, a depressible frame mounted therein, a plurality of printing wheels carried by said frame, a ribbon guided adjacent to said printing wheels and cotiperating therewith, spools receiving the ends of said ribbon, shafts passing through said spools, pawl levers having longitudinally disposed slots received over said shafts, ratchet wheels rigid with said spools, pawls carried respectively by said pawl levers and adapted to engage said ratchet wheels, a shifter bar slidably mounted in said case and pivotally attached to the outer ends of said pawl levers, said shifter bar being pivotally supported between said spools whereby one of said pawls may be held in engagement with its corresponding ratchet wheel while the other of said pawls is maintained out of engagement with its corresponding ratchet wheel, means actuated by the depression of said frame for moving said shifter bar to actuate either of said pawl levers, and means normally holding said shifter bar in an extreme position.

42. In a machine of the class described, in combination, a case, a depressible frame mounted therein, adding mechanism, printing wheels carried by said depressible frame and adapted to print the items addedon said machine, a ribbon coiiperating with said printing wheels, spools receiving the ends of said ribbon having ratchet wheels rigid therewith, shafts passing through said spools, pawl levers having longitudinal slots received over pawls adapted to engage said ratchet bar extending longitudinally of said ribbon and attached to said pawl levers, a spring attached to said shifter bar and normally holding the same in an extreme position, said shifter bar being pivotally supported between said spools whereby either of said pawls may be thrown into engagement with its ratchet wheel while the other of said pawls is disengaged, a rock shaft having an arm, a link connecting said arm with said shifter bar, a second arm rigid with said rock shaft, and a link connecting said second arm to said frame alfording means for actuating said rock shaft to shift said shifter bar.

48. In a, machine of the class described, in combination,

quadrants whereby a slight depression of said finger levers may disengage the same from said quadrants, and means carried by said finger levers whereby a complete depression of said finger levers may lock said finger levers to said gear wheels.

34. In a machine of the class described, in combination, a shaft, a plurality of printing wheels rotatably mounted thereupon, a plurality of gear wheels surrounding said shaft, a ratchet and pawl connection between said gear Wheels and said printing Wheels whereby an advance movement of said printing wheels may advance said gear wheels, adding mechanism adapted to be advanced by said gear wheels, finger levers slidably mounted in said printing wheels having shoulders respectively near the upper extremities thereof, quadrants having notches cooperating with said shoulders to lock said finger levers in set positions, springs tending to force said finger levers in a direction to lock the same on said quadrants, said finger levers being adapted to be disconnected from said quadrants by a partial depression of said finger levers, and pins carried respectively by said finger levers and adapted to engage said gear wheels to lock said finger levers thereto actuated by a complete depression of said finger levers.

35. In a machine of the class described, in combination, a shaft, a plurality of printing wheels rotatably mounted thereupon and having printing faces adapted to aline to indicate an item added by said machine, means 'for individually locking said printing wheels in their set positions and adapted to be disengaged by the depression of said shaft, means for depressing said shaft to take an impression from said printing wheels, means for locking said printing wheels collectively against rotation upon said shaft when said shaft is depressed, and a return bar affording means for returning said printing wheels to their normal position.

36. Ina machine of the class described, in combination, a shaft, a plurality of printing wheels rotatably mounted upon said shaft and having printing faces adapted to aline when said printing wheels are set to indicate the item added upon said machine, means for locking said printing wheels individually in their set positions and adapted to be disengaged by the depression of said shaft, means for locking said printing wheels collectively against rotation upon said shaft, adding mechanism adapted to be advanced by the advance movement of said printing wheels, means for depressing said shaft to take an impression from said printing faces, means for temporarily locking said shaft in a depressed position, and a return bar engaging said printing wheels and affording means to return the same to a zero position when said shaft is locked in its depressed position.

37. In a machine of the class described, in combination, a depressible frame, a shaft mounted thereon, a plurality of printing wheels rotatably mounted on said shaft and having printing faces adapted to aline to indicate an item added by said machine, adding mechanism adapted to be advanced by the advance movement of said printing wheels, finger levers carried respectively by said printing wheels, quadrants cooperating with said finger levers to lock the same in their set positions and adapted to become disengaged from said finger levers when said arm is depressed, means for collectively locking said printing wheels against rotation on said shaft, means for depressing said frame to take an impression from said printing Wheels, and means for returning said printing wheels collectively to their zero position.

88. In a machine of the class described, in combination, a table, a case, adding mechanism mounted in said case, feed Wheels Within said case and adapted to engage said table to advance said case thereupon, a plurality of printing wheels mounted in said case and having printing faces adapted to aline to indicate a number added upon said machine, means for depressing said printing wheels to take an impression from said printing faces, a return bar engaging said printing wheels affording means for returning the same to their zero position, means for locking said printing wheels temporarily against rising when depressed, means for normally holding said printing wheels in an elevated position, a frame carrying said printing wheels and adapted to be depressed therewith,

a liable having rails laid thereupon, :1 misc having feed wheels engaging said rails to advance said cash, adding mechanism uarriwl by said case, a tlcprcssihle frame, printing' wheels carried by said framo, ratchet whnvls rigid with said feed WDQOIS, pawl arms having ])i\\ViS coii wrating; with said ratchet wheels in HGVHHCG said fuutl wheels, links attached to said pawl arms and connected with said frame, shackle links attached to said last links and supporting said pziwls out of engagement with said ratchet 10 wheels when said frame is elevated and permitting the i l i ungugmnvnt 0| said rnichul; whorls by said puwls when said frame is (luprussod, and Invams for depressing said immu to print from said wheels.

in testimony whereof I have signed my name to this spociiiuntiun in thv prusvnuu of two subscribing witnesses. 5

BENJAMlN IIOSKINS Witnesses