US712381A

US712381A - Calculating-machine.

Info

Publication number: US712381A
Application number: US8669901A
Authority: US
Inventors: John T Howieson
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-12-20
Filing date: 1901-12-20
Publication date: 1902-10-28
Anticipated expiration: 1919-10-28

Description

- Patented Oct. 28, I902. J. T. HOWlE-SON.

cALcuLAms cums.

(Applimfian filed Doc. 90. 1901.)

8 Sheets-Sheet I.

(No Model.)

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J. T. HOWIESON.

CALCULATING MACHINE.

Application filed Dec. 90, 1901.)

(No Model.) 8 Sheets-Sheet 4.

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'No. 7|2,38l. Patented Oct. 28, I902. J. T. HOWIESON.

CALCULATING MACHINE.

(Applicnion filed Doc. 80, 1901. (No lpdel.) 8 Sheets-Shut 8.

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UNITED STATES PATENT OFFICE.

JOHN T. IIOWIESON, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO FRANK SPIEKERLWIAN, OF PHILADELPHIA, PENNSYLVANIA.

CALCULATING-MACHINE.

#:IEltGIFICATION forming part of Letters Patent No. 712,381, dated October 28, 1902.

Application filed December 20, 1901. Serial No. 86,699. (No model.)

To all whom, it may concern:

Be it known that 1, JOHN T. HowrnsoN, a citizen of the United States, residing at New York, in the county of New York, State of New York, have in vented certain new and useful Improvements in Calculating-Machines, of which the following is a description, reference being had to the accompanying drawings and to the figures of reference marked thereon.

My invention relates to calculating devices and is especially designed and intended to be used in connection with oras an attachment to a type-writing machine, though it embodies features of construction and combination of elements applicable to key-operated calculating-machines generally and is capable of use separate from a type-writing machine.

As an attachment for type-writing machines it comprises a device adapted to be readily connected to the frame of a type-writing machine and carrying calculating mechanism adapted to be operated by the numeralkeys only when the paper-carriage has reached a predetermined point in its travel, the numeral-keys being capable of operation at any time during the travel of the paper-carriage other than a particular predetermined series of spaces without effecting operation of the calculating mechanism. The fact that except at the predetermined point in the movement of the carriage the numeral-keys, it operated, do not eifectmovement of the calculating mechanism is of particular importance, as in the form of keyboard commonly used the typebar operated by each key carries two characters, the typebars operated by the nu meral-keys from 2 to 9 commonly carrying punctuationmarks, as well as a numeral, and the l and 0 being the lower-case l and the upper-case 0, respectively, so that it is necessary that these keys be capable of operation without effecting the movement of the calculating mechanism, except while the machine is printing the numbers which it is desired should form the basis of the calculation.

The device further comprises mechanism by which in writing numbers commas may be printed at proper places to point off and in writing numbers representing dollars and cents or other denominations periods or other marks may be printed at proper places without eifecting the accuracy of the calculation made by the device.

Special features of construction of my invention permit by a slight adjustment the printing of entire lines without the operation of the calculating mechanism and also permit the calculating mechanism to be readily disconnected from the key-levers of the machine.

The device is primarily intended to add numbers as they are written in column by the machine and to show the total of the numbers so written directly in front of the operator; but it is so constructed as to be capable of use also for subtraction, as well as for multiplication and division.

With these objects in view and without limitation of the invention to calculating devices for use in connection with or as attachments to type-writing machines my invention consists in the construction and combination of elements hereinafterparticularly pointed out in the claims.

.Referring to the drawings, Figure l is a perspective view showing the calculating device applied to a type-writing machine of the ordinary type. Fig. 2 is a perspective View showing, on an enlarged scale, the attachment carried by the paper-carriage by which the registering devices are thrown into position to be operated. Fig. 3 is a front view of the operating mechanism, the front plate of the machine and the connection with the typewriter keys being removed. Fig. at is a rear view of the machine, part of the mechanism being removed. Fig. 5 is a perspective view showing the tripping devices detached. Fig. (5 is a front view of the machine. Fig. 7 is an end view of the machine. Fig. 8 is a crosssectional view, on an enlarged scale, showing the tripping devices and their connection with the actuating mechanism for the registering-wheels. Fig. 9 is a cross-sectional View showing the operating-lever and its connections, looking toward the left end of the machine. Figs. 10 and 11 are cross-sectional views showing the actuating devices for the registering-wheels at the different points in their operation looking toward the left of the machine.

Figs. 12 and 13 are similar views looking toward the right of the machine. Fig. 14 is a front view with part of the mechanism removed, showing the stop-arms and the means for operating them. Fig. 15 shows a plan and end view of the pawl 53. Fig. 16 shows similar views of the pawl-carrier 51. Fig. 17 is a cross-sectional view of the bearing-piece on which the devices for actuating the registering-wheels are carried. Fig. 18 shows a side and end view of the cam-plate 55. Fig. 19 shows a side and end view of the pawl-carrier 52. Fig. 20 shows in section the manner in which the operating-lever is carried. Fig. 21 shows in cross-section the lever which carries the locking-bail. Fig. 22 is a sectional view showing, on an enlarged scale, the bearing-piece 50 and the devices carried by it. Fig. 23 is a front View showing the full-stroke mechanism. Fig. 24 is a sectional view showing the same mechanism. Fig. 25 is a front view showing the registering-wheels and carrying mechanism. Figs. 26 and 27 are cross-sectional views showing the connections for operating the registering-wheel of higher denomination in the operation of carrying. Fig. 28 is a front view of the camplate 55 and the connection for lifting the carrying-pawls. Fig.29 shows in cross-section and plan View the collar connecting the shaft 27 with the shaft 15. Fig. 30 shows in crosssection and plan the double arm-carrying pawl. Fig. 31 shows in side View and crosssection one of the registering-wheels with its attachments. Fig. 32 shows in side and front view the detent-pawl. Fig. 33 shows in side and front view the upwardly-extending arm carried by the guide-plate 85. Fig. 31 is a sectional view similar to Fig. 22, but extended to show a complete group of the devices carried on the sleeve 11. Fig. 35 is a plan view of the guide-plate, and Fig. 36 is a detail view showing the segmental rack and its connections. 1

Referrlng to the drawings, 1 indicates the frame of a type-writing machine of the type commonly in use, known as the Remington type, having a keyboard 2, of the type commonly known as the universal keyboard, having the numeral-keys 2 to 9, inclusive, arranged in the rearmost row and having the L key (the lower-case 1 being used for the numeral l) in the second row and the 0 key (the upper-case O'being used as the numeral 0) in the third row.

3 indicates the paper-carriage of the typewriting machine.

Directly above and in rear of the keyboard and secured, preferably, to the top plate 4 of the frame are the end plates 5 of the calculating devices. For convenience in attaching them to the top plate these end plates may have their ends bent over, as shown at 5. These end plates are connected by the rods and shafts hereinafter referred to and support the working parts of the device which embodies my invention. A front plate 6,

preferably made in two

parts

6 and 6", eX- tends from one of these end plates to the other and is removably secured thereto in any convenient manner.

Journaled in the end plates 5 is a main shaft 7. Preferably at one end the main shaft is provided with a spring 8, (shown in Fig. 4,) by which it is returned to normal position after it has been rocked on its bearings in the manner and for the purpose hereinafter described.

Carried by the main shaft 7 are a number of radial arms 9, all in the same plane and all of substantially the same length. These radial arms 9, as hereinafter described, form an essential part of the mechanism by which the registering-wheels are operated. These radial arms are preferably made slightly adjustable, being carried for this purpose in holes drilled in the main shaft 7, as shown in Fig. 8, and are held in adjusted position by means of set-screws 10.

Surrounding the main shaft and concentric therewith,bnt not in contact therewith,is a stationary sleeve 11, the ends of which rest in circular recesses 12 in the end plates 5. This sleeve is provided with a series of slots 13, corresponding in number and position to the radial arms 9 and of sufficient length to permit the movement of these arms which they must have to effect their function of moving the actuating devices for the registeringwheels. The sleeve 11 is also provided with a series of openings 14 to permit access to the set-screws 10. On this sleeve 11 are supported, so as to rock freely thereon, the actuating devices by which movement is transmitted to the radial arms (land by which the movement of these radial arms is transmitted to the registering-wheels.

15 is a shaft or rod supported by the endplates 5 and carrying the registering-wheels 16. These registering-wheels are supported by and turn freely on the rod 15 and are each provided with a pinion 16. The rod 15 is not intended to rotate upon its axis, except as hereinafter described for the purpose of resetting the registering-wheels to zero, as hereinafter described.

To the rear of and preferably slightly above the plane of the rod 15 is a stationary rod 17, which serves to support and form a bearing for tripping devices 18, by which at a predetermined point in the movement of the paperoarriage the actuating mechanism of one of the registering-wheels 16 is brought into position to be operated by the operation of any one of the numeral keys of the machine. These tripping devices comprise an upper portion 19, extending forward immediately below the top plate 4: of the type-writing ma chine in position to be struck and forced backward by a device carried by the papercarriage, a vertical portion 20, a rearwardlyextending horizontal portion 21, a sleeve 22 carried on the rod 17 and adapted to rock on said rod in the ordinary operation of the mechanism and to be shifted longitudinally of the rod when desired. Each of the sleeves 22 carries a rearwardly-projecting pin 22, by which the sleeve may be shifted longitudinally, as hereinafter described. The tripping mechanism also includes a downwardly-extending arm 23, carried by the rod 17 and arranged to be rocked thereon with the sleeve 22,but held againstlongitudinal movement on the rod. These tripping devices correspond in number with the registering-wheels 16.

The upper portions 19 of the tripping devices are arranged in a group, preferably near the center of the registering mechanism. One of them, the central one in the construction shown,will be directly above the actuating mechanism controlled by it, so that its horizontal portion 21 extends backward in the plane of the upper portion 19 and vertical portion 20. The other tripping devices each have between the vertical portion 20 and the rearwardly-extending portion 21 a horizontal portion 24, extending in a direction parallel with the rod 17 to the right or left, as the case may be, a distance sufficient to bring the rearwardly-extending portion 21 in the plane of the actuating mechanism controlled by it. The tripping devices at the right of the center will have their horizontal portions 24 extend to the left, and those at the left of the center will have their horizon tal portions 24 extend to the right. The upper portion 19 of the tripping device at the extreme right of the group, being the upper portion 19 first struck by the device carried by the papercarriage, will be arranged through the horizontal portion 24 and rearwardly-connected portion 21, connectedwith it, to bring into operative position the actuating devices for the registering-wheel atthe extreme left, which in the mechanism shown, which has nine registering-wheels, will be, if numbers are to be written without indications of denominations, the hundred-mil-- lions wheel. If numbers representing dollars and cents are to be written, this wheel will be the millions-wheel. The tripping device at the extreme left, being the device last struck, will be arranged to bring into operative position the actuating devices for the registering-wheel at the extreme right,which will be the units-wheel. The arrangement of these tripping devices is clearly shown in Figs. 3 and 5.

The downwardly-extending arm 23 has at its upper end a sleeve 25, surrounding the rod 17. These sleeves 25 are preferably of such length that they fill the length of the rod and are thus prevented from longitudinal movement. The sleeve 22surrounds and rocks with the sleeve 25 and is provided with a longitudinal slot 23, which fits over the arm 23. The sleeve 22 is thus permitted movement longitudinally of the rod without moving the arm 23, and at the same time any rocking of the sleeve 22 rocks the arm 23.

To the rear and above the plane of the rod 'ferent numerals.

15, which carries the registering-wheels, is a stationary rod 27, supported by the end plates 5, on which are so carried as to freely rock thereon the double-armed pawls 28 of the carrying mechanism, which will be more fully hereinafter described.

Above and in front of the main shaft 7 is a stationary rod 26,carrying detent-pawls 104.

Below the plane of the rod 15 and near the front of the device is a rocking plate 29, pivoted at its ends to the end plates 5, to which are secured a series of stop-arms 30, each of which is arranged in the path of one of the segmental racks by which the registeringwheels 16 are operated, and are adapted through arms 31, also secured to the rocking plate 29,(see Figs. 12and 13,) to be moved into position to stop the movement of the racks to prevent overthrow, as more fully described hereinafter.

Below the main shaft 7 and preferably toward the front of the device is a stationary guide-rod 32, carried by the end plates 5.

Journaled on a split bushing 11, secured to the sleeve 11, which serves also as end bearings, so as to rock freely thereon, are a number of levers 33. (Shown in detail in Figs. 9 and 20.) These levers are nine in number to correspond with the nine numeral-keys of the type-writing machine. In order to prevent lateral movement of these levers, they each have a double bearing on the split bushing by means of an arm 34, secured to the lever 33. These levers are each arranged in proximity to one of the radial arms 9 and are each provided with a projection 35, preferably on the arm 34:, bent at a right angle and adapted to engage the rear of one of the arms 9, so as to carry the arm forward with it, rocking the shaft 7. The projection 35 will be positioned on the several levers at different points corresponding with the unit values of the dif- The lever or the arm 34, as the case may be, carries, in addition to the projection 35,2. rearwardly-extending arm 36, adapted to engage the under side of a lockingbail 89, hereinafter described, and carries also a downwardly-extending arm 37, adapted to contact with the guide-rod to stop further upward movement of the lever. The arms 36 and 37 are in the same plane as the part on which they are carried. The lever-carries also a projection 38 bent at right angles and perforated for the attachment of a spring 39, by which the lever is returned to place after being depressed.

Pivotally connected to each of the levers 33 V at 40 is a link 41, connecting the lever with the key-lever of one of the numeral-keys of the type writing machine, so that as the numeral-key is depressed to print the lever 33 connected with it will also be depressed, causing, as the projection 35 comes in contact with the radial arm 9, the main shaft 7 to be rocked through a greater or less arc.

The link 41 is preferably made in two

parts

2 and 13, as shown, the two parts having a &

screw connection 44 for the purposes of adjustment. The lower part 43 is provided at its lower end'with an open slot 45, adapted to fit a pin 46, carried in any convenient manner by the key-lever of the machine. The part 43 is preferably also provided with a slot 47, with which a rod 48, carried by levers 49, engages for the purpose of locking the link out of connection with the type-lever when desired.

In the ordinary use of the type-writing machine, even when the levers 33 are connected to the numeral-keys, these keys may be operated without effecting any movement of any part of the registering mechanism except the depression of the levers 33 and the rocking of the main shaft.

The levers 33 are extended forward to form operating-handles 33, by which they may be operated independently of the type-writing keys.

The devices by which the rocking of the main shaft is caused to actuate the registering mechanism are arranged in groups corresponding in number with the registeringwheels 16. Each of these groups comprises a bearing-piece 50, supported by and turning freely on the sleeve 11, a pawl-carrier 51, arranged to rock on the sleeve 11, a pawlcarrier 52, arranged on the bearing-piece, the pawl-

carriers

51 and 52, carrying, respectively, pawls 53 and 54, a cam-plate 55 between the pawl-carriers in proximity to the pawl-carrier 51, arranged to have vertical movement, but not to have rocking movement and a segmental rack 56 in proximity to the pawl-carrier 52 and arranged to have both vertical and rocking movement. In its rocking movement this rack moves with the pawlcarrier 52 in both forward and return movement, and in its vertical movement it moves independently of this pawl-carrier. In both its movements it is independent of the pawlcarrier 51.

The bearing-piece 50 has formed thereon a central disk or shoulder 57 and on one side thereof a bearing 58 for the cam-plate adapted to turn freely within an opening in the cam-plate and to permit and guide its vertical movement. It also has on the opposite side a non-circular portion 59, adapted to fit within an opening in the segmental rack 56 and to permit its vertical movement without rocking movement relative to the bearing-piece. The pawl-carrier 52 is supported on a portion 60 of the bearing-piece and is secured to the bearing-piece by riveting or otherwise. The several elements carried by the bearing-piece are held together between the pawl-carrier 52 on one side of the group of elements and by a washer 61, riveted or otherwise secured to the bearing-piece, on the other side.

The pawl 53 is pivoted to a rearward extension 62 of the pawl-carrier 51 and is so arranged that its forward hooked end 63 is in the plane of one of the arms 9, so that when depressed it will be engaged by the end of this arm. A spring 64, secured at one end to a projection 65 on the pawl-carrier, presses by its free end against the rear end of the pawl below its pivot-point, so that the forward end of the pawl is normally raised out of engagement with the arm 9.

The pawl 53 has at a point forward of its pivot a rearwardly and upwardly extending finger 66. When the registering devices are in the position of rest, this finger 66 lies directly in the path of and preferably in contact with the depending arm 23, so that the forward rocking movement of this arm will cause the pawl to rock on its pivot, depressing its forward hooked end 63 into position to be engaged by the arm 9, so that as the arm is rocked forward it will carry the pawl and its pawl-carrier forward with it.

The pawl-carrier 51 carries on the side next the cam-plate 55 a roller 67 and has on its front edge a projection so positioned as to be immediately behind the end of the arm 9 when it is engaged by the hooked end 63 of the pawl and has also a rearwardly-extending finger 79, adapted to strike the finger 73 of the cam-plate 55 on the return movement of the pawl-carrier, and thus to stop it in proper position.

The cam-plate 55 has its upper edge curved, as shown in detail in Fig. 18, this edge being bent over toward the pawl-carrier 51 to form a flange 68. The rear end of this flange is bent upward, as shown at 69. The cam-plate is provided with an opening 70 to fit over the bearing-piece and in an extension has an opening 71 to fit over the guide-rod 32. The

openings

70 and 71 are of such form as to permit the cam-plate to move freely in a vertical direction.

When the registering devices are in a position of rest, the roller 67 of the pawl-carrier 51 lies immediately in rear of the upwardly-bent end 69 of the flange'of the camplate. As the pawl-carrier is moved forward by the action of the arm 9 after the pawl 53 has been caused to engage it by depending arm 23 this roller 67 will as it comes in contact with the end 69 cause the cam-plate to be lifted until the roller can pass beneath the main portion of the flange 68. As the pawlcarrier continues its forward movement the roller 67 will sustain the cam-plate in its raised position. The cam-plate is also provided with a rearward extension which carries two

fingers

72 and 73, bent at right angles to the main portion of the cam-plate and extending in opposite directions, the finger 72 being above and to the rear of the finger 73. The finger 72 is of sulficient length to extend past the segmental rack 55 into the plane of the pawl 54 of the pawl-carrier 52, and when the devices are in position of rest the end of this finger is immediately below the tailpiece 82 of the pawl 54, so that as the cam-plate is lifted it will cause this pawl to turn on its pivot to depress its forward end. The finger 73 lies in the plane of movement of the pawlcarrier 51 and forms a stop against which the projection 79 on the pawl-carrier strikes to prevent its further rearward movement after it has returned to position. The segmental rack 56 carries on the side next the cam-plate a roller 74, so placed as to ride upon the flange 68. The rack has an opening formed therein adapted to fit over and to slide on the noncircular portion 59 of the bearing-piece and has at its lower end means for attachment of a spring 76, by which the rack is drawn downwardly and turned to its rearmost position, the lower end of the spring 76 being secured to a stationary rod 77. The rack has on its upper edge ten teeth adapted when raised into operative position to mesh with the teeth of the pinion 16 of the registeringwvheel 16. The pawl-carrier 52 is secured by a rivet or otherwise to thenon-circular portion 59 of the bearing-piece. To its upper portion is pivoted the pawl 54. The forward portion of this pawl is of substantially the same shape as but slightlylonger than the corresponding portion of the pawl 54 and has the hooked end 81, adapted to be engaged by the upper end of an arm 9. The pawl has a tailpiece 82, which normally rests directly above the finger 72 of the cam-plate, as above stated. A spring 83, secured at its lower end to the pawl-carrier, bears at its free end against the rear end of the pawl, holding the forward end of the pawl normally raised.

The pawls 53 and 54 are each provided forward of their pivots with an upwardly-extending arm 84, adapted to bear against the under side of a curved guide-plate 85, which is secured at its ends to the end plates 5, so that as the pawls move forward their forward ends are prevented from being raised out of engagement with the arms 9. From this description it will be seen that by pressing rearward the upper end of one of the tripping devices the depending arm 23 will be swung forward against the projection 66 of the pawl 53, depressing the forward end of the pawl into position to engage one of the arms 9. As one of the numeral-keys is depressed, drawing down the lever 33, the main shaft, with its arms 9, will be rocked by the action of the projection 35 of the arm 31L against the arm 9, with which it is adapted to contact, and the arm 9, lying in the plane of the pawl 53, will engage the hooked end 63 and draw the pawl and with it the pawl-carrier 51 forward. As the pawl-carrier 51 moves forward the roller 67, coming in contact with the under side of the inclined end 69 of the flange 68, will cause the cam-plate to move vertically upward, lifting with it, through the roller 71, the segmental rack 56. At the same time the finger 72 of the cam-plate lifts the tailpiece of the pawl 5t, depressing its hooked end 81 into the path of the arm 9, which lies in the plane of this pawl. The further forward movement of this arm 9 carries the pawl 54, its carrier 52, and the segmental rack 56 forward to effect the rotation of the registering-wheel 16. As the lever 33 is depressed by the depression of the numeral-key a pin or screw 86, carried by it, enters the open slot 37in the arm 31 and continues until it is stopped in the operation of the typewriting machine by the striking of the type bar against the platen or in the operation of the calculating-machine as a separate device against the end of the slot. The slot 87 being cam-shaped, the pin or screw causes the arm 31, and with it the rocking plate 29, to which the arm is attached, to rock on its pivots to carrv the stop-arm 30 into the position to strike the forward edge of the segmental rack 56 to stop it at the completion of its movement. The shape of the cam-slot 87 in the arm 31 will differ for the several arms corresponding to the dilferent numeral-keys, so as to move the stop-arm the distance necessary in each case. For instance, the slot in the arm 31 corresponding to the 9 key will be of such shape that the stop-arm 30 will meet and stop the segmental rack only when nine of the teeth have successively acted upon the teeth of the pinion 16 to turn the registering-wheel nine spaces. The slot in the arm 31 corresponding to the 1 key will be of such shape as to quickly rock the plate 29, so that the stop-arm 30 will meet and stop the segmental rack when it has caused the registeringwheel to turn through one space. As the full stroke of the lever 33 is completed it acts, through a linger36, to release the locking-dog of a full-stroke device, so that on the release of the numeralkey the several elements are free to resume their normal position. This return to normal position takes place as follows: The main shaft 7, with the arms 9, is returned to normal position by the spring 8. As the arm 9, which was engaged by the hooked end 63 of the pawl 53, returns under the force of the spring Sit strikes the projection 78 of the pawl-carrier51, and thus causes the pawl-carrier 51, with its pawl 53 and its roller 67, to return with it, the roller 67 being thus carried backward away from beneath the flange 68 of the cam-plate. The segmental rack is momentarily held in its advance position, as its teeth are still in engagement with the teeth of the pinion 16 of the registering-wheel 16, which is held against backward movement by the detent-pawl 10%. As soon, however, as the roller 67 is carried back from beneath the flange 68 of the carnplate the camplate, being no longersupported against the force of the spring 76, drops, and with it the segmental rack drops, and as its teeth are then out of mesh with the teeth of the pinion 16 it is instantly returned to normal position by the force of the spring 76.

Extending from one end plate 5 to the other is a locking-bail 89, which forms part of the device by which a full stroke of the lever 33 is insured. This bail is supported at its ends by rearward extensions 92 of bail-supporting levers and 91, which are carried by and rock freely on the sleeve 11.

One of these bail-supporting levers, preferably that at the left of the mechanism indicated by referencenumeral 90, is provided with a downwardlyextending finger 93, adapted to strike against the rear of the rod 32 to prevent the hail from d roppin g below its normal position. The bailsupporting-lever 91, preferably arranged at the right of the mechanism, is provided with a forwardly-extending finger 94 and with a projection 95 in rear of its bearing on the sleeve 11. Pivoted to the end plate 5 above and forward of the main shaft 7 and preferably directly above the rocking plate 29 is swinging detent-lever 96. Also pivoted to the end plate 5, but at a point above and to the rear of the main shaft 7, is a toothed dog 97. A spring 98, connected at one end to this toothed detent above its center and at the other end to the swinging detent-lever 96, tends to press the forward end of the dog 97 downward and to draw the lower end of the detent-lever 96 rearward against the endof the finger 94.

The rocking plate 29 is provided with an upwardly-extending arm 99, havingits upper end toothed to engage the teeth of the toothed dog. As the rocking plate 29 is rocked by the action of the pin or screw 86 of the lever 33 on the cam-slot 87 the teeth of the arm 99 will move along the under surface of the dog 97 and by engaging the teeth of this dog will be prevented from moving backward until the dog is raised. The rocking plate 29 and the

arms

30 and 31 carried by it will consequently be prevented from resuming normal position until the dog 97 is raised to release the arm 99. As the lever 33 completes its stroke its rearward projection 36 will strike the under side of the bail 89, lifting it and through the extension 92 of the bail-supporting levers and 91 causing these levers to rock on the sleeve 11. As the bail-supporting lever 91 is thus rocked its projection 95 strikes a shoulder on the toothed dog 97 below and forward of its pivot. This raises the forward end of the dog against the force of the spring 98 and releases the lever 99, permitting the rock-shaft to resume'its normal position. At the same instant that the projection 95 on the bail-su pporting lever strikes the shoulder 100 on the dog 97 its finger 94 passes below a shoulder 101 on the detentlever 96, by which it is engaged, thus holding the bail-carrying lever in such position that it in turn holds the dog 97 in its raised position out of engagement with the teeth of the arm 98. The parts are held in this position until the rocking plate, with its arms 30 and 3l,resumesits normal position. As it resumes its normal position a stop 102, carried by the arm 99,preferably made adjustable, as shown, strikes the lower end of the detent 96, throwing it forward, releasing the finger 94 and permitting the bail-carrying levers and the dog 97 to resume their normal positions.

By the above construction it will be seen that after the lever 33 has begun its movement it cannot be brought back to its normal position except by continuing its movement to completion of its full stroke.

The registering-wheel 16 carries on the side opposite to the pinion 16 a ratchet-wheel 103, with which a detent-pawl 104 engages to prevent backward movement of the registeringwheel after it has once been rotated. For the purpose of carrying from the units-wheel to the tens-wheel, from the tens-wheel to the hundreds-wheel, and so on, I provide the carrying mechanism, which I will now describe.

Each of the registering-wheels except the highest-is provided on the side toward the next higher wheel with a radial pin 105, preferably bent to the form shown in Fig. 31, and the periphery of the wheel is cut away, as shown in Figs. 30 and 31, to form a cam-surface, as shown. Each of the registeringwheels except the units-wheel is provided on the same side as the pinion 16' with a ratchetwheel 106, secured'to the pinion.

Carried by the stationary rod 27, so as to rock freely thereon, is adouble-armed carrying-pawl 28, the two

arms

107 and 108 of which are arranged, respeotively,in the planes of the radial pin 105 of a lower registeringwheel and in the plane of the ratchet-wheel 106 of the next higher registering wheel. The arm 107 is forked, as shown in Fig. 30, the end of its lower finger 109 lying in the path of the pin 105 and its upper finger 110 being in poisition when the finger 109 is depressed by the pin 105 to ride upon the cutaway portion of the registering-wheel, and as the registering-wheel continues its rotation the finger 110, riding up upon the main portion of the wheel, will raise the lower finger 109 to normal position. The arm 108 of the carrying-pawl has pivoted to it at its forward end the forward end of a pawl 111, the rear end 112 of which is of sufiicient weight to insure the pawl swinging forward, as shown in Figs. 26 and 27, to engage the ratchet-wheel 106 of the higher registering-wheel. The tooth 113 of the pawl 111 is made with parallel front and rear edges, as shown in Figs. 26 and 27. Secured to the guide-plate 85 is an upright arm 114, having at its upper end a projecv tion 115, so shaped that it forms a guide for the tooth 113 of the pawl 111, the tooth 113 when brought down to advance the higher registering-wheel one space fitssnugly between the ratchet-wheel 106 and this projection and is thus prevented from moving the higher wheel more than the one space necessary for carrying. 'If the lower registeringwheel is further rotated, the finger 110 will be raised as it passes OK the cut-away portion of the wheel, and the arm 108 and its pawl 111 will be raised, leaving the higher registering-wheel free to be again rotated. If, however, as will ordinarily be the case, it is necessary to rotate the higher registeringwheel before the lower wheel has'been rotated sufficiently to lift the pawl 111, it will be necessary to provide other means for lift- I secure to the rod between the arms 107 and 100 a collar 117. (Shown in detail in Fig. This collar is firmly clamped on the rod, as shown, and is provided with an extension 118, bent at right angles and fitting over the collar 119 of the rod on which the registeringwheels 16 are carried.

It will be understood that thee-am-plate 55 of the units-registering mechanism will not need to be provided with the upright arm 115.

For the purpose of disconnecting the registering mechanism as a whole from the typewriter keys the levers 49, which, as above described, carry at their lower ends a rod 48, which rests in the slots 47 of the links which connect the levers 33 with the respective numeral-keys, are provided with a rearwardextending arm 118, which is arranged to be engaged by a ratchet in the latch 119 when the links are pushed backward to disconnect them from the numeral-keys. This latch is drawn forward by a spring 120, which also serves to draw the lever 49 forward. An arm 121 on the lever 49 by contacting with the rod 32 prevents forward movement of the lower end of the lever beyond the point at which the lower ends of the links are in operative engagement with the numeral-keys.

In Writing numbers to be added it is usually found desirable to insert commas to point off into periods of three figures each, and in writing numbers representing dollars and cents it is desirable to insert a period between the dollars and the cents. For the purposeofadapting my device forthispurpose I provide means by which the tripping devices 18 maybe shifted longitudinally of the calculating mechanism. The sleeves 22, as before described, are each provided with a rearwardly-extending pin 22, and these pins are arranged to be engaged by open-ended slots 122 in plates 123 121 125, which are carried by levers 126, one or both of which may be forwardly extended to enable the plates to be readily moved vertically. One of these levers 126 is arranged at each end of the calculating device and is pivotally mounted on the shaft27. One of these platesas, for instance, plate 123has its slots 122, arranged as shown in Fig. 4that is, with the two slots at the right of Fig. 4, (the left of the calculating mechanism, since Fig. at is a rear view) being inclined away from the center, both at the same angle, with the next three slots vertical, with the next three slots inclined in the opposite direction to that of the first two slots and all inclined at the same angle, and with the last slot inclined in the samedirectiou,butatagreaterangle. When this plate is pressed downward by raising the forward end of the levers 126, its slots, engaging the pins 22', will shift the sleeves 22 of the tripping devices which control the lowest two registering devices away from the others, so as to open a space between them and the others, in which space should be printed the period separating the two cents-columns froin the dollars. The next three sleeves will not be shifted, the slots being verticall The following three sleeves will be shifted to open a space for the insertion of a comma between the hundreds-figure and the thousands, and the last sleeve will be shifted sufficiently to permit of the insertion of a comma between the hundred thousands and the millions. The plate 121 has the first three of its slots 122 parallel and inclined away from the center, so as to simultaneously shift the tripping devices of the lowest three registering devices a sulficient distance to permit a comma to be inserted between the hundreds and thousands, has its next three slots vertical to retain the tripping devices of the thousands, ten thousands, and hundred thousands registering devices in normal position, and has the last three slots all inclined at the same angle in a direction opposite to the direction of the first three slots in order to shift the tripping devices of the millions, ten millions, and hundred millions registering devices a suflicient distance to permit a comma to be inserted between the hundred thousands and the millions. The third plate 125 has its slots 122 equal distances apart at their upper ends, but having their open ends sufliciently wide to engage the pins 22 of the sleeves 22 in any position to which they may have been shifted, so that when this plate is depressed it will return the sleeves and the tripping devices to normal position. In the use of these shifting devices after the plate 123 01- the plate 124 has been depressed to arrange the tripping devices for dollars and cents or for pointing off the plate 125 should be depressed to return them to normal posit ion before the other plate is depressed.

On the front plate of the calculating mechanism is preferably arranged a series of

guideplates

127, 128, and 129 for holding the front ends of the tripping devices in position and preventing them from being moved sidewise by the tripping-cam carried by the carriage. These plates are slotted, as shown, the slots being arranged to correspond with the slots of the

plates

123, 124, and 125. These guideplates are placed one in front of the other and have end slots 130, through which handscrews 131 extend and by which they may be c1amped in position. They are each preferably provided with downwardly-extending projections 132, by which they may be readily raised or pulled down.

Carried by the paper-carriage is a cam 133, arranged when in operative position to strike as the carriage travels the end 19 of the several tripping devices 18 in succession. This cam is preferably formed on the end of arm 134, hinged to a plate 135, which is supported on a carrier-bar 136, secured by the bent arms 13.7 to the paper-carriage. A screw 138, carried on the plate 135 and bearing against the carrier-bar 136, forms a convenient means for adjusting the position of the plate and the cam 133. The plate 135 is preferably provided with a pointer 139, so arranged as to slide upon the indicator-scale of the machine to enable the cam 133 to be readily set at the proper point. A spring 140, secured at its upper end to the plate 135 and pressing outward at its lower end against a portion 141 of the hinged arm 134 above its pivot, tends to press the cam 133 inward, so that it will be in position to strike the ends 19 of the trippingdevices. Ascrew142,extendingthrough the arm 134 below the pivot and bearing against the plate 135, serves when screwed inward to force the cam 133 away from its operative position against the force of the spring 140.

The carrier-bar 136 may be of any length desired and may be supported from the papercarriage in any convenient way, it being essential only that it so support the cam 133 that this cam in the operation of the machine will be in position to strike the ends of the tripping device and cause them to throw the registering devices into position to be operated when one of the numeral-keys is operated.

In the use of the machine the cam 133 will be so set on the carrier-bar that it will come in contact with and press back the first of the tripping devicesthat is, the tripping device farthest to the rightas the point on the paper carried by the paper-carriage comes in position to have printed thereon the first figure of the number to be Written, and the successive numbers will be written in column beneath the first, units coming under units, tens under tens, &c. As the successive numbers are written the total will appear on the registering-wheels. When it is desired to write the total, by turning the screw 142 the cam 133 will be forced out of operative position and the total may be written without effecting any further operation of the registering devices. The registering-wheels may then be reset to zero, or, if desired, the total may be carried over to the top of the next sheet and the adding operation continued.

The resetting of the registering-wheels to zero may be efiected by any well-known device. In the preferred form of device for this purpose I provide the rod 15 with a series of pins 143, one for each of the registeringwheels, normally out of contact with the radial pins 105, but capable of being brought into contact with these radial pins when the rod 15 is moved longitudinally. For moving the rod 15 longitudinally and for rotating it I provide it with a milled head 144. The rod type-writing machines of other. types.

is also provided with a pin 145, adapted to enter a notch 146 in the end plate 5, and the 'rod is also provided with a spring 147, bearing at one end against the inner side of the end plate and at the other end bearing against a pin 148, carried by the rod. In order to prevent longitudinal movement of the registering-wheels,sleeves 149 are interposed between them and between the first and last of the se- I ries and the end plates. The front plate 6 is preferably made in two

parts

6 and 6", and these parts are secured in any convenient manner to the end plates 5. The lower part 6 of the front plate is provided with slots for the levers 33 and also has a slot 153, through which extends the'end of the toothed dog 97 indicator 158 is mounted, having at one end a milled head 159 for rotating it. This indicator carries on one face at points between the third and fourth and between the sixth and seventh registering-wheels commas and on another face carries between the second and third registering-wheels a period and be tween the fifth and sixth registering-Wheels a comma.

The cam 133 may be carried by any moving part of the machine other than the carriage, if preferred. In using the device as a calculating-machine separate from the typewriting machine the tripping devices may be operated in succession by any convenient device and, if desired, may be operated in the opposite order from that in which they are operated by the carriage of the typewriting machine.

I have shown the calculating-machine arranged on the front of the type-writing machine and immediately above and in rear of the keyboard, and while I regard this as the most desirable position, as the registeringwheels are thus in convenient position to be seen by the operator, I do not desire to be understood as limiting my invention to this particular arrangement, as the machine may be placed in any relation to the operating parts of the type-writing machine so long as it is so placed that it may be operated by the typelevers,-and while my invention is shown in connection with a particular type of typewriting machine it may evidently without material change be adapted for use with So, also, while I have indicated the preferred arrangement of the tripping devices it will be understood that these devices may. be arranged to be operated by a device carried on any moving part of the type-writing machine and may'extend into the path of such device,

whether such device be carried above or below the top plate of the machine or in the front or rear of the carriage.

It will be obvious that many changes may be made in the form and arrangement of the several elements of the machine without departing from the spirit of the invention.

Having thus described my invention, what .I claim as new, and desire to secure by Letters to be operated by its operating means for shifting the position of the tripping device and means for actuating the tripping device; substantially as described.

2. In a calculating-machine the combination of a registering-wheel and mechanism for actuating it, normally disconnected means for operating the mechanisnq for actuating the registering-wheel, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by its operating means, and adjustable means for automatically actuating the tripping device; substantially as described.

3. In a calculating-machine, the combination of a series of registeringwheels and mechanisms for actuating them, means for separately operating the mechanisms for actuating the registering-wheel normally disconnected therewith, a series of tripping devices, each arranged, when operated, to throw one of the mechanisms for actuating the registering-wheel into position to be operated by its operating means and a common means for actuating the several tripping devices; substantially as described.

4. In a calculatingunachine, the combination of aseriesofregistering-wheels and mechanisms for actuating them, means for separately operating the mechanisms for actuating the registering-wheel, normally discounected therewith, a series of tripping devices, each arranged, when operated, to throw one of the mechanisms for actuating the registering-wheel into position to be operated by its operating means, and a common means for automatically actuating the tripping devices in succession; substantially as described.

5. In a calculatiug-machine, the combination of a series of registeringwheels and mechanisms for actuating them, means for separately operating the mechanisms for actuating the registering-wheels normally disconnected therewith, a series of tripping devices, each arranged, when operated, to throw one of the mechanisms for actuating the registering-wheels into position to be operated by its operating means, means for automatically actuating the trippingdevices in succession and means for shifting the position of one or more of the tripping devices relative to the others; substantially as described.

6. In a calculating-machine, the combination of a main shaft, a key-lever operating to rock the main shaft, a registering-wheel and mechanism for actuating it and a tripping device arranged, when operated, to throw the mechanism for actuating the registeringwheel into position to be operated by the rocking of the main shaft; substantially as described.

7. In a calculating-machine, the combination of a main shaft, a series of key-levers each operating to rock the main shaft, a registering-wheel and mechanism for actuating it and a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by the rocking of the main shaft; substantially as described.

8. In a calculating-machine, the combination of a main shaft, a key-lever operating to rock the main shaft, a series of registeringwheels and mechanism for actuating them and a series of tripping devices, ,each arranged, when operated, to throw one of the mechanisms for actuating the registeringwheels into position to be operated by the rocking of the main shaft; substantially as described.

9. In a calculating-machine, the combination of a main shaft, a series of key-levers each operating to rock the main shaft, a series of registering-wheels and mechanism for actuating them and a series of tripping devices, each arranged,when operated, to throw one of the mechanisms for actuating the registering-wheels into position to be operated by the rocking of the main shaft; substantially as described.

10. In acalcnlating-machine for use in connection with a type-writing machine, the combination of a main shaft, means connected to a numeral-key of the type-writing machine for rocking the main shaft,a registering-wheel and mechanism for operating it, a tripping device arranged, when operated, to throw the mechanism for actuating the registeringwheel in position to be operated by the rocking of the main shaft, and means carried by a moving part of the type-writing machine to operate the tripping device; substantially as described.

11. Ina calculating-machine for use in connection with a type-writing machine, the combination of a main shaft, means connected to each of the numeral-keys of the type-writing machine for rocking the main shaft, a registering-wheel and mechanism for operating it, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheels in position to be operated by the rocking of the main shaft, and means carried by a moving part of the type-writing machine to operate the tripping device; substantially as described.

12. In a calculating-machine for usein connection with a type-Writing machine, the combination of a main shaft, means connected to a key of the type-writing machine for rocking the main shaft, a series of registering-wheels and mechanisms foroperating them, tripping devices, each arranged, when operated, to throw one of the mechanisms for operating the registering-wheels in position to be operated by the rocking of the main shaft and means carried by a moving part of thetypewriting machine to operate the tripping devices in succession; substantially as described.

13. In acalculating-machine for use in connection with a type-writing machine, the combination of a main shaft, means connected to each of the numeral-keys of the type-writing machine for rockingthe main shaft, a series of registering-wheels and mechanisms for operating them, tripping devices,each arranged, when operated, to throw one of the mechanisms for actuating the registering-wheels in position to be operated by the rocking of the main shaft and means carried by a moving part of the type-writing machine to operate the tripping devices in succession; substantially as described.

14. In a calculating-machine for usein connection with atype-writing machine, the combination of a registering-wheel, mechanisms for actuating the registering-wheel, means connected with a key of the type-writing machine for operating the mechanism for actuating the registering-wheel, normally disconnected therewith, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by its operating means, and means operated by the carriage of the typewriting machine for automati"a lly actuating the tripping devices; substantially as described.

15. In a calculatingmachine for use in connection with a type-writing machine, the combination of a series of registering-wheels, mechanisms for actuating the registeringwheels, means connected with a key of the type-writing machine for operating the mechanisms for actuating the registering-wheels normally disconnected therewith, a series of tripping devices arranged, when operated, to throw one of the registering mechanisms into position to be operated by the operating means, and means operated by the carriage of the type-writing machine for automatically actuating the tripping devices; substantially as described.

16. In a calculating-machine for use in connection withatype-wri ting machine, the combination of a registering-wheel, mechanism for actuating the registering-wheel, means connected with each of the numeral-keys of the type-writing machine for operating the mechanism for actuating the registeringwheels, normally disconnected therewith, a tripping device arranged, when operated, to

throw the registering mechanisms into position to be operated by the operating means, and means operated by the carriage of the type-writing machine for automatically actuating the tripping device; substantially as described.

throw one of the mechanisms for actuating" the registering-wheels into position to be operated by its operating means, means operated by the carriage of the type-writing machine for automatically actuating the trip ping devices, and means for shifting the position of one or more of the tripping devices relative to the others; substantially as described.

18. In a ca l 'pulating-machine for useinconnection with a type-writing machine, the combination of a series of registering-wheels, mechanisms for actuating the registeringwheels, means connected with each of the numeral-keys of the type-writing machine for separately operating the mechanisms for actuating the registering-Wheels, normally disconnected therewith, a series of tripping devices arranged, when operated, to throw one of the mechanisms for actuating the registering-wheels into position to be operated by its operating means, means operated by the carriage of the type-writing machine for automatically actuating the tripping devices, and means for shifting the position of one or more of the tripping devices relative to the others; substantially as described.

19. In a calculating-machine for use in connection with a type-writing machine, the combination of a registering-wheel, mechanism for actuating the registering-wheel, means connected with a key of the type-writing machine for operating the mechanism for actuating the registering-wheel, normally disconnected therewith, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by the operating means, and a device carried by the carriage of the typewriting machine arranged to actuate the tripping device; substantially as described.

20. In a calculating-machine for use in connection with a type-writing machine, the combination of a registering-wheel, mechanism for actuating the registering-wheel, means connected with each'of the numeral-keys of the type-writing machine for operating the mechanism for actuating the registeringwheels, normally disconnected therewith, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by the operating means, and a device carried by the-carriage of the type-writing machine arrangedto actuate the tripping device; substantially as described.

21. In a calculating-machine for use in connection with a type-writing machine, the combination of a registering-wheel, mechanism for actuating the registering-wheel, means connected with a key of the type-writing machine for operating the mechanism for actuating the registering-wheel, normally disconnected therewith, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by the operating means, a device carried by the carriage of the type-writing machine arranged to actuate the tripping device, and means for moving the device carried by the carriage out of position to actuate the tripping devices; substantially as described.

22. In a calculating-machine for use in connection with a type-writing machine, the combination of a registering-wheel, mechanism for actuating the registering-wheel, means connected with each of the numeral-keys of the type-writing machine for operating the mechanism for actuating the registeringwheel, normally disconnected therewith, a tripping device arranged, when operated, to throw the mechanism for actuating the registering-wheel into position to be operated by the operating means, a device carried by the carriage of the type-writin g machine arranged to actuate the tripping device, and means for moving the device carried by the carriage out of position to actuate the tripping devices; substantially as described.

In a calculating-machine, the combination of a registering-wheel provided with a pinion, mechanism for actuating the register ing-wheel, comprising a main shaft arranged to rock on its axis, a segmental rack normally out of engagement with the pinion, so mounted as to be movable vertically relative to the shaft and to rotate on an axis concentric with the axis of the shaft, means actuated by the shaft for raising the rack into engagement with the pinion and for moving the rack while in its raised position to rotate the registering-wheel, means for rocking the main shaft and means for lowering the rack out of engagement with the pinion and for returning it to normal position; substantially as described.

24. In a calculating-machine, the combinatlon of a registering-wheel provided with a pinion, means for preventing backward movement of the registering-wheel, mechanism for actuating the registeringwvhecl, comprising a main shaft arranged to rock on its axis, a segmental rack normally outof engagement with the pinion, so mounted as to be movable vertically relative to the shaft andto rotate on an axis concentric with the axis of the shaft, means actuated by the shaft for raising the rack into engagement with the pinion and for moving the rack while inits raised position to rotate the registering-wheel, means for rocking the main shaft and means for lowering the rack out of engagement with the pin ion and for returning it to normal position; substantially as described.

25. In a calculating-machine, the combination of a registering-wheel provided with apinion, mechanism for actuating the registering-wheel, comprising a rack normally out of engagement with the pinion, meansfor raising the rack into engagement with the pinion, means for moving the rack while in its raised position to rotate the registering-wheel, means for lowering the rack out of engagement with the pinion and for returning the rack to normal position and a common means for actuating the means for raising and the means for moving the rack; substantially as described.

26. In a calculating-machine, tlie combination of a registering-wheel provided with a pinion, means for preventing backward movement of the registering-wheel, mechanism for actuating the registering-wheel, comprising a rack normally out of engagement with the pinion, means for raising the rack into engagement with the pinion, means for moving the rack while in its raised position to rotate the registering-wheel, means for lowering the rack out of engagement with the pinion and for returning the rack to normal position and a common means for actuating the means for raising and the means for moving the rack;

substantially as described.

27. In a calculating-machine, the combination of a registering-wheel, provided with a pinion,means for preventing backward movement of the registering-wheel, mechanism for actuating the registering-wheel comprising a rack normally out of engagement with the pinion, means :for raising the rack into engagement with the pinion, means for moving the rack while in its raised position to rotate the registering-wheel, means, for positively stopping the movement of the rack at a predetermined point, means for lowering the rack out of engagement with the pinion and for returning the rack to normal position, and a common means for actuating the means for raising the rack, for moving the rack and for moving the stopping means into position to effect its function; substantially as described.

28. In a calculating-machine, the combination of a registering-wheel, provided with a pinion,means for preventing backward movement of the registering-wheel, mechanism for actuating the registering-wheel comprising a rack normally out of engagement with the pinion, means for raising the rack into engagement with the pinion, means for moving the rack while in its raised position to rotate the registering-wheel, means for positively stopping the movement of the rack at a predetermined point, means for lowering the rack out of engagement with the pinion'and for returning the rack to normal position, means for locking the rack against rearward 7 UNI/W movement until'it has completed its movement, and a common means for actuating the means for raising the rack, for moving the rack and for moving the stopping means into position to efiect its function; substantially axis of the shaft, means actuated by the shaft for raising the rack into engagement with the pinion and for moving the rack while in its raised position to rotate the shaft carrying the pinion, means for rocking the main shaft and means for lowering the rack out of en-' gagement'with the pinion and for returning it to normal position; substantially as described.

30. The combination of a shaft carrying a pinion, means for preventing backward movement of the pinion, mechanism for actuating the pinion, comprising a main shaft arranged to rock on its axis, a segmental rack normally outof engagement with the pinion,so mounted as to be movable vertically relative to the shaft and to rotate on an axis concentric with the axis of the shaft, means actuated by the shaft for raising the rack into engagement with the pinion and for moving the rack While in its raised position to rotate the shaft carrying the pinion, means for rocking the main shaft and means for lowering the rack out of engagement with the pinion 'and for returning it to normal position; substantially as described.

31. The combination of a shaft carrying a pinion, mechanism for actuating the pinion, comprising a rack normally out of engagement with the pinion, means for raising the rack into engagement with the pinion; means for moving the rack whilein its raised position to rotate the pinion, means for lowering the rack out of engagement with the pinion and for returning the rack to normal position and a common means for actuating the means for raising and the means for moving the rack; substantially as described. I

32. The combination of a shaft carrying a pinion, means for preventing backward movement of the pinion, mechanism for actuating the pinion, comprising a rack normally out of engagement with the pinion, means for raising the rack into engagement with the pinion, means for moving the rack While in its raised position to rotate the pinion, means for lowering the rack out of engagement with the pinion and for returning the rack to normal position and a common means for actuating the means for raising and the means for moving the rack; substantially as described.

33. In a calculating-machine, the combination of a main shaft, means for rocking the be operated by the mainshaft; substantially as described.

35. In a calculating-machine, the combination of a main shaft, a stationary sleeve surrounding the main shaft, a registering-wheel and mechanism carried by the sleeve and rotatable thereon, arranged to be operated by the main shaft, and means for rocking the main shaft also carried by the sleeve and rotatable thereon; substantially as described;

36. In a calculating-machine, the combination of a registering-wheel provided with a pinion and mechanism for actuating the registering-wheel comprising a segmental rack I normally out of engagement with the pinion, provided with a roller, a cam-plate having a flange forming a track for said roller, means for raising the cam-plate to raise the segmental rack into engagement with the pinion of the registering-wheel and means for moving the rack to rotate the registering-wheel substantially as described.

37. In a calculating-machine, the combination of a main shaft having radial arms, a registering- Wheel provided with a pinion, mechanism for actuating the registeringwheel, comprising a segmental rack normally out of engagement with the pinion, provided with a roller, a cam-plate having a flange forming a track for said roller, means for raising the cam-plate to raise the segmental rack into engagement with the pinion of the registering-wheel, means for rocking the main shaft and means operated by the radial arms of the rock-shaft for raising the cam-plate toraise the segmental rack into engagement with the pinion of the registering-wheel and for moving the rack to rotate the registering-wheel; substantially as described.

38. In a calculating-machine the combination of a main shaft having radial arms,a registering-wheel provided with a pinion, mechanism for actuating the registeringwheel, comprising a segmental rack normally out of engagement with the pinion, provided with a roller, means for raising the rack into engagement with the pinion, com prising a cam-plate, having a flange forming a track for said roller, means for raising the cam-plate to raise the segmental rack into engagement with the roller comprising a pawlcarrier provided with a roller, arranged to engage the under side of the flange of the camplate, and a pawl adapted to engage one of