US789099A

US789099A - Adding-machine.

Info

Publication number: US789099A
Application number: US4643301A
Authority: US
Inventors: Marquis Hartwell Lockwood
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-02-07
Filing date: 1901-02-07
Publication date: 1905-05-02
Anticipated expiration: 1922-05-02

Description

No. 789,099. PATENTED MAY 2, 1905. M. H. LOOKWOOD.

ADDING MACHINE.

APPLICATION FILED FEB. 7, 1901.

7 SHEET-SHEET 1.

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\AATNEEEEE: Ma: {fi m/Emma mvfim 7M by His ATTORNEY PATENTED MAY 2, 1905.

M. H. LOOKWOOD.

ADDING MACHINE APPLIOATION FILED FEB. 7, 1901.

'7 SHEETSSHEET 2.

FIGS.

ml :Hiiim 7 5 45 wwie w-vwe L WW 1 MTNE55E5= 7 TTBRNEY No. 789,099. PATENTED MAY 2, 1905. M. H. LOGKWOOD.

ADDING MACHINE.

APPLICATION FILED FEB. 7, 1901.

7 SHEETS-SHEET 3.

INVENTEHIA FIQH.

H15 TTDRNEY UUUUUUUUU Mmxzssza A; W any PATENTED MAY 2, 1905.

M. H. LOGKWOOD.

ADDING MACHINE.

APPLICATION FILED FEB. 7, 1901.

7 SHEETS-SHEET 4.

MTNEESEE:

INVENTDFE 1-115 TTEIHNEY PATENTED MAY 2, 1906.

M. H. LOCKWOOD.

ADDING MACHINE.

APPLICATION FILED FEB. 7, 1901.

'7 SHEETS-$31351 5.

MTNE55E5= NV E H= H15 TTEJ NEY PATENTED MAY 2, 1905.

M. H. LOCKWOOD.

ADDING- MACHINE.

APPLICATION FILED FEB. '1, 1901.

7 SHEETS-SHEET 6.

\MTNEEi lmvr-mmm 1W MWW/ MW "A15 TTUHNEY PATENTED MAY 2, 1905.

M. H. LOGKWOUD.

ADDING MAGHINE.

APPLIOATION FILED FEB. 7, 1901.

7 SHEETS-SHEET 7,

INVENTEIH:

TTURNEY 'MTNEEEES:

UNITED STATES Patented May 2, 1905.

PATENT OFFICE.

ADDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 789,099, dated lliay 2, 1905.

Application filed Februar '7, 1901. Serial No. 46,433.

To mil whom H 722mm concern.-

Be it known that I, MAE UIsTIARTWELL LOCKWOOD, a citizen of the United States of America, and a resident of Macon, in the county of Macon and State of Missouri, (postoliice address care Blees Military Academy, Macon, Missouri) have invented certain new and useful Im provements inAdding-Machines, of which the following is a specification.

My invention relates to adding and recording machines; and it has for its object to provide an improved machine of this type.

My invention consists in certain features of construction and combinations and arrangements of parts, all as will be hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings, wherein like reference characters indicate corresponding parts in the various views, Figure 1 is an enlarged plan of the interior of the entire machine. Fig. 2 is a transverse vertical sectional view taken at A A or at about the partition 12. Fig. 3 is a similar section taken at B B. Fig. 3 is a plan view showing the carriage and the feed-racks and pawls therefor. Fig. 4 is a vertical front to rear sectional view taken at O (I. Fig. 5 is a similar sectional view taken at .l) I). Fig. 6 is a similar sectional view taken at E E and cutting the printing device.

Fig. 7 is a front elevation of the platen and its carrying-frame. Fig. 8 is an end view of the same. Fig. 9 is a longitudinal sectional view of the platen. Fig. 10 is a detail view of the line-spacing dog. Fig. 11 is a detail view of the perforated shield carried by the numeral-wheel frame, showing the openings and the index or pointer of the driving-wheel. Fig. 12 is a fragmentary view of the front of the base of the machine, showing the connection of the finger-keys with their rocking shafts. Fig. 18 is a similar view, but looking from the side of the base. Fig. 1 1 is a side view of the selector-wheel and the escapement mechanism on an enlarged scale. 15 is a rear View of the same. Fig. 16 is a crosssection of the frame carrying the numeralwheels, the latter being held out of engagement with the driving-wheel. Fig. 17 is a similar view also showing the pawls thrown out of engagement with the numeral-wheels. Fig. 18 is a view of the shifting pawls and strips in a different position from that shown in Figs. 16 and 17. Fig. 19 is a perspective view of the shifting pawls and strips, showing them in their normal position. Fig. 20 is an end view of a numeral-wheel looking into the drum. Fig. 21 is a sectional view of the drum and hub through their axis. Fig. 22 is an edge view of the partition-disk. Fig. 23 is a side view of a sleeve carried by the hub of the wheel. Fig. 24 is an interior view of the partition-disk. Fig. 25 is a cross-sec tion of the printing-wheel on the line F F of Fig. 27. Fig. 26 is a similar view taken on the line G G of Fig. 27. Fig. 27 is a longi-.

tudinal sectional view of two of the wheels complete. Fig. 28 is a perspective view of a partition-disk without its pinion.

The machine may be inclosed in any suitable casing 1, within which is located a main frame comprising upright plates 2, which rise from a bottom plate 3. The adding mechanism is controlled by ten n umeral-keys 1, which, as shown in Fig. l, are arranged staggered fashion in two rows and are marked with the numerals from l to 9 and the Zero. As shown in Figs. 1, 12, and 13, the keys 4 are mounted on stems which are pivoted to arms 5, which project from a series of rock shafts 5, Fig. 5, which extend in a front to back direction. These rock-shafts are journaled at their forward ends in one of the upright plates of the main frame and at their rear ends in a frame-plate 42, Fig. 5, which extends across the machine from the righthand frame-plate 2 to a vertical partitionplate 2, Fig. 1. 'lherock-shafts are held in normal position by springs 6, coiled about said rock-shafts and pressing at one end against the arms 5and at the other end against the base-plate 3. As shown in Fig. 5, each of the rock-shafts except those connected to the nine and zero keys has fixed thereon three arms '7, 8, and 9, and all of these arms are of course rocked whenever a key is depressed. The arms 7 are shown in front elevation in Fig. 2, by reference to which it will be seen that each of said arms has the form of a segment, the end of which is concentric with the shaft 5 and which is formed on one of its edges with a cam portion which cooperates with an antifriction roller 10. There are eight of these antifrietion-rollers, and all of them are mounted on a bar 14, which is supported at its ends by bell-cranks 12 and 13, which are pivoted to the partition 42, the upwardly-extending arms of which are connected by a link 11. Said link 11, bell-crank levers 12 and 13, and the bar 14 constitute the parallel-motion linkage. The construction is such that when any of the first eight rock-shafts 5 is operated the bar 14 will be cammed up until the roller 10 rides on the concentric portion of the segment 7, thus rocking the bell-crank levers 12 and 13. Thesegments7areofdifferentradii that connected to the 1 key having the longest radius and that connected to the 8 key having the shortest radius, so that the parallel motion linkage is moved difierent distances by the different segments, the segment which is operated by the 1 key moving said linkage the greatest distance. The lever 13 has formed integral therewith a segmental rack 13, which meshes with a pinion 15, which, as shown in Fig. 5, is fixed on a sleeve 16, which is journaled on a shaft 32. As shown in Fig. 5, the sleeve 16 extends a short distance toward the front of the machine and has on its forward end a disk 17, which, as shown in Fig. 15, has projecting from it peripheral ears 17 in which is pivoted a radially-extendinglever 18, the outer end 18 of which, Fig. 1, is formed in the shape of a yoke or pawl. The construction is such that when any of the first eight numeral-keys is depressed the arm 18 will be rotated about the shaft 32 a distance appropriate to that particular key.

The arm 18 normally stands, as shown in Fig. 1, with its end 18 just back of a toothed wheel 31, which in the present instance has eighty-four teeth and is fixed on the shaft 32. This shaft passes loosely through the partition 42 and is journaled at its rear end in a partition 41, which is parallel to the partition 42, and said shaft is journaled at its forward end in a bracket 83, Fig. 5, which rises from the base-plate 3. Between the

partitions

41 and 42 the shaft 32 has fixed thereon a pinion 33, Fig. 1, which meshes with a gear-wheel 34, which is fixed on a shaft 39, which is journaled in the

partitions

41 and 42. To the shaft 39 is fixed the inner end of a coiled spring 35, the outer end of which is fixed to a post 40, which is fixed in the

partitions

41 and 42. A ratchet-wheel is fixed on the shaft 39 and is engaged by a pawl 37, which is pivoted to the gear-wheel 34. The spring 35 may be wound by turning a winged head 38, which is fixed on the shaft 39., the pawl 37 playing idly on the ratchet-wheel 36 in this operation. Most of the operations of my machine are performed by the power of the spring 35 acting through the shaft 32, and the rotatlon of tlns shaft under the impulse of this spring is controlled by an escapement mechanism, of which the toothed wheel 31 and the toothed lever 18 are parts. The toothed wheel 31 is, in effect, an escapenient-wheel, and the arm 18 is, in effect, a loose dog of an escapement mechanism, the fixed dog of which consists of a tooth 23, which normally engages one of the teeth of the wheel 31, as shown in Fig. 1. The tooth 23 is fixed on a vertical rock-shaft 24, Figs. 1 and 15, which is journaled at its lower end in the base-plate 3 and at its upper end. in a bracket 26, extending forward from the partition 42. The shaft 24 is rocked to move the tooth 23 toward the front of the machine and out of engagement with the wheel 31 by the arms 8, to which reference has been made above. is one of these arms 8 on each of the rockshafts 5, except the one connected with the Zero-key. As shown in Figs. 5, 14, and 15, the arms 8 stand in position to engage pins 30, which project toward the front of the ma chine from a bar 28, which is pivotally mounted at its ends on links 29, which are pivoted to brackets 29*, which are secured to the baseplate 3. The bar 27 is drawn toward the lefthand side of the machine by a spring 28, which is secured at one end to said bar and at the other end to the partition 2. As shown in Fig. 15, the bar 28 has an car 27, in which is pivoted an arm 25, extending from the rock-shaft 24. The construction is such that when any of the numeral-keys except the zero-key is depressed the arm 28 is moved toward the right and the tooth 23 is moved out of engagement with the wheel 31.

1 have provided means for moving the toothed end 18 of the arm 18 into engagement with a tooth of the wheel 31 when the tooth 23 is moved out of engagement with said wheel. As shown in Fig. 1, the tooth 23 is forked, and a pin 22, depending from the forked portion of said tooth, plays in a slot in the end of a lever 20, which is mounted on a rock-shaft 21, which is pivoted at its lower end in the base-plate 3 and at its upper end in a bracket 21*, Fig. 15. The lever 20 has a forked arm the ends of which rest in a peripheral groove in a sleeve 19, Fig. 5, which is loosely mounted on the sleeve 16. The construction is such that when the shaft 24 is rocked by the depression of a key the lever 20 is rocked and the sleeve 19 is moved toward the back of the machine. The inner end of the lever 18 is forked to stride the sleeve 19, and the arms of this forked end of the lever have slots, as shown in Fig. 1, into which pins 19 project from the sleeve 19. The construction is such that when the sleeve 19 is moved toward the back of the machine by the lever 20 the inner end of the lever 18 is also moved toward the back of the machine, and the outer end of said lever is moved toward the front of the machine into the space between two of the teeth of the wheel 31.

There By reference to Fig. 2 it will be seen that the eammed portions of the arm 7 raise the bar 14 and turn the sleeve 16 and the arm 18, which is fixed thereto in the first part of the stroke of a key, and the arm 18 is thus positioned before the tooth 23 has moved out of engagement with the wheel 31 and before the tooth on the lever 18 has been moved between two of the teeth of the wheel 31. The lever 18 normally stands in the position shown in Fig. 15, so that if the 9 key, which is not provided with an arm 7, be depressed the tooth 18 will engage the ninth tooth of the wheel 31 above the tooth 23 and the wheel 31 will be free to turn through nine spaces. If the 1 key be depressed, the arms 7 of that key will move the arm 18 through eight spaces, leaving it free to be moved by the driving-spring 35 through only one space after the wheel 31 has been released. It will thus be seen that the arm 18 makes an excursion of nine spaces at each operation of a numeral-key, and in case any other key than the 9 key is operated a part of this excursion is made free of the wheel 31 under the impulse of the key, and the remainder of the excursion is made while the arm 18 is locked to the wheel 31 and is made under the impulse of the driving-spring. It will thus be perceived that when any numeral -key is depressed the wheel 31 and shaft 32 are turned by the driving-spring through a distance appropriate to the numerical value of the key depressed. I

At its forward end the shaft 32 has fixed thereon a crown-gear 43, which meshes with a pinion 44, which is fixed on a shaft 46, which extends in a direction transversely of the machine. The shaft46 is journaled at its end in the right-hand end plate 2 of the machine, and it is journaled near the pinion 44 in a bracket 45, Fig. 1, which rises from the baseplate 3. As shown in Figs. 1 and 4, the portion of the shaft 46 between the bracket 45 and the end plate 2 is squared, as indicated at 46, and on this squared portion of the shaft is loosely mounted the hub 47, Fig. 4, of a gear-

wheel

47, 1, so that said gear-wheel is free to be slid along the shaft, but is constrained to turn with the shaft. The registerwheels are mounted just above the gear-wheel 47, and each of said register-wheels has a gearwheel with which the gear-wheel47 is adapted to mesh, and the said gear-wheel 47 is stepped along so as to mesh with first oneand then another of the register-wheels. For this reason in some of the claims I have referred to the gear-wheel 47 as an adding-wheel,this being the wheel that turns the register-wheels in the operation of addition. The gear-wheel 47 is moved from one to another of the register-wheels by the arms 9, which are mounted on the rock-shafts 5 and to which reference has been made above. Each of the ten rockshafts is provided with one of these arms 9,

as shown in Fig. 3, so that the adding-wheel is moved by anyone of said keys. As shown in Figs. 1, 3*, and 4, the frame 48 has two arms which straddle the wheel 47 and which are formed with circular eyes in which the hub 47 of the wheel 47 is returned. As shown in Fig. 1, the retaining-pawl 49 is pivoted to the frame 48 and engages the teeth of the wheel 47, and a pointer 50 (shown also in Fig. 11) projects from this frame and indicates to the operator which register-wheel is engaged by the addingwheel. As shown in Fig. 3, the frame 48 is connected by a bar 56 with a collar 56, which is also slidably mounted on the rod 51. As shown in Figs. 3 and 3, two

pawls

53 and 54 are pivoted to the frame 48 at 53. The pawl 54 is a retaining-pawl and engages the teeth of a stationary rack-bar 70. The pawl 53 is a feed-pawl and is adapted to engage the teeth of a movable rack-bar 69, which is connected with the rack-bar by a pin-and-slot connection 72, Fig. 3, and which is normally pressed toward the left by a spring 73, which engages the end of said rackbar. The rack-bar 69 has a seriesof pins 71 projecting therefrom into the path of the several arms 9. The construction is such that when any key is depressed the arm 9 connected with that key moves the rack-bar 69 toward the right against the spring 73, with the result that the feed-pawl 53 engages the next tooth of the rack-bar. WV hen the key is released, the spring 73 restores the rack-bar 69 to normal position, moving with it the pawl 53 and the frame 48 and the parts connected therewith, and the retaining-pawl 54 drops into engagement with the next-succeeding tooth of the stationary rack-bar 70. The frame 48 and adding-wheel 47 are thus fed toward the left-hand side of the machine. The frame and the parts connected therewith are restored to initial position, in which the wheel 47 is engaged with the register wheel of lowest denomination by a spring-drum 78, Fig. 4, having a cord 79 wound about the periphery thereof. The cord 79 runs over the pulley 80, mounted in a bracket 81, and is connected at its end to the frame 48. It will of course be understood that the spring 73 is stronger than the spring coiled within the drum '78.

I have provided means whereby upon the depression of a special key the frame 48 is released and permitted to return to its initial or units position under the impulse of the springdrum 78 and also means whereby upon the depression of another special key the said frame may be moved toward initial position step by step. As shown in Fig. 3, the

pawls

53 and 54 extend beyond their pivot 53 and the backwardly-extending portions of said pawls are enlarged, as shown in said Fig. 3. An arm 52, Figs. 3 and 3, is pivoted to the frame 48 and lies over the extended and enlarged portions of the pawls, so that if said arm be depressed the pawls will be simultaneously lifted out of engagement with the rackbars. The arm 52 lies beneath two nested yoke-frames 74: and 75, so that if either of these frames be depressed the arm 52 will be depressed and the pawls will be released from the rack-bars. The yoke-frame 7 1 has mounted thereon a key 745 and has teeth 74, Fig. 1, Which when said yoke-frame is depressed are moved into the path of a pin 55, which projects upward from the frame 18. The teeth 74 are spaced apart a distance equal to the distance from one register-wheel to the next, so that when the yoke-frame 7 1 is depressed by operating the key 7 1 the

pawls

53 and 54 are lifted out of engagement with their rackbars, and the frame is thus released from said rack-bars and moves toward the right, but said frame is arrested after moving one units distance by the engagement of the pin 55 with one of the teeth 7 1.

The register-wheels and their transfer devices are mounted on a shaft or rod 87. The rod 87 is rigidly mounted in the forwardlyextcnding arms of a rock-frame 84. One of these arms is pivoted to the side plate 2 at 26", Fig. 16, and the other, as shown in Fig. 2, is pivoted to a bracket 26, projecting from the frame plate or partition 12. The arms of the frame 84 extend upwardly from the rod 87 and are connected together by a plate 85, Figs. 1 and 11, having a series of perforations through which the register-wheels may be read. The pointer 50, which has been hereinbefore described, is secured to the frame or carriage 48 and stands between the plate 85 and an opening in the framework, which may be covered by a strip of glass or other transparent material 86, Fig. 4. The construction of the frame 81 is such that said frame may stand in the position shown in Fig. 4, in which the adding-wheel 47 is in engagement with one of the ratchet-wheels, or said frame may be rocked about its pivots to the position shown in Figs. 16 and 17, in which the register-wheels are out of engagement with the adding-wheel.

The shaft 87 is held against turning in the frame 84 by a spline 84*. The construction of the register-wheels will be best understood by reference to Fig. 1 and Figs. 20 to 28. The shaft 87 is a fixed shaft or rod, and the register-Wheels 88 are journaled on said rod. As best shown in Fig. 21, each of the registerwheels comprises a gear-w heel having a drum secured to one face thereof, said drum being of less diameter than the gear-wheel and having the numerals from O to 9 marked on its periphery, as shown in Fig. 1. The registerwheel is rigidly mounted on a hub 123, which projects into the drum portion, as shown in Fig. 21, and on the outside of the web portion of the wheel is formed apinion 124C. The hub 123 is loosely mounted on the rod 87. Each of the register-wheels has a series of ten teeth 89, Figs. 1 and 20, projecting therefrom into the path of a retaining-pawl 90, Fig. 4t. These retaining-pawls are pivoted on a rod 92, which is journaled in the frame 84 and which has a longitudinal wing 93, which projects into a sector-shaped opening 91,Fig. 16, in the dogs 90. Each of the dogs 90 has an upwardlyprojecting arm 98, by which said dog may he rocked out of engagement with the tooth 89. The construction of the parts is such that the sector-shaped opening 91 and the wing 93 limit this motion of the dog on the rod 92, and all of the dogs may be simultaneouslyshifted out of engagement with the register-wheels by rocking the rod 92 toward the back of the machine.

As best shown in Fig. 27, a series of disks 112 are mounted on the rod 87, one of said disks being mounted within the drum of each of the register-wheels. Each of the disks 112 has a hub 112, which is rigidlyconnected with the rod 87 by a spline 113, so that the disk 112 is rigidly mounted on the red. A pawl or stop-piece 114 (best shown in Fig. 28) is pivoted to the disk 112, and one end of said pawl is pressed against a stop-pin 115 by a spring 116, which is secured at one end to the disk 112 and at the other end presses against the stop-piece. A sleeve 120, Fig. 23, is loosely mounted on the portion of the hub 123 which projects within the drum of the register-wheel.

This sleeve has projecting therefrom a disklike portion 119, a portion of which is formed into a tooth which projects into the path of the stop-piece 114:, Figs. 25 and 26. A coiled spring 121 is secured at its inner end to the sleeve and at its outer end to the drum of the register-wheel, as shown in Fig. 25. The construction is such that the spring 121 presses one of the teeth 89 against the end of thedog 90 and also presses the toothed portion of the flange 119 into engagement with the stoppiece 114;. The disk112 has a circular opening which is bridged by a bracket 117, and a pinion 118, lying in said opening, is journaled on a shouldered and headed screw which is threaded into said bracket. As shown in Fig. 27, the portion of the pinion 118 as it extends to the left of the disk 112 meshes with the pinion 12 1 of the next register-wheel to the left and the portion of the pinion 118 which lies to the right of the disk 112 stands in the path of a pin 122, which projects from the flange 119 of the sleeve 120. The construction is such that if the stop-piece 11a be moved to the position shown in Fig. 26 the toothed flange 119, escaping past the said stop-piece, will turn under the impulse of the spring121, the pin 122 will turn the pinion 119 through the space, and one tooth of this pinion will turn the pinion 124 of the next register-wheel through the space of one tooth. The step 111- is moved for this purpose by a cammed tooth 125, projecting from the inner surface of the drum of the register-wheel. The construction is such that once in every complete rotation of a register-wheel the tooth 125 of that register-wheel will release the flanged disk 119 from the stop-piece 114 and the rotation of said flange will move the next succeeding register-wheel to the space of one tooth. The parts are so designed that the tooth 125 operates the stop-piece 111 during the time that the register-wheel is turning from its ninth to its zero position. The stoppiece 114 immediately snaps back to normal position under the impulse of its spring 116 and arrests the toothed flange 119, so that said flange makes only one revolution. It will be noted that this operation takes place once for each complete rotation of a register wheel, so that the spring 121 is wound up to the extent of one turn by the rotation of the register-wheel and is then unwound to the same extent by the rotation of the flanged disk. It will also be noted that if at any time one of the pawls be raised by manipulating the arm 90 of such dog the spring 121 of the corresponding register-wheel will rotate said register-wheel in the opposite direction from that in which the wheel turns in adding and said wheel will be arrested at its zero position by the engagement of the abrupt face of the tooth 125 with the stop-piece 114. This position of the parts is indicated in Fig. It will also be perceived that if the frame 81 be rocked to the position shown in Fig. 16, in which none of the register-wheels is in engagement with the driving-wheel 47, and if then all of the dogs 90 be lifted out of engagement with the tooth 89 by rocking the rod 92, as shown in Fig. 17, then all of the registerwheels will be released and will immediately return to Zero position. In case an error has been made by striking the wrong numeralkey the wheel affected by such error may be returned to zero position by manipulating the appropriate arm 90, the frame 48 may he stepped back into engagement with said wheel by striking the key 74, and the mistake may then be corrected by striking the appropriate numeral-key.

,l have provided means for automatically printing the numbers corresponding to the operated keys, and when a column of iigures has been added the parts may be moved to the position shown in Fig. 16, in which the register-wheels are disconnected from the driving-wheel 17, and the total indicated on the register-wheels may then be written by striking the proper keys withoutaffectingthe register. The parts may then be set to zero by rocking the rod 93, as indicated in Fig. 17.

The frame 8 1 is rocked to the position shown in Fig. 16 and the rod 93 is rocked to the position shown in Fig. 17 by means which will now be described. As shown in Fig. 4, one of the end pieces of the frame 84 has a down\vardly-projecting arm, to which is pivoted the rear end of a link 97, the forward end of which is pivoted to an car which projects from a sliding plate 100, which rests on the base-plate 3 of the machine. The forward end of the plate 100 has an upturned lip which is normally engaged by the end of an operating pawl or dog 108, as shown in Fig. 1. The dog 108 is pivoted to arm 109, depending from a rock-shaft110, which has an upwardly-extending arm 110, to which is connected a key 111. If this key be depressed, the arm 109 will be moved toward the front of the machine and the dog 108 will draw the sliding plate 100 forward until the end of said plate engages a stop-bracket 106. A retaining-pawl 107 is pivoted on a bracket 107, Fig. 19, in position to drop behind the upwardly-projecting lip of the plate 100 when said plate is in its forward position and retain the plate in such position, retaining the frame 84 in its elevated position. This position of the parts is shown in Fig. 16.

I have provided means whereby the rod 93 is rocked to set the wheels to zero byasecond operation of the key 111. To this end said rod has fixed thereto a rearwardly-extending arm 94, which is connected by a link 95 with a bell-crank lever 96, which is pivoted to the downwardly-extending arm of the frame 84. The hell-crank 96 has a downwardly-extending arm which is connected by a spring 99 with the downwardly-extending arm of the frame 8 1. This spring tends to hold the rod 93 in its normal position. The downwardlyextending arm of the bell-crank 96 has pivoted thereto a link 98, the forward end of which is pivoted to an car which rises from a plate 101, which rests on the plate 100 and is free to slide on said plate. The position of this ear is best shown in Fig. 19. \Vhen the plate 100 is drawn by the dog 108 to the position shown in Fig. 16, the bell-crank 96, being mounted on the frame 84, is also drawn forward and the link 98 pushes the plate 101 forward with the plate 100 to the position shown in Fig. 16. The plate 101 has its forward end turned up to form a lip or flange. A plate 102 is slidably mounted on the top of the plate 101, to which it is connected by a pinand-slot connection 102. The upper surface of the plate 102 and the upper edges of the flanged ends of the platcs101 and 100 all stand on the same level. The plate 102 hasalug103 projecting therefrom, and said lug is engaged by the plate-spring 1041, which is supported by pins 105, projecting from the frai'neiilate 2. \Vhen the parts are in the normal position shown in 4 and 19, the spring 104 has its end in front of the lug 103, and the pin 102, which projects upward from the plate 101, stands at the rear end of the slot in the plate 102. hen theplate101 is moved toward the front of the machine by the first depression of the key 111, the plate 102 is held by the spring 104, and the pin 102 therefore moves to the front of the slot in said plate 102. hen the key 111 is released after the first depression thereof, the dog 108 moves back and engages the flanged end of the plate 101. When it is desired to set the wheels to zero, the key 111 is again depressed, with the result that the plate 101 is moved forward to the position shown in Fig. 17. As the pin 102 then stands at the front end of the slot and the plate 102, said plate 102 is forced to move forward with the plate 101 and the spring 104 snaps behind the lug 103. WVhen the flanged end of the plate 101 is moved to the position shown in Fig. 17, said flanged end cams the retainingpawl 107 up out of engagement with the flanged end of the plate 100, so that when the key 11 is released the plate 100 is free to move toward the back of the machine. drawn back by the weight of the frame 84 and the registering mechanism mounted therein, and the plate 101 is drawn still farther back by the spring 99. In this return motion of the parts the spring 104, lying behind the lug 103, holds the plate 102 in its forward position until the forward end of said plate is engaged by the flanged end of the plate 101. In this operation the plate 102 cams the dog 108 out of engagement with the flanged end of the plate 101. hen the pin 102 reaches the rear end of the slot in the plate 102, said plateis positively forced toward the back of-the machine and the spring 104 rides over the cam 103 and the end of said spring drops to its normal position in front of said lugs. The parts are then in their normal position. (Shown in Fig. 4.)

Most of the printing mechanism is located in the space between the partition 2 and the left-hand end plate2 of the main frame. As shown in Fig. 3, a rod 51 extends through an opening in the partition 2, which opening is considerably larger than the diameter of the rod. On this rod is suitably mounted a frame 60, Figs. 1, 3, and 6, which is forked to embrace a type-wheel 61, which is adapted to slide longitudinally of the shaft 62. The portion of each that lies within the space above referred to to the left of the partition 2 is squared, as shown in Fig. 6. This shaft stands end to end of the shaft 46 and at its righthand end is formed with one member of a clutch 63, the other member of which is adapted to slide on the shaft46. This slidable clutch member is formed with a peripheral groove in which run the ends of a forked arm 64, Figs. 1 and 3. The arm 64 projects upward from a rock-shaft 64, which is journaled in lugs or brackets 68, which rise from the base-plate 3. A spring coiled aboutthis rock-shaft tends to draw the same in a direction to disengage the clutch members. A curved arm 65, fixed to the rock-shaft 64*,lies overa roller 66,Fig. 3,which is mounted on a bracket 67, which is secured to the rack-bar 69. The construction is such left, thus moving the slidable clutch member into engagement with the coi'i 'ierating clutch member and coupling the shaft 62 to the shaft 46. The two shafts are then coupled together, when the shaft 46 is turned by the spring 35 a distance corresponding to the numerical value of the key depressed, and the shaft 62 turns with the shaft 46 and turns the type-wheel 61 to bring the appropriate type to the printing position. \Vhen the key is released, the rack-bar 69 returns to its normal position, the clutch members are disengaged, and the shaft 62 is returned to normal position by a spring 62", Fig. 1, which is coiled about said shaft and which is connected at one end to said shaft and at the other end to a stationary part of the machine.

In order to move the wheel 61 from one denominational position to another, an arm 59, Figs. 1 and 5, is secured to the frame and projects through the partition 2 some distance into the other compartments of the machine. At its right-hand end the bar 59 has a vertical stud fixed thereto, and on this stud is journaled a pinion 58, the teeth of which mesh with rack-teeth formed on the rear edge of the bar 56, which, as has been above explained, is connected with the frame 4.8. A stationary rack-bar 57 is secured at one end to the partition 2 and at the other end to the bracket 45, and this rack-bar also meshes with the pinion 58 on the side thereof opposite the bar 56. The construction is such that as the frame 48 moves across the machine the pinion 58 is rolled along the rack-bar 57, and said pinion and the bar 59 and frame 60, connected therewith, move in the samedirection as the frame 48, but through only half the distance. The printing-column is thus one-half as wide as the register.

The paper on which the members are printed consists of a long strip wound on a drum 165, Figs. 1 and 6, which is journaled on a rod 166, which passes through the end plate 2 and. the casing 1 and is threaded into the par tition 2. On the outside of the machine this red or screw is formed with a head, by which itmay be unscrewed and withdrawn, so that the roll may be removed from the machine for the purpose of refilling it with paper or of substituting another roll therefor. As indicated by the dotted line in Fig. 6, the paper is led from the rail 165 part way around a platen 146, the shaft 156 of which is journaled in the arms of a frame 152. This frame comprises two arms which extend in a front and back direction and which are journaled on the rod 166 outside of the paper-roll. Behind this' paper-roll these arms are connected by a yoke-piece, to which is connected one end of a spring 167, the other end of which is connected to the base-plate 3. This spring tends to hold the platen-frame in the position shown in Fig. 6, with the platen lifted above the printing-wheel 61. In front of the paper- O of a numeral-key.

'mal position.

spool the arms of the frame 152 are rigidly connected to each other by a cross-bar 153. The platen may be cylindrical; but I prefer to form it with polygonal cross-sections, as shown in Fig. 6.

The printing is effected by moving the platen down against the type-wheel, and I have provided means whereby when the platen returns to its normal position the platen is turned to such a position that the printing is visible to the operator. Two pressure-

rollers

147 and 149 are journaled in a frame 150, which frame consists of a strip of sheet metal bent into the form best shown in Fig. 7,which shows the parts as seen from the front of the machine when said parts are in normal position. The strip 150 has a portion thereof which is parallel to the platen, and the roller 149 lies between the platen and this parallel portion. The strip is then bent up between the ends of the platen and the arms 152 to the point at which the roller 147 is journaled. Each end of the strip bends back from this point outside of the arms 152, so that each of said arms lies between two folds of the strip, as indicated in Fig. 7. The outermost fold of the strip 150 at each end is formed with two rearwardly-projecting lingers 150, Fig. 8, between which project pins 151. One of these pins is fixed to the partition 2 and the other to a. bracket 157, which extends upward from the end plate 2 of the main frame. The construction is such that when the platenframe is depressed the pins 151, engaging one of the arms 150. turns the frame 150 through a quarter-revolution, and the platen is turned with said frame by the engagement of the pressure-roller therewith. It will be perceived that the face of the platen which strikes the type-wheel will be that face which in its normal position is turned toward the front of the machine. hen the platen-frame rises, the pins 151 turn the frame 150 back to nor- The shafts of the

pressurerollers

147 and 149 extend through elongated slots in the frame 150, as shown in Fig. 8, and these rollers are pressed toward the platen by springs 158, each of which engages the shafts of both of the rollers. As shown in Fig. 6, a guard-plate 148 lies back of the pressureroller 147, and the rear edge of this guardplate may be used to tear off a portion of a strip of paper. After passing beneath the roller 147 the paper is guided by the curved surface of a portion 1 of the casing, which portion is hinged at 168, Fig. 6, so that it may be raised to give access to the paper-roller.

The platen is automatically thrown down against the type-wheel upon each actuation In the case of any of the keys except the zero-key, theplaten is thrown down by the power of the spring A yokeframe 154 has its arms pivoted to the arms 152, and the paper in passing from the spool to the platen passes between these arms. The

yoke-bar of this yoke-frame is connected by a link 155, Fig. 6, with a lever 82, which, as shown in Figs. 1 and 15, extends through the partition 2 and is pivoted to a bracket 82", which rises from the base-plate 3. The lever 82 has projecting therefrom an arm 82, which lies over the tooth 23 of the escapement mechanism and in position to be struck by the arm 18 when said escapement mechanism is operated. The arm 18 striking the arm 82 depresses the lever 82 and draws the platen-frame downward, causing the platen to strike the type-wheel in the manner which has been described. \Vhen the key is released and the arm 18 returns to normal position, the platen-frame returns to normal position under the impulse of the spring 167. As the zerokey does not operate the escapement mechanism, this key is independently connected with the lever 82. As shown in Figs. 1 and 15, the shaft 5, connected with the zero-key,has an arm 170 projectingtherefrom, which is connected with the lever 82 by a link 171, so that when the zero-key is depressed the lever 82 is depressed and the platen operated.

The shaft 156 of the platen 146 has a tinger-wheel 156, Fig. 7, formed on the outer end thereof,whereby the platen maybe turned by hand to feed the paper. 1 have also provided means whereby the paper is fed a linespace distance upon each operation of the key 75, by which the frame 48 is returned to units position to begin the addition and printing of a new number. As shown in Fig. 1, the yoke-frame 75, which is operated by the key 75", has an arm 146 extending therefrom toward the rear of the machine, and, as shown in Fig. 10, the free end of this arm extends vertically and forms a vertically disposed rack-bar 164. Two plates 162, lying side by side, but spaced apart, are loosely mounted on a rod 163, which is secured to two brackets 163, which project from the partition 2. A series of pins which connect the plates 162 constitute the teeth of a segmental rack which meshes withthe rack-bar164. The construction is such that when the key 75 is depressed the plates 162 are turned about the rod 163 as a pivot. Between these plates is pivoted a dog 160, the tail of which is pressed against a stop-pin 160 by a spring 161. The dog 160 normally stands in the position shown in Fig. but when the key 75 is depressed this dog plays in a slot formed for the purpose in the partition 2 and engages ratchet-teeth 159, formed on the end of the platen 146. hen the platen is in its non-printing or normal position, the ratchet-wheel 159 stands in position to be operated by the pawl 160, which thus imparts a line-space feed to the platen.

The ink-ribbon is coiled on two

ribbonspools

134 and 135, Figs. 1 and 6, which are journaled on a vertical stud 136, which rises from the base-plate 3 in front of the typewheel. The ribbon is led from the spool 134: over a vertical guide-roller 138, thence to a horizontal guide-roller 1 10, thence to another horizontal guide-roller 1&2, thence to a guide 144, Fig. l, thence between the platen and the type-wheel to a guide 145, Fig. 6, thence to a guide-roller 1&3, thence to another horizontal guide-roller 1&1, thence to a vertical guide-roller 139 and backto the spool 135. In order to feed the ink-ribbon,theupper flange of the spool 135 and the lower flange of the spool 134 are formed with ratchet-teeth, as shown in Fig. 1, and these ratchet-teeth are adapted to be engaged by pawls 130 and 131, mounted on a vertical rod or shaft 132, which is pivotally mounted in a frame 129. The frame 129 comprises a hub which is journaled on the stud 136 below the spool 135, Fig. 1, and an arm which extends from said hub beneath said spool, thence upward to a point above the lower flange of the spool 13%, and thence horizontally, as shown in Fig. 6. The rod 132 is loosely mounted in the upper and lower horizontal parts of the frame 129. This frame is adapted to be moved back and forth about its pivot by alink 128, Figs. 1 and 6, which is pivoted to an arm 127 which extends downward from a rock-shaft 127, which is journaled at one end in a bracket projecting from the partition 2 and at the other end in a bracket which rises from the base-plate 3. An arm 126, projecting from the rock-shaft 127, as shown in Fig. 1, is connected by a link with the yoke-frame 75, as shown in Fig. 6. The construction is such that when the yokeframe 75 is depressed by the operation of the key 75 the frame 129 will be moved about its pivot. The rod 132 extends through a slot in a portion l Fig. 6, of the casing 1. The portion 1 of the casing is hinged to the stationary parts of the casing at 169, so that said hinged parts may be lifted to give access to the ribbon-spools. At its upper end the rod 132 has a milled head 132, by which said rod may be slightly turned. \Vhen the parts stand in the position shown in Fig. 1, the pawl 131 engages the ratchet-teeth of the spool 134;

but if the rod 132 be turned the pawl 130 will engage the ratchet-teeth of the spool 135 and the direction of feed of the ribbon will be reversed. The rod 132 has projecting therefrom a pin 137, Fig. l, which is engaged by a fiat spring 133 in such manner that said spring tends to hold the rod in either of the two positions to which it may be turned.

hat I claim as new, and desire to secure by Letters Patent, is-

1. In an addingmachine, the combination of finger-keys, a rotary wheel, selecting means controlled by said finger-keys for engaging said wheel at any one of a plurality of places, and means for automatically releasing and stopping said wheel.

2. An adding-machine consisting of the combination of a series of keys, shafts from which said keys extend, a series of circular segmental disks upon said shafts, an escapementwheel 31, devices controlled by said disks for selecting a predetermined number of teeth on said wheel, a motor-spring adapted to furnish power for operating said devices, and to be liberated by said keys, a series of numeralwheels, each having a numerical carrying device, and connected up with pawls 90 and means for rotating said wheels to zero, a wheel 17 adapted to slide and engage with any one of the numeral-wheels, and means for recording the numbers which are added together, said wheel t7 being connected up with said escapement-wheel.

3. In an adding-machine, the combination of a series of finger-keys, shafts from which said keys extend, a series of numeral-wlreels, a carrying device for each of said wheels and operating in conjunction therewith to carry the tens automatically, a series of partitionframes 112, pinions and stops supported thereon, means for preventing the rotations of said partitions, pinions 124: secured to the respective hubs of the numeral-wheels, another se ries of pinions 118 meshing into the firstnamed pinions, retractile springs 121 inside of said mnneral-whcels, and connected at one end each to said immoral-wheels, and disks 119 rotary on the hubs of said numeral-wheels, and adapted to release the power of said springs.

1. In an :ulding-machine, the combination of a shaft -16, a clutch for the same consisting of the parts 63 and 64, means for operating the clutch and consisting of the yoke 6& for opening and closing said clutch and a bent arm 65 connected up with said yoke, a spring for holding the clutch part 63 in its normal position, the movements of said clutch being controlled by said keys, a shaft 62 attached to the other part 6% of said clutch and carrying a laterally-movable type-wheel having type from zero to nine inclusive, a spring serving also to hold said type-wheel with the zero in the normal position while the keys are idle, a pinion 58, and racks 56 and 57 for causing the type-wheel to move laterally through the interletter-spacing, mechanism controlled by the release of the keys for controlling said yoke, and intermediate elements between the keys and said wheel 17 for feeding and turning the same.

5. In an adding-machine, the combination of a series of linger-keys, shafts 5, having operating connection with the keys, and carrying radiating arms 9, a rack 69 adapted to be moved by said arms, a pawl 53 engaged with said rack, a second rack 70 which is stationary and having a pawl 54, bars 74: and 75 for raising said pawls, an adding-wheel, a frame therefor supporting said pawl and adapted to engage respectively with said racks, a coil-spring in a barrel 73 having a cord passing around and attached to the same toact as a flexible connectingrod for said frame, said spring serving to retract the carriage 48 and wheel 47 and said frame being prevented by said pawls from moving back until released by

bars

74 and 75, and a succession of numeral-wheels, having gear-Wheels in the path of said adding-wheel.

6. In an adding-machine, the combination of a series of numeral-keys, numeral-wheels, actuating mechanisms between the abovenamed elements, a roller 66, a bar 69 to which said roller is attached, a lever-arm controlled by said roller, an adding-wheel shaft 46, a type-wheel shaft 62, a clutch 63 governed by said lever-arm, for connecting said shaft 46 to said type-wheel shaft 62, and a motor-spring and devices for furnishing the power when released by said keys.

7. In an adding-machine, the combination of a series of manual keys, numeral-wheels, actuating mechanisms between the abovenamed elements, a type-wheel, a platen 46, a paper-carrying device 165; an ink-ribbon and feeding elements therefor, stationary pins 151 and slotted frame 150 for the platen, and adjuncts for rotating the printingroll ninety degrees, a pawl and mechanism for moving the paper for spacing, and spring, levers, rods, &c., for connecting up the different elements named above.

8. In an adding-machine, the combination of an adding-wheel frame 48 having

pawls

53 and 54, a key 75 connected up to a printingbar 75 for releasing said pawls, an arm projecting from said bar carrying the rack 164 for throwing a pawl 160, a crown ratchetwheel 169 with which said pawl 160 engages, and attached to the printing-roll 146 and serving to space the paper; pawls 130 and 131 for shifting the ink ribbon, and a lever controlled by said bar for throwing the pawls 130 and 131.

9. In an adding-machine, the combination of a support 2, a base-plate 3 upon which said support is mounted, keys4 arranged in rows, stems 4 connected up to said keys, retractile springs for the keys, segments 7 successively of shorter and shorter radii and bearing against rollers 10, a rack-bar carrying said rollers 10, a second rack 11 connected to the first in a parallel condition by given levers 12 and 13 which are steadied by said rack 11, a toothed segment on the lever 13, a pinion 15 engaging with said segment, a shaft 32 which carries the cylinder 16 to which in turn is secured the pinion 15, the cylinder being loose on the shaft 32 and carrying an arm 17, a lever 18 pivoted at the pivot 17 to said arm 17, said lever being forked, a collar 19 straddled by the fork and pivoted loosely thereto by pins 19 passing through elongated holes in the lever 18, whereby a shifting motion of the collar is produced, a hooked end 18 on the lever 18, a ratchet-wheel 81 into whose teeth the hook may engage when the cylinder 19 is shifted, the rollers 10 being adapted through the means of the rack 14, lever 13 and segment 13, to partially rotate the pinion 15, and finally to locate the pawl 18 at aparticular tooth corresponding to the particular key depressed.

10. In an adding-machine, the combination of a series of manual keys, numeral-wheels connected up therewith, a swinging rack 74, a key 74 attached thereto, fork 48, an adding-wheel 47 for the fork and a pin 52 on said fork for engaging the teeth of the rack 74.

11. In an adding and printing machine, the combination of a series of register-wheels; a type-wheel; paper-carrying devices; a motorspring; and means operated by said motorspring for setting said type-wheel to print a given number, adding such number on the register-wheels, and printing such number on the paper.

12. In an adding-machine, the combination of numeral-wheels, a frame supporting the same, a manual-key, connections between said key and said frame, an adding-wheel adapted to engage with said numeral-wheels, said conncctions being adapted to release said adding wheel from the numeral-wheels upon the first operation of said key, and connections independent of the first connections controlled by the same key and connected up with pawls for holding said numeral-wheels in abnormal positions, the independent connections serving to free said numeral-wheels from said pawls upon a second operation of said key, and retractile springs for returning said wheels to the zero-point.

13. In an adding-machine, the combination of a series of keys 4, shafts 5 to which said keys are attached, circular segments 7 of different radii attached to said shafts, a rack 14 carrying rollers 10 which bear respectively upon said segments, bent levers 12 and 13, bars 11 and 14 connected by said levers, a segment 13 of a gear-wheel extending from the lever 13, a pinion 15 engaging with said segment 13, a sleeve 16 carrying said pinion rigidly, and having an arm 17, a shaft 32 for the sleeve, a lever 18 pivoted to the arm 17 one end of which is Y-shaped, a collar 19 con nected by pin 19 to the Y-shaped arm loosely to admit of slight lateral motion of the collar 19, a tooth 18 extending from the lever 18 engaging the ratchet-wheel 31 when the collar 19 is sufiiciently shifted, a motor-spring for furnishing power to the elements when released by said keys, a shaft 46 squared at 46, an adding gear-wheel 47 having a given number of teeth sliding longitudinally on the squared portion but adapted to turn with the shaft 46, a fork 48 between whose tines said wheel 47 may rotate and by which said wheel is carried, a pawl 49 for engaging with said wheel 47, a pointer 50 extending from the fork 48 to a Window 85 for indicating which numeral-wheel is operated by the wheel 47 a red 51 supporting the fork 48, a keyed arm 52 attached to the fork 18, pawls 53 and 5 1 on which rests the outer end of the arm 52, a spring for adding said pawl in the proper position, numerical carrying devices upon the wheels 88, means for returning the numeralwheels to zero, and mechanism for recording the numbers added.

1 1. In an adding-machine, the combination of a shaft 87, numeral-wheels 88 upon said shaft, a disk 112 in each numeral-wheel fixed to said shaft, and fitting freely in the barrel of said numeral-wheels, a pinion 118 located in a cut-out portion of said disk, a stop 11 1 attached to said disk, a stop 125 on the barrel for controlling the stop 114, for releasing the lip of a disk 119 which is attached to a collar 120 which fits over the hub 123 of the numeral-wheel 88, a tooth 122 attached to the disk 119 and collar 120 for engaging with the pinion 118 when the disk 119 rotates, a step 115 fixed to the disk 112, a spring 116 for holding the stop 11 1 against the stop 115, a bracket 117 on the disk 112 to serve as asupport for the pinion 118 which has ten teeth and which is rotary in the opening of the disk 112 and which engages with a similar pinion 12 1 attached to'the hub of the next succeeding numeral-wheel 88, a flat coiled spring 121, one end of which is secured to the collar 120 and the other end to the barrel of the wheel 88 and so placed therein as to be put under tension when the numeral-wheel is turned forward, the pinion 12 1 having also ten teeth and engaging with the gear-wheel 118 of the next succeeding numeral-wheel on the right, and a stop placed in the barrel of the wheel 88 in such a position as to rest against a stop 114C when the zero appears at the window of the plate 85.

15. In an adding-machine, the combination of linger-keys, arms of different lengths controlled by said keys, a movable bar actuated by said arms, a rotary wheel, a source of power for rotating the same, selecting means for engaging said wheel at various points as determined by the finger-key actuated, means for releasing and stopping said wheel, and intermediate mechanism connected up between said bar and said releasing and stopping means.

16. In an adding-machine, the combination of finger-keys, a reciprocating bar, devices connected up with said keys for reciprocating said bar through different distances, a rotary ratchet-wheel tending to rotate, a selector for engaging various teeth of said ratchet-wheel as determined by the key actuated, and means controlled by said bar for releasing and stopping said wheel.

17 In an adding-machine, the combination of a series of numeral-wheels, a spring contained in each of said wheels and which are placed under tension by the rotation of. said wheels, pawls for holding said wheels in different positions against the action of said springs, a linger-key, means operatively connected to said finger-key for liberating said pawls from said wheels, and transfer devices operated by said springs.

18. In an adding-machine, the combination with the ribbon and paper feeding device, of a rotary and laterallymovable typewheel, finger-keys for the adding-machine, means connected up with said keys for imparting lateral movements to said wheel, a rotary shaft adapted to be clutched to and released from said type-wheel, a ratchet-wheel connected up with said shaft and'capable of variable rotary movements in one direction only, a pawl normally holding said ratchet-wheel stationary and'connected up with said keys and adapted to release said wheel, a-motorspring for actuating said wheel, and a device for stopping said ratchet whcel at different degrees and having two motions, the one motion being imparted through the action of the keys and intermediate mechanism,.and the other motion through the same jointly with said pawl.

19; In an adding-machine, the combination of aratchet-wheel; aseries of keys; at key-operated device for engaging said ratchet-wheel at any one of a plurallty ofthe teeth thereof; and a motor for turning said wheel.

20. In an adding-machine, the combination of a series of keys, a series of numeral-wheels, a carrying device on said wheels for carrying the tens, and having springs adapted to be wound up and released by the action of said numeral-Wheels, and a motor-spring for furnishing power to said wheels, and releasable by the action of said keys.

21. In an adding-machine, the combination of a series of keys, lever connections to be 5 operated by the same, an adding-wheel shaft,

a type-wheel shaft, a clutch connecting the adding-wheel shaft and the type-wheel shaft and connected up with said lever connections, means for communicating lateral spacing mo- I I0 tion to both the adding-wheel and the typewheel and consisting of racks and pinions so connected up as to move the type-wheel laterally a less distance than that through which the adding-wheel may move, thereby prop- 5 erly. spacing the printing.

22. In an adding-machine, the combination of manual keys, a radiating arm corresponding to and controlled by each key, an addingwheel frame supporting an adding-wheel, a 120 reciprocating rack operated by any one of said arms in one direction, a spring for returning said rack, a pawl 53'carried by said frame and engaging with said rack, a second stationary rack, a second pawl carried by said I 5 frame and engaging with said rack for retaining said frame in its successive positions, a row of numeral-wheels arranged in the path of said adding-wheel, carrying devices mounted in and governed by said numeral-wheels.

'23. In an adding-machine, the combination of manual keys, a radiating arm corresponding to and controlled by each key, an addingwheel frame supporting an adding-wheel, a reciprocating rack operated by any one of said arms in one direction, a spring for returning said rack, a pawl 53 carried by said frame and engaging with said rack, second stationary rack, a second pawl carried by said frame and engaging with said rack for retaining said frame in its successive positions, a row of numeral-wheels arranged in the path of said adding-Wheel, carrying devices in said numeral-wheels, and governed by said numeral-Wheels, a spring tending to return said frame to the starting-point, and an extra manual key connected up with both of said pawls for releasing said frame.

24. In an adding-machine, the combination of manual keys, an adding-wheel frame supporting an addingwheel, means connected up With said keys and said frame for feeding the latter across said machine, a row of numeralwheels arranged in the path of said addingwheel, carrying devices on said numeral-wheel and connected up with the same, a type-wheel adapted to be intermittently connected up with said adding-wheel, mechanism for throwing the numeral-wheels out of gear with the adding-Wheel, said numeral-wheels being provided on their peripheries with numerals from Zero to nine inclusive, and connecting elements between said keys and said type-wheel active independently of said numeral-wheels and their carrying devices.

25. In an adding-machine, the combination of manual keys, a motor-spring, a platen upon which is supported paper to be printed upon and adapted to rotate, mechanism connected up with the keys for rotating the platen for interline-s pacing, and mechanism independent of the first mechanism connected up with said spring and with said keys, for turning said platen to several interline-spaces for making the printed matter visible.

26. In an adding-machine, the combination of manual keys, a motor-spring, a platen upon which is supported paper to be printed upon and adapted to rotate reciprocally through several interline-spaces, and mechanism conof a series of keys, a type-wheel having one part of a clutch, a shaft having the other part, intermediate mechanism between said keys and said clutch for clutching said wheel, and a key-controlled power device for operating said shaft.

29. In an adding-machine, the combination with the keys, of a series of register-wheels; key-controlled means for turning said registor-wheels in accordance with numbers, a series of springs which are adapted to transfer from Wheels of lower denomination to those of higher denomination in the operation of addition and also to restore the register-wheels to zero.

30. In an adding-machine, the combination of a register-Wheel; a movable member having a uniform excursion at each operation thereof; a series of keys and connections whereby said member is moved by any of said keys through a part of its excursion depending on the numerical value of said key; a motor for moving said member through the remainder of its excursion; and means for connecting said member to said register-wheel during that part of its excursion through which it is driven by said motor.

In testimony whereof I have hereunto subscribed my name this 1st day of February, 1901.

MARQUIS HAR'IWELL LOCKWOOD. [1,. Si]

Witnesses:

E. C. COOK, E. T. ALLEN.