US2620915A - Selective word printing device - Google Patents

Description

Dec. 9, T1952 A. H. SHARPE sELEcTzvE woRD PRINTING DEVICE 7 Sheets-Sheet l Filed June 25, 1948 E Jllllllllllllllllllllll A E l mw l, W

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ATTORNEY Dec. 9, 1952 A. H. SHARPE 2,620,915

SELECTIVE WORD PRINTING DEVICE Filed June 23, 1948 7 Sheets-Sheet 5 www@ INVENToR. AQTHUQ H. JHAQPE TT ORNE Y Dec. 9, E952 A. H. sHARPE 2,620,915'l SELECTIVE WORD PRINTING DEVICE Filed June 23, 1948 7 sheets-sheet 4 IN V EN TOR. A er# U12 H. J'HA @PE BY NM? TTOENE Y Dec. 9, 1952 A. H. SHARPE SELECTIVE WORD PRINTING DEVICE 7 Sheets-:Sheet 5 Filed June 25. 1948 *Q INVENToR.

TTOQNE Y '7 Sheets-Sheet 6 A.. H. SHARPE SELECTIVE WORD PRINTING DEVICE INVENTOR.

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Dec. 9, 1952 Filed June 23, 1948 Dec. 9, i952 A. HtARPE 2,620,915

SELECTIVE WORD PRINTING DEVICE Filed June 25, 1948 7 Sheets-Sheet '7 M 36215 coLuMmcoLuMNz JAN IN VEN TOR. Ien/UQ H. JMA/epi F j lin ATTORNEY BY am MM2;-

Patented Dec. 9, 1952 UNITED STATES Arthur H. Sharpe, West Hartford, Conn., assigner to Underwood Corporation, New York, N. Y., a

corporation of Delaware Application June Z3, 1948, Serial No. 34,763

25 Claims. l

This invention relates to power driven typewriting machines and more particularly to mechanism for automatically operating character types of the typewriter in different predetermined sequences to print desired words, abbreviations or amounts. The invention is disclosed in an embodiment suitable for use as a telephone toll billing machine in which the more commonly listed cities or toll charges are printed by a single key depression.

An object of the present invention is to provide a simple, compact mechanism usable in conjunctoin with a typewriter to operate character types in predetermined sequences for printing desired multiple character data.

Another object is to provide such a mechanism which does not interfere with the normal operation of the typewriter keys in any manner so that the automatic printing device may be called into action at any desired time.

It is also an object to devise a machine of this character adaptable to automatically type any selected group of characters and one in which elements for selection of character types are readily relocatable or changeable without substantial disassembling of the machine.

Still another object is to effect automatic tabulation of the carriage as an incident to initiation of automatic printing of certain character groups.

A further object is to provide one tabulating control to tabulate the carriage to one station and to provide another tabulating control to skip past said one station to another station, one of said controls having control over the carriage return initiating mechanism in a manner so that a carriage return will be instituted at a column to the right of a normal carriage return point.

Another object is to provide a tabulating key controlled mechanism to move a carriage return control member to a dierent position in which it is latched in such manner that it may be released as an incident to a return of the carriage at the end of a line.

It is also an object of the invention to provide a tabulating mechanism which is operable to one state for tabulating the carriage to one station and which is operable Ito a different state for tabulating the carriage in an uninterrupted run past said one station to another station, in combination with settable means providing normally .for an automatic return run of the carriage as the carriage reaches a certain position and further in combination with means to set said set* table means to an abnormal position by the tabulating mechanism if such mechanism is operated to tabulate the carriage to the said other station,

the settable means in its abnormal position providing for an automatic return run of the carriage responsive to advance thereof to a different position than when left in normal position.

An object adjunct to the last one is to provide a simple manually operable control means to cause a carriage return to be instituted automatically only at a still other position, whereby a form may be filled out in a diierent manner.

Also an object is to provide in connection with a plurality of phrase printing devices eicient control means comprising, a key individual to each device to call it into operation, and efficient control train means leading from said keys to said devices and numbering less than said keys or said devices.

Still another object of the invention is to provid-e a series of phrase operators in an eiiicient controlling association with members which are endwise displaceable in specic sequential orders at individual operation of said operators.

A further object is to provide for ready and convenient attachment to typewriting machines an eilicient control unit embodying a series of efficient phrase operating devices.

Further objects and features 0f the invention will be apparent upon consideration of the cletailed description which follows.

In the accompanying drawings representing a preferred embodiment of the invention:

Figure 1 is a right side view, partly in section, showing a typewriter with the mechanism of the present invention attached thereto,

Figure 2 is a top view of a phrase operator unit of the present invention disconnected from the typewriter,

Figure 3 is a perspective View showing a part of the novel structure of the phrase operator unit and the manner in which it is connected to the conventional keys of the typewriter, y

Figure 4 is a diagrammatic showing of the drive connections by which power is supplied to the key operating mechanism,

Figure 5 is a view of one of the clutches for the phrase operating means, y

Figure 6 is a view similar to Figure 5 out showing the clutch in its closed position,

Figure 7 is a perspective view of a right and a left tabulator key and the mechanism controlledby these keys to selectively project one of two tabulator stops,

Figure 8 is a rear elevation of the tabulator stops and the carriage return controls with the means for varying the point of carriage travel at which carriage return is initiated,

Figure 9 is a perspective showing of the carriage return initiating and terminating mechanism,

Figure l is a rear elevation of a mechanism on the carriage which is manually settable to vary the initiating points of carriage return,

Figure 1l is a view, partly diagrammatic, showing the relationship between the tabulating mechanism and the automatic carriage return instituting devices in connection with a form to be used in the machine, and

Figure l2 is a view similar to 1Figure 1i showing the automatic carriage return instituting devices in an altered condition, whereby entries may be made in columns diiierent from those shown in Figure 1l.

General description The invention as disclosed herein is used in conjunction with a typewriter for typing toll bills for telephone companies. This type of toll bill commonly provides an identication of the telephone being billed and the month for which the bill is rendered. rhere then follows a listing of the date of the toll calls, the locations called and in either of two columns, the charge for the call listed.

In operation, the operator first types the identilcation and month on the bill. A depression of the carriage return key then returns the carriage to the beginning of the typing line and line spaces the platen in a conventional manner. The toll charges are then listed on the bill. The day of the month on which the call was made is typed in the rst column and the form is tabulated to a .secondcolumn by operation oi a left tabulator key. This second column is for a vlisting of the location called. A power driven type selecting mechanism is provided to cause automatically the successive typing in this column of several characters which signify abbreviations of commonly called towns. Identifying characters for less common `places are typed in under control of the conventional single character typewriter keys.

After the place called has been typed, the charge for the call is to be entered in either one of two right-hand columns or typing stations of the form. The government tax is different on charges of twenty-five cents or over than it is on lesser charges, so that these diierent classes of charges are typed in separate columns to enable proper computation of the tax to be charged. Charges less than twenty-five cents are always in multiples or" ve cents and are typed as two digits in a third column, there being only four possible amounts to be typed in this column. Each of these four amounts is typed by two successive typing impressions caused by operation of a phrase key individual thereto. These keys each control a separate power driven member which will rst operate a mechanism to tabulate the carriage to the third column or typing station and will then operate the appropriate Ytype keys seriatim to print the desired toll charge. The carriage letter feed following the printing of the last digit oi the amount will operate 'the carriage return controls and thus initiate return of the carriage to the initial position, concomitantly line spacing the platen so that the next toll charge can be immediately started.

When the charge to be entered is twenty-ve cents or more, it is required to be entered in the last column or typing station on the right, and the right-hand tabulator key is used. The rst column to which this key tabulates the carriage is an unused column so that a double operation 4 0f the tabulator key is required. This last column is to the right of the column at which resultant to typing the carriage return mechanism normally becomes automatically effective. To prevent an automatic carriage return at the normal point, the right hand tabulator key is depressed, and has the effect to move a carriage return controlling member out of the path of a carriage return instituting tappet related to the third column, into cooperative relation with a return instituting tappet related to the last column or typing station, a latch being provided to detain the said control in lowered position pending the actual institution of the return.

Thus the carriage return mechanism is then conditioned for automatic operation after typing has occurred in the last column or typing station. The operation of the right hand tabulator key places the tabulating mechanism into a state to tabulate the carriage past the third column to the last column. The toll charge in the last column is entered by operation of the conventional type keys, and after typing of the toll charge is completed, the carriage is automatically returned under control oi the return instituting tappet related to the last column. The tappet on the carriage related to the last column is made longer than the one at the third column so that it is capable to operate the carriage return controlling member in its lower position.

It is occasionally desired to fill out the last two columns of these toll bills in a different manner. For example, a charge is to be typed in the third column. a letter in either of two vertical lines between the third and the last column and a single digit in the last column. For this purpose, the carriage return tappet condition on the carriage is made alterable by operation of a manually settable control to a special position. In the normal position of said control the tappet condition is for lling out a form in the manner described in the preceding paragraph. In the second position, the carriage return tappet for the third column is moved out of its effective position and a supplementary tappet is moved into position to be eiective one letter space before the tappet for the last column. With the control in said second position an automatic carriage return will be instituted after one digit has been typedin the last column instead of after typing at the end of the third column. The two vertical lines between the third and the last column are tabulated to form the third column respectively by a single or double depression of the left tabulator key, the right tabulator key being reserved for reaching the last column only.

Detailed description The invention is disclosed herein as applied to the well-known Underwood electric typewriter and for that reason, only so much of the typewriter as is required to point out the novel features will be described. The typewriter, Figure l, includes a set of type keys 2i! at the front of thc machine, a set of power actuated type bars 2 i, a paper carriage 22 slidably mounted on the typewriter frame 23 and a revoluble platen 24 mounted in the carriage 22. Key levers 25 on which keys 23 are mounted are pivoted on a rod 26 and each carries a hooked arm 27 pivoted thereon. A series of type actuator bars 2S, each pivoted at 29 to an arm 3i] upreaching from a pivot rod 3i, are provided with lugs 32. Each lug 32 engages under the hooked arm of a key lever 25, a spring 33 being provided to normally hold the rear end of each actuator bar 28 in an upper idle position. Each actuator bar 28 carries a pawl 34 pivoted thereto for engagement with a snatch roll 35. Snatch roll 35, as viewed in Figure 1, is continuously driven in a counterclockwise direction by a motor 36 through a belt 95, Figure 4, and will when an actuator bar 28 is depressed, engage pawl 34 thereof and drive the bar 28 forwardly. A plurality of sub levers 31 on a rod 38 rest upon the forward faces of arms 3U and are connected by link wires 39 to the lower ends of type bars 2l. Forward drive of an actuator bar 28 as above will, through arm 3D, sub lever 31 and link 39, drive the associated type bar 2l about its pivot wire 4l) and against platen 24.

Carriage 22 is urged in a letter spacing direction by the usual spring drum, not shown, and is released step by step under control of the type bars 2| by a conventional escapement mechanism also not shown, but which is connected to shaft 4I. A rack bar 42 on the carriage is normally engaged with a pinion 43 on the upper end of shaft 4l to allow the escapement mechanism to control the movements of the carriage 22.

Further details cf the Underwood electric typewriter above described may bev found in U. S. Patent 2,254,764, issued September 2, 1941, to Harry C. Yaeger, in Patent 2,262,676, issued November 11, 1941, to W. F. Helmond and in Patent 2,303,878, issued December 1, 1942, to W. F. Helmond.

Automatic type key operation When toll bills as above described are typed in the billing oice of the telephone company, there are certain combinations of letters and numerals which must be typed many times during a day. For such combinations, a'power driven key operating mechanism has been devised which will in response to a single key depression depress sequentially the desired conventional type keys. This operating mechanism consists of a plurality of shafts, each engageable with'a power source by an individual key and each carrying a plurality of angularly differently placed cams thereon to operate the desired type keys in proper order. Certain shafts may also be provided with a cam to release the paper carriage for tabulation to a desired location either before or after the typing is performed.

The key operating mechanism comprises, Figures 1, 2 and 3, a plurality of horizontal shafts 43 freely rotatable in a pair of side plates 44. The plates 44 are secured to corner blocks 45 whereto also are xed front and rear end plates 43, the entire mechanism comprising a unit assembly. Perforated ears 41 are bent oi the rear end plate 46 and from the forward ends of side plates 44 to permit the key selector unit to be releasably secured to the typewriter base. Three combs 48 with slots spaced transversely of the machine in substantial agreement with the keys of the keyboard are secured between the side plates 44, the front and rear combs 48 being fixed to the corner blocks 45.

A'plurality of single tooth cams 49 are adjustably secured on each shaft 43 and when the shaft 43 is rotated will operate some of a plurality cf cam slides 5D, which are freely slidable in the slots of combs 48. Each slide 59 to be operated by a cam is provided in the path of such cam with a stud 5I riveted in a hole 52. The slides 59 are all identical and each is perforated with one hole 52 for each shaft 43. Studs 5| in the proper holes 52 on the appropriate slides 59, and cams 49 suitably positioned on the proper shafts 43 will provide for desired sequential operations of the slides 5D at operations of the individual shafts or rotors 43. Each slide 59 is connected to a type key lever 25 by a bell crank 53 having on a downreaching arm an ear in front of the slide 59, and having on another arm an ear resting on a type key lever 25. The bell cranks 53 are guided in a slotted comb 54 which is fixed to the front end plate 46, and are freely rotatable on a rod 55 held in brackets 56 secured to the end plate 46 above comb 54.

In setting up this key selector unit, a bell crank 53 and a slide 50 are inserted in the positions for each type key lever 25 which is to be operated in typing all of the selected words or type combinations. Each shaft 43 carries thereon as many cams 49 as there are characters in the word or phrase which is to be typed under control thereof, and includes also one cam 49 for each blank spacing operation required. The individual slides 59 are severally for controlling the typing of one particular character, or for controlling an operation of a letter feed mechanism, or for instituting a tabulation, and each slide 59 is provided with a stud 5l secured thereto adjacent any shaft 43 which is required to operate it. Cams 49 are placed on the shafts 43 to line up with the necessary pins on the slides 56 which are to be operated by the shaft 43. The cams 49 are then xed to shafts 43 angularly so disposed as to control operation of the slides 59 in the proper sequence. Some of the cams may have two or more cam projections, and, if desired, two cams, one adjacent each side of a slide 50, may be provided. This is for-use in case the same character is to be typed. more than once under control of the same shaft.

The shafts 43 may be power cycled under control of a plurality of keys 59 positioned above the keys 29, one key 59 being provided for each shaft 43. The phrase keys 59 are slidably mounted in brackets 60 xed to the typewriter frame 23 and are yieldably held in their upper positions by individual springs 6I. A roller lock 62 of conventional design is fixed to the lower bracket 69 to prevent simultaneous depression of more than one key 59. For each two adjacent keys 59 there is a three armed plate 63, see particularly Figure 3. The plates 63 are pivoted on a horizontal portion of the lower bracket 60 between the associated pairs of keys 59 and each plate 63 is rockable by operation of one or the other key respectively in one or another direction from a normal central position, each key 59 having for this purpose a cam nose 64 for opposite camming action on the plate. Plate 63 when rocked by one key 59 of a pair will engage under a horizontal portion of the cam nose 64 of the other key 59 of the pair, and thereby will prevent even partial depression of such other key.

The rear arms of plates 63 are each engaged in a slot 64 of a slide 66, there being one slide 66 for each plate 63. The plates 65 are slidable to either side of their normal central position on a pair of headed studs 58'flXed in the forward side of the front end plate 45. Each plate 69 is in control of a side 68 and to this end has another slot 6'? in which is engaged one end of the related slide 68. All slides 68 extend from the plate 96 toward the right through one or more slotted guides 69. The slides 68 are individually communicative with arms of a group of direction changing bell cranks 'l0 which are horizontally swingable on a rod Ii in a slotted guide l2 at the front right corner of the base frame.

The other arms of the bell cranks 10 are each engaged in a notch 13 of a slide 14 and each of the slides extends rearwardly along the right side of a plate S1 mounted on studs 88 fixed to the right side plate 44, the slides passing through slotted guides 15. Each slide 14 has two lugs 18 forming a notch in which is positioned an ear 11 of a slide 18. Slides 18, one for each slide 14 and hence one for each pair of keys 59, are each slidably supported on a stud 13 and a pair of studs 80, these studs being carried on the side plate 81. Each slide 18 carries a stud 8| projecting to the right therefrom, and a square block 82 reaching from the slide 18 through a slot 83 in plate 81. A pair of centralizing arms 84, connected at their upper ends by a spring 85 and embracing a stud 86 on plate 31 and stud 8| on slide 18, serve to retain the individual slides 18, 14, 60 and 66, and the plate 83, in their normal, central positions.

Each slide 18 is associated with a pair of the type lever operating shafts 43 and will, depending upon its direction of movement from the central position, serve to connect one or the other of the associated shafts 43 to the power source 36. Each shaft 43 has mounted on its right end between plate 44 and plate 81, a freely rotatable gear 89. The gears 89, Figures 3 and 4, are all intermeshed to transmit rotary motion from one to the next and are constantly driven while the typewriter is in use. The drive is by a gear 90 on a shaft 9| journalled in side plate 44, the gear 98 being in mesh with one of the gears 89. A pulley 92 on shaft 9| is connected by a belt 93 to a pulley 94 constantly driven from motor 35, pulley 94 being a double pulley and also serving to drive the typewriter snatch roll 35 througha belt 95. Due to their intermeshing, adjacent gears 89 are driven in opposite directions and as a result, the individual shafts 43 connectable thereto will also rotate in opposite directions.

Each shaft 43 may be connected to its associated gear 89 by a clutch of substantially conventional construction. The clutches are all similar but since adjacent gears 89 are rotating in opposite directions, the clutch parts are similarly alternately reversed. Each clutch, Figures 3, 5 and 6, comprises, a toothed driving member 96 secured to the right-hand face of a gear 89, and a pawl 91 pivoted on a stud 98 of a disc 99 secured to a shaft 43. Pawl 91 is slotted at both ends to embrace disc 99, the unslotted central portion passing through a notch in disc 99. The pawl 91 is formed with a tooth I0| to engage any tooth of the drive member 96. Pawl 91 is biased to engage its tooth IOI with the driving member 95, and to this end a spring |02 is connected between a stud |83 on the pawl 91 and a stud |04 on the disc 99, but the pawl is normally held out of engagement with the driving member by an arm |85 pivoted on disc 99 at |06. Each of the arms carries a square stud |01 thereon and each of the studs 32 of slides 18 is normally engaged by two of the studs |01.

Each stud 82 in the normal central position of its associated slide 19 lies over the studs |01 related to two adjacent clutches and thereby retains the pawls of such clutches normally out of engagement with their drive members 95. Movement of any stud 82 either way from its central position will free one or the other related two studs |01 for upward movement, thereby to enable the spring |02 of one clutch to engage the pawl 91 with the drive member 95. In the movement of the stud 82 to free either of the studs |01,

the stud 82 moves more fully over the other stud |01 and continues to hold such later stud against clutch closing movement.

Each shaft is yieldably held in its full cycle position by a detent arm |08. These detent arms |08, Figure 3, are pivoted on studs |09 which project rigidly from the left side plate 44 in two horizontal rows, each arm |08 carrying a roller IIII. The detent arms |08 for alternate shafts are respectively carried on an upper one and a lower one of the studs |99 and are connected by strong springs ||I which have anchorage on said arms |08 by means cf studs I|2. The arrangement is such that the various rollers I I0 press each against a notched disc II3. Said discs are fixed on the left ends of the shafts 43, and the rollers I0 normally lie in the notches of the discs I3 to retain the shafts individually in full cycle positions. The rollers |I0 by preventing backward rotation of the shafts 43 have also the effect normally to keep the clutch arms |05 in open-clutch position.

It is also possible to cause under control of any word printing rotor or shaft 43 a tabulation of the paper supporting carriage 22 to a desired column, and such automatic tabulation may be preceded or followed by sequential typing under control of the rotor. For this purpose the slide 50 nearest to the right side plate 44, see Figure l, has been provided for operating a tabulating mechanism. Specically, cams 49 on the shafts 43, appropriately provided, displace the stated slide 50 transitorily toward the front of the machine, to operate an engaging lever II6 for a tabulating actuator bar |53. The lateral position of the stated slide 50 is different from that of the engaging lever IIB for the tabulating actuator |53, and for operation of the lever I I6 by the slide 50 a bell crank is provided which comprises, see Figure 2, two laterally offset arms II1, ||8 connected by a sleeve I I9 provided on the pivot rod 55. One arm IIS of this crank is adjacent the slide 50 to be driven thereby and the other arm ||1 is olfset slightly to lie above the tabulating lever IIS. Operation of the tabulating lever ||6 will free the carriage for movement to a predetermined position in a manner to be hereinafter described under the heading Tabulating mechanism. If the cams 49 are so preset that the carriage 22 will be tabulated before the selected group of characters are automatically typed, then sufficient angular space is provided between the cam 49 for the tabulator lever II6 and the rst cam 49 of the character typing group to permit the carriage 22 to arrive at the selected position before typing ensues.

This entire selective word printing control device may, with the exception of keys 59 and plates 83, be readily removed from the typewriter to permit repairs or cleaning or to permit changes in the character` groups to be printed thereby. The bolts passing through the ears 41 of the frame plates which bolts hold the unit to the typewriter are rst removed. Then the belt 93 is disengaged and by a slight leftward movement of the front of the unit, the ears of the arms of bell cranks 53 are moved from above the key levers 25. The unit may then be fully separated from the typewriter, the latter of which is of conventional structure and is not altered in any manner, and may be used in the normal manner while the automatic control unit is detached and being worked upon.

9 Operation of word printing device The operation of the word printing mechanlsm is believed clear from the above detailed description but will be briefly summarized herein. When printing of one of the predetermined groups of characters is desired, the key 59 for that group is depressed. Such depression will by cam 64 rock plate 63 about its pivot in one or the other direction depending upon which key 59 of the pair of keys 59 associated with the plate 63 is depressed. The tail of plate `63 will move slide 66 in one direction from its central position and the slide 66, see Figure 3, by way of a slide 68, a bell crank 10, and slides 14 and 18, will move stud 82 from above one of the clutch studs |01 to cause one of the shafts 43 to be clutched to its associated drive gear 88. As the shaft 43 rotates, the cams 4S thereon will engage and operate seriatim certain appropriate slides 50. Each slide 50 will, when operated, rock its associated bell crank 53 about its pivot rod 55 to depress a related type key lever 25. Depression of each different lever will engage the pawl 34 of one of the actuator bars 28 with the snatch roll 35 for the latter to impart a forward movement to said actuator bar. Forward movement of bar 28 will rock sub lever 31 to drive the type bar 2| connected thereto upwardly against platen 24 to cause the desired character to be printed.

Tabulatiug mechanism The typewriter of the present invention is constructed with two tabulating keys |25 and |26, key |25 being on the left, Figure 1, and key |26, Figure 7, on the right side, fixed respectively to tabulating key levers |21 and |28. The key levers |21 and |28 are pivoted on screws |29 xed in the right and left side plates, |23 and |24 respectively, of the typewriter. Either key lever |21, |28 will, when depressed, rock a lever arm |30 about its pivot point |3| provided on a part of the frame 23, to initiate a tabulating operation. Lever |21 is provided with an upstanding arm |32 to which a spring |33 is connected, the other end or the spring |33 being connected to a fixed stud |34 on the side plate |24 of the typewriter. Another spring V|35 is connected between a stud |36 on arm |34 and a stud |31 on an arm |38, the latter pivoted on f a stud |34, and the spring constituting a connection for the arm |32 to operate the arm |38 yieldably. Arm |38 carries in its forward end a stud |39 which is positioned to the rear of an arm |40 of a yoke |4| rotatable on a xed rod |42 on frame 23. Another arm |43 of yoke |4| lies over a projection of arm |35. Thus depression of tabulator key |25 will depress arm |30 through the medium of arm |43 on yoke |4|.

The right-hand tabulator key |25 will, when depressed, also rock the arm |30 about its pivot |3|. An upreaching arm |43 of lever |28 is cut with a notch |44 in which is positioned a stud |45 of an arm |46 pivoted on a stud |41 fixed in the typewriter right side plate |23. Also pivoted on stud 41 is an arm |48 connected by a spring |49 yieldingly to arm |46, the forward end of arm |48 lying over the similar end of arm |46 to establish the normal operating relation of the arm |48 with respect to the arm |46. The forward end of arm |48 rests upon the right end of lever |30, and it follows that depression of tabulator key |26 will rock arms |46 and |48 as a unit about their pivot |41 to depress arm |30.

A projection |52 of arm |30 rests upon the tabulation instituting lever H6, previously de# scribed, wherefore operation of either tabulator key |25, |26 will rock lever H6. Lever ||6 is similar to the type key levers 25 except that it has no key-bearing portion and is operable to connect a tabulation actuator bar |53, Figure 1, to the snatch roll 35. Actuator bar |53 is substantially similar to the bars28 for the type bars 2| but is provided with a slotted rear eX- tension. A link |54 with a stud |50 in the slot of actuator bar |53, is pivoted to an arm |55 secured on a shaft |56, see also Figure 7, and thus the bar |53 after connection to the snatch roll 35 will rock the shaft |56 counterclockwise in Figure 1. A stud |51 on a lower extension of arm |55 at operation of the actuator bar |53 follows against a rearward extension of the operated lever ||6 to retain lever ||6 in its operated position for the forward end to stay active in a usual key-lever cross lock. The pin and slot connection between actuator |53 and link |54, however, permits actuator bar |53 to return to its normal position independently of the shaft |56 and certain tabulator parts yet to be described.

A link |53 is connected between another arm |56 on shaft |56 and a yoke |65 freely rotatable on a shaft IGI. This comprises two spaced rearwardly reaching arms and is rocked clockwise in Figure '7 upon actuation of shaft |56. A spring |62 connected between a convenient part of the typewriter frame 23 and a rod |63 extending between and fixed in the rear arms of yoke |66 biases the yoke |66, and thereby shaft |56 to their normal positions as shown in Figure 1. Freely rotatable on rod |63 and biased counterclockwise in Figure 7 by a torsion spring |64 is a coupling yoke or member |65, a right arm of which is formed with a cam surface |56 and a shoulder |61, the latter normally positioned under a stud |66 of a tabulator reed |63. The left arm of the coupling yoke |55 is provided with a stud |10 and is also formed with a shoulder |1|. This latter shoulder is normally positioned to the rear of a stud |12 projecting from a tabulator reed |13. Tabulator reeds |69 and |13 are identical in shape and are each formed with an upper slot |16 and a lower slot |17, the lower slot |11 embracing the ends of rod |63 projecting from the coupling yoke |66. A rod |18 fixed in the tabulator reed housing |79, Figure 8, is passed through the upper slots |16 to limit the lower positions of the reeds |65 and |13. The reeds |69 and |13 are normally held in their lower positions by springs and are each provided at their upper ends with a latching block |8| normally resting against theside of a ledge |82 on the tabulator reed top guide |83. Either tabulator reed upon operation is detained in upper position by the block 8| thereon catching over the edge |82. When in response to operation of the left hand tabulator key or in response to an operation of the bell crank ||1, ||8, the shaft |56 and yoke |60 are rocked as above described, the coupling yoke |65 will move bodily with the yoke |60, and resultingly the shoulder |68 of the coupling yoke will elevate tabulator reed |69 to project the upper end of reed |69 into the path of one of the tabulator stops |84 mounted on the rear of the carriage 22. In a manner more fully set out in Patent No. 2,303,878, the projection of a tabulator reed will release carriage 22. Moreover, the projected tabulator reed |60 is latched in its elevated position until it is struck by a 11 tabulator stop |84 on carriage 22. The lower end of slot |11 of the reed |69 or |13 that is being projected follows the rod |63' of the coupling yoke |65 and will prevent return of yoke |60 and thus the shaft |56 and connected mechanism until the tabulating run of carriage 22 is completed, that is until the tabulator reed is released from the ledge |82, wherefore the parts are spring restored to their normal positions.

Obviously, the reed |13 is unaffected and stays in idle position during the projection of the reed |69 by the coupler shoulder |61. When it is desired to project tabulator reed |13 and thus stop the carriage 22 at positions different from those determined by reed |69, the right-hand tabulator key |26 is depressed. This key |26 will cause a rocking of shaft |56 to operate the yoke |60 as above pointed out, but will in addition and slightly before rotate the coupling yoke |65 clockwise about rod |63. Arm |48 associated with the tabulator key |26 will not only depress arm |30 but will also depress an arm |88 parallel therewith and pivoted on a stud |89 on frame 23. Arm |88 overlies an arm |96 of a yoke |9| which is pivotally carried on rod |42, another arm |92 of the yoke being connected by a wire |93 to an arm of a yoke |84 pivotally carried on the shaft |6|. Another arm |95 of yoke |94 carries a stud |86 for operation on the cam surface |66 of the coupling yoke |65. A torsion spring |91, Figure 8, on the shaft |6| between the yoke |94 and a portion of the tabulator reed housing |19 keeps the yoke |94 including the stud |96` and connected parts always in normal position, except when the right hand tabulator key |26 is operated.

Depression of key |26 will through operation of the stated parts |88, 19|, |93 and |94 raise stud |96 and rock the coupling yoke |65 clockwise in Figure 7. This rocking of yoke |65 will remove shoulder |61 from below stud |68 and will concomitantly place shoulder |1| under stud |12 on the reed |13, so that upon the ensuing rocking of bail |66, the tabulator reed |13 will be elevated and reed |69 will remain in its lower position. The coupling yoke |65 is retained in its rocked position after initial upward movement and until restoration of tabulator reed |13, and irrespective of an early release of key |26, because the rear side of shoulder |61 during the operation of the yoke |66 becomes located in front of the stud |68 of reed |69 which remains in its lower position.

Tabulatz'ng mechanism operation The function of the tabulating mechanism insofar as the left-hand tabulator key |25 is concerned is substantially the same as in the conventional Underwood electric typewriter. Depression of key |25 will depress lever ||6 to engage actuator bar |53 with snatch roll 35 for anrensuing power stroke of the bar |53. Also in the use of the machine with the forms illustrated in Figures 11 and 12, the groups of predetermined amount characters are always printed in the third column or typing station which is determined by engagement of the second stop |84 and tabulator reed |69. The operator shafts 43 for these predetermined amounts are therefore each provided with a cam 49 to automatically operate rst the lever ||6. Therefore, if the carriage 22 is positioned in the second column, and then one of the keys 59 representing an amount is operated, there will ensue first an automatic tabulation of the carriage to the third column or typing station and then the selected predetermined amount will be printed automatically.

When the carriage 22 is to be tabulated from the second column (location-called column) to the fourth column or typing station, the operator depresses the right-hand tabulator key |26. This will not only depress lever ||6 but will also rock yoke |65 to cause projection of tabulator reed |13 instead of tabulator reed |60. It may be noted from Figures 11 and 12 that reed |13 is offset to the left of reed |69 the same distance that the fourth column of the form is to the right of the third column. The carriage 22 will therefore be positioned this oiset distance further to the left when using the right-hand tabulator key |26 than it would be if the left tabulator key |25 or certain of the keys 56 were used. However, as is evident from Figures 11 and 12, when the carriage is in the second column, the left-most tabulator stop |84 has not moved to the left of the tabulator' reed |13 and with the carriage in this position, operation of tabulator key |26 resulting in the projection of tabulator reed |13 will cause the carriage to stop intermediate the second and third columns. As there is no typing to be done at this position, the right-hand tabulator key |26 is again depressed and the carriage will now tabulate until the next tabulator stop |64 engages the reed |13, this stationing the carriage in the desired fourth column. The last stated depression of the tabulator key will skip-tabulate the carriage in an uninterrupted run past the third column. It is to be observed that the tabulating mechanism, by selective use of the two tabulator keys, is operable to one or another state to tabulate the carriage to two different typing stations.

Carriage return mechanism The mechanism to return the carriage 22 to the right to start a new line of `typing is shown in Figures 8 and 9. The power drive for returning the carriage 22 and the frame mounted clutch control therefor are substantially similar t0 those shown in the Patent No. 2,262,676 above noted and will be only 'brifley described. A constantly driven toothed driving member 266 and a slidable toothed driven member 26| constitute the carriage return clutch. The driven member 20| is moved into engagement with its drive member 266 by a fork 262 xed to a rotatable shaft 203 and engaging in a groove 204 in the hub of member 26|. An arm 265 also Xed on shaft 203 is biased by a spring 266 connected thereto in a direction to engage the clutch members 200 and 26| but is normally restrained in the clutch disengaging position by a link 261 which has connection with a normally latched lever 208. The latter is pivoted to the frame at 269 and latched at its right end in clutch disengagng position by a latch lever 2|9. Latch lever 2|0 is pivoted to the right side plate |23 at 2|| and is held in latching position by a spring 2|2 A carriagecontrolled mechanism is provided to rock the latch 2|6 and thereby to release the lever 268 and thus permit spring 266 to engage the carriage return clutch members 266 and 26|. This mechanism comprises a vertical slide 2|3 having a luz,r 2|4 which passes through an aperture in side plate |23 to engage under an ear 2| 5 bent from the latch lever 2|6. Slide 2|3 is guided at its upper' end by a stud 2|6 in the typewriter side frame |23 `and is at its lower end connected t0 a lever 2 1 pivoted on a stud 2 I8. A vertical arm 2 9 of lever 2 I1 abuts a stud 220 on a frame-supported member or slide 22| which is operable by the carriage for instituting carriage returns. The member or slide 22| is rockable about a stud 2 I8 pivoting it at its lower end, and projects through a square hole 222 in the tabulator housing top plate |83, a spring 225 connected between an ear f slide 22| and the tabulator reed housing |19 serving to hold the upper end of slide 22| in the right end of square hole 222. The tappet-engageable slide 22| is not only rockable about the stud 2|8 but is also slidable thereon vertically and the slide for this purpose has a slot 235 wherethrough the stud 2 I8 extends. Normally a spring 236 connected oppositely to said slide 22| and a stud on the top plate |83 holds the slide 22| in its upward. limit position in cooperative range with the tappet 226. A link 224 connected to the upper arm of lever 288 and guided as shown in the aforesaid Patent No. 2,262,675, carries a stud 225 normally abutting the right side of slide 22|.

j The latch lever 2|6 is automatically tripped when a carriage return instituting tappet 226 engages the upper end of slide 22| and rocks it to the left, that is -to the right in Figures '7 and 8. This rocking of slide 22| will, through stud 22D thereon, rock lever 2 I1 to raise slide 2|3 and displace the latch lever 2 I6 to free the lever 268 for a clutch closing movement under the urge of the spring 225.

When the lever 28 is rocked, the stud 225 on link 224 will displace the slide member 22| within the ho-le 222 in the direction of advance of the carriage, the tension of spring 206 transmitted to the link 22d being suflicient to overcome the urge of the spring 223, the latter of which is suiiciently" strong merely to keep the member 22| in contact with the pin 225. At the end of each instituted power return of the carriage a return, terminating tappet 221 on the carriage 22 will strike and forcibly restore slide 22| to its o-riginal position. This motion of slide 221 acting Vthrough stud 225 and link 22d will restore lever 268 to the clutch disengaging position and the latch 2| will snap over `and hold the lever 268 in restored position.

As thus far described, the carriage return mechanism is capable automatically to return the carriage 22 from a given end of line position to the starting point. In the present machine, however, it is desired to return the carriage from the third column for some entries, and for other entries the return should 'be postponed until after the fourth column has been passed. It

will be remembered from the description of the tabulating mechanism that the carriage is tabulated from the second column to the fourth column by the use of the right-hand tabulator key 226. According to one feature of the invention, operation of the right-hand tabulator key |26 lowers the tappet-engageable slide or member 22| of the carriage return controlling mechanism to allow tappet 226 to pass idly thereover without a return instituting effect. There is another carriage return instituting tappet 24| provided on the carriage in a position corresponding to the end of the fourth colmnn, and this tappet reaches farther down than the tappet 226, into cooperative range with the tappet-engageable-member 22| only when the latter is in lowered, that is, abnormal position. Thus the machine has automatic return instituting means which is settable to an abnormal position to cause a return at ar- 14 rival of the carriage at a more advanced position.

As may be visualized from Figure 7, operation of the ta'bulator key |26 will result in a rocking of the coupler |65 about the rod |53. During such rocking movement of the coupler |65 the stud thereon will engage an arm 232 loosely pivoted on the shaft |6|, thereby to depress :such arm 232 and move a link 233 pendant therefrom downwardly. The lower end of the link 233 is forked and engages a stud 234 on the slide 22|. At operation of the tabulator key |26 the link 233 is downwardly displaced, and the slide 22| becomes lowered. As this happens, a latch 238 pivotally provided on a stud 239 in the top plate |83 snaps automatically into position over a block 246 on the slide to lock the slide in its lowered position.

After the carriage has been tabulated under control of the key |26, and after resultant to typing at the fourth column the carriage passes a letter feed space therebeyond, the low-reaching carriage tappet 22| will engage the upper end of the slide 22| to rock it to the left and thereby to close the carriage return clutch. Consequential to such rocking of the slide 22| the latch block 2116 on the slide will move clear of the latch lever 23B, the latter having capacity for only a limited movement, under the tension of a light spring 242 associated therewith, inasmuch as a tail of the latch 238 engages a stud 231 in the top guide plate |83.

Manual change of carriage return tappets The hereinabove described tabulating mechanism in the novel cooperative association with the carriage return mechanism gives very efcient and reliable service if on diierent lines the final entry must be made in different columns, for example, as indicated on the work-sheet in Figure ll, wherein the final entry is either the third or the fourth column, and wherein such nal entry is to be followed by an immediate power return of the carriage. At times, however, a sheet is to be filled out in a different manner, for example as in Figure l2. Specifically an entry in the third column is to be followed by additional typed data at one of two vertical lines indicated in Figure 12 between the third and the fourth column, and such data is further to be followed by a single or double digit entry in the fourth column. The tabulating procedure to reach the several columns up to and including the third column is the same for the work in Figures 11 and 12. The work example in Figure 12 requires entries always beyond the third column so that an automatic carriage return is never desired to ensue as the carriage passes out of the third column. For this reason the return instituting tappet 22E is so mounted and constructed as to be moved totally out of range of the tappetengageable slide 22|. As shown in Figures 1, 8 and 10, the carriage return control tappets 226, 221 and 221 are all carried on the usual margin stop rack 246, the tappets 221 and 24| being of conventional form and secured to the rack 246. The tappet 226 is supported for upward displacement on a bracket 25| which is unitary with the return instituting tappet 22|. To this end the tappet 226 is provided with a lower stud 248 and an upper stud 221, the latter guided in a vertical slot 250 of the bracket 25| and the former resiliently urged against a detenting projection 252 on the bracket 25| by means of a spring '253. The spring extends between said stud 248 and a stud 254 on the bracket A screw 255 fastens the bracket at its left end to the tappet 25|, as seen in 'Figure.10', and an ear 256 overlying the rack 246 assistsin holding the bracket. There is a space between the' bracket 25| and the rack 246 vertical 'adjusting movement.

T he tappet'226 'is'slidable to its upper, ineffective positionout'of range with the slide 22|, by

a lever 251 which is pivotally supported on the bracket 25|, one arm of said lever engaging in a' slot 258 of the tappet 226, and another arm reaching upwardly to form a handle. Tappet 226 'and'lever 251 are detented in either of their two adjusted positions by the tension of the spring 253 which causes the stud 248 to bear either below or above the point of the detenting tooth 252. The tappet 226 is totally incapacitated in its upper position and unable to institute an automatic return when the carriage reaches the third column.

When lin connection with the work illustrated'in Figure 1l the carriage is tabulated t0 the fourth column by the depression of the right hand tabulator key |26, the tappet 24| will not engage the slide 22| for a carriage return institution before two characters are typed. When the form is to be filled out as in the example shown in Figure 12, then in most instances only "a single digit is required to be typed'in theourth column, and`to make unnecessary a letter-feed spacing operation after the typing of such' single digit, a normally disabled carriage return instituting tappet 260 is provided on the carriage and is settable at will to a potentially effective position. This tappet comprises an ear bent off the lowerend of a lever 259 which is pivoted on a stud 262 of the bracket 25|. The upper end of tappet lever 259 is formed with a cam slot 26| whereinto there extends the stud 241 of the tappet 226. When the work sheet is required to be typed in accordance with Figure 1l, the tappet ear 260 lies under and slightly in carriage feed direction beyond the effective face of the tappet 24|. 'The lever 259 bearing the tappet 260 has then theposition seen in Figure 10. However, the lever 259 is optionally settable to the position seen in Figure 8 to project the tappet ear 260 thereonto a potentially active position one carriage step in advance of the tappet 24| -for 'carriage return instituting operation on the slide 22|. The control lever 251 which is provided to raise the tappet 226 is operatively also in control over the tappet lever 259. To this effect the upward movement 'of the stud 241 borne on tappet l226, lby action in the cam slot 26|, swings the tappet ear 259 with its lug 266 to active position.

The ear 266 displaces the slide 22| as the carriage executes a letter-feed step in response to the typing of one digit in the fourth column, but this does not preclude the typing of a second digit which'sometimes is required as is indicated in the second line of the form shown in Figure 12. This is because the carriage, after the first digit is typed.` has time to execute a full letter-feed step before the actual return movement of the carriage begins. Therefore, an operator may quickly follow the key operation for the nrst digit with a key operation for the second digit, causing the impression of the second digit to be made in the proper place and before the carriage return commences. The delay of the carriage return which m'akes this procedure feasible is partly clue to the factthat it takes a moment for the return clutchv to close the carriage return drive vanced point of vcarriage travel.

16 and tension the usual driving belt sui'ricientlyto start the carriage 22 on its return.

Operation of carriage return mechanism The carriage is power returned tothe position for star-ting a new line of typing by the engagement of the clutch disc 20| with the driving disc 260, either under control of a conventional carriage return key, not shown, or under control of the carriage 22. The lever 298, which is connected with-the shifting fork for the clutch disc 25|, is spring urged to clutch engaging position, but is normally held bythe latch lever 2|!) in open-clutch position. Whenever the slide 22| is swung to the left by one 'of the carriage return instituting tappets on the carriage, there results an operation of the latch2|6 so that the lever 208 is freed for clutch closingaction under the urge of the spring 206. Depending on whether the slide 22| at the. tabulation is left in upper position or lowered therefrom, the tappet 226 or the tappet 24| is in return instituting control. The return of the carriage is termina-ted automatically when the tappet 221 engages and moves the slide 22| rightwa-rdly to the position4 seen in Figure 9. Slide 22|` is normally positioned t0 be rocked by the virst return Ainstituting tappet 226 'but when a tabulation operation is initiated by th'e tabulating key v|26 vthe slide 22| is thereby depressed to and latched in its lower, abnormal position out of the path of tappet 226 and into the path of the tappet 24| which reaches farther down than the tappet 226. 'Tappet 24| will then rock the slide 22| at a more ad- Whenever the tappet 24| rocksV the slide'22l the latter will be freed automatically from its latch 236 for restoration to its normal position.

When the sheet used is to be lled out in accordance with Figure 12, a lever 251 on the carriage 22 is moved to its leftward position, This operation of lever 251 will raise tappet 226 to an ineffective position and will project an 'ear 266 of lever 259 one step in advance of tappet 24| so that there will' be' only one point from which the carriage will automatically return, which point is different from either of the return points effective when the lever 251is in the position seen inFigure 10.

' Summary The machine of the present embodiment of the invention is particularly designed to type telephone toll bills of the type illustrated in Figures l1 and 12 and its operation will be summarized briefly with respectto such gures. When the Vfirst bill is inserted in the `typewriter platen, it is manually adjusted to the initial starting position and the telephone number of the party being charged is typed for identification purposes. The carriage 22 is then returned to the'starting positionand the platen 24 line spaced, both in the usual manner. On the second line is typedthe month for which the iirst toll charge is to be billed and the carriage 22 is again returned andthe platen 24 line spaced. The operator is now ready to enter the required toll charges. Y

From information furnished her, the operator now types the day of the month on which the first toll call was made and depresses the left-hand tabulator key |25. This tabulator key depression starts an operation fof the` t'abulating mechanism to project tabulator reed |69 and free the carriage for tabulation until its rst tabulator stop |84 strikes reed |169 'at which time the carriage is positioned in the second column of the form. In this column -is to be typed an abbreviation of the locality called. Assuming that the locality is one for which an operator `selecting key 59 is provided, the operator depresses the appropriate key 59. This key depression will connect one of the shafts 43 to the associated constantly driven gear 89 for rotation thereby. During the rotation of shaft 43, the cams 69 thereon will act upon slides 5B to depress seriatim the required type key levers and. thus cause the desired abbreviation to be printed. The charge for this call is to be entered in the third column and hence is one for which also an operator selecting key 59 is provided. Upon depression of the appropriate amount key 59, another of the shafts 43 is released for one revolution. The first effective cam 49 of this shaft will, through a slide 50, depress the tabulation instituting lever i6 and the tabulator reed |69 is then arresting the carriage 22` in the rst space of the third column or typing station. After an interval suiicient to allow the carriage 22 to tabulate to the third column, the remaining cams G9 on the active shaft 43 become effective to cause the selected digits to be printed seriatim. On the step of the carriage 22 after the last figure of the amount has been printed, the tappet 22S on the carriage moves slide 22| to the left as viewed from the front to cause or initiate a return of the carriage to the starting position.

In typing the second line of the bill of Figure l1, the date and locality are printed in the same manner as above described. However, the charge for this call is greater than the twenty-five cent limit enterable in the third column and thus must be typed in the fourth column. Noting this fact, the operator, after the locality designation has been typed, will depress the right-hand tabulator key |26. This key will cause tabulator reed H3 to be projected instead of reed |69 and the carriage 22 will resultingly tabulate to a point intermediate columns two and three. Depression of tabulator key |26 will also act to depress the carriage return slide 22| to a lower latched position out of the path of carriage tappet 226, so that the slide is then at a level to institute a carriage return in cooperation with the tappet 24| instead of tappet 22E. A second depression of key |25 will free the carriage 22 for movement through the third column and to the fourth column. There will be no automatic carriage return at the end of the third column due to the prior depression of slide 22| below the effective path of tappet 222. The operator now types the charge for this call in the fourth column, backspacing the carriage if amounts of one dollar or more are involved, and in the step of the carriage 22 after the last digit is typed, the long tappet 24| on the carriage will strike slide 22| to initiate a carriage return, the slide 22| being released from its latch 23B by this movement and being thus freed to rise to upper, normal return instituting position. The remainder of the bill is typed out by a repetition of these two series of operations.

Occasionally a series of bills of the type illustrated in Figure 12 are required. These bills always include an amount typed in the third column and the type bars 2| will, in this column, be controlled by selective operations of appropriate cam shafts i3. To prevent an automatic carriage return after this amount has beenvtyped, lever 251 on the carriage 22 is preset to disable the tappet 226 and at the same time swing tappet ear 260 into .a position one letter space ,in .advance of tappet 24|. After the'typing of the amount in the third column, the carriage remains at rest and may be tabulated to the desired indicated vertical line by either one or two operations of the left-hand tabulator key |25. At one of these two vertical lines a single character is required to be typed. The carriage is stepped to the last column in the usual manner, i. e., by depression of tabulator key |26. In this column a single digit is usually typed and this is followed by an automatic carriage return when ear 26 .rocks carriage return slide 22|. Rarely, it is desired to print a second digit in the fourth column and this may be done by the rapid operation of the two desired keys to cause both characters to print before the carriage return drive starts the Acarriage 22 in the return direction.

What is claimed is:

1. In a typewriter having a plurality of type actuating means, a plurality of phrase keys, a plurality of shafts, one for each said phrase key, a driving member associated with each said shaft, means controlled by each said phrase key for connecting one of said shafts to its driving member, said means including control linkages less in number than the number of said keys or shafts, a plurality of cams on each shaft, means common to said shafts and operated by said cams, a connection between each said common means and each type actuating means, a carriage on said typewriter, a tabulating mechanism for said carriage, and means operated by certain of said cams for controlling the operation of said tabulating mechanism.

2. In a typewriter having a traveling carriage and a plurality of type actuating means, the combination of a plurality of word keys, a clutch engageable by each word key, a shaft driven thereby, a plurality of members, each said member being common to all of said shafts, means on each of said shafts to operate certain of said members, individual connections between said members and said type actuating means, means operable to release said carriage for tabulation, means common to said shafts to operate said operable means, and means on at least certain of said shafts to operate said common means and thereby to operate said operable means for a tabulation of the carriage.

3. In a typewriter having a plurality of type actuating means, the combination of a plurality of word keys, a plurality of normally open clutches, one for each Word key, a shaft .driven by each clutch when such clutch isclosed, cam means on said shaft, means operated by said cam means and connected to certain of said type actuating means for operation thereof, a member common to a pair of said work keys and to va pair of said clutches, means to centralize said member, means operated by one of said pair of word keys to move said member in one direction and operated by the other word key of said pair to move said member in the opposite direction, and an element on said member to cause closure of one or the other of the related pair of clutches depending upon the direction of movementof said member from its central position.

1l. In a typewriter having a, plurality of type actuating means, the combination of a plurality of word keys, a .plurality .of vnormally open clutches, one for each Word key, a shaftl driven by each clutch when closed, cam -means on said shaft, means operated by Asaid cam means yand connected to certain V.of said typeV operating means for operation thereof, a member common to a pair of said word keys and to a pair of said clutches, means to centralise said member, means operated by one of said pair of word keys to move said member in one direction and operated by the other word key of said pair to move said member in the opposite direction, an element on said member in control over the related pair of clutches and causing closure of one or the other of said clutches depending upon the direction of movement of said member from itsl central position, a traveling carriage, tabulating mechanism to release said carriage for movement to a new position, an element operable to cause an operation of said tabulating mechanism, means common to said shafts to operate said element, and cam means on at least certain of said shafts to operate said common means.

5. In a typewriter having a carriage, means to urge said carriage in one direction, escapement means to normally hold said carriage against the force of said urging means, tabulating means including a plurality of tabulator keys to release said carriage from the restraint of said escapement means, projectable stops to arrest said carriage at desired points, a shiftable member operated by said tabulating means, said shiftable member being normally positioned for operation to project one of said stops, and means operated by only one of said tabulator keys to shift said shiftable member to another position in which said shiftable member, when operated by said releasing means, will project only said second stop.

6. In a typewriting machine having power operating devices, a spring-urged carriage, advanceable under control of a letter-feed escapement or alternatively by tabulation, and returnable by said power operating devices, keys for controlling carriage tabulation to respectively different typing stations, means under control of one key for automatically tabulating the carriage to one of said stations and automatically typing there, means normally conditioned to initiate automatically a power return of the carriage responsive to said automatic typing at said station, means under control of another of said keys for conditioning said carriage-return-initiating means for responsiveness to typing at a second typing station instead of to typing at the first station and for tabulating the carriage in a run past the first station to said second station, and means effective consequential to the automatic initiation of the return of the carriage from said second typing station to condition said instituting means for automatic return of the carriage responsive again to typing at said rst station.

7. In a typewriting machine having power operating devices, a spring-urged carriage, advanceable under control of a letter-feed escapement or alternatively by tabulation, and returnable by said power operating devices, keys for controlling carriage tabulation to respectively different typing stations, means under control of one key for automatically tabulating the carriage to one of said stations and automatically typing there, means normally conditioned to initiate automatically a power return of the carriage responsive to said automatic typing at said station, and means under control of another of said keys for conditioning said carriage-returninitiating means for responsiveness to typing at a second typing station instead of to typing at the first station and for tabulating the carriage in a run past the first station to said second station.

8. The combination with a typewriting machine having a series of character types and elements selectively operable to cause individual impressions by said types. of a plurality of devices operable individually to effect operations of said elements in predetermined sequences for the typing of predetermined character sequences, a control key related to each of said devices and remote thereto, and means under control of said keys to institute in response to an operation of every specific one of said keys an operation of a specific one of said devices, said instituting means comprising, control train means leading from said keys to said devices but numbering less than said keys or said devices, means for said keys to operate differentially said control train means in as many variations as the number of said keys, and means responsive tc each varying differential operation of said control train means to operate one of said devices.

9. The combination with a typewriting ma chine having a series of character types and elements selectively operable to cause individual impressions by said types, of at least two devices operable individually to effect operations of said elements in predetermined sequences for the typing of predetermined character sequences, a control key related to each one of said two devices and located remote thereto, and means under control of said keys t0 institute in response to an operation of each of said keys an operation of a specific one of said devices, comprising, a single control train intermediate the two keys and said devices, means to operate said control train differently by each of said keys, and means responsive to each of the different operations of said control train to operate one particular one of said devices.

10. The combination with a typewriting machine having a series 0f character types and elements selectively operable to cause individual impressions by said types, of two devices operable individually to effect operations of said elements in predetermined sequences for the typing of predetermined character sequences, a specific control key related to each one of said two dcvices and remote thereto, and means under control of said keys to institute in response to an operation of each of said keys an operation of a specic one of said devices, comprising, a single control train intermediate the two keys and said devices, means for said two keys to operate said control train in opposite directions, and means responsive to opposite directional operations of said control train to operate one or the other of said devices.

1l. The combination with a typewriting machine having a series of character types and elements selectively operable to cause individual impressions by said types, a plurality of parallel rotors having tappets to cause operation of certain of said elements in specic sequences, drive means for said rotors, normally open clutches between said rotors and said drive means, a control key for each clutch at a location remote thereto, and means to close said clutches selectively under control of said keys, comprising, control train means intermediate said keys and said clutches numbering less than said keys or said clutches, means for said keys to operate differentially said control train means in as many variations as there are clutches, and means responsive to each varying differential operation of said control train means to close a particular one of said clutches.

12. In a typewriting machine having a carriage movable on a frame oppositely in an advance direction and in a return direction, normally incapacitated power return means for the car'- riage, means to capacitate automatically said power return means under carriage control normally at the advance of the carriage to a certain position and including means settable to an abnormal condition to capacitate said power return means automatically at the advance of the carriage to another position instead of at advance to said certain position, tabulating means operable to one state to tabulate the carriage in advance direction to one station and operable to another state to tabulate the carriage in advance direction in an uninterrupted run past said one station to another station, diierentially operable control means for said tabulating means, means responsive to said control means at one diierential operation thereof to operate said tabulating means to said one state, and means responsive to said control means at another diierential operation thereof to Operate said tabulating means to said other state and at the same time to set said settable means to said abnormal condition for capacitation of said power return means automatically at advance of the carriage to said other position.

13. The invention set forth in claim 12, and

means to restore said settable means from abnormal to normal condition incidental to the capacitation of the power return means.

14. In a typewriting machine having a carriage movable on a frame oppositely in an advance direction and in a return direction, normally incapacitated power return means for the carriage, means to capacitate automatically said power return means under carriage control normally at the advance of the carriage to a certain position and including means settable to an abnormal condition to capacitate said power return means automatically at the advance of the carriage to another position instead of at advance to said certain position, tabulating means operable to one state to tabulate the carriage in advance direction to one station and operable to another state to tabulate it in advance direcion in an unint rrupted run past said one station to another station, at least two control means for said tabulating means, means responsive to one of said control means to operate said tabulating means to said one state, and means responsive to another of said control means to operate said tabulating means to said other state and at the same time to set said settable means to said abnormal ccndition for capacitation of said power return means automatically at advance of the carriage to said other position.

15. In a typewriting machine having a carriage movable oppositely in a tabulating direction and in a return direction7 normally incapacitated power return means for the carriage, means to capacitate said carriage return means under carriage control for a run of the carriage to a returned position, comprising, two carriage return instituting tappets on the carriage deiining two different return institutin points, and tappetengageable-means on the frame normally in cooperative range with one of said tappets and mounted for movement to an abnormal position to place it out of cooperative range with the said one tappet and into cooperative range with the other tappet, and means to tabulate the carriage selectively either to one station or in an uninterrupted run past said one station to another station, comprising, two stop members selectively projectable into tabulation controlling positions for selectively tabulating said carriage to the said positions, a plurality of tabulation instituting elements, and means responsive to operation of one of said elements to project one of said stop members, and responsive to operation of said other element to project the other stop member and also to move said tappet-engageable-means to its abnormal position.

16. The invention set forth inA claim 15, and means to hold said tappet-engageable-means in abnormal position at least until the power return means has been capacitated.

17. In a typewriting machine having a carriage movable oppositely in a tabulating direction and in a return direction, normally incapacitated power return means for the carriage, means to capacitate said carriage return means under carriage control for a run of the carriage to a returned position, comprising, two carriage return instituting tappets on the carriage dening two different return instituting points, and tappetengageable-means on the frame normally in cooperative range with one of said tap-pets and mounted for movement to an abnormal position to place it out of cooperative range with the said one tappet and into cooperative range with the other tappet, tabulating means for said carriage, comprising, two individually projectable stop members, two tabulation instituting elements, a single power means to project either of said stop members, means operatively coupling normally said power means only with one of said stop members and being shiftable to couple operatively the power means with the other stop member instead, means responsive to only one of said tabulation instituting elements to shift said coupling means and to move said tappet-engageable-means to its abnormal position, and means responsive to operation of either of said tabulation instituting elements to activate said power means, the shift of said coupling means preceding activation of the power means.

18. In a typewriter having a travelling carriage movable in tabulating and return directions, means to release said carriage for tabulation, a plurality of tabulator keys to operate said carriage releasing means, two stops individually projectable for tabulating control into the path of travel of the carriage, means operated by said carriage releasing means to project one of said stops in response to operation of one of said tabulator keys, means operated by another of said tabulator keys to control said projecting means to project the other stop instead, power means to return said carriage to a starting position, mechanism to control operation of said power means and including a member rockable in a direction parallel to the carriage to render the power means effective, said member being also displaceable transversely of the carriage from one to another position, a plurality of tappets on the carriage to rock said member for rendering said power means effective, one of said tappets being engageable by said member in each of its different transverse positions, and means controlled by one of said tabulator keys to displace said member from said one to said other position, out of the path of one tappet and into the path of another tappet.

v19. The invention set forth in claim 18, and

, means to hold said member'in said other trans,-

verse position, until rocked by a tappet to render the power means eiective.

20. In a typewriting machine having a carriage movable on a frame oppositely in an advance direction and in a return direction, normally incapacit-ated vpower return means for the carriage, means to capacitate automatically said power' return means under carriage control normally at advance of the carriage to a certain position and including means settable from a normal to an abnormal condition to capacitate said power return means automatically at advance of the carriage to another position instead of at advance of the carriage to said certain position, and including other means settable from a normal to an abnormal condition to capacitate said power return means automatically at advance of the carriage only to a third position which is intermediate the two before stated positions, and regardless of the condition of the first said settable means, means to tabulate the carriage in said advance direction, operable to one state to tabulate the carriage to one station, and operable to another state to tabulate the carriage in an uninterrupted run past said one station to another' station, at least two control means for said tabulating means, and means responsive to one of said control means to operate said tabulating means to said one state, and responsive to another of said control means to operate said tabulating means to said other state and at the same time to set the rst said settable means to the said abnormal condition, wherefore if both settable means are left in normal condition there Will ensue an automatic return oi the carriage at advance to said certain position, and wherefore if said other settable means is in abnormal condition there will ensue an automatic ret" ci the carriageat itsiadvance to said third. position.

21. In actypewriting machine having a carriage movable oppositely in a tabulating direction and in a return direction, normally incapacitated power return means for the carriage, means to capacitate said carriage. return means under carriage control, comprising, two carriage return instituting tappets on the carriage dening two diierent return instituting points, and tappet-engageable-means on the frame normally in cooperative range with one of said tappets and mounted for movement to an abnormal position to place it out of cooperative range with the said one tappet and into cooperative range with the other tappet, means to tabulate the carriage in advance direction and comprising a plurality of tabulation instituting elements, means responsive t0 operation of one of said elements to move said tappet-engageable-means to its abnormal i position, a normally incapacitated third return instituting tappet on the carriage at a point intermediate the return instituting points dened by the other of said tappets, and settable means to capacitate said third tappet and concomitantly to incapacitate said other two tappets.

22. In a typewriting machine having a carriage, tabulating means for said carriage, comprising, two individually projectable stop members, two tabulation instituting elements, a single power means to project either of said stop members, means operatively coupling normally said power means only with one of said stop members and being movable to an abnormal position to couple operatively the power means with the other stop member instead, means operable by only one of said tabulation instituting elements to move said connecting means to said 24 abnormal position. and means responsive to operation of either of said tabulation instituting elements to activate said power means, said movement of said coupling means preceding the activation of the power means.

23. For use with a typewriting machine having a series of elements arranged in a row which are individually operable for selective operations of types, a plurality of elongate members mounted endwise displaceably, parallel to each other, in a straight row for individually operating said elements, a plurality of operators individually adapted to be called into operation, extending all crosswise of said members and spaced from each other lengthwise of the latter, and means for the 'different operators to operata said members in certain predetermined sequential orders for the typing of certain difference character sequences.

24. The combination with a. typewriting ma chine having a series of character types and a series of elements which are selectively operable to cause selectively impressions by said types; of 'a plurality of rotors lying parallel to each other substantially in a common plane, a plurality of slides extending transversely of said rotors generally in a plane parallel to the plane in which said rotors lie and spaced axially of said rotors, means operatively connecting each of said slides with one of said elements for operating the latter, tappet means arranged on the various rotors for each of said rotors at rotation thereof to operate certain of said slides in a specific sequence representing a desired sequence of characters t0 be typed, and means including power drive means to rotate said rotors selectively, Whereby at rotation of each rotor a different character sequence is typed.

25. For use with a typewriting machine having a series of character types and a series of elements which are selectively operable to cause selectively impressions by said types; a unitary attachment, comprising, a plurality of rotors arranged parallel to each other generally in asingle plane, bearing means for said rotors, a plurality of slides extending transversely of said rotors in a plane substantially parallel to the plane in which said rotors lie, and spaced from one another axially of said rotors, means for displaceably guiding said slides, tappet means arranged on the various rotors to displace transitorily certain of said slides in specific sequential orders representing desired sequences of characters to be typed, and means connecting said bearing means and said guiding means into a unitary structure for ready attachment to a typewriting machine.

ARTHUR H. SHARPE.

REFERENCES CITED The following references are of record in the nie of this patent:

UNITED STATES PATENTS Number Name Date 1,124,378 Yaw Jan. 12, 1915 1,208,640 Pillings Dec. 12, 1916 1,238,919 Hoyt Sept. 4, 1917 2,216,634 Sundstrand Oct. 1, 1940 2,278,724 Mann -Apr. 7, 1942 2,387,078 Kurowski Oct, 15, 1945

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