US1769624A - Automatic typewriter - Google Patents

Description

y 1930. K. D. EVANS AUTOMATIC TYPEWRITER Filed June 12, 1926 7 Sheets-Sheet g i N \N k.

July 1, 1930. EVANS 1,769,624

AUTOMATI C TYPEWRITER Filed June 12, 1926 7 Sheets-Sheet 2 WWW July 1, 1930.

K. D. EVANS AUTOMATIC TYPEWRITER 7 Shee ts-Sheet Filed June 12, 1926 July 1, 1930. K D EVANS AUTOMATI C TYPEWRITER Filed June 12, 1926 7 Sheets-Sheet 4 4 l l I glwueflto t y 1930- K. D. EVANS AUTOMATIC TYPEWRITER FiledJune 12, 1926 7 Sheets-Sheet 5 lnuen July 1, K. D. EVANS AUTOMATIC TYPEWRITER 7 Shee'ts-Sheet 6 Filed June 12, 1926 y 1930. K. D. EVANS AUTOMATIC TYPEWRITER Filed June 12, 1926 7 Sheets-Sheet Patented July 1, 1930 "UNITED STATES PATENT OFFICE.

KELLEY D. EVAN S, 01 HAMILTON, OHIO, ASSIGNOR OF ONE-HALF TO 0. E. HOOVER, OF

HAMILTON, OHIO AUTOMATIC TYPEWRITER Application filed June 12,

' This invention relates to automatic typewriters and particularly to that type of au tomatic typewriters controlled by a record sheet or strip having perforations which select the keys to be actuated and permit suitable parts or members connected with the key levers of the keyboard to be moved into the path of a motor driven actuator which depresses the keys and actuates the type bars.

The present invention embodies numerous improvements in the general type of machines specified above, one of the objects of the invention being to avoid the actuation of the keys during the normal operation of the machine when controlled by the perforated record sheet.

A further object is to provide eificientand practical means whereby the motor driven actuator causes the operation of the type bars whether the selection occurs through the perforated record sheet or by the manual depression of the keys corresponding to such type bars. In other words it is one of the objects to provide a typewriter of the auto matic type wherein the type bars are brought into operative relationship with the actuator whether through the medium of the record sheet or through the actuation of the keys, so that in both instances the type bars will be actuated by a motor driven part, and in both instances the printed impressions will be exactly the same in appearance, thus making it possible for the operator to stop the feed of the record sheet at any point and to insert in the communication being written matter not covered by the record sheet without changing to the slightest degree the'appearance of the typewritten matter.

The above and other objects are attained by my invention which may be here briefly summarized as consisting, in certain novel details of construction and combinations and arrangements of parts which will be de- 1 scribed in the specification and set forth in the appended claims.

In the accompanying sheets of drawings wherein I have shown an embodiment of my invention which operates very eifective 9 1y, Fig.-1 is a rear view of my improved 1926. Serial No. 115,659. I

automatic typewriter, this view and at least part of the views to be referred to, either omitting or showing conventionally certain parts unessential to the invention, and which are commonly employed on typewriters; Fig. 2 is a horizontal sectional view substantially along the irregular line 2-2 of Fig. 3; Fig. 3 is a vertical transverse sectional view; Fig. 4 is a similar View but looking in the opposite direction; Fig. 5 is a fragmentary sectional view showing some of the parts of Fig. 3 but with an actuating lever associated with the type bar illustrated in Fig. 3 moved to a position where it is about to be rocked or actuated by the motor operated actuator, the selection having been brought about by the perforated record sheet; Fig. 6 is a similar view with a few additional parts shown and with the type bar thrown to printing position, this view showing the relative positions which the parts occupy at the end of the actuating movement through the selection brought about by the perforated record sheet; Fig. 7 is a similar view but omitting part of the elements shown in Fig. 6 showing how the actuating lever may be'actuated when the selection is made through the manual depression of the key associated with the type bar instead of through the perforated record sheet; Fig. 8 is an end view of the machine looking toward the right hand end of Fig. 1, parts being shown in section; Fig. 9 is a rear view omitting some of the parts and some being in section and broken away to illustrate the structure at the top of the machine omitted from Fig. 1; Figs. 10 and 11 are respectively, a vertical sectional view and a horizontal sectional view showing certain details for the actuation of the pawl employed in spacing the carriage.

Referring now to the drawings, my improved typewriter includes a frame 10 at the front of which is a keyboard corresponding to the keyboard of an ordinary typewriter, a few of the key levers being illustrated at 11. These key levers are pivoted on a crossrod 12 supported by frame 10 and swing in the slots of a comb 18. Each key lever has a downward extension 14 terminating in a forwardly projecting part 15, the downward extension having connected to it a spring 16 connected to a spring bar 17 extending across the front part of the frame 10, the

fulcrum wire 19 (Fig. 10) mounted in the customary slotted segment 20, and when the type bar is swung to printing position itv enters the usual guide indicated 'at 21. have indicated the platen conventionally at 22, but have-not illustrated the carriage which supports the platen as this may be of suitable or usual form. However, portions of the carriage frame are illustrated at 22*- and this frame will be referredto later.

It will be observed that there is no direct connection between the keylevers and the type bars. is connected by a pin and slot connection with a sub-link 23, the sub-links for all the different type; bars being fulcrumed on a wire or rod 24 (Fig. 3) extending transversely across the machine in a slot of a forwardly facing comb-25. Each sub-link has a forwardly and upwardly inclined slotted portion 26 engaged by a pin 27 of an actuating .member 28, heretofore termed the actuating lever, one of which is provided for each of the different key levers'of the keyboard. i

The different; actuating levers 28 are arranged side by side and are spaced apart by the teeth of front and rear combs 29 and 30 (Fig. 3), and all of these'actuating levers are independently capable of a slight sliding movement to bring them into the path -of the motor driven actuator (53 to be described later), and of a rocking movement to shift the sub-links 23 which in turn actuate the type bars 18 as explained above.

The rocking movement of the actuating levers 28 occurs about a stationary fulcrum shaft or bar 31, which extends across the frame of the machine and which engages in slots 32 on the lower sides of the actuating levers. The latter are supported by the fulcrum shaft 31 and by a cross-bar 33-forming a part of comb 30, and they are normally held in the position illustrated in Fig.3, at which'time the rear portions of the actuating levers rest on the cross-bar'33, by springs 34 connected to the upper rear portions of the actuating levers and to a rear spring-bar 35.

At the upper forward part of each'a'ctuating lever is an extension 36 which, when the actuating lever is in the position illustrated in Fig. 3, is normally out of the path of the motor driven actuator, but which when the actuating lever is slid forwardly bar to printing position.

On the other hand each type bar either through the selection by the record sheet or by depression of the corresponding key lever, comes into the path of the actuator and is rocked to the position shown in Fig. 6 so as to swing the corresponding type A d lit-ion al ly, the actuating lever is'pro vided at its rear end with a spring actuated pin 37, which as will be explained, is normally held in upper or, retracted position by the unporforatod part of the record shoot but is permitted to be lowered by a pin spring 38 (Fig. 4) when a perforation of the record sheet comes under the pin, Similarly the front end of the actuating lever has a spring actuated pin 39 which is normally held. rctractcdby the for ward extension 15 of the corresponding key lever 11, but this pin is adapted to be moved upwardly under the action of the pin spring 40 (Fig. 6) when the key lever is depressed bringing a slot 41 opposite the pin 39 (Fig. 7). i i

The perforated record sheet which I ropose to employ in my improved mac ine,

may be exactly similar to those which have been used for a great many years on the socalled Hooven Automatic Typewriters, a record sheet of this gei'icral type being illus tratcd conventionally in Pillings Patent No. 1,175,986 and it may be lormed or produced by a perforating machine such as illustrated in the Pillings patent above Inentionedor in the hIcCall Patents No. 1,048,560 and No. 1,083,290. This perforated sheet is generally endless and is provided along its margins with perforations adapted tobc engaged by the teeth of the feeding sprockets, and between the sprocket perforations the sheet is provided with actuating perforations which in this instance when they come beneath the spring pins 37 permit the latter to drop into them so that the actuating levers 28 will be shifted in the manner hereinafter more fully explained.

In Figs. 3 and 4 of the drawings the record sheet is indicated at 42, this shcet being adapted to travel over a shie d 43 which extends across the lower rear part of the machine, as illustrated in the drawings.

This shield is preferably formed of two pieces of properly shaped sheet metal and its upper part is cylindrical, there being between the picccs forming theshicld a slot -14 which extends the full length of the shield and is directly beneath the rear pins 37 of lever will be moved forwardly.

oscillating bar, the corresponding actuating The bar 45 is supported on a shaft 46 extending centrally through the upper part of the shield and supported in the side members of 'the frame 10. .Fixed to this shaft are sprocket wheels 47 which feed the perforated record sheet-42,.one of the sprocket wheels being rovided with a ratchet wheel 48 adapt. to be operated by a pawl 49 (Fig.

.3 hereinafter described so that the record sheetwill be given a step-by-step movement.

It might'be here stated that one end of shaft 46 is journalled in one of the side members-of frame'lO, as indicated in Fig. 2, but the other endis journalled in an upstanding supporting arm 46 which is in the plane of the opposite side of frame 10,,this arm being at the free end of a horizontal arm 46 extending across beneath shaft-46 from the first mentioned side of frame 10, as indicated in Fig. 4. The free end of arm 46 and of the upright supporting arm 46 'lie in r a slot or opening 46 extending up from the bottom of-the adjacent side of frame 10, as indicated in Figs. 2,4 and 8. This forms virtually an open-ended support for shaft 46 and its associated parts, making it possible to slip an endless record sheet inwardly from the side having opening 46 over sprockets 47' and shield 43. i

. The rear oscillating bar 45 which is adapted to'engage the rear spring pins 37 is one of two simultaneously moving oscillating bars, the other beingillustrated at 50, this oscillating bar being adapted to engage the front spring pins 39 of the actuating levers 28 when the latter are moved up- I wardly through the slots 41 of the key lever extensions 15 when the key levels are depressed so that this front oscillating bar may move the actuating levers forwardly by engaging the front spring pins 39 in the same manner that the rear oscillating bar 45 may move the actuating levers by engaging the rear spring pins 37. This bar is supported by arms 51 secured to a rock shaft 52 which extends across the lower front ortion of the machine; and is journalled in the sides of the frame'lO.

It 'was heretofore explained that when an actuating lever 28 is moved forwardly the frontupward extension 36 is moved into" the path. of'a motor driven actuator so as to rock the actuating levers about the fulcrum shaft" 31 and thus swing the type bars to printing position, it being understood that when the actuating levers 28 are in their normal rear positions they are not engaged by the actuator. This actuator is in the form of a bar 53 which extends across the upper front part of the machine and is supported by two arms 54 secured to a rock shaft 55 which extends across the machine and is journalled in the sides of the frame 10.

' The bars 45 and 50 which move the actuating levers 28 forwardly have substantially a horizontal oscillatory motion, while the motor driven actuator 53 which rocks the actuating levers 28 has a substantially vertical oscillatory motion.

The main drive shaft of the machine is shown at 56. This shaft is rotated by a motor which may be located at any suitable point but in this instance is shown conventionally at 57 and as illustrated is supported inside the frame 10 and has a shaft 58 connected to .the shaft 56 by spiral gears 59 or other suitable form of speed reducing ears.

This shaft 56 which rotatesv continuously as long as the machine is in operation, is provided near one end with two eccentrics 60 and 61 (Figs. 3 and 9) which are secured to the shaft in fixed relation to each other,

.one being preferably 90 in advance of the One of. these eccentrics actuates the two horizontally oscillating bars 45 and 50 other.

rock shaft 52, whichactuates the front oscillating bar 50.

The arm 62 carries the pawl 49 which engages one of the sprockets, 48 which are secured to a shaft 46 and which actuate the record sheet. During normal operation on each rear-stroke of arm 62 the two oscillating bars 45 and 5() swing forwardly and coincidentally the record sheet is moved forwardly one step. 3 However, it is generally the case that when the typewriting is done 1 through the actuation of the key levers 11,

it is desired .that the record sheet be stationary and accordingly provision is made for rendering inoperative the pawl and ratchet mechanism which \feeds the record sheet. This is accomplished in this instance, by a short bell-crank lever 67 3) which when rockedfrom normal position is adapted to'move the pawl 49 downwardly so as to be clear of the teeth of ratchet 49.

This bell-crank lever may be operated in any suitable manner as by a rod 68 which may extend forwardly to the front of the machine where it may be shifted by a key or other means within the convenient reach of the operator. It will be understood, of course, that by disengaging the pawl 49 from the ratchet 48 while the feed of the record sheet is stopped, the remaining parts of the machine continue to operate, this being essential-because of the fact that with ardly into the path of the oscillating bar of the arrangement of the eccentrics 60 and 61 as described, the actuator 53 is swung downwardly immediately after the bars 45 and 50 are swung forwardly so that in the event a perforation of the record sheet has permitted the rear spring pin 37 of any particular actuating lever 28 to move down- .45, or in the event a key lever 11 has been depressed so as to' permitthe front spring pin 39 of the corresponding actuating lever 2 28 to spring upwardly in front of the front oscillating bar 50, the actuating lever is first moved forwardly from the position shown in Figs.' 3 and 4 to the position shown in Fig. 5, so that the upward extension' 36 of the actuating lever is in the path of the actuator 53, and then the actuator engages said extension of the actuating lever swinging the latter to the position shown in Fig. '6, causing the-type bar' to be swung to printing position, or from the position shown in Fig. 5 to the position shown in Fig. 6.

As soon as the actuating lever is rocked -to the position stated above causing the printing impression to be made, the spring pin 37 or the spring pin 39 as the case may be, is released from the corresponding oscil lating bar 45 or 50, whereupon the actuating lever 28 is restored to its former position and the extension 36 thereof slidesback from beneath the engaging lower surface of the actuator 53 by the action of spring 34:, the type bar coincidently dropping back onto its support. The return of these parts to their normal positions takes place quickly enough to permit the quick duplication of the'operation even with the same actuating lever and type bar. 7

It might be here mentioned that the rock shaft 55, to which the actuator 53 is attached, is instrumental in the performance of another function, i. e. the step-by-step feeding or spacing of the carriage following each printing.impression, and in thls connection it will ,be recalled that in the early partof the specification it was stated that the feed of the carriage and the movements thereof.

for tabulations or indentations and for its return, are done positively through motor actuated means,v and this mechanism will now be described." v

The carriage frame 22, portions of which only are shown, (the carriage itself being omitted as it forms 'nopart of the present invention) is slidably mounted on two wayrods and 71. Though the particular gear members herein illustrated for imparting the extends inwardly into the spiral groove.

This nut consists of a sleeve having at one end a gear and at its other end a ratchet wheel 76. This ratchet wheel is adapted to be engaged by a pawl 7 6 (Fig. 3) pivotally mounted at the upper end of an'arm 77 secured to rock shaft 55 which, as previously explained, is rocked back and forth with the oscillations imparted to the motor driven actuator 53. The pawl is pressed upward by a spring 76* shown in Fig. 4. The manner in which this pawl is'controlledso that it causes the carriage to feed one step immediately after a printing impression is made will be explained hereinafter.

The gear 75 is engaged by a gear 78 carried by a sleeve 79 pinned, or otherwise secured to 'a shaft 80 which is motor driven in a manner to be explained presently. The sleeve is preferably provided with a fairly deep groove 81 (Fig. 1) to permit the actuation of and to guide the pawl 76. This shaft 80 has its outer end mounted in a suitable bearing in one side of frame 10 and its inner end is journalled-in a frame 82', the base of which extends down to and is suitably secured to the cross bar forming a part of comb 25. At its upper end this frame 82 has a pair of spaced arms 82 located on opposite sides of the nut'i'et and of the gear 78 with its sleeve 79 and forming the inner bearings for shaft 80 and also serving to hold the nut 7 4 against endwise movement on the spirally grooved shaft 73 of the carriage. It will be observed fromFigs. 1 and 3 that the lower portion of the frame 82 is curved over rock shaft 55 and that the arm 77 which actuates the pawl 76 extends through a slot in this frame.

The shaft 80 near its outer end is connected by bevel gearing 83 to .a diagonall .disposed shaft 84: provided at its lower en with a bevel gear 85 adapted to be en aged by either of two bevel gears 86 and 8 splined to the main driving shaft 56 and through the medium of which shafts 84 and. 80 may be rotated in either direction so as to rotate the nut 7i in either direction and move the carmove the gears, 86 and.87 into and out. of

. two actuating levers 28f and 28 which are side or the other of disk 92 holds the gear similar to the actuating levers 28 associated with the printing key levers, and are mounted. and have movements or are actuated in precisely the same way as "the actuating levers associated with the printing key levers, being selectively controlled either by the perforated record sheet or by the depressing of two shift keys carried by the key levers forming a part of the regular keyboard equipment. These two actuating levers L8 and '28 differ from the main actuating levers 28 in the respect that their forward ends are connected by links 91 (Figs. 1 and 9) to the two shifters 89 and 90, the arrangement being such that when either actuating lever 28 or 28 is rocked, the corresponding bevel gear 86 or 87 is moved into engagement with the bevel gear 85.

The gear 87 is utilized for the carriage return and the gear 86 for moving the carriage for indenting or tabulating purposes.

"Vhen the gear 87 is shifted by the actuating lever 28 into engagement with the gear 85 in order to return the carriage, it is held in driving engagement with gear 85 until the carriage is given its full return movement. This is accomplished in this instance by providing on the end of the sleeve forming a part of gear 87 a disk 92 (Fig. 9) having its periphery beveled in opposite directions and engaged by a so-called spring point 93 which by engaging one beveled 87 in'either engaged or disengaged position. The gear 87 isautomatically disengaged when the carriage is returned to the desired position -by a releasing lever 94 which extends up alongside of the frame and has its lower end forked and in engagement with the sleeve carrying gear 87 whileits upper end is behind the head 95 on the end of rod 71 which is one of the two rods on which 3 the carriage frame is supported, and which corresponds .to the so-called typewriter front rod of ordinary typewriters, this rod carrying an adjustable stop 97 which can be positioned by the usual means wherever desired and is adapted to be engaged by a shoulder 98 (Figs. 4 and 8) carried by the carriage frame. The rod 71, unlike the corresponding rod in the usual'typewriter construction, is capable of a slight endwise movement, being normally held in one extreme position by a spring 99 (Figs. 1 and 9) engaging-the head 95. \Vhen the shoulder 98 of the carriage engages the adjustable stop 97, the rod 71 is shifted endwise (against spring 99) sufiiciently to rock lever 94 far enough to cause the disk 92 to pass the spring point, in which event the gear 86 is disengaged from the gear 85 and is held in disengaged osition.

The gear 86 used or tabulating or identing purposes is held in engagement with gear 85 until automatically released by the following means: The rear end of the actuating lever 28 which as before explained shifts the gear: 86 into engagement with gear 85, is provided with anupstanding rod 100 (Figs; 8 and 9) connected to a pin 101 (Fig. 9) of the tabulating frame 102 which is adapted to rock back and forth on the main frame .10 of the machine, but unlike the tabulatingframe of ordinary. typewriters, is capable of slight endwise movement on the main frame. The function of the rod 100 connected to pin 101 of the tabulating frame is to swing it inwardly and when this occurs the frame is held in its inward position by reason of the fact that a pin 103 (Figs. 8 and 9) carried by the tabulating frame is by theinward movement carried slightly above a'locking plate 104, and when the pin passes above the locking plate the tabulating frame is moved slightly in endwise direction b a spring 105 (Fig. 9) surrounding one o the pivots for the frame.. This carries the pin over the locking plate which is therefore held in spring 105) sufficiently far that the pin 103 is carried past the locking plate 104, in which event the tabulating frame again swings outward under the action of spring 108 causing gear 86 to be disengaged from ear 85.

of the record sheet or the manual depression of a carriage shift-key causes the actuator 53 to rock actuating lever 28 so as to cause gear 86 to be moved into engagement with gear 85, and that it will be held I Thus it will be seen that a perforation ton.

motor, gear 87 being held in engagement with gear 85 until the carriage is returned oint determined by the position of the a justable stop of the front rod' 71 of the main frame which then causes the disengagement of gear 87 from gear 85.

It is tobe understood that normally gear 85 is disengaged from both gears 86 and 87 and it is only when the tabulating or return ,moves it forward one step, the nut 74: as awhole is rotated through one step sufficient to space the carriage frame. During this movement of the nut the gears 7 5,78, shaft 80, gears 83 and shaft 84: with its gear 85,

turn idly.

Inasmuch as the rock shaft 85 is rocked by one of the arms supporting the actuator 53 and bythe arm 69 actuated by the cocentric on the main motor driven shaft 56, it is obviousthat the'pa'wl' 7 6 is given one forward stroke during each revolution of shaft 56, this stroke occurring immediately after the type bar has been swungto printing position and during the return or upward stroke ofthe actuator 53. However, it is desirable, and in fact necessary, both when the selectionoccurs by the perforated record sheet orbythe manual depression of the key levers, :that the spacing movements be impartedto the ratchet wheel 76 only after printing impressions are made, regardless of the rate these impressions are made with respect to the rotation of the motor driven shaft 56 except for the spacing between words which is taken care of by a third special actuating lever here designated 28 which is similar in its mounting and manner of movement to the actuating levers 28 which actuate the type bars and the two previously mentioned special actuating levers-28 and '28".

In order that the step-by-step feeding movements imparted to the ratchet wheel 76 may be caused to occur only after each printing operation and for each word spacing, a control mechanismfor the pawl 7 6 is employed, and in carrying out this part of my invention I utilize the so-c'alled universal bar commonly employed on typewriters, but with new functions to be performed by it. This universal bar includes the arcshaped piece 109, this member as customary lying in a slot on the rear of the slotted segment 20 in position to be engaged and moved rearwardly by each type bar 18 as it is swung upwardly to printin position. From this piece extend rearwarfly (Fig. 11) which are connected to the upstanding arms 111 of a lever 112 (Figs. 1, 3 and 6) pivotally supported on the rear part of frame 82, a spring '113 (Fig. 3) being attached to the lever to hold these parts in their forwardmost positions with the arcshaped member 109 in the slot on the rear' side of the slotted segment 20. The airrangement is such that on each actuation of any type bar this universal bar is moved rearwardly as in ordinarywell known typewriters. I

One of the arms 110 is, in this instance, provided with a laterally extending stud 114 (Fig. 11) which normally lies over a lug 115 on pawl 76 the lug being shown in Figs. 6, 10 and 11. As longas the universal bar is in its forward or normal position and the stud overlies the lug on the pawl, the pawl is held out of engagement with the ratchet wheel 76 and therefore regardless of the number of oscillations which this pawl may have by the rocking of shaft 55 the ratchet wheel is not actuated, but when the universal bar moves rearwardly as by the actuation of a type bar the stud rides past the lug 115 on the pawl and this allows the pawl to move upwardly into engagement with the ratchet wheel so that the pawl .will on its nextrearward stroke turn the ratchet wheel one step. As the universal bar moves back or for wardly toward the front of the machine to arms 110- its-normal position, the stud passes under beneath a downwardland forward extension 116 of lever 112 (Figs. 1 and 3), this actuating lever being adapted to be shifted by the actuator 53 as before through the selection by the perforated record sheet or by the manual depression of a special shift-key or bar as may be found desirable, the key, if the same is utilized, being on a key lever such as those previously described and'designatcd 11 and serving to move thisspecial actuating lever 28 forwardly so that its front end may be shifted downwardly by the actuator in precisely the same manner as previously described for the other actuating levers. As the rear end of this actuating lever 28' is elevated it engages the extension 116 of'lever 112 and shifts the universal bar so as to release the lug 115 of pawl 76 from the stud 114 in precisely the same way as the lug is released from the stud by the action of the different type bars.

The various parts and mechanism described above for automatically and positively moving the carriage for word spacing, for tabulating purposes, and for the carriage return, are not claimed herein, but are claimed in a companion application Serial No. 289,131, filed June 21, 1928.

For elevating the platen so that the upper case letters of the type bars will be effective stroke of the actuator 53.

'for printing, the shifting mechanism ordiinto the path of movement of the actuator 53. It is not deemed-necessary, however, to

illustrate this special actuating lever as its operation will be understood by one skilled in the art.

The operation is as follows: The perforated record sheet which as. already stated is generally endless, is slipped over the sprockets 47 and shield 43 by inserting the sheet over these parts through the slot or opening 46 in one of the sides of the frame.

The motor can then be started by closing a conveniently located switch, or the motor may previously havebeen in operation and may be caused to operate the machine by throwing in a suitable clutch. The motor now driving shaft 56 swings the motor driven actuator 53 up and down and swings the oscillating members and 50. back and forth, these last two mentioned members swinging in unison, the forward motion being slightly in advance of the downward Simultaneously with the forward stroke of the oscillating members 45 and 50 the pawl 49 by its engagement with the ratchet 48, causes the sprockets and. therefore, the record sheet to be moved forwardly one step. The unperforated portion of the record sheet holds the pins 37 at the rear ends of the actuating levers 28 out of the path of movement of the rear oscillating member 45, but when a perforation comes beneath one of these pins the latter drops downwardly in front of the oscillating member causing the actuating lever which carries the pinto be moved forwardly so that the front upward extension thereof comes into the path of the downwardly moving actuator 53 which rocks the actuating lever causing the corresponding type bar to be swung to printing position. In this way the different type bars are operated automatically, it being understood that during this automatic operation thekey levers 11 are not moved since they have no mechanical connection with the actuating levers. V

As each type bar swings to printing position the pawl 76 is permitted to engage the ratchet 76 and as the actuator swings upwardly the pawl moves rearwardly turning the nut 74 one step so as to positively space the carriage one step and thereby position the platen for the next letter, it being understood that the pawl 76 is prevented from shifting the ratchet and spacing the carriage except after a printing lmpression is made and except for the word spacing, the pawl in the latter case being released by the movement of the special actuating lever 28 which brings about the release of the pawl 76 the same as is done by a type bar. Thus and ratchet mechanism causing the carriage frame and carriage to be moved laterally step bystep.

If atany time it is desired to insert matter not covered by the record sheet such as the name, address, Salutation, and the like,

or a paragraph or more in the body of the matter being written, the operator. disengages the pawl 49 so as to prevent the feed of the record sheet. The matter thus referred to is inserted by the manual operation of the key levers, but as explained in the course of' the detailed description, the depression of the key levers does not direct- .the spacing both for the letters and for the words is done positively through the pawl,

1y cause the 'type bars to be swungto printing position but on'the other hand they are actuated as before by the motor driven aetuator 53, the manual depression of any particular key lever simply permitting the spring pin at the forward end of the corresponding actuating lever'to'be elevated in front of the forward oscillating bar 50 as indicated in Fig. 7, whereupon the actuating lever is moved forwardly into the path of the actuator 53. Thatis to say, when the key is depressed, the forward motor actuated oscillating member 50 is rendered effective to shift the actuating lever 28 corresponding to that key into the path of the actuator 53 whereupon the actuating lever is rocked and the corresponding type bar is swung to printing position without any further downward movement on the part of the key or key lever since, as pointed out above, the latter has no mechanical connection with the typebar or with the actuating lever associatedtherewith.

1 It, will be seen, therefore, that I have provided what may be truly stated to be an automatic typewriter as distinguished from the application of an'automatic operating mechanism to a typewriter. Heretofore these have been marketed in the form of two units, one the typewriter andthe other the automatic operatinlg mechanism therefor. By my invention, provide the operating mechanism and typewriter in a'single 'nnit with provision for automatically operating the type bars wholly independent of and without. affecting the' keyboard, together with -means whereby. the machine can be manually operated, the effect of the depression of the 'keys being. simply to trip the actuating levers or to shift them to a position to be engaged by the motor driven actuator identically as when; the machine is operated automatically, During this manual operation the letter or word spacing is ac complished by positively moving the carriage throughthe medium of the pawl 76 in the same manner as when the selection occurs through the perforated record sheet, the operator depressing the spacing key or bar to bring about the word spacing, this be operated by the actuator.

, I As explained above, the carriage is moved ,positively for letter and word spacing by the motor actuated pawl which gives the nut 74, and therefore the carriage frame and Z carriage, a step-by-step movement. Additionally, as explained above, the indenting or tabulating and return movements are imparted to-the carriage frame and carriage, the nut74 then being rotated continuously (as distinguishing from the step-by-step movement imparted by the pawl) through the motor driven shafts and gears, the engagement of the proper gear 86 or 87 with the gear 85 being caused by the motor driven actuator 53 and controlled either by the perforated record sheet or by the manual depression of the proper key, and the gears being disengaged automatically when the carriagereaches the proper position predetermined in each instance by the position of an'adjustable stop; I

The carriage can be moved by hand in either direction, if desired, whenthe pawl 76 is disengaged from the ratchet 76 (it .being normally disengaged I as explained above). and to permit this it is onl necessary to depress asmall lever 117 whic as shown in Fig. '1, is. supported adjacent the ratchet wheel 76, this lever which is spring pressed holding in position a small detent 118 shown by dotted lines-in Fig; 6, and normally engaging the ratchet wheel 76. By depressng this lever as just stated, the detent is released sufficiently from the ratchet wheel to permit the latter to turnfreely in either direction, thus permitting the carriage frame and carriage to 'be moved by hand in either direction.

While I'have shown one construction only which practice has demonstrated answers the necessary requirements, it is obvious that the machine may be modified in many of its details and I, therefore, do not desire to be confined to the particular construction shown and described as the principle of the causingthe special actuating lever 28 to invention may be carried out in other ways. I aim, therefore, in my.claims to cover all modifications which do not. involve a departure from the spirit and scope of my invention as set .forth in the appended claims.

Having thus described my invention, I claim: K

1. An automatic typewriter comprising a unitary machine havinga typewriter keyboard, means for accommodating a perforated record sheet, type' bars individual to the different keys of said keyboard, an automatically operated constantly moving actuator for said type bars, actuating members connected to the type bars, and motor driven means controlled either through the record sheet or manually by the-actuation of said keys for shifting the actuating members into the path of the actuator to cause the actuator to operate the type bars independently of the keys.

2. An automatic typewriter comprising a unitary machine having a typewriter keyboard having keys and key levers, type bars associated with the key levers of said keyboard, means for accommodating a perforated record sheet, an automatically operated continuously moving type bar actua tor, means whereby said actuator is caused to shift the ,type bars to printing position.

shifting the keys and key levers thereof, said unitary machine having a frame in which all of said parts of the machine are supported with the keyboard at the front of the frame and the means for accommodating the perforated record slieet at the rear of the frame. 7 3. In an automatic typewriter having a typewriter keyboard, means for accommodating a perforated record sheet, type bars associated with the different keys of said keyboard, an actuating lever connected to each type bar independently of the key and key lever associated therewith, a motor operated actuator, and motor operated means cont-rolled either by the record sheet or by the manual depression of a key corresponding to a type bar for shifting the associated actuating lever into the path of the actuator so that the latter will then rock the actuating lever and cause a movement of the type bar to printing position independently of .the keyboard. I i

4. An automatic typewriter comprising a unitary machine having a typewriter keyboard with-key levers, type bars associated with the key levers, means for accommodating a perforated record sheet, actuating members connected to the different type bars, an automatically operated actuator, and motor operated means through the record sheet or through the manual operation of the keys for Sl1iftlng the actuating members so that they may be engaged by the actuator thereby creating operative connections with the type bars independently of the key levers.

5. In an automatic typewriter having 'a typewriter keyboard, type bars associated with the different keys but mechanically independent thereof, provision for accommodating a perforated record sheet, a type bar actuator, actuating members connected with the type bars and adapted tobeselectively engaged by the actuator, automatic motor operated means rendered effective by selection either through the record sheet or by the manual depression of the keys for causing the actuator to engage and shift the actuating members, and motor operated means forgiving the actuator a constant and regular motion.

6. An automatic typewriter having a typewriter keyboard, type bars'individual to the different keys but mechanically disconnected therefrom, provision for receiving a perforated record sheet, actuating members operatively connected to the type bars, an

automatic motor operated type bar actuator adapted to engage and shift said members,

, and automatic motor operated means rendered effective by selection either through the record sheet or by the manual operation of the keys for moving said members to ,a position to be engaged by the actuator.

7. In an automatic typewriter having a keyboard, type bars and provision for receiving a perforated record sheet, an automatic motor operated type bar actuator, actuating members connected to the type bars and adapted to be selectively engaged by the actuator, two motor operated devices for causing the actuator to engage and shift the actuating members, one of said devices being rendered effective through selection by the record sheet and the other by the manual depression of the keys.

8. In an automatic typewriter having a keyboard, type bars and provision for receiving a perforated record sheet, actuating members connected to the different type bars, an automatic motor operated actuator adapted to engage and shift said actuating members so, as to move the type bars to printing position, and two motor operated members one rendered effective by the record sheet and the other by the manual depression of the keys for shifting said actuating members to a position to be engaged by the actuator. 0

'9. An automatic typewriter having a typewriter keyboard, type bars individual to the different keys but mechanically disconnected therefrom, provision for receiving a controlled tory members rendered effective b perforated record sheet, a motor operated oscillatory type bar actuator, actuating members connected to the type bars and adapted to be selectively engaged by the actuator, and motor operated means ren-' dered effective by, selection through the record sheet or by the manual depression of the keys for causing the selective engagement of the actuating members by the actuator, said actuator, having a regular and constant motion. a

10. An automatic typewriter having a typewriter keyboard, type bars individual to .the different keys but mechanically disconnected therefrom, provision for receiving a perforated record sheet, a power operated type bar actuator, actuating members connected to the type bars and adapted to be selectively engaged by the actuator, oscilllat e record sheet or by the manual depresslon of the keys for causing the selective engagement and operation of the actuating members by the actuator, and means for giving said oscillatory members a regular and constant motion.

11. In an automatic typewriter having a keyboard, type bars and provision for receiving a perforated record sheet, a motor operated type bar actuator, actuatingmembers connected to the type bars and adapted to be selectively engaged by the actuator, and two oscillatory motor operated devices one rendered effective by the record sheet and the other by the manual depression of the keys for causing the actuator to selectively engage and operate the actuating members.

12. In an automatic typewriter having a keyboard, type bars individual to the different keys but mechanically disconnected therefrom and provision for receiving a perforated record sheet, actuating levers associated with the different type bars and adapted to shift the same, a motor operated actuator for rocking said levers, and motor operated oscillatory members, one rendered effective by the record sheet and the other by the manual depression of the keys for selectively controlling the engagement between the actuator and the difierent actuating levers.

13. In an automatic typewriter having a keyboard, type bars individual to the different keys but mechanically disconnected depression of the keys for causing the selective operation ofthe actuating levers by the actuator.

14. An automatic typewriter comprlsmg a unitary machine having a keyboard, type bars and provision for recelving a perforated record sheet, actuating members associated with the different type bars and adapted to shift the same, an automatic mo for operated actuator for shifting said members, to produce the printing operation, automatic. means for causing engagement between theactuator and said members, and means carried by said members for causing operative engagement between said autoatively connected to the type bars and adapted tobe engaged by the actuator, motor operated means for shifting said members,

and-spring pressed means released by the record sheet or by the manual depression of the keys for causing said motor operated means to shift the said'members so as to be engaged by the actuator.

16. In an automatic typewriter having a keyboard, type bars and provision for receiving a perforated record sheet, a motor driven actuator, actuating members operatively connected with the type bars and adapted to be shifted by the actuator, two mot-or operated devices for shifting said members into. the path of the actuator, and means at opposite ends of said members,

' those at one end controlled by the record ceiving a perforated record sheet, a motor sheet and those at the other end controlled by the manual depression of the keys for causing operative engagement between said members and said motor operated devices.

17. In an automatic typewriter having a keyboard, type bars and provision for redriven actuator, levers operatively connected with the type bars and adapted to be shifted by the actuator, two motor operated devices for shifting said levers into the path of the actuator, and spring pressed pins at opposite ends of the levers, those at one end controlled by the record sheet and those at the other end controlled by the manual depression of the keys for causing operative engagement between the. levers and said motor operated devices;

18. An automatic typewriter comprising a unitary machine having a" frame, a typewriter keyboard at the front of the frame, type bars ,associated with the different keys of the keyboard,means located at the rear' of the frame for receiving a perforated record sheet, actuating members associated with the different type bars, a motor operated 19. An automatic typewriter having a;

typewriter. keyboard, type bars associated with the different keys of said keyboard, and provision for receiving a perforated record sheet, actuating members associated with the different type bars, a motor operated actuator, and motor operated meansrendered effective either by the record sheet or by the manual depression of a key for positively shifting the corresponding actuating member to a position to be engaged by the actuator so thatby further movement of the actuating member independent of the key said actuating member will swing the type bar to printing position.

20. In an automatic typewriter having a f keyboard, type bars and provision for receiving a perforated record sheet, actuating members associated with the different type bars, two motor operated. members, one rendered effective by the record sheet and the other by the manual depression of the keys for shifting the actuating members to a position such that by further movement they will shift the type bars, and means for imparting such further movement.

-21. In an automatic typewriter having a keyboard, type bars, and provision for receiving a perforated record sheet, actuating levers associated withthe different type bars, motor operated means rendered effective either by the perforated record sheet or by the manual depression of the keys for giving the levers a predetermined movement, and additional means for then rocking the levers independently of the keys to swing the type bars to printing position.

22. In an automatic typewriter having a keyboard with key levers, type bars and means for accommodating a perforated record sheet, actuating levers connected to the type bars and mechanically disconnected from the keys and levers of the keyboard, a motor operated actuator for rocking the actuating levers to swing the type bars to printing position, and motor operated means rendered effective through selection by the record sheet or by the manual operation of the key levers for shifting the actuating levers into the path of the the automatic operation of the machine takes place without shifting the keys.

23. In a typewriter having a. keyboard' actuator whereby ator adapted to engage and shift the actuating levers so as to swing the type bars to printing position, and a motor nven member controlled by the manual depression of any of the keys to move the actuating levers to a position to be enga ed by the actuator so as to swing the type ars to printing position without further downward movement of the keys.

24. A single unit automatic typewriter which is provided with type bars and provision for automatically operating the same through a record sheet control includin levers which are connected to the type ars and a power driven actuator in the ath of which the levers are shifted throug selection by the 'record sheet, the ty wnter having a keyboard which is una ected by the automatic operation, and having a motor driven member for shifting said levers into the path of the actuator so that the type bars will be actuated as in the automatic operation. 7

In testimony whereof, I hereunto afiix my

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