US1806200A - Typewriting machine - Google Patents

Description

May 19, 1931. F. A, HART TYPEWRITING MACHINE Filed Feb. 19, 1927 2 Sheets-Sheet 1 WITNESEEE A TT ORNE Y May 19, 1931. F. A. HART TYPEWRITING MACHINE Filed Feb. l19. 1927 2 Sheets-Sheet 2 NVENTOR v4. JVM/ /LMLM ATTORNEY Patented 'May 19, 1931 f- NTT sTATes PATENT Fries FREDERICK A. HART, OF NEW BRTTAN, CONNECTICUT, ASSIGN'OR TO REMINGTON" TYPEWRITER COMPANY,- OE TION, NET/V YORK, A CORPORATION OF NEW YORK TYPEWRITING MACHNE v Application filed February 179, 1927. Serial No. 169,560.

My present invention relates topaper feeding and controlling mechanism for typewrit ing machines, and its object is. to provide new and improved mechanism of lthis character. More specifically my invention has to do with tally roll mechanism and its general purpose is to produce improved tally roll mechanism which overcomes defects of prior v constructions.

.My invention was more particularly designed to improve certain. features of the tally roll mechanism disclosed in my Patent No. 1,488,242, dated March 25, 1924, although the present invention is notrestricted in its application to the prior construction. In the prior patented construction the tally mechanism comprised rotary holders for both the paper and the carbon strips,-the paper and the carbon both being advanced when the platen was turned or liney spaced by means ofthe regular carriage feed rolls in cooperation with the platen. There was also provided a take-up or receiving device for the tally strip in the form of a rotary carrier or holder, having connections with the platen through a pair of friction driving rolls. This frictional lconnection was satisfactory in operation when the carriage was turned by the usual line spacing handle; Howeventhe tally mechanism is frequently lemploy-ed in connection with typewritiug machines provided with electrically driven line spacing and carriage returning mechanism such asv disclosed in my prior Patent No.v 1,1567 ,590,

dated December 29, 1925, and, when -so employed, develops certain defects which the present invention was designedto overcome. Under an electric' or power operation it sometimes happens that a rather abrupt, jerky rotary line spacing movement is communicated to the platen such as tocause the vfrictional connection between the platen and the tally receiving roll to slip, resulting in Y the tally strip winding on the receiving roll irregularlyvor defectively. Accordingly, in my present construction the frictional connection hasV been dispensed with, having been replaced by a spring take-up which is constantly edective, the result being that when the platen is' rotated and, tho/paper or Atally vstrip is fed from it, the receiving roll Awill,

spring within the tally roll is givenfasuit# able initial adjustment or tension. To maintain this tension and prevent the spring from running down, stop mechanism is'provided comprising a stop on the tally receiving roll and a cooperating stop on its shaft.v VThis shaft receives rotary movements when the line space mechanism of the machineV is operated and has a gear connection lwith the tally receiving or take-up roll, the purpose of the construction being to put into the spring at each line-spacing operation substantially as much tension as is` taken out by therotation of the tally roll to take up the slack when the tally strip is fed or line spaced from' the platen. Tn other words, the purpose is to energize the spring so as to maintain it as nearly as possible under an effective orV operating tension. Owing however, tothe continuously increasing diameter of the takeup roll as the tally strip winds on it the ex-` tent of rotation of said roll will be progres- Sively lessened, with the result that the stop on the tally roll will move correspondingly less and less at each line spacing operation. Since thecooperatingstop on the roll-shaft receives substantially a constant extent of turning movement thel result willr be lthat there will occur .ai progressively increasing distance between the two cooperating stops, eventually resulting in thefshaft stop catch'` ing up with the roll stop. Tt will-be seen that as a consequence of this variationl in the extent of rotation of the shaftan'd the tally roll, the roll spring connected atits opposite ends to these two parts will be ywound up tighter and tighter and that should said spring be allowed to wind up tothe limit the elastic orvyielding connection between the tally roll and its shaft will be done away with, a resultcorresponding in eect towhat would occur should the two stops be brought into elfectvc engagement, `It will be apparent that if the roll be forced to turn correspondingly to its shaftat any time after a `considerable amount of paper has been wound on it there will be danger of the paper being rent or torn between the tally roll and the platen, owing to the tally roll attempting to wind on a greater amount of paper than is fed to it from the platen. With the sort of spring employed in the present embodiment of my invention I have found it practicable to allow the shaft stop to catch up with and pass the tally roll stop a plurality of times without overwinding the spring, and accordingly I have provided a shaft stop in the form of a Geneva stop, the final arrest not taking place until there have beenthree revolutions of the shaft stop relatively to the tally roll stop. This is sufficient to allow the tally receiving roll to be sufifciently filled with the Written tally wound thereon. After this written portion of the tally strip has been re.-

' moved from the receiving roll and prelimiv nary to a fresh start, the tally rollshaft,

which is mounted for endwisevdisplacement Y to disconnect from the line spacing mechanism, is pushed in, thereby enabling the tally roll to be automatically retracted so that the parts may start anew from initial position.

. To theV above and other ends which will hereinafter appear my invention consists in the features of construction, combinations of devices and arrangements of parts hereinafterdescribed and particularly p ointed out in the claims.

The invention willbe described and `explained in detailv in connectionwith vthe accompanying drawings wherein A Fig. 1 is a fragmentary end view partly in section showing the carriage of a Remingtontypewriting machine, Model 23, embodying my invention.

Fig. 2 is a fragmentary vertical sectional view taken on a plane indicated by the section line 1 1 in Fig. 3 and looking in the direction .of the arrows at said line,

Fig.v 3 is a'fragmentary front elevation, partly in section, of Fig. 1, some of the parts shownl in Fig. 1 being omitted. l

Fig. 4, isv a fragmentary vertical sectional view drawn to an enlarged scale ,taken on a planeindicated by the section line 2-2 in Fig. 3 and looking in the direction of the arrows at saidline, some` of the parts .being shown in vdifferent positions.

Fig. v5 is a fragmentary vertical sectional view taken on a plane indicated by thesection line. 3-3 in Fig. 3 and looking in the .direction of the arrows at said line.

Referring to Fig. 1, the top plate 1 or upper frame work .of the Remington typewriting machine is provided with short lugs to which are secured grooved guide rails, one rear lug 2 and the rear guide rail 3 being shown. The guide rails cooperate through anti-friction rollers cwith thegfront and rear grooved bars 5 and 6 of a rectangular carriage truck that further comprises connecting end bars 7. Shiftably mounted on the carriage truck is a platen frame comprising end bars 8 and a connecting cross bar 9, the platen frame providing a support for the axle members and of a cylindrical plat-en, the right-hand axle member 11'of said platen 12 being shown. Cooperative with the platen are the usual paper feeding devices comprising main and secondary feed rollers conventionally illustrated herein and numbered respectively 13 and 14,' these feed rollers being releasable but normally cooperating with the platen to feed or advancethe paper thereover when the platen is turned. Gperatively connected with the right-hand end of the platen 12 is aline spacing ratchet wheel 15 with which cooperates a line spacing pawl 16 pivoted at 17 on a carrier 18 rotatably mounted onthe righthand axle member 11. Said pawl is connected at 19 to a link 20 extending forward and connected at 21 to a bell crank leverl 22 pivoted at'23 to the right-hand end bar 7. A wire link 23ZL connects the bell crank 22 to a crank arm 23b fixed to a spring-pressed rockshaft 24 mounted in a bearing member or bracket 25 detachably securedto the end bar 8, said rock shaft terminating forwardly in a downward extension or handle24a whereby Y the line spacing pawl 16 is operated' through the described'train of connections to communicateline spacing movements to Ithe platen 12. Said handle is also eifectiveto restore the carriage manually from left to right. 'In addition to the manually operated line spacing devices above described there are also provided power devices or electrical means for actuating the pawl 16 to ,line space the platen. The electrically operated powerl devices are preferably of the sort fully disclosed in my aforesaid -Patent No. 1,567 ,590 and will be brieiiy described in connection with Fig. 1 wherein certain of the parts in theelezctrical train arediagrammatically illustrated'. The electrical line spacing means comprises an electric motor 26 which is connected by a shaft 27 with abeveled gear 28 that intermeshes with a beveled gear 29 secured to the lower end* of a vertical shaft 30 carrying at its upper end a spur gear wheel 31 which meshes with a rack bar 32 that is arrangedA at the underside' of the rear bar 6Y ofthe carriagetruck from which -it is supported by headed screws 33. VVThese screws pass freely through slots in the rack bar andare threaded into the bar .6, thus allowing of a sliding independent endit from left toright. This independent movement effects t-hey automaticiline spacing. A verticalshaft 341 ismounted on a` bracket 35 secured to the right-hand end bar of the carriage, said lshaft carrying at its lower end a crank arm 36 which lies in the path ofthe rack bar 32 and is adapted to be engaged by the right-hand end thereof. At its upper end the shaft 34 carries a leftwardly extending arm or crank 37 having a pin 38A which stands in the path of a lug or ear 39 bent @if horizontally from a reciprocating bar 40, the forward end of which is pivotally connected at 2l tothe bell crank 22. The rear end of the bar 40 is formed with a guide slot 4l which engages a pin 42 that bridges a guide slot formed in an upward extension 8a from 'the rear of the platen frame near the right-hand j end bar 8 thereof, the rear end portion of the bar 40 being guided in the slotted extension 8a. lVhen the electrical connection is effected at the end of a line of writing motion is transmitted through the described train of connecj; tions from the motor'26 to the shaft 34, causing the crank 37 at the upper end of said shaft to swing rearward, thus bringing the pin 38 into engagement with the ear 39 of the bar 40 and moving said bar longitudinally rearward. The movement of the bar actuates the bell crank 22, the link 20 and the pawl 16 causing the said pawl to cooperate with the ratchet wheel 15 to line space the platen. The bar is returned to normal position by the usual means including the spring (not shown) connected to the line spacing rock shaft 24. As heretofore stated this electrically operated line spacing mechanism' sometimes effects an abrupt or jerky movement ofthe platen in a rotary direction.

Referring to the tally roll mechanism proper, the support for the tally rolls comprises angular brackets 43 having horizontally disposed arms 44 and upright arms 145, the two brackets being connected by a cross rod 46 clamped to the Vbrackets by nuts 47. The arms 44'eXtend forward to therusual scale bar 5a on the front-bar 5 of the carriage truck and receive pivotscrews 48 which are threaded into said scale bar. The tally mechanism proper is mounted on the cross rod 46 which is disposed vabove the platen and on a rock shaft 49 which bears in'openings in the arms and is adapted to turn freely in its bearings but is held against ende wise movement by collars 50 fixed to? the shaft by setscrews 5l. The tally -stripcontrivance may 'be adjusted along the supports v46 and 49 to any desired position longitudinally kof the platen. The contrivance aforer said' comprises frame plates 52 Vconnected by a sleeve 53 which tits over the rod 46 and` is held rigid with the frame plates 52'by nuts 54. Mounted on the rod 46 near its ends are metal rollers 55` which are adapted to bear rotatively on the upper surface of the platen, thus providing a support for the tallyframe, said disks being held against endwise movement in any desired way, as by collars 56. The sub-frame 52, 53 provides asupport for the several rotary carriers or mandrels coinu prisedlin thetally contrivance, there being three of such carriers, lone for delivering `or supplying the tally strip, another for receiv-` ingor taking up the tally after'it has been fed around the platen and Written upon, and, third, a carrier for the roll of transfer material or carbonppaper. Said third carrier is arranged at the top of the sub-frame, the tally supplycarrierbeing arranged next below and the take-up carrier being lo-wermost. carbon carrier and the means for controlling it are of the general construction disclosed in my prior Patent No.'1,488,242 aforesaid, and need be but briefly described. Said carrier is in the form of a spool comprising a core portion or sleeve 57 and heads or flanged Vmembers 5 8 secured in the ends'of the sleeve and perforated to bear on a spindle or shaft 59 supported at its ends inthe frame bars 52 (Figs. 2 and Outside the left-hand frame bar 52l the shaft 59 may be provided with a thumb piece` 60 for manual operation. The carbon holder 57, 58 is spring'mounted onv the shaft 59, said shaft being surrounded for part of its length by a coiled spring 61, one end of which is anchored to a pin 62 on the shaft, the opposite end of said spring being connected to a pin 63 projecting inward from the left-hand head 58. Said spring tends constantly to turn the holder to Wind the carbon paper thereon. When the platen is line spaced the carbon will be drawn off the roll holder in opposition to the spring, and'when the feed roller release mechanism is actuated the lcarbon will be freed so that it will be rewound on the holder as the latter is turned by said spring, the rewinding motion continuing until a stop pin 64 projecting outward from the' left-hand head v58 engages with a relatively fixed stop 65. V The position The of the stop 65 is automatically variable so asto varythe point ofy arrest of the carbon roll holder on rewinding. Y `Said stop65 is mounted on a gear wheel 66 which .is supported on the shaft 59 inside the left-hand end bar 52 said gear wheel meshing with a pinion 67 carried byva stub shaftus68, said lio shaft bearing in and projecting outward be- 1 yond lthe end bar 52 and providing a sup@ port outside said end bar for a toothed wheel 69 (Figs. 3 and 5). The wheel 69 is adapted to be actuated to vary the position of the stop 65 by pawl mechanism .comprising a pawl 70 pivoted 'at 7l on a crank arm 72 secured to the rock shaft 49. Inthe construction disclosed inmy prior patent, when the feed rolls-13 and-,14 are released by the usual release key (not shown) the shaft 49 which is connected to said release key by devices disclosed insaid patentwill be rocked, thus moving the pawl 70 from the Vfull line to the dotted line Vposition in AF ig. 5 and communicating a correspondingl ezrztent'of movement to the stop 65. n

' However, it is sometimes desirable, as

ico

35 y hand frame plate 52. The spring 82 acts as a 60 Y severing blade 91. T he left-hand end thereof tion of the stop 65. A holding pawl 73 is pivoted at 74 to the frame plate or side bar 52 and is maintained constantly in engagement with the toothed wheel 69 by a coiled spring 75 which connects the pawls 7 3 and 70 (Figs. 3 and 5). i

The tally supply roll is mounted on a rod, or spindle 76 and a trunnion or bearing proj ection 7 6a which are supported in the frame plates 52 below the carbon roll (Figs. 1-3). The tally supply roll comprises'a core or hub .portion 77 and` flanges or heads 78 and 79.

The flange 78 may be secured to the righthand .end of the core in rigid relationship therewith. The flange 79 at the left-hand end of the holder is preferably independent of the core for convenience in applying the tally roll to-and removing froml the holder. Said head 79 is provided with an outwardly extending hub 80 which bears loosely on the shaft 76. Rigid with the head 78 is a grooved disk 81 disposed'at the right of saidv head 78. Seated in the groove in said disk is a coiled friction spring 82 having its ends anchored to a pin 88 projecting inward fromv the right drag or brake to prevent undue turning'of the supply roll and consequent overfeeding of the paper or tally strip. Said strip, indicated in Fig. 2 by the dotted line 84, is led o from the tally roll 85 at the rear side thereof and extends downward in front of the carbon strip or transfer material 86 which is also led off from the roll for the carbon or transfer material 87 at the rear side thereof. The

two strips orsheets-84 and 86 are led down at the rearfof the platen 12 and between it and the feed" rollers 18 and 14. The bill sheet indicated by the dotted line 88, is introduced in the usual way outside said strips. The bill sheet as is well understood receives the impressions of the typebars from ytheusual inking ribbon not shown, these impressions being duplicated on the tally'strip 84 at the front side of the platen through the carbon strip 86. The tally strip 84 andthe carbon strip 86 pass upward at the front of the platen over a guide plate 89 secured at its en ds to the frame plates 52. Forward of the guide p late and spaced therefrom by washers 90 is a is pivoted on a rivet 92 which secures the lefthand washer in place. The right-hand end portion of the blade- 91 isslotted, as indi cated at 93, to fit overa corresponding rivet 92 associated with ythe right-hand washer 90.

The space between the plate 89 and the blade or plate 91 provides a guide slot through which the tally strip and carbon strip Vare led, the free end of the bill sheet passing outsideof said slot. The forward end of the carbon strip is left free so as not to interfere with the rewinding of the carbon on its roll when released from the platen while the forward end portion of the tally strip is secured to a receiving roll holder on which the Written portion of the tally is wound, said roll holder and associate parts embodying the main features of my present invention.

The receiving roll holder for the tally strip is mounted on a shaft 94 (Figs. 2 and 3) which is rotatively and slidably supported in the frame plates 52. The shaft 94 projects outwardly beyond said frame plates at both of its ends. The left-hand end ofy said shaft is provided wtth an enlargement or head 95 which forms a convenient means for pressing it rightward as hereinafter described. Between said head and the adjacent frame plate 52 a spring 96 is coiled around the projecting portion of the shaft and vtends constantly to press it leftward in its bearings.

The receiving holder for the tally strip comprises a tube or sleeve 97, which'at its left-hand end has secured to it a head 98 bearing on the shaft. The righthand end of the tube likewise receives a head 99 having an outwardly projecting hub 100, the head properV fitting inthe tube and being securedthereto, the hub portion being perforated to fit over and bear on the shaft. Outside the right-hand frame plate 52 the projecting end portion of the shaft 94 carries a gear wheel 101 which is secured in place by a, nut 102. Said gear wheel is comprised in a train of mechanism which connects the shaft 94 with the line spacing mechanism heretofore described. Said. train further comprises a gear wheel 103 arranged above the gear 101 and intermeshing therewith, the gear wheel 103 being loosely mounted on the rod 49 outside the right-handframe plate 52. Rigid with the gear wheelv 108, and outside the same, is a ratchet wheel 104. Constantly engaged with said ratchet wheel is a pawl 105 pivoted ona screw pivot'V 106 secured to the end portion of a crank arm 107 having a hub 108 that i)s keyedto the rock shaft 49 (Figs. 1 and 8' jects beyond the bracket arm 45 and has secured to it a crank arm 109. Said crank arm has a hubk110 which fits overkthe rock shaft 49 and is secured thereto by a set screw111. The crank arm projects downward and at its free end carries an outwardly projecting pin 112 which engages loosely in a slot indicated at 113 formed in the upper end portion of an arm or extension 114 which is secured by screws 115 to the bar or lmember 40 of the line space mechanism. It will be understood l tion.

that when the bar 40 is operated by either of the dual means heretofore described, that is, either manually or by` power, its motion will be transmitted through the slot and pin connection 113, 112 to the crank arm 109, thereby rocking the shaft 49 and actuating the pawl 105 which cooperates with the ratchet wheel 104 to actuate the gear train 108, 101 and turn the shaft 94. The shaft 94 and the take-up or receiving carrier 97-99 having a spring connection as hereinafter 'described, this motion communicated to the shaft 94 by either of the 'dual liney spacing mea-ns will be effective on said spring connection. It will be borne in mind that the shaft 49 is likewise connected with 'the actuating mechanism for the variable stop 65 so that the turning of the shaft 49 is effective both on the tally take-up mechanism and' also on the variable stop mechanism Vfor the carbon roll holder. After actuation, the rock shaft 49 is restored to normal position by the' bar 40 whose return movement is transmitted to the shaft'by the p in and slot connection 112, 113. V

The connection between the shaft 94 and the receiving holder 97-99 is provided by a wire spring 116, which, as clearly shown in Fig. 3, is coiled around the shaft inside the tube 97. One end of said spring is secured to a pin 117 projecting radially from the shaft while the opposite end is secured to a pin 118 projecting inward from the head 99. The spring tends constantly to turn the roll holder to wind the tally strip 84 thereon, the direction being indicatedby the arrow in Fig. 4. The tube 97 is formed with a longitudinal extending slit or narrow opening 119 which receives the free end of the tally strip 84 and holds it in place by fric- Said slit preferably doesnot extend through the full length of the tube and the side portions of the tally strip near itsends are folded so as to narrow the tally strip suiiiciently to enable it to Vbe passed into the slit. As best seen from Fig. 4 the slit is not cut radially but is so disposed that it engages the end portion of the tally strip at such an angle to the line of pull as to prevent it from being accidentally withdrawn from the tube 97. The tally strip is wound on the roll holder 97-99 at the front side thereof, as shown in Fig. 2, and the spring 116 tendsconstantly to turn the roll holder in clockwise direction as viewed in said Fig. 2, or in the direction of the arrow, Fig. 4, when viewed from the left. The inner end of the spring connected to the shaft 94, is prevented from unf winding normally by reason of the fact that said shaft is held through the gear connection 101, 103 and the pawl 105 and ratchet 104. The pawl 105 is provided with a spring 120 wound around its pivot 106, which spring tends constantly to maintain the pawl engaged with the ratchet wheel 104. A hold#V ing pawl 121 is likewise provided for said ratchet wheel, said pawl being pivoted -at 122 to the adjacent frame lbar 52. Said pawl is also provided with a sp'ring'123 which is wound around its hub portion and tends to keep the pawl engaged with thel ratchet wheel. .i The pawl 121 is provided withl a tail portion 121a whereby it lmay be conveniently released from the ratchet wheel..v vThe left-hand end portion of the tube 97 is formed on its outer face with a series of ratchet teeth 124 providing a ratchet wheel with which cooperates an arc-shaped holding pawl member 125 that is pivoted at 126 to the inner face of the left-hand frame plate 52 (Figs. 2 and 3). A coiled spring 127,A connected to said frame plate and to said pawl, tends constantly to maintain the rear prong or sharpened end `portion of the pawl member Yengaged with the ratchet 124. By pressing againstthe forward horn or prong of the pawl member 125 the spring ,127 may be overcome and the pawl released or disconnected from the ratchet wheel. The pawl and ratchet 125, 124 are effective to prevent unwinding of the tally strip from the take-up holder when the platen is rotated backward. rllhe `shaft 94 may be pressed endwise towards the right to'the dotted line position illustrated in Fig. 3 to disconnect the gear wheel 101 from the gear wheel 103. Normally, however, the spring 96 maintains said gear wheels'connected as shown. 1

Assuming that the spring 116 is given a sufficient initial tension, it will be apparent that when the platen is turned in line spacing direction the tally strip will be corresponding-ly fed over the platen by reason of the co-.

operationtherewith of `the feed rollers 13 and 14 and that the spring mounted holder 97-99 will tend to turn to wind the tally strip thereon, thus taking up the slack. The line spacing movements of the platenare constant or unvarying, while the turning lmovement of Y the take-up tallyroll will vary in correspondence with the amount of paper or completed tally strip wound thereon., 1f then, at the start, the tally roll turns to wind on an amount equal to that fed from the platen this turning movement will constantly lessen as the amount of paper wound onthe roll increases. This complicates the matter of pro-v viding stop devices for the tally roll spring. Such devices are, of course, necessary to prevent the initialspring tension from being lost when either end of the spring is free to unwind. Since Yone end of the spring is connected to the tallyroll and the other end of the spring is connected to the tally` roll shaft, the coacting stop devices must be secured one on or relatively to the shaft and one Von or relatively tothe tally roll. In the vpresentconstruction the tally rollzystop is in the form of V a pin .128 projecting outward from the head 99 of the holder (Figs. 8 and 4). Theco- Leo ' the inner face of the right-hand frame plate 52.l The Geneva stop overliesthe hub 100 and-is disposed in the path of the pin 128.

Y The crank or support 133134 has a pin and slotconnection with the shaft 94 on which it is .mounted A pin 135, projecting inward through the hub 134, engages vin an elongated slotway 136 formed longitudinally in said shaft. The connection is such that the crank is forced to participate in turning movements of said shaft carrying with it the Geneva stop. Said crank, however, does not interfereor participate in endwise movements of ksaid shaft when it is pressed to the right to dis connect the gear train 101, 103. The portions 137 of the stop 12-9'which are formed 'between the recesses 130 have their outer faces curved as indicatedat 138 in conformity with the outer surface of the hub 100. One or another of the curved'faces 138 is in contact with the surfaceof said hub 100 during the greater part of the bodily traveling movements of the stop 129 around the axis of the shaft 94 asa center. Consequently the stop 129 will at such times be locked` or prevented from turning on its axis 132.' In order to lpermit such turning movements of the stop 129 when it operatively engages with the coacting stop 128, the hub 100 is formed opposite said pin stop 128 witha recess or depression 139. This is of suiiicient depth to permit the stop 129 to turn when in engagement with the pin 128,

but after said stop 129 has thus been turned' in the recess 139,said stop passes out of the recess and one of its curved faces 138 will l again interlock with the curved surface Vof the constant or unvarying, while the movements of the tally holder 97-99 to take up slack progressively decreases as the size of the tally roll increases. Consequently if the stops 128 and 129 are in engagement at the start of operations, it will be apparent that since the stop 128 will gradually slow up, the stop 129 ymoving at a constant rate will gradually leave said stop 128. As the line spacing operations or turning movements of the platen are continued, the stop 129 will advance step-by-step around the axis 94, moving in the direction of the arrow, 4 and will catch up with the stop128, engaging with it on the side opposite from the initial engagement. As a result ofthecoaction between the two stops, the stop 129 will be turned one step on its pivot 132 in a` manner well understood, thus being permitted to pass the stop 128. The Geneva con-y struction will permit the stop-129 to pass the stop 128 twice in this-way before being finally arrested by said stop. .This final arrest is due to the fact that the stop 129 is prevented from turning on its pivot 132 by the engagement' of the stop face 131 with the stop 140.` The parts are so proportioned and constructed .Y

that when this final arrest takes place the tally L roll holder 97-99 will contain what its known as a run of work. Hence the operator may now disconnect lthe roll holder from its operating train by pushing` inthe finger piece 95,

allowing the spring 116 to turn the tally roll I in reverse direction'until the stops 128 and 129 Contactin initial position. Thereupon the printed portion of the tally thus unwound is torn off against the severing knife or blade 91 and withdrawn from the slot 119. Next a fresh portion of the tally 84 is drawnolf the supply roll 85 and its free end passed into the slot 119 to connect it lwith the receiving roll holder 97-99,.after which the operations above outlined kmay be resumed. The tension in the spring 116 will, of course vary to some extent between the two extremes, that is, between the initial tension and the final tension which is stored in the spring, through the energizing means operated automatically by the line-spacing mechanism'when the stops 128 and 129 engage arrestingly. However, this variation is .within practicablelimitations,`so that the operation of the spring 116 is never over-wound and the take-up mechanism isin eect the same at the initial stage and the final stage. It will be seen therefore that as a result of my invention there is provided a take-up mechanism for the tally which is ecient in operation, and is at all stages effective toA take up the slack and to maintain the tally strip in a properly taut condition between the platen and the take-up or receiving roll holder. A

, Various changes may bel made without departing from my invention.

' `What Il claim as new and desire to secure by Letters Patent, is

' 1. Tn a typewriting machine, the combination of a platen, a rotary material-carrying holder, a stop for limiting turning movements of said holder to rewind the material thereon, a sheet-receiving holder, a spring for turning said last named holder, and means for variably setting said stop and also for tensioning said spring. l i

2. In a. typewriting machine, the combination of a platen, arotary 'material-carrying' holder, a stop for. limiting turning movements of said holder to rewind the material thereon,

ya sheet-receivingholder, a spring for turning ing said last named ho-lder, a rock shaft conf nected to said stop and to said spring, and dual means for actuating said rock shaft, said dual means being alternatively effective` 4. In a typewriting machine, the combination of a platen, arotary material-carrying holder, a stop for limiting turning movements of said holder to rewind the material thereon, a sheet-receiving` holder, a spring for turning said last named holder, a rock shaft, connections between said roclr shaft and said stop, connections between said roclr shaft and said spring, means for turning the platen, and connections between said last named means and said rock shaft.

5. In a. typewriting machine, the combination of a platen, a rotary material-carrying holder, a stop for limiting turning movements of said holder to rewind the material thereon, a sheet-receiving holder, a. spring for turning said last named holder, a rock shaft, connections between said rock shaft and said stop, connections between said rock shaft and said spring, dual line spacing means, and connections between said dual means and said rock shaft, said dual means being alternatively effective.

6. In a typewriting machine, the combination of a platen, a rotary material-carrying holder, a stop for limiting turning movements of said holder to rewind the material thereon, a sheet-receiving holder, a spring for turning said last named holder, a roch shaft, connections between said roclr shaft and said stop, connections between said roc-lr shaft Vand said spring, hand operated line spacing devices, power-operated line spac` ing devices, and connections between both' said sets of devices and said rock shaft.

7. In a typewritine machine, the combination of a platen, a. rotary material-carrying holder, a stopfor limiting turning movements 'of said holder to rewind the materialV thereon, a sheet-receiving holder, a. spring for turning said last named holder, devices for variably setting said stop and for tensioning said spring, hand-operated line spacing mechanism, power-operated line spacing mechanism, and connections between both of said mechanisms and said last recited ydevices, the two line spacing mechanisms being alternatively effective.

Y8. In atypewriting machine, the combination of a platen, aA rotary material-carrying holder, astop for limitingturning movements of said holder, line spacing means for the platen, and connections between said line spacing means and said stop whereby said stop may be variably set automatically by said line spacing means.

9. In a typewriting machine, the combination of a. platen, a material-carrying holder, a stop for limiting movements of said holder, a rotary support for said stop, means for line spacing the platen, and operating connections between sai'd'line spacing means and said rotary supportV whereby saidv support is automatically operated. y

l0; In a typewriting machine, the combination of a platen, a material-carrying holder, a stop for limiting movements'of V'said holder, a support for said stop, devices for rotating said support (including a pawl, a. roclrshaft for actuating said pawl, means for line spacing the platen, and connections between said means and said rock shaft for automatically actuating said rock shaft.

ll. In a typewriting machine, the combination of a platen, feed roller devices cooperativeY therewith, a carbon roll hol-der, a spring for turning said roll holder when the carbon is released by said feed roller devices, a stop for limiting turning movements or said roll holder under the action of its spring, a rotary support for said stop, devices for rotating said support, line spacing mechanism for the platen, and connections between' vsaid line spacingvmechanism and vsaid devices whereby said vdevi ces are automatically actuated from the line spacing mechanism.

12. In a typewriting machine, the combination of a platen, feed roller devices cooperative therewith, a carbon roll holder, a spring for turning said roll holder when the carbon is released by said feed roller devices, a stop for limiting turning movements of said roll holder under the action of itsV spring, a rotary support for said stop, devices for rotating said support including a roch shaft, 'dual means for line spacing the platen including a bar, and connections between said bar and said rock shaft.

13. In a typewriting machine, the conibination of aplaten, feed roller devices cooperative therewith, a carbon roll holder, a spring for turning said roll holder when the carbon is released by said feed roller devices,

a stop for limiting turning Vmovements of said roll holder under the action of its spring, a rotary support for said stop, devicesl for rotating said support includingfa rock shaft, dual means for line spacing the platen'including a bar, a crank arm on said roclr shaft, and a pin on said crank arm engaging a slotted extension on said bar.V

le. In a typewriting machine, the comturned to draw paper from the delivery roll hol-der, line spacing mechanism for turning the platen, spring mechanism connected with the receiving roll holder to take up slack in the paper when it is fed from the platen, and automatically controlled connections between said spring mechanism and said line spacing mechanism.

15. In a typewriting machine, the combination of a rotary platen, a delivery roll holder,a receiving roll holder, feed roller devices cooperative with the platen to draw paper from the delivery roll holder, line spacing mechanism for turning the platen, a spring connected with the receiving roll holder, and automatically operating connections between said spring and said line spacing mechanism.

16. In a typewriting machine, the combination of a platen, avspring mounted roll holder for taking up paper fed from the platen, stop devices for limitingv mo-vements of said roll holder under control of its spring,

and means for automatically controlling said stop devices to maintain suitable operatingtension on the roll holder. 17. In a typewriting machine, the combination of a platen, a take-up roll holder for paper, a spring for tensioning said roll holder, stop devices for maintaining suitable tension in said spring, and means for regulating the action of said stop devices and said spring.

V18. In aV typewriting machine, the cornbi-A nation of a platen, a roll holder for paper, a

spring for tensioning said roll holder, stop devices for controlling the action of said spring, and means operating automatically to regulate the eect of said spring and of said stop devices.

19. In a typewriting machine, the 'combination of a platen, a paper roll holder, a spring for tensioningsaid roll holder, stop devices for controlling the action of said spring,

. means for regulating the action of said stop devices and said spring, devices for line spacing the platen, and connections between said devices and said last recited means.

20. In a typewriting machine, the combination of a platen, a roll holder, a spring for tensioning said roll holder, stop devices for controlling the action of said spring, said stop devices comprising a Geneva stop and a cooperating stop, and means for regulating the action of said stop devices andthe effect of said spring.

21. In a typewriting machine, the combination of a platen,a roll holder for paper, a shaft on which said roll holder is adapted to rotate, a spring connecting said shaft with said roll holder, a stop connected to said rollV holder, a cooperating stop connected to said shaft, and Vmeans for automatically controlling said stops.

22. In ak typewriting machine, the combination of a platen, a roll holder for paper, a

holder, a cooperating stop connected to said shaft, and line spacing devices for the platen, said devices being effective to communicate rotary movement to said shaft.

23. In a typewriting machine, the combination of a platen, a roll holder for paper, a shaft on which said roll holder is adapted to rotate, a spring connecting said shaft with said roll holder, a stop connected to said roll holder, a coopera-ting stop, a crank arm on said shaft by which said cooperating stop is carried, line spacing devices for the platen, and connections between said line spacing devices and said shaft.

24. In a typewriting machine, the combination of 'a platen, a roll holder for paper, a shaft on which said roll holder is adapted` to rotate, a spring connecting said shaft' with said roll holder, a stop connected to said roll holder, 'a cooperating stop, a crank arm on said shaft by which said cooperating stop is v carried, line spacing devices for the platen, and a rock shaft connectedrto said line spacing devices and also to said roll holder shaft.

25. In a typewriting machine, the combi# nation of a platen, a roll holder for paper, a

shaft on which said roll holder is adapted toY rotate, a spring connecting said shaft with said roll holder, a stop connected to said roll holder, a cooperating stop, a crank arm on said shaft, said cooperating stop being pivv oted onvsaid crank arm, devices for turning the platen step by step, and a rock shaft operative by said devices and to said shaft whereby said stops on cooperating effect a turning movementof said cooperating stop on its pivot.

26. In a typewriting machine, the combination of a platen, a roll holder for paper, a shaft on which said roll holder is adapted to rotate, avspring connecting said shaft with ksaid roll holder, a stop connected to said roll holder, a cooperating stop, a crank arm on said shaft by which saidk cooperating stop is carried, line spacing devices for the platen, a rock shaft operative by said line spacing de-A vices, and a gear connection between said rock shaft and said feed roller shaft.

27. In a typewriting machine, the combination of a platen, a roll holder for paper, a

shaft on which said roll holder is adapted to 1r.

las

shaft oniwhich said roll holder is adapted to rotate, a spring connecting said shaft with said roll holder, a stop connected to said roll holder, a cooperating stop, a crank arm on said shaft by which said cooperating stop is carried, line spacing devices for the platen including a reciprocating bar, a rock shaft, a crank arm thereon, pin and slot connections between said crank arm and said bar, and gears connecting said rock shaft with said roll holder shaft.

29. In a typewriting machine, the combination of a platen, a roll holder for paper, a spring for tensioning said roll holder, stop devices for cont-rolling the action of said spring, and means for regulating the action of said stop devices and said spring, said shaft being movable endwise to release said stops when they are interlocked to permit the unwinding of said spring.

30. In a typewriting machine, the combination of a rotary platen, paper feeding means cooperative therewith, a delivery roll holder, a take-up or receiving roll holder for receiving paper fed around' and from the platen and from said delivery roll holder, a spring positively connected to said take-up roll holder for turning it, and automatic self regulating means for maintaining suitable effective tension in said spring irrespective of the amount of paper wound on said take-up roll holder and unwound from said delivery roll holder, said automatic means including' means acting positively 0n said sprlng to wind it and control its tension.

3l. In a typewriting machine, the combi-V nation of a traveling carriage, rotary platen carried thereby, means cooperative therewith to effect a feed of the paper, a roll holder for receiving paper fed from the platen, a spring for turning said roll holder, Aline spacing means operable at will independently of a printing operation for intermittently turning the platen and thereby line spacing the paper, and means controlled by the intermittent actuation of said line spacing means for maintaining eectively operating tension in said spring.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York this 17 th day of February FREDERICK A. HART.

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