US837131A - Type-writing machine. - Google Patents

Description

No. 837,131. PATENTED NOV. 2%, 1906. G. A. SBIB. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 30. 1905.

6 SHEETS-SHEET 1 g I n \o\ :3 Ln 0 r J0 Q2 T Q 0 P B I. O

WITNESSES: INVENTEIR HIEA TURNEV No. 837,131. PATENTED NOV. 2'7, 1906. G. A. SBIB. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 30. 1905.

5 SHEBTS-SHEET 2.

WITNEEEEEQ |NVENTUR= PATENTED NOV. 27, 1906.

G. A. SEIB. TYPE WRITING MACHINE. APPLICATION FILED JUNESO. 1 905.

5 SHEETS-SHEBT 3.

:2. E 2 U M "7 L.

WITNESSES: INVENTUR.

HIS TTEIRNEY No. 837,131. PATENTED NOV. 27, 1906. G. A. SEIB. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 30, 1905.

5 SHEETS-SHEET 4,

' HIE-ATTORNEY! No. 837,131. PATENTED NOV. 27, 1906. G. A. SBIB.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 30, 1905.

5 SHEETS-SHEET 5.

WITNESSES- |NVENTUR= QA+7DW H I5 ATT'ELSNEY UNITED srArEs PATENT o EioE.

GEoRGE SEIB, OF sY AcUsE. NEW YOR Q SSIGNOR TO THE MoNARcH TYPEwRirER COMPANY, OF sYRAcUsE, ,NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Nov. 27, 1906.

Applicationflled June 30, 1905. Serial No. 267,806.

State of New York, have invented certainnew and useful Improvements in Type-Writing Machines, of which the following is a specification. I

My invention relates to the ribbon-feeding mechanism oftype-writing machines, more especially of that class of machines wherein the ribbon has connections with the means for driving or impelling the carriage.

In machines of the class referred to whenever the carriage is freed or released from the escapement devices either by actuating a release-key or a tabulator-key or otherwise and is drawn varying distances under the influence of the carriage-impelling device, which is usually in the form of a spring-drum, the ribbon, which has connections. with the carriage-impelling device, will be fed corresp onding distances. During the feed of the ribbon just described theprinting devices are ofcourse inactive, and consequently a portion or section of the ribbon, varying more or less with the distance which the carriage is jumped or drawn when freed from the escapement devices, will pass the printingpoint without being usedthat is, without receiving impressions from the types. -Tlie result is that as the ribbon becomes more and more exhausted in use these unused sections or patches 'of, the ribbon become more apparent in the printing executed by the machine, some of the printed characters being much darker than others, and the type-writing consequently has an irregular and patchy appearance. Furthermore, in machines of the character referred to and in which the direction of the longitudinal feed of the ribbon is automatically reversed it sometimes happens that the-end of the longitudinal feed in one direction is attained during one of the jumps or rapid movements of the carriage and that then the rapid movement of the carriage prevents the effective working of the reversing mechanism, and the ribbon is either stopped from, feeding or is pulled or torn from the emptied spool.

The main obje'ct of my invention is to provide meansto overcome these defects.

Other objects will subsequently appear.

To the above ends the invention resides in the features of construction, arrangements of parts, and combinations of devices hereinafter described in detail, and particularly pointed out in the claims.

I have shown the preferred construction of my invention as applied to a machine having the general characteristics of thetype-writing machine commercially known as the Monarch type-writer; but it is to be under stood that my improvements may be embodied in any other kind or style of writing-machine which is available for the purpose.

In the accompanying drawings, Figure 1 is a vertical front-to-rear sectional view taken about centrally of so much of a t e-writing machine as is necessary to a 0 car understanding of the invention. Fig. 2 is a'fragmentary' front elevation of the upper part of the machine with certain of the parts omitted; Fig. 3 is a rear elevation of the machine, parts being omitted and other parts being broken away. Fig. 4 is a sectional view taken ona plane represented by the line elevation, partly in section, showing parts'of' the ribbon and disconnecting mechanisms.

Fig. 6 is a view similar to Fig. 5, showingthe same parts, but with some of them in different relations. Fig. 7 is a diagrammatic top plan view of the ribbon-feeding and ribbonreversing mechanisms. Figs. 8 and 9' are diagrammatic views further illustrating the ribbon-feeding and ribbon-reversing mechanisms.

In the drawings the main frame. of the ma"- chine comprises abase 1, corner-post 2, and a top plate 3.

4 is one of 'a series of key-levers fulcrumed on a fulcrum-plate 5 in the rear of the base, each key-lever being provided with a restoring-spring 6 and having pivoted on itself at 7 a snblever 8, which is slotted at its lower end to cooperate with a fixed abutment and is connected at its upper end by a link 10 with a type-barll which is one of a circularly-arranged series secured in any sui-table manner to a segmental type-bar supiofror'n'fthe p o through the strap-L 40; tends. constantlyfto draw the carriage leftward acrOss 'tIie -ma ff v'vard-and' 'ermitt ing it' -o'n the return' st Th s vibratory, rnovementof:thexingiroek 5o causesZthe; escapement-Ldogs 3 1 to -;coopera;te

in a manner :with thej-escapement+* ashifting mechanism of known construction, (not shown but for the m oses of the invention; it is immaterial w et er the segment i'is-of the shiftable or non-shiftable variety.

Thetype-bars 11"are adapted to cooperate- :ceived -'m oppositely disposed grooves infixed-guideways 19, thelatter being secured "to" brackets 20, fixed to the top plate 3; 'A

.rfiifeed-rack 21 is securedv to the free'ends of arms 22, which are fixed to the inner-ends 0fshort rock-shafts 23, having bearingsin the,

.side bars 16 of the platen-carriage; rFixedly" secured to the outer end of eac rock-shaft e0 23 is a .forwardly and. upwardly projecting. "arm 24, terminating in 'a ifingervportion or u release-key 25. A spring 26 serves to main tain the feedrack 21 normally in=engage 'inent' 'with. a feed pinion 27, fix d to the f01- jz 'slsward end of ashort shaft 28,'the latter hav- :ii gits bearingin a bracket 29,.s'ecured to the" topplate. Anescapement-wheel 30is fixedly e.- mount e'd.on the'rear end of the shaft 28in posi' 1;1 to cooperate with escapementgdogs 3T0" mounted in a iv'ot'ed dog' r'ocker"32 have,

inganarm 33, w dchI-is connected a '34 with an. arm 35,-,projectingr;rearwardly ing'fiom'thetopplate..' Eixed to'the rear'end of thelshaftfi is 'abeveled pinion 56', and

from a universal bar 36, WlllCl1 ezitends-from .sideto side of the machine beneath the see;

5 "ries bf key-levers and is pivoted at 37 in the- 'sides ofthebase. v A spring-drum 38 is pivoted at- 39 in at fixed-part. of the machine and is connected by attend or strap'O, with a pinel-gde endg aten oarriage. The ldl'lifin' chine, and when any-key levert orithe'spaces bar (not' fshown) is depressed I thefl universjal bar'361s swung downward,"therebyithrough 1thegllink 34'frocking the dog-rocker 32j-fo of theke ever to returngto riorinelpo'sit wheel '30,'fwhich"is connected :throu h ,t "feed-pinion27 and feed-rack 2'1 with-11;. a1

riage,'andthe latter is permitted to b'eld'rawli"z one letter-space to the left by'the spring drum 38. when erther 'of the release-keys'25 is depressed, the rock-shafts 28 are rotated in their bearings tov swing the feed-rack-Zl up.' ward'a ainst the influence of the spring 26 6o until said feed-rack disengages from the feed- I pinion 27 By this movement of the feedrack the carria e is disconnected from its escap'ement mec anism, so that it may be moved rapidly leftward under the influence '65 ofthcsprmg-drum38.

'between the spools 1s threa The construction is such that each time the lever.

at the top ofa vertically-arranged shaft 50', which extends-downward-from the top plate -i. esdeiitr e thefdriiiiiigshmssz Theprg} erred'method of mountingtthe on An ink-ribbon 42 is wound upon and has its :ends secured, to ribbon-spools ,43, one mounted at each-side of the machine above thetop plate and forward of the platen. Cen-, ,trally of the machine that part of the ribbon v7o ed through a ribbon carrier orvvi'brat'or- 44, which is guided and supported in a guide-bracket 45, suitfably secured to the machine-frame; The lower end'of the vibrator 44 is pivotally conneoted with the forward arm of an operati'n lever 46, fulcruined at 47' in a lug 48, depen ingfrom the top plate, the rear endlof said operating-leverbeing connected by 'a'link 49- i with the arm '35; fixed'to the universal bar. 8o

universal bar is depressedu'nder the influence of a key-lever 4 the vibrator44 is caused tojmove upwardin a known-manner to interw pose the ribbon between the platen and the type on the .end of theparticulai' type-bar. which is connected with the depressed hey- Eachribbon-spool 43 is suit ablyl secured: .99

the-lower'endfof each 'verticalgshaft 50'-is"a. a

small beveled gear 52, whichmeshes with a of a horizontal and rearwardl'y extending "shaft 54, having bearings inlug'seiii, dependadapted to coijperate therewith is 'a} driiring -1 do 'lpinion5?,fiiredlyseured on a'driving'pr' ;POWGIiShEft-EB, WliiQh'fiXlBGDtlS fro side to side of} the machine beneath thegt opplate 'andjs slidably nonnted'in fixed'bearings '59. 1 ,Tiie driving-shaft 58 is connected withan'd .1 '0 5 ,Cahd to rotate? by the -spring--drunr-j 38- thef.spring-druni a known manner only v .1 1J0. "leftward and the. p nion 61 being 'so f'c'on-.

when the 'latter-tm'ns to draw the carriage neet djwith the drivin ,013 power'shaft' 5 8 that'the latterv iscau'se 't rotate withs id 1131011, but? has 'ndwi sei motion;indepeni of-m y' i vention it; is .de--

that n'dwise motion-'indn I me the driving-shaft is most clearly illustrated '1 in"-Figs, 3, 5, ;and 6, 'integr'al' 'with the pinion '61 is a sleeve portion 62,- which is perforated to permit the passage there through of. thedriving-shaft 58, on which the 1-2 5 pinion 61 and-the sleeve 62 are slidably a'rran ed. The sleeve portion 62 terminates at t e end farthestfrom the pinion in a flange 63, which is notched at the top' and bottom flap-engage with fingers; 64, extending'right- 13o hand spool isemptied thehorizontal arm of the elbow-lever 69 serves to retain'in non' portlon 62 maybe moved endwise independently of the driving-shaft 58 and in a manner subsequently to be described. At all times, however, enga ement tween the driving-shaft 58 and through the arms 64 and the note inion '61 ed flange 63, so that whenever the pinion 61 isrotatedit will transmit rotary motion to the drivingshaft 58.

- anism, as. above describe It is to be understood that each ribbon-' ha train of mechwith a beveled pinion 56. I The beveled drivin -pinions 57 are so arranged upon the power-s aft '58 that only 'oneof said driving-pinions is engaged at a time with its associate pinion 56. To

spool 43 is connected throu accomplish the alternate engagement of "thedriving -.pinions 57 with their respective associated pimons other, and vice versa, the power shaft 58 is caused to move endwise in any ner. .One ineans of causln in the United States patent to andCarlGabrielson; No. 703,339, dated-June Figs. 7,

the mechanism 111st referred In order not to complicate the drawings,

to has been illustrated se arately from'the other devices and will be ound diagrammatically shown in l 8, and 9,, which will now be briefly described, the said atentbeing available for a fuller-and more detailed description. 8,. and 9, 69 designates an elbow-lever pivoted to the under. side s 001 43 and retained for the greaterpart of the time in the position indicated in -Fi {8 folds of the ribbon 42, which, it wilbe noted, with the parts positioned as shown 1n Fig. 7, is wound ofi the right-hand spool; and on the left-hand: spool. Until the rightworking position a camlate 70, s1idably secured to the under si e..o'f the 'spool 43. When the, ribbon has been-compietelynnwound from the spool, it releases the upright arm of the elbow-lever 69, thereby permitting the'cam-plate to slide verticallyi downward to'the position indicated ii1 g. 9, n which position the cam-surface 71.1s adapted is maint ained- .be-

56, and thereby to cause i the ribbon to.wind from one spool to the.

known man this endwise movement of the driving-sha t is that shown Jacob Felbel -Felbel and Gabrielson of the right-hand rlbbon- "a ong in the that the left-hand ribbon-spool is Referring- .to Figs. .7, A

1 fixed part of the machines 72, cams 'with its. associate pinion best appears in Figs; key 78, carried bya an actuating-link 86',

to engage with an upright pin 72, secured at one end of a horizontal spring-pressed lever 73, the other end whereof normally contacts with and presses rearwardly the upright arm "'74 of a spring-pressed slide-rod 75. The

rear end of the slide-rod is bentlaterally and forwardly, terminating in a "trip-pin. 76, which normally is out of mesh with a worm 77, fixedly secured to the driving-shaft 58. As the ribbon-spool continues to rotate after the cam-plate 70 has dropped to operative position, the cam facefil, acting upon the pin the horizontal lever 73 againstthe pressure of itsspring 7 3" to the position indicated in Fig. -7, thereby allowingthe sliderod'7 5 to be moved forward by its spring 75 until the trip-pin 76 engages with the worm 77. After this engagement takes place the driving-shaft 58 as it-is rotated during the o 'era'tion of the machine will be wormed direction of the arrow in Fig. 7 until'theright-hand driving-pinion 57 meshes 56 and the corresponding left-hand pinions disengage, there by reversing the-longitudinal feed of the rib bon. As the ribbon begins to wind back on the right-hand spool it will press the upright arm of the elbow-lever 69 againstthe spool-- core, restorin said lever, and with it the cam- ,l'ate 70, to the position indicated in Fig' 8. hen the cam-plate 70 is moved upward, it

releases the horizontal lever 73, permitting the latter to again act upon the slide-rod 75 to push said slide-rod rearwardly and to restore the trip-pin 76 to non-workin position, the spring 73' being strong enoug to overcome the spring 75. i It will be understood rovided witha similar train-of mechanism w 'ch will operate in.a=si1nilar manner when said spool is emptied of the ribbon.

. At the right-hand side of the keyboard, as 3'and 4, is a tabulating key-lever 79, which is ivoted at 80 to, a bracketsecured' to the liame of the machine, said key-lever being provided with, a restoringespring 81., The ey-lever 79 carries a laterally-projecting in 8 2, which extends into a slot 83, formed in a sublever 84, which is pivoted at to a The rear end of the sublever' 84 is pivotally connected with which extends upwardly from the sublever through an opening in thetop plate and. is-pivotally con-- nected at its upper end with a crank-arm 87, which is lsecured tothe left-hand end of a rock-shaft or -oscillatory stop-rod 88. A spring 89 surroundsthe link 86 and.l earing at the lower end against the 'irame of the ma chine and at the upper end against a collar 96. secured to the link 6, tends to restore the. link and the parts connected thereto to normal position, and a .-.=h-p-collar Ei-u the downward movement oi said in l, Th

IIC

' stop rod or bar 88 extends in the direction of travel of the carriage and is supported in ears 9 1, projecting rearwardly from the brack- 1 ets 20. The stop rod or bar 88.may be pro Wardly of movement of the stop 95;

vided with a scale corres onding with the usual carriage-scale, and t e front and back sides of the bar are serrated r notched, as

indicated at 92, the serrations being adapted to receive detachable and adjustable stop members 93, having -forwardly and uprojecting stop-lugs 94. Secured to the bac rail 17 of the carriage is a. rearwardly-projecting stop 95, which is adapted to coact with'the stop-lugs. 94 ofthe stop members 93, thoughsaid stop-lugs, as indicated in Fig. 1, are normally 7 Proiectmg inwardly and forwardly from ,theco lar 90 on the actuating-link 86 is a pin or' abutment 96, which coacts with the outer or,as viewed from the rear of the machine, lefthand hook-likeend of a lever 97 ,pivotedfat -98toa'lug 99,-depending from-the top plate.

The lever 97 provided with a stoph t eun- ,which is normal y maintained against derslidefof the top plate 3 ,by a spring 100, coiled around the pivot 98. An elbow or belL-crank lever 101 is pivoted at 102 to a lug 103, depending from the top plate. v104 of the lever 101 extends downwardly behind; the driving-shaft 58 and then for-- wardly beneath thelatter,and the other arm and-in t projects-toward the center of the machine and is offset rearwardly,'.being provided at its free end with a rearwardly-extending in or abutment 106, which is above e ath of the inner free end of the lever 97. iii rack-lifter 107, perforated at its lower end to fit over the pin 106, extends up wardly through the top-plate of the machine and is perforated at'108 to embrace the forward part of the shaft 28 and the bearing- -bracket 29, which latter is somewhat out 'away'justback of the escapement-pinion 27. The top 109 of the perforation 108 -bears normally-against the brackets 29 and serves as a stop to limit the downward movement of the rack-lifter 107. Ateach side of the shaft 28 the rack-lifter 107 is provided with liftingshoes 110, which project toward the front of the, machine and stand normally beneath but out of contact with the teeth of March 7, 1905, although differing therefrom somewhat in detail, particularly in the .con-

struction of the carriage-releasing mechanism. Other constructions, of tabulating w1ll contact with t out of the'path One arm my invention. It will be understood that when the tabulating key 78 is depressed adequ-atel the stopbar 88 through the sublever 84, lin 86, and crank-arm-87 will be rocked forwardly until the stop-lugs 94-are in the path of the carriage-stop 95, and at the same time the pin 96 will depress the outer end of the lever 97, the inner end whereof, moving upward from the 1position shown in Fig. 3, e pin 106 and elevate the rack-lifter 107, causing the shoes 110 first to contact with the teeth of the rack 21 and then to swing the latter upward out of engagement with thefeed-pinion 27 to the positionindicated in Fig. 6. The parts are so proportioned that during this operation the li 111 on the rack lifter willnot be broug it into contact with therack21. I s

The right-hand fixed bearing 59 of the rib-- hon-driving shaft 58 is formed at the bottom with a cut-away or groove 1 13, which receives the outer or, as viewed from the rear, righthand end of a switching member or shifting plate 114. The late 114 is formed with a slot 115, throng which passes a vheadedshoulder screw 1 16, the-latter screwing into the bottom of the groove 113 and serving to support and guide the shifting plate. The inner end of theshifting plate is provided with an upwardly-extending arm 117, which is perforated to permit of the passage therethrough of. the driving-shaft 58. The outer or, as viewed in Figs-3, 5, and 6, right-hand face of the arm 1'17 normally contacts with the inner or left-handedge'of the arm 104 'of the elbow or bell-crank lever 101; An angled piece or bracket 118 is adjustably secured by a headed screw 119 on the upper surface of the/plate 114, and the upstanding arm 120 ofthe angled piece is posltioned to enter the depression 68 in 'the sleeve 62., A wire spring 121 is secured by a screw 122 to the right-hand bearing 59 and enters a hole the groove 11-2 on r in the plate 114, saidspri'ng normally maintaining said plate 114 in contact with the arm 104 of the elbow-lever 101 and with the inner edge of the slot 15 against the shoulderscrew 116-; f

From the foregoing description it will be understood that while the carriage 'isunder the control of the escapement devicesand is being fed from right to left a letter-space distance at a time as 'the printing-key are manipulated the connections between the inkribbon and the carriage spring-drum remain undisturbed. The result 7 is that as the spring-drum ispermitted to turn to draw the 1 carriage leftward a letterespace distance the prising pinions 60 and 61, driving-shaft 58,

pinions 57 and'56, shaft 54, pi nion 53, gear wheel52, upright shaft 50, and ribbon-spool 43. It will be noted that this connection between the ribbon-spools and the carria epower is a direct one in the sense that t e train of mechanism composing said connection does not include or contain any of the j members of the escapement devices or other power which embrace or include elements of,

devices performing functions in the work of the machine not immediately relating. to the ribbon mechanism. The ribbon-feeding mechanism described herein difiers in this respect from that class of ribbonfeeding mechanisms which, although the ribbon-feeding power is derived from the carriagepower ql.

e. the spring-drum 38in this case-never theless has connections with such carriage:

' to ribbon-feeding mechanism havin 'the characteristics above noted, but is applicable to any kind or style of ribbon-feeding mechanism.

When one of the release-keys 25' is depressed, the rock-shafts 23 are rotated in their bearings, swinging the arms 22 upward and lifting the carriage-rack 21 out. 'of engagement with the escapement-pinion 27 thereby putting the carriage directly under the pull of the power residing in the springdrum 38. As the carriage-rack 21 is lifted .the lower side of the longitudinal groove 112 will contact with the lip 1 1 l'of the rack-lifter.

107, which lip normally enters said groove 112 without touching the sides or bottom thereof, as best indicated in Fig. .3, so that as .the'carria e is movedback and forth from side to si eof the machine no friction is generated by these parts. As the upward vmovement of the rack 21 is continued the rack-lifter 107- is caused to rise with it, swinging the arm 105 of the bell-crank lever 101 upward and-causing the arm-104 of said lever to act upon theupright arm 117 of the switching member or plate 114 to slide said plate to the left as viewed in Fi 5 against the pull of the wire spring 121. s the plate ],14 is slid leftward the pinion 61 .is also 55.

. 120 of the bracket 118 wit drawnleftward out of mesh with the pinion by reason of the enga ement of the arm the depression or groove 68 inthe sleeve 62. The parts will now be in the position represented in Fig3L 5, wherein it will be noticed that the note ed flange 63 has been slid inward or to the left,

- so t clutch member 65, the notches of the flange at it is close to the body portion of the remainin at alltimes engaged with the fin- .gers 64 o the. clutch. The-result is that as.

the carriage is released by pressure on one of the release-keys 25 the beveled pinion 61 on the driving-shaft 58 is disengaged from the beveled pinion 60, connected with the carriage-power, thereby breaking the connection between the carriage-power and the ribbon, so that the latter will not be fed, but

. will remain quiescent as the carriage is moved by hand, as it is termed, from right to left across the top plate. When the pressure is withdrawn from the release-key 25 allowing the rack 21 to reengage with the pinion 27,

the rack-lifter is permitted to move down- .ward until the stop 109 contacts with the bracket 29, the bell-crank lever 101 returning to normal (position therewith and the plate 114 being awn by the s ring 121 back to normal position, as indicated in Fig. 3. on the return movement the. teeth of pinions 60 and 61 should not mesh, the carriage-rack, rack-lifter, and bell-crank lever 101 will return 'to normal position, and the two pinions 60 and 61 willbe pressed together by the spring 121,'so that during the first letterspace movement thereafter imparted to the carriage the teeth of the two pinions will be forced to engage.

As hitherto described, when the tabulating-key 78 is depressed it brings the stoplugs 94 into the path of the carnage-stop 95 and lifts the inner end of the lever 97 into contact with the pin 106,-elevating the racklifter 107 and causing the convex shoe's'llO-to contact "with the teeth of the rack 21 and'to swing the latter upward out of engagement with the feed-pinion 27, therebyfreemg the carriage from the control of the escapement devices to permit it to be drawn or jumped rapidly leftward under" the influence of the carriage-power until the stop' 95-contacts with the lug 94- of a stop member 93. The pin 106, it will-be recalled, is fast to the free end of the arm-105 of the bell-crank lever 101, so that as said pin 106 is lifted by the lever 97 the arm 104 of the bell-crank will act on the upright arm 117 of the plate 114 to draw the latter leftward as viewed in Fig. 6 against the pull of the spring 121. switching member or plate 114 is slid leftward the arm 120 of the bracket 118 will act on theisleeve 62 to slide it and the beveled pinior'i' fil leftward along the driving-shaft 58 until said pinion 61 is disengaged from the beveled pinion 60. The parts will now .be in the position indicated in Fig. 6. It will be observed that when the tabulating mechan-- ism is operated to free the carriage from the.

As the, I

control of the escapement devices and per rapid movement or jump of the carriage.

When the. tabulating-key 78 is released, it,

' together with the stop-bar 8 8 ahd the connections between them, will be restored. to. normal position by the springs 81 and 89,'and.

the lever 97 will be restored to normal position, with the stop 97 against the under side of the top plate, by the spring 100. [The restoration of these parts permits the racklifter 1'07 and'the lever 101 to return to normal position, while at; the same time the plate 114 will 'be' drawn back under the influence of the spring 121 and the pinion 61 will reengage with the pinion 60. The parts will then again be in the position represented in Fig. 3.

It will be observed that the carriage isdisengaged or freed from thecontrol of the escapement devices by duplex means, either the release-keys and the train of mechan ism controlled thereby or the tabulating-key 78 and the train of'mechanism controlled by it being available for the purpdse. It will also be noted that the lifting member or rack lifter serves to lift the rack when the tabulatingkey is operated, but that when a release-key is operated the rack lifts the racklifter, reversing the relations of the two parts.

, During-the operation of thep-arts by the release-key the lever 97 and the tabnlating mechanism by which said lever is operated remains quiescent;' The ribbon remains quiescent throughoutvthe time the carriage is disengaged from the'escapement, so thatwhen the carriage is reengaged with its escapement devices and a printing-key is ac tuated a type impression will be made on the ribbon immediately following the last pre: ceding impression and as thoughthere had been no disturbance of the relation between :the carriage and its escapement mechanism in the interval between the twotype impressions,nwhereas with a ribbon-feeding mechanism like that described, but with my present invention omitted, there would be an unused space on the ribbon between the two type impressions corresponding in length with the' space which the carriage was jumped' or fed while disconnected from it's escapement mechanism. It will therefore be readily apparent that by the employment of my present invention this defect will be obviated, and the ribbon will be exhausted. in an even and uniform manner, so that the character of the type impressions on the paper or work sheet will be uniform. It will further be observed that with a ribbon-feed- .ing and ribbon-reversing mechanism of the drop on top of, the pin 72", so-that thecamsurface 7 1 could not act u on said pin untilanother full turn of the ri bon-spool had been made, or in some other way the reversing I mechanism'mightfail to act properly and the end of the ribbon might in consequence be torn from the exhausted ribbon-spool or the feed of the ribbon be stopped. By the employment of my present invention, however, it will be noted that the ribbon-reversing 'mechanism' can operatev only while the carriage is in engagement with its step-bystep feeding mechanism and that-too rapid revolution of the driving-shaft- 58iis prevented, so that ample time for the proper working of the ribbon-reversingmechanism will always be given.

. Various changes in the construction and arrangement ofthe parts may be efiected within the scope of my invention. i What I claim as new, and desire to secure by Letters Patent, is-

1. In a-type-writmg mac ing to impel the carriage in one direction; carriage escapement devices; means for releasing the carriage from said escapement devices; ribbon-spools; connections independent of theescapement devices between the ribbon-spools Y and the carriage-impelling means; and means for automatically discon v hine,-.the combinatlon or a carriage; means constantly tende necting the ribbon-spools from the carriageimpelling means when the carriage is -re-' leased by said releasing means.

2. ln-a type-writing machine, the combination of a carriage; means constantly tending to impel the carriage-in one direction; carriage escapement devices; means for releas ing the carriage fromsaid escapement devices; ribbon-feeding 'mechanism connected with said carriage impelling. means, said ribboil-feeding mechanism being independent of the escapement devices and of the carriage and means automatically operative when the carriage is released from 1ts escapement deism inoperativeand thereafter automatically" 1 IO vices to render the ribbon-feeding mechanv to render the ribbon-feeding mechanism again operative. g

3. In a type-writing machine, the'combi-' nation of acarriage means constantly tending to impel the carriage in one direction; carriage escapement devices; means for releasing the carriage from said escapement devices; ribbon-spools; connections independent of the escapement devices between the ribbonspoolsand the carriage -impelling means; and means for disconnecting the ribbon-spools from the carriage-impelling me ans,

said disconnectingmeans being automatically actuated. a

4. In a type-writing machine-,the combination ofa carriage; means constantly tend inglto impel the carriage in one direction; carriage escapement devices; -meansfor releasing the carriage from said escapement devices; ribbon-spools; connections independent of the escapement devices between the ribbon-spools and the carriageimpelling means; and means for disconnectingthe ribbon spools from the carriage impelling means, said disconnecting means being automatically actuated by the carriage-releasing means. 7

5. In a typeavriting machine, the combination otacarriage; means constantly'tending to impel the carriage in one direction; carriage escapement devices; duplex means for releasing the carriage from said escapement devices; ribbon spools; connections independent iii the escapement devices between the ribbonspools and the'carriage-impelling means; and means for disconnecting the ribbon spools from the carriageimpelling me ans when the carriage is released by either of the duplex means. 7

6. In a type-writing machine, the combination of a carriage; means constantly tending to impel the carriage in one direction; carriage escapement devices;.duplex means for releasing the carriage from said escapement devices; ribbon spoolspconnections independent of the escapement deyices and ofthc' carriage between the ribbon-spools and the carriage-' npelling means; and means for dis connecting the ribbon-spools from the carriage-impelling means when the carriage is released by either of the duplex means.

7. In a type-writing machine, the combination of a-carriage; means constantly tending to impelthe carriage in one direction; carriage escapement devices; means for releasing the carriage from said escapement devices; ribbon-feeding mechanism connected with said carriage-impelling means, said ribhon-feeding mechanism automatic means for preventing the"opeiat1on of sa d ribbon-reversing mechanism.

8. In a type-writing machine, the combination of a carriage; means constantly tende ing to impel the carriage in one direction; carriage escapement devices; means for releasing the carriage from said escapement devices; ribbon-feeding mechanism connected with said carriage-impelling means, said ribbon-feeding mechanism being independent of the 'escapement devices; automatic means for reversing the. ribbon-feeding mechanism; and duplex means automatically operated to prevent the operation of said ribhon-reversing mechanism. I 9. In a type-writingmachiiic, the combination of a carriage; means constantly tending to, impel the carriagein carriage escapement devices; means for sepae rating the carriage from said escapemen't devices; ribbon-feeding mechanism connected with. said carriage-impel being independent of the escapement devices; automatic means for reversmg the ribbon-feedmg-mechamsm and .one direction ling and indekey from its escapement by said release-key to pendent both of the escapement devices and, of the carriage; automatic means for revers-- ing the ribbon-feeding mechanism; and automatic means for preventing the operation of said ribbon-reversing mechanism.

10. In a type-writing machine,-the combination of a carriage; means constantly tend ing to impel the carriage in one direction; carriage escapement devices; connections comprising a rack and pinion between the carriage and said escapement devices; a releaseon the carriage operative to disconnect said rack and pinion; ribbon-feeding mechanism connected with said carriage-impelling means and independent of said escape'ment devices; and means operative by said releasekey to render the ribbon-feeding mechanism inoperative.

11. In a type-writing machine, the combination of a carriage; means constantly tending to impel the carriage inone direction; car riage escapement devices; connections between the carriage. and said. escapement d.e-- vices; a release-key on the carriage operative to break the connection between the carriage and its escapcment devices; ribbon-spools; connections between said ribbon-spools and said carriage-impelling means; and a switch-- ing member operative by said release-key to break-the connections between said ribbon- .spools and said carriage-impelling means.

12. In atypewriting machine, the combination of a carriage; means constantly tending to impel thecarriage in one direction fearriage escapemcnt devices; a release-key on the carriage adapted to separate the latter devices; a ribbon-driving shaft connected with said carriage-impel-' ling means; and a switching member operated break the connection between said d riving-shaft and said carriage; impelling means.

13. In a-type-writing machine, the combie nation of a carriage; means constantly tending to impel the carriage in one direction; carriage escapement devices; a release key on the carriage adapted to separate the latter from its escapement devices; a ribbon-drivin'g shaft; a pinion constantly connected with. said shaft; a-pinion connectedwith said carriage-impelling means and with said first namedpinion; and a switching member connected with said first-named pinion and operative by said release-key to separate said pinions. Y a

14. In atype-writing machine, the combination of a carriage; carriage impelling or driving means; carriage escapement devices;

'a release key on said carriage adapted to separate it from 1ts escapement devices a ribbondriving shaft; a driving-pinion clutch mech:

anism between said pinion and said shaft:

a pinion connecting said carriage-impelling means with said d living-p iiiion; and a switchi112. member constantly connected with said SIO driving-pinion and operated by said releasekey to separate said. pinionsi '15 In a type-writing machine, the combi-- ribbon mechanism connected with said can riage-im elling means; a switching member operate by said bell-crank'to render vthe "IlbbOIl mechanism inoperative; and a release-key on the carriage adapted to sepa rate said carriage-rack from its actuate said lifting member. 7

- 16. In a type-writing machine, the combination of a carriage; carriage-impelling means; carriage escapement devices; a release-key operative to separate the carriage pinion and to from its escapement devices; ribbon-spools;

a ribbon-driving shaft; connectionsbetween said driving-shaft and said carriage-impellingmeans; means for shifting said driving- 1 shaft longitudinally to connect it alternately with said ribbon-spools; and a switching member operated by said release-key to break the connection between, said drivingshaft, and said carriage-impellii1g means.

v 1.7. In a type-writing machine, .the combination of a carriage; carriage-im'pelling "crank connecting said switching member means; carriage escapement devlces; connec- I tionscomprismg a rack and'pinion between said carriage and its escapement devices; a

lifting member s'lidably connected with said carriage-rack; a switching member; a bell-- with said lifting member; ribbon-spools; a ribbon-driving shaft; a driving-inion "0on nected with said carriage-impel ing means;

clutchdevices connecting said driving-pinion with said driving-shaft automatic means for shifting said driving-shaft longitudinally to cause it to actuate alternately said ribbonspools; and a release-key. adapted to separate said carriage-rack from said pinion and also adaptedito actuate said lifting member.

' -18. In a type-writing machine, thecombination of a carriage; carriage-impelling means; carriage escapement devices; a tabulating-key operative to separate the carriage from its escapement devices-and to permit it -to move freely to a predetermined point; ribhon-feeding mechanism connected with said carriage impelllng means; and nleans operative'by said tabulating-key to render-the ribbon-feeding mechanism inoperative.

nation of a carriage; carriage impelling means;'carriage escapement devices; a tabulating-key operative to separate the carriage from its escapement devices and to permit sa1d carriage to move freely to a predetermined point ;.ribbon-feeding mechanism connected with said carriageimpelling means and independent of said escapement devices and means operative by sa1d tabulatlng-key to render the ribbon-feeding mechanism inoperative.

20. In a typeewriting machine, the combination of a carriage; carriage-impelling tions between the carriage and its escapement devices; a tabulating-key operatlve to break the. connection between the carriage and its escapement devices to permit said' carriage to move freely to a predetermined point; ribbon-spools; connections between said ribbon-spools and said carriageimpel:

ling means; and a switching member operameans carriage escapement devices; conn'ective by said tabulating-key to break. the connection-between said ribbon-spools and sa1d carriage-impelling means.

21. nation of a' carriage; carriage-'impelling means; carriage escapement devices; a tab- In a type-writing machine, the combiulating-key operative to separate the car riage from its escapement devices; a ribbondriving shaft connected with sa1d carriage 'impelling means; and a switching member o erative by said tabulating-key to break t e connection between said driv1ng shaft.

and said carriage-imp'elling means.

22. In a type-writing machine, the combination of' a carriage; carriage-impelhng means; carriage escapement devices, a tabulating-key adapted to separate the vcarriage from its escapement devices to permit sa1d carriage to move freely to a predetermined point; a ribbon-driving shaft; 'a-driving-pinroo ion constantly connected with said shaft; a v

pinion operative by said carriage impellin means and connected with said first-name pinion; and a switchingmember connected with said first-named pinion and operative by. said tabulating-key to separate said pinions;

23. In a typewriting machine, the combination of 1 'a carriage; carriage-.impellingmeans; carria e escapement devices a tabulating-key a apted to separate the-carriage pinion operative by said carriage-impellin f H means and connected with said'first-tname pinion; a switching member connected with said first-named pinion; and operative by andmeans'adapted to cause positively aret p engagement between said pin ons. 19. In atypa-writlng machlne, the combi- I 2 4. a type-writing machine,'the combination of a carriage; carriage-impelling means; carriage escapement devices; .a tabf ulatin -key operative to separate said carriage' om its escapement devices to permit sa1d carriage to move freely to a predetermined point; aribbon-driving shaft; a driv- 1' 2O said tabulating-key to separate said pinions;

ing-pinion; clutch mechanism between said pinion and said shaft; a pinion connecting said carriage-driving means with said driving-pinion; and a switching member constantly engaged with said driving-pinion and operative by said tabulating-key to separate said pinions. Y

25. In a type-writing machine, the combination of a carriage; carriage-impelling means; carriageescapement devices; connec tions comprising a rack and pinion between said carriage and its escapement devices; a rack-lifter a bell-crank connected therewith; ribbon mechanism connected with said carriage-driving 'means; 'a switching member operative by said'bell-crank to render'said ribbon mechanism inoperative; and a tabulating-key which is operative upon said bellcrank.

26. In a type-writing machine, the combination of a carriage; carriage-'impellin'g means, carriage escapement devices; a tab: ulating-key operative 'to separate the carriage from its escapement devices and to permit said carriage to move freely to a prede-- termined point; ribbon spools; .a ribbondriving shaft; connections between said driving-shaft and said carriage-impelling' means; means for shifting said driving-shaft longitudinally to connect it alternately with said ribbon-spools; and a switching member operative by said tabulating-key to break,

the connection between said driving-shaft and s'aidcarriage-impel1mg means,

27. In a type-writ ng machine, the combi-- nation of a carriage; carriage-impelling means; carriage escapement devices; connections comprising a rack and pinion be-f tween said carriage and its escapement devices]; a rack-lifter; a switching member; a bell-crank connectin said switching. mem-' be: with said rackifter; ribbon-spools; a

ribbon-driving shaft; a drivinginion connected with said carriage-impel mg means clutch devices connecting said driving-pini'on with said driving-shaft; automatic means or shifting said driving-shaft longitudinally to cause it to en age alternately with said ribbonspools; a ever operative uponsaid bell-crank; anda tabulating-key ad'apted'to operate said lever.

A 28. In a type-writing machine, the combi nation of a carriage; carriage-impelling means; carriage escapement devices; connecions comprising a rack and pinion between aid carriage and its escapement devices; a rack-lifter; a switching member; a bell-crank connectingv said snitching member with said rack-lifter; ribbon-spools; a ribbon-driving shaft; a driving-pinion connected with said carriagednipelling 'means; clutch devices connecting said driving-pinion with said drivingshait; automatic means for shifting I said driving-shaft longitudinally to tau'se it to engage alternately with said ribbon-spools;

a 'spring pressed lever operative upon said bell-crank; a tabulator rack-bar; an actuating-link connected with said rack-bar and operative upon said spring-pressed lever; and

a tabulating-key lever connected with said actuating-link, j

29. In. a type-writing machine, the combination of a carriage; carriage-impelling means carriage escapement devices; connections including a rack and pinion between said carriage and its escapement devices; a

rack-lifter; ribbon-feeding mechanism connected with said carriage-impellirig means; connections between said ribbon-feeding mechanism and said rack-lifter; key-operated means adapted to operate said rack-" lifter to break the connection between the ribbon mechanism and the carriage-impelling means; and separate key-operated means to actuate said rack-lifter to separate said carriage-rack from said pinion, said lastnamed means being also operative to break the connection between the ribbon-spool mechanism and the carriage-impelling means.

30. In aitype-writing machine, the combination of a carriage; carriage-impelling means; carriage escapement device's connections including a .rack and pinion between said carriage and its escapementdevices ribbon-spools; connections between said ribbonspools and said carriage-imp'elling means; key-operated means-adapted to separate said carriage-rack from said pinion; and

means actuated by said carriage-rack to break the connections between said ribbon- 32. In a type-writing machine, the combi nation of a carriage; carriage-impelling means; carriage escapement devices; connec tions including a rack and pinion between said carriage and its escapement devices; ribbon-spools; connections between said ribbonspools and said carriage-inipelling means; key-op'erated meansadapted to separate said carriage-rack from said pinion; means actu- IZO ated by said carriage to break the connection between said ribbon-spools and said carriageimpelling means; key-operated means adapt-- ed to break the connection between said ribbon spools and said carriage impelling means; and means actuated by said key-operated means to. lift said cairiage-rack from the pinion to release the carriage. V

33. In a type-writing machine, the COIIlDlnation of a carriage; carriageimpelling .means; caijiage escapement devices; ribbonfeeding mechanism connected with and cperated-by said carriage-impelling means; a release-key on the carriage adapted to separate the latter from its escapement devices and also adapted to render the ribbon-feeding mechanism inoperative; and a tabulating-key in the keyboard adapted to separate the carriage from its escapement devices in 10 order to permit said carriage to move freely of June, A; D. 1905.

GEORGE A, SEIB. Witnesses:

JOHN S. MITOH ELL, W. J. LOGAN.

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