US934677A - Ribbon mechanism. - Google Patents

Ribbon mechanism. Download PDF

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Publication number
US934677A
US934677A US2770??0?A US934677DA US934677A US 934677 A US934677 A US 934677A US 934677D A US934677D A US 934677DA US 934677 A US934677 A US 934677A
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Prior art keywords
ribbon
vibrator
platen
feed
key
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US2770??0?A
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Emmit G Latta
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HARVEY A MOYER
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HARVEY A MOYER
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J35/00Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms

Description

v B. G. LATTA. `RIBBON MEGHANISM. APPLIUATIOHFILHD annua. 1905.
Patented sept-21. 1909.
8 SHEETS-SHEET 2.
lne .may 2a.
WZ# f E. G; LATTA'; mmm usonmsn. APPLIOAIIOI FILED 839125. 1806.
Patentedeph 21. 1909 E. 'G. LATTA. nmol: Hammam `AIPLIOATIOl FILED SEPT. 1905.`
Patented Sept 21, r1909 8 SHEETS-SHEET 3.
,-1 l @i 5W ard p MQ;
E. G. LATTA.
A BIBDOIIEOHLNISI.
Arrmlu'rxal FILED un. u. nos.
934,677. mem 8m21.190s).
lawn/Zar;
B. G. LATTA.
RIBBON MEUHANISM.
APPLmATmN rum sums. 1905.
934,677. Patented sept. 21, 1909.
E. G. LATTA. RIBBGN MECHANISM.
APPLIUATION funn sm'T. 190s.
Patented Sept. 21, 1909.
B SBEETS-SHEBT 8.
UNITED sTArEs parlanti* oEEicE.
EMMrr G. LATTA, or sYnAcUsE, NEW YORK, Assrdirit or' oma-HALF To HARVEY A. MoYER, oF sYnAcUsE, maw
YORK.
RIBBON mnomms.
Specification of Lettera Patent.
Application filed September 5, 1905. Be'ial No. 277',0B3.
T o altwhom it may concern.'
lic it known that I, EMMIT G. 'LATTAJ a citizen of the United States, residing at Syracuse, in the county ofiOnondaga and y State of New York, have invented a new und nset'nl Improvement in Ribbon Mechanisms. ot which the following isa specification.
This invention relates to ribbon mechanisms for typewriting machines, and more j nirtirnlary to ribbon mechanisms for front l. .sti-ilol typewriters iii which the type bars have` two .sets of type and the platen is norinaliy in printing relation with 011e set of typtI and is shifted to printing relation with t the other set of type. Sonie features ofthe im cntion, however, are-equally well adapted for machines in which the type-bar segment is shifted insteadof the platen, and soine of the features are adapted for use with other than :front strike machines.
The objects of the invention are to produce a poner-driven ribbon tt'eedmeChaniSin of simple and desirable construction involving the minimum number of parts; to provide simple ineens for automatically stopping the feed of the ribbon to prevent injury to the ribbon, and for giving audiblefnotice when the ribbon is at the end of its run; to provide :i ribbon feed reversing mechanism having an operating key or part which isl always moved in t e saine direction to reverse the \ribbon regardless of the direction in which the ribbon is feeding; to provide novel .means for guiding the ribbon and for vibrating the same portion of the ribbon to and from the printing pointin two diierent po-` sitions of the platen, for holdi" the ribbon stationary in position for prinwg and permitting the ribbon to be moved to expose the printing point whenever desired, and for iolding the ribbon stationary out of printi ing position; and to throwing the ribbon fee the ribbon is held ont of printing relation.
Ant'ither object of the invention is to improve the ribbon mechanism ,offtypewritin machines in the respects hereinafter specifie and set forth in the claims.
In the accom anying drawings, consisting of six sheets: lligure 1 is a longitudinal sectional elevation of a typewriting machine provided witliribbon mechanism einbocls ing'l the invention, showing the norinal positiolr 55 ot the parts. Fig. 2 is a fragmentary hori- (provide means for l out of action when zontall sectional plan view thereof. a transverse sectional elevation thereof in liiie 3 3, Fig. l. sectional elevation simi-lar to Fig. 1, show- .,ui: the position of the parts when the ribbon scale,
of the ribbon A r cl1in the carriage b which the machine to produce the letter spacing,
type bars. ldrawings with two sets of type, platen ona segment and rearwardly againstithe'ront side of the platen through the medium of auxiliary leversn c each pivoted 'at its lower end on bar or support ciconnected at its upper end by a link to one of the type bars and having between' its ends connection ca When a ke thereon sli es lever toward this, slot, causes platen with type-bar action is folly described in Patent No. 819,367. granted May l, 190", to Moyer Fig. 3 is Fig. 4 is a. fragmentary locked down out of printing eposition. Fig. 5 is a fragmentary sections. ovation of the vibrating mechanism, showing the position of the ,parts when the platen is shifted.
Fig. 6 is a fragmentary View similar to l, showing the position of the parts to hold the lower portion of the ribbon over the printing point. Fig. 7 is a fragmentary sectional plan, on an enlarged scale, of the ribbon feed reversing device, showing the same in a different position from that shown in Fig. 2. Fig. S is a sectional elevation of the feed reversing device in line 8-8,'F-ig. Fig. 9 is a sectional elevation, on an enlarged of one of the ribbon s ools and asso- Fig. 10 is a p an view of one spools and its seat. Fig. 11 is a horizontal sectional plan of the means for thrbwing the ribbon Yfeed out of action. Fi 12 is a fragmentary elevation of the ribbon vibrator with aribbon having fields of different character.
Like letters of reference refer to like parts inthe several figures.
epi-esente the main freine of the niathe rotatable platen journaled on travels transversely of ciated parts.
C one of the pvoted Atype-barsg'iiand D the lgey levers or finve keys for operating the In t e machine shown in the the typebars, which are provided are pivoted below the Sind/are operated ,tieni the key levers e; transverse a sliding or pin and slot with one of the key levers. lever is depressed the .pin c in-the slot of the auxiliary the ulcrum of the latter and together with the peculiar shape of the the type-bar to approach the an accelerating m'otion. This Pate-nieu sein. 21, 190e.
c toV swing upwardly is pivoted at its endsto the main frame at pomts e in rear of the platen. Theshift frame normally holds the platen in printing relation with one set of type on the type frame normally holds the platen in printing relation with the other set of type by the following mechanism: F represents a rock shaft journaled at its ends on the main frame and having a toothed segment f meshing with a gear pinion f connected by a. crank or eccentric fz and rod f* with the front portion of the shift frame. The rock shaft l has forwardly projecting rocker arms j which bear on the rear ends of shift levers r keys which are located near the opposite sides of'the machine, are pivoted between their ends conveniently on the transverse bar or support c", and extend forwardly to the key board. By depressing either of the shift keys G the rocker arms f are lifted, theiieby'frocitilng 'the "shaft F which, through the toothed Seg lent, pinion crank and rod described lifts the yihift frame to place the platen in its u per printing position, whici position is in icated in Fig, 5. This platen shifting mechanism is fully described in my application tiled June 14, 1905, Serial No. 265,217, and as therein eX- plained, ity is possible to shift the type-bar segment instead of the platen by a substantially similar mechanism. In so far as some of the features to be described are concerned, either the platen or the segment could be shifted.
H represents space keys or levers pivoted between their ends on the frame bar 02 and carrying at their front ends the usual thumb bar le. These space keys or levers are, as usual, connected to the carriage cscapcment for producing the letter and word spacing, by mechanism `which forms no part of the present invention and is not shown in the drawings.
The parts thus far mentioned are all more fully described in said applications and are thus brielly described herein to enable a propel' understanding of their relation and u. y J u coolneratlon with t hc rlbbon n'iechanlsnl.
may be of any ordinary form, are preferably splined on the upper ends of upr1 ht spool` s aft K and removably retains on the Vshafts by nuts lc screwed on the threaded esem' upper ends of the shafts. The nuts have crank handles hy which they can be screwed on and ofi' of the spool shafts and their threads are oppositel cranked nuts serve as liandles for turning th spools in the opposite directions necessary to wind the ribbon thereon without unscrewing the nuts from the s )ool shafts. k represents ribbon directin `evices, preferably in the form of hails W lich embrace the spools, and have inbent ends which fit in `central dcpreslsions im the spools and have holes through which 'the siool shafts pass. The central parts of the ails are seated in the slots z'2 in the spool seats, whereby the bails are held from turning, and are slotted vertically at k2 to receiye and guide the ribbon. The spool shafts K are journaled in upper and lower bearings in which they are adapted to slide endwise, or vertically, the upper bearing be ing preferably formed in the top of the 'frame and the lower bearings k3 on a transverse bracket la* secured by forwardly and downwardly extending arms le to a front cross bar la of the frame. The bails move vertically with the spool shafts and spools, which are shifted with the platen, and pre` vent the ribbon from wear and from twisting or folding where it passes out of the spool seats.
L, Figs. 2 and 3, represents the usual spring driven drum (connected to the car ringe by means not shown) for moving the carriage to the left. The spring druln is journaled on a shaft sup orted by a suitable bracket l or part of the rame.
t is a gear pinion journaled concentrically with the sprin drum and connected thereto by means whic 1 cause the pinion Z to turn toxthe leftywith the drum but permit the drum to turn independently of the pinion in the op )osito direction when the carriage is set back-for a new line. l'nthe construction shown, thepinion 1s loosely mounted on the drum shaft and is providedvwith integral ratchet teeth lgrengaged by a springfprcssed pawl Z pivoted on the spring drum.
Z is 'a horizontal shaft havin a gear wheel ZF fixed to its rear end and mes ling withthe pinion Z. This shaft l* extends forwardly under the left-hand endof the type-bar segment and at the left of the upright auxiliary .type-bar levers c and is lournaled in suitable bearinvs, preferably int ietransverse bracket /n and1 in a bracket Z at the rearof the frame. f i
lf is a bevel gear wheel which is splined or otherwise connected to t-he front end of the shaft l? so as to turn With the shaft andslide thereon, and which is yieldingly held by a coil spring l surrounding the'sheftl* in mesh with a bevel gear wheel Z splined on a transverse horizontal -reversin'r shaft l1" which is'journaled to rotate an slide endwise in bearngeltyreerably formed the pitched, whereby tbs .r
sans?? ansverse bracket c. The bevel gear wheel is heldffrom endwise movement between ,wo of the bearings for the reversing shaft. l Z are two bevel gear wheels which are fixed to the ends ofthe reversing shaft, are adapted to mesh res ectivel with bevel gear wheels l l spline on the l'o .er ends of the A spool shafts K, and are held against endwise `movement with said shafts by suitable means,
fiiubh as flanges on said wheels engaging in in the lower bearings for 'the spool shafts. The reversing shaft is in gear with s only one spool shaft at a time.
, With the reversin shaft l1 in the position shown in Figs. 2 an 3, the feed mechanism 'ust described can s the ribbon to Wind ov'rly on the left-h nd spool by the power Jof the carriage driving spring drum and, when it is desired to reverse the ribbon feed v so esto wind theribbon on the ri vht-hand spoolythe reversing shaft Z1 is simp y moved to the right fa-r enough to disengage the bevel ar at its left end from the gear on the le s ool shaft and cause the bevel gear at its rig t end to mesh with the gear on the right-hand s ool shaft. The bevel gear Z7 at tliejjironten of the 'ribbon feed shaft being held,` in mesh with its companion gear l by ti spring l, can slip in the gear l when the on is completely unw'ound from either spool and the strain on the feed gearing is t ereby increased. As the wheel slips u toth 1t gives audible notice that the ribbon feed should be reversed, and this notice is' repeated with each succeeding `tooth that slips andthe operator will soon notice it. This arrangement of the gears' also prevents vfthe ribbon from being torn loose from the 40 to be thrown out of action, as hereinafter' described. It will be observed that by the described arrangement of the reversing shaft adjacent to the spool shafts, only one forwardly foxtending shaft is necessary, thereby saving t one shaft and one pair of gears over angry Y "rangement in which the transverse shaft is L located at the rear of the machine and conecte'd tothe spool shafts by two forwardly 'extending shafts. The reversing shaft is movedY to reverse the ribbon feed by means "having an operating part which `is always moved in the same direction, regardless of which 'way the ribbon'hi ppens to be feeding. fsf The ribbon feed reversing mechanism shown in the drawings is constructed as follows, see F 2, H, T and 8: M represents' a slidable operating lever or push kev4 referably located 4near the right side of t 1e key f3@ board and having an upturned front end or a button mland M represents a late which is osclllated by said push key, e plate M is pivoted centrally at m on one of the arms ktpfthe transverse bracket c and has a stud rear of its pivot projecting up into a groove in the hub of the bevel gear at the exhausted spool and enables the ribbon feed i right end of the reversing shaft Z1". The plate is provided with an angle shaped slot mi in which engages a depending lug or part m* at the rear end of the push key, and has a. forwardly projecting portion provided Witha head m of V-erossseetion that is ada ted to snap downwardly over each side of t e supporting arm le to releasably hold the plate in either of the inclined positions shown in F i s. 2 and 7. The push key is mounted to s ide and swing laterally 011 the 'lipporting armk?, as by a screw or pivot lm." asing through an elongated slot m in the push ke and is normally held in the central forwar position and returned to such position after movement by a suitable spring m located in a slot in the supporti-ng arm and connected to the pivot and the push key, When the ribbon is being wound on the lefthand spool the reversing plate M will bein the Osition shownin Fig. 2, with the depending ug at the rear end of the pu;h key engaging in the left-hand inclined portion of the slot` in the reversing plate M. To reverse the feed the push key in forced rearwardly until its depending rear end, which is led to the left by theslot in the reversingr plate,l
strikes the end of said slot and oseillfat said plate on its pivot to the position shown in Fig. f7, in which position the plate is held by the engagement of its V-shaped head with the left side of the supporting arm Ict.4 The movement of the plate moves the reversing shaft Z1" to the right, throwing it ont of gear with the left-hand spool shaft and into gear with the rightshand spool shaft. The return of the push key to the normal forward ,position by its s )ring m, will throw its depending rear en into the inclined right end of the s lot in the reversing plate, so thatfthe nextttime the push key 1s oreed rearwardly it wi l oscillate the plate in the oppositeidirectioh and move the reversing shaft again shaft. This reversing mechanism is located where it can be reached without removing the hand from the key board and it is especially desirable for the reason that the movement of the sameart in one and nthe same direction always e ects the reversal of the ribbon feed regardlessof which way the ribbon is feeding. It is positive in its action and relieves the operator from the necessity of looking to see which ribbon spool requires to be thrown out of action, thus saving time. 'Ihe ribbon feed and'rcversing mechanism are not necessarily limited in application to a front strike machine of the kind illustrated. ,Y The ribbon is led', as usual, from one spool to the other through a guide or support located centrally in front of the fplaten, byV
` vers, while the front Ing point. The guide N, Figs. 1 to 6, is preferabl formed of a single piece of sheet meta ihaving its lower end folded around and riveted to a vibrator rod n which is arranged substantially upright between the central type bars and is pivoted at lts ends to upper and lower vibrating supports n nl The upper support preferably consists of two horizontal diverging arms pivoted at their rear ends to the top of the frame, While the lower support consists of a rigid ar'm pro jecting forwardly from a rock shaft a3 having end bearings in the ro'cker arms f of the ptaten shifting mechanism. The rock shaft u has two rigid arms a* near its ends which project rearwardly beneath the rock shaft l and are pivoted tothe uptnrned ends of a pendent ball n", the cross-bar of which passes beneath the key levers and forms a universal bar. The rock shaftn"l and its forwardly and rearwardly projecting arms constit|1teinetfect a vibrator lever, a nd the rocker a rmsl f adm-d a movable fulcrum support` for this lever. As the key levers a re of four different lengths. they are provided over the universal bar with depending lugs u." of four diiferent lengths. tbe lugs of the longest le vers resting on tbe universal bar and the other lugsl being diil'erently spaced from the universal bar according to the lengths of their respective levers so that each lever will depress the universal bar the san'iedistance. The ribbon vibrator is normally held down, with tbe ribbon below the printing point, as shown in Fig. 1, by a suitable spring nf connecting the front arm of the vibrator lever with a suitable part of the machine. such as a brackety n projecting from the crossbar n2 of the frame. The upper end of the spring is adapted to be secured to the vibrator lever nearer to or farther from its fulcrum to regulate the action of the spring. lhen a key lever is depressed the universal bar-will be lowered. thereby rockingr the vibrator lever andlifting the ribbon vibrator to locate the upper portion of the ribbon over the printing point in time for the type to strike the ribbon. lVitb the return of the key levers the spriingl n? restores the universal ar and vibrator to normal position. then the platen is shifted by means of either of the shift keys G acting through one of the rocker arms j, the rock shaft fr; or fulerum of the vibrator lever, is raised, as shown in ig. enough to lift the vibrator and rib` bon an equal distance with the platen. This lifting of the vibrator is due to the universal bar and rear end of the vibrator; lever being held from upward movement by `the key leend of the vibrator lever swings upwardly with its supporting rocker arms f. The ribbon is thus gh en a new normal position just under (the prit ting point on the shifted platen, and this position 1t assumes automatically eajch time the platen the platen The ribbon 'ust i is shifted and retains so long as is held in the shifted position. vibrates to and from this new position J as from its lower normal position'. l`he shifting of the laten does not alter its relation to the rib on.
The type bars, as before stated, have un accelerating motion in approaching the printing ont, but it is desirable for the ribbon villiator to have a uniform motion, and this is accomplished by the universal bar and connections described. Preferably i this universal bar is employed only for operating the vibrator and is not connected i to the carriage esca pement, the latter being operated b van independent universal bar shown in Fig. l. Where the separate universal bar for the vibrator is employed its retraeting spring can be made so light that when the machine is operated at considerable speed it will not return t e universal bar as rapidly as the key levers are returned, thus leaving the vibrator elevated between the impressions during the time a Word is being printed and ,permittin the vibrator to expose the writing when t yeiinger keys are at resty or when the speedof themachine is lessened. This action of the vibrator can be secured by adjusting the upper end of the retracting spring n near to the r fulcrnm of the vibrator lever, thereby giving-the effect of a lighter spring. By the described construction of the ribbon vibrating mechanism entirely independent of the I shift frame andvearriage, these parts may be removed and replaced without disturbing any party of the ribbon mechanism. The independent universal bar for actuating the escapement is indicated at nl", Fig. 1.
ar is segmental in shape and may be movably sup )orted by swinging links n over the typear segment in by the typc-bars C when they approach the platen. The rear supporting links are secured to a rock shaft connected by a rock arm uw to a rod um' which is connect-ed to the dog of the carriage escapement nl". The ribbon spools are also lifted when the platen and the vibrator are shifted, as above exposition to be struck i i i deflecting ofthe ribbon with the consequent curling of its edges. This isuccom lished l bythe rocker arms f3, the upturned) front i ends of which, when raised by the depression of either shift keyG, strike thei'ower ends of the' spool shafts and lift them vertically, as shown in Fig. 5. their shafts return to normalposition by gravity when the platen is permitted to return to its normal lower position.
Means are provided for holding the vibrator stationary. either in an elevated pov sition with the ribbon in printil) relation, or ina depressedv position with below the printing point. The means shown plained, thereby avoiding the twisting ori ribbon The spools and Aresent the front an inthe drawings for doing this are oonstructof one of the space keys H. The ribbon ed as follows, see Fiigs. 1 4 and 6i' OO reprear arms of a jointed key or lever, the two arms being pivoted together and to the transverse bracket le* at A spring p coiled about'the pivot p and earing a met the two arms of the key or lever permits the loyer to be flexed me way while overlapping parte of the arms 'cause the two arms to act use rigid one-piece lever the other way. he lever is normallyI held in the posit'romshow'n in Fig. 1 by a spring 11S-connecting` `afdepending leg p on the front arm of the lever'with the cross-berk of the frame. The lever is" rovided at its front end with 'a key p* pre erably-pivoted thereto and having a depending' curved shank p that passes downwardly through a slotted plate p0 sec'ured on the erossbar k of vthe frame. The key shank is provided near its upper end with a shoulder p1 adapted to be enga lred under a coperating'rhook or part ps of t e slotted plate p by pressing rearwardly. on the key when depressed for looking the key in its lower position, and the notched lower end of the key shank 1s adapted torbe'en aged over another hook or part 71" on the s otted plate p by liftin the key and pressing it forwardly to look tie key in a raised position. The rear portion of thel ribbon shift lever O O passes between the central auxiliary ty e-bar levers and ends in a cross head 111 oeeted inl front of the vibrator rod beneatha forwardly pnojecting lng pl thereon. The spring p is of greater strength than the retracting spring yn? for the vlbrator, so that when the front end of ribbon shift lever4 is depressed to the limit of its movement the rear end of the lever acting on the lng of the Vibrator raises the latter sons to locate the lower part of the Ivil'n'ated` while in ribbon `in printing position. 15),'.loeking the ribbon shift lever in its depressed position, as explained ,and as shown in Fig. 6, the lower part of the ribbon is retained over the printing' point,` and as the raising of the vibrator n lowers the nni\'ersal bar ont of reach of the key levers, the ribbon is not Y the -elevated iosition. Thisl adjustment of the parts enables the use of the machine with a non-vibrating ribbon, which is preferred, by some operators, and it also makes it possible to write with two colors by using a ribbon having different colored ink on its upper and lower` portions, as indicated at I, Itig. 12. v
By the simple depression 'of the ribbon shift leverthe ribbon can be changed for au single impression of different color, and by locking `the lever 'down the lower color can 1 `which projette rearwardly from the shaft n of the vibratorlever and strikes the rear end .rif
movement yof the part of the ribbon 1s maintained in printing shift lever, is flexed somewhat in, thus raisring the vibrator and consequently it the platen is shiftedY ,and the vibrator lever raised as before explained, when the ribbon is in this raised position, the spring 79 connecting the two arms of the ribbon shift lever will assert itself and raise the ribbon a distance corresponding with the upward laten. Thus the lower relation with the 'platen Whether the latter is shifted from its normal position or not. The ribbon can be lowered from its raised position just described to expose the printlng point whenever desired, by de ressing the space key H, which de resses t e front end of the vibrator lever wardly on the ariii Q thereof. The spring p' of the ribbon shift must be compressed to,
do this,
R represents a rod which is pivoted at its rear end to the universal bar and extends forwardly between the auxiliary type-bar levers, and is slidably supported at its front end as by a pin r on the plate p passing through a\ slot in the rod. A spring r' connecting the rod and the bracket n normally y pressing upi forces the rod R rearwardly and holds the universal barbeneath the operating lu on the finger keys, as shown in Fig. 1. hen it is desired to hold the ribbondown below the printin point, as when the machine is tobe used or stencil work, the ribbon shift 'lever O (Y is raised above its normal position and locked as before explainedgee Fig. LJ. When thus raised' the depending leg 'p2 of the lever strikes a shoulder 1' on the frontend oi' the rod It and pushes the rod forwardly, thereby n'itlnlran'ing the nniversal bar from beneath the operating1 ln s on the key-levers, and permitting the virator to fall and carry the ribbon below the rinting point far enough to be cleared by tie type. In the forwardposilion of the nniversal'bar it is not actuated by the key-levers and the ribbon remains stationary below thprinting point. 'lhc vibrator is p revcnte falling too far by vthe engagement "of the rear arms of the vibrator lever against the platen-shifting rock shaft F. Then theribbon is held down ont of use, as just explained, it is desirable to throw the ribbon feed mechanism ont of action lo save the nribbon and feed mechanism froln wear when for this purpose, see Figs. 3 and 1l: S represents a lever pivoted centrally to thelower from i side of the transverse bracket k, with its inner end in front of a depending lu s on the rear arm O' of then'ibbon s hf The outer end of the lever S is'curved upf wardly in rear ofthe bracket la* and termi" nates in front of the sliding bevel gear Z7 on the ribbon feed shaft Z.A Then the ribbon shifting lever is raised to lower the ribbon for stencil Work,A the lug a thereofpushes the inner endI of the lever S forwardly, causing theoiiter en' of the lever to slide the bevel gear ZT out of mesh with its companion gear and throw the ribbon feed out of action. When it is desired to a ain use the ribbon, the key of the lever O' is disengaged from its holding hook on the plate p. The s ring r will then draw the rod R rearwar y, returning the universal bar to its normal position and causin its shoulder r2 to strike the leg 712 of the ri bon shifting lever O O' and returiisaid lever to its normal position. The s ring r' is enabled to do this notwithstan ing the opposition of the spi'in pon account of being stronger than sai spring p3. The lug s isy thus withdrawn from the lever S and the bevel gear ZT is again thrown into mesh with its companion gear by its spring, thereby restoring the ribbon feed.
The universal bar a5 couldebe utilized t/o operate the carriage escapement, but this is not so desirable, as in that case the rod R for throwing the universal bar out of action for stencil cutting would have to be omitted and the ribbon could not be locked in its raised position with the lower part over the ing less ower; the ribbon feed gear can slip to avoi injury to the ribbon; audible notice is given Vwhen the ribbon should be reversed; sina'ple means are provided for securing the ribbon spools 'to their shafts and turning them manuallyand for preventing the ribbon from folding as it passes to the spools; the ribbon feed can be reversed by t thereby saving time and avoiding confusion; the ribbon is vibrated with uniform motion; the ribbon is maintained in the same relation to the platen in the normal and shifted"positions thereof; theribbon' can be held stationary over the printing point, and lowered to expose the Writing and again returned by means of the space key; a composite ribbon can be used; and the ribbon can be lowered ont of the way and its feed thrown out of action for stencil work without disconnecting the ribbon or any part of themachine.
y I claim as in invention:
1. The combination in a typewriting inachine havina ribbon, and means for feeding the rib on in opposite directions, of feed reversing means aving anormally inactive manually-actuated operating partI which when operated in one and" the same way acts to reverse the feed of the ribbon -nianually at will an( e actuation of a single part in the same di yErection, no matter which way the ribbon is feeding, 45"
movement of the ribbon, substantially as set i forth.
3. The combination in a typewriting ma chine having a ribbon, and mean'sffor feeding the ribbon -in oposite directions, of feed rcversing-meanslaving a reciprocatory operating part actin upon successive movements in the same irection to reverse the ribbon feed regardless of the direction of movement of the ribbon, substantially asset forth. A l
4. The combination in a typewriting niachine having a pair of ribbon spools, a ribbon, a powerdriven carriage, and connections by which the carriage driving power feeds the ribbon from one spool to the other, of feed reversing means having an o erating part which is movable to actiliate t e reversing means at any time during the run of the ribbon from spool to spool and which acts wlienn'ioved in the same, direction to always reverse the ribbon feed regardless of the direction of movement of the ribbon, substantially as set' forth.
5. The combination in a typewriting machine having a pair of ribbon spools, a ribbon, and means for feeding the ribbon from one spool to the other, of feed reversing means having an oierating part movable l acting w en moved in the same direction 'to reverse the ribbon feed from either one of the spools to the other,
and means to restore said operative part to the same normal position, substantiglly as set forth. i h
6. The combination in a typeivriting machine having a pair of ribbon spools, a ribbon, and means for feeding the ribbon fr om one spool' to the other, of feed reversing means comprising pivoted to the ribbon feed nie' ns an provided with an angle slot, and a in igaelgeoperating part engaging in said angle slot and acting upon successive movements to swin s plate alternately 'in opposite directions, substantially as set forth. t
7. The combination in a typewriting machine having a pair of ribbon spools, a ribbon, and means for feeding the ribbon from one spool to the other,l of feed reversing means eomprisin a pivoted. plate connecte to the ribbon fee means and provided with' operatin said pivoted ieg said ang e slot, and a spring for returning netsw said key to a normal central position, said key actin upon successive movements to swin sai pivoted plate alternately inopposite irections, substantiallyas set forth.
8. The combination in a typewriting Inachine having a platzen, a series of type-bars arranged in a segment below the laten, and a ribbon arranged to feed lateral y in front of the platen, of a sbstantially upright ribbon vibrator passino' between the tyiebars, an upper su port l or 'said vibrator tlliat extends rearwar. ly under the platen and is pivotally connected at its rear to the frame,
and a vibratory su port for the loweiend of saidv vibrator, su tantially as set forth.
9. The combination in a typwriting machine havin 'a platen, a series of typebars arran a series-o vkey levers, and a universal bar, of a ribbon arranged to feed laterally in front ofl the platen, a substantially u right vibrator for'the ribbon, and ivote sup portin arms for the upper an lower ends of sai vibrator, one of said arms being connected to the universal bar, substantially as set forth. y i
v10. The combination in a front strike typewriting machine having a platen, a ribbon arranged to -feed laterally. in-front of the platen, a uidejor the ribbon below and 1n front o' `the printing poiiit, and a series of key levers, of a rock-shaft adjacent to the key levers and actuated thereby, an arm on the roclrsshaft, and a vibrator rod extending upwardly from said arm directly to the` ribbon pnide, substantially as set forth.
T le combination in a front strike typewriting machine having a platen, a ribbon arranged to feed laterally in front of the platen, a guide for the .ribbon adjacent to the printing point, and a series of key levers, of a rock arm arranged above the key leve s and actuated thereby, and an Yupright vibrator rod supported by said rock arm and supporting said ribbon guide at its noper end. substantially as set forth.
12. The combination in a front strike typtwriting machine having a platen, a ribbon arranged'to feed laterally in front of the platen, and .a guide for the. ribbon below and in frontof the. pl'intin point, of a vibrator for the ribbon gui e consisting "of 'a rigid rod, a support pivoted to the upper part of said vibrator and to the frame of the machine iii the rear' vof and below the printing point, and a vibrating part of thev i machine piyoted to the lower part of said vibrator, the two pivoted parts acting to liold said vibrator in a substantially upright position. .substantially asset forth.
13. The combination in a typewriting inachine having a platen, a series of type-bars arranged in a segmenty to swing upwardly and rearwardl and a laterally movable ribbon, of a rgi or one-part ribbon guide and in a segment below the platen, l
lauxiliary och-shaft for nctuatin vibrtorpaeing downwardly between the type-bars, substantially as eet forth.
14. The combination in a fribstrike type- `writing machinehaving a shift platen, a rib- 'writing machi VVAe, of a shift platen, a rib ion,
ty e-bars arranged below the )laterne ribbon ing a rock-shaft located oli a plane below the .80 vi r'atoi, platen shifting niecianisni includl type-bars, a vibrator lever adjacent to and ivotally supported py said rock-slia ft and iaving an arm whic i supports Said ribbon vibrator whereby the ribbon vibrator is shifted with the platen, substantially as set 16. The combination in a typcwritingir macliiiie,of a shift platen, key levers, platen shifting mechanism including a rock-shaft located over and adjacent to said key levers, a vibrator lever having a movable fulcrum support on said rmrk-shat't. a universal bar connected to said lever and iii-ranged to be engaged by said key levers, and a ribbon vibrator connected to and actuated by said vibrator lever; substaiit iall \v as set forth.
17. The combination in a tvpcwriting machine, of a shift platen. key lovers. platen shifting mechanism including a rock-shaft located over and adjacent to said key levers and havingr rock arms at itsl ends, a vibrator rook-shaft journalcd in said rock arms, a universal bar connected to said vibrator roclcshaft arranged t. be engaged b v said key levers, an arm on said vibrator rockshaft, and a ribbon vibrator connected to said lastV mentioned arm. substantially as sot forth.
1S. The ombination in a typewritiiig niachine hav' ig a shift platen, a ribbon, and a rockss'lia t and originating mcaiisfor shifting the ph ten, of a ribbon vibrator,` and an said vibrator supported by the platen siift rookshaft, whereby the ribbon vibrator is shifted with the platen, substantial] y as set forth.y
19. The combination in a typewriting ma chine having a shift platen, of n series key-le`vers, a rock-shaft actuated by the ke levers, a ribbon vibrator actuated by said rock-shaft, and a platen shift mechanism acting to change. the position of said rock-shaft with the saine movement that shifts the platen, substantially as set forth.
:20. The coinl'iiiiation in -a front strike typewritine machine havingr a ribbon arranged to feed in front. of the platen, of a ribbon vibrator and actuating means therefor opof 12o 'ei'ated when the type-bars are c' erated for vibrating the ribbon relative to t e printing point; a spring-pressed devicelforvshifting the ribbon vibrator to' hold'the ribbon 'in front of the printing point, and a key acting to'com ress the spring and depress the rib bon be ow the printing point, substantially as set forth. i
21. The combination in a typewriting machine. of a ribbon, a ribbon supiort and actuating means therefor normallly acting to vibrate the ribbon crosswise to move one portion thereof to 4and from the printing point with each Arinting operation, and .a ribbon shift key vever Apivoted adjacent to the type-operating keys to swin vertically, and cooperating. parts between t e rear end of said key lever and the ribbon su port operating when the frontend of sai key lever is depressed to move the ribbon sup-t port to shift the ribbon crossvviseA to hold another portion of the ribbon stationary op posite the printing point, substantially as set forth.
22. The combination in a typewriting machine, of a ribbon, a ribbon su port, means for shiftin said support to ace the ribbon in di erent rinting relations to the platen, and two independent devices, one for vibrating said support with the-ribbon in cach of said diii'erent relations, substantially as set forth. '4
23. The combination in a typewriting machine, of a ribbon, a ribbon support, means for vibrating said support at the type strokes, and two additional devices for vbrating said ribbon support to differentlyV operate the ribbon, substantially as set forth. 124. The combination in a typewritin machine having a ribbon arranged to fee pastthe printing point on the platen, type-oper ating keys, and a space key, of a ribbon suport, mechanism fo vibrating said support Ey the movement oi either the type-operating keys or the space key, and an auxiliary key also for vibrating said support, substaiitially 'as set forth. 4 25: i The combination in a` front strike type; writing machine having a shift platen an( ribbon "arranged to feed in front of the platen, ofmeans for vibratingthe ribbon, andspring pressed means for supporting the ribbon over the printing point and acting to cause the ribbon to move up and ribbon so that thc upper part down with the laten, when the-platen is shifted, substantially as set forth.
26. The combination in a front strike ty Jewriting machine havingashift laten, an a ribbon arranged to feed in ront. olf the platen, of a ribbon supportand ibrating means cbnstructed to normally vi rate the pf theribbon is mot'ed to and from the p inting point when the platen'is in. either" osition, and means constructed to shift tlie ri bon support so as to retain the lower part' of the ribbon giver the printing point when the platen is in either position, substantially as set forth.
' 27. The combination in :i typeivriting ma chine having a platen, und a ribbon arranged to feed ast the printing point of the platen of a rib on support, means for moving said support to place the ribbon either above or beow a normal intermediate position and returning the ribbon to .said intermediate position, and means for retaining said sup. port with the ribbon either in such high or ow position, substantially as set forth.
28. he combination in a typewriting ina-V chine having a platen, a ribbon arran ed to feed ast the printin point of the p aten, a rib on support, an means for vibrating said ribbon support, of a device for movingl said support to lace the ribbon at one side or the other o its normal iosition, and means coperating with said evice to hold Said support stationar in either position to which itis moved by said device, substantip'lly as set forth.
29. ,The combination in a typewriting machine lhaving a laten, platen s lifting means, a series of keyA evers, a`u`n`iveral bar, and a ribbon arran ed to feed past the rinting point, of Ya ri bon support actuate by the universal bar to vibrate one portion of the ribbonto and from vthe printing point in either position of the platen, and means for disengaging the universal bar from thc key levers and holding another portion of the ribbon opposite the printing point in either position of the platen, substantially as set"v forth.
30. The combination in a ty ewriting machine having a laten, platen s ifting means, a. series of keyevers, a universal bar, and a ribbon arranged to feed in front of the platen, of a ribbon support actuated by the universal bur to vibrate the upper portion of the ribbon over the printing oint With the platen in either position, an means acting to disengagc the universal bar from the ke levers and hold the lower portion of t e ribbon over the printing point with the platen in either positiomsubstantially` as set -forth.
, 31.. The combination in a typewrting machine having a platen, and .a ri bon arranged to feed past the printing point of the platen, of a ribbon support and actuating means constructed to vibrate the ribbon to and from the printing oint, means for moving and holding the rib on support to retain the ribbon opposite to the printing point, and additional meansl for operating the ribbon support to withdraw the ribbon from and return it to said position opposite to the printin point, substantially as set forth.
32. he combination in a typewriting machine, of a shift platen, a ribbon, ribbon spools movably supported independently of ysiippor the platen su port, a ribbon guide supported adjacent to tde printing point independent-ly of.the platen support, and mechanism for shiftin the platen, ribbon spools and ribbon together, substantially as set forth;
33. The combination in a front strike typewriting machine having a shift platen, of a ribbon, a ribbon support arranlged in front of the platen, a pair of movab y supported ribbon spools, anda rock-shaft and conne@ tions constructed to shift the platen together with the ribbon support and the spools, sub` stantially as set forth. Y
34. The combination in a front strike typewriting machinehaving a shift platen, and a ribbon arranged in front of the platen, of a pair of ribbon spools having supporting shafts journaled in the frame o the machine, a rock-shaft and actuating means for shift ing the platen, and a pair of arms connected to said rock-shaft and acting to shift the spool shafts when the platen is shifted, Subj stantially as set fort n 35. The combination in afront strike typewritii'ig machine having a shift platen, and
Y a ribbon arranged in'front of the platen, of
4t ef'niachine` Vshift levers, a rock-shaft actuated bv either s (Sols movably supported by the frame of a pair of independent platen shift lever and connected shift the platen, and means rock-shaft for shifting the ribbon spools, substantially as set forth.
3U. AThe combination ina front strike typewriting machine having a shift platen, of a ribbon supported in front ofthe platen, a pail' of ribbon spools having shaftsjournaled in the `frame of the machine, a pair of'independent shift levers, a rock-,shaft acting to shift the platen, and a pair ofarins acting to vibrate the spool shafts and transmit power from the shift levers tothe rock-shaft, substantially set forth.
37. The combination in a typewriting machine having a series of vibrating key-levers, of a ribbon vibrator, a universal bar operated by said key-leve 's for actuating the vibrator, and means for disconnectin the unito the platen to connected to said A versa] bar from the key-levers to tirow sai-d Vthe vibrator from said vibrator out of actioii,siibstantially as set forth.
88. The combination in a typewriting machine having a series-of vibrating keys, of a ribbon vibrator-connections for moving the vibrator with the depression of any one of said keys, and a vertically movable key adjacent to said vibrating keys for releasing l v vibrating keys Whereby said vibrator is permitted to descend and remain stationary below the printing point, substantially as set forth. 4
'e combination in a typewriting machine-having a series of vibrating ke levers,
of a universal barnormall actuate by the ey-levei-s, a vibrating rib on support con ing key-levers,
lnected tothe universal bar, a lreyt adjacent to the key board, and means actin when the key is moved in one direction to isconnect the universal bar from the key-levers and locate the ribbon over the rinting point, and when moved in another direction to disconnect the universal bar from the key-levers and locate the ribbon below the printing point,.siibstantially as set forth. l
40. The combination in a front strike typewriting machine having a platen, and a series of key-levers, of a vibrating Vribbon support actuated by thel key-levers, a lkey adjacent to.v the key board, and connections between said key and the ribbon support acting normally to permit the key-levers to vibrate the ribbon support and constructed to shift the .ribbon support to hold the ribbon stationary either over the rinting oint or below the same, substantially as set orth.
41. The combination in a` typewritin machine havi a ribbon, and a powerriven ribbon mec anism, of a vibratin ribbon support, a key and 4means actuatec? thereby arranged to disconnect both the ribbon driving mechanism and the ribbon vibrator when the ribbon is not required for use, substantially as set forth. 42. The combination in a typewritingmachine having a ribbon, a power-driven ribbon feed mechanismand a series of vibratof a universal bar actuated by the key-levers and connected to said ribbon for vibrating it, of a key acting to clisconnect' the rib on mechanism and to disconnect the universal bar from the key-levers, substantially ask setrforth,
43. The combination in a typewriting machine having a powendriven ribbon feed j mechanism, of a ribb'on sup ort acting normally to support the ribbonb ling point, of a ke and means actuated thereby constructed to disconnect the ribbon feed and change the normal position of the ribbon support, substantially as set forth.
44. The combination in a typewriting machine, of a power-driven feed mechanism including a yielding part which is, normally held in driving position and will yield to automatically disconnect the ribbon feed mechanism fnoin the driving element when the feed mechanisinis subjected to abnormal strain, and means for moving said yielding part and securing it in an i tive position when the ribbon is not require far use, sub.- stantially as set forth.
45. The combination in a y riting machine, of a ribbon s ool, a seaxior the same having a slotted Wa l surrounding the spool, a slotted guide bail vfor the ribbon pivotally connected to the center of the from rotation in saidslot in substantially as set forth; i,
46. The combination in a typewriti "`machine, of a rotating ribbon spool, a sottqd elow the printvibrator and universal bar,
tro led b Abar for etermining which field of the ribseat for"the same, a slotted bail havin its ends pivotally connected to the center o the spool and its center resting in the slot in the spool seat, whereb the ball is held from rotation, substantial as set forth.
47. In a typewriting machine, the combination of a ribbon divided into fields of different characteristics, a universal bar controlling said ribbon and capable of being dis nosed in difi'erent ways, and means controlled by the disposition of the universal bar for determining which field of the ribbon shall be presented in operative position.
448. In a typewriting machine, the combination of a ribbon divided into fields of diff ferent characteristics, a universal bar controlling said ribbon and capable of being dis osed in different Ways, and means conthe disposition of the universal bon shall be presented in operative position or for throwing and maintaining the ribbon out of the operative position as may be desired.
49. In a typewritingr machine, the combination of a iiibbon, a universal bar, means for moving the ribbon to o erative position and means controlled by L e disposition of the universal bar for renderin the. mechanism inoperative to move the ribbon to the operative position. i
50. In a typewriting machine, thecombination of a ribbon, a universal bar, and means controlled by the disposition of the universal bar for maintaining the ribbon out of operative position during the printing operatlons.
51. In a ty ewriting machine, the combination of a riiibon, a rlbbon vibrator, a universal bar, means for connectin said ribbon ey-actuated means for operating the universal bar, and means for changing the position of the uni# ver-sal bar relatively to said key-actuated means to determine the o eration of said key-actuated means on sai vibrator.
Ina typewriting machine, the combination of a universal bar for the carriage esc pement mechanisima ribbon vibrator, a ribaon ca able of 'use along either of a. plurality of ongitadinal fields, a separate universal bar connected wi Vsaid vlbrator for actuating it, and 1n` s for changing the relation of said last mentioned universal barL characteristics, dpivoted arms, a universal bar.
pivoted to sai arms, and connections 'between said universal bar and `theribbon whereby a movement .of the universal bar on its ivoted arms will change the disposition oft e arts connected therewith.
54. nation of a ri )bon havingr fields of different characteristics, ivoted arms, a universal bar movable in earings in said'arms, `and connections between said universal bar and n a typewriting machine, the combi-y the ribbon, the construction and arrangef ment lof the parts being such that the movement of the universal bar in its bearings determines which field of the ribbon shall be resented in the operative position or rengers the mechanism inoperative to move the ribbon to the operative position as may be desired.
55. In a ty ewriting machine, the combination of a ri bon, pivoted arms, a universal bar pivoted to said arms, connections between said universal bar and the ribbon, and
means" for maintaining the universal lbar.
against accidental displacement from the position toiwhich it is turned on its pivots.
56. In a typewrlting machine, the combination of a ribbon, and ribbon 'vibrating .90
anism comprising a universal bar movable tor different, means an determines which fie d of t e ribbon 'shall b presented to operative position. y
58. In a ty Writing machine, ,the'combi4 nation of'a ri bon havingfields of Adiilierent characteristics, and ribbon vibratingi mechanism comprising a universal bar movable to different ositionsrelative to its actuatin means and) the 'chan e of osition of whic determines which fie d oft e ribbon shall be presented to operative position or renders t e mechanism inoperative .to vibrate the ribbon to operativeposition.4 59. In a typewriting' machine, the combination of a carria e, esca ement therefor, a ribbon havin fie s of ierent characterl istics, and rib p rsing a universal,bar-'inependent of the osit' ns `relative to its 4actuating 'escapment mechanism axidf'nmogable, di A means and therhafng'erofpbsition of .whic
determines which fildof the shall and adjustableto different positions, relaico the hangeof osition of which n vibrating mechanismcomp bon' having fields f dierent4 spend. `ent of the carriage escapement mechanism 1-30,
Vtive for throwing said second universal bar into 20.
tive to its actuatin means and the change of position of whic determines which fie d of the ribbon shall be presented to operative position or renders the mechanism ,inopera-v .tive to vibrate the ribbon to operative posiand out of operation at will.
(i3. In a ty iewriting machine, the combination of a ri bon having fields of ditierent characteristics, and a universal bar oieratively cnn'ected to said ribbon and a justable to any one of three positions, the position to which the universal bar is adjusted determining whichV eld of the ribbon shall be moved to operative position or whether or not the ,uiiiversal bar shall be rendered ,inoperative (54. In a typewritin machine, thecoinbination of a ribbon, ri bon vibrating mechanism -com )rising a universal bar, means controlled y the disposition of the universa] bai' for ,rendering the ribbon vibrating mechanism inoperative to move the ribbon to the operative position, means for feeding the ribbon, :ind meansfor automatically rendering the ribbon feeding means inoperative when the mechanism is inoperative to move the ribbon to the operative position.
65. In a typewritin machine, `the combi-l nation of a ribbon, ri bon vibrating mechanism comprisin a universal bar movable to different positions relative to its actuating means and which in one of said positions is ont ofrcoperation with its actuating means, ribbon feed mechanism, and
means controlled by the adjustment of tlie'-` universal bar for throwing the ribbon feedi mechanism out of operation.
G6. lIn a typewriting machine, the combination of a ribbon, a key-actuated universal bar, permanently maintained connectionsbe tween said universal bar and ribbon, whereby said universal bar may 'move said ribbon to operative position, means for shifting said connections at the universal bar for rendering t the universal bar inoperative to move the ribbon to `operative position, ribbon feed mechanism, and means for automatically rendering the ribbon f eed mechanism inoperative when the universal bar is inoperative to move the ribbon to operative position.
bination of a ribbon, a universal vbar operatively connected to said ribbon, key-actuated means for operating said universal bar, means for adjusting said universal bar relatively to its said operating means and for thereby rendering the key-actuated means inoperative to move the universal bar, means for automatically effecting a longitudinal feed' of the ribbon at each printing operation, and means controlled by the adjustment 'of said universal bar for automatically throwing the ribbon feeding means out of operation when the key-actuated. means are rendered inoperative to move the universal bar and for automatically throwing the vribbon feeding means into operation when the keyactuated means are operative to move the universal bar. t
G8. In a typewriting machine, the combination of a ribbon, a universal bar and connections for vibrating said ribbon,`keyactuated4 means for 4actuating said universal bar and with relation to which saidl universal bar has a relative adjustment, one position of the bar relatively t0 itsl said actuating means affording a vibrating movement of the ribbon and another position of the bai' relaactuating means inoperative to actu-ate the vibrator, ribbon feed mechanism, and means controlled by the adjustment of the universal bar for throwing'the ribbon feed mechanism into and Aout of operation.
69. In a typewriting machine; the combination of a ribbon, a universal bar operatively connected to said ribbon, means for throwing said universal bar into and-out of `operation at will, ribbon feed mechanism, and means for thi-caving the ribbon feed mechanism out of operation when said universal bar is out of operation and for throwing the ribbon feed mechanism into operation when the universal bai' is throwninto operation.
70. In a typewuiting machine, the coni-V bination of a'ribbon divided into fields of different characteristics, means for determinin'g which field of the ribbon shall be presented to the printing point, controlling hmeans forI preventingy the ribbon from mov- Ling to the pi'inti'ngpoint during the operation of the machine, ribbon feed mechanism, and means actuated by'said controlling means for'rendering'the ribbon` feed mechanism inoperative.
7l. In a typewriting machine, the conbination of a ribbon divided into fields of different characteristics, a, universal bar'capable of being differently disposed, means controlled by the disposition of the universal bar for determining-which field of the ribbon shall be presented in operative position or for maintaining the ribbo'n out ofthe operative position as may be desired, ribbon feed 67. ln a typewriting machine, ,the coinmechanism, and means for rendering the bination of is out of ribbon feedjnechansm inoperative when ribbon is maintained ont of the operative position.v f
72."ln aj ype\vritin'. machine, the coni-I a univeilalg' b escapemcnt mechanism, ai ribbon vibrator, a ribbon having fields of diil'erent chara cteristics, a separateiiniversal bur connected with said vibrator for actuatin cliaiigiii the relation of said last mentioned universe bal' to its actuatin means and thereby determinin which fie d of 'the ribbon shall be restenv ed inoperative position `or.for rndei'in the mechanism inoperative to move the rib on to the operative iosition as may be desired, ribbon feed meeianisni. and means for rm'ide'rin the ribbon feed mechanism in01')e,la,live We` en the mechanism is inoperative .to
, hiyiifthe ribbon to operative ositioi'i.-l` Y Y, v
73.1;11 arjffiewriting machine` the conibinationfof a ribbonighavinglields of diftereiit characteristics, pivoted arms, a universal bar movable in bearings 4in said arms, connectioridlitween said universal bar and the ribbon, the construction and arrangement of thelperts bein such'that the movement of the universal a'i'n its bearings determines which field of tl'ie'ibbon shall be presented ini the opcrtiveyposition or renders the -mechaiiism inoperative to -move the ribbon to the operative position as may be desired, ribbon feed mechanism, and means eontrolled by an adjustment of said universal bar for rendering the ribbon feed mechanism operative or inoperative. f a typewritin machine, the combiiiation of a ribbon, ri bon vibrating mechanisni comprisinga universal bar movable to different ositions relative to actuating means an which ni one of said positions is out of cooperation with its actuating means,
ribbon feed mechanism, a'nd automatica! l y actuated means for rendering the ribbon feed 'Jnechanisin r:inoperative .when sa id uni versal coperation Vith. its actuating means. 4
-75. In a typevvriting machine, the coin; on having fields of diifeil bination of a.` ribb ent-fcliaracberisties, ribbon vibrating,r mechanism comprising a universal bar movable to different positions relative toits actuatiuo means `and the chan e of position of whici determines whicliie d of t ie ribbon shall be presented o operative@ position or renders the mechanism.inoperative to vibrate the rib- `bon to operative position, ribbon feed meeh- 'enism, and means for rendering said ribbon feed mechanism inoperative when said rib- 60 bon vibrating ane'chanisni is inoperative to move the ribbon to operative position.
76. In a' typewritingr machine. the coin- `-binationlof a ribbon ha Vinar fields of dill'erent characteristics, ribbon vibratingr mec-hair ism comprising a universal. bar independent the ar for the carriage it, means, for
,binatiou of of the carriage escapcment n'ieehanism and adjustable to different positions relative to its actuating meansA and the chantre of )osition of which determines which held o the ribbon shall be presented to operative 'position or renders the mechanism'inoperative to vibrate the ribbon to operative position, ribbon feed mechanism, and means controlled b v an adjustment of the universal bar of said ribbon vibrating mechanism for throwing said ribbon feed mechanism into and out of operation.
7. ln a typewriting machine, the combination of a ribbon having a plurality f fields of different characteristics, a key-actul ated universal bar, permanently maintained connections between said universal bar and ribbon, ine'ans for shiftin said connections at. the universal bar for eter-mining 'which field of the ribbon shall be. presented to operative iosition or for rendering the universal bar ioperative to move the ribbon to operative position as may be desired, ribbon feed mechanism, and means` controlled by the adjustment of said connections for throwingr the ribbon feed mechanism iiito and out of operation.
78. lira -typewritiiig' machine, the coinbination of a ribbon vibrator, a universal bar, positive and constantly maintained connections between themiiversal bar and vibrator. means for 'effecting' a relative adjustment of the parts to position the ribbon vibrator in anyone of threenormal positions, ribbon feed mechanism, und means for throwing said feed mechanism out of operation when the `vibrator is positioned in one of the three normal positions. 4
79. In a typewritijng machine. the coma ribbon'having ditl'ereiit fields, a. universal bar operatively connected to said ribbon and adjustable to any one tot three positions.` the position to which the universal bar is adjusted determining whiehlield of the ribbon shall be moved to operative position or Whether or not the universal 'bar shall be rendered inoperative, ribbon feed niechaiiism, and means for throwingr the feed mechanism out of operation when said universal bar is rendered inoperative.
St). lu a typewriting' machine, the coinbination of` a. ribbon vibrator, means for changing the normal position of the vibrator, ribbon feed'niechaiiisnn and means for` rendering the ribbon feed mechanism inoperative when the vibrator is moved to one of i ts normal positions. 8l. lu a typewriting machine, the combination of an 'escapeinen a ribbon vibrator, a universalbarior the escapement, a second universalbar. intermediate connections 'betweensaid seconduniversal bar and vibrator. key-actuated devices operative on said universal bars, an *means for enabling the key actuateddevicesto operato the universal bar for the egcapement without actuatiigthe vibrator, the second universal b ar os said in: termediateconnections.
82. 1n a typewriting' machine, the coinbination of a ribbon vibrator, a universal bai-intermediate connections between said universal bar and vibrator, key actuated devices operative on said universal bar, and means for enablin the key-actuated devices to be actuated Wit out actuating the4 vibra-` tor, the universal bar or said intermediate connections, ribbon feed mechanism, and ineans'for rendering the ribbon `feed mechanism inoperative when saidvibrator, interinediate connections and universal bai' are ren dered inoperative.
In a typewriting machine, the combination of a ribbon having' fields of different characteristics, a ribbon vibrator, finger keys, a universal bar which actuates said vibrator and which is actuated b said finger keys, and means for enabling said finger'keys to be actuated without actuatiriv said universal bar and for ydeterminingtthe point to which the vibrator shall be moved to bringI any desired field of the ribbon to 'operative' position.
84.In a typewriting machine7 the oombination of means for actuating a carriage escapement, a ribbon vibrator, printing keys, means intermediate said printing leysand ,vibrator for actuatin the vibrator, said intermediate means inc uding auniversal bar, and means forenabling the printing keys to operate the carriage escapenieiit actuating means without imparting movement. to said universel bar. u j
85. In a typewriting machine, the coinbination of a ribbon havingfields of different characteristics, a ribbon vibrator, finger ke s, means intermediate said finger keys and vi irator for actuating the vibrator, 'and means for enahlingxthe finger keys to be actuated without imparting movement to any of the intermediate means and for causing the vibrator to be moved to different points to bring any desired field of the ribbon to the operative position. 4
8G. In: a typewriting machine, the coinbination of a ribbon'vibrator, linger keys, means intermediate said finger keys and vibrator for actuating the vibrator, means for enabling the finger keys to be actuated ivith out imparting movement to any of the in teriiiediiate means, ribbon feed mechanism, and means for locking the ribbon feed mechaiiisni out of operation when said intermediate means4 are rendered ino rativej.
87. In a typewriting mac ine, the combination of a ribbon having fields of different characteristics,a ribbon vibrator, finger keys, means intermediate said linger keys .and vibrator for actuating the vibrator,
means for enabling-ithenger keys to be actuated Without imparting movement to any of the intermediate means and for causing the vibrator to he moved to different oints to bring any desired field of the rib- Vn to the operative position, ribbon feed mechanism, and means for locking the ribbon feed mechanism out of operation when said intermediate means are rendered inoperetve.
88. In a typewriting machine, the'combination of a power-driven carriage, ribbon feed mechanism actuated by the power emloyedV to move said carriage, two universal ars, carriage feedmechanisni actuated by one of said universal bars and a ribbon vi brat/or actuated by the other, means for i'eiidering the vibrator actuating universal bai" inoperative to move the ribbon to the printing point, and means' for automatically throwing the ribbon feed mechanism into and out of operation when. said last nientioned means are actuated.
89. In a typwi'iting machine, the conibinatioii of a ribbon having fields of different characteristics, a power-driven carriage.
'ribbon feed mechanism actuated by the power employed to move said carriage, tivo universal bars, carriage feed mechanism actuated by one of said universal bars and a ribbon vibrator actuated by the other, means for regulating the mechanism to bring any desired field of the ribbon to the printing point and for rendering the vibrator actuating universal bar inoperative to bring the `ribbon to the printing point, and means con f trolled by said regulating means for throwing' the ribbon feed mechanism out of operationvl'hen the vibrator actuating universal bar is rendered inoperative to move the ribbon to the printing point.
90. Ina typewriting machine, thi` coinbination of two independently operable universal bars, a ribbon vibrator operated by one and an escapement mechanism operated by the other, and means for throwing said `universal bar which olperates the vibrator out of operation at wil 91. In a typewriting machine, the conibination of tivo independently operable umv versal bars, a ribbon vibrator operated by one and an esca ement mechanism operated by the other, an means operable at ivill for changing the universal bar.for the vibrator relatively to its actuating means.
92. In a typewriting machine, the conv bination of a ribbon having fields of different characteristics, two independently op# -erable universal bars, a ribbon vibrator actuated by one of said universal bars, and an escapement, mechanism operated by the other, and means `for changing the universal bar for the vibrator relatively to its actuating means'and for throwing it out of opera tion at will, whereby any t esired `field may Correctionv in Letters Patent No. 934,677
be presented at the printing point or the vibrator may be rendered inoperative as t may be desired.
either field thereof to and from the printing point wlth the shift frame in either its normal or shifted position, substantially as set forth.-
el 1Witness my hand, this 31st dey of Augnst EMMIT G. LATTA.
Witnesses:
CHESTER W. REID, FRANK E. REID.
lt is hereby certified that in Letters Patent No. 934,677, granted September 21, i909, upon the application of Eminit G. Latte, of Syracuse,l N. rY., for an improvement in Ribbon Mechanisms, an error appears in theprinted specification requiring l correction :is follows: Hage line 8, the words frameI normally holds. the platen in should be stricken ont and the Words buf/'edad 'Je shifted @vertically nto be inserted instead, and that the said Letters Patent should be read with this 'correction therein that the sume may conform to the record oi' the onse in the Petent Oflice.`
Signed and sealed this` 19th day oi' October, 1)., 1909.
[SEAL l e. o. BILLINGS, Acting Cbmmss'b'oner of Patents.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919008A (en) * 1957-12-27 1959-12-29 Ibm Ribbon lift mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919008A (en) * 1957-12-27 1959-12-29 Ibm Ribbon lift mechanism

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