US674312A

US674312A - Type-writing machine.

Info

Publication number: US674312A
Application number: US30101A
Authority: US
Inventors: Jacob Felbel
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-06-19
Filing date: 1900-09-15
Publication date: 1901-05-14
Anticipated expiration: 1918-05-14

Description

No. 674,312. Patented May l4, IBM.

J. FELBEL.

TYPE WRITING MACHINE.

' (Application filed Sept. 15, 1900.)

("No Model.) 3 Sheets-Sheet I.

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No. 674,3l2. Patented ma |4, |9o|. J. FELBEL.

TYPE WRITING MACHINE.

(Application filed Sept. 15, 1900,)

(No Model.) 3 Sheets-Shoat 2.

Ii- I3 \AA'TNHESEEEJ INVENTEIR= THE NORRIS PETERS c0, Pumauma. WASHINGTON. n. cy

Patented May I4, l90l.

No. 674,3l2. I

J. FELBEL.

TYPE WRITING MACHINE.

(Application filed Sept. 15, 1900.) (No Model.) 3 Sheets-Sheet 3.

|| II IL 7- INVENTEIR.

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TATES UNITE JACOB FELBEL, OF NEW YORK, N. Y.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 674,312, dated May 14, 1901.

Original application filed June 19, 1900, Serial No. 20,797. Divided and this application-filed September 15,1900. Serial No. 30,101. (No model.)

To all whom it may concern.-

Be it known that I, JACOB FELBEL, a citizen of the United States, and a resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-VVriting Machines, of which the following is a specification.

This application is a division of my appli-- cation filed June 19, 1900, Serial No. 20,797, and relates more especially to the ribbon mechanism.

My several objects are to provide an improved ribbon-vibrator, a manual adjustment whereby the wear of the ribbon widthwise in different lines maybe secured, and means for enabling the ribbon when either spool is empty to lock the printing mechanism, so as to notify the operator to reverse the direction of the ribbon-feed.

To these and other ends, which will more fully appear hereinafter, my invention conand showing a type-key depressed and the parts connected thereto in working position.

Fig. 3 is a front elevation of the machine,

partly in section, and omitting various parts present in the complete machine. Fig. etis a front view showing the ribbon mechanism, the ribbon in diiferent positions, and also showing parts of the keyboard lock mechantor and its operatingarm.

' vie w of the top plate, ribbon mechanism, type- .segment, &c., including the key-locking device. Fig. 7 is a horizontal section taken through the ribbon -vibrator and the type- 5).

guide carrier. Fig. 8 is an enlarged perspective view of the lll)bOll-Vll)l'tl10l'.. Fig. 9is an enlarged perspective view of an operatingarm for the ribbon=vibrator. Figs. 10, 11, and 12 are detail views of the device by which the throw of the ribbon-vibrator may be regulated, Fig. 10 being a bottom view, Fig. 11 being an elevation, partly in section, and Fig. 12 being a top plan view.

In the several views the same part will be found designated by the same character of reference.

The frame of the machine comprises a rectangular open base- 1, corner-posts 2, rising therefrom, and a top plate 3, supported upon the posts. Horizontal key-levers 4 are pivoted at their rear ends to a transverse rod 5, arranged in the rear portion of the base, and are caused to bear up against a pad 6, arranged over the forward or key ends of the levers, by means of springs in the usual or any suitable way. The pad 6 is secured upon the under side of a fixed transverse horizontal bar 6*.

A transverse universal bar or roller 19 is arranged beneath the key-levers and jou r- .naled at 20 upon side arms 21, which are pivoted at their forward ends upon a transverse horizontal bar 22, fixed or supported upon the side walls of the base. Said side arms at their rear ends are rigidly united by a bar 23, the latter and the side arms taken together forming a bail. The arms may also be united by a transverse tie-rod to stiffen the structure. At a point about midway between the side arms said bar 23 is formed with a lip or car 25, which extends rearwardly and is provided with a threaded hole with which engages a vertical screw 26, which may be firmly secured in any adjusted position by a nut 27.

.At its upper end the'screw is reduced at 28 to form a neck which pivotally engages the horizontal member of a small angle-piece 29, said screw being formed with a head 30 to maintain the angle-piece in permanent engagement. To the vertical member of the angle piece 29 pivoted at 31 the lower end of a vertical link 32. The upper end of the link 32 is pivoted upon a shouldered screw 34, projecting laterally from an arm 35, which extends forwardly from a shaft 36, the latter being pivoted at 37 to cars 38, extending rearwardly from a vertical plate or bracket 39,

which is secured to the under side of the top plate. An arm 40 rises from the shaft 36 and carries at its upper end a stepping-dog 41 and a detent-dog 42, of which the former is normally in engagement with an escapementwheel 43. A returning-spring 44 is coiled about the shaft 36. The escapement-wheel 43 is carried by the rear end'of a shaft 45, which at its forward end is provided with a pinion 46, arranged in mesh with a rack 47, the latter being suitably connected to a paper-carriage 48, which may slide upon rails 49 and which carries a platen 50. A springdrum 51 is connected to the carriage by a strap 52 and propels the carriage in letterspace direction.

Pivoted at 59 to each key-lever at a point between the ends thereof and just forwardly of the universal bar is a bell-crank lever com prising an arm (50, extending downwardly and forwardly,and an arm 61,extending upwardly. The lower end of the arm 60 is forked at 62 to embrace the rod 22. The upper end of each bell-cran k is connected at 71 by a horizontal link 64 to a type-bar 65, the link extending over the hub of the type-bar, and the pivotal point of connection to the type-bar being indicated at 66.

The type-bars are pivoted concentrically at their rear ends upon a curved rod 75, which is secured in the bottom of a slot cut in the inner periphery of a segment 76. The latter is also provided with a series of radial slots 77, one for each type-bar. hen a type-bar is swung upwardly and rearwardly about the pivot 75, the type enters between the prongs 78 of a center guide, which prongs are arranged in front of the platen and are formed upon the upper ends of a pair of upright arms 7.), carried by a bar 80 and preferably formed integrally therewith. Said bar 80 is horizontally arranged and spans the segment 76 and forms a chord to the arc thereof and is secured at its ends by screws 81 to the upper ends of the segment. 92 is a type-bar rest having a pad 93, and the said rest or basket is secured to the forward ends of horizontal rods 95, which at their rear ends are rigidly attached to the segment 7 6.

Each type bar is provided with two types, the outer one of which is a lower-case type and normally strikes the platen. In order to enable the inner or capital type to make an impression, the type-segment is made shiftable vertically, as set forth in said application. The segment is grooved at each end,

and corresponding grooves are formed in side brackets 102, and. within said grooves are arranged bearing-balls 103. The shifting movemen ts of the segment may be limited by any suitable 1neansas, for example, those shown in my application of which this is a division. As the center type-guide shifts vertically with the segment it lies in proximity to the platen at each of its shift positions. A key 107 on the lever 108 may be used to shift the segment, the-lever 108 acting on an arm 10.) on

a rock-shaft 111, to which latter is secured by collars 112 a pair of rocker-arms 113 and which at their rear ends are connected by links 114 to the lower opposite sides of the segment-casting at 115. A key-lever may be employed to shift the segment.

A ribbon 122 is wound upon the spools 123, one placed at either side of the type-bar system forwardly of the platen and over the top plate 3, the left-hand spool being carried by the upper end of a vertical shaft 124 and the right-hand spool by the upper end of a similar shaft 125. The ribbon extends from the spools backwardly and upwardly to a ribbonvibrator, which is made of sheet metal and comprises a vertical T-shaped operating-arm 126, Fig. 8, the cross-arms of the T being folded back upon themselves at 127 and being provided with upwardly-extending sliding portions 128. The lower end of an, upright ribbon-guiding wire 129 is caught-in the fold 127, and its upper end is hooked over at 130 to prevent escape of the ribbon, which is threaded through the opening or eye 131, formed by the cooperation of said wire with the adjoining vertical plate 128. The latter is also provided with a lateral fold or book 132, which sustains said wire. The ribbon is inserted downwardly between the hook 130 and the upper end of the plate 128 and rests upon the hooks 132. Vertical grooves 133 are provided in the portions 7.) and 80 and are engaged by the plates or slides 128, whereby the ribbon-vibrator is enabled to move freely in a vertical direction, butis prevented from sidewise movement. The grooves 133 are formed by a plate 133, Fig. 7, whose side edges overlap the cut-away rear faces of the upright 79, to which said plate is fixed. Formed integrally with the plate is an index 133", which codperates with a platen-scale 133 At its lower end the arm 126 is formed with eyes 134 for the reception of a horizontal cross-pin 135, with which engages the forward slotted end of a vertical vibrating lever 136, the said arm 126 being forked at 137 to embrace said lever. The latteris pivoted at its rear end upon a shou1der-screw 138, which engages an ear 139, depending from the under side of the top plate. A spring 140, whose forward end is caught under the lever 136, is coiled one or more times about the shoulder of the screw 138 and then extends rearwardly to form an operating-arm 141, the rear end of which is pivotally connected to the upper end of a two-part link 142. The parts of the link are connected by a turnbuckle 143, and its lower end is pivoted at 144 to a stud 145, secured upon the upper side of the rearwardly-projecting ear 25 of the universal-bar frame, so that upon the depression of said frame the link and the arm 141 are drawn downwardly and the lever 130 is swung upwardly,together with the ribbon-vibrator and ribbon, whose normal position is just below the printing-point, (design ated by m) As will be seen by reference toFig. 2, the upward movement of the lever 136 is limited by contact thereof with a button or stop 146 prior to the com pletion of the type-bar stroke. The spring device 140 141 yields after the arm 136 is arrested, so as to permit the completion of the stroke of the universal bar, key-lever, and type-bar. The stop 146 is carried upon the under side of a plate or washer 147, which is placed againstthe under side of the top plate and pivotedthereto, the pivoted portion extending up through a hole in the top plate and being provided with a handle 148. Said washer also carries a second stop 149, arranged at a higher elevation than the stop 1'46 and adapted to be broughtinto position by a swinging movement of the lever. The stop 149 arrests the arm 136 at a later period in the ascent thereof, Fig. 5, so that the ribbon is carried farther up at each key-stroke, and hence the lower portion of the ribbon is used. The pivot 150 is formed integrally with the plate 147 and near its upper end is squared at 151 to fit in a hole formed in the hub of the bandle 148. The tip of the pivot is threaded to receive a jam-nut 152, which secures the handle in position. A flanged sleeve 153 surrounds the pivot and supports these devices upon the top plate 3. The friction between the plate 147 and the under side of the top plate suffices to maintain the former in either adjusted position. A stop-pin 154 depends from the top plate in position to engage the ends of a recess 155, formed in the edge of the plate 147, so as to limit the movements of the latter in either direction.

A lateral stop-pin 156 may be fixed in the ribbon-throwing lever 136 directly over the spring-arm 141, so as to limit the upward movement of the latter. of this stop-pin the spring 140 may be normally under tension, while the link 142 returns the said lever 136 and the ribbon-vibrator to normal position. Said lever may be provided with a lateral ofiset 157, formed upon a rearward extension or arm 158 and adapted to engage the rear edge of the lug 139 to prevent the lever from being depressed too far. The handle 148 extends forwardly to a convenient position, so that the operator can instantly set the

stops

146 and 149 to cause the ribbon to be used along either side of the center, whereby the life of the ribbon may be prolonged.

At Fig.4 the ribbon is shown in full lines as raised to its highest position, in which its lower portion is used, the vibrator having been arrested by the upper stop 149.

The ribbon is also indicated by dotted lines a, in its normal or disuse position and by dotted liuesb in an intermediate position, in which its upper portion is being used, the vibrator being arrested at this time by the stop 146. The number of stops for limiting the movement of the arm 136 and the vibrator may exceed two, if desired,depending on the width of the ribbon. Of course instead of the two By the employment stopsshown one stop only may be employed and a space be left for the further movement of the lever, in which case the top plate may act as a stop.

Preferably the ribbon occupies a uniform normal position, and it will be seen that I have provided means for moving the ribbon edgewise to cover and uncover the printingpoint, and thereby expose the letter printed, and means, including a variable connection 141, for changing the edgewise throw of said ribbon, so as to cause it to move to a different extent, and thus use a diiferent portion of the ribbon widthwiseand yet enable the ribbon to retl'lrn always to normal position to uncover the printing-point. The variable connection 141 is provided for the purpose of enabling the ribbon-vibrator to be moved unequal distances, while the universal-bar arm 25, which operates said connection, may always have uniform movements. Thus the last letter printed, as well as other letters in the vicinity thereof, may always be readable by the operator, means being provided for enabling the ribbon to return to a single and the adjustment for utilizing the various portions of the ribbon widthwise, and in consequence there is at alltimes afforded a uniform space or field of vision between the edge of the ribbon and the printing-point, which is less confusing and trying to the eyes of the operator than would be the case if the widthwise adjustments of the ribbon were such that the ribbon did not return always to a single uniform normal position, and hence when at rest remained at different distances fromthe printing-point,thusmakingthe space between theedge of the ribbon and the printing-point ununiform or different at different times, according to the adjustment of the ribbon. Moreover, my improvement enables me to arrange the forward edge of the ribbon nearerthe printing-point,and'thus, forthe major part of the work, reduce the throw of the ribbon, which is desirable, since it-isless fatiguing and annoying to the eyes, while at the same time my-improvement also assist in guiding or directing the eyes to the printing-point, as the forward edge of heribbon when at rest always stands in oneposition and in proximity'to the pointof the type im pressions, and this arrangement, it"wil'l be understood, greatly facilitates the work of making corrections, since the forward edge of the ribbon may assist the eyes in determining the amount of rotation of the platen to bring the portion of the sheet to be corrected to the printing-point.

It will be understood that the ribbon-vibrator does not.- shift together with the segment and the type'guide structure and that both lower-case and capital types strike upon the same line upon the ribbon.

Owing lo'the sliding engagement 133 the typeguiding de-:

vices are enabled to shift vertically without 1 interference by or with the ribbon-vibrator.

The devices for notifying the operator to reverse the ribbon are illustrated at Figs. 1, 4, and 6. The ribbon is threaded between vertical pins 159. Any suitable obstruction maybe placed upon the ribbon near each end thereof of sufficient size to prevent its passage between these pins 159. The latter are secured at their lower ends upon the inner extremity of a horizontally'arranged lever 161 of the first order, which is pivoted, by means of ascrew 162, upon a boss 163, rising from the top plate. To the outer end of said lever is pivoted at 164 the forward end of a horizontal link 165. The latter is slotted at its rear end to engage a shouldered screw 166, which is secured upon an upwardly-extending cal-167 of an arm 167, the rear ends of said arms being pivoted at 168 to ears 169, rising from the top plate, and the forward ends of said arms being rigidly united by a trans erse horizontal bar 170, the latter and the arms taken together forming a bail. The point 166, at which the link is connected to the bail, is arranged a short distance above the pivotal point 168 of the bail, so that a movement end wise of the link causes the bail to swing downwardly. About midway between its ends the bail is provided with a slot or opening 171, through which projects a horizontal pin 172, which extends rearwardly from the free end of an arm 173, which is pivoted by a screw 174 to a lug 175, rising from the top plate, To the arm 173 is united a pendent arm 176, the lower end of which ishooked at 177, so that by a swinging movement about the axis 174 it may engage the under side of the arm 35 of the dog-rocker and intercept the latter in its vibratory movements. As the ribbon continues to wind upon the full spool after the engagement of the obstruction 160 with the pins 159 the latter, together with the lever 161, are vibrated about the pivot 162 and the link 165 is pulled forwardly. The opposite link 165 remains at rest, owing to its slot or lost-motion engagement with the screw 166. The pull exerted by the active link 165 upon the bail causes the transverse bar of the latter to swing downwardly about the axis 168. This permits the hook 177 to swing into engagement with the under side of the arm 35, the slot 171 being of suflicient size to permit a full movement of the bail whether or not the point of the hook strikes the side of the arm 35 during the bail movement, thus insuring that the pressure exerted by the ribbon obstruction upon the pins 159 shall not be transmitted to the hook 177 and cause the latter to rub against or interfere prematurely with the movement of the dog-rocker. \Vhen the hook 177 catches beneath the under side of the dogrocker arm, it prevents a full movement of the link 32, universal bar 20, key-lever 4, and type-bar 65, so that the keys cannot cause the types to move to the printing-point, thereby notifying the operator that it is time to reverse the ribbon. This is accomplished in the usual manner by giving an endwise movement to a transverse driving-shaft 178, which is connected by beveled pinions 179 180 and ratchet-wheel 181 to the carriage driving spring-barrel 51 and which carries at its ends beveled pinions 182, which may engage one at a time, according to the endwise position of the shaft, with beveled pinions 183, provided upon the rear ends of horizontal shafts 184, all as common in the ordinary Remington machine. Each of the latter is permanently connected by beveled pinions 185 and 186 to the vertical spool-shafts 124 125. When the ribbon begins to wind upon the empty spool, the lever 161 is returned to normal position by a spring 161 and rests against a stop-pin 161. The bail is raised by a spring 170.

In case ribbons of various colors are carried simultaneously by the spools pins or other obstructions 160 may be appropriately placed so as to cause the keys to be locked when either end of any ribbon is reached.

In operation when a key-lever4 is depressed the universal bar 19 and its supporting-frame are forced downwardly about the axis 22, thus pulling down the link 32 and actuating the dog-rocker. At the same time the link 142 is pulled down and through the yielding arm 141 vibrates the lever 136 about its axis 138, thereby raising the ribbon carrying frame, the guiding edges 128 of which slide in the grooves 133, provided upon the

parts

79 and 80.. The ribbon-frame and lever 1.36 are arrested by either of the

stops

146 or 149, according to the adjustment thereof effected by the lever 148. In case the stop 146 is in active position the ribbon-frame and ribbon are arrested when the upper portion of the ribbon covers the printing-point, or if the stop 149 is in active position the frameand ribbon are permitted to move upwardly until the lower portion of the latter covers the printing-point, in which case the contact between the lever 136 and the stop 149 may occur at about the time the type makes its impression; but in the former case the contact between the lever and the lower stop 146 occurs during the downward stroke of the key and before the completion of the movement of the universal bar and link 142, and the springarm 141 yields to permit the completion of the movements of said link and universal bar. When the finger-key is released, the parts are all returned to normal position by reaction of the springs, as usual. As the keylever rises the bell-crank 61 and link 64move forwardly and the type-bar drops upon the basket, the universal bar and its frame move movement of the upright arm 40 of the dogrocker the detent 42 releases the escapementwheel 43, thereby permitting the latter to advance one step or'until it is arrested by the feeding-dog 41 in a well-known manner. The movement of the escapement-wheel is effected by the carriage-rack 47, pinion 4:6, and shaft 45, the movement of the carriage being caused by the spring-drum 51 through the strap 52, as usual. At the movement of the drum the ribbon is caused to wind upon the right-hand spool at Fig. 6 by means of the

pinions

180 and 179, shaft 178,

pinions

182 and 183, shaft 184, pinions 185 and 186, and vertical spoolshaft 125. When the ribbon is nearly all discharged from the left-hand spool, the obstruction engages the pins 159 upon the lefthand lever 161, and during the continued longitudinal step-by-step movements of the ribbon vibrates rearwardly the inner arm of said lever about the axis 162, the outer arm of the lever vibrating forwardly, and by means of link 165, screw 166, and ear 167 efiecting a vibration of the bail about the axis 168, the bar 1'70 of said bail moving downwardly and permitting a vibration or gravitation of the arm 173 and hook 176. The hook swings into position beneath the arm 35 of the dog-rocker and intercepts the latter in its downward movement, thereby locking the printing mechanism, or, in other words, preventing the keys from swinging the types to the printing-point. Should the point of the hook 177 be arrested by contact with the vertical side of the arm 35 during the vibration of the latter, the bar 172 and its connections, including the lever 161, are nevertheless permitted to continue in motion owing to the provision of the slot 171 in the bar 170. During the locking operation the right-hand lever 161 and link 165 remain motionless, the slot in the rear end of the link permitting the vibration of the bail. By the locking of the keys the operators attention is called to the fact that the ribbon is discharged from one spool, and he thereupon shifts the shaft 178 longitudinally to disengage the right-hand and reengage the left-

hand pinions

182 and 183.

to pay ofi the ribbon. The returning-spring 161 vibrates the lever 161 from the dottedline to the full-line position at Fig. 6, enough ribbon paying off from the right-hand spool to permit said movement of the lever. In order, however, to insure a prompt movement of the lever 161, the operator may, after shifting the shaft 178, give the same one or two rotations by means of the crank shown at the left-hand end thereof, thereby winding some ribbon upon the left-hand spool and withdrawing the obstruction 160. Upon the return movement of the lever the link 165 moves rearwardly and permits the bail to be lifted by the spring 170, by which movement of the bail the arm 173 is lifted and the hook 177 swung out of engagement with the arm 35. Thereafter during the operation of the keys the ribbon will wind upon the leftintegral therewith.

7 By this op eration the full spool is disconnected from the carriage-spring drum and becomes free hand spool and pay off from the right-hand spool until the latter becomes empty, when the catch 160, provided upon the right-hand end of the ribbon, will engage with the pins 159 upon the right-hand lever 161 and lock the printing mechanism in the described manner, whereupon the operator again reverses the ribbon-winding mechanism and the ribbon begins to wind upon the right-hand spool.

Various changes in detail,co ustruc tion,-and arrangement may be made without depapting from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is-- 1. In a front-strike type-Writing machine, the combination with a platen and a series of type-bars, of a ribbon-vibrator, comprising an operating-arm 126, cross-arms thereon, folds 127in said cross-arms, and upwardly-extending sliding members 128 at the ends of said cross-arms, and a support having grooves for said members 128 to slide in. i

2. In a front-strike type-writing machine, the combination with a platen and a series of type-bars, of a ribbon-vibrator comprising an operating-arm 126, cross-arms thereon, folds 127 in said cross-arms, upwardly-directed sliding members 128 at the ends of said crossarms, and ribbon-guiding wire 129 caught in each of the folds 127, and a support having grooves for said members 128 to slide in.

3. In a front-strike type-writing machine, the combination with a platen and a series of type-bars, of a ribbon-vibrator comprising an operating-arm 126, cross-arms thereon, folds 127. in said cross-arms, upwardly-directed sliding members 128 at the ends of said cross arms, a ribbon-guidingwire 129 caught in each of the folds 127, hooks 132, and hooks 130, and a support having grooves for said members 128 to slide in.

4. In a front-strike type-writing machine, the combination with a platen and a series of type-bars, of a center type-guide, a grooved support therefor, and a ribbon-carrying frame constructed to slide in the groove.

5. In a front-strike type-writing machine, the combination with a platen and a platen- ITO scale, of type-guide 78, grooved supports 79,

plate 133 secured upon the rear side of said supports and overlapping the grooves therein, index 133 provided upon said plate, and a ribbon-vibrator working in the grooves.

6. In a front-strike type-writing machine, the combination with a platen and a series of type-bars, of type-guide 78, grooved supports 79, overlapping plate 133 and a ribbon-vibrator having plates 128 working between the plate 133 and the grooved supports 79.

7. In a front-strike type-writing machine, the combination with a platen and a series of type-bars, of type-guide 78, grooved supports 79, overlapping plate 133, a ribbon-vibrator having plat-es 128 working between the plate 133 and the grooved supports 79, and an operating-arm 126 in rear of said plates 128 and 8. In a visible-writing machine, the combination with a platen and a series of type-bars, a segment supporting said type bars, and means for shifting said segment, of a typeguide, a support for said type-guide carried by said segment and shifting therewith, and a ribbon-vibrator guided upon said support but not shifting therewith.

9. In a frontstrike type-writing machine, the combination with a platen, a series of types, and a ribbon-winding mechanism, of a ribbon-vibrator constructed to cause'the ribbon to cover the printing-point at each typestroke, and adjustable means for arresting the movement of the vibrator at different distances from a single normal position thereof so that different widthwise portions of the ribbon may be used, and so that the ribbon may always return to the same normal position for all adjustments of said arresting means.

10. In a front-strike type-writing machine, the combination with a platen, a series of types, and a series of operating-keys, of a universal bar, a ribbon-vibrator having a yielding connection to the universal bar and constructed to carry the ribbon over the printing-point at each stroke of the keys, and ad justable means for arresting the movement of the vibrator so as to use different widthwise portions of the ribbon.

11. In a visible-writing machine, the combination with a platen, a series of types, and a series of operating-keys, of a ribbon-carrier, an operating-arm therefor, a top plate, and an adjustable stop thereon for variably arresting said operating-arm at different distances from a single normal position thereof, said arm returning always to the same position for all adjustments of said stop.

12. In a visible-writing machine, the com bination with a platen, a series of types, a universal bar, and a series of operating-keys, of a ribbon-carrier, an operating-arm therefor, an adjustable stop for said operatingarm, and a yielding connection from said universal bar to said operating-arm.

13. In a front-strike type-wri ti ng machine,

, the combination with a platen, a series of types, and a series of operating-keys, of a ribbon, means for moving the ribbon widthwise at each key-stroke from a single normal position to cover the printing-point, and means for causing different widthwise portions of the ribbon to be subjected to the blows of the types, while permitting said ribbon to return always to a single normal position, regardless of which particular widthwise portion thereof may be in use.

14. In a front-strike type-writing machine, the combination with a platen, a series of types, operating-keys therefor, and a universal bar,of a ribbon-vibrator, operating-arm 136, a plurality of stops for said arm, pivot 138, spring 140 coiled around said pivot and connected to said arm at one end and prolonged at theother end to form operating-arm 141, and link 142 attached at one end to said arm 14-1 and at the other end to said universal-bar frame.

15. In a type-writing machine, the combination with a ribbon, a vibrator and an operating-arm, of

stops

146 and 140 pivoted plate 14-7, handle 14S, and stop 15%.

16. In a visible-writing machine, the combin ation wit h a platen, of a series of type-bars each provided with a plurality of types, a ribbon, a ribbon-carrier, means forenabling each of said types to strike the ribbon at the same point, and means for throwing said ribboncarrier different distances and thus moving the ribbon variably to cover the printing point so as to expose different widthwise portions of the ribbon to the blows of the types.

17. In a front-strike type-writing machine having a top plate, the combination of a platen,a series of type-bars,a ribbon,and a ribbon-vibrator, of a lever arranged beneath the top plate and connected to the vibrator, adjustable stops arranged between the lever and the top plate, and a handle arranged over the top plate and operatively connected to said stops.

18. In a type-writing machine, the combination with a printing mechanism, of a pair of ribbon-spools, a pair of levers, pins fixed upon each of said levers, a ribbon threaded through the pins upon each lever, obstructions placed upon the ribbon, and means operated by said levers for locking the printing mechanism.

. 19. In a front-strike type-writing machine, the combination with a printing mechanism, of a pair of ribbon-spools mounted upon upright shafts and arranged upon each side of the printing-point, a pair of levers arranged beneath the spools, means for enabling the ribbon to operate said levers, and means operated by said levers for locking the printing mechanism.

20. In a type-writing machine, the combination with a printing mechanism, of a pair of ribbon-spools, a pair of levers, pins fixed to each lever, a ribbon threaded between the pins on each lever, obstructions upon the ribbon, a spring connected to each lover, a stop for each lever, and means connected to each lever for locking the printing mechanism.

21. In a type-writing machine, the combination with a printing mechanism, of a pair of spools, a pair of two-arm levers, pins fixed upon one arm of each lever, and mechanism operated by the other arm of each lever for locking the printing mechanism.

22. In a type-writing machine, the combination with a series of types, a series of keys therefor, a carriage, and an escapement mechanism including a dog-rocker, of a pair of ribbon-spools, a pair of levers, a ribbon engaging the levers, a pair of links pivoted to said levers, a bail to which said links are loosely pivoted, and a hook engaging said bail and adapted to intercept said dog rocker and thereby lock said rocker and said keys.

23. In a front-strike type-Writing machine,

the combination with a printing mechanism and a ribbon, of levers 161, pins 159 thereon, links 165, a bail comprising arms 167 and bar 170, arm 173, hook 176, and a dog-rocker 0perated by the keys of the printing mechanism.

24. In a type-writing machine,thecombination with a printing mechanism, a ribbon, and" ribbon-spools, of levers 161, pins 159 thereon, slotted links 165, bar 170, arms 167, ears 167 arm 173, pin 172 thereon, hook 176 integral with said arm, and a key-operated dog-rocker including operating-arm 135.

25. In a front-strike writingmachine, means for moving the ribbon edgewise to cover and uncover the printing-point, and thereby expose the letter printed, and means for changing the edgewise throw of said ribbon so as to cause it to move to a different extent and thus use a dilferent portion of the ribbon widthwise and yet enable the ribbon to return always to normal position to uncover the printing-point.

26. In a type-writing machine, the combination with a ribbou-carrier,of means for causing said carrier to move the ribbon edgewise from a uniform'normal position variable distances across the printing-point, and the construction being such that the ribbon will return always to normal position to uncover the printing-point.

27. In a type-Writing machine, the combination with a series of types, a series of keys, and a ribbon-vibrator which holds the ribbon at a single normal position so as to expose the printing-point, of means for changing the extent of throw of the ribbon-vibrator from said single normal position; said meansincluding a variable connection arranged between the keys and the ribbon-vibrator.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 14th day of September, A. D. 1900.

JACOB FELBEL.

Witnesses:

K. V. DONOVAN, E. M. WELLS.