US1160912A

US1160912A - Type-writing machine.

Info

Publication number: US1160912A
Application number: US866937A
Authority: US
Inventors: Emmit G Latta
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-02-15
Filing date: 1914-10-16
Publication date: 1915-11-16
Anticipated expiration: 1932-11-16

Description

E. G LATTA.

TYPE WRITING MACHINE. APPuAnoN man oc.1s.1914.

Patented Nov. 16, 19l5.

5 SHEETS-SHEET l.

.E a xm E. G. LATTA.

TYPE wRmNG MACHINE.

APPLICATION FILED OLI. I6. |914. 1.160912. Patented Nov. 16. 1915.

E. G. LATTA.

TYPE WRITING MACHINE.

APPLICATION man ocr. 1s. |914.

Patented Nov. 16, 1915.

5 SHEEIS-SHEET 3.

E. G. LATTA.

TYPE WRITING MACHINE. APPucmoN FILED ocT.1e. 1914.

5 SHEETS-SHEET 4.

Patented Nov. 16, 19I5.

fnv er? fr.' MJ. ya

@ZM W :mais revus wc mno www1 c c E. G. LATTA.

TYPE WRITING MACHNE.

APPLicATmN FILED oct. 16, 19m.

1 ,16091 2. Patented Nov. 16, 41915.

5 SHEETS-SHEET 5.

UNITED sTATEs PATENT OFFICE.

EMMIT G. LATTA, OF SYRACUSE, NEW YORK.

TYPE-WRITING MACHINE.

Original application led February 15,

To all ywhom t may concern Be it known that I, EMMIT G. LATTA, a citizen of the Unit-ed States, residing at t yracuse, in the county of Onondaga and State of New York, have invented a new and useful Improvement in Type-Writing Machines, of which the following is a specification.

This invention relates to improvements in front strike or visible writing typewriting machines in which the type-bars are mounted on a supporting segment which is adapted to be shifted for placing one or another of the sets of type on the type-bars in printing relation to the platen.

This 'applicationis a division of my copending application Serial No. 608,657, tiled February 15, 1911. v

One object of the invention is to provide a typewriting machine of the Moyer make with a shiftable type-bar segment and adapt the ri-bbon vibrating mechanism and other features of the machine for coperation with such a shiftable segment, as hereinafter described and set forth in the claims.

Other objects'of the invention are to provide a typewri'ting machine having a shift able type-bar segment with eflicient and practical mechanism for operating the ribbon vibrating device as well 'as the carriage escapement by the'direct action of the typebars; also to arrange and connect the parts of the machine in such a way that they can beassembled and dismounted with ease and rapidity; also to connect'the ribbon vibrator lever directly to the universal bar without the useof intermediate or separate` loose connections, and to do this in a way that permits of different motions of the vibrator for moving either one of a plurality of different portions or fields of the ribbon to and from position for printing, and permits the ,vibrator to be thrown out of action; and also to improve visible writing typewriting machines in the other respects hereinafter described and set forth in the claims.

In the accompanying drawings, consisting of ,live sheets: Figure 1 is a longitudinal sectional elevation o f. a typewriting machine embodying the invention.` Fig. 2 is a frag- Specicatioii of Letters Patent.

top plate.

Patented Nov. 16, 1915'.

1911, Serial No. 608,657. Divided and this application filed October 16, 1814. Serial No. $66,937.

mentary similar sectional elevation showing the'position of the parts when the segment is shifted. Fig. 3 is a longitudinal sectional elevation, on a reduced scale, of the top plate of the machine. Fig. 4 is an enlarged sectional elevation of the operating means for the ribbon vibrator. Fig. 5 is a plan view, partly in section, of the machine, the carriage being removed and the carriage guide being partly broken away to disclose the underlying parts. Fig. 6 is a rear elevation thereof partly broken away and partly in section, in line 6 6, Fig. 1. Figs. 7 and 8 are respectively a fragmentary longitudinal sectional elevation and a rear elevation, partly in section, of a modified construction.

`The construction illustrated in Figs. 1-6 will be first described.

A represents the main frame of the machine; B the top plate thereof; C the platen carriage which supports the platen c; D the carriage escapement; E one of the type-ba'rs which are pivoted in an arc below the carriage so that the type-bars can swing upwardly and rearwardly to make the impressions at the front side of the platen; F the key levers and f one of the auxiliary levers operated thereby for actuating the type-bars. These parts, except as hereinafter explained, are constructed, arranged and operate as in the Moyer typewriter and are illustrated to show their relation and coaction with the other parts of the machine.

The top plate B preferably consists of a single casting of substantially uniform thickness throughout which is removably secured on the main frame A, for instance, by screws b, Fig. 5, at the four corners of the The front and rear portions of the top plate are in different horizontal planes and the connecting middle part is curved as shown best in Fig. 3. The middle part has two raised side portions b b', Figs. 3 and 5, forming forwardly inclined flat seats for a carriage track or guide member or casting B. The central part of the top plate is removed or provided with an opening b2 having large ,front and rear portions and a narrow connecting portion to permit the type-bars to swing to the platen and to admit the universal bar, ribbon vibrator and other parts when assembling them in the machine. The horizontal front portion of the top plate is preferably provided at opposite sides with depressions fr having inclined bottoms to enable the ribbon spools, one of which is shown at 6*, Fig. l, to be arranged in an inclined position with their front lower edges below the surface of the front part of the top plate so as to deliver the ribbon in line. with the ribbon vibrator.

The carriage track member or casting B supports the guide or track on which the carriage travels transversely of the machine. The carriage track or guide Ff shown is of ball bearing type used in the Moyer machine., but a track or guide of an) other suitable sort could be used. The. track casting B is rigidly secured on the inclined seats L of the top plate, for instance, by four screws 71", two of which are shown in Fig. By the use of a separable track member or casting secured on the top plate the machine can be readily supplied with track castings of dif ferent lengths suitable for different length carriages, and the casting with the parts carried thereby can be readily secured in place and removed from the machine.

The carriage escapement D is mounted on a suitable bearing )art (l on the rear `central portion of the traclc castin B', the shaft d: of the escapement wheel belng, as usual, proyided at its front end with a gear pinion Z2 which meshes with a rack bar d3 on the carriage.

G represents the segment or support for the type-bars. The. segment'preferably consists of a curved or segmental casting having a slotted iange projecting forwardly from its upper edge in which hangers g for the type-bars are secured by a clamping plate g and screws g2 missin; through the plate and between the linger mto the segment, as in the Moyer machine. The segment is movably mounted so that it can be, shifted vertically on a central arm h and two side arms 7b k', the front ends of which are pivoted in slotted lugs h2 on the rear side of the segment. The side arms h k yare rigidly secured at their rear ends to a rock shaft H which is suitably journaled at its ends on the opposite sides of the main frame, and the central arm h is forked and has the rear ends of its two branches pivoted in lu'fs h3 projecting upwardly from a bar itt which is rigidly secured to the rear portion of the main frame and to which the rear ends of the key levers are pivoted. The segmentsupporting arms are parallel and thus hold the segment upright in its normal and shifted positions.

I represents a cam or cam lever for shift ing the segment. This shifting cam is fixed centrally on a horizontal rock shaft a' and is provided with a cam slot in which Works a roller e" journaled ou a bracket 2 which is secured in any suitable way to and projects forwardly from the middle of the segment. The end portions of the cam slot are preferably substantially concentric with the axis of the cani so that the segment will be locked from movement when the roller enters either of these end portions of the slot. The rock shaft i is journaled at its ends on the sides of the main frame and. has rigid forwardly projecting arms i at its opposite ends which rest on the upper rocker-shaped edges of shift hey-levers i fulcrmned at i5 between their ends. (.)ne of the shift keylcrers is shown in Fig. l. By depressing the front end oteither of the shift keydevers the rock shaft and cam il, are 'rocked with an :uceleratiuUr motion and shift the segment. together with the type-bars and other parts supported thereby, from the position shown in Fig. l to that shown in Fig. 2. suitable springr i", lig (i, on one end of the rock shaft 2'y arts to start the rock shaft und cam from the shifted position as soon as the shift keyle\er is released. llvhcn the roller passes out of the concentric end portion of the cam slot the weight of the segment and the parts thereon will force the cam back to its normal position. A spring (not shown) is usually employed to partially support the weight of the shifting parts and reduce the exertion necessary to effect the shift. The location of the shift cam centrally under the shifting parts or substantially at the center of gravity thereof makes the shift action quick and easy.

The segment is preferably mounted and shifted as above described, but it could he differently mounted and shifted by other means.

As indicated by the shade lines in Figs. l and 2, both the central key-lever I" and the auxiliary lever f are slightly offset sidewise where they pass the shift cam to make room for the movement of the cam between these closely arranged parts.

The universal bar, as heretofore in the Moyer typewriter. consists of a rock shaft which is operated by one or more actuators which are struck and moved by the typediars as they approach the platen. K l( represent the universal bar actuators and li the uni versal bar.

'The two actuators K l( are shown in the construction illustrated in Figs. l-l of the drawings. They consist of two curved bars arranged over the pivoted ends of the type bars so that each actuator is adapted to be struck and actuated by any one of the typebars on the adjacent half of the segment just before the type-bar reaches the platen. Each actuator is supported by two bars 7c 7.5 which are rigidly secured to and extend rearwardly from the actuator and are pivoted to the upper ends of arms k2 [c2 extending upwardly and inwardly from a rock shaft 7c3 journaled on the segment, for 1nstance between two pivot lugs le* on the rear side of the segment. The inner supporting bars k k' of the two actuators extend beyond the arms k2 k2 of the rock shafts and are pivotally connected to the upper ends of links k les which are suitably pivoted at their lower ends to the rear ends of brackets les 7c rigidly secured to and projecting rearwardly from the segment. The supporting bars k It" preferablyr consist of sheet metal stampings and have lateral projections at their front ends which are bent to fit the actuators, to which they are riveted, and the inner bars la it" have cross pieces tf at the rear ends which are slightly twisted so as to stand vertically in front of the lower ends of arms Z whlch are fixed to and depend from the universal bar L. The rock shafts k3 k3 cause a corresponding motion of both ends of the actuators when struck by the typebars regardless of the point at which the actuators are struck, thus insuring a uniform action of the universal bar and the parts operated thereby, and the connection of the links lc5 h5 to the extensions of the bars lo L" acts to retain the actuators K K in their proper relation to the type-bars and cause them to move in a substantially horizontal direction. ln the normal position of the segment, shown in Fig. l, the upper parts of the rear ends of the bars c L" rest against the lower ends of the arms Z l of the universal bar, and when the segment is shifted the lower parts of said rear ends rest .against the arms l Z, as shown in Fig. 2. Therefore the action of the universal bar is the same in both positions of the segment.

les n represent springs for returning the actuators to the normal position after actuation. Coil springs are shown for this puri pose connected at their rear ends to the actuator bars k -k and at their front ends to a bracket la" secured to the segment.

The universal bar L is preferably journaled on end pivots l l which are fixed by arms l2 to a supporting rod l which is arranged to slide endwise in bearings l4 on the underside of the trackfcasting B. The supporting bar is detachably connected, for instance, by a` pin Z5, Fig. 6, with a shifting lever or device (not shown) whereby the universal bar can be readily adjusted endwise to either of four different positions. The pivots l' l' for the universal bar preferably extend through guide holes in the bearings l* on the track casting B. l represents a spring for returning the universal bar to the normal position. The spring shown connects one of the universal bar arms l to a bracket l* fixed tc the supporting rod Z3, so that the spring is not affected by the adjustment of the universal bar. The universal bar operates the carriage escapeinent D preferably by an arm 8 which projects rearwardly from the universal bar and is connected by a link /9 to the pawl lever of the carriage escapcmcnt.

M represents the ribbon 1vibrator or guide for vibrating the ink ribbon m to and from the printing position between the type-bars and the printing point of the platen. The vibrator, 4which may be of the construction shown or of any other suitable construction. is preferably arranged to reciprocate vertically on a stationary upright guide m and is connected at its lower end to a vibrating or operating lever m2. As shown, the vibrator guide m is rigidly secured by screws. or otherwise, to the front end of a forwardly projecting extension m3 of the track east.- ing B', and the vibrator M is confined between the rear side of the guide m and a line gage and center scale m* which is secured to the rear side of the vibrator guide m. The lower portion of the vibrator extends downwardly through a slot in the eX- tension m3 of the track casting B and has a rearwardly bent lower end which enters and is removable from a slot in the front end of the vibrator lever mi. The vibrator and its guide have registering holes through -which the scale on the scale bar m5 of the carriage can be seen, and the vibrator is provided with an index or pointer m coperating with said scale to indicate the position of the printing point. The upper ends of the vibrator M. vibrator guide m and the line gage m* are slotted centrally, as shown, to allow the heads of the type-bars to strike the ribbon in making the impressions.

The vibrator lever m2 is suitably fulcrumed between its ends at m7-on the lindersideof the track casting B and is provided N represents an arm rigidly secured to the universal bar and provided at its end with teeth which are adapted to mesh with the toothed segment ms, and n, is an arm located at Ione side of the arm N and provided with offset teeth at its end adapted to enter the opening in the lever and mesh with the toothed segment m9. Preferably the arms N and fn, are separated by a spacing washer n', these three parts being riveted together and rigidl)7 secured to the universal bar by soldering or otherwise, and the arm N is made in one piece with the escapement actuating arm Z8.

ln the position of the parts shown in Figs. l and 5, the teeth of the arm N mesh with the teeth m3 at the rear end of the vibrator lever and when` the machine is operated the upper portion of the ribbon, or the upper lield thereof, in the case of a rib- 'sob bon having different fields, will be vibrated to and from the printing position. By moving the universal bar to the right, as viewed in Fig. 6, the teeth of the arm N are moved out of mesh with the teeth ms of the vibrator lever and the teeth of the other arm n are placed in mesh with the other teeth m of the vibrator lever and then the lower portion or field of the ribbon will be vibrated to and from the printing position when the machine is operated. lf the universal bar is moved to the left, to a third position, the vibrator lever is freed from both of the arms N and n and the ribbon vibrator will then remain inactive when the machine is operated, thus permitting the cutting of stencils.

The lower ends of the arms Z 7 of the uni-1 versal bar are provided with cross pieces or lateral eXtensions of sufficient width to be engaged by the actuator bars 7: le in either of the three positions of the universal bar just mentioned. If, however, the universal bar is moved still farther to the left, the lower ends of the arms Z Z are moved out of line with the actuator bars 7c le', and then either of the actuators K can be moved rearwardly from above the type-bar hangers g so that the hangers can be detached from the segment by loosening their securing screws and disconnecting the type-bars -from their actuating links without removing the clamping plate g for the hangers. The lower end of the actuating link Zn for the escapement swings laterally when the universal bar is shifted., but the movement thereof is not great enough to interfere with the perfect action of the escapement in the three operating positions of the universal By locating the escapement operating arm ZB of the universal bar over the rear portion of the top plate,l as shown in Fig. 1, providing the openings in the top plate, and detachably connecting the universal bar to its shifting device, the track casting B with the complete carriage, universal bar, escapement and ribbon vibratingr mechanism can be detached from the top plate, by simply removing the securing screws for the casting, detaching the ribbon from the vibrator, and disconnecting the draw-band fn* that connects the carriage to its spring driving drum. This is a great convenience in assembling, cleaning and repairing the machine, and in changing it for carriages of dierent lengths. It will be observed that the universal bar is not connected tothe actuators on the segment and consequently there are no parts requiring to be disconnected to permit the removal of the top plate or the track casting with the parts supported by the same.

The ribbon feeding and reversing mechanism form no part of this invention and are therefore `not shown or described, but this mechanism is mounted as heretofore, on the top plate B, and as the ribbon spools and the vibrating mechanism are also mounted on the top plate, as shown, it will be evident that the top plate with the complete ribbon operating mechanism, together with the other parts mounted on the top plate, can be removed from the machine by simply detaching the top plate and without disconnecting "any other parts.

O represents a center guide for properly guiding the type-bars to the printing point on the platen. The center guide is secured by screws, or otherwise, to an upwardly pro.- jecting horn or extension o on the middle portion of the segment. This horn curves rearwardly just above the segment or has a recessed front side otherwise formed to afford room for the actuators K to be moved to the rear far enough to permit the detachment of the type-bar hangers from the segy ment. as before explained. The center guide 0 extends upwardly and forwardly from the segment to a point in front of the lower end of the vibrator guide m', then vertically in front of the latter, and its reduced upper end o extends rearwardly into the slotted upper e'nd of the vibrator guide. This upper end o of the center guide is slotted to receive the guiding heels or parts 02 at the outer ends of the type bars. The center guide, which shifts with the segment G, has an elongated opening o3 to enable the scale bar Vm5 to be seen through the openings of the ribbon vibrator M and its guide m', in either' position of the center guide, and the center guide also has a larger opening 0* below the opening o3l that admits the lower end of the vibrator guide, the vibrator, and the front end of the vibrator lever m2 when the center guide is in the raised or shifted position. lhile the center guide O shifts with and thus always retains the same relation to the type-bars, the vibrator guide m' is stationary and remains in the same relation to the vibrator M.

P represents the back stop, or rest, for supporting the outer ends of the type-bars in the normal position thereof. This back stop is also supported from the segment so as to shift therewith, for instance, by posts p which are rigidly secured to the ends of the segment in any convenient way and project forwardly therefrom Figs. 7 and 8 show a modified construction of the segment, anduniversal bar mecha nism which is less expensive than that before described. In this construction, G represents the segment. The type-bars E Vare pivoted on the segment by a curved pivot wire g, thereby dispensing with the separate hangers and bearings used in the first construction. A single curved universal bar actuator K is used which is long enough to be struck by all of the type-bars, it is supv ported by two rock shafts 'y' journaled one in rear of the other in brackets f/`l projecting reawardly from the segment (i and having upright arms o and (it, respectwly, which are pivoted to supporting bars on projecting rearwardly from the actuator K. 'l` he universal bar L has a single, pendent arm q pivoted .to the rear end of a link q" which it its front end has a pin and slot connection q2* with a bracket fl" on the actuator. The pivot between the link and thc actuator normally occupies a position below the level of the pivot between the link and the arm o". and when the segment is shifted the former pivot occupies a position a` corresponding distance above that level;y so that the action o f the escapement and ofthe ribbon `vibrator .will be the same in both thc normal and shifted positions of the segment. The pin and slot connection o* allows the actuator to return to no rmal position in advance of the return of the universal bar, and the. connections atthe ends of the link are loose enough to permit the universal bar to be moved to change the throw. of the ribbon vibrator as before described, without alter-ting the actionof the'universal bar. This segment is mounted and operated in the saine way as that first described and. as in the first coustruction', the universal bar actuator. the center guide O for the type-bars, and the back stop P for the type-bars are supported by and shift the segment. The segment and the parts supported thereby with but slight changes in one or two of the parts. are interchangeable with the correspoiuling parts in 4the construction first ijlescribed. This modified construction is less desirable than .that first described, but itlinyolyes a greatly reduced number of parts and therefore desirable for use in cheaper machines,y as it Venables* the manufacturer to produce machines of twoy grades with but little more ex- 'pense than for one.

lVhile it is one of the objects ol this in- `vention to attuate the operating mechanism for the ribbon vibrator and carriage escapement by means supported by a shiftable segment carrying type-bars provided with a plurality of sets of type, the invention is not necessarily restricted in applicationto a machine having such a shiftable segment as it is desirable for some purposes to support the ribbon vibrator and escapement actuating means` on a segment which does not shift whether provided with type-bars having a single set of type. or more than one set of type and used with a shifting platen.

claim as my invention:

1. Ina typewritiug machine, the combination with a main frame,y a platen carriage, a ribbon vibrator7 a series of pivoted type bars, and a supporting segment for the type bars, of means for actuating said ribbon vibrator comprising an actuator supported by said segment in position to be actuated by a plurality of the type bars.

2. In a typewriting machine, the combination with a main frame, a platen carriage, a ribbon Vibrator, a series of pivoted type bars, and a supporting segment for the type bars, of means for actuating the ribbon vibrator comprising a curved actuator movably mounted on said segment in position to be actuated by a plurality of the type bars.

3. ln a typewriting machine, the combination with a main frame. a platen carriage, a ribbon vibrator, a series of pivoted type bars, and a supporting segment. for the type bars. of means for actuating the ribbon vibrator comprising a plurality of actuators movably mounted on said segment and each adapted to be actuated by a plurality of type bars.

4. In a typewriting machine, the combination with a main frame, a platen carriage, aV ribbon vibrator, and a'series of piyoted type bars, of means for actuating the, ribbon yibrator comprising a curved actuator arranged to be actuated by a plurality of the type bars. and a pair of swinging supports for said actuator arranged one in rear of the other and both in rear of said actuator.

In a typewriting machine, the combination with a` main frame, a platen carriage, a ribbon vibrator, a series of pivoted type bars and a supporting segment for the type bars, of means for actuating said ribbon vibrator comprising an actuator arranged to be actuated by a plurality of type bars, vand 'a pair of swinging supports for said actuator piyoted one, in rear of the other on said segment.

6. ln a typewriting machine. the combination with a main frame. a platen carriage, a ribbon vibrator.` a series ot' piyoted type bars having a plurality of sets of type and a shiftablc supporting segment for the type bars, of means for actuating said ribbon vibrator in the dierent positions of the segment comprising a` plurality of actuators moyably mounted on said Segment and each arranged to be actuated by a plurality of the type bars.

7. In a typcwriting machine, thc combination with a main frame, a platen carriage, a ribbon vibrator. a series of piyoted type bars having a plurality of sets of type and a. shiftable supporting segment for the type bars, of means for actuating said ribbon vibrator in the different positions of the segment comprising an actuator arranged to be actuated by a plurality of the type bars, and supporting means for the actuator comprising a rock shaft mounted on said segment and having arms pi totally connected to said' actuator'.

8. In a typewriting machine, the combination with a, main frame, a` platen carriage, a.

ribbon vibrator, a series of pivoted type bars having a plurality of sets of type and a shiftable supporting segment for the type bars, of means for actuating said ribbon vibrator comprising an actuator arranged to be actuated by one or more of the t pe bars and havingarearwardly-extending ar, a pair of swinging supporting arms pivoted to said rearwardly-extending bar, and means adapted to be actuated by said bar in the different positions of said segment.

9. In a typewriting machine, the combination ,with a platen carriage, a series of pivoted type bars having a plurality of sets of type, a shiftable supporting segment for the type bars, and a ribbon vibrator, of means for actuating the ribbon vibrator in different positions of the segment comprising an actuator supported-by the segment and adapted to be actuated by one or more of the type bars.

10. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars having a plurality of sets of type, a shiftable supporting segment for the type bars, and a ribbon vibrator supported independently of the segment, of means for actuating the vibrator in the different positions of the segment comprising an actuator supported by the segment in position to be actuated by a plurality of the type bars.

11. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars having a plurality of sets of type, a shiftable supporting section for the type bars, and a ribbon vibrator sup ported independently of said segment in a relatively fixed position, of means for actuating the said ribbon vibrator in the different positions of the segment comprising an actuator movably supported by said segment and arranged to be actuated by one or more of the type bars.

12. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars, a supporting segment for the type bars, and a ribbon vibrator, of an actuator supported by the segment and adapted to be actuated by one or more of the type bars, and means supported independently of the segment and actuated by said actuator for operating the ribbon vibrator.

13. In a typewriting machine, the combination with a platen carriage, a seriesof pivoted type bars, a supporting segment for the type bars, and a ribbon vibrator, of an actuator supported by the segment and adapted to' be actuated by one or more of` the type bars, and means supported independently of the segment and disconnected from 'said actuator but actuated thereby for operating the ribbon Vibrator.

14. In a typewriting machine, the combination with a platen carriage, a series of pivoter] type bars having a plurality of sets of type, a shiftable supporting segment for said type bars, and a ribbon vibrator, of an .actuator supported by the segment and adapted to be actuated by one or more of the type bars, and means supported independently of the segment and actuated by said actuator in the different positions of the segment for operating the ribbon vibrator.

15. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars, a supporting segment for the type bars, and a ribbon vibrator, 'of an actuator which shifts with the segment and is adapted to be actuated by one or more of the type bars, and means supported independently of the segment 1n relatively fixed position and disconnected from said actuator but actuated thereby for operating the ribbon vibrator.

16. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars, a supporting segment for the type bars, and a ribbon vibrator supported independently of the segment, of an actuator supported by the segment and adapted to be actuated by one or more of the type bars, and means operated by said actuator for vibrating the vibrator to move one or another portion of the ribbon to and from the printing position.

17. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars having a plurality of sets of type, a shiftable supporting segment for the type bars, and a ribbon vibrator, of means for vibrating the vibrator to move one or another portion of the ribbon to and from the printing position, in either position of the segment, comprising an actuator supported by the segment in position to be actuated by a plurality of the type bars.

1S. In a typewriting machine, the combination with a platen carriage, a series of pivoted type bars, a supporting segment for the type bars, and a ribbon vibrator, of an actuator supported by the segment and adapted to be actuated by one or more of the type bars, and a device which is actuated b v said actuator for operating said ribbon vibrator and which is shiftable for changing the action of the ribbon vibrator.

19. In a typewriting machine, the combination with a main frame having a removable top plate, a platen carriage. a ribbon vibrator supported by said top plate, a serieskof pivoted type bars, and a supporting segment for the type bars, of an actuator supported by the segment and adapted to be actuated by one or more of the type bars, and means supported by said top plate and disconnected from said actuator but actuated thereby for operating said ribbon vibrator.

20. In a typewriting machine, the combination with a main frame, a platen carriage, arribbon vibrator supported by said main frame, a series of pivoted type bars, and a si'ipportingsegment -for the type bars, of an actuator supported by the segment and adapted to be actuated by one or more of the type bars, and means supported on the main frame for operating said ribbon vibrator, said ribbon vibrator and said operating means being removable from the machine without disturbing said segment and the parts supported thereby.

21. In a typewriting machine, the combination with a platen carriage. a series of pivoted type bars provided with a plurality of sets of type, and a shiftable supporting segment for the type bars, of a ribbon vibrator, an actuator for said vibrator supported by said segment, a stationary guide for said ribbon vibrator. and a center guide for the tvpe bars which is supported by and shifts with said segment.

22. In a typewriting machine. the combination with a universal bar and means for actuating the same at the type strokes. of a ribbonguide, a vibrating lever which is directly connected to said ribbon guide and is operatively connected directly to said universal'bar by means which are adapted to be adiusted to produce different motions of the vibrating lever. i "l 23. In a typewriting machine, the ctmbi# nation with a universal bar which is adjustable to different operative positions, and

means for actuatingr the same at the type strokes, of a ribbon vibrating lever which is operativel)r connected to said universal bar by a fixed part on the universal bar engaging a fixed part of said vibrating lever.

24. In a typewriting machine, the combination with a universal bar and means for actuating the same at the type strokes, of a ribbon vibrating lever having gear segments at different distances from its fulcrum, 'cooperating gear segments on said universal bar, one ofthe parts being movable to place one or the other of the segments on the universal bar in mesh with the coperating segment on the vibrating lever.

25. In a typewriting machine` the combination with a universal bar and means for actuating the same at the type strokes, of a ribbon vibrator lever having gear segments at different distances from its fulcrum,`co operating gearN segments on said universal bar, said universal bar being'movable to place one or the other of its segments in mesh with the cooperating segment on the vibrator. or to plabe both its segments out of mesh With the lever segments.

26. In a typewriting machine, the combination with a main frame, and a platen carriage, of a casting removably secured'to the main frame and provided with a guide for the carriage, and am ribbon vibrator mounted on said castingf said casting being removable from the machine with the ribbon vibrator in place thereon.

27. In a typewriting machine, the combination with a main frame, and a platen carriage, of a casting removably secured to the main frame and provided witha guide for the carriage, a ribbon vibrator mounted on said casting, a universal bar mounted on said casting and operatively connected to said ribbon vibrator, and means mounted independently of said casting for actuating said universal bar, said casting being removable from the machine with the ribbon vibrator and universal bar in place thereon.

28. In a typewriting machine, the combination with a main frame, and a platen carriage, of a vcasting removably secured to the main frame and provided with a guide for the carriage, a ribbon vibratoi" mounted on said casting, said casting being removable from the machine with the ribbon vibrator in place thereon.

29. In a typewriting machine, the combination with a main frame, and a platen carriage. of a casting removably secured to the main frame and provided with a guide for the carriage, a ribbon vibrator mount ed on said casting. a universal bar mounted on said casting and operatively connected to said vibrator, and means mounted indcpendently of said casting for actuating said universal bar, said casting being removable from the machine with the vibrator and universal bar in place thereon.

30. In a type writing machine, the combination with a main frame, and a platen carriage. of a frame member removably secured to the main frame and provided with a guide for the carriage, a universal bar mounted on said member, and a device actuated by said universal bar also mounted on said member, said member being removable from the machine with the carriage, said universal ibar and said device in place thereon.

31. In a typewriting machine, the combination with ai'main frame, and a platen carriage, of a frame member removably secured to the main frame and provided with a guide for the carriage, a device to be actu\ ated at the type strokes mounted on said membeinsaid member being removable from the machine with the carriage and said device in place thereon, and actuating means for said device mounted independently of said member. v

32. In a typewriting machine, the combination with a main frame, a platen carriage,

u ribbon'vibmtor, n series of pivoted type part extending rearward] therefrom. and

hars, und :i supporting segmont for the type a pivotal support for sai bar. 10

hars, means for shifting said segment to Witness my hand this 14th day of 0cplmre the type bars in different printing re tober, 1914.

5 lotions to the platen, und means for actuat- EMMIT G. LATTA.

ing; the ribbon vibrator comprising a bar Witnesses: adapted to be moved by a. plurality of the LEONARD T. HAIGHT, typo bars und having a vibrator actuating ELMER E. STANTON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner et Patents, Washington, D. C.

Correction in Letters Patent No.1,1 60,912.

It is hereby certied that in Letters Patent, No. 1,160,912, granted November 16, 1915, upon the application of Emmit G. Lette, of Syracuse, New York, for an improvement in "Typo-Writing M nchlnes, :m error appears in the printed specition requiring correction as follows: Page 2, line 127, and 4page 3, line 12, for the reference-letters c /c read lc k; und that the said Letters Patent sho'uldlbe read lwith this. correction therein that the sume may conform to the record of the case in the Patent Office.

Signed and sealed this 28th day of March, A. D., 1916. i [SEAL-1 J. '1t NEWTON,

D Acting Commissioner of Patents. C1. 197157.