US892618A - Type-writing machine. - Google Patents

Description

N6. 893,618; PATENTBD JULY 7, 1903. M. w. POOL. TYPE WRITING MACHINE. I APPLfOATIUR' PILED'KAB-10r1905.

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w-hs TTQE'NEY PATENTED JULY 7, 1908. M. W. POOL.

TYPE WRITING MACHINE.

APPLICATION mum MAR. 10. 1905. 4 snmbsnm a.

LCINVENTDRI:

l Q HIS A 'r'TnHNfiY N .892 61 PATBNTED JULY 7 1908.

- 8 M. w. POOL.

TYPE WRITING MACHINE.

APPLICATION PILBD [A3- 10. 1905. 4 EIIBETB BHEET 4.

FIGJZ.

57 Fl G. 9b

WITNEESE'i INVENTEIR;

HIE ATTU NEY UNITE srirrns rArEN'r olnnion.

MORRIS W. POOL, OF NEW YORK, N. Y., ASSIGNOR TO THE MONAROH TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Patented J'u1y7, 1908.

No. 892,618. Specification of Letters Patent.

Application filed March 10, 1905. Serial. No. 249,416.

To all whom it may concern:

Be it known that I, Mourns W. Poet, citizen of the United States, and resident of the borough of Brooklyn, city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Whiting Machines, of

- which the following is a specification.

' written.

My invention relates more particularly to the ribbon feed mechanism of visible-writing machines or those machines wherein the writing is visible to the operator as it is In machines of this class employing a ribbon, the latter is usually controlled by a ribbon carrier or vibrator, which term, as used herein, comprehends any device for moving the ribbon automatically to cover the printing point and for affording a movement of the ribbon to uncover the printing point. In machines in which the ribbon vibrator has a single uniform throw, the ty )0 impressions will follow a straight line length wise of the ribbon. In my pending application, Serial No. 247,474 filed February 37, 1905, I have shown means to cause the type impressions to follow a plurality of predetermined paths lengthwise of the ribbon and parallel with each other, a contsruction which enables the inking surface to be more uniformly and thoroughly exhausted than is possible in constructions wherein the ribbon vibrator has-a single uniform throw.

One f the objects of my present invention is to improve the construction shown in my said pending application, by increasing the number of the parallel paths of the type impressions on the ribbon, so that a uniform anthconiplete exhaustion of the inking surface of a wider ribbon may be had.

Another object is to enable a ribbon having fields of different characteristics to be employed.

Another object is to provide a construction wherein the type impressions on each field of a ribbon of the last named kind will follow a plurality of paths parallel with each other and longitudinal of said field.

Another object is to enable the ribbon to be maintained quiescent and without the printing field during printin operation.

Other objects will subsequently appear.

To the above ends the invention resides in the features of construction, arrangements of parts and combinations of devices to be hereinafter fully explained and particularly pointed out in the claims.

In the accompanying drawin s, Figure 1 is a vertic al front to rear sectiona view taken about centrally, of one form of typewriting machine embodying my invention, parts of the machine being omitted. Fig. 2 is a fragmentary front elevation of the upper part of the machine. Fig. 3 is a fragmentary rear sectional view taken on a vertical plane near the rear of the. machine. Fig. 4 is a fragmentary top plan view of part of the ribbon mechanism. Fig. 5 is a side elevation showing parts of the ribbon mechanism, some of said parts being in different positions from those in which they appear in Fig. 1. Figs. 6, 7 and 8 are enlarged fragmentary top plan views, looked at from the rear, of parts of the ribbon mechanism.

Fig. 9 is an enlarged fragmentary top plan view, looked at from the rear, of certain parts of the ribbon mechanism in ositions corresponding to the positions of t io same parts indicated in Figs. 1, 3, 4, 6, 7, and 8. Fig. 10 is an enlarged fragmentary top plan view, looked at from the rear, of certain parts of the ribbon mechanism in positions corresponding to those indicated in Fig. 5. Fig. 11 is at. enlarged diagrammatic view showing the paths of the type impressions on the ribbon. Fi s. 12, 13 and 14 mediagrammatic views il ustrating the ribbon reversing mechanism.

The invention is shown as applied to a Monarch typewriting machine and it is therefore not considered necessary to refer other than briefly to the general structure shown in the drawin s.

Consider'in first ig. 1 to 11 inclusive, the frame 0 the machine is composed of a base 1, posts 2 and top plate 3, the posts bein secured to the base and the top plate' being fixed on the posts. Key lovers 4 are fulcrumed on a fulcrum plate 5 secured at the rear of the base, each key of which is connected by alink 10 with a type bar 11 which is one of a segmentally arranged series. The type bars may be pivoted on a curvedfulcrum wire 12 seated n a segmental type bar support 13, and may be guided in radial slots 14; or the said type bars may be provided with other kinds of pivots and supports as preferred. The type bars are designed to cooperate with the front face of a rotary platen 15 mounted in a carriage 16 which travels on balls 17 confined in grooves formed in the carria e bars or rails 18 and in oppositely grooved ars 19 fixed to stationary brackets .20. The carriage is provided with a feed rack 21' which normally meshes with a pinion 22, the latter being operatively connected with an escapement wheel 23 the teeth whereof are adapted to cooperate in a known manner with escapement dogs 24 mounted in a pivoted dog rocker The dog rocker or carrier 25 is provided with a horizontally disposed arm 26, the forward end of which is connected by a link 27 with an arm 28 projecting rearwardly from the middle of the universal bar pivot rod 29, the latter having pivots 30 secured. in tlre-sides of the base 1. Secured to the pivot rod 29 ,are side arms 31 which, together withtl'ie arm 28, serve to support a universal bar 32 extending from side toside of the machine beneath the series of key levers and the spacing levers (not shown) and designed to be swung downward about the pivots 30 whenever any of said levers are depressed during the operation of the machine. A spring drum 33, pivoted at 34 in a fixed bearing 35, is connected by a strap 36 with the carriage 16 and tends constantly to draw said carriage leftward across the top plate. Whenever the universal bar vis depressed the feed dogs 24, cooperating with the other escapement members in a known manner, permit the carriage to move one letter space to the left.

Ribbon spools 87 are oivotally mounted above the top plate of the machine one at each side thereof and forwardly of the platen. A ribbon 38 is wound upon said spools and passes from one to the other in front of the platen. Each ribbon spool is secured at the upper end of a vertical shaft 39 which roeled pinion 45.

tates in a fixed bearing 40, said shaft being provided at its lower end with a small beveled gear 41. Meshing with the beveled gear 41 is a beveled pinion 42 secured to the forward end of a' horizontally disposed shaft. 43 adapted to rotate in fixed bearings 44 and having fixedly secured to its rear end a bev- Adapted to cooperate with the pinion 45 is a drivingpinion 46 fixedly secured on a driving or power shaft 47 which extends from side to side of the machine beneath the'top plate and is slidably mounted in fixed bearings 48. The driving shaft 47 the spring drum 2323 through beveled pinions -49 and 50, the first named pinion being caused to rotate. with the spring drum when the latter draws the carriage leftward and. the pinum 50 being so connected with the driving or power shaft 47 that the latter is caused to rotate with said pinion but has endwise motion independently thereof. It will be understood that each ribbon spool is connected as above described ,with a beveled pinion 45, there being one of thelatter at each side of the machine as seen in Fig. 4. The beveled driving pinions 46 are so arranged upon the power shaft, 47 that only one of said driving pinions is engaged at a time with its associate pinion 45. To accomplish the alternate engagement of driving pinions 46 with their respective associate pinions 44 and thereby to cause-the ribbon to wind from one s 001 to the other and vice versa, the power s raft 47 is moved endwise in any known manner. The preferred means of causing this endwise movement of the driving shaft is that shown in the U. 5.

p ained in said patent, be shifted longitudinall-y in the direction of the arrow in Fig. 4 so as to cause the right-hand driving )inion 46 to engage with its pinion 45 and t e left hand driving pinion 46 to disengage from its associate pinion. The direction of the longitudinal feed of the ribbonis thereby reversed and the latter is caused to wind on the With the parts right hand spool and off the left hand spool.

It is to be understood, however, that I do not desire to be limited to the means for reversing the ribbon winding or longitudinal feed ing mechanism explained in said patent.

Any other automatic reversing means may be used with my invention, or the ribbon may be manually reversed as by pulling'out or pushing in the handles 51, secured to the ends of the driving or power shaft 47 and ordinarily employed for rapidly winding the ribbon. A pivoted, vibratory, spring-pressed detent 52, engaging with a circumferential depression 53 in the driving shaft 47, serves to retain the. latter in either of its working positions and has the additional function of assisting to shift said shaft longitudinally from one working position to the other.

Centrally of the machine, the ribbon is threaded through a ribbon vibrator or carrier 54 which is guided and supported in grooves or tracks formed in the upright arms 55 of a supporting bracket 56 secured to the frame of the machine by screws 57. The lower end of the vibrator 54 is bifurcated and is provided with a cross pin 5% with which engages the slotted forward arm 59 of a twopart operating lever. The arm 5.) terminates at the rear in a sleeve portion 60 (Fig.

- manner, as by a rivet 70.

6) which is perforated to receive a rock shaft 61 which serves as a fulcrum for the twopart lever. The rock shaft is provided at one end (the left end as viewed in Fig. 6) with an enlarged portion 62 which is formed with a cup-like depression 63, the pur )ose of which will be hereinafter explained. The rock shaft '61 is slidably and rotatively mounted in the bifurcated ear-like portions 64 of a bracket65 depending from and fixed to the under side of the top plate. The collar portion 60'of the forward arm 59 of the two-part operating lever is located between the bearing cars 64 and the only motion of which said lever arm is capable, is a rotary one communicated by the rock shaft 61 when the latter is caused to rotate in a manner presently to be described; A screw 66 is screwed into the collar portioi1'60, said screw entering a groove or depressioil 67 formed in the rock shaft 61 and 7 extending lengthwise of the latter. The screw and slot connection just described enables a rotary movement to be transmitted from the rock shaft to the lever arm 59, while at the same. time said rock shaft is capable of longitudinal movement independently of said lever arm. The perforated collar portion 68 of the rear arm 69 of the two-part lever is fixedly secured on the other end of the rock shaft 61 (the right hand end as viewed in Fig. 6) in any suitable The rear arm 61 of the two-part lever is formed with two slots 71 and 72. A link or actuating member 73 is pivoted at 74 to the right hand side (Fig. 3) of the arm 28 of the universal bar frame, and the upper end ofsaid link is revided with-,a projecting stud 75 whiei is adapted to engage with the slot 71 in the lever arm 69 at the right hand side of the latter as viewed in Figs. 6, 7 and S. A second link or actuating member 76 is pivoted at 74 to the arm 28 at the opposite side of thejlatter from the link 73, and said link 76 is provided at its upper end-with a projecting stud 77 which is adapted to engage the slot 7 2 in the arm 6!) 'from the left hand side of the latter as viewed in 3, 6, 7 and S. A draw spring 78 has its ends secured to the links 7 3 at the rear end of the forward slot 72.

and 76 and tends constantly, as best seen in Fig. l, to draw said links together, being adapted to maintain the stud 75 at the forward end of therear slot 71 and the stud 77 It will be noted that when thus positioned the forward edge of the link 73 is a short distance behind the driving shaft 47 while the rear edge of the link 76 is a short distance in front of said shaft.

As best. appears in Figs. 3, 6, 7 and S the links- 73 and 76 are oppositely off-set sidewise, so as to stand some distance apart transversely. The transverse relation of the two links is a fixed one, this result being accomplished by means of a right-angled guide bracket 79. The upright arm of the guide bracket is secured to the bearing lug 65 by: headed screws 80; and the rearwardly extending horizontal portion of the bracket 79 is formed with guide slots 81 and 82, the slot 81 receiving the link 7 3 and the slot 82 the link 76. The guide slots permit vertical and fore and aft play of said links but do not permit crosswise motion of said links confining them each to a single operating plane and thereby maintaining the studs 75 and 77 a fixed distance apart.

F ixedly mounted on the driving or power shaft 47 is a link controller or switch 83 which, as herein shown, is cylindro-coiiical-in shape, comprising a circular face 84 concentric with the shaft 47 and a conical or tapered portion 85. The smaller end of the conical portion 85 terminates a short distance from the driving shaft 47. When the. parts are arranged as shown in Figs. 4, 6, 7, 8 and 9, the small end or top of the cone-like portion 85 is, when viewed from the top and rear of the machine, slightly to the right of the link 73 and somewhat further to the right of the link 76.

Seated in the cup-like depression 63 in the rock shaft 61 is the inner end of a slide rod 86, the part of said slide within the cu )lll(0 depression being formed with a circumferential groove 87. A pin 88 is driven through the enlarged portion 62 of the rock shaft so as to engage the circumferential groove in the slide rod 86, as best appears in Figs. 3 and 6.v This construction enables the rock shaft to be drawn endwise by the slide rod, while at the same time, said rock shaft may be rotated without affecting said slide rod. The slide rod 86 extends outwardly to the side of the machine passing through and bearing in one of the bearing lugs 44 and terminating extcriorly of the machine in a knurled finger button 89. Near its outer end the top of the slide. rod is formed with a series of notches or depressions 90, 91 and 92. A locking spring or check 93 is secured to the under side of the top plate by a headed screw 94, and said spring is adapted to engage the notches in the slide rod and thereby to retain the latter in any one of a plurality of predetermined positions.

The ribbon 38 shown in the drawings is one having a plurality of fields of different characteristics, being made up of two longitudinal stripes or fields aand y. Let it be assumed for purposes of illustration that these stri )es :1: and g are colored respectively black and red; although it is to be understood that they may be colored in any other way or may instead differ in any other respect.

The operation of the parts will first be considered when they are positioned as indicated in Figs. 3, 4, 6 and 9, and it will be assumed for the time being that the positions indislot 71 in the rear arm 69 of the two-part op erating lever. The movements of the link 76 will therefore be disregarded for the time being. As the link 73 moves downward it draws the arm 69 downward with it and the latter being fixedly secured to the rock shaft 61, causes said rock shaft to rotate in its bearings 64 and thereby to swin the forward arm 59 upward about the roc: shaft. As the forward arm 59 of the two-part lever swings upward, it moves the ribbon vibrator 54 up until the ribbon covers the printing oint. Wherein in the claims it is stated 7 i that the vibrator is moved or thrown to the printing point, I desire to be understood as meaning that the vibrator is moved so as to cause the ribbon to cover the printing point on the platen. With the parts arranged as described the throw of theribbon vibrator is a constant one and the mechanism is so proportioned andadjusted that the type impressions will follow a path lengthwise of the ribbon somewhat'above its center and represented by the dotted linea (Fig. 11). The types will ordinarily contact with the ribbon along the path it until the right hand ribbon spool is empty. When the ribbon has been com letely unwound from the right hand spoo the power shaft 47 is shifted longitudinally in the direction of the arrow in Fig. 4 in a manner heretofore referred to, until the right hand beveled gears 46 and 45 are in mesh and the corresponding left hand gears are out of mesh. The longitudinal feed of the ribbon is thereby reversed. and the said ribbon is caused to wind on the. right hand s 001 and off the left hand spool during the su sequent operation of the machine. As the shaft47 moves longitudinally as just described, the

link controller or switch 83 moves with it and the cone portion 85 will contact with the front edge of the link 73 and will swing said link rearwardly about its pivot 74 against the pull of the draw spring 78.

The parts are so proportioned and arranged that when the switch has reached the limit of its movement in the direction of the arrows (Figs. 4 and 9) the link 73 will have been cammed or swung rearward until it engages with the circular face 84 of the switch as indicated in Figs. 5 and 10. It will be noted that the rearward swing of the link 73 moves the stud 75 to the rear end of the slot 71 and further away from the rock shaft or fulcrum of the two-paart operating lever, the result being that w en said lever is swung upward during a printing operation it will carry the ribbon to a less height than when the stud 73 is at the forward end of the slot 71'. As the rinting keys are operated the switch 83 wil rotate with the power shaft 47 and the circular face 84 will turn in contact with the forward edge of the actuating member or link 73. The stud Z5 will thereby be maintained at the rear of the slot 71 and the forward arm of the operating lever will be swung upward at printing o eration so as to present a portion of the rib on between the ath a and the upper edge of the't es. The atter will follow a straight line longitudinally of the ribbon and parallel with and above the path a. The upper path is represented by the letter I) (Fig. 11). The t e im ressions will follow the path 1; until t e ri bon has been completely unwound from the left hand ribbon spool after which. the power shaft 47 will be moved back longitudinally to the firstdescribed position with the left hand pinions 46 and 45 in engagement, and the longitudinal feed of the ribbon will be again reversed. The switch 83 returns with the power shaft and as it does so, the draw spring 78 will swing the link 73 forwardly about its ivot 74 until said link reaches the positions ow in Figs. 3, 4, 6, 9 and 1.

With the transverse relations of the actuating links and the operating lever unof the slide rod 86 is engaged with the spring check 93.

Sometimes it is desirable, as in preparing that for the all black' position the notch 90 stencils for niimeograph work, to cause the types to strike directly against the stencil orot 1 er )aper without the inter ositioning of the ri bon between them. Xccordingly I have provided mechanism which prevents either of the links from actuating the operating lever, so that the latter will remain quiescent in normal position during the o eration of the rinting keys. To accomplish this result, t e finger piece 89 is pulled outward until the notch 90 is disengaged from the locking spring or check 93 and the second notch 91 engages with said locking spring. As the slide rod 86 is drawn outward it moves with it the rock shaft 61 .which slides longitudinally in its bearings from the position indicated in F ig. 6 to that indicated in Fig. 7. The rear arm 69 of the twoart lever which is fixed to the end of the roc shaft is drawn with the, latter from the position indicated in Fig. 6 to that indicated in Fig. 7. It will be noted from an inspection of said figures that this movement of the lever arm 69 disenseams gages it from the stud 75 and causes it to take up a neutral position, between the studs 75 and 77 and disengaged from said studs. Since neither link is engaged with the operating lever, the ribbon, during the operation of the machine, will reinainouiescent in normal position, and will not be interosed between the types and the paper.

If it bedesired to print only on the red stripe y, the slide rod 86 is drawn still further outward or to the left viewed in Fig. 3 until the second notch 91 disengages from the locking sprfng 93 and the third notch 92 engages with said spring. This further outiivard movement is transmitted to the rock shaft 61 ant, the lever arm 69 and the latter is moved from the position indicated in Fig. 7 to that indicated in Fig. 8 wherein it will be I noted that the stud 77 of the link 76 is in engagement with the slot 72 in the lever arm 69. For purposes ot illustration the positions of the parts indicated in Fig. 1 may for the time being be considered as correspond ing to the positions indicated in Fig. 8. From an inspection ol said figures it will be observed that the stud 77 mainti'iined at the rear of the forward slot 72 when the driving shaft 47 is positioned as indicated in Figs.

A, 8 and 9.

The mechanism is so proportioned and adjusted that the type impressions will follow a path lengthwise of the rib 'bon and along the upper portion of the red stripe y, said path beinq indicated by the dotted line 0 (Fig. 11). When the ribbon has been coin )leteiy unwound from the right hand spoolthe power shaft 47, as heretofore explained, will be shifted longitudinally in the direction of the arrow (Figs. 4 and 9), thereby reversing the longitudinal feed of the ribbon. The switch 83 participating in the movement of the driving shaft 47 will change its relation with the link 76 from that .indicated in Fig. 9 to that indicated in Fig. 10. It will be noted from an inspection of the last named figure, that the link 76 has been.

- cammed forward slightly about its pivot 74 and that part of its rear edge is in contact with the cone ortion S5 of the switch, the

arts .being maintained in this position during subsequent printing operations by the draw spring 78. For purposes of illustration, Fig. 5 may now be considered as corresponding with this last described relation of the'parts. It will be noted from an inspection of said figure that the stud 77 has bee'n'nioved to, the forward end of the slot 72 nearer to the rock shaft or fulcrum 61. At

printing 0 eration the forward arm 59 of the twoart everwill throw the vibrator upw ar so as to present the lower portion of the red stripe y of the ribbon at the printing point. The throw of the vibrator being constant, the path of the type im ressions will be in a straight line longitudina of the ribbon and parallel with the path 0 as well as with paths a and I). The lowermost path is indicated by the reference d (Fig. 11). The ty e impressions will follow the path (Z until t ie ribbon has been completely unwound from the lcfth and ribbon spool, after which, as hitherto explained, the driving shaft 47 will be moved back longitudinally to the first described position with theleft hand pinions 46 and 45 in engagcnie' t, and the longitudinal feed of the ribbon will be again reversed. The switch 83 returns with the driving shaft, and as it does so the draw spring 78 will swing the link 76 rcarwardly about its ivot 74 until said link reaches the position sliown in l, 8 and h I As long as the slide rod 86 is maintained with its notch 92 in engagement with the locking spring 93 the transverse relations of the lever arm 69 and the links 73 and 76 will be maintained as indicated in Fig. 8. Consequently the round of operations just described will be repeated indefinitely and the type impressions will follow a plurality of paths parallel with each other and confined to the red stripe y of the ribbon. If it be desired to return to the neutral or inactive position the slide rod 86 is pushed in until its second notch S}! is engaged with the locking s )ring 93. This return moven'ient of the slide rod causes the lever arm 69 to be returned to the position. indicated in Fig. 7, wherein neither of the actuating members or links is connected with said lever arm. If it be desired to return to the all black position (Fig. 6) the slide rod 86 is pushed inward until its notch engages with the locking spring 93, which movement of the slide rod causes the lever arm 69 to reengage with the link 73 as indicated in Fig. 6.

While I have described the various operations of the mechanism in natural sequence it is to be understood that the devices may be manipulated in. any desired order.

In order not to complicate the descri tion of the invention proper, I have not hit ierto described the means for auton'iatically reversing the longitudinal feed of the ribbon. The preferred means. as heretofore stated, is explained in detail in the patent to F clbel & Gabrielson, No. 703,339, and it is thought suf- 'l'icient at this time to describe the reversing mechanism briefly, reference being had to the said patent for a fuller description. Referring now to Figs. 12, 13 and 14 of the draw ings of the presentapplication, 95 designates an elbow lever pivoted to the under side of the right-hand ribbon spool 37, and for the greater part of the time retained in the position indicated in Fig. 13 by folds of the ribbon 38, which, it will be noted from an inspection of Fig. 12, is winding oil the ri hthand spool and on the left-hand spool. "11- til the right-hand spool is emptied the horizontal arm of the elbow lever 95 serves to retain in non-working position a cam plate 96 slidably secured to the under side of the ribbon spool. When the ribbon has been completely unwound from the spool it releases the upright arm of the elbow lever 95, thereby permitting the cam plate 96 to slide vertically downward to the position indicated in Fig. 14, in which position the outer cam face 97 is adapted to engage an upright pin 98 secured at one end of a horizontal spring mounted lever 99. The other end of the lever 99 normally contacts with and holds in rearmost position the upright arm 100 of a spring mounted slide rod 101, the rear end whereof is bent and terminates in a forwardly extending trip pin 102. Normally the trip pin 102 is opposite to, but out of engagement with, a worm 103 fixedly secured to the driving shaft 47. After the cam plate 96 drops, the further turning of the ribbon s ool ceases, the cam surface 97 acting upon t e in 98 to cam the horizontal lever 99 against t e pressure of its spring 99*. to the position indicated in Fig. 12, thereby allowing the slide rod 101 to be moved forward by its spring 101 until the trip pin 102 engages with the worm 103. After this engagement takes place, the driving shaft 47, as it is rotated during the operation of the machine, will be wormed along in the direction of the arrow in Fig. 12, until the right-hand driving pinion 46 meshes with its associate pinion 45 and the corresponding left-hand pinions disengage, thereby reverscam plate 96 is moved upward it releases the mg the lo n itudinal feed of the ribbon. As the ribbon egins to wind back on the righthand s 001 it will press the upri ht arm of the -.elbow ever 95 against the spoo core, restoring said lever, and with it the cam plate 96, to the position indicated in Fig. 13. When the horizontal lever-99, permitting the latter to again act upon the slide rod 101 to push said slide rod rearwardly and restore the trip in 102 to non-working position, it being un erstood that the s ring 99 is stronger than the spring 101*. e left-hand ribbonspool is provided with a similar train of mechanism which will operate in a similar manner when the said spool is emptied of the ribbon.

It will be noted that by'my invention I have provided means for throwing the ribbon vibrator any one of a plurality of predetermined distances so that a type Wlll strike at any one of a plurality of predetermined points in the width of the ribbon, Consequently the type impressions will follow a path first along one ortion of the rib bon throughout its lengtli or until the longitudinal feed of the ribbon is reversed and then the course of the type impressions will be automatically changed to a path which will be parallel with and to one side of the first path so that the return track will not correspond with the first track. Further more I have provided means, when a ribbon seems having a plurality of fields of different characteristics is in use, to confine the 0 erations just detailed to any one of the fiel s of said ribbon that may be desired. The result is that the inked surface of each of the ribbon fields is uniformly and thoroughly exhausted by my invention wherein are employed dupleX widthwise ribbon-shifting means, one of said duplex means as herein shown being a switching member'for positioning the links longitudinally of the operating lever and the other of said means being operated to cause one or another of the links to actuate the operatin lever. I

l/Vhile have illustrated a two-color ribbon in connection with the invention it is to be understood that a one-color ribbon or a rib bon having uniform characteristics throughout may be substituted in a known manner for the two-color ribbon illustrated, and that the inked surface of said uniform ribbon may be exhausted in the same manner that of the two-color ribbon.

The Monarch machine, to which the inven tion is shown applied, shifts the type bar support in order to change case, so that the relation between the printing point on the platen and the ribbon vibrator is not altered when a' be limited to this particular construction, as the invention may not only be employed with such a construction or with a construction whlch mamtams m any other way a fixed relation between the platen and therib bon vibrator when the case is changed, but also with constructions wherein the relations between the printing point and the vibrator is altered whenthe case is changed. Furthermore, while the drawings illustrate one construction of mechanism for automatically moving the ribbon to cover the printing oint when a printing key is depressed an for thereafter moving said ribbon to uncover the printing point, it is to be understood that an other means of accomplishing this resu t may be/employe d with the invention.

I prefer to employ a two-part operating lever, one part of which is shiftable relatively to the other tively, said s iftable part or operating arm also altering its transverse relations with a plurality of actuating means, which latter are themselves maintained in a fixed transverse relation, but other means of accomplishing the results obtained may be employed.

Various other changes may be effected in the construction, arrangement and opera mg from the spirit and scope of the invention.

art transverselv but not rotawidthwise, one of said duplex means being operatively controlled by the ribbon revers- 1 ing means.

2. In a visible writing machine, the combination of a ribbon normally removed from the printing point; means for feeding the ribbon longitudinally; means for reversing the.

longitudinal l'eed of the ribbon; and duplex means for shifting the ribbon widthwise; one of said duplex means being operativcly controlled by the ribbon reversing means.

3. In a visible writing machine, the combination of a ribbon; a ribbon winding mechanism; means 'l'or reversing the ribbon windingmeclmnism; means l'or holding the ribbon normally away from the printing point;

means "for moving the ribbon antomaticallyv to cover the printing point; and duplex means for altering the extent of said auto matic movement, one of said duplex means being operated by the ribbon reversing means and the other of said duplex means being independently hand operated.

4. in a visible writing machine, the combination ol' a pair of ribbon spools; winding means there'l'or; means for reversing said winding means; a ribbon carrier normally away from the printing point; means for moving said carrierto and from the printing point; and a plurality of means. for altering the extent of movement of said carrier, one of said last named means being operatively controlled by the ribbon reversing means.

5. In a visible writing machine, the combination of a pair of ribbon spools; winding means therefor; means for reversing said winding means; a ribbon carrier normally away from the printing point; means for moving said carrier to and from the printing point; and duplex means for altering the extent ol movement of said carrier, one of said duplex means being. operatively controlled by the ribbon reversing means and the other of said duplex means being operated independently of said ribbon reversing means.

6. In a typewriting machine, the combination of a pair of ribbpn spools arranged one at either side of the )rinting point; winding ,means for said spoo s; means-for reversing said winding means: a ribbon carrier arranged between the .spools and normally away from the printing point; means for moving the carrier independently of the spools to and from the printing point; and a plurality ol means for altering the extent of movement. of the carrier, one: of said last named means being operated by the ribbon reversing means, and the other of said means being operated independently of said ribbon reversing means. i

7. In a visible writing machine, the combination of a pair of ribbon spools arranged one at either side of the rinting point; winding means for said spoo s; means for reversing said winding means; a ribbon carrier arranged between the spools and normally away from the printing point; means for throwing the carrier upward any one of a plurality of predetermined distances so as to cover the printing point during printing operation; and a plurality of means for altering the throw of said'carrier from one to another of said predetermined distances, one of said last named means being automatically operated and another of said last named means being independently hand operated.

b. In a visible writing machine, the combination ol a carriage; a series of printing keys; at letter-spacing mechanism for said carriage; a universal bar operated by said printing keys; a ribbon; a ribbon winding mechanism; means for reversing said ribbon winding mechanism; means actuated by said universal bar for moving the ribbon to and from the printing point; and a plurality of means connected with said riblion winding mechan ism for altering the to and fro movement of the ribbon, one of said plurality ol means being also connected with and operable by said reversing means and another ol said plurality of means being indepemlently hand operated.

9. In a typewriting machine, the combina tion of a ribbon vibrator; a lever for operat ing said vibrator; a pair of links, each operable upon said lever at one or another of a plurality of predetcrmimal distances from its fulcrum; means for actuating said links; means for automatically moving said links to cause them to engage with said lever at one or another of the predetermincd points; and means tor-alternatively connecting said links with said operating lever.

10. In a tv )ewriting machine, the combi nation of a rib )OD carrier; an operating lever therefor; a pair of links each operable upon said lever at one or another of a plurality of predetermined points; 'means for actuating said links; means [or alternatively maintaining said links in engagement with the operating lever; and means for z'rutomatically moving said links to change the points of engagcment with said lever.

11. In a typewriting machine, the combination of a ribbon carrier; an operating lcvertherefor; a pair of links each operable upon said lever at one or another of a plurality of predetermined points; means for actuating said links; means for shifting said lever to cause it to engage altornativcly with said links; and means for automatically-moving said links to change the points ol engagement with said lever.

12. In a'typewriting machine, the combination of a ribbon carrier, a two-part operating lever therefor; a pair of links, each operable upon said lever at one or another of a plurality of predetermined points; means for actuating said links means for moving one part of said lever relatively to the other so as to cause said lever to engage alternatively with said links; and means for automatically moving said links to change the points of engagement with said lever.-

13. In a typewriting machine, the combination of a ribbon carrier; a two part operating lever therefor; a pair of links each operable on said lever at one or another of a plurality of predetermined points; means for actuating said links; hand actuated ineans for moving one part of said lever so as to cause it to engage alternatively with said links; and means for automatically moving said links to change the points of engagement with said lever.

14. In a typewriting machine, the combination of a ribbon carrier a rock shaft; a two-armed operating-lever, said rock shaft being fixedly-engaged with one arm and slidably engaged with the other-arm of said le-- ver; a pair of links, each operable on said lever atone or anotlier of a tplurality of predetermined points; means or actuating said links; means for moving said rock shaft endwise to cause said lever to engage alternatively with said links; and means for automatically moving said links to change the points of engagement with said lever.

15. In a typewriting machine, the combination of a ribbon carrier; a rock shaft; a two-armed operating lever, said rock shaft being fixedly engaged with one arm and slidably engaged with the other arm of said lever; a pair of links, each operable on said lever at one or another of a plurality of predetermined points; means for actuating said links; a hand actuated slide rod'for moving said rock shaftendwise to cause the o erating lever to engage alternatively wit said links; and means for automatically moving said links to changetheir points of engagement with said levers.

16. In a typew'riting machine, the cornbination of a ribbon vibrator; a single lever for operating said vibrator; a pair of links for actuating said lever; means for maintaining each of said links in a fixed relation with said lever; means for automatically altering said fixed relations and means for actuating said links. 7 Y

17. Ina typewriting machine, the combination of a ribbon vibrator; a single lever for operating said vibrator; a plurality of means each operative upon said lever at one or another of, a plurality of predetermined distances from its fulcrum; and automatic means for moving said first named means to change their points of engagement with said ably engagedv with the other arm of saidlever a pair of links, each operable on said lever at one or another 'of a plurality of predetermined oints; means for actuating said link; a hen actuated slide rod for moving said rock shaft endwise to cause the operating lever to engage alternatively with said links; a ribbon driving shaft; a link controller fixed to said shaft; and neans for 'moving 'said shaft endwise to reverse the ribbon.

19. In a typewriting machine, the combination of a ribbon vibrator; a singleilever for operating the same; a key actuated universal bar; a pair of links connected with said universalbar and operative upon said lever to throw said vibrator any one of a plurality of different predetermined distances; automatic means for altering the predetermined distance to which the .vibrator is thrown; and other hand actuated means for also altering said predetermined distance.

20. In a typewri-ting machine, the com-' each provided with a pin adapted to engage a slot in said operating lever; means forautO- matically actuating either of said links longitudinally of said lever to' one or another of a plurality of predetermined positions in engagement with said lever; means for actuating said lever transversely of said links for the purpose of alternatively engaging the latter; and means for actuating said links.

22. In a typewriting machine, the combination of a ribbon vibrator; a slotted lever for operating said vibrator; a pair of links each provided with a pin adapted to engage a slot in said lever; means for automatically actuating either of said links longitudinally of said lever to one or another of a plurality of predetermined positions in engagement with said lever; means for maintaining said links in a fixed transverse relation;- means for moving said lever transversely of said links to efiect alternative. engagement with thelatter; and means for actuating saidlinks.-

23. In a typewriting machine the combination of a ribbon vibrator; a lever for operating said vibrator; a pair of links adapted to enacts actuate said lever; means for automatically movin said links longitudinally of said lever to pre etermined positions; means for maintaini each of said links in a fixed plane of operation means for moving said lever transve'rsely of said links to effect an alternative engagement with the latter; and means for actuating said links; I

24. Ina typewriting machine, the combination of' a ribbon vibrator; a lever for operating said vibrator a pair of links adapted to actuate said lever; means for automatically movi -said links longitudinally cl said lever to pre etermined positions; means for main-- taining each of said links in a single fixed plane of operation; hand actuated means operative exteriorly of the machine for moving saidlever transversely of said links so as to :vrfiage with one or another of the latter at ;and means for actuating said links.

a In a typcw-riting machine, the combi nation of printing inst-rumentalities ;v ribbon; me'ans for feeding said ribbon longitu-v dinally; a ribbon-vibrator, means for throwing' said vibrator any enact a plurality of predetermined distances soas to' cause the types to'follow any one of a number of redetermined, distinct paths lon 'tudina of said ribbon; and dual means for c ranging the throw of said vibrator directly from one to another of said predetermined distances, one of said dual means being'automatically operated 'and another independently hand operated. A i

26. In a typewriting machine, the combination .of printin instrumentalities; a rib-' bon,-ribbon win ing mechanism; a ribbon vibrator; an operating lever therefor; two

actuating means adapted toact on said lever atone or another of a plurality of predetermined points so as to cause the ty es to follow one or another of a plurality 0 strai 'ht, parallel and distinct paths longitudinal of said ribbon; means for automatically shifting either of said actuatim means from one to 4 another predetermined points; and inde- 'means operative upon both said links to pendent hand actuated means operative ex-,,

teriorl of the machine for effecting engagement actuating means.

27. In a typewriting machine, the combination of printing instrumentalities; a ribbon; means for feeding said ribbon longitudinally; a ribbon vibrator an operating lever; apair of actuating links; automatic change t eir relation with said lever; and hand actuated means operative upon saio lever to change its relation with said. links, the combination of said two means causing the printing types to follow any of a plurality cl predetermined distinct paths longitudinal oi the ribbon and parallel with each other.

i 28. In a ty ewriting machine, the combination of a ril bon vibrator; an operating in tween said lever and either ol' said' ver therefor; a plurality of actuating means each adapted to act on said lever at one or another of a definite number of predetermined separate points; means for autoniatically shifting said actuating. means fromone to another ot said predetermined points;

and means for shifting said operating lever to. engage alternatively with said actuating means.

29. in a typewriting machine, the combination of a ribbon vibrator; an operating lever therefor; a plurality of actuating means,

each. adaptedfltoact on said lever at one or another of a definite number of predeter-- mined points; a shifting DiCil'llJQl adapted toshift said actuating mirans au.toniatically from point to point; and inde )endcnt hand actuated means for shittin sa-i operating lever to engage alternatively with said actuating means.

30; in atyoewriting machine, thecombi adapted taco-act with said lever in a plurality of predetermined fixed relations; and

dual means for changing from one to another of the predetermined fixed relations between the co-acting parts.

' 81. In a typewriting machine, the combination of a ribbon vibrator; an operating lc, ver therefor; a plurality of actuating means nation of a ribbon vibrator; an operating lever therefor; a plurality of actuating means} adapted to co-act with said lever in a plurality' of predetermined, fixed relations; and

dual means for changing from one to an other of the predetermined fixed relations between the co-acting parts, one of saiddual means being automatically operated and the other of said means being independentlyhand'o erated. I

32. n a typewritiiig machine, the combination of a ribbon vibrator; a lever for oper atin said vibrator;a pair of links, each 0 erab l plurality of predetermined distances from its lulcrum; means for actuating said links; means for automatically inoving said links to cause them to engage with said lever at one or another of the predetermined points;

means for alternatively connecting said links with said 0 eratin lever; and means for rendering bot said links inoperable on said lever.

In a ty ewriting machine, the combination of a rib on carrier; an operating lever thereioijn pair of links, each operable on e upon said lever at one or another o a 1 nation of a ribbon carrier; an operatin lever therefor; a pair of links, each opera le on said lever at one or another of a plurality of predetermined points; means for actuating said links; means for shifting said lever to cause it to engage alternatively with said links and for causing it to. be disengaged simultaneously from both said links; and means for automatically moving said links to change their points of engagement with said lever.

35. In a typewriting machine, the combination of a ribbon carrier; a two-part operatin lever therefor; a pair of links, each operabIe upon said lever at one or another of a plurality of predetermined points; means for actuating said links; means for moving one part of said lever relatively to the other so as to cause said lever to engage alternatively with said links or to disengage simultaneously from both said links; and means for automatically moving said links to change their points of engagement with said lever.

36. In a ty ewriting machine, the combination of a rib on carrier; means for feeding the ribbon longitudinally; means for auto- .matically reversing the longitudinal feed of the ribbon; and duplex means for shifting the ribbon widthwise, to write on different portions of its width, one of said duplex means being automatic and operatively controlled by the ribbon reversing means.

37. In a visible writing machine, the combination of aribbon; an automatic ribbon vibrator controlling said ribbon; means for feeding the ribbon longitudinally; means for reversing the longitudinal feed of the ribbon; and duplex means for shifting the ribbon widthwise, each to a different predetermined extent for presenting diflerent fields of the ribbon to the action of the types, and one of said duplex means being operatively con trolled by the ribbon reversing means. I

38. In a typewriting machine, the combination of a platen; a vibratory ribbon carrier which normally maintains the ribbon removedfrom the printing point on the platen; an operating arm connected with said ribbon carrier; a plurality of means-for actuating said arm; and means for enabling each of said plurality of means to be set and maintained in one or anQth'er of a lurality of predetermined relations with said op erating arm, whereby said ribbon carrier may be thrown one or another of a plurality of extents by each of said plurality of means.

39. In a typewriting machine, the combination of a platen; a vibratory ribbon carrier which normally maintains thev ribbon re moved from the printing point on the platen; a pivotally mounted operating arm connected with the vibrator; a lurality of means for actuating said arm; and a plurality of means for changing the relations between said arm and said first recited plurality of means.

40. In a typewriting machine, the combination of types, a ribbon provided with 21. p111 ralit of ion itudinal stri es a vibrator y g Y y ribbon carrier which norma ly maintains the ribbon at anunvarying distance from the printing point on the platen, means for throwing said carrier to and from the printing oint; and means for altering the extent of tie throw of the carrier to enable the types to cooperate with the ribbon at one or another of a plurality of points widthwise of one or another of the plurality of stripes on 'the ribbon.

41. In a typewriting machine rovided with a ribbonnormally removed 0m the printing point and having a plurality of fields of different characteristics, the combination of a platen; types; means for feeding the ribbon lengthwise; means for throwing the ribbon to cause the types. to follow parallel paths back and forth along ,one of said ribbon fields; and means for at will altering the ribbon fieldwith which the types cooperate.

Signed at the boroughof Manhattan, city of New York, in the county of New York, and State of New York, this 9th day of March, A. D. 1905.

MORRIS POOL.

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