US678473A

US678473A - Type-writing machine.

Info

Publication number: US678473A
Application number: US70364399A
Authority: US
Inventors: Byron A Brooks
Original assignee: UNION TYPEWRITER CO
Current assignee: UNION TYPEWRITER CO
Priority date: 1899-01-28
Filing date: 1899-01-28
Publication date: 1901-07-16
Anticipated expiration: 1918-07-16

Description

8. A, BROOKS. .TYPE WRITING MACHINE.

(Application dud .Tm'fl, 1599.)

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(No Model.)

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- Patented luly l6, 190i. 5. A. anonxs. TYPE, WRITING MACHINE.

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I B. A. BROOKS.

TYPE WRITING MACHINE.

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I TYPE WRITING MACHINE.

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UNITED .1 STATES PATENT @rrroni.

-BYRON A. BROOKS, OF BROOKLYN, NEWYORK, AssrGNOR To THE UNION TYPEWRITER COMPANY, OF

JERSEY CITY, NEW JERSEY.

'TYPE-WRITPNG MIAYCHIN E.

SPECIFICATION forming part of Letters Patent No. 678,473, dated July 16, 1901. Application liled January 28, 1899. Serial No. 703,643? (No model.)

To all whom it may concern:

Be it known that I, BYRON A. BROOKS, a. citizen of the United States, and a resident of the borough of Brooklyn, city of New York,

5 in the county of Kings and State of New York,

have invented certain new and useful Im-' provements in'Type-Writing Machines, of which the following is a specification.

The present invention relates primarily to to ribbon-operatin g mechanism for type-writing machines, more particularly that class of machines commonly known as visible-writing machines.

Ono object of the invention is to vibrate the I 5 central portion of the ribbon to and from the printing-point.

Another object is to control the longitudinal movement of the inking-ribbon by or from the carriage of the machine.

Another object is to move the ribbon 1ongitudinally by power independent of the carriage-driving spring and of the finger-pressure of the Operator.

Another object is to provide means for man- 25 ually reversing the longitudinal travel of the ribbon; and another object is to have the ribbon-spools in plain view of the operator, so that the ends of the ribbon may be readily seen as they unwind from the spools and the ribbon be reversed promptly, thus avoiding wearing holes in the same, and other objects,

'as will hereinafter more fullyappear.

To these ends the invention includes features of construction and combinations of de- 3 vices hereinafter described, and more particularly pointed out in the appended claims.

The preferred form Of the invention is illustrated in the accompanying dra\vings,'forming part'of this specification, in which- Figure 1 is a central vertical longitudinal sectional View of'a type-writing machine embodying my improvements. Fig. 2 is a transverse Verticalsectional view upon the planes indicated in Fig. 1' by the lines X X and look- 5 ing in the direction of the arrows thereat.

Fig. 3 is, a diagrammatic View showing the normalpo sition of parts in'- full lines, as'in lower-case Wo'rk,'and the shifted position of parts, as. in upper-case work, in dotted lines;

0 Fi 4- isa ers ective'view showin art of D D 1 the mechanism for moving the ribbon endwise.v

Fig. 5 is a perspective view, partly broken away, of a sleeve and part of a clutch. Fig. 6 is a perspective view of the ribbon-reversing mechanism, and Fig. 7 is a perspective 55 view of the'vibrator for carrying the ribbon to and from the printing-point.

ends to cause them to move together in unison; 7, a platen-carriage comprising ends 8, front bar 9, and rear channel-bar 10, (invert- 70 ed;) 11, rollers pivotally connected with the bars 9 and 10 and bearing upon the tracks Or ways 4; 12, a platen supported by shaft 13,

journaled in the carriage ends 8; 14, a rackbar secured to the carriage 7 and making an 75 angle with the vertical; 15, a broad pinion with which the rackbar is engaged; 16,ashaft carrying the pinion and journaled in an ob- ;lique bearing 17, supported by arms 18, projecting upwardly and forwardly of the ma 8o chine from the rear top of the base 1; 19, a

ratchet-wheel on the shaftlo and connected therewith by a pawl and ratchet in a casing 21, a holding and 22 a feeding dog carried by a vibratory arm 23; 24, a shaft jour- 85 naled in brackets at the rear of the base 1 and carrying the arm 23; 25, a spring fast at oneend to the shaft 2 L and hearing at its other end under the top of the base 1, the tension of the spring tending to hold the arm 23 9o upwardly and rearwardly; 26, a link pivoted to and projecting downwardly from the arm 23 and pivotally connected with an arm 27, H projecting upwardly from thefuniversalbar L 28; 29, arms carrying the universal bar 28 5 and projecting forwardlyfroma pivot-bar 30;

31, overhanging arms for operating the universal bar-28 and connecting the universal bar with key-levers 32; 33, springs connected with the key-levers 32 and with arms 34: on '10.) shaft or rod35 for holding the key-levers with their notched ends against. the pivot-bar 30 and a cushioned stop-bar 36, the rod 35 being suitably fixed to the frame of the machine; 37, an arm projecting rearwardly from one of the shafts 3 and pivotally connected with a rod 38, which in turn is connected with a shift-key lever 39.

The foregoing devices are or may be the same or substantially the same as in another application for Letters Patent, filed January 28, 1899, Serial No. 703,642, or may be replaced by any other devices suitable for the same purposes.

The ribbon mechanism forming the subjectmatter of this application will now be described.

The ribbon 40 has its ends fastened to two spools 41 42, these spools being located in front of the platen 12 and at about the level of the axis thereof. The ribbon passes in straight lines from one to the other of saidv spools and through a bifurcated vibrator 43 adjacent the printing-point. Each arm of the vibrator 43 is formed by bending a strip of metal closely about two shafts or pins 44 45 to clamp the same, and the strips of metal beyond the shaft 45 are separated from each other to form slotted arc-shaped guides, one end of eaeh piece of metal being bent back over itself, as illustrated in Fig. '7, but not touching the other projecting end, thus leaving two open slots 46, through which the ribbon may be introduced into the vibrator and withdrawn therefrom. The ends of the shafts 44 45 project beyond the vibrator 43, and the ends of shaft 45 rest loosely in slotted areshaped guides 47, while the ends of shaft 44 fit more closely in the said guides 47. The guides 47 are formed of sheet-metal fingers bent back upon each other and secured by rivets 48, as indicated in Fig. 7. The guides 47 are formed upon an arc of such radius, and the center of the are is placed relativelyto the axis 13 of the platen 12, and the vibrator 43 is so disposed relatively to its guide-rods 44 45 as will secure that the vibrator 43 shall not only move circumferentiallyof the platen, but shall also have a turning motion toward the platen as the rods 44 45 are moved backward and upward in the slots of the guides 47, thus bringing the vibrator 43 to the surface of the platen, with the ribbon over the printingpoint, said turning movement being independent of the device by which the vibrator is operated or lifted. The guides 47 are formed from one piece of metal, as indicated at 49, and are attached to the front carriageguide rod or track 4 by screws 50, which pass through perforations 51 in the part 49 and enterthreaded holes in the rod 4, the connection being a loose one to allow the guides 47 to have play to aid in bringing the ribbon 40 close to the platen. A sleeve 52 fits loosely upon the rod 44 between guides 43 and is provided with a projecting arm 53, to which one end of a connecting-rod 54 is attached. The other end of the rod 54 is pivotally connected with an arm 55, projecting forwardly cra t/ with a rearwardly-extending arm, to which one end of a rod 59 is pivotally connected, the other end of said rod 59 being connected with a universal bar 60, extending under the key-levers 32. The bar 60 is carried by arms 61, pivoted to the frame 1 at 62. A spring 63 has one end caught underneath a rib 64 on the frame 1, then passes over and in contact with the bar 30, and the other end of said spring lies under and presses upward against the universal bar 60 to maintain the same in contact with the key-levers The ribbon-spools 41 and 42 are mounted in a suitable manner upon the upper ends of shafts 65. The shafts 65 are journaled in arms 66 67 of side standards or risers 68 at the sides of the machine, the shafts being provided with shoulders for resting on the tops of the lugs 66 and with collars 69 below the lugs 66 for preventing endwise motion of the shafts. Hence each spool is capable of a rotary movement, but is incapable of an axial movement-that is, a movement longitudinally of its shaft. Leaf-springs 70 have oneend secured to the standards 68 and the other ends bent around and pressing against the shafts 65 to furnish frictional brakes for preventing too rapid unwinding of the ribbon from the spools. Just above the bearing 67 each shaft 65 is provided with a loose sleeve 71 thereon, and the sleeve is provided with a pinion 72 and with beveled radial teeth 73 on the end of the sleeve and forming one member of a clutch. The lower part of each shaft 65 is provided with alongitudinal groove 74 therein, and on said shaft a sleeve 75 is loosely mounted to move endwise thereof and which is prevented from turning on the shaft by a pin 76, fast in thesleeve and projecting into the groove 74. The upper end of each sleeve '75 is provided with a flange 77 and the lower end with ratchet or bevel teeth 78, adapted to engage with the teeth 73. The endwise motion of each sleeve 75 is sufficient to cause the engagement and disengagement of

teeth

73 and 78 of the clutches.

The flanges 77 form part of a mechanism for engaging and disengaging the teeth 78 and the teeth 73 of the clutches, as will next be described. At each side of the machine and journaled in the corresponding riser 68 is a short shaft 79, provided at one end with a cam-arm 80, adapted to engage underneath the associated flange 77, and at the other end said shaft is provided with an arm 81, connected by a slot and pin 82 with an arm 83, projecting forwardly from shaft 57 aforesaid. The cams S0 at the two sides of the machine are oppositely disposed-that is to say, one is adapted'to raise or lift its associated flange, sleeve 75, and clutch member 78, while the other is adapted to simultaneously release its associated sleeve 75, flange 77, and clutch member78 to permit them to fall or move downward into engagement with the corresponding clutch member 73. Thus one ribbon-spool shaft is disengaged fromits driving pinion 72, while the other spool-shaft 65 is connected with its driving-pinion 72 simultaneously. The ends of the shaft 57 are provided with knurled thumbwheels 84, by which the shaft may be rotated at will to reverse the travel of the ribbon. As shown in the drawings, the spool 41 is disconnected from and the spool 42 is connected with its pinion 72. By turning the shaft 57 in the direction of the arrow on Fig. 2 the sleeve 75 at the right-hand side is lifted to disengage the clutch at that side, while the sleeve 75 at the left-hand side of the machine'is lowered to engage the clutch thereon, and thus disconnect the spool 42 from its pinion 72 and connect the spool 41 with its pinion 72. In other words, the spools are alternately engaged with and disengaged from the ribbondriving mechanism.

The means by which the pinions 72 and the ribbon -spools are driven will next be described. At the inner side of each pinion 72 is a bar 85, provided with teeth 86 for engaging with the pinion 72 continuously. The bars during the operation of the machine are moved forward and backward upon the frame 1, being guided in such motion by the slots 87 in the bars and pins or studs 88 on the base 1. The means shown for reciprocating the bars 85 comprise springs 89, connected with pins 90 on the bars and with pins 91 on the framework of the machine for moving the bars in one direction, and also guide-pins 92, projecting upwardly from the bars and between which crank-pins 93 engage, the said crank-pins being carried by arms 94, projecting downwardly from a rockshaft 95, which is suitably journaled in the risers or standards 2 and is provided with a rearwardly-extending arm 96, curved to pass beneath the front rod 4 of the carriage-track and extending rearwardly in position to be engaged bya bar 97, fast to the carriage 7 and extending in a direction oblique to the line of the carriage. The cam-bar 97 comprises a plate or bar secured to the carriage 7, so as to have its lower or working face or edge inclining upwardly from left'to right.

of the machine, whence it results that the arm '96 may be in a more elevated position when the carriage 7 is at the extreme left hand of its motion than at any other time and that the arm 96 is depressed to the full extent when the carriage is at'its extreme right-hand position. The parts are so arranged that the springs 89, exerting their strength through the bars 85, arms 94, and shaft 95, cause the arm 96 to press upwardly against the cam-bar 97, whence itresults that the retraction of the carriage 7 causes the cam-bar 97 to depress the, arm 96 and rock the shaft and arms 94, and thus move the bars 85 from their rearward positions (shown in full lines in Fig. 4) to their forward posi-' tions, or that shown in dotted lines in Fig. 4. During the forward mot-ion of the bars the clutch members 73 rotate reversely, and so slip by the clutch members 78 without actuating the same to rotate the shafts 65. On the movement of the carriage 7 toward the left-hand side of the machine the springs 89 retract the bars 85, thus causing the pinions 72 and clutch members 73 to be rotated in the direction in which they move for driving or rotating that shaft 65 which may be connected with its driving mechanism, and thus wind the ribbon onto the corresponding spool.

Each key-lever 32 is connected to and operates a type-bar 98 to move the same from the position shown in full lines in Fig. 1 to the position shown in full lines in Fig. 3. Any suitable mechanism may be used for the purpose of operating the type-bars,since typeoperating mechanism forms no part of the present invention. The type-bar operating mechanism shown in the drawings, however, forms the subject-matter of my aforesaid application for Letters Patent and which is briefly described below. Each type-bar is pivoted at or near the angle or bend of an L- shaped type-bar hanger 99, secured to one or the other of two arc-shaped type-bar-hanger supports 100 101 in front of and below the printing-point. Bell-levers 102 are pivoted at 103 to the free ends of one arm of the l.- shaped type-bar hangers and are connected with the corresponding type-bars by eccentric-toothed gearing 104. Each bell-lever is connected with the corresponding key-lever 32 by means of a connecting-rod 105, which is pivotally connected to the bell-lever and the key=lever.

The operation of the foregoing devices is as follows: Upon the depression of a key-lever 32 the universal bar 60 is carried downward thereby, and the bar 60, through the connecting-rod 59, arm 55, and link 54, causes the ribbon-vibrator 43 to move upwardly, and

IIO

the described connection between the ribbon- Vibrator 43 and the relatively fixed guides 47 causes the ribbon-vibrator 43 to move upwardly and rearwardly to bring the ribbon closelfy adjacent to the platen near and over the printing-point, so that upon the impact of the type the ribbon will be carried against the platen and the impression will be made upon the substance upon the platen. The depression of the key-lever also throws the corresponding type-bar 98 rearwardly and downwardly to cause the impact of the type, as above described. Also the overhangs 31 depress the universal bar 38, and this universal bar through the described connections rocks the arm 23 forwardly and downwardly to bring the holdingdog 21 into engagement with the escapement-wheel 19. Upon the release of the depressed key the spring 33 lifts the lever 32, and the lever, operating through the rod 105 and the bell-lever 102,

returns the type-bar to normal position. At the same time the spring 63 returns the universal bar to its normal position, and the bar 60, connecting through the rod 59, lever 55, and the link 5t, moves the ribbonvibrator 43 downwardly to normal position, thus uncovering the printing-point and leaving the same in plain view of the operator, who may examine the imprints without craning the neck or moving the body. At the same time the spring 25 returns the bar 23 to the position shown in Fig. 1 and the type-writer carriage 7 is moved forward one letter-space, being drawn by a suitable spring-drum 106 and a connection between the drum and the carriage. The ribbon-vibrator guide being connected to the obliquely-shifting carriage and platen, it and the vibrator and the ribbon all shift with the platen, and hence the relationship of these parts is maintained at all timesthat is to say, in both the lower and upper case position of the platen. Assuming that the carriage 7 is at the extreme right hand of its limit of traverse, the relative positions of the arm 96 and bar 97 are as illustrated in dotted lines 96 and 97 in Fig. 4, at which time the bars 85 are in their forward positions (also indicated in Fig. tin dotted lines) and the springs 89 are placed under tension. Upon the depression and release of the keys thereafter the carriage moves to the left in the usual manner and the bar 97 by releasing the arm 96 to a small extent allows the springs 89 to draw the bars 85 rearward of the machine a corresponding amount, thus rotating the gears or pinions 72 and through the described clutch connections rotating one of the spools all 42 to wind the ribbon thereon and to draw itfrom the other spool. It will thus be seen that the ribbon is wound from one spool to the other by the force of springs put under tension when the carriage is returned to the right-hand side of the machine and that the winding from one spool to the other takes place evenly and automatically during the step-by-step movement of the carriage to the left and by the contraction of the springs 89. When the carriage has reached its extreme left-hand position, the relative positions of the arm 96 and the bar 97 are as indicated in Fig. 4: by the full lines for the arm 96 and by the dotted lines 97 for the bar 97. Upon returning the carriage from the left the bar 97 moves in the direction of the arrow at Fig. 4 and depresses the arm 96 from the position shown in full lines to the position shown in dotted lines, and in doing so the shaft 95 is rocked and the arms 9% more the bars 85 forwardly of the machine, thus putting the springs 80 under tension again. It will be observed that both ribbon-spools remain m0- tionless during the return stroke of the carriage.

While one object of the invention is to move the ribbon longitudinally by power independent of the carriage-driving power and of the finger-pressure of the operator, it is obvious that in so far as certain features of myinvention are concerned any spring or springs or spring mechanism other than the springs 89 may be employedas, for instance, the carriage-driving spring-and hence, so far as certain features of my invention are concerned, it is not essential that the racks 86 be moved in one direction by means independent of they carriage and carriage-driving spring, and it will be understood that while I prefer to use.

the independent springs 89 any other spring or springs having some other function or duty as well to perform may be employed to serve the functions of thelatter, which in the example shown have only one office to perform.

Various features of construction shown and described herein, but not claimed, are setrforth and claimed in an application filed by me February 20, 1900, Serial No. 5,901, the samebeing a division of my aforesaid application, Serial No. 703,642, filed January 28, 1899.

That I claim as new, and desire to secure by Letters Patent, is

1. In a type-writing machine, the combination of a carriage, a cam controlled by the car riage, a ribbon-spool shaft, and spool-shaftrotating mechanism arranged wholly between said cam and said ribbon-spool shaft and connecting the two together, whereby the shaft and the intervening connecting mechanism alone effect a rotative movement of the shaft.

2. In a type-writing machine, the combination of ribbon-spool shafts, a carriage, a cam on said carriage, a mechanism for and rotating'each of said shafts and connected with said cam, and adjustable means for disengaging and engaging said mechanisms and shafts in alternation whereby the ribbon may be wound upon .either spoolat will.

3. In a type-writing machine, the,combina tion of a platen-carriage, a rock-shaft operated by a longitudinal movement of the carriage, ribbon -spools, an inkingribbon mounted thereon and connections between said spools and said rock-shaft for operating the spools to feed the ribbon longitudinally, without axial movement of the spools.

4. In a type-writing machine, the combination of a carriage provided with a cam, an arm or lever working against said cam, a rockshaft connected to said arm and to the ribbon-spools, and means connecting said shaft with the spools whereby a rotary movement only is imparted to the latter by the longitudinal motion of the platen-carriage in one direction in order to feed the ribbon longitudinally.

5. In a type-writing machine, the combination of a platen-carriage, a cam thereon, a rock-shaft provided with an arm, a spring for pressing said arm. against the cam, whereby the rock-shaft is rotated in one direction by the cam surface and in the other by the spring, and a ribbon-spool shaft connected by shaft-rotating mechanism to said rock-shaft,

said shaft rotating mechanism being arranged wholly between said spool-shaft and said rock-shaft, whereby a rotary movement is communicated to said spool-shaft.

'6, In a type-writing machine, the combina tion of'a platen, a carriage,'a pair of ribbonspools 'mountedin front of the platen upon upright shafts, means arranged between the spools for moving a portion ofthe ribbon width wise to cover and uncover the printingpoint, a cam mounted upon the carriage and extending longitudinally thereof,a rock-shaft extending transversely of the machine and having an arm, a spring for retaining said arm against said cam, and means for enabling said rock-shaft to impart only a rotary movement to said spool-shafts,

7. In a type-writing machine, the combination of an inking-ribbon, ribbon-spools, ribbon-spool shafts, a platen-carriage, an oblique bar connected and moving with said carriage, means for rotating one of said ribbon-spool shafts without moving the latter endwise and connections between said means and said oblique bar, the whole being arranged to rotate the shaft during the forward motion of the carriage only, substantially as described.

8. In a type-writing machine, the combination of an inking-ribbon, ribbon-spools, ribbon-spool shafts,independent to-and-fro movable racks connected with and for rotating said shafts each in one direction only, and disconnectible therefrom, a platencarriage, an oblique bar on said carriage, and connections between said bar and said shaft-operating racks for controlling the same,whereby the ribbon is moved longitudinally only as the carriage moves in one direction.

9. In a type-writing machine, the combination of an inking-ribbon, ribbon-spools, ribbon-spool shafts, a platen-carriage, an oblique bar on said carriage, a rock-shaft connected with said bar to be moved thereby, two similar mechanisms for rotating said spool-shafts and connected with said rockshaft and each having a disconnectible part, with means for disengaging said oblique bar from said shafts in alternation and said mechanisms being adapted to rotate their shafts each in but one direction, the whole being arranged to rotate a ribbon-spool shaft only as the carriage moves forward.

10. In a type-writing machine, the combination of a ribbon-spool shaft, a pinion, a clutch, an endwise-movable rack engaging said pinion, a rock-shaft connected with said rack to move the same endwise, an arm on said rock-shaft, a carriage and an oblique bar on and moving with said carriage and operating said rock-shaft arm.

11. Ina type-writing machine, the combination of a ribbon-spool, a shaft carrying the spool, a pinion, a clutch connecting the shaft and pinion, a reciprocatory rack engaging said pinion, a carriage, a cam-bar on the carriage, and connections intermediate the cambar and the rack for moving the latter endwise.

12.' In a type-Writing machine, the combination of a ribbon-spool shaft, a pinion, a clutch connecting the shaft and pinion, an endwise-movable rack engaging said pinion, a spring for moving the rack endwise in one direction, a carriage, a bar on said carriage having one edge or face inclined or oblique to the direction of motion of the carriage, a rocker-arm connected with the rack to move the same and to be moved thereby under the action of said spring and bearing against the said inclined or oblique edge of said bar under the action of the spring for moving the rack, whereby the rack is moved in one direction by the operation of said bar and in the other direction by the said spring, substantially as described.

13. In a type-writing machine, the combination of a ribbon-spool shaft, a pinion, a clutch for connecting said shaft and said pinion, a reciprocatory rack engaging said pinion, a carriage, a cam-bar on said carriage, a rock-shaft provided with two arms one of which is operated by said cam-bar and means for connecting the other arm with said rack for moving the rack endwise, substantially as described.

14. In a type-writing machine, the combi' nation of a ribbon-spool shaft, a pinion, a clutch for connecting the shaft and pinion, an endwise-movable rack engaging said pinion, a spring for moving the rack endwise in one direction, a carriage, a bar on said carriage having one edge or face oblique to the line of travel of the carriage, a rock-shaft having an arm bearing against said oblique face or edge, and a second arm on said shaft connected with the rack bar to move the same against the force of said spring and to be moved by said spring and rack, whereby the first-named arm is held in contact with the oblique or cam face of said bar on the carriage.

15. In a type-writing machine, the combination of two ribbon-spool shafts, two pinions, clutches for connecting said pinions and said shafts, means for holdingsaid clutches out of operative position one at a time, recip rocatory racks engaging said pinions, a carriage, a cam-bar on said carriage, and connections intermediate the cam-bar and the racks for moving the latter endwise, substantially as described.

16. In a type-writing machine, the combination of two ribbon-spool shafts, a pinion for each shaft, a clutch for connecting each pinion with its shaft, means for holding said clutches out of action one at a time, a reciprocatory rack for and engaging each of said pinions, springs for moving said bars endwise in one direction, a carriage, a bar on said carriage having one face or edge oblique to the direction of motion of said carriage,

an arm for coaction with said oblique face of said bar, and connections intermediate said arm and said rack-bars for moving the rackbars endwise against the force of said springs and moved by said bars and springs to bring said arm against said oblique face of the carriage-bar.

17. In a type-writing machine, the combination of ribbon-spool shafts,a pinion for each shaft, a clutch for connectingeaeh pinion with its shaft, means for holding said clutches alternately out of operation, an endwise-movable rack for and engaging each pinion, springs for moving said racks endwise in one direction, a carriage, a bar on the carriage having a face oblique to the direction of the motion of the carriage, a rock-shaft, an arm on said shaft adapted to engage with said oblique face, and other arms on said shaft connected with said rack-bars for moving them against the force of said springs and moved by said springs and racks to hold the firstnamed arm against said oblique bar.

18. In a type-writing machine, the combination of ribbon-spool shafts, oscillatory pinions for operating said shafts, means for oscillating said pinions, clutches for connecting said pinions with their respective shafts, a

, flanged sleeve on and movable endwise only of each shaft and carrying each one member of the corresponding clutch, oppositely-acting cams for engaging said flanges to move the sleeves eudwise of the shafts, and means for simultaneously operating said cams in the same direction whereby one clutch is engaged and the other clutch is disengaged and the direction of the ribbon travel is reversed.

19. In a type-writing machine, the combination of a platen, a carriage, a pair of ribbon-spools mounted in front of the platen upon upright shafts, means arranged between the spools for moving a portion of the ribbon widthwise to cover and uncover the printingpoint, a cam mounted upon the carriage and extendinglongitudinally thereof, a rock-shaft extending transversely of the machine and having an arm engaged by said cam, pinions upon said spool-shafts, means for enabling said rock-shaft to oscillate said pinions, and means for operatively connecting said pinions with their respective shafts in alternation.

20. In a type-writing machine, the combination of ribbon-spool shafts, driving mech anism for operating said shafts, said driving mechanism including clutches having members rotatable with and movable longitudi nally of said shafts for engaging and disengaging the clutches, flanges connected with said clutch members on the shafts, oppositelyacting cams constructed to directly engage said flanges, and means for simultaneously operating said cams to disengage one and reengage the other of said clutches whereby the direction of travel of the ribbon is reversed, substantially as described.

21. In a type-writing machine, the combination of ribbon-spool shafts, clutch members rotated with and movable lengthwise of said shaft, oscillatory pinions provided with clutch members for engaging the aforesaid clutch members on said shafts, means for driving said pinions, a rock-shaft, and connections between said rock-shaft and said spool-shaft clutch members for moving the said members alternately into engagement with the pinion clutch members, substantially as described.

22. In a type-writing machine, the combination ofribbon-spool shafts provided with longitudinal grooves 74, sleeves on said shafts and each having a pin 76 engaging the corresponding groove 74, flanges 77, clutch members 78, pinions 72, clutch members 73 connected with said pinions, movable rackbars engaging said pinions, means for reciprocating said rack-bars with the carriage, re- Verse-cams 80, arms 81 connected with said cams, rock-shaft 57, arms 83 on said shaft and connected with arms 81 to rock the same, and a thumb wheel or button on said shaft 57 for operating the same.

23. In a type-writing machine, the combination of a platen, an obliquely-shifting carriage therefor, ribbon -spools on the main frame, and a ribbon-guide attached to the shifting carriage mechanism whereby the guide and ribbon are shifted obliquely when the platen is shifted.

24. In a type-writing machine, the combination of an obliquely-shifting platen-carriage, a ribbon-vibrator, and means by which said vibrator is shifted obliquely when the platen is shifted.

25. In a type-writing machine, the combition of a platen, an obliquely-shifting platencarriage, a ribbon-vibrator, and a guide for said vibrator attached to the carriage-shifting mechanism whereby the vibrator is shifted obliquely with the platen.

26. In a type-writing machine, the combination of a platen, an obliquely-shifting earriage therefor, type-bars arranged to strike on the platen in View of the operator, a ribbon mounted on spools, a ribbon-vibrator through which said ribbon passes, and means for vibrating the same to expose the print ing-point, part of said vibrating means being attached to or mounted upon the carriageshifting mechanism, whereby the ribbon-vibrator is moved obliquely with the shifting platen.

27. In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, an inking-ribbon normally at the front side of said platen and below the printing-point, a ribbon-vibrator and means for turning said vibrator and moving the same upward and backward to carry the ribbon over the printing-point and for returning the ribbon and vibrator to normal position.

28. In a type-writing machine, the combithe printing-point at its upper front side, an.

inking-ribbon normally extending along in front of the platen and below the printingpoint, a ribbon-vibrator and a curved guide for said vibrator whereby the vibrator slides and turns asit is moved toward and from the printing-point.

29. In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, an inking-ribbon extending along in front of the platen and below the printing-point, a ribbonvibrator, and a pivotallymounted curved guide for said vibrator, whereby the vibrator slides and turns as it is moved toward and from the printing-point and the guide yields readily to permit the vibrator to be close to the platen at the moment of impact of the type.

30; In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, an inking-ribbon normally extending along in front of the platen and below the printingpoint, a ribbon-vibrator, a curved guide for said vibrator, a lever connected to the vibrator, a universal bar, and connections between said lever and said bar.

31. In a type-writing machine, the co1nbination of type mechanism, a-platen having the printing-point at its upper front side, an inking-ribbon normally extending along in front of the platen, a ribbon-vibrator, a pivotally-mounted curved guide for said Vibrator, a lever, a universal bar, and rods connecting-the lever with the vibrator and the bar.

32. In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, ribbon-spools in front of the platen and on the framework, an inking-ribbon passing horizontally from one to the other of said spools and below the printing-point, a ribbon-Vibrator adjacent the printing-point, and a curved guide along which the vibrator is moved and by which it is caused to turn as the vibrator carries the ribbon over and from the printingpoint.

33. In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, ribbon-spools at the front of and adjacent the platen and having vertical axes, an inkingribbon passing from one to the other of said spools, a ribbon-vibrator normally on the same level as the spools, means for operating the Vibrator, and means for causing saidvibrator to turn independently of said operating means as it is moved upward and rearward and back again from normal position to carry the ribbon over and from the printingpoint.

34. In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, ribbon-spools at the front of and adjacent the platen and having vertical axes, an inkingribbon passing from one to the other of said spools and a ribbon-vibrator normally on the same level as said spools, a curved guide for said vibrator, and means for connecting the vibrator with the guide whereby the Vibrator is given a turning movement as it is moved along said guide to carry the ribbon over and from the printing-point.

35. In a type-writing machine, the combination of axially-motionless ribbon-spools, a carriage, a cam controlled by said carriage, and mechanism connecting said cam to said ribbon-spools and constructed to rotate the latter. h

36. In a type-writing machine, the combination of ribbon-spools, shafts therefor, a carriage, a cam controlled by said carriage, and mechanism controlled by said cam for rotating said spool-shafts without imparting endwise movement to the latter.

37. In a type-writing machine, the combination of a pair of ribbon-spools, a pair of vertical shafts upon which said spools are mounted, a platen-carriage arranged in rear of said spools, a cam controlled by said carriage, and means controlled by said cam for rotating said spools.

38. In a type-writing machine, the combination of a pair of ribbon-spools, a platen arranged in rear thereof, a series of key-controlled type-bars constructed and arranged to strike the platen upon the upper front side thereof, a power driven carriage for said platen, means for shifting said carriage obliquely, means for controlling the letter-space movements of said carriage in either of its shifted positions, and means controlled by said shifting carriage for rotating said ribbon-spools.

39. In a type-writing machine, the combination of a platen, a carriage, a cam mounted upon the carriage and extending longitudinally thereof, a rock-shaft having'an arm engaging said cam, a pair of racks operated by said rock-shaft, a pair of vertical ribbon-spool shafts having pinions engaging said racks,

and means for effecting a disconnection between said racks and said shafts in alternation.

40. In a type-writing machine, the combination of a pair of ribbon-spools having vertical axes, ribbon winding mechanism, a platen arranged in rear of the spools, a carriage for said platen, a series of key-controlled type-bars arranged forwardly of the platen and constructed to strike the platen upon its upper front side, so that the face of the type when printing lies in an oblique plane, and means supported upon the frame of the machine and arranged between the spools for automatically lifting a portion of the ribbon upwardly and presenting said portion to the type so that said portion lies in a plane which is oblique to said spool-axes and substantially parallel with the face of the type when printing, and then automatically returning said ICC portion to a normal position so as to expose the printing-point.

41. In a type-writing machine, the combination of a pair of ribbon-spools having vertical axes, ribbon winding mechanism, a platen arranged in rear of the spools, a carriage for said platen, means for shifting said carriage and platen obliquely, a series of keycontrolled type-bars arranged forwardly of the platen and constructed to strike the platen upon its upper front side, so that the face of the type when printing lies in an oblique plane, and means supported upon the frame of the machine and arranged between the spools for automatically lifting a portion of the ribbon upwardly and presenting said portion to the type, so that said portion lies in a plane which oblique to said spool axes and substantially parallel with the face of the type when printing, and so that said portion covers the printing-point at either of the shift positions of said platen and carriage, and then automatically returning said portion to a normal position so as to expose the printing-point.

42. In a type-writing machine, the combination of a platen, an obliquely-shifting carriage therefor, an obliquely-shifting frame engaging said carriage, a guide mounted upon said frame and shifting therewith, and a ribbon-vibrator mounted upon the framework of the machine and working in said guide.

43. In a type-writing machine, the combination of a platen, an obliquely shifting platen-carriage, a guide arranged in front of the platen, means for shifting said guide obliquely when the platen is shifted, and a ribbon-vibrator mounted upon the framework of the machine and working in said guide.

44:. In a type-writingmachine, thecombi nation of a platen, an obliquely shifting platen-carriage, a slotted guide connected to a part of the carriage-shifting mechanism and extending up in front of the platen, and a ribbon-vibrator mounted upon the framework of the machine and working in the slots in said guide.

45. In a type-writing machine, the combination of a platen, an obliquely shifting carriage therefor, type-bars arranged to strike on the platen in view of the operator, spools arranged in front of the platen, a ribbon-vibrator arranged between the spools and mounted upon the framework of the machine, and a curved guide connected to a portion of the carriage-shifting mechanism and engaging said ribbon-vibrator.

46. In a type-writing machine, the combination of type mechanism, a platen having the printing-point at its upper front side, a carriage, an obliquely-shifting carriage-rail arranged below the platen, a guide attached at its lower end to said rail and extending upwardly in front of the platen in proximity to the printing-point and having a curved slot, a ribbon-vibrator having means for engaging said slotand pivoted at its lower end upon an arm 55 pivotally mounted upon the framework of the machine, and means controlled by the keys for vibrating said arm.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 27th day of January, A. D. 1899.

BYRON A. BROOKS.

\Vitnesses:

Gno. K. GILLULY, E. M. WELLS.