US1060806A

US1060806A - Type-writing machine.

Info

Publication number: US1060806A
Application number: US56951010A
Authority: US
Inventors: Frank A Young
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1910-06-29
Filing date: 1910-06-29
Publication date: 1913-05-06
Anticipated expiration: 1930-05-06

Description

F. A. YOUNG. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 29, 1910.

Patented May 6,

2 snnnTs-sEs'sT-l.

fj. YoU^NG. TYPE WRITING Mmmm,

` I APPLIUATION FILED JUNE 29, 1910. 4 1,050,896. l Patented May 6, `1913.

I l K 2 SHEETS-snm g.

entren sfrirrns Afrivr ormoni.,

FRAN K A. YOUNG, F NEW YORK, yN. Y.,ASSIGNOR T0 UNDERWOOD TYPEWRITER COMPANY, 0F NEW YORK, N. Y., A .CORIlEORATION OF DELAWRE.

Tren-WRITING MAeHiNE.

Specification of Letters Patent.

Patented yMay 6, 1913.

Application mea :une 29, 1910; sensi No. 569,510.

. To all whom. zt may concern.'

Be it known that LFRANK A. YOUNG, a

. citizen of the United States, residing in New tion, a

No granted June 22, 1909, is shown j `iccordin ribbon-win ing devices are connected up toA a special ever for silencing the ribbon vibrator, so that the types may print ofi' the ribbon when required, as in making stencils. to the present invention, the

the carriage-driving spring-barrel in a inanner to permit the ribbon-winding inecl'iaiiisin to be simultaneously silenced, so .that the' `ribbon lies entirely dead at the key strokes,

us when stenciling.

n carrying out this invention, the springberrel .is caused to drive u worm, which -rneshes with a worin wheel that is provided upon a main ribbon-winding shaft, the lat-4 ter being movable endwise to connect with either and disconnect from the other ribbonspool shaft. The worin-wheel is lengthened to forni a barrel pinion, so that the worm may always remain in mesh therewith, notwithstandingthe lendwise shiftin of the main ribbon-windin shaft. Te' lever which silencesthe ri bon vibrator is' also connected to a device to lift said worm away from the worm-wheel, so that, although the worm continues to revolve while the carriage feeds, the wornrwheel and the shaft remoinnotionless..

Other features undl advantages will hereiiil after-appear.

In the accompanying drawings, F

-Ui'iderwood front strike 'writing machine, with the present improvements ap lied thereto. Fig. 2 is a perspective view, s ow igure ln is a. plan of a portion of the well-known' ing the main ribbon-drive shaft and its connections, particularly the ineanswhereby it is silenced; the members being shown in normol'positions. Fig. 3 is a front view of parts' seen at Fig. 1; showing theribbon vibrator as silenced, and the ribbon-winding 'mechanism as also silenced. Fig. 4 is a cross-section of the main transverse ribbon- 'driving shaft, showing 'a worin wheel and ratchet mechanism. Fig. 5 is a similar view'- to Fig. 3, but showing-the parts in normalv operative positions. Fig. 6 'is a sectional side elevation of the. worm shaft and the c5 devices whereby it is connectedto the carriagedriving spring-barrel. Fig. 7 is a sectional side elevation of the ribbon-'actuator and the connected lever and ribbon vibrator; these parte shown in normal positions.

The inkin'g ribbon' comprises color lields or stripes 1, 2, through which types 3 strike rearwardly against a platentnot shown). The ribbon is threaded through a vibrator 4, which is operated by a lever 5, the latter lpivotedat 6 upona bracket 7, secured to a shift rail 8 of the capital or case-shifting mechanism in said machine.

A universal bar 9, vibrated by the type Y i bars, is ixed upon a frame 10. Carried upon said frame 10 is an actuator 11, having one vertical. slot 12 vto engage a wrist 13 upon the lever 5, and an opposite vertical slot 14.- to engage a wrist 15 provided upon said lever nearer to the fulcrum 6 of the lever. Said slots are formed in earsjb'ent forwardly from the body of the, actuator, I

and thelatteris adjustable to bringeither slot int'mengagement with its associated wrist, 'adjust-ment beingeft'ected by a link 17 pivoted at 15 tothe actuator, and the latter beingheld by screws or rivets 19 upon a bracket 20, lixed upon said universal bar frame 10; the vertical wall of said bracket having'a horizontal slot 21 through whichsaid screws extend, the slot *permit` ting the required adjustment ofjthe actuator, When the `slot 12 is in engagement with wristl, the lever 5` is given a short stroke,-

and thevupper'stripe 1 iscausedto cover the printing point at the type strokes; When, however, the actuator is shifted to bring the slot. 14: into' engagement with-the wrist 15, the lever 5 is given a greater stroke at the type strokes, and hence .the lower stripe 2 is caused to cover t-he printing point. lFor effecting this adjustment of the actuator, the' link 17 is connectedto an arm 22, lined upon a rock shaft 23, the latter'l vcarrying at its forward end a cross-arm 24,

having ikeys 25, .26, corresponding to the stripes 1, 2, so that, upon the depression of either key,vthe corresponding stripe or color band is brought, intov ilse:

A yielding detent 27 1 s caused to engage the beveled end of a pin 28, projecting rearwardly from arm 24' to hold said.` arm ,either in the position atFig. 5 or -in a reverse position,`lp cause either stripe 2 orl stripe 1 to cover the printing point of the type strokes;

said Vdatent 27 being incapable* of` holding the traih Y24, 23, 22, 17 and 11in a midway position.

Pivoted to the framework 3() of the machineat 31 vis a lever 32, having at its upper lend a handle 33. Between Sits ends it is ver 24 is brought to the horizontal position.

Fig. 1.

i provided withl a transverse ,/'slot 34, whose open end terminates in

opposite cams

35, 36, so constructedthat when the lever is moved to the left, said projection 2S is'en gaged by eitherv one or the other of said cams 35, v36, and the key-bearing cross le,N

at Fig. A3; the entire train of devices thus beingA brought to apOsitio-n midway of. its extreme positions, and both

wrists

13 and 15 being out of. vengagement with the slotted actuator 11, so that the latter, although reciprocating at the type strokes, has no eect upon the ribbon-vibrating lever 5, and hence 'the ribbon is silenced, and the type strikes above or o from the ribbon as at Fig. 3. The sidesof the slot 34 are of suchshape, as, to lock the key-bearing cross lever 24 against movement whiley said lever is in the Fig. 3 position. Atthis time the detent 27 rests -idly lupon the tip of thetooth 28,

As so far described in detail, the parts are l found in said Patent No. 926,050. It will be understood, however, that the Apresent improvements may be applied, in some cases, to machines `in which a bichrome ribbon or a bichrome mechanism is not'used.

The ribbon 1, 2, is carried upon spools 40, one at each sidel of the printing-point, and mounted upon a pair o-f vertical shafts 41,

carryingat their lowerends bevel pinions 42, 43, tb mesh with bevel pi'nions 44,45*, IiXedupon a transverse horizontal driveshaft- 46, which may be shifted end wise to cause either spool shaft 41 td wind.` At

Fig. 1, the pinion 44 is shown engaged ith 41; but by moving the shaft 46 to the right, said pinions are disengaged, and 45 is moved into mesh with 43, thus causing the'direction of winding of the ribbon to be reversed. Upon the shaft is fixed a double-bevel collar '47, to be engaged by a' pointed spring detent 48, for holding shaft 46 at either end of fits endwise movement. carry upon its end a winch 49.

`Upon the shaft 46 is a barrel pinion 50, with which meshes a worm 51, upon a horizontal shaft 52, which extends rearwardly'I and at its rear end connects, by means of 'a pinion 53, with a gear 54, which is fared upon a spring barrel 55, the latter connected by a strap 56 to the paper carriage, a

port-ion of which is seen at 57. During the rotation of the spring barrel, the gear 54 turns the pinion 53, the shaft52, and the Said shaft may worm 51,-and the latter rotates the barrelv pinionor worm-wheel 50, thereby revolving.

the ribbon-driving shaft 46 and either one or the other ribbon-spool shafts 41. The barrel pinion 50 is loose vupon the driveshaft 46, and it is formed with a ratchet wheel 58, with which is engaged a spring pawl 59, pivote-d upon a disk 60, which is formed' upon a hub ,61 of the pinion 44, said hub being secured to the shaft by a screw 62a, .thus permitting the shaft 46 Ato be rotated manually by the winch49, while the pinion 50 is in mesh with the worm 51.

In order to enable the carriage to return Mto the beginning of a new line without turnving the worm shaft 52, a ratchet 62 is fixed `the shaft 46. Said barrel pinion is conined between the disk 60 and the collar 47,

fthe latterhaving a hub 67 secured to the shaft by a screw 68.

The ribbon-winding mechanism is silenced by liftingthe worm 51 from' the wormwheel `or pinion 50. To this end, the shaft 52 is prolonged ,forwardly fro-m .such worm, and is loosely mounted at its forward end at 69 in vone end of a lever 70, which is pivoted betweenits ends at 71,'and carries at its other vend a cam 72, engagea-ble by a pin 73 projecting from the lever 32, so that, as the latter is swung from the normal position at Fig. `5 toward the left to the effective positionat Fig. 3, the pin 73, lby reasonof its engagement with the cam 72, forces the lever 70 to vibrate, carrying up the shaft 52 and releasing the worm 51. The shaft 52 is loosely pivoted at its rear end'in a support 7 4, Fig. 1, to permit the forward endof said shaft to be rocked up as described. Said c am 72 terminates in a dwell port-ion 75, which is engaged by the pin 73, whereby the lever 70. is mechanically held in the silencing position seen at Fig. 3;y so that both the ribbon-vibrating and the ribbonvspring 77, Fig. 2, or by gravity, thus restorln'g the engagement of the worm 51 with the pinion 50. Thus it will be seen that at any time eitherI key 25 or 2G may be depressed to bring either stripe of the ribbon into use;

. and'- any time the lever 33 ma be swung to the left 4to silence both the ribbon-vibrator -,and `the I .ibbOn-vvinding devices;

Having kthus described my invention, l claim': f f .1. In a ribbon movement, lthe combination 'wit-ha carriage-driving spring and ribbon spools, of a shaft, a worm mounted on the shaft, driving means between said spring and shaft, a gear co-acting with said worm, means to connect said gear with -said spools alternately, and means for moving said.

shaft transversely to its length to unmesh.

said worm from said gear.

2.v In a ribbon movement, the combination with4 a carriage-driving spring and ribbon spools, of a" shaft, a worm mounted on the shaft, drivingfconnections between said and shaft, a gear meshing with said 30 worm "means to connect said gear with said lternately, and a lever provided with a bea in'gfor one end of said shaft to move thefwbifm ont/of mesh with said gear.

3. Ina ribbon movement, the combination with a carriage-driving spring and ribbon spools, `of ribbon-feed reversing means, a worm and, gear interposed between said spring, and spools, driving connections between. said spring and worm, said gear being endwise or axially shiftableat the operationlof reversing the ribbon feed, and of such lengthiand position as to remain in mesh with said worm during such endwise shifting, and means for separating the worm and gear, to silence the ribbon.

4. Ina typewriter ribbon movement, the combination with a carriage-driving spring drum, of a shaft driven by said drum,'a Worm on said shaft, a gear with which said. worm is normally in mesh, a lever provided with a bearing for said shaft, ribbonspo'ols .driven from said gear, a ribbon-vi` .hrator, a second lever, and connections whereby said second lever renders said vibrator inactive and moves the first lever to 'nnrnesh said worm and gear.

A 5..In a typewriterl ribbon movement,` the combination with ribbon-spoolsof an end-` wise shiftable shaft, gearing whereby said sha ft drives said spools one at a time, a long gear`or pinion fast on said shaft, a worm meshing with .said long gear in all adjustments, of the latter, and means to separate said ,worm and said long gear.

6.In atypewriter ribbon movement, the

combination with the ribbon spools, of an endwise movable long gear,4 connections whereby said lgear operates said spools, a worm for driving said gear and remaining i in mesh-therewith during the endwise-shifting thereof, and meansnfor moving said worm out of mesh'with' said gear.-

7. In atypewriter ribbon movement, the combination with the ribbon spools, of an endwise -inovable long gear, connections whereb said gear operates said spools, a l worm fbi driving said gear and remainingA in mesh therewith during the endwise shifting thereof, a shaft carrying said worm and movable to carry said worm into and outl of mesh with said gear, and a lever connected with said shaft to move the same.

`8 In a typewriter ribbon movement, the combination with the ribbon spools, of an endwise movable long gear, connections whereby said gear operates said spools, a worm 'for driving said gear and remainingin mesh therewith during the endwise shift ing thereof, a shaft carrying said worm, a lever provided with a bearing for said shaft, whereby said worm may be movedinto. and out of mesh with said gear, and a second lever for operating said shaft moving lever. l.

9. In a typewriter ribbon movement, the combination with the ribbon-spools, of an endwise movable "long gear, connections whereby said gear operates said spools,.a

Worm for driving Asaid long gear, a shaft carrying said worm, a lever provided with .a bearing for said shaft, whereby said worm may be moved into and ont of mesh with said gear, a ribbon-vibrator mechanism, a second lever, and connect-ions from ,the latter for simultaneously operating said shaftmoving lever to unmesh said worm and gear and for silencing said ribbon-vibrator mechamsm.

10. In a typewriter ribbon movement, the combination with ribbon spools, of a carriage-driving spring drum, a shaft geared at one end to said drum to lbe driven there.. hy, means for moving transversely the end of said shaftnot geared to said drum, a second shaft having a gear in mesh with a gear on the Hrst shaft, said gears beingseparable by the transverse motion of -the first shaft, and a pair of ribbon spool shafts con- -worm and said ear. 4

brator n iechanism 1 Vhaving' -'fiisconnetible members,;.'a'hand lever, and4 connections whereby'a'fsai'd hand 'l lever" operates. simuldriveshaft, a' wormvin mesh with said 'gear at eitherfposition'- to4 `whichthelatter is shifted, means for rotating said'worm, and,`

means-for effecting separation between said 13. -The 'combu'latin .of a lpailof connect" with .eithelfspooh .gear jon said drive shaft, a worm in mesh-with said gear 'at either' osition tow`hich thelatter is'shiftl ed, a sha t on which said Worm is mounted, 'a carriage-driving spring 4barrel connected' i j-fior. actuating the same includmg a' link conshaftto eectseparationbetween said worm 14:. The combination' of" apair of ribbon spools, a-'drive Ashaft shiftable endwise to connect with" either spool, a gear .on -said driveshaft, a 'worm in mesh with said gearat eithenposition to which thel latter is shifted, a'-,sh aft on which -said Worm .is mounted, a carriage-driving-sprmg barrel connected to said shaft, and a'lever on which v said worm shaft is journaled, and whereby itis shitableto disengage theV wormfrom the gear.

Y 15.'The combinationotA a'pair ot' ribbon spools, a drive 'shaft shiftable endwis'e to connect with either spool, .a gear on said drive shaft, a worm in mesh with said gear A at either position to 'which the latter is shifted, means for rotating said worm, a ribbon vibrator, means for silencing said vibrator, `and a connection from 'said silencing means to said worm to disengage the latter from said gear.

- 16. In a typewriter ribbon movement,the' combination with the nibbon spools, of an v endwlse movablev 'long' gear, connections whereby said gear operates said spools,- a

.copies e: this patent my be obtained for '-mesh therewith during the'endwise shifting thereof, a shaft carrying said worm, and

.a`lever,provided with a lbearing 'for 'said shaft, whereby said worm'may be `moved into and :olitof mesh witlisaid gear.

j? 17 `The combination of a'carriage-driving spline', ribbon-winding mechanism connected thereto', .a ribbon fvibratingmechanisni, a finger-piece, means controlledby saiduinger-piece for' varying the throw of said vibrating mechanism, anda locking ,neutral `position' and disconnect the; ribbon.- winding mechanism for 'concomitant-ly -silencing said vibrating mechanism and said Winding mechanism. 1'

Y 18. VIn a typewriting machine, the'com- -binatio 1 lever operable 'to hold-said nger-pieceina of ribbon' feeding mechanism, a

@ribbon vibrator, an'operating lever, .means lnected to the lever, said-"link and lever bef'ing relatively movable to vary. the 'distance ``loetween the link and .the lever' ulcrum with- -out' varying the throw of the lever, :.rylevicev'v for changing the positions' of said link to vary-'the 'throw of the vibrator and to disconnect the link t'o render it when actuated inoperative toV move said lever and said vis ribbon vibrator, an operatmg lever therel for, a universal bar, a link connecteddif vrectlyto said universal bar and movablein either direction from a neutral intermediate position to connect it to said operating lever, a device for moving said link to its neutral position to disconnect it from said operating.

lever, and means connected to saiddelrice for rendering said ribbon feeding meansinoperative.

Witnesses K. FnAnKFoR'r, C. RIPLEY.

Washington, D. Q.

FRANK A'. Yonne*- ve cents each, by addressing the "Commissioner ci