US850846A - Type-writing machne. - Google Patents

Description

No. 850,846. PATENTED APR. 16, 1907. J. 0. MGLAUGHLIN.

TYPE WRITING MACHINE.

APPLICATION FILED JAN.19.1906.

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%: Q I I q I v I 1 I 7 PATENTBD APR. 16, 1907. J, 0. MOLAUGHLIN, TYPE WRITING MACHINE.

APPLIOATION FILED JAILIQ. 1906.

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'op crated accent-key mechanism,

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JOHN C. MCLAUGHLIX, OF NEW YORK, X.

L, ASSlGNUli TO [.iNlJllliVVOOl) TYPEWRITER COMPANY, ()l X W YORK, X. Y., A CORPORAIIUN OF NEW JERSEY.

TYPE-WRITiNG MACHINE.

ratentecl April 16, 1907.

Application filed January 19,1906. Serial No. 296,817.

To a, who/rt it lit-mg ounce/'11 Be it known that l), Jonx C. Meilnir'onerv,

a citizen ol the United States,'residing in Manhattan borough, city of New York, in the county of New York and State ol Xew York, have invented certain new and usel'ul Improvements in 'iype-l/ '.riti'i'1g Machines, oi which the following is a specification.

Thisinvention relates to both tl'ieribbon and accent-key mechanisms of type-writing machines-in which the ribbon is VllU'flLBtl to cover and uncover the printing-point at each i type-stroke.

'llie'principal obj ects of my invention are 'to provide a simple, inexpensive, and easilywhereby the,accent-l ey may move its type to the platen andn'iay vibrate the ribbon to cover the printing-pomt, so as to secure an imprint of the type without feeding the carriage, and .to provi(lealso for 'varyii'ig the printing position of the ribbon, so that Writing may be done in dineren t colors, provision being also made for enablingthc types to strike upon the platen directly or without printing through the ribbon. when desired.

In carrying out my invention I provide in connectioi with the usual universal bar operable by the type-keys a ri b bon-vib rating mem her, which is operated by the universal bar and may also be operated. by the accent-type keyv while the universal bar remains stationary. This ribbon-operating men'lber does not control the carriage-feeding devices and the latter remain stationary with the .universal bar, not being atl'ected by the operation of the accen t-typekey, so that theaccenttype maybe printed without feeding the c ar riag'e. Said ribbon-operating member illustrated in the form of a lever, and adjustable means are provided for enabling it to vary the throwofthe ribbon both when. operated by the universal bar and also when operated by the accent-type kcyindependentlyof the urn :ersal bar.

In theaceoinpanying drawings, Figure lis a sectional elevation from front to rear, showing, a portion of the well-known front-strike Underwood type-writingmachin wi h-n i improvements applied thereto, the parts being shown in full lines when theaccent-type key is depressed and when the ribbon-controlling members are adjusted for producing positions.

a short viln'ation ol the ribbon. 'llie movement ol' the ribhon-vibral ing lever for ell'ectin; :1 greater vihrntion ol the ribbon is indirated by dotted lines. Fig.2 is a Nit-w simi lnr to Fig. 1, showing the parts in normal Fig. I) is a rear elevation, and Fig. 4 a plan, of the devices seen at Fig. 2. ln vFigs. 5 and 4 the parts are seenin the'Fig. l position. Fig. 5 a plan of the ribbonvibrating stepped member, which is fixed to the u niversal-har frame.

The platen seen at 1 and runs upon a horizontal rail 2', which. is shiltable up and down to enable different types to print, the platen being mounted. upon a carriage comprising' a rack 3, which meshes with a pinion 4, connected to an cscapen'ient-wheel The types strike upon the trout of 'the platen through a ribbon, which is carried upon spools 6, said. ribbon having upper and lower coior-bands 7 8 and being threaded through a carrier 9. A type-bar 10 carries a plurality 75 of accent-types 11 and is operated by a key 12, mounted upon a lever 13, pivoted at 14, movement being transmitted from said lever through a bell-crank 15 to the type-bar. The type-bars forn'iing the usual systemare similar to that illustrated and are similarly operated by lrey-levers and bell-cranks, and each. of the usual type-bars is provided with a heel 1.6 for operating a segmental universal bar 17, the type-bar it, however, being unprovided with such heel, so that it does not operate the universal bar. The latter is fixed upon a horizontal frame or table 18, which has suitable guides including idle links 19 and moves rearwardly and forwardly. It aotuates a rocker 20, having escapemcnt-dogs 21 to cooperate with' the %S(,L])GII1Q11lJ-Wl180l 5, a spring 22 interning the dog rocker, and universal bar to normal positions .lhe rilihon-earrier 9 is lifted by an elbow: lever 23, the latter being pivoted at 24 upon a bracket'lfi, fixed upon the platen-shift rail L. Said lever 23 has a wrist 26, which may rise and fall in a vertical slot 27, formed in an upright lever 28, which is operable by the universal bar, so that each rearward movement oi the latter throws the ribbon up to print.

The accent-key lever 13 has an arm 2?) fixed thereon, the latter having a projection 30 to bear down upon an arm 31, which is and is threaded into the arm 35.

' seen indotted lines at Figs. 1 and 4.

is depressed and pushes said lever 28, while the universal bar 17 remains stationary, so that the ribbon is thrown up to cover the printing-point, when the accent-type is thrown against the platen, as seen at Fig. 1..

The ribbon-vibrating lever 28 is shiftable bodily in axial direction, or from left to right at Figs. 3, 4, and 5. For this purpose it is pivoted at 34 upon an arm 35, which depends from a slide 36, the latter being looselyretained by screws 37 upon a fixed part 38 of the framework, said screws passing through slots 39 in said slide, which permit movement of the latter from left to right together with said lever28. The latter nay be prevented from tipping facewise by means of a screw 40, which passesthrough a slot 41 in the lever The movement of the slide 36 is effected by a rock shaft 42, having keys 43 on its forward end and having at its rear a pendent arm 44, which loosely engages an extension 45 of said slide. A detent 46 may engage any one of three notches 47 48 49 formed in the slide 36 to retain the latter as well as the. lever 28 in any one of three'positions, dependent upon whether it is to be a short stroke, a long stroke, or no stroke at all during the operat on of the ordinary types. Upon the universal bar is secured, by screws 50, Fig. 5 a

plate 51., having steps 52 and 53, and an intervening notch 54.

is shorter than 53, and when the lever stands opposite 52 it is given a short stroke by the rearward movement of the universal bar, as illustrated .infull lines at Figs. 1 and .4; butwhen it stands opposite the step or projection 53 it is given a long stroke, as The short stroke brings the upper color-band 7 of the ribbon-into use, While the long stroke brings the lower color-band 8 into use, so, that either color may be written, according to which of the keys 43 is depressed.

When the slide 36 is shii ted to the midway position, so that the detent 46 rests in the notch 48, the lever 28 stands opposite the notch 54, and hence is not operated'at all by the rearward stroke ol the universal bar, this being a convenience for writiIW-stencils. The arm 33 of the accentke v n'icdhanism is provided with corresponding steps or proections 55 56 and an intervening notch 57,

Fig. 4, so that when the lever is adjusted to the desired position relatively to the steppedmember 51 on the universal bar it occupies the same position relatively to the. steps and The step or projection.

Variations may be resorted to within the scope of myinvention, and portions of my inprovements may be used without others.

Having thus described my invention, I claim- 1. In a type-writing machine, the combi nation with a platen shiftable up and down, a carriage, types and keys, of a universal bar operable by the keys, a carriage-feeding mechanism operable by the universal bar, a lever also operable by the universal bar, an accent-type key having means for'operating said lover but incapable of or rating the universal bar, and a ribbq vibrating lever shii'table up and down Witn the platen and having a pin-and-slot connection with the first-mentioned lever.

2. In a type-writing machine, the combiation with a platen, a carriage, a carriagei'eeding mechanism, types and keys, of a'universal bar operable by the keys and controlling said carriage-feeding mechanism, a lever operable by said universal barfan accenttype carrier, a key-lever connected to the latter, a rock-shaftoperable by said keylever, an arm upon said rock-shaft for operating the first-mentioned lever, said accenttype-key lever'being incapable of operating said universal bar, and a ribbon-vibratorcontrolled by the first-mentioned lever.

In a type-writing machine, the combination with a platen, a carriage, a carriage feeding mechanism, types and keys,of a universal bar operable by the keys, a ribbonvibrator, adjustable means for enabling the universal bar to move the ribbon vibr'ator through variable distances, an accent-type key incapable of o 'eratin the universal bar, and means for ena h ing t e accent ty e key to vibrate the ribbon through variab e dis tances.

4. In a type-writing machine, the combination with a platen, a carriage, a carriage' feedin mechanism, keys and types, of a universal ar operable by the kc s and controlling the carriage-feeding mecianism, an ac cent-type key incapable of operating the un versal ar, ribbon 'mechamsm operable l: the universal bar, a slnftable device for causing the universal bar to impart different le means including means to vary the throw of the ribbon efieetod by said accentkey.

5. in a type-writing machine, the cooibination with a platen, a carriage, a carriageleeding mechanism, keys and types, of a universal bar operable by'the ke s and controlling the carriage-feedingmec anism, an accent-type keyinca able of operating the universal bar, a varia le throwribbon mechan-j ism operableby theuniversal bar, and means for enabling the accent-type keytooperatesaid ribbon mechanism; the latter including 1 keys, of a ribbon-throwing mechanism opermeans for causing the ribbon either to be idle during the tnye-strokes or to be moved durmg the type-strokes, so as to bring either its Q di'lierent throws to the ribbon at the typeupper or lower edge over the printing-point.

6. In a type'avritmg machine, the combinatlon with a 'platen, a carr age, a carriagefeeding mechanism, types and keys, of a uniling said carriage-feeding mechanism, an. ac

' versalbar operable by the keys and controllatter and lraving stepped portions, a part connected to said universal bar and having similar stepped portions, a lever, means for adjusting said lever in axial direction, so that it may be engaged by either of said stepped members, and a ribbon-vibrating device controlled by said lever.

7. In a typeavriting machine, the combi nation With a platen, a carriage, a carriagefe'eding mechanism, types and keys, of a universal bar operable by the keys and controlling said carriage-feeding mechanism, an accent-type key, a member in the form of a rock-arm controlled by the latter and having steps, a member in the form. of a part connected to said universal bar and also having steps corresponding, to the first-mentioned stops, a lever, means for adjusting said lever in axial, direction, to enable it to engagedifferent steps, and a ribbon vibrating device controlled by said lever; said stepped members having notches; and said'lever being adju'stableto a position op osit'e said notches so as not tobe operate by either of said stepped members.

8.2111 a type-Writing machine,-th e combination with a platen, a carriage, ty es, keys therefor, and a universal-bar operab e by the I able by said universal bar, a finger-piece, shiftable means controlled by said fingerpiece for causing the universal bar to impart strokes, an accent type and key, and means for enabling said accent-key to operate said ribbon throwing mechanism independently of said universal bar, said shiftable means in cluding means to'vary the throw of the ribbon ell'eeted by said accent-ltey.

9 In a typeavriting machine, the co1nbination with a platen, a carriage, and typeoperating keys to feed the carriage, of an adjustable member operableby the keys for throwing the ribbon variable distances, and an accent-type key also provided with means for moving said adjnstable member variable distances, but incapable of feeding the calriage.

10. In a type-writing machine, the combination with a universal bar operable by the he 's of a lever shiftable in axial direction, a

stepped member fixed to said universal bar for engaging said lever, and a ribbon-vibrating lever operated by said lever.

. 1]. The combination with a lever and means for shifting the same in axial direction,'of a ribbon-carrier operated by said lever, and a key-operated device having a stepped member for imparting variable movements to said lever according to-the adjustment of the latter; said lever having a slot to accommodate the shiftingmovements of the platen.

. JOHN C. MoLAUG-HLIN.

Witnesses:

' B.C.3'rio1;NEY,

K. FRANKFORT.

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