US1020871A - Type-writing machine. - Google Patents

Description

F. D. AMMEN. TYPE WRITING MACHINE., APPLICATION HLBD fmm. 1911.

Patelld Mar. 19, 1912.

UNITED STATES PATENT onnicn.

FRANCIS n.1 Ammann', .or-NEW Yoan',` N. Y.. AssIGNon To UNnnnwoon TYPEWRITER. "COMPANL onimwyonmn. Y., n. CORPORATION on DELAWARE.

A .TYPE-WRITING NACHI-IIE.

To all whom t may concern.' I

Be it known that I, FRANCIS D. AMMEN,

a citizen of the United States, residing in New York city, in the'county of NewYork and State of N ew York, have invented'certain new and useful-Improvements in Ty etion of the parts of my 51 shows th WritingMachinea of' which. the following is a specification. l This invention relates -to typewriting machines, and particularly to s ucli'as. are provided with a bichrome ribbon, and which are adapted to beused when desired to form stencils.

v The invention is illustratedI as applied to .a front strike typewriter, in which-the ribbon is normally heldslightly depressedbe- -low the striking face of the platen,- and is raised automatically to come before the type when it strikes. l The object of the invention. is. to enable the ribbon to be actuatedias-fsuggested, an to provide a simple construction which enable the ribbon to be silenced,'that is, held inoperative o r inactive whenl desired, so that the. type may strikedirectly upon the wax sheet on the face of the platen.. In the accompanying drawings, Figure 1 is a plan, indicating certain parts of afront strike typewriter in dotted lines, and, showing the parts of the invention in full lines.' Fig. 2 is a perspective, showing my improvement in full lines, as viewed from. the rear, and indicating the universal bar in dotted lines in order to illustrate the manner of mounting my device in the machine. Iig. 3 is a perspective, showing. a short portion of a way rod, showing the-vibrator and ribbon lever, and also showin the construction'of-the ribbon'lever. ig. 4t is a perspective, showing the. actuator which moves the, ribbon lever, and indicating the manner which it is mounted' andy secured in the universal bar.- Fig..5 isa perspective, showing the cam b meansofwhich the ac` Fi .6 is a reareleva-V igievice, showing, the.

tuator is controlle link which moves the cam broken away, andl to my im isa sidee evatinn of the parts of my iliverlP a way rod beinl shown. in cross section, and the universal being shown in dotted outline.

ar and adjacent parts This view e machine 'for writing in redand' .911, theiowaabana of the bichmme ribbon.

- Specification-of Letters Il'atent. Ptted Mar, 19., 1912. Application tiled February 2, .1911.

Serial No. 606,108.

Fig. is a view Asimilar to Fig. 7, but showing the vibrator brokenaway, and .illustrating the parts in the silenced position, so that the vibrator willnot 'be yactuated to raise the ribbon enabling the type to strike directly upon the stencilsheet.

` 1 represents a typewriter frame of the front striketype, and inthe rear portion of Y thisfifame a universal bar. 2 is mounted in .any usual mannenthefrear end thereof bcing supported on asuitable rocker' 3and..

ries the ribbon 1 0 in the usual manner.

.'I provide the lever 7 with an upwardly exten .armi 1l having an elongated verticalr slot. 12 formed therein. The material forming the rear side of the lever at this point is offset rearwardly in a loop to forni .a-gap or throat 13. extending rearwardly 'from the slot 12. J ust to the rear of the lever 7 Dnjthe universal bar 2, I attach rigidly av guide sleeve- 14, a portion of which extends below the universali bar, as ind1' cated. In this sleeve, from the upper vend thereof, there is received a fiat. shank 15 on an actuator I16, the. upper. endl of the actuator having two-'forks 17' between1 which a wrist pin18 is mounted.,A as indicated, and thiswrist pin 18 lies in theaforesaid slot l2,

'pas shown. On the rearfa'ce of the shank 15 I'provide a rearwardly projectingl pin 19.

"It should; bevunderstood that when the universal bar. ismovedl'the actuator 16 may rockthelever-'Z so:a's' to.move the'vibrator 9. f `'order i to .control jor-adjjist. the. position 'Showmg the parts immediately contiguous.

rev-ement in dotted lines. Fig. I-

preferably in the ormofaislideor f" plate, the body pf said,l lateheingjdlis 4cae 'in a 'vertical plane an having an 'ned slot- 21 whichV-reeeiveslb. aoresaid ,Win19,

as.,inidicated. Theilowefirfptin. otle plate 'i laterally taferm l.3.10,

e way rod 5 of the typewriter` v fics 22, and this, guide-footbas two .elongated alining slots 23 through which guide-screws rearwardly bythetype -act1o n, the wrist .pin

pass, said guide screws being seated in the universal bar 2, as shown.

In this construction, it should fbe under-V stood that 'when thecam is in the position 1S will have a" rearward or lateralpmovement, and rocks thearmllof .the lever7, elevating the 'vibrator 9 sutliciently yto bring .the lowerband or redjband of the bichrome rib-.-

bon opposite the striking .point on the platen.

` If the cam is thrown to. an .extremeposition pin. .18 off the. cftuatotvill.leppositeto the.

toward the-left side of the machine, the slot '2l will move the pin 19 upwardly,and this raises. theactuatorso that the wrist moves into. thexupper: end ofthe slot 12. When this occurs the m o vement ot i the universal barsvill actuate the lever .7, but will give the ribbon just.sutlicientmovementto bring the In.' the mid-position.- .f thesam,.the..wrist ser throat :1.3 of. the Slot. .12, that when the universal bar is ,actuatedgthe' actuator wrist 1 8 moves out intothe gap .orthroat 13 without actuatingthe lever 7 The posif tion .of the cam may .be controlled bya link 25which is attachedto the camflooselyl by a pivot screw 26?, andextends over. toward the right of `the .machine where. it -is 4pivotally connected with a rigidarmj26-eXtend ing upwardly .trema-.rock shaft 27.j This rock shaft is of. the usual construction, and

extends horizontally toward the forward side of the machine whereitis provided with a rigid cross arm 28 havinokeys 29, 30, the former of which should. .the depressed to adapt the mechanism for writing black, and the latter of which is depressed to adapt the machine for writing red.. This 'crossarm 2 8 is normally heldin midfposition-by means ot a suitable controlling device 3l.

` -The ribbon 10 passes from a guide spoolV 32 throughthe upper end of the vibrator to a similar guide spool on the oppositeside .of the machine..

In Fig.. 8 is illustrated the type -.bar.33 striking thehplatenl, and indicatinghow the heel- 35 of .filetype bar forces. theunif versalbarE 2 rearwardly in the .usualmanr ner. The rearward movement ,of .-the. ``uni.-

' versal bar ,howeven-.does not. movethe .lever orthe. reason,that. .the wrist 18 moves into the gap .13, @Sahara Having .thusfdcscr-ibed ...my invention, I Clavlmiw i 1. nIn a typewriting machine, incombina.-

tion, a ribbon holder, a leverpivoted there-.

to, an actuator, a universal bar, a guide for upper. .0r ,blaqkifbeesfopposite. the .Striking said'actuator on said universal bar, a connection-between said lever and vsaid actual .tornormally aitording means at one point for moving said lever lwhen said actuator moves, and means for holding said actuator at another point in said guide at which said vconnectionis inoperative.

2. In a typewriting machine having. a Vuniversal bar, a ribbon lever pivotally mounted adjacent thereto and. having an actuating arm, the combinationof a vibratorattached tosaid lever, an actuator guided on said universal bar, saidactuatorhaving a free connection with said arm, and being adapted to rock said leverby a lateral move` ment, said arm. having a form at one-point permitting the independent lateral. movement of said actuator when in a mid position, -and means for controlling the position of said actuator.

3. Ina typewriting machine, in-combination, a vibrator, a lever connected therewith for actuating the same, a universal bar, said lever having an elongated slot therein, with of, an actuator mountedon .said universal `bar and adapted. tobe -raised or lowered thereupomsaid actuator having1 a 4wrist`v running in said. slot, said wristaiording means for normally moving said lever,- `said gap affording means for permittingthemovementof said wrist without-actuating said lever.-

' 4.- In atypewriting machine, in combination, a member adapted to raise and lower theribbon,a-universalbarv actuated by the type bars, an actuatoradjustably mounted on'- ,said universal bar, and a connection between said actuator and saidy member. comlprising a pin on one constantly riding in a j slot on the other, said slot of saidconnection havinga lateral extension in which said pin may rld'e idly.

5. In a typewriting machine, in combination, avibrator, a` lever pivotally connected therewith and having an arm. with a slot therein,.a'universalbar, an actuatoronsaid y bar, said actuator havinga p inrunning in y saidslot, and said slot having a laterally disposed gap which mayreceivesaidpin, enablingsaid actuator to move -withsaid universal bar without actuating saidlever, and

-a cam for shifting saidactuator up and Vdown on said universal-bar.

6. -In a .typewriting machine, the combinationwith a reciprocating universalbar, of a sleeve thereon,.a ribbon-.vibrator,- an actuator. constantly-.engaging said. vibrator, andl a key. operated mexnber. .to positively-move and .hold said ,actuator` in .said ,sleeve to .vary

7. In a typeW-riting machine, the combinaa sleeve thereon, a ribbon vibrator comprising-a slot, an actuator carrying a pin cona laterally projecting gap at the side there- '1 and a key controlled double cam moving A said actuator in said sleeve to vary the ing forming an aperture in throw of said Vibrator.

8. In a typewriting machine, the combination with a pivoted ribbon vibrating lever, of a pin riding in an opening therein, a universal bar actuating said pin to vibrate saidlever, so that when adjacent one end oi said opening it brings one edge of said ribbon to the printing point, and when adjacent the other end of said slot it brings the otheiedge of said ribbon to the printing point, and a break in the Wall of said open- Which said pin may ride idly.

9. In a typewriting machine,- the combination with a pivoted ribbon vibrating lever, of a pin riding in an opening therein, a universal bar actuating said pin to vibrate said lever, so that when adjacent one end of said opening it brings one edge of said ribbon to the printing point, and When adcent the other end of said slot it brings the other edge of said ribbon to the printing point, and a break in the Wall of said opening forming an aperture between said ends in which said pin may ride idly.

FRANCIS D. AMMEN.

Witnesses:

C. RIPLEY,- PAUL ZIRON.`

Copies of this patent maybe obtained for ve cents each, by addressing the Commissioner of Yatents.

Washington, D. C.

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