US932167A - Type-writer. - Google Patents

Description

L. J. EELL.

TYEE WRITER. l APPLICATION FILED APR. l5, 1907. 932, l Patented Aug. 24, 1909.

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E. J. OEEEE.l TYPE WEITER.-

. APPLICATION FILED APR.15,1)07. l 'A Y 932, E 6? mamma Aug. 24, 1909.

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` TYPE WMTER. APPLICATION FILED AP'R.15, 1907.

Patented Aug. 24, 1909.

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TYPE-WRITER.

Specification of Letters Patent.

raiemedaug. 24, i909.

Application filed April 15, 1907. Serial No. 368,178.

To all whom. 'it 'may concern.;

lie ill lonjwn ilit l, lievi Qi'. Gmini., citizen ot the United States, residing at Chicago, in

.the county ot' Cool; and State of illinois, o have invented certain new and useful linpi'ovements in tollowing;A a specification.

.t'ly invention .relates to type-writing machina-s and has :pecial reference to that class ot imicliinesl employing a single laey secured .to a movable ffhar, the various printing` positions beineA regulated by means of an attached stylus.v

The chiot objects oi produce a type-writing iny invention are to y machine of the class lated that will be .simple in its 1nech anism, easy to operate, and that can be readily understood and manipulated by an unskilled person.

Further objects are to' provide improved (s ior operatinpl the inlring` mechanism with a view to increase its eliieiency and :dui-ability; to ifurnish a reliable and conveulentmethod ot handlingthe paper; to render the various parts durable, and to produce a machine oi such design and construc- -ticn that -it can be economically manufactured.

l accomplish the above and other important results by the employment of the ine- -chanical construction illustrated in the ac- '.companying drawings which form a part or' ythisspecication and in which:

Figure l is a perspective view of my im.- proved ltypc-writing machine in its complete torni; 2 is a front elevation; Fig. 3 is a side elevation; Fig: is a sectional top plan View the plane of section passing im1nedi-- ately beneath the type-bar trame, cutting the sappia-ting 'bracket and carriage operating lug; Fig. 5 is a side view of the type bar and attachments; Fig. 6 is a fragmentary view show-ing a portion of the rack plate and zo-acting levers; Fig. 7 is an end view of the 4type bar with some parts removed and others lirolren awa y; Fig. S is a partial view showing the line spacing mechanism with the thumb wheel removed; Fig. 9 is a partial -view showing the spring `tor the type-bar trame and adjusting device; Fig. 10is a side view or' the line spacing` lever, `and Fig.

ype-lVriters,4 of which the `derod` screws -25.

a fragmentary view showing the bell the mechanism is supported and which is 'furnished with feet'l, preferably formed with rubber to prevent abrasion of the desk or table upon which the machine may be placed. This plate is provided with a pillar 14 formed integral therewith, and to this is secured by screws 15 a bracket 16 the lower end ot which rests upon a shoulder 17 termed in the said pillar. The bracket carries a horizontal trame arm 18, which is semi-circular in cross section as shown vin Fig. t?, to give rigidity' to the member Which supported at one end only by the bracket 16. iflxtending horizontally orwardfrom said trame arm 1S near each end are duplicate arms 1) which support a transverse cha acter bar 20. This bar is provided with registcringslots 2l alongits front margin and upon the upper surface adjacentto said slots are impressed a series of characters 22 disposed in two lines one above the other except where the characters represent the letters ot' the alphabet, when one character will stand tor both upper and lowercase letters.

A type-bar frame 23 has rearwardly projectingr arms 24 which are pivoted to the extremities of the frame arm 18 by sh0ul The said frame23 is held in its initial position by a spring Wire 26 having a portion of its length coiled about the body ot ashouldered screw 27 which passes through an adjusting plate 28 and .engages a threaded hole in the frame arm 18. Said plate is furnished with an ear 29 which engages the fixed end of the spring 26. The shoulder of the screw 27 holds the .plate from turning and when said screw is loosened it permits the said plate to be turned on its center 27 by means of a handle 31 so that the resiliency of said spring 26 may be increased or diminishedat will. The end 32 of the sprirfg` is received rina notch 33 in the underside of the type bar frame. The transverse portion of said frame 23 isV Ll-shaped in cross section and open at the,

end by gudgeons 37 which are journaled in brackets 3S secured to the under side of said sliding plate byscrews Si). 4G. -Upon the under surface of said type bar and formed integral therewith are the printing characstops 42 which permit the bar to oscillate in either direction to a sufficientextent to bring'thelines of printing type alternately into a position vertically below the said centers. -t tension spring 43 is suspended at i its upper end to a yoke 45 secured by the screw 40. to the plate the lower endv of sald spring being attached to' a radially extending arm 46`rigidly fixed to one of the bearings 37 ofthe type-bar. The upper end of said spring is located directly over the center of oscillation of said bar, as'shown in Fig.7. The positions of the spring at tachrncnts relative to the limitations imposed by said stops 42 are.such that when either of the stops engages 'the underside of the plate the spring 43 will make traction upon that side ot' the center of oscillation and tend to hold the bar in the position then occupied, one of the lines of type being in the printing position which is shown, at a .Fig. 7 directly beneath the center of oscillation. Wvhen th'etype bar is rocked so that the other stop is against the plate 35 bringing the second line of type into the printing position, the lower end of the spring 43 will swing past the center and exert tension from the opposite side holding the parts in their `5 relative position until the bar is again rocked upon its centers. The means employed for rocking the type bar to shift the position of the lines of type consists of two ke s 47, 48, their stems 49 passing through ho es in the plate 35. bent at a right angle and engage holes in the ends of pins 5() projecting from the opposite i sides of the type-bar. One of said keys is normally u'p when the other is down, and to shift the bar itl is only necessary to depress the key which is elevated. Upon the upper surface of said type-barplate is secured an operating key 5l fastened to said plate by screws 52. This key is provided witha cap 53 from the rear of which projects a guide finger 54 having its lower margin wedge shaped to insure its entering the proper slot when the key is depressed as hereinafter described. From the front of'said key is a handle 55 which is grasped by the fingers when the key is operated.

A paper carriage is arranged transversely to the type-bar frame and is composed of a base plate 56 having end plates 5T formed l 62, 63, which project vertically `from the bed p plate l2 and has a' sliding fit therein, a collar i The lower ends of thestems arelv torni. consisting of a rubber roller64 mountj ed upon a shat't 65 is journaled in the end plates 57. the forward end projecting f through thebearing plate' 57 and carrying l upon its extremity a thumb wheel G6 provided with a sleeve (37, the inner end of which carries a line-spacing ratchet G8. lie 4tween said ratchet and the bearing plate 57 is located a pawl plate tif) carrying a pawl tooth 7() which is adapted to engage the teeth of said ratchet (38. The pawl tooth is held in engagement with the ratchet by a spring '7l attached at one end to an arm 72 extending from the pawl-plate (it), andat the other is secured to the carriage base at 73. The pawl plate has a line spacing lever 74 by means of which it can be rocked upon the shaft 65, and is provided with a slot where'the said shaft pierces it, to allow the g pawl tooth to ride over the ratchet teeth g when retracted by its spring. The rotation of said plate is limited by a stop pin 76 against which the arm 72 is held when the plate' is in its normal position. said pin engaging a shoulder 77 at the base of the arm 74, when the latter is depressed, thus preventing the pawl from turning the platen farther than desired.

sheet ot' metal is secured at one edge to the upper surface of the base plate 5o by rivets 7S), and passing beneath the platen is curved upward and partly around the platen. its f free margin 80 lying closely against the face of the platen upon' which it exerts sutii'cient force to produce some tension for the paper which is inserted between the platen and parallel with the platen and lies in contact therewith, and each end is bent downward at a right angle as indicated at 82. and the g extremities 83- bent in o posite directions to i he inserted in lugs 84 died to the carriage position against the face of the platen by a locking lever 85 pivoted on the shaft 65 and furnished with a li 86 which en ages the rod when in its initial position. l hefn it is desired vto insert a `sheet of paper the lever 85 lifted until the rod 1s released and turned awayy from the' platen and the forward edge of the paper inserted beneath. t The rod is then replaced and locked in position by the said lever.

The carriage base plate 5G has a down turned flange 87 along its outer margin and l this flange and the lower edge of the ratchet plate 58 form guide ways which rest upon rollers 88. which project slightly above the upper surface ofthe bed plate through openings 89 therein, and are pivoted to brackets l 5)() by means of screws 91. A scale bar 92 is attach'ed to the side of the ratchet plate 58, the graduations 93 of the scale correspond 55 60'L serving as a stop. .t platen of the usual i ing with the ratchet teeth. To the lug 62 is y base plate 5G. The -said rod is held in initial l A paper tension dip 78 vformed of a thin i said tension plate. A guide rod 8l'is placed tired an indexY finger 94C tor the purpose Ot' locatingr the ,arriage relatively to the printing` point..

The under sidc ot' the type-bar frame Q3 is provided with a depending-lug 95 and directly beneath this lu` is located a spacing lever 00 the lower end ot which is attached to the middle ot a vertical arm 1)? one end ot which projects through a slot 98 in the bed plate 12 and is pivoted to a tlange 91) by a `shouldered screw 100 upon which said arm and attached lever rock. The said spacing` lever is maintaiued'in an extended position by a spring 101 which is attached at one end to the upper end otl the arm 0T, and at the other to a fixed point on the. bed plate. The tree end ot the lever 11G is provided with a linger plate 102 and the downward movement ot s:,1id.lever is limited by a stop finger 103 which strikes the bc'd plate 12; A spacing pawl arm 10sL is pivoted to the upper end of the lever arm 0T by a pivot screw 105 and has a finger plate 100 at the free end. Projecting from said arm is a pawl tooth .107 adapted to engage Yhc ratchet teeth 58a, and upon the opposite side is a projecting lng 10S which engages the inclined upper margin 109 ot notch 11() formed in a Jost. 111 secured at 112.110 the flange '951. i Then in the position shown in Fig. 0 the pawl arm 10-1 is locked down by the said engagement. ot' its lug .108 with the inclined edge 109. The said lug also forms a stop torrthe lever 9o in its rearward movement. By depressing` the said lever either by the ting-er or the action ot' the lug' when the type bar trame is moved downward as hereinafter described,

the center 105 will be 'carried forward slitticiently to release the lug,- 10S and permit the pawl tooth 10T to ride over the teeth ot the ratchet plate aslthe pawl arm is moved torward in unison with the arm 97.

The lower part of the type-bar Jframe is provided with an opening 23 directly over the platen to expose the type to t-hc action ot' an inking` roller 113 con'iposed of a suit,- able tibrous or absorbent material saturated with an ink adapted to the purpose, an anilin ink being tonnd satisfactory. This ink roller is mounted to rotate on an arbor 114 carried on the end ot' a lever 115 pivoted by a shouldered screw 11G to the upper end of a rock arm 11T journaled on a stud screw 118 cnaginga post 115) fixed to thebedplate 12. 'lhe said lever 115 is held in an extended position by a spring 120, coiled about the screw 116, its free end engaging said lever 115. The rock arm 117 is operatively connected with the lug 95 by a link 121 tornied of a rigid wire furnished with a ring at the upper end which engages a shouldered screw 122 inserted in saidlug 95, its other end 123 being bent at a rrght angle -to pase through a hole in a lug 124 pivoted tothe rock arm 1.17.

A signal bell 125 is 'conveniently 'located near the rear of the plate 12 and is provided with a hammer 12Gfpivoted to the bed plate at 12T and is'held ina retracted position by a spring 19,8. i

To the outer snrt'ace ot the ratchet plate 5S is attached a gravity bell trip 12S) which swings on a pivot 130, and rests ,against a stop pin 131. As the carriage is moved rearwardly the lower end 132 of the said trip will engage the heel 133 of the hammer lever and cause thelat-ter to strike the bell when released as the carriage passes on. lVhen the carriage is returned the trip will yield on its center 1230 to permit the end to pass over said heel.

The operation of the machine is as tollows:-l`he ink roller having been supplied with a Aproper quantity of ink and a sheet-of paper insert-ed between the platen and tension plate and carried under the giiide rod,

.the latter is locked against the platen by the lever 85. The operator then grasps the operating key F1 and moves said key and attached type-bar laterally until the guideiinger 5lis approximately above the recess in the character bar 20 corresponding with the cha acter which it is desired to print, He then depresscs the key carryingthe type bar and frame downward until the type strikes the paper against the platen. relaxing the pressure hc permitsthe spring .20 to vrestore the said trame and type barto the initial position. The bar is then moved laterally by means ot the operating key until another character is selected and printed by depressing the key; andthis process is repeated until the alarm bell gives warning that the end ot the line is reached. The carriage movement is controlled'by the lever 9G, the depression ot which carries the pawl arm 10-1 toi-ward to engage a new notch, the tension ot' the spring 101 being sufficient to re` store thelever 91S and attached' arm 104 to theirinitial positions and at the saine time mov' the carriage. one step toward the rear.

The lever 90 may be depressed by the finger, which is'the method employed to space between words or when no print is required and is always automati :ally depressed whenever the key 51 operated, by theengagement therewith ot the pendent lug,` 95. The automatic movements which take place when the operating key 51'is depressed are asljfollows: The tirst e tert of the downward move-- v ment of the type bar carnage is to throw the inkinglever and roller to the 'left to leave a clear space for 'the impression to be `made upon the paper. This is done by the action of the link 121. which carries the rock larm 11? and attached lever 115 to the lett, the

ink roller being then entirely out ot' the way by the time the type bar carriage is depressed to the printing plaine. .At the same time the lug 95 engages the spacing lever fifi, causing the arm f l't' to rock on its center pressed to release the lugltl and the pawl lever 104 lifted out of engagement with the fi. ln a type-writing machine, including a paper carriage and inking mechanism, the comliination with a base and a standard thereon` of a bracket removably attached to said standard, a frame-arm rigidly secured at one end to the bracket, an oscillating I frame pivoted to said arm, a spring for sai ratchet, thus leaving the carriage free to be moved either' forward or back with the other hand so long as the pawl arm is kept elevated. When one line is finished the operalor turns the platen by the line siacing lever 74 to feed the pape', a single epresl `sion acting upon one tooth to give one space,

and when more space is required between the lines the lever given the required number of dei'iressions or the platen can be turned indefinitely, and may be used to' feed the paper, for line spacing or to remove it from the roller.

It is obvious that man v changes may be l made in the devices of my invention as herein` disclosed without departing from the spirit and scopethereof, and l do not wish, therefore, to be limited to the precise construction set forth.

Ilaving thus described my invention I claim 1. ln a typewriting machine, including a papel' carriage and inking mechanism, the combination with a base and a pillar thereon, of a bracket removably secured to the pillar, a frame-arm rigidly` attached at one end to said bracket, an oscillating frameA fraaie, means for adjusting said spiiing, said means comprising a clam ing screw, a plate 'pivoted on said screw, an a'lug on said plate engagingsaid spring, a type-bar plate slidably mounted in said oseillatin frame, type-bar pivotally mounted on said type-bar plate, means for rocking said bar 'on its pivots, said rocking means eomprisin lugs extending laterally from oppositesi es of the said bar, keys pivotally attached to-said lugs, a stop carried by said bar and adapted to limit the movement of the bar in 0th directions upon its centers, and means for yieldingly locking said bar at either liniit of its movement.

4. In a type-writing machine including n.

f paper carriageand inking mechanism, the combination with aibase and aillar thereon,

pivoted to said fraine-arm, a spring urging said oscillating frame to its initial position,

adjusting means for the spring, a type-bai' plate slidablyY mounted in said oscillatingf of a bracket secured to the. pillar, a horiframe, a type-bar carried by said type-bar plate and pivoted to rock relatively thereto, the bracket, rigid arms extending horizonv tally from the said. fraine-n'iember, a characY and means for rocking said type-bar, said means comprising keys pivotally attached upon opposite sides of said bar.

.2. In a t`vpewriting machine, includingr a paper carriage and inking -inechanism, the combination with. a

rui'cd at onel end to the bracket, an oscillating frame pivoted to said frame-member, a spring urging said frame to its initial position, means for adjusting said spring, said means con'ipiising a plate pivotally mounted upon said lframe ai'in and engaging the base and a standard thereon, of a bracket removably attached to E 'the standard, a frame-member rigidly se of a. bracket removably secure to the pillar, a frame-arm rigidly attached at one end to said bracket,- an oscillating frame ivoted to said frame-arm, a spring attache t0 the.

frame-arm and urging said oscillating frame to its initial position, means for adjusting said`spring, said means consisting of aplate and engaging the spring,av"typebar plate slidably mounted in said oscillating frame, a type-bar pivoted on the type-bar plate and provided with two lines of type,-. means for rocking said bar to bring it successively into each of its printing positions, and resilient means for locking the bar in either of said positions.

5. In a type-writing machine, the combination with a base, and a pillar thereon,

zontal frame-member secured at one end to ter bar supported thereon, a comb formed integral with said bar, an oscillating frame pivoted to said frame member, a sprin urging said oscillating fr'ame to its initia position, means for adjusting said's ring, said f means consisting of a late pivotal y mounted spring, a type-bar plate slidably mounted in i said oscillating frame. a type-bar pivotally i mounted on said type-har plate, means for l rorking'said bar, and a stop carried by said bar and adapted toliniit. the movementy of said bar in both directions upon its centers.

upon said frame mem r, a lug on said late engaging the spring` and means for loc ing said plate in adjusted position, a type-bar plate slidably mounted in said oscillating' frame,.a t ype-bar pivoted on' the ty -bar plate and provided with two lines o type, means for rocking said bar to bring each line of type successively into printing position, and means for locking the bar in either of its prin'ting positions.

6. In a type-writing machine, the combination with a base, and a pillar thereon,

, adjustably mountedA upon said-framaarm of a bi'zuket secured to the pillar, u horizontal fiuine-member secured ut one end to the luu'elzet, rigid :mus extending horizontally from the said ilumine-member, u character bur supported thereon, u Comb foi-med integral with' said im', au oscillating iframe piwued to said fi'nuie member, :1 spiing urging` huid oecillutiug 'frzuue to its initial position, menus for adjusting said Spring, Said menus consietiug of ai plate pivotally mounted upou Suid :frame member, u lug' ou said plate engagii'ig the spring, and means for locking the plate in adjusted position, a,

typefbai plate slidably mounted in Said oscillating frame, :i type-bur plvoted on the type-bnr plate and provided with two lines of typgiiienus for rocking said bar to bring each line of type successively into printing position, Suid means consisting of individual keys mounted in the Lype-bar'plate und pia# oted to the type-bur uwe oppoeite Sides of its axis, und resilient means for looking' the bar in either oi" .its pi'intiiig'g positions.

In testimony whereof l ao; my signature 1u presence ot two witnesses.

LEVI J. )DELL \Vitnesses:

F. BENJAMIN, u l. M. CORNWALL.

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