US904155A - Type-writing machine. - Google Patents

Description

G, A. SEIB. TYPE WRITING MACHINE.

APPLICATION FILED my a, 1906.

Patented Nov. 17,1908.

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G. A. SEIB.

TYPE WRITING MACHINE.

APPLIQATION FILED MAY 8, 1906.

904; 1 55; Patented Nov. 17, 1908.

3 SHEETS-SHEET 2.

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. @W 14:5 ATTORNEY G; A. SEIB. TYPE WRITING MACHINE.

APPLICATION FILED MAY 8, 1906.

Patnted Nov. 17, 1908.

3 SHEETS-SHEET 3.

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GEORGE A. SEIB, OF SYRACUSE, NEW YORK, ASSIGNOR TO THEMONARCH TYPEWRITER COMPANY, OF SYRACUSE,-NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent. Application filed May s, 1906. Serial No. 315,850.

Patented Nov. 17, 1908.

To all whom it may concern:

Be it known that I, GEORGE A. SEIB, a citizen of the United States, and resident of pinion normally meshing but being adapted to be separated to release or free the car riage, it sometimes happens, as for example when the carriage is being back spaced or moved in reverse direction a letter space dis- 'tance at a time, that said carriage is moved so quickly that its momentum overcomes the .tension of the spring or springs which are usually employed to maintain the carriage operatively connected with its letter space feeding mechanism. Consequently the parts separate or jump out of engagement and thus allow the carriage to move more than the desired distance.

One object of the invention is to prevent the separation of the carriage from its stepby-step feeding mechanism when such separation is not desired. In the present instance this object is carried out by providing afeed rack which is pivoted on the carriage with a locking latch which locks the rack normally in en agement with a feed pinion which is one of the elements of the step-by-- step or letter space feeding mechanism. Said latch is adapted to be automatically unlocked when it is desired to release the carriage from its step-by-step feeding mechanism, as for example, whenlthe carrla 'e release key is operated or when the tabu ating devices are operated.

- .Another'object of the invention is to provide improved means for back spacing the carriage.

Another object is' to provide an improved means for adjusting themrriage feed rack relatively to the carriage.

Other objects will subsequentlv. appear. To the above and.other ends, the invention consists in the features of construction, combinations of devices and arrangements of parts to be hereinafter fully described and particularly pointed out in the claims.

One form of the invention is illustrated in the accompanying drawings, wherein Figure 1 is a vertical front to rear. sectional view of so much of a typewriting machine as is necessary to a clear understanding of the invention. Fig. 2 is a rear elevation of the machine, parts being broken away and parts being omitted. Fig. 3 is a fragmentary full sized top. plan view partly in section of part of the carriageand carriage feeding mechanism, showing my invention applied thereto. Fig. 1 is a rear elevation of part of the back spacing mechanism, the top plate of the machine being shown in section. Fig. 5 is a view corresponding to Fig. 4 but showing some of'the parts in different relations from those in which they appear in said Fig. 4. Fig. 6 is an enlarged transverse central sectional view of the escapement wheel, back spacing wheel and their associate devices. Fig. 7 is a sectional view taken on a plane represented by the line ww in Fig. 6 and looking in the direction of the arrows at said line. Fig. 8 is an enlarged fragmentary rear view showing part of the escapement wheel and the normally engaged escapement dog, which dog carries a back stop, said back stop being shown in o erative position. Fig. 9 is a full sized ragmentary rear elevation showing part ofthe feed rack, the feed rack lock being shown just after it has been moved to inoperative position. In this figute the feed pinion shaft and its bearing are shown in'sectibn for the sake of clearness. Fig. 10 is a View corresponding to Fig. 9 but showing some of the parts in difierent relations from those in which they appear in said Fig. 9. Fig. 11 is an enlarged tragmentransverse sectional view showing the tary rack, the feed rack lock and the assofeed oiate parts. Fig. 12 is a view corresponding to Fig. 11 but showing a modified form of some of the parts.

'I have shown my invention as applied to a machine generally resembling that commercially known as the Monarch typewriter,

but. it is to be understood that the nature of the invention is such that it may be readilyadapted to other forms of writing machines.

- sub-lever is slotted at 9-to.co o'perate with a '10 tion it'is immateria adapted to cotiperate with the front face of' a; rotary platen 17,;said platen being jour- 'naled in sidebars 18 projectingfforwardly gro n op' osite ends of a rear bar 19, said side ars an Referring now more especially to Figs. 1 and 2 of the drawings, the main frame of the machine is shown as comprising a base l, corner posts 2 and a top plate Key levers 4 are fulcrumed on a fulcrum plate 5-mount ed in the'rear of the base, each "key lever being provided with a restoring spring 6 andhaving pivoted to it at 7 a sub-lever 8. Each fixed abutment -10 and is-connected at its upper end by a'link 11 with a type bar 12 pivotally connected with a type bar hanger 13, said hanger being secured by a screw 14 to a vertically disposed segmental type bar 1purposes of this invenwhether or not said support 15. For the rear bar constitutinga platen carrier or carriage. The top and bottom faces of the rearbar are groovedlongitudinally to coiiperate withanti-friction balls 20, the

balls also cotiperating with stationary grooved guide rails 21 which are secured by screws 22- to curved standards or brackets 23 rising from the top plate. Bearing lugs 24 project inwardly. from the rear. of each side arm of the, platen .carriage, as best shown in Fig. 3. Said lugs are formed with bearing" openings which receive bearing -'*sle eves.25, presently to be more fully described.

' .Ea'ch sleeve receives and pivotally supports at its inner end a pivot pin, 26 provided with a flange 27. Each flange is adapted to abut against the inner end of the associate sleeve at one side, said sleeve serving thereby to-limit the a'xialinward movement of'the pivot pin 26. At its other side each flange 27 cooperates with a rack supporting; arm 28. As will be understood from a con sideration of Fig. 3, the forward end of each arm 28 is'p'erforated and-is mounted on the inner end of the pivot pin 26, which end is .thereafter spread or up-settforcing the arm 28 against the associate collar 27, the construction being such that the arm is thereafter maintained in a fixed relation with-its associate pivot pin 26. The rearends of the arms 28 are bent inwardly towards each= other and the bent portions 29having secured't-o them by screws 30 a carriage feed rack 31. The feed rack, as shown in Fig. 1,

' normally meshes with a feed pinion 32 which -is fixed at, the forward end of a shaft 33,

formed iris brae'itet 34 -to the topplate.

I A'circular feed rack or escapement wheel 35 is loosely mounted on the rear end portion jecting huh 36 which surrounds the shaft 33 in turn' has a. bearing -in the supporting ofthe shaft 33, said escapement wheel, as shown in Fig. 6, having a'forwardly pro-- and serves as a bearing therefor, and which bracket 34. The esca ement wheel 35 is provided with periphera teeth 37 and has suitablys'ecured to its rear face, as by rivets 38,-

a small ratchet wheel 39 (Figs. 6 and 7).

A housing or cover-4O surrounds the ratchet.

at 44 to said housing and is pressed mto en- I gagement with the ratchet wheel 39 by a leaf spring 45, said leaf spring being secured by a rivet 46to the inner wall of the housing shaft is turned in letter space direction, indicated by the arrow in Fig. 7, the escapement wheel35 is caused" to turn with said shaft 40. The construction-is such that when'the T by reason of the engagement of the pawl'43 Y with theratchet wheel 39, but when-the cars niage is retracted and the shaft is turn'ed in the opposite direction, the pawl 43 is adapted to slide over the teeth of-the ratchet wheel 39 and arelative turning movement between the" shaft 33 and the escapement wheel 35 may be eflected. I

Fixedly secure the shaft 33 is a toothed back space wheel. ,In the present instanceI haveipreferred to provide such a ratchet wheel by forming the periphery of the housing 40 with teeth 47. By this construction the housing 40 not only serves its original purpose but also performs the functions of aback-space wheel which is cotiperative with other back spacing devices presently to be described to effect a stepJoystep movement of thefca rriage backwardly stepfeeding movement thereof. Normally engaging one or another of the teeth 37 of 'mounted at 49 near the top of the upright arm 50 of a vibratory dog carrier or rocker 51, said dog carrier, asclearlyshown in Fig. 2, being pivoted at its v'en'ds onscrew pivots 52 which are supported in ,a bracket 53 depending from the top plate. The dog' 48 is best shown in Fig. 8. I Said dog is provided with'an individual dog spring .54 whichconstantly tends to press said dog away from the face of the rocker arm 50or towards the ri ht in Fig. 8. A, back stop 55 is prefer-.

abily mounted on the dog 48 and is adapted to cooperate with the backs of the teeth 37 of the escapement wheel to prevent excessive reverse turning movement of said escapement wheel, said back stop operating for this.

d to the rear end portion of or in an oppositejdirection to the step-by-- the escapement'whe'el35 is a dog 48 pivotally v The operative position of the back stop shown in Fig. 8, but it willbe understood that normally said stop is maintained out of the path of theteeth of the escapement -wheel, as shown in Fig. 2. A second dog 56,

is mounted at the top of the dog; rocker and is adapted to cotiperate with the escapement wheel, said dog in the present instance being shown secured in a fixed relation with the rocker arm 50. A horizontally disposed arm 57 projects forwardly from the dog rocker 51 and is connected by a link 58 to an arm 59 of a universal bar frame pivoted at 60 at the sides of the base 1 and carrying a universal bar 61. Said universal bar extends from side to side of the machine beneath the series of character key levers 4 and the space levers (not shown). When any key lever 4; is actuated the associate type bar is caused to coiiperate with the platen in a known manner andthe dogs 48 and 56 coiiperate with the escapement wheel to permit the carriage to be drawn a letter space distance towards'tl' e right under the influence of a carriage spring drum 62 pivoted at 63 to the bracket 53 and connected by a band or strap 64'with a pin 65 depending from the rear bar 19 of the platen carrier or carriage.

Sometimes it is desirable to move the car riage a letter space distance at a time in reverse direction, that is, .in a direction opposite to that of the letter space feed movement. To accomplish this result I provide mechanism now to be described.

Referring more especially to Figs. 1, 2, 4 and 5, 66 represents a pawl pivoted at 67 to the left-hand arm (considered from the front of the machine) of a horizontally disposedllever68 of the first order, said leverbeingpiv'oted at 69 .to a'lug70' depending from the top plate 3. The pawl 66 is provided with atail portion 71', said tail portion being normally maintained in engagement with a fixed stop by a C-shaped spring 72, said sprihgbeing secured to the lever 68 at one end by a screw 72 and hearing at its free end against the tail of the pawl. In the present instance a part of the under side of the top plate serves as a stop with which the tail of the awl is normally maintained in engagement y the spring 7 2, as shown in Fig. 2. I From an inspection of this figure it will be noted that normally the awl 66 is disengaged from the teeth 47 o the back space wheel or housing 40. The left-hand arm ofthe-pawl supporting and actuating lever 68- is provided with a sto portion 73 which is normally maintaine with a fixed stop, a part of the under side of the top plate serving in the present instance as such fixed stop. The right hand arm of the lever 68 ,(when viewed from the front -77 is actuated, the rear arm of the lever plate and space key in contact of the machine) is connected by a vertically disposed link 74 with a key lever 7 5 pivoted at 7'5 intermediate its ends (Fig. 1) to a lug 76 (Fig. 2) projecting laterally inward from the right-hand side of the base. Said key lever is rovided with a key button or cap 7 7 and w1th a restoring spring 7 8 which is coiled around the supporting-lug 6 and serves to restore the key lever to normal position and to normally maintain the stop portion 73 ofthe lever 68 in contact with the top plate as illustrated in Fig. 2.

Referring now to the operation of the back spacing mechanism, when the back space key 75 will be elevated, raisin the link 74 and the right-hand arm of the iver 6S and lowering the left-hand arm of said lever about the pivot 69. During the first part of the downward movement of the left-hand lever arm the tail 71 of the back space pawl will be maintained in contact with the top plate by the spring 72, the result being that the pawl will be turned on its pivot until said pawl enga es with the teeth fl? of the back space wheel 40. Fig. 4 illustrates the position of the awl 66 at this stage.

W hen the pawl 66 has been turned on its pivot 67 so as to fully engage with the back space wheel 40 further inward pivotal movement of the pawl will be prevented and as the downward movement of the left-hand lever arm of the lever 68 is continued the pawl as a whole will move down with said lever arm, and because of the engagement of said pawl with the back space wheel will turn said back space wheel in the direction of the arrow in Fig. {l and from the position illustrated in said figure to that shown in Fig. 5 when the right-hand end of the lever 68 will be brought into contact with the top the lever will be held from further; movement in this direction. space wheel,'it will be recalled. is fixedly connected with the shaft 33, so that during this turning movement the shaft will be turned with. the back space wheel, and the pawl 43 will slide over a tooth of the ratchet wheel 39 and engage behind said tooth, thus holding the back spacing wheel and the parts controlled -thereby-in the positions to which they have been moved. The shaft 33 is connected through the pinion 39. and rack 31' with the carriage and consequently'the carriage will be moved in reverse-direction, the parts; being so proportioned and arranged that at each actuation of the, back 77 the extent of the backward movement of the carriage amountsto' one letter space. When the back space key is released the key lever 75, link 74 and lever 68 will be restored to normal p'osition by means of the spring 78. During the latter part of the return movem'entof the lever 68 the tail 7] of the back space pawl will re- The back &

engage with the under side of the top plate,

and thereafter during the remainder of the escapement wheel'during the initial part of each back space movement, said Wheel will turn slightly in reverse direction, both be cause of the friction ofthe -p'awl"43' on the ratchet wheel 39 andialso because" of the pressure of'the' dgg'springifi l om the teeth; 37 of said escapementwheel, very slight 1 reversemovement ofsaid escaper nentwheel,-

' however, suflices' to -bring-..-the back] stop v 5 5,

into operative'position, as shown-,in;Fig 8,

thereby preventing further-f er said escapement wheel: in reverse direction and holding it motionless-during the; remainder of the back space turning movement'of the" other parts."

It will beno'tdltha in aft-Qantas 4 is separably or-jdetachably connected-with its escapement' niechanism by -;means of the" rack 31- and inion32. :'Onei'ormoresprings are commo y employed. inaiiu tain these two parts .in mesh and iinjjthe fpl fesent', in-g' stance such a springisfpreferabb' used, being bar '19 of the carriage. Prior to my present invention, however, in machines employing separable spring pressed connection be- I tween the carriage and-its letters space feed-. ing devices it has sometimes happened that shown in Figs. 2 and'3 and indicated'bythe numeral-79. The spring7 9sas herein'shown.

is a flat spring, oneend; of fit being secured by screwsto the carri'a crack filand'the other or free [end of it a'utting against a' lug 81 projecting rearwardly from the rear thejback spacing devices have been operated withso much force that the carriage acquires enough momentum to overcome the tension of the spring connecting it' with theletter,

rack will be forced out ofengagement with- 55 space feeding devices so that the I carriage the'jfeed-pinion and vwill allow the carriage toz m trvetwo or more letterspacedistances instead of one in backwardfdirectiom V I I, v ZIhe angle'at which the teeth of the rack "and pinion'fengage with 'each' other is condame to, this separation or disengagement as will be clearly understood from an inspec- 'tion of '2 and 9; In 'order to prevent this displacement of the parts and the con:

sequent improper backward spacing movement of the carriage, I have provided means which has been described above thejcarriage' for locking'the carriage feedrack and the feed pinion together or in mesh, so. asto maintain them positively engaged during'the operation of the back spacing devices. In the present instance I have shown said locking means as normally operative and have provided means forunlocking said locking means when the carriage is tobe freed or released from its step-by-st'ep feeding mechanism, as, for example, when the'carriage release key is operated or when the tabulating devicesare operated. It is to be un- Vderstood, however, that the desired result,

-which,' broadly stated, isthe provision of means for locking the-carriage to its stepby-step feeding mechanism at one time and for unlockingsaid carriage from its step-bystep feeding mechanismat another time so as to enable said carriage to be freed. or re: leased at will from said mechanism, may-be accomplished in a variety of ways of which the one shown herein and now to be described is an example.

A locking member or one; shouldered screw 83 whfich -is threaded into the lu'g'or boss 81 projecting from the rear' bar, of the carriage. As -most clearly "appears Figs. 1 and 1 1 the lock or latch '82is.disposed directly abovethe carriage 9'5 lockin fac e 84, which, as shown in Fig. 2-, 'norma y c'oeperates with the top or"abutment 85 fixed to and.pro ecting v'erftically upward from thetop of the feed I fe'ed rack 31.. The latch is formed with 'a rack 31. By the construction thus far described it will be seen thatth'e feed rack is prevented from; swinging on its pivots 26 and is' normally maintained and positively connected to or'locked in mesh with the feed pinion 31.. Consequentlyduring the letter space feeding movemen or during step,-by-

1at'ch82 is it-627T of a pin step back spacing movements of the cara riage; the latter will belocked to or'posij tively connected -.,with its letter-space feed-' in or escapement mechanism. In order to ock the positive connection so as to enablethe carriage to be freed or released from;

.its step-by-step feeding mechanismfI'prQ- vide a bar 86; that extends forthe greater part of its length parallel with the rack and at ftherear thereof. The end portions of said her, as best shown in Fig. 3, are offset rearward1y. and are fixedly connected by 'head'ed screws 87 with angular arms 88., said arms being suitably secured as by soldering in a-fixed relation-with the associatebean in sleevesj25. :7, Each-bearing sleeve is provi ed with a flange 25 'which is arranged. 4 between the bearing lug 24; andthe forward v end of: the arm 88 and serves to maintain the arm separated from-the. inner face of the l bearing lug so as ,to'avoid friction thereom-J The outer end portion of. each bearing sleeve is reduced to receive a release lever 89 I.

-which is maintained in fixed relation-with the sleeve by a'headed screw 90 which takes into a threaded opening in the end' of the sleeve and the release lever is clamped between the head of the screw and the shoul der formed by reducing the end of the sleeve so that when said lever is operated by the usual key or finger piece 91 at its forward end the sleeve is caused to turn with it, acting through the arms 88 tolift the bar 86.

The bar .86 and the arms 88 to which it is.

carriage rack 31 is provided with a rear- .wardly extending horizontal pin or lug 95' 5 which passes through a perforation or open- "-ing 96 in the bar 86. The opening 96 is of considerably greater diameter than the pin 95 so astoa-llow relative movement between the bar 86 and carriage rack. Normally the bar 86 lies in the position shown in Fig.2 with the upper edge of the hole or opening 96 resting against the pin 95.

As will be seen from an inspection of Fig.

2' the pin 94 is normally near the righthand 5 end (considered from. the rear) of the slot 93. When either of the release keys 91 is actuated the bar 86 will swing upwardly as has been described, but during the first part of 'tsupward movement will not affect the 4 carriage feed .rack 31, because of the lost motion connection between 'the two pro-' vided by the pin 95 and opening 96- In other words, the bar 86 will move upwardly and the top of the opening 96 will move away from the pin 95, which pin together with the carriage 85 will remain quiescent until the lower'e ge of the opening engages with the pin 95, asindicated in Fig. 9. From an inspection of-the latter figure and a comparison of it with Fig. part of the upward movement of the bar 86 the pin 94 will be moved away from the end of the slot93 and towards the middle thereof, cnnsingthe latch 82 tobe swung about its pivot v 83 to the left (as viewed in Fig. 9), and so as to disengage the locking face 84 of said latch from the top of the pin 85 with which it cooperates. Further depresco sion-of-a release-key 91' will cause the bar -86 to (be swung upward from the position indicated -.i 9 to that indicated in I Fig-10, excessive upward movement being checked-by the engagement of the top of c; thepiuSbwith the circular rim of the latch from its step by step feed rack 31 and the in 2 it w'illbe seen that during this' Jacob Fe bel essary to an understanding of their operation 82. During the second part of the movement of the bar 86 the carriage feed rack. 31 will be moved with it by reason of the en'- gagement of the lower edge of the opening 96 with the pin 95, and will disengage from the feed pinion 32 so that the carriage will be released from its step-by-step feedin mechanism and may be moved freely by han in either direction. When the key 91 is released the bar 86 will swing downward and during the first part of its movement the feed rack 31 will move with it to reengage with the feed pinion. After this reengagement the carriage feed rack will be arrested and the bar 86 and the release keys will complete their downward movement until they geach the normal position indicated in 1g. v v It will be understood from an inspection of Fig. 3 that during the first part of the g5 upward movement of the bar 86 the sleeves 25 will turn-in the bearing lugs 24 and will turnaround the 'pivot pins 26 0f the feed rack 31 which pivot pins remain motionless, but after the feed rack has been taken up by the bar 86 the pivot pins 26 -will 'turn with the sleeves 25 during the remainder of the upward movement of the parts. The

reverse of this operation takes place during the downward movement of the parts. From 95 theconstruction as thus far described it will be understood that though the feed rack is normally maintained positively locked to or in mesh with the feed pinion, yet when one of the release keys is operated the locking connection betweenthe feed rack and pinion is' automatically unlocked so that the carriage is readily released from its step bystep feedin mechanism. 1 I

When ta ulating devices are employed in 5 connection with the typewriting machine it is, of course, necessary to release the carriage feeding mechanism when the tabulating devices'are operatedin order to bring about a cotiperation between the tabulator stops. When the separable parts of the.step-by-step feeding mechanism are normally looked as in the herein described form of my invention it is necessary to efiect an unlocking of the locking means for the step-by-step feedingmechanism when the tabulating devices are operated in order that they may be effective. The means for this purpose herein shown and now to be described are illustrated in combination with tabulatin devices which are the invention of (see his application Sr. No. 270.527, filed July 20th, 1905) and which will be described briefly and only so far as is necin connection with the rack lockingdevices which are part of the subject-matter of the,

present application.

Referring to Figs. 1 and 2, arms 97 extend horizontally fromthe rear bar 19 of the car- 130- riage,-:one atEeachside thereofff These arins I support a toothed stop bar 98, saidistop bar ir'eceiving. one. or ,more adjustable Y column =stps 99. It will-be seen thatthe curved standards .or brackets 23 that support the fixedoguide rails,21 are s'oshaped that the arms. 9-7, stop ,bar 98 and column stops 99 .tinaypmovle freely from s de to slde of the machineas the carriage is moved without :obstrhctimi. Cooperative with the column- -i. stops 99 are a set. of denomlnation stops,

;-said* stops being inthe .form

of 'pri ht levers 100 having forwardly curvedstopping .-.:portions 101, said levers being pivoted be; i I

or bracket ,103 suitably secured-to the ma tween their endsat 102 in a supporting frame,

w chine atzthe rear. Coiled sprin s10; co

{operate With-[the lower armso the ,stop ilev'ers" .100 to I maintain the stopping i stops. Operatiye on the end v-portion o f the portions lOlnormally outof thepathof the column lower arm of, each denomination stop lever 100.. is a slide bar 105 mountedto slide in provide bearings for rock .Fixed to eacl rock shaft is a Each rock. shaft has fixed wardly being disposed at therear of. and above the 4 2. .last bank of keys in the regular keyboard of the machine .and; the 'key levers 11 8f1which said tabulating keys .operatebeing guide, frame 106.

. .-It will be, understood-that whenian y 'tabiu lating'key is operated it turns its, rock shaft- .111, causing'the arm 1'12 fixed thereto to push vthe associate sli'deflbar:105 rearwardly, {said slide bar; actuating ohepf thedenomination levers 100' and swinging the lower arm of the r latter rearwardlyandthe upper armof the 11,50

latter forwardlyabout thepivo't 102 and bringing. the

stops 99. A uni-versalbar 11 7 5' operated .to actuate the carriage releasemechscribed. The universalbar1l7is mounted. in the supporting frame.or bracketil03, said .barhavingan arm 118 depending from itlat each end and each of said arms being A anism isarr'anged behind the flower arms of .the denomination stop lever-1s 100 in position to be'vactuated by eachof said lower arms when 1t as moved rearwardly as. just depivoted as indicated at 119411 the supporting frame 103. Extending forwardly from the righthand arm 118 is a horizontal arm 120 pro vided with a lateral pin 121 which pin coa ui n; a guide plate 115 fixedby screws lldto' the stopportion lOl into the path of the column operates with the forked lower endof a Ver tlcall'y disposed link .122op erating to raise said. linkfivhentheuniversal bar 117 is ac tuated.

The upper end of the link 122' is detachably connected witha lever 123 pivoted at itsllght-handiendat,l2et" a lu 125 depending from thetop platef The eft-hand end of thelexierl2-3 or as viewed from the .rear of the machineitsrightdiand end) has pivotally connected to it at 126 a lifting member 127, said member being bifurcated at it s upper end portio'mthe arms-128 of the bifurcation embracingthe bearing bracket 34 and being slidable 1n guide groovestherein asindi'catedin Figs. 9 and 10.

J: ns best shown in Figs. 1' and 11 thetops of the'a rms'128 Ofitlle llft-lllg member are directly beneath the lower edge of the release hr 86 and'when the tabulat'or' key 11 1 1s operated the lever 123 is swung iip'ward about its pivotglraising the lifting member 121' and twa g" the armsto lift the bar 86. This bar with its supportmgarmsconst1- tutes, previously statedfa bail and when is raised the member or bail lifter 127 'it operate's in the manner previously ex plained in connection with-the operation of ;t he release keys 91. It is to be understood, of course, that during the operation of the release keys the bail lifter 12? remains inoperativef The manner ofjrele'asing the'latch 82 and, lifting the rack by the bar 86 having been explained at length, it ,isnot thought necessary to 'go into details conoerningthem at this stage. As has'beenstated, the first portion of the upward movement of the bar 86 swings the latch 82 to releasing position as shown in F 9 and-the further upward movementof the bar"86 carries 'with'it the carr age rack 31," causing the latter to separ'a'tefr'omthe pinion"32,' the latch 82, the

feed fraok andthe relea'sing bar returning to normal pos tion as previously explained and th e bail lifter12T,"'its actuating lever 128 andlink 122'beingrestoredjto normal position unde'r tlie'infi'uence of gravity;

In the. fconstruction just explained, the loweredge of the lifting bar 86 is on a level 4 'withfthe pointsof the teetho f the rack 31,

land the liftin'g' arms l28, during the first .par't of their upward movement; carry the flower-edge of 'the bar' 86 above the bottoms of the teeth of the rack 31 as shown in Fig. 9.

In Fig/12 I have'illustrateda modified con struction of rack lifter which necessitates a modification of the bar 86. In the'm'odified construction the arms 128 'at the top of the lifting mcmberare bei'i'tiforwardly and horizen tally to'prm'ide' lifting portions 128*, and

the lower edge of the lifting bar'f86 normally lies some distance below the 't'eeth'of the rack 31. lVhen this construction is-en ployed and any tabulating key is operated the lifting member is raised, causing'therear portions of the lifting shoes128 to raise the the level with the bottoms of the. rack teeth;

This first portion of the movement operates to release the latch 82. During further upward movement of the lifting shoes 128 they operate to raise not only the bar 86 but also the rack 31 until the latter is entirely disconnected from the pinion 32. 'ith this construction itis obvious that when the tabulatmg keys are operated the pin and slot connection 95-96 is not needed, but of course this connection must be retained for use in connection with the operation of the release key 91.

It will be apparent that I have provided a locking means which is normally operative to lock positivelyithe separable connection between the carriage and its step-by-step feeding mechanism but is automatically unlocked when the release keys or tabulator keys are operated; and that when my inven tion is employed and the back spacing devices are operated the separable connection is positively locked.

In order to facilitate the adjustment of the carriage rack relatively to the carriage in assembling the parts, I provide, as shown in Fig. 3, adjusting screws 125) which are supported in the rack arms or devices 28 and pass through openings 130 in the supporting armshh' of the lifting bar 86. The screws 12! are adjustable transversely of the rack arms 28 and their endsare adapted to abut against'the inner faces of the bearing lugs 21 of the carriage. Each screw is provided with a locking or check nut 131. The pivot pins 26 are movable in the bearing sleeves 25 in the direction of the axes of said pivot pins and the flanges '27 of the two pivot pins are spaced apart a less distance than are the inner ends of the two sleeves It will be apparent that by turning the screws 129 the 1 r pivotpms may be given movement in the swinging movement of the arms 28 without afl'ectingthe arms '88;

Various changes may be effected within the scope of-my invention and parts of it may be used without other parts;

What I claim as new and desire to secure by Letters Patent, is 1. In a type-writing machine, the combination of a carriage; ashaft normally operatively connected thereto; a toothed back space wheel mounted on said shaft; a back space pawl cooperative with said back space wheel; a hand actuated lever to which said tion of a carriage; a shaft normally operatively connected thereto; a toothed back space wheel mounted on said shaft; a back space pawl cooperative with said back space Y wheel; a lever of the first order fulcrumed on the machine frame, said pawl being pivoted to one arm of said lever; a key at the keyboard operatively connected with the other arm of said lever; a fixed stop with which .said lever normally cooperates; a fixed stop for said back space pawl; and a spring normally maintaining said pawl against its stop and separated from said back space wheel.

3. In a typewriting machine, the combination ofa carriage; stepby-step feeding mechanism therefor; means for at will releasing the carriage from-its step-by-step feeding mechanism at any desired point between the beginning and end of the travel of said carriage: and means for locking said step-by-step feeding mechanism in coiiperative relation with said carriage.

-l-. In a typcwriting machine, the combination of a carriage; step-by-step feeding mechanism therefor; means for at will releasing the carriage from its step-by-step feeding mechanism at any desired point between the beginning and end of the travel of said carriage; and means for locking said step-by-step feeding mechanism in cooperative relation with said carriage, said last named means comprising a locking member pivoted on the carriage.

5. In a typewriting machine, the combination of a carriage; step by step feeding mechanism therefor; means for at will releasing the carriage from its step-by-step feeding mechanism at any desired point between the beginning and end of the travel of said carriage; and means normally maintain-- ing a locked engagement between said stepby-step feeding mechanism and said carriage.

6. In a typewriting machine, the combina-' tion of a carriage; carriage feeding devices normally in cotiperative relation; means for at will disconnecting certain of said devices to release the carriage; means for automatically locking said disconnectible devices in operative relation; and means for releasing said locking means at any desired point between the beginning and end of the travel of said carriage.

7. In a typewriting machine, the combination of acarriage; carriage feeding ,devices normally incooperative relation; means for at will disconnecting certain of said devices will disconnecting said rack and pinion atany desired pointbetween the beginning and at any desired point between the beginning.

and'end ofthe travel of said carriage. 3

8. In a typewriting machine, the combination of a carriage; carriage feeding devices including a rack and pinion; means for at end of the travel of said carriage; and means for locking saidrack and pinion iii-mesh;

9. In a typewriting machine, the combination of a carr age; carriage-feeding devices including a rack and 'pinion'; -means for at will disconnecting'said'raek and pinion at any desired point between the beginning and 1 end of the travel of said carriage; means for automatically lockingsaid rack and pinion 111. mesh; andmeans for-automatically releasing the locking means whensaid disconnecting means-are actuated.

10. In a typewriting machine, the icombi nation'of a power-driven carriage; a feed rack connected thereto; step-by-step feeding devices for said carr age ncluding a feed pinion with which said rack normally Jv meshes means including a release key on the carriage for separating said rack and pinion to release said carriage .at any desired point between the beginning and end of the i travel of said carriage; and locking means devices for said carriage including a feed; V p

'- nation of a carriage; feed mechanism therebeginning and ends-of the'travel of said ear-v riage'; and automatic means fonrendermg. said lockingmeans inoperative during the T for preventing the separation of 1 said, rack and pinion.

11. In a typewi'itng-machine, the combination of a A power-driven carriage; a feed rack connected thereto; step-by-step' feeding devices forsaidcarriage including a feed pinion with which said 'rack normally meshes means' for at will separating said rack' and pinion to release the carriage at any desired point between the beginning and,

end of the travel-of said carriage; and means: normally locking said rack and pinion in.

engagement.-- v a '12. In a typewriting machine, the combi-.

nation ofa power-driven carriage; va feed rack connected thereto; step-by-step feeding pinion jwith which said a rack normally meshes; means normally 1ocking..said. r ack and p nion in engagement; means for at will separatin saidrack andipinion to release the carriage at any desired pointbetweenthe carriage releasing operation. 7

In a typewriting machine, combination of a power-driven carriage; a feedrack pivotally connected thereto; step-bystep feeding devices for said carria e including a feed pinion with which sai rack normally meshes; means for swinging said rackv on its pivots to release said carriage from its step-by-ste'p feeding devices a latch pivotally connected with said carriage and normally operative on said rack to maintain it locked in mesh with said feed pinion; and means for automatically swinging said latch to inoperative. position when the carriage is released. v

1 14. In, a typewriting machine,the combination of a power-driven cariage; a feed rack pivotally connected thereto; step-b"- step feeding devices for said carria e includingafeed pinion with whichsaid rack normally meshes; means for swinging said rack onits pivotsto, release said carriage from its step-by-4step teeding devices; a

latch pivotal-[y connected; with said carriage and normally operative, on said rack to maintain it locked in mesh with said feed pinion; a member pivotally connected with the carriage and operative t6 unlock said latch and to swing said rack to releasing position; and akey for'actuating said member.

15. Ina typewriting machine,-the combination of a power-driven carriage ;.a feed rack pivotally connected thereto; step-by- ,step'feeding devices for said carriage including a feed pinion with which said rack normally meshes; means for swinging said i aclron its pivots to release sa d carriage -from its step-by-step feeding devices; a

latch pivotally connected w ithsaid carriage andnormally operative on said rack to maintain it locked to said feed pinion; and a'keyactuated bail pivoted on said carriage and operative to unlock said latcl and swing said rack to releasing position,

16. In atypewritingmachine, the c0mbination of a power-driven. carriage; a feed rack connected thereto; step-by-step feeding devices for said carriage including. a feed pinion with Y which Y said rack normally meshes; means normally locking said rack and pinion in engagement; key actuated tabulating devices, said tabulating devices operating to separate said rack and pinion to release the carriage and automatic means for renderiiigisaid locking means inoperative when said tabulating devices are actuated.

17. In a typewriting machine, the bombifor including separable n' einb'ers which when wseparatedafi ord a free run ofi the carriage;

lockin means for niaintainin said so ia- .rable;meinbers in cooperative relation; and

tabulating mechanismincluding carriage releasing means operalile on sa d separable members and cooperative with said locking means to automatically releasejthe same.

separated afford a free run of the car riage automatically operating locking means with. said locking riage and o locked in a mesh for maintaining said se arable members in cooperative relation; an key actuated tabulating mechanism includin ing means operable on sai bers to releasethe carriage when the tabulating mechanismis actuated and cooperative means to automatically release the same. I

19. In a typewriting machine, the combination of a power-driven carriage; a feed rack ivotally connected thereto; step-bystepeeding devices for said carria e includin a feed pinion with which sai rack norma 1y meshes; means for swinging sai rack on its pivots to release said carriage from- .its ste -step feeding devices; a

latch pivotal y' connected with said carriage and normally operative on said rack to maintain it locked in mesh with said feed pinion; a member pivotally erative to unlock said latch and to sw-in 'said rack to releasing osition; key actuate tabulating devices; an connections between said tabulating devices and said member, whereby the latter is operated when the tabulating devices are actuated.

20. In a typewriting machine, the combi nation of a power-driven carriage; a feed rack pivotall connected thereto; step-bystep feedingevicesfor said carriage including a feed pinion with which said rack normally meshes; means for swinging said rack on its pivots to release said carriage from its step-bytep feeding devices; a latch pivotally connected with said carriage and normally operative on said rack to maintain it p with said feed pinion; a releasing bail pivoted to said carriage and operative to unlock said latch and to swing said rackto releasing position a bail lifter; a su porting lever on the frame of the machine to which said bail lifter is pivoted; a column sto adjustable on said carriage; a

' lurality o coiiperating-key actuated tabumachine; a universal releasin step -by-step ating stops vmounted on the frame of the bar operative by each of said cooperating ta ulating stops; and a link operatively connecting said universal releas ng bar with said supporting lever. I

21- In a typewriting machine, the combination of a 1power-driven carriage; a feed rack pivotal y connected thereto; step-bystep feeding devices for said carriage includin :1 feed pinion with which 'said rack norma 1y meshes; means for swinging said rack on its pivots to release said carriage from its feeding devices; a latch ivotallyconnected with said carriage an normally operative on said rack to maintain it locked in mesh with said feed pinion;-a release bail pivoted to said carriage and operative: tounlock said latch and to swing said rack to releasing position; a carriage release keyopera-tive on said bail; a bail lifter pivcarria e releasbetween said ta ulating separable membaillifter.

22. In a typewritmg machine, the comb1-- connected with the caroted on the frame of the machine; keyactuated tabulatin devices; and connections devices and said nation of a carriage; carriage feeding devices including members separable at any desired point between the beginnin and the end of the carriage travel to a 0rd free travel of the carriage; back spacing mechanism; and locking means for said separable members which locking means prevent the back spacing mechanism when operated from separating said members.

23. In a typewriting machine, the combination of a power-driven carriage; a feed rack pivotall connected thereto; step-bystep feeding evices for said carriage including a feed pinion with which'said rack normally meshes; means for separating said rack and inion at an desired point between the eginning an the end 0 the carriage travel; back spacing devices operative to move the carriage in reverse letter 5 ace distance at a time; and locking means or said rack and pinion, which locking means prevent the when operated from and pinion 24. nation of a power-driven carnage; a rack pivotally. connected thereto; step-bystep feeding devices for said carriage including a feed pinion with which said rack nor- .mally meshes; means for separating said rack and pinion at any desired oint between the beginnin and the end 0 travel; a toot ed back spacing wheel-mounted on the shaft which carries said inion; actuating means v for o crating sai back spacing wheel; and 100 'ng means which prevent the back spacing wheel when oper-- ated from separating 'Silld rack and pinion.

25. In a typewriting machine, the combination of a power-driven carriage; a feed rack pivotally connected thereto; step-bystep feeding separating said rack In a typewriting machine, the combidevices for said carriage including a feed pinion with which said rack normally meshes; means for swinging said rack on its pivots to release said carriage; a back i space wheel fixed to the shaft which carries said feed pinion; a back space pawl operative on said backspace wheel; a lever to which said pawl is pivoted; .key actuated means for operatin said lever;.and means for preventing sai rack and pinion from separating when said key actuated means is operated. 4

26. In a typewriting machine, the combination of a power=driven carriage; a fee rack pivotally connected thereto; step-bystep feeding devices for said car" go including a feed pinion with which said rack normally meshes; means for swinging said rack on its pivots to release said carriage; a back back spacing devlces feed direction a ioo the carriage pivotally space wheelfixed to'the shaft which carries said feed pinion; a backspace pawl cooperative with said back space wheel; a handactuated lever to which said pawl is'pivoted; a fixed stop with which said lever normally cooperates; a fixed stop for said back space pawl;-a spring normally maintaining said pawl against ts sto and-separated fromsaid back space whee and means for preventing said rack and pinion from separating when said lever is actuated. U i

27 .In a typewriting machine, the'combination of a power-driven carriage; a feed rackpivotally connected thereto;

'mally operative on said rack to maintain it locked in mesh with said feed pinion;-

means for automatically swingingsaid latch to inoperative position when the carria ,e is released; a toothed back space'wheel xedto the shaft on which said feed pinion is mounted; a back space pawl cooperativewith said back space wheel; and hand-actuated means for operating said pawl.

28. -In a typewriting machine, the combination of a step feeding devices for said carriage includ' mg; a feed plnlon Wltll which saldrack normally meshes normally operative on said rack to main-- tain it lo'ckedin mesh with means for automatically swinging said latch to inoperative position when the carriage "is released; a toothed back space wheel fixed said feedp-inion-fis pawl cooperative with "said back space wheel; a lever of the first order pivoted tothe machine frame,

to the shaft on which mounted; a back space said pawl beingpivoted toone arm. of said lever; a key at the'keyboardoperatively con nected'with'the other arm of'said leve'r;'a fixed stop with which said lever normall cooperates; a fixed said pawl against its stop and separated from said back space whee 29. In a typewriting machine, the combination of a rack pivotally connected thereto; step-bystep feeding devices for said carriage intivewith said escapement wheel back SP21C-' 4 move the carriage-1n. reverse direction a letter. space distance at a l ing devices operative to step-bye step feeding devices forsaid-carriage includpower driven carriage; a feed rack pivot-ally connected thereto; step-by means for swinging said-rack on ts plvotstorelease said carnage; a latch connected with'said carriage and i said feed pinion;

stop for said back space"- l; and a spring'normally maintaining J ment to the power-driven carriage; a feed soause time; means for preventing the separation of said rack from the pinion when said back spacing devices are 0 erated; and a back stop for preventing un ue turning of said escapementwheel in reverse direction when said backspacing/devices are operated. i 30. Ina typewriting machine, the combi: nation. of a,power-driven vcarriage; a feed rack pivoted thereto; step-by-step feedi devices for saidvcarriage including, a fee N pinion normally meshing with Said rack,

an escapementwheel-loosely mounted onthe.- shaft which carries said pinionjand.escape-, ment dogs cooperative with said escapeme nt wheel; means. for swingingsaid rack on 1ts pivots to release said carr age; a latch piv-i, otally connected with said carriage andnor? mally'operative to maintain said racklocked to saidieed pinion; means for automatically swinging said latch to inoperative. position... when the carriage is; released; a back space wheel'fixedto the shaft which carries said J, feed pinion; hand-actuatedmeans for: operatively turning'said-back'space'wheel; and i a back stop carried'by the normally engaged one of said ,escapement dogs and operative to prevent undue reverse movement of saidescapement wheel when said back spacewhel V is operatively. turned. a A 31. 'lma typewriting machine, the combi: nation of acarriage;-a feed rack; pivoted key actuated devices connecting the rack to the carriage; and adjusting-screws carried 7 by saidkey actuated devices and cooperating with thecarriage. for regulating the lengthwise position-of the rack on the carriage I 32. Ina typewriting 'machine, the combi-.- nation ofa carriage'; a feed rack; arms iv--- oted to said carriage and carrying said eedj ment; anddevices'mou'nted on said arms and 105 operative to communicate bodily-movement l to them,-whereby said feed rackis lio'ngitudha nallyadjusted-relatively to the carriagef 33.111 a typewriting-- machine, the combination of a" carriage; armseachIproTvided. at 11C one end:with apivotcapable of movementonsaid carriage in the direction of theaxis of said pivot; a feed rack supported'at the other ends of said arms; screws carried by said arms and cooperative I with said carriage to communicate -n 1ove pivots of saidarms in the direc- "tion of theaxes of said pivots ,whereby said feed rack riage. Signed atSyracuse, in the county of Onondaga, and State of New York, this 4th day of May A. D. 1906'. I a j GEORGE A. SEIB.. lVitnessesy. a I JOHN S. MITCHELL,

' W, J. LOGAN.

is moved relatively to said carrack, said arms being capable ofbodily move and adjustable

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