US937414A - Type-writing machine. - Google Patents

Description

L T, BROWN. TYPE .WRITING MACHINE APPLIOATlON IILED APRA?, 1908.

Patented @0%. 19, i909.

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A. T. BROWN. t T'Ps WRITING MACHINE.

APPLICATION FILED APRJ?, 190B.

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A.. T. BROWN. TYPE WRITING MACHINE. APPLICATION ILED APE. 17, 1908.

Patenef 00. 1.9, 1909.

i WITNESSES.- `V bw A TTORNEK A.. T. BROWN. TYPE WRITING MACHINE. APPLICATION FILED APRA?, 1908.

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Specification of Letters yatent.

Patented t.,

To ali-whom it 'na'y concern: A

Bel it known that I', ALEXANDER T. BROWN, a citizen ofthe United States, and resident Y. of Syracuse, in the county of @nondaga and Writing Machines, of which the following is certain features of construction and com# State of New York, have invented certain new and useful Improvements in fTypea specification.

Myinvention relates to typewriting machines and more particularly to tabula'tor automatically restored by the engagement ofthe tabulator stops in arresting the can' riage.

To the above and other endswhich Will hereinafter appear, my invention consists'in binations and arrangements of parts, all of which will be 'ully set forth hereinafter and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 v is a side elevation of a tabulator constructed in accordance with my invention', parts of the typewritinfr machine to which said tabulator is lapplied 'being shown in vertical section. The parts are shown by full lines in their normal positions, and some of the parts by broken lines in operated positions. Fig. 2 is a rear elevation of the mechanism shown in Fig. 1 but with parts broken away and the tabulator shown as it appears when it arrests the carriage inthe ordinary manner; that is to say, when the carriage has moved from the right toward the left. Fig. 3 is a view similar 'to Fig.v 2 but showing the tabulator operated for reverse tabulation; that is to say, in theiact of arresting'the carriage when' said carriage hasv been mei-ed toward the right by hand. Fig. 4 is a Adetail side elevation of sonic ofthe parts in the ;po-

Vsitions shown in Fig. 3: Fig: av is a rear ele!" l vation with .the parts in theirnormal nosi v typewriter in which the .key and t' 4itngitudinally oi said tions, my invention being shewn in this tig'uie applied to a denominationai tabnlator. My invention is applicable te typewriting machines generally and to tabu" "ng mech anism gene-raily, but in the pi .nstanee I have shown it applied e i onttrike y actions are stationary and the carriage carries the platen.

The typewriting machine shown in the drawings comprises a main frame having side plates 1 with corner posts 2 integral there with, which corner posts support a top plate 3. rlhe side plates l are connected tegeth'er at the rear by a nach plate or bar Liand at the front by a front plate 5 and also by a key board plate 6, through whiclfthe stems of the printing keys are arranged to pass. The printing mechanism may be of any suitable'sort and it is not shown in the ares ent instance, 'but it may comprise type ars, the types on which. strike against the front face of a plate i, mounted on a carriage 8. Said carriage is sup orted on astationary rail '10 by means o. anti-friction bells or rollers 'vll which run in suitable race-ways formed in the rail 10 and in the carriage. Said rail l() is supported by standards 12 risin from the to plate 3. The carriage is i'ed rom right to ieft by a driving spring i3 coiled` within al s ring drinn 14 which is mounted on a sha 't 15 journaled at its ends in 'frame plates and 17 depending` roni the top plate 3. The sprinA 13 is connected in any suitable manner wit i a driving gear 18 which extends up through a. suitab e sist inthe top plate and meshes with a ra'eiil 20 mounted on the underside of the paper carriage. A second ear wheel 21. is ioeseiy mounted on the shaiii i5 by the 'side o the gear 18 and said gear 21 meshes .with a pinion 22 which ismounted on a shaft 2,3 jour-- naled at its ,lends i-ii the frame plate 16e-17A, the inion being mounted en said shaft with fre om to' turn thereon but held against motion endwise of the shaft. The rear face of the pinion 22' is formed with ratchet clutch' teeth las shownin Fig. l, said clutch vteeth meshing with corresponding teeth on "aslidable clutch member 24 which'is mounted lon the shaft 23 with 'freedom to slide l Q ait but constrained to-,tarn .with .tine .strepen/es se .which fie4 play in suitable slots or notches formed in a flange 26 integral with the shaft 23. The

clutch member 24 is normally held-in its forv'ward position with the clutch teeth thereon i-n engagement with the clutch teethoflthe gear 22 vby means of a spring 27 coiled about the'clutch member and compressed between the flange 26 and av suitable flangev o'ii theclutch member 24. Any suitable es capeinentmechanisin controlled Yby thev usual printing keys and space key of the machine may be connected in any suitable way with the shaft 23. I have not shown the escapel ment in l,the present case but have .shown a spiral gear W ieel 28 rigidly mounted'on the shaft 23". and adapted'toinesh with a pinion having. 'l escapeinent wheel connected therewith. n escapement adapted to be con- -nected up With the carriage -in this manner is shown in a prior ap lieatioii of inine. It will begunderstood yt at,when the clutch member 24 is in normal position as shown Fig. 1,.the carriage is underA the control of the ese'apeinent and that the carriage may be released from such control by moving the clutch member 24 toward the rear of the machine against the tension of its spring`27.

The tabulator illustrated in the present instance comprises a column stt?) bar supported by arm's'31 depending r'oin the-carriage, said arms han ing down behind the -carriage in such fas ion that the column s top bar is just behind the -rear edge 0f the top plate 3. Said column stop bar is-forined in two of itsopposite edges or faces with` l the vusual slots spaced a letter space distance apart and adapted for the reception of a series' of column stop pieces 32. These stop pieces are U-shapedpieces of sheet inetal which straddle the column stop bar, the two,

upwardly extending arms of each stop piece being insertedinto two opposite slots in the faces of the stop bar. It will of course be understood that these column stop pieces are adjustable longitudinally of the stop bar by -removing them from the bar and inserting them into any selected pair of the slots.

y Each ofthe column stop pieces 32 has a stop portion or lug 33 proJe'cting downward from its under edge and, as vis clearly shown in Fig-1, these 'different stop lugs are not` arranged, in line but'are arranged at dif- Vferent positions fore and aft of the machine. These stop lugs are adapted.A to `copei'atc with a vkey controlled stop 34 which-consists of the upper endof an upright bar 35 which is pivotedl at its lower end at 36 to an arm 37l rigidlyl secured toand, projecting toward 't jecting from the back fthe front 'of the niacliine'1fi'oin a transverse rock shaft. 38 pivoted inbrackets 39 pro.- plate 4 ofthe main frame; The bai' 35 is guided near its up'per slidably mounted on a' transversehorizontal lpivot rod 42 fixed in a bracket 43 that demoving the bar 35 upward.

- key levers 55, 56,

pends from the top plate 3, said pivot rod having its longitudinal axis parallel to the direction of carriage travel. The rod 42 passes through a suitable hole in the lower end of the bracket 43 and is rigidly secured r in place by set screws 44. Near its upper end the frame41 has a slotted ear 45 and the upper part of the bar 35Vis guided in the slot in this ear of the trame. said slot extends through the back of the ear and is closed bya screw 4G threaded transversely through said ear. The construction is such that the'bar is free to slide up and downin the slot and to have a slight roeking motion in said slot' in a fore and aft plane but the bar is prevented from moving relatively tothe frame 41 either in a right land left-hand direction or in a front and rear direction. The bar 35 is movedupwa rd to bring the stop 34 to the saine elevationas l `As here shown one of the stop lugs 33 by rocking the shaft 38 in a.. manner which willrbe presently described and it is caused to copera'te with one or another of said stop lugs 33 by rocking 1the frame 41 about its pivot 42 thus niovingthe stop 34towai'd the front oi to rocked .to bring the 'stopv 34 intol coperation with' any selected one of the stop lugs means of any one of a. series o'f coluinn selecting' keys 50, 51, 52 and 53,'jwhiehkeys are inounted on the upper ends of key vstems 54fpassing through the keyboard plate'` (3. The coluinn keys are arranged iii a row at .the extreme right-hand side of the keyboard.

The stems of the keys 50, 51, 52 and 53 are respectively pivoted tothe front ends of '57.and .58, said key levers extending side by side towaid the rear .of

`the machine and being` pivoted about n'iid way of their length on a p'ivotscrewl G0 threaded into the right-handside plate l.

A universal lever 61 is pivoted oii the screw l 60 by tlie side ofthekey levers and said uni.- versal lever near 'its rear end has a pin 62 projecting. therefrom and, lying over the Itopsjof all of the key'levers 55, 56, 57 and 58, lthe construction'being'sueh that 'when `any one of-'saidvkey levers is' depressed at its forwardneiidaiid thereby elevated at its rear4 end, rocking-about the'pivot screw vG0,

the.universallevei1 G1" will be rocked in unil -son therewith.

I lEach `of these fivedevers is provided with a returning sy ring 63, all. of said springs 63 beingfs'ecuredj y A at their upper ends toabracket A(64seciired to the side plate isp eer-,eis

.ends ojf the Akey levers and of the "universal lever. v l The frame 41 has an arm 67 which extends downwardand toward the right from the pivot Irod 42, the lower end of said arm 67 extending horizontally over the rear ends of the several column key levers and having mounted thereon an anti-friction follower roller' 68 which cooperates with cams on the versal lever 61 is form at' its rear end with,

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rear ends of key leversand of the universal lever. As shown in Fi 's. 1 and 4, the unian opening, the upper artof which is in the shape of an invert V and the roller 68 y passed through this dpening. The rear end I of the universal lever is Anor'-'mally held down as showri'in Fig. 1 by its spring 63 and the Vshaped endo the lever engages the roller 68 and normally maintains said roller and with it the frame l1.1 in a middle position.

Each of the key levers 55, 56, 57 and 58 has its rear end formed with a cam .which is "adapted to move the roller` 68 one Way or the other from its normal middle position to an exactly predetermined extent. In Fig. .-1 it will be seen that the end ot' the lever I r58 has a cam surface and a deep notch so formed that when said lever vis operated it moves the "roller, one units distance toward the' rear and the upper part ofthe frame 41 correspondingly toward. theV front of the machine. In Figs. 2, 3 und 4 the lever 56 is shown o rated and as appears in Fi av vthis lever as a cam that moves the ro ler 68 toits extreme rear positionvvherey it abuts against a part of the universallever'l, thus moving t e key controlled stop 34 to its extreme forward position for coperation short distance toward the front instead of a short distance toward the rear. lt will thus be seen that when any one of the column leys is depressed the frame 41 is rocked toward the front `or back of the machine.'

The ro'ck shaft 38 atitsl right-hand end is Vloenttovgard the front, forming an arm which at'its forward 'end is bent toward the vlet,form1n'g a universal bar -71 which. lies over the tops 'of all of the'oolumn key levers.

. The construction issuch: that Whenever any one of said levers is operated the shaft 38 is rocked, thus moving the bar 35 upward to -bring the stop end .34 thereolcI into the path of one of. the column'stops. The shaft. 38

is provided with a restoring spring 38a.

,The frame 41 Where itis mounted on the rod a2 has an elongated heb 72 and the hole through which the rod .e2 passes is enlarged atits .right-hand end, thus forming an annular s ace around the rod 42 terminating at the eft in a shoulder. A spring 73 is coiled around the rod 42 and is compressed between said shoulder and a head or enlargement 74 of the right-hand end of the rod l2. The construction is such that the spring 7-l presses the frame 41 tpward the left. The

lugs l.t8 between which thearm 47 of the :trame 41 is adapted to play,' are spaced' aparta distance greater than the width of said arms 47 so thatthe frame is capable of a slight motion toward thcright or towardv I the left, which motion islimited by the lugs 18. The'frame L11 is normally held-in its left-hand position as shown in Fig. 2 by the spring 73. The 'amount of sliding niotion 'which the frame 4l is free to have is designed to be equal to the combined thickness of thel stop 34 and any one of the column stops. In Fig. 2 the tabulator is shown arresting the' carriage in theordinary manner; that 1s to say, at the end of the motion of the carriage in letter space direction, Whereas in Fig?) the same column stop is shown cooperating with the stop 34C to arrest the carriage when said carriage is pushed toward the right by hand. t will be seen in said Fig. 3 that the stop 34 and frame 41 have been moved toward the left against the tension of the springp 73 until the arm 47'has engaged the right-hand one of the lugs 48 with the result that the carriage is arrested yin the same position when operated in this fashion that it was when operated in the manner indicated in Fig. 2,

so that-the carriage is stopped at the same tabuletter space position Whether ordina lation or reverse tabulation is eecte Means are Vprovided yfor automatically releasing the carriage from its escapementl mechanism Whenever any one of the tabulator keys is depressed and l have so constructed thls releasing means that when the carriage is arrested in reverse tabulating as shown in Fig. 3, the carriage release device is automatically thrown out of operation and the carriage is again connected with its `escapement Without Waiting ior the release of the tabulator key. The release ofthe carriage isetected by an arm 75 loosely mounted on theshaiit 38 and having its'upper end engaging in a" peripheral slot formed in the vmounted on the rock shaft 3 8 by the side of .the arm 75 and said arm 76 has a hole through its free end through which there 4passes a rod 77, the left-hand end of which clutch member 24, lAn arm 76 is .rigidly normally stands infront of the arm 7 5 as and the shaft 38 is rocked the end of the i rod -77 force; the leverI arm 75 towardthe rear of the machine, disconnecting the clutch member 24. When a tabulator 1s used 1n the ordinary way theetfect is practically the.

same as if the arm 75 were rigidly mounted .on the shaft 38, the clutch member remaining in its releasing position unt1l the tabulator key is released. lVhen, however, the

. device is used for reverse tabulation the car'- riage is pushed-toward the right by hand until one of the column stops engages the stopl34 and moves the frame 41 toward the right. .This motion .carries the rod 77 also i toward the right, withdrawing its left-hand endfrom in front of the lever arm 75 as is clearly indicated in Fig. 3.- When the twocooperating stops come into engagement in l this manner, the arm 75 is therefore instantly released and the clutch member 24 l is thrown forward into its operative position by its'spring 27. It will thus be seen that, in reverse tabulation the carriage release de.-

vice is automatically restored or thrown out of operation when the stops come into 'engagement. This feature is very important and renders reverse tabulation practicable. In tabulators as heretofore constructed it-lias not been practicable to use the tab'ulator to arrest the carriage in its return motion for f the followingreasons When the operator ...while he continues -pushing toward the riage is likely to yield to l.the pressure of the very considerable amount o f care that an op' right on the carriage, as soon as the tabulator stops get `out o f 'engagement the carhand and to move a few letter spaces toward the right. It is only by theexerciseof a erator can perform this operation of reverse y #tabulation with tabulators as heretofore constructed, and-infacttheamount of care nec f essary'has been so great that this operation is not :ordinarily `performed in practice.

With my' device the operator can push the carriage to the right and instantly -let` go of the carriagabecause as soon as the tabu- ,lator stops comeinto'. operation to arrestthe carriagel the vcarriage is automatically its `and instantly replaced underthe control 4,of its' escapement. Infact., it is not necessary for the operator to follow, the `carriage with hishand through its entire motion.. He may sta'ltt toward-,the right with suiicientspee'd point where it is arrested by the tabulator and when the carriage is so arrested it automatically causes litself to be reconnected wlth the escapement and it is held inthe' position in which it was stopped. The operator can then release `the tabulator key and the carriage will be accurately positioned.

The advantages of the present construction are no doubt obvious. Where an o erator is writing matter that is arrange in columnshe 'can go instantly from anycolumn to any other column no matter whether this involves a motion of the carriage toward the right or toward the left. If he has just written something in the first column and wishes to go to the lthird or fourth he has only to depress the appropriate column selecting key and the vcarriage will be arrested at the selected column. If the next entry is to be made in the first or second column he does not have to push the carriage clear back to the right and then depress a tabulator key, thus involving two operations to get to the selected position, but he depresses the tabulator key first and draws the carriage back until it is arrested, thus bringing it to its proper position at a single operation.

My invention is equally applicable to denominational tabulators, and I have shown it in Fig. 5 embodied in such a tabulator. In said Fig. 5 the parts which are like those in the other -views are designated by the same. reference numerals as in the other views. The framework of the machine, the carriage and its mounting, the. column stop bar, the carriage feed mechanism, the release arm 7 5 and the arm 76 rigidly mounted on the rock shaft 38, are all the same in this figure as in the 'other figures of the drawing and so also is the rod 42 which is secured l.in -the depending bracket 43. Instead of a single stop bar 35, however, there is a series of such bars S0 mounted side by side and each arranged to be pushed longitudinally upward by a lever or other means which means may be operated by'a series o denomination keys mounted on key stems 81 at the back of the keyboard of the machine.

Jator may be similar to that shown in a prior application of mine and the rock shaft 38 may be oscillated by any suitable universal bar when any one of the tabulator stops is moved upward into the path of one of the column stops.

secured at the upper end of, a frame 83 whichis mounted on the rod 42 in the same way as the frame 4l in the other figures of .the drawings. The frame 83 has an arm 84 which stands between the lugs 48 with freedom to move in a right and left-hand direction to' the same extent as in the first form of the mvention: y The'arm 84 and frame 83 The stop bars 80 are guided at their upper ends in a comb 4plate 82 forming partof, or

In these respects the denominational tabu- "LEE sentia are revented from rocking in a fore and art irection by plates 85 secured to the lugs i8 by screws 86, one ci these plates standing in front oi the upper end of the arm 84 and the other at the back of said arm. The treme 83 has a depending arm 89 to the lower end ot which is pivoted the rod 87 corresponding to the rod 77 of the other form ci the invention. The framev 83 also comprises a hub 88 in which there is coiled s. spring in the saine manner and for the saine purpose as the spring 73 shown in il. lhe construction is such that when a denominational key is depressed one of the stop bars 80 is elevated to move its upper s end into the ath of one of the column stops,

the r cli sliait 38 is cscillated and the end of Ithe rod Si' :moves the reiease arm 7 5 toward the back of the machine, thus releasing the lf the carcarri from its escape/ment.

ringe is 'permitted to run under the impulse of its driving spring it is arrested byy the operated denomination stop and a column stop in the ordinary niannergbut if, When the tabiilator key is operated, the carriage is pushed toward the right it Will be arrested by one ci the column stops striking the operated denomination stop and said denomination stop, together with the frame 83` and the entire gang of denomination stops, Will be moved toward the right, slidinv on the rod 4t2 until these parts are arrested'by the arm.

striking the right-hand one or' the lugs 48. lin this motion oi the parts the rod 87 will be Withdrawn iromfin iront of the arm 75 and the carriage will be restored to the control of the escapement, the operation. being similar to that in the other :form of 4the invention.

Various other changes may be made in the details ci construction and arrangement Without departing roin my invention.

lWhat l claim as new and desire to secure by Letters Patent is Tl. .in a typewriting machine and in tabulating mechanism, the combination of a carriage, one or more column stops, a tabulator stop, means for moving one of said stops into the path ot' another, a carriage release device operated by said moving means, and ineens operated by the engagement of said stops tor restoring said carriage release de vice independently of the restoration ot said movable stop to normal position.

2. ln a typeivritinn1 machine and in tabuiating mechanism, the combination with a carriage, means for controllingl the stepstep feed of said carriage, tabulating mec anism comprising tivo cooperating stops, key controlied means for moving one of said stops into tbe path o the other, a carriage dev: :e operated by said key consans, and means for automaticaliy tering said carriage release device "vhen iid stops come into engagement and 1ndependently of the restoration of the key-con trolled stop to normal position.

3. In a typewriting machine and in tabulating mechanism, the combination oi' a carriage; a motor for moving said carriage in letter space direction; nfeaiis for controlling the stepby-step feed of said carriage; tabulating mechanism comprising cooperating stops, key controlled means for moving one of said stops into the path of the other, one of said stops being mounted to yield when the carriage is moved in a direction the reverse of letter feed direction; a carriage release device operated by said key controlled means, and means operated by the yielding motion of said yieldingly mounted stop for restoring said carriage to the control of the feed mechanism.

lating mechanism, the combination with a carriage, of tabulating mechanism comprising two cooperating stops, key controlled means for moving one of said stops into the path of the other, a carriage release device, a connection between said carriage release device and said key controlled means, and means for automatically disconnecting said *carriage release device from said key controlled means by the engagement of said cooperating stops.

5. In a typewriting machine and in tabulating mechanism, the combination with a carriage, of tabulating mechanism comprising cooperating stops, a plurality of tabulator keys, a universal member operated by any of said tabulator keys, a carriage release device operated by said universal member, and means operated by the engagement of the cooperating stops for disconnecting said carriage release device from said universal member.

6. ln a-typcwriting machine and in tabulating mechanism, the combination with a carriage, of tabulating mechanism comprising cooperating stops, one of said stops being mounted for motion in the direction of carriaGe feed, means for limiting the extent oi Sudh motion, a spring normally holding said stop at one limit of its motion, the construction and arrangement being such that When two stops come into engagement by a motion ofthe carriage-in letter space direction, said movably mounted stop will not be moved, and when said stops come into enriage said movably mounted stop will be moved against the tension of said spring; key controlled means for moving one of said stops into tlie path of another; and a carriage release device operated by said key controlled means and disconnected from said key controlled means by a movement of riagc is arrested after a motion Ain a reverse direction. i

gagement by a reverse motion of the cai.

said movably mounted stop when the car- 7. In a typewriting machine and in tabulating mechanism, the combination with a carriage, of tabulating mechanism comprising cooperating stops, key controlled means for moving one of said stops into the path of t-he other, a carria e release device, a connection between sai 'key controlled means and said carriage release device comprising an endwise movable rod, and means operated by an engagement of the coperating stops for withdrawing said rod to disconneet said carriage release device from said key controlled means.

8. In a typewriting machine and in tabulating mechanism, the combination with a carriage, of one or more column stops, one or more key controlled stops, a guide for said key controlled stop or stops, said guide being mounted for limited motion in the direction of carriage travel whereby said carriage will be arrested at the same letter space position by the coperation of a key controlled stop and a column stop whether sain carriage be moving in letter space direction or in reverse direction.

9. In a typewriting machine and in tabulat-ing mechanism, the combination with a carriage, of one or more column stops, one or more key controlled stops, a guide for said key controlled stop or stops, said guide being mountedfor limlted motion in the dreetion of carriage travel, key controlled means for moving a key controlled stop into the path of a column stop, a carriage release device operated by said key controlled meansand means controlled by a movement of said guide for restoring said carriage to the control of the feed mechanism.

10. In a typewriting machine and in tabulating mechanism, the combination with a carriage, of a series of column stops having contact surfaces out of line with one another, a key controlled stop, a guide for said key controlled stop mounted to swing on a pivot the axis of which is parallel with the travel of the carriage and to slide longitudinally of said pivot for a limited distance, a plurality of column selecting keys, means operated by vsaid keys for swinging said guide about its pivot and for pro]ect1ng said key operated stop into the path of any one of said column stops, a carriage release device operated by any ot' said keys, and means operated by the l motion of said guide longitudinally of its pivot for restoring said carriage to the con-A trol o'f the feed mechanism. A

11. In a typewriting machine and in tabulating mechanism the combination with a carriage, of tabulating mechanism comprising columnstops and a key operated stop, a guide for's'aid key operated stop, a support for said guide along which said guide is adapted to slide in the direction of carriage travel to a limited extent such that the carriage will be arrested at the same letter space carriage and having stor s' -faces out of line' with one another, a cooperating key con trolled stop, a guide for said key controlled stop, said guide beingpivoted to swin about an axis parallel with the direction o carriage travel, means for swinging said guide about its pivot and for moving said key controlled stop to operative position, whereby said key controlled stop may be brought into the path of any one of said column stops, said guide being mounted for a limited motion longitudinally of the pivot whereby said carriage is arrested in the same letter space position Whether it be moving in letter space direction or in reverse direction.

13. In a typewriting machine and in tabulating mechanism, the combination with a carriage, of tabulating mechanismk comprising one or more column stops, and a cooperating key controlled stop, said key controlled stop eing mounted for a motion of adjustmentV transversely of the direction oil vcarriage travel to bring it into eoperation with one or another of said column stops, for a motion in another direction into the path of one of said column stops, and for a limited motion in the direction of carriage travel.

14. In a typewriting machine, thecombination with the carriage, of two carriage arresting stops, one of said stops being operative against either side of the other, means to render the carriage movable toward the right a distance equal to the thickness of both stops while the stops are in contact with each other, a key connected with one of said stops, carriawe releasing mechanism connect ed with said` key, and means opcrativeby the carriage, while it moves toward the right and while the stops are in contact Witt eachother, to restore the carriage to the control of the carriage feed mechanism when the carriage is arrested.

15. In a typewriting machine, the combination with thecarriage, of two carriage arresting stops, one of said stops being on the carriage and being operative against either leasing mechanism connected with sai key,

of the carriage feed mechanism when the V carriage is arrested.

Signed at the borough of Manhatam, cit of New York, in the County of New Yor and'State of New York this 14th day of Aprll A. D. 1908.

AMXA'NDER T. BROWN.

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