US788012A - Type-writer. - Google Patents

Description

No. 788,012. PATBNTED APR. 25, 1905.-

N. L. ANDBRSUN.

TYPE WRITER.

PATENTED APR. 25, 1905.

N. L. ANDERSON.

TYPE WRITER.`

APPLIOATION FILED SEPT. ze, 1904.

6 S HET SHEET 2.

No. 788,012. EATENTEE AEE. 25, 1906. N. L. ANDERSON.

TYPE WEITER.

APPLIOATION FILED SEPT. 26, 1904.

6 SHEETS-SHEET 3.

dv i mi @KMM No.' 788,012. PATENTED APR. 25, 1905. N. L. ANDERSON.

TYPE WRITER.

APPLICATION FILED SEPT.26, 1904.

SHEETS-SHEET 4.

witnesses ggf @KM PATENTED APR. 25, 1905.

N. L. ANDERSON.

TYPE WRITER.

APPLIOATION FILED sumas, 1904.

6 SHEETS-SHEET 5.

Patented April 25, 1905.

` ATENT @trice NEAL LARKIN ANDERSON, OF MONTGOME tY, ALABAMA.

TYPE-WRITER.

SPECIFICATION forming part of Letters Patent No. 788,012, dated April 25, 1905.

Application filed September 26, 1904. Serial No. 225,981.

.To rrr/ ll'mm/ it 711/111/ confer/L:

Be it known that I, NEAL Linkin ANDrn-asos. a citizen of the United States, residing at Montgomery, Montgomery county, State of Alahama, have invented certain new and useful Improvements in rl`vpe-iVriters; and ldohereh v declare the 'following to hea full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to type-writers, and more particnlarl \v to mechanism for effecting the retn rn ofthe papencarriageof type-writer machines of the general type described and claimed in in v former patents, No. (395,779, granted March 18, 1902, and No. 72 2,498, granted .lune 30, 1903.

The ohject of the invention is to provide a tvpe-writer with mechanism for returning the carriage and simultaneously spacing the platen, possessing' greater simplicity of construction and etticienc)v of operation, and involving a material reduction in the cost of manufacture and installation.

VMore particularly the improvements embodied in the present invention comprise means for effecting the accurate spacing' of the lines of print, said means being integrally correlated with the carriage-return mechanism, means Vfor bringing into action the springmotor for returning the carriage and for disengaging the same from the carriage through the intervention of stop mechanism associated with the usual margin-stop, means for disengaging the return-key from the mechanism that trips the spring-motor into action, wl1ereh v the the key may be held down b v the operator without interfering with the release of the return spring-motor or the advance of the carriage for writing the new line, means for promptlyY and effectively checking' and stopping the momentum of the electric motor which maintains the energv Of the auxiliar)Y or return spring-motor, and means for readily adapting the electric motor to currents of different types or potentials.

Referring to the accompanying drawings, Figure 1 is a front elevation of a standard i Underwood type-writer with my improvements applied thereto, certain portions of the type-writer mechanism being omitted for the sake of clearness. Fig. 2 is a fragmentary side elevation of the t\f'pewriter, showing the carriage-return ke)v and its app u rtenant mechanism. Fig. Q is an enlarged detail view of the latch for connecting the return-key and the lever for operating the motor-stop. Fig. 3 is a side elevation showing the spring-motor and the electric motor in position. Fig. 4 is a View corresponding to Fig. 2, showing the return-ke \r in depressed or operative position. Fig. 5 is a vertical section through the motor mechanism. Fig'. o 1s an enlarged detail view of one of the contact pins or brushes h v means of which the circuit is established between thespring-motor mechanism and the electric motor. Fig. 6 is a fragmentary sectional rear elevation showing the relation otl the motors to the machine-frame. Figs. 7 and S are a side view and a front elevation, respectively, of the clntchaing for connecting the spring-drum to the bami-wheel. Fig. 9 is a transverse section through the spring drnmandclutch-ring. Fig. 10isa plan view of the forward part of the type-writer, illustrating the relation of the carriage-return mechanism and the platen-spacing' means, certain portions of the type-writer mechanism bcingomitted for the sake of clear-ness. Fig. 11 is an enlarged detail view showing the clutch-lever for locking the traction hand to the carriageframe. Fig. 12 isa corresponding View showing said clutch-lever in released position. Fie'. 1I) is a detail view, in transverse section, showing the means for locking and releasing thereturn-key. Fig. 11 is a corresponding view .showingl said means in locked position. Figs. 15, 16, 17, and 18 are detail views of the rheostat-controller .for the electric motor. Figs. 19 and 20 are horizontal and vertical sections, respectively, through the lower part of the electric motor, showing the braking means for said motor. Fig. Q1 is a diagrainmatic view of the electric circuits and connections by means of which the electric motor is controlled.

Referring to the drawings, A indicates a type-writer having the usual reciprocating paper-carriage B, which is provided with the ordinaryv rotar)Y platen by means of which the IOO paper is supported and spaced for successive lines of writing, said platen being omitted to avoid complicating' the drawings. On the left-hand side of the carriage B is pivoted a spring-retracted lever C, which is employed for spacing the platen for the successive lines of print, and in this type of machine it is customary to grasp said lever and return the carriage to its initial position at the same time the platen is spaced, so that the carriage is returned to its initial position and the paper moved forward for a new line of print by one motion of the operator, as will be understood by those familiar with this class of machine.

Mounted upon the machine-frame, adjacent the right-hand end thereof, is a small electric motor af, having a vertical shaft 5, upon the end of which is secured a worm-gear c, which meshes with and drives a worm-wheel CZ, which is secured to a shaft e, journaled in suitable bracket-bearings on the motor-casing. Loosely mounted upon the shaft c is a spring-drum f, having an annular rim fl, provided with ratchet-teeth. The actuating-spring g of said motor is connected at one end to the shaft c and at the other to the interior of the drumf, substantially in the manner shown in my former patents above referred to. Loosely journaled on the shaft e adjacent to the drum f is a band-wheel fr, to which is connected one end of a exible traction band or strip c, the other of which is secured to the platen-spacing lever C.

Mounted upon the outer periphery of the drum f is an annular clutch-ring o, provided with a series of diagonal slots p, which are engaged by screws or studs g, set in the periphery of the drum f. The edge of said clutch-ring'is provided with teeth or serra tions t, adapted to be brought into mesh with a similar set of teeth or serrations s on the adjacent face of the band-wheel yr. A spiral spring u, secured at one end to the band-wheel and at the other to a stationary part of the motor-frame, serves to rotate said band-wheel in a direction to take up the slack of the trac tion-band when the carriage is returned or moved backward by hand.

On the face of the spring-drum f there is mounted a conductor-ring L, which is separated from said drum by an insulating-disk lu. Secured to the shaft e by means of an insulating-bushing Z is a conductor-disk e', in the periphery of which is a spring-pressed conductor-pin j', which engages theinner edge of the ring /L and establishes electric connection between said ring and the disk i. Springpressed pins or brushes m and n, carried by suitable insulated bushings in the motorframe, serve to establish circuit connections between a source of electricity, ring 7L, disk t', and the electric motor c in a manner to be more particularly described hereinafter.

Pivoted on the upper end of the casing of the electric motor c is a stop-lever w, having thereon a pawl m, adapted to engage the ratchetteeth f on the spring-drum f and restrain said drum. said lever being normally lifted by a spring z/ to cause the pawl m to engage the ratchet-teeth aforesaid. To the forward end of the lever w is connected a rod z, which in turn has a pivotal connection with a lever mounted upon a pivot-pin c on the side of the motor-frame. Pivoted on the pin cl aforesaid is a key or key-lever ro, midway the length of which is pivoted an angular latch e, having a notch or recess in its upper end adapted to normally engage a laterally-projecting pin la on the lever so that the key-lever a. and the lever are normally connected by and caused to move together through the interposed latch e. A spring g', connecting said latch with the key-lever a', holds said latch in position to engage the pin t', and a detent t" on the base of the machine lies in the path of the horizontal arm of the latch e and rocks said latch against the tension of spring g, so as to disengage said latch from the pin 7L and permit the key c and the lever In to move independently of each other. The detent t" is formed by the upturned end of an L-shaped guide-bracket, the forward end of which is slotted to provide a guide for the key-lever to'.

Mounted upon the machine-frame above the levers c and is a sliding bar la', which is connected to and guided upon the standard of the machine-frame by screws or studs Z. eng'aging suitable slots in said bar. A spring m, connected at one end to the machine-frame and at the other end to said bar, tends to lift said bar and the lever 7)', connected thereto by a link j", so that they normally occupy the relative positions illustrated in Fig. 2. Journaled in the upper forward portion of the machine-frame, and substantially parallel to the carriage-way F, is a horizontal rod if, upon the outer end of which is rigidly secured a depending pawl 0', having a notch in its lower end adapted to receive the upper end of the bar 7s' when said bar is pulled down to the position shown in Fig. 4. A short helical spring t, secured at one end to themachineframe and at the other end to the rod 1M, serves to rock said rod, so that the depending pawl 0 on the end thereof is normally in position to engage the bar 7s', as hereinbefore described. The rod n/ also passes through the body of the adjustable margin-stop D, which in this machine is adapted to be moved backward and forward upon its supporting-rod, so as to stop the carriage in its return movement at any predetermined margin-defining point, as will be understood by those familiar with this machine. Rigidly connected to the rod n is a generally horizontal finger or stop p', having a boss or extension q' on its upper forward end, which lies in the path of movement of a detent or abutment vf, mounted on the carriage-frame adjacent to the usual scalepointer. The forward edge of the detent yr is IOO IIO

IIS

beveled or inclined to provide for a gradual tor-frame`by suitable screws. Tithin said but definite depression of the stop p, as the box is mounted a cylinder f", upon which is parts aforesaid come in contact upon the rewound a coil of German silver or other highturn of the carriage. rlhe rear sides of the resistance metal, preferably provided with a 5 detent r is provided with an extension N, porcelain coating'. To the periphery of the 7o lying in the plane of movement of said detent cylinder is secured an L-shaped conductor n, and substantially equal in length to ten printone portion of which partially encircles the ing-spaces or equivalent to the usual space cylinder near one end thereof and the other provided at the beginning of a paragraph. It portion of which runs longitudinally of the IO will be seen, therefore, that the stop /1 is ensurface of said cylinder. Adjacent to the hori- 75 gaged by the detent f" and the rear projection zontal portion of the conductor y are mountthereof, while the paper-carriage moves over ed two blocks I" and j", which are connected the usual paragraphing-space both at the end to the resistance-wire at separate points inof the return and initial forward movement tei-mediate the ends thereof. rl`he adjacent of said carriage. edges of the blocks and j and the conduc- 8o Pivoted on a suitable stud r on the frame tor g are recessed to form sockets for the reofthe carriage B at a point adjacent to the ception of suitable plugs, whereby a circuit scale-pointer is a curved clutch-lever uf, the may be closed from either of said blocks diupper end of which is forced by a spring vu' rectly to the conductor (/H. One end of the 2o against the traction-band r and serves to conductor-wire is secured to the curved end S5 hold the same firmly against the pointer, as of the conductor y and the other end of said shown in Fig. 1l, while the lower end of said resistance-wire is connected to a longitudinal lever H is adapted to be engaged by the lower strip h, mounted on the surface of the cylportion of the margin-stop D, whereby said inder above the conductor y. The box e" is lever is rocked against the tension of spring closed by a cover or partition t", which is pro- 9o ab to release the traction-band z' for reasons vided with two holes or sockets registering to be more particularly explained hei'einafter. with the plug-sockets between the blocks i In order to promptly arrest the movement j" and conductor y", and two spring-pressed of the electric motor when the tension of the pins 0 and p serve to make connection with spring-drum has been properly restored, I the strip z and one terminal of an ordinary 95 have found it desirable to interpose apositive snap-switch s. The other terminal of said braking means for the electric-motor shaft, snap-switch x is connected with one of the said braking means consist-ing of the followmotor-leads. Removably secured to the box ing elements: A disk fz, of brass or other andoverlying the partition t is an outer cover non-magnetic metal, is secured to the lower likewise perforated for the circuit-plugs 12o end of the motor-shaft and cooperating and carrying two pins m and yn", adapted to therewith are two brake-shoes lf", preferably engage the pins o and p", said pins nl and of soft iron, which are normally forced into n being connected to the two line-wires. A engagement with the periphery of the disk brush or spring contact engages the free n," by means of spring-standards c", upon end of the curved portion of conductor g and [o5 which the brake-shoes are supported. It will is connected to the other lead of the motor. be seen, therefore, that the brake-shoes nor- The resistance included in the controller above mally engage the disk on the shaft and predescribed, of course, may be proportioned to vent rotation of the electric motor. In order suit any desired conditions of current or volto relieve the motor-shaft from this braking tage; but it has been found that an efficient 11o action, l provide two polar extensions d" control may be maintained when the resistfrom the lield pole-pieces, which extensions ance is made suiiiciently large to enable the lie adjacent to the brake-slices so that motor to be operated upon a circuit of two when the motor is energized by a current hundred and forty volts, under which circumpassing therethrough and the pole-pieces are stance the current will pass through the en- 115 magnetized the polar extensions d will extire coil. 1f the motor, for example, is wound ereise a strong magnetic pull upon the brakefor one hundred and ten volts alternating curshoes and draw the same out of contact with rent, it will be necessary to introduce a rethe disk u", so that the electric motor may sistance of about one hundred and forty-six start. ohms if a direct current of the same potential T20 The electric motor t is preferably of the be employed. For the alternating current series-wound type and is adapted for either above referred to a plug would be inserted direct or alternating current circuits, and in in socket q, thereby short-circuiting a large order to permit the motor to be operated upon portion of the resistance-coil, and if the mo- C circuits of various voltages and with either tor were then placed upon a direct-current 125 direct or alternating currents l have provided circuit of the saine voltage the plug would be a controller. (Illustrated more particularly removed from socket f1" and inserted in socket in Figs. l5, 1G, 1T, 18, and 21.) Said con- 1"', which would interpose a larger section of troller consists of a box e, of porcelain or l the resistance-coil in the circuit suiiicient to similar material, which is secured to the moi compensate for the change in current. 130

The operation of the apparatus, as above described, is as follows: The margin-stop D is adjusted to the desired position and the operator proceeds as in the usual course of writing. Upon reaching the end of the line the returnkey a is struck with substantially the same movement required to operate one of the printing-keys. The downward movement of the key a' carries with it lever Zi' by reason of the connection of key a with lever b/ by means of latch e. As key a reaches the downward limit of its movement latch e strikes detent t' and is rocked to disengage the notch in said latch from the pin on the end of lever The downward movement of lever pulls the locking-lever 'w downward against the tension of spring y, thereby moving pawl 50 out of engagement with ratchet f. The drum f being now free to move under the tension of its spring revolves toward the right and carries with it clutch-ring 0, which is forced toward the bandwheel r by virtue of the inclined slots p engagingthe pinsqin the periphery of the drum f, thereby causing the teeth on said clutchring to engage the corresponding teeth on the band-wheel and causing said band-wheel to revolve with the spring-drum and wind up the iieXible band n. The winding up of said band draws the paper-carriage to the righteviz., returns said carriage to its initial position and also moves the platen-spacing lever C against the tension of its spring to revolve the platen, and thereby space the paper for a new line. The descent of lever b draws down the bar /r against the tension of spring m and permits pawl 0 to slip over the end of said bar and hold the latter and the lever Z2' in depressed position. The pawl 0', as hereinbefore described, is moved into engaging position by the partial rotation of rod 12,' under theinfluence of spring t. This movement of rod n also throws the end q' of the stop p/ upward and into the path of movement of the detent r on the paper-carriage. The several parts, as above described, occupy the positions shown in Figs. L and 14 until the carriage reaches the end of its return movement-that is to say, until it reaches the point where it is about to be arrested by the margin-stop. This movement of the carriage causes the detent r' to strike the end q of stop p and rock rod a/ to move pawl 0 out of engagement with bar v, thereby permitting said bar to move upward Linder the tension of spring m and return the lever to its horizontal position, which' also causes lever w to move upward and engage pawl a with the ratchet f and arrest the movement of the spring-drum f.

It will be seen that the releasing of the spring-drum is effected by the operation of the release-key a and that the locking of the pawl in its released position and the subsequent rengagement of said pawl with the ratchet to stop the spring-drum is independand lever be released before the operator releases key a', however, the latter will be returned to its proper position upon release by the spring d', and thelatch c will again connect key a and lever b.

Vhen the carriage is arrested at the end of its return movement, the spring-drum f will be stopped in the manner above described. The momentum of clutch-ring 0, however. will usually be suflicient to cause the latter to revolve until pins q engage the opposite end of the inclined slots p, and thereby withdraw said clutch -ring from engagement with the band-wheel r. rllhe electric motor, however, continues to operate to fully restore the tension of the spring-drum in a manner fully set forth in my patents above referred to, and this operation need not, therefore, be more particularly described. When said electric motor has completely restored the tension of the spring-drum, however, and the circuit of said motor has been broken at the liber-block w, the field-coils of said motor are immediately denergized, thereby permitting the brake-shoes 7)" to move into engagement with the brake-disk a and instantly arrest the movement of said motor to prevent overwinding due to inertia of the motor and also to prevent the possibility of the conductorpin j passing beyond the fiber-block and overwinding the spring to the extent of another full revolution.

As the stop p is carried by the margin-sto p, it will be seen that the exact point at which said stop will be actuated to release the locking-bar and the stopping-pawl a; is determined by the position of the margin-stop D, which carries said stop 29', and it is obvious that the setting of the margin-stop at any desired point will d etermine the point at which the locking mechanism will be tripped to release the return spring-motor. As hereinbefore described, the detent fr is provided with an elongated end s, covering substantially ten letter-spaces along the scale. The object of thus elongating the detentor trip is as follows: When the operator desires to return the carriage from any point previous to the number l0 on the scale, (this being the usual paragraph-point,) it is always for the purpose of beginning a new paragraph. It would be impracticable to return the carriage prior to reaching this point by means of the returnmotor, as the apparatus would not have developed sufficient momentum to effect the linespacing and complete the return. Conscquently as the carriage moves over these lirst IOO IIO

YSO

spring-motor for an instant from the pawl .1,

and during this instant the said motor will wind up the traction-band w sutliciently to swing' the platen-spacing' lever to the right,

and thereby space the paper for a new line; but as the bar is immediately released thel pawl ,1' again engages the ratchet-teeth and arrests the spring-drum, and the carriag'e is not returned, so that the operator may at once continue his new line trom the paragraphpoint 10,?" moving' up to that point, it necessary, by striking' the usual tabular key E, which is provided for the ordinary marg'inspacing. lt will thus be seen that the carriage may be returned from any point along' the line beyond the number lO on the scale, and as within that point the operator always desires to start a new paragraph it is not necessary that the carriage be returned; but when he touches the return-key n' a new line is spaced and he may at once continue writing' on this line. lt is possible` ot' course, to secure the same result by providing' stop p with an elongated extension instead ot' the detent r', as it is only necessary that said stop and said detent be held in engagement Jfor a period ot' travel et the carriage equal to ten letter-spaces.

ln returning the carriag'e at'ter writing very short lines it sometimes happens that the clutch-ring' o does not attain sufficient momentum to release itseltl from the band-wheel r when the spring-motor is stopped, and thus the carriage is still locked with the return spring-motor. and the writing' cannot proceed until the band-wheel has been manually disengaged trom the clutch-ring. This diiculty is obviated by the spring-actuated clutch M, which locks the band v to the carriage. The failure of the clutch-ring to release a't'ter a short line has been written is sometimes due also to the tact that the carriage does not attain su tlieient momentum to permit said ring' to disconnect Vfrom the band-wheel before the spring which returns the spacing-lever to its normal position operates to throw said lever to the lett, draws the band backward, and causes the band-wheel to hold the clutch-ring in locked position. By interposing' clutchlever H' to lock the band l' to the carriage, the pressure ot the spring w operating' said clutch being' `inst sutl'icient to overbalance the spring' in the spacing-lever, the band between the clutch and the spacing-lever is held stationary until after the clutch-ring' o has been disengaged. By this means the release of the spring-motor will be effected with certainty and eti'icieney. The lower end ot' the clutchlever u', however, lies in the path of the margin-stop mechanism, as shown in Fig'. 12, and

from the beginning et' the new line. The operation ot' this clutch mechanism is as follows: Normally the clutch-lever 1/ grips the band i', as shown. When, however, the return-key is struck, the return spring-motor through the band-wheel draws the band through the clutch H' and swings the platen-siiacing lever C to the right, thus spacing' vtor a new line. As bet'ore described, the tension of the spring' w on the clutch is inst su tticient to overcome the tension ot' the spring' on the spacing-lever, so that said lever is held in its extreme right-hand position dm'ing the return ot' the carriage, and when the carriage reaches the end ot' its return movement and the clutchring n is unlocked there is no counteracting tendency ot' the spacing-lever to reverse the movement of the band-wheel and rengag'e the clutch, since the tension ot' the spacinglever spring' is counter-acted by the tension of the spring w' ot' clutch-lever M. \Vhen the clutch-lever i/ engages the margin-stop D, however, the band is released, and the platenspacing lever returns to its normal position under th'e influence ot its spring'. lt will also be :'xpparent that when in the advance of the carriage for a new line the end ot' the clutchlever u has passed out ot' contact with the margin-stop l) said clutch-lever will again grip the band i', and the mechanism will be ready tor a subsequent operation. 1n order to avoid any undue wear ot' the band '2' at the point where it is engaged by the clutch-level' ff, said band may be wrapped with line wire or other suitable protecting material.

Having thus described my invention, what l claim is- 1. A type-writer having a paper-carriage, a motor for returning the earriag'e to the beginning otl a line, a keV-released stop t'or said motor, means for locking the stop in releasing' position, and means on the paper-carriage for disengaging the lock to permit the stop to eng'age the motor.

2. A type-writer having a paper-carriage, a motor tor returning' the carriage to the beginning ot' a line, a stop t'or said motor, a keylever for releasing said stop, means Vtor locking said stop in releasing position, means on the paper-carriage t'or disengaging the lock to permit the stop to engage the motor, and connections between the key-lever and the stop to permit the latter to operate independently ot' the key-lever.

3. A type-writer having a paper-carriage, a motor for returning' the carriage to the beginning' o'tl a line, a pawl for stopping' said motor, a lever for releasing said pawl, a key for actuating the lever to release the pawl, a latch for connecting' the key and the lever, an abutment Vfor th rowing said latch to disengage the key and lever when the latter have been operated, a sliding bar connected to said lever, a pivoted pawl on the type-writer trame engag- IOO IIO

strikes this stop at the second or third letter l ing said bar to lock the lever when the latter has been depressed, and means on the Carriage to rock said pawl and release the lever when the Carriage returns to a starting-point.

4. A type-writer having a paper-carriage, a lever thereon for spaeing the platen and returning the carriage, a motor for returning' the carriage, a connection between the motor and the spacing-lever, a key-released stop for said motor, means for locking' the stop in releasing position, and means on the paper-earriage for disengaging the loek to permit the stop to engage the motor.

A type-writer havingl a paper-carriage, a lever thereon for spacing the platen and returning the carriage, a motor for returning the carriage, a band connecting the motor and the spacing-lever, a stop for said motor, a key-lever for releasing said stop, means for locking said stop in releasing position, means on the paper-carriage for disengaging the look to permit the stop to engage the motor, and connections between the key-lever and the stop to permit the latter to operate independently of the key-lever.

6. A type-Writer having a paper-carriage, a motor for returning the Carriage, a stop for said motor, a key-lever for releasing said stop, a sliding bar connected to said key-lever, a rod journaled on the machine-frame, a spring-aetuated pawl fast to said rod adapted to engage the sliding bar to look said bar and said stop in motor-releasing position, an adjustable stop on said rod, and a detent on the ear riage adapted to engage the adjustable stop to roek the rod and release the key-lever and the motorstop.

7. A type-writer having' a paper-carriage, a motor for returning' the carriage to the beginning of a line, a pawl for stopping said motor, a lever for releasing said pawl, a key for aotuating' the lever to release the pawl, a lateh for Connecting' the key and the lever, an abutment for throwing said lateh to disengage the key and lever when the latter have been operated, a sliding bar connected to said lever, a rod journaled on the machine-frame, a springactuated pawl fast to said rod adapted to engage the sliding bar to loek said bar, the pawl for stopping the motor in releasing position, an adjustable stop on said rod, and a detent on the carriage adapted to engage the adjustable stop to roek the rod and release the lever and motor-stop.

8. A type-writer having a paper-carriage, a motor for returning the carriage, a key-released stop for said motor, means for locking the stop in releasing position comprising' a sliding bar connected to the key, a rod journaled on the machine-frame, a spring-actuated pawl fast to said rod and engaging' said rod when the key is depressed, an adjustable margin-stop surrounding said rod, a stop fast to said rod and movably connected to said margin-stop, and a detent on the carriage adapted to engage the last-mentioned stop to roek the rod and release the key and motor-stop.

9. A type-writer havingapaper-earriage, a motor for returning the carriage, a platenspacing lever Connected to said motor, a keyreleased stop for said motor, a sliding bar Connected to the key, a rod journaled on the machine-frame, a spring-actuated pawl fast to said rod, a stop fast to said rod, and a detent on the carriage cooperating therewith to rock the rod, the stop on the rod and the detent on the carriage having a relatively long period otl engagement, whereby when a short line has been written, the motor may be operated to space the platen Without returning the earriage.

10. A type-writer having apaper-earriage,a motor for returning' the carriage, a platenspacing lever eonneeted to said motor, a keyreleased stop for said motor, a sliding' bar oonneeted to the key, a rod journaled on the machine-frame, a spring-actuated pawl fast to said rod, a stop fast to said rod, and an elongated detent on the carriage engag'ing the stop on the rod to hold the rod and its pawl in inoperative position until the carriage passes the paragraph-point, whereby when a short line has been written, the motor may be operated to space the platen without returning the carriage.

1l. A type-writer having a paper-carriage, and a spring-retracted platen-spacing lever, a motor for returning the Carriage, a bandwheel having a flexible connection with said platen-spacing lever, a eluteh for connecting the spring-motor and the band-wheel, a eluteh on the carriage for looking the iexible conneetion to the carriage, and astop on the machine-frame adapted to release the last-mentioned eluteh and permit the spacing-lever to return to normal position after the band has been released from clutched engagement with the motor.

In testimony whereoi` I aifiX my signature in presence of two Witnesses.

NEAL LARKIN ANDERSON.

Witnesses:

H. R. J oHNsoN, XV. R. MCDADE.

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