US368217A

US368217A - Printing-telegraph

Info

Publication number: US368217A
Authority: US
Publication date: 1887-08-16
Anticipated expiration: 1904-08-16

Description

(No Model.) 8 Sheets-Sheet 1.

J. H. LINVILLE.

PRINTING TELEGRAPH.

No. 368,217. Patented Aug. 16, 1887.

WITNESSES: INVENTDR.

8 Sheets Sheet 2.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

INVENTEIR.

WITNEEEEEI:

ammo/s 7mm. 1%

N. PETERS. Pnmumv mr. Wuhingion, u. c.

(No Model.) 8 Sheets-Sheet '3. J. H. LINVILLE.

' PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

TENS. Photo-Lithographer, waning o.

(No Model.) s Sheets-Sheet 4. J. H. LINVILLE.

. PRINTING TELEGRAPH.

N0. 368,217. Patented Aug. 16, 1887.

WITNEEEEE." INVENTEIR.

1%MM4 W N PETERS, vhomumo n w. Wuhington. 0.0.

8 Sheets-Sheet 5.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

i Ii T-.-w-: I .....W l m H M w IH LW MR INVENTUR M/M WITNEEEEE M MMv N, PETERS, Pholo-Lilho rlpfwr. Washington. D

8 Sheets-Sheet 6.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

INVE NTUR. J ZM Ma a W WITNEEEEE:

N. PETERS. muwumu m mr. Washingian. n. c.

8 Sheets Sheet 7 (No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

No. 368,217. Patented Aug. 16, 1887.

2% W E T V WITNESSES.-

INVE NTUR.

N PETERS. Photo Lflhagnpher, wmm mn, D c.

8 Sheets Sheet 2s.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

' INVENTUR. fi/iK/ WITNEEEIEE: M MW.

N. PETERS. Pinon-Lithographer, waahin wn, ac

UNITED STATES PATENT OFFICE.

JACOB H. LINVILLE, OF PHILADELPHIA, PENNSYLVANIA.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 368,217, dated August 16, 1887.

Application filed October 4, 1886. Serial No. 215,224. (No model.)

To all whom; it may concern.-

Be it known that I, JACOB H. LINVILLE, of the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Printing- Telegraphs; and I do hereby declare the following to be afull, clear, and exact description thereof, reference being had to the accom panying drawings, forming part hereof.

My invention relates, especially,to that class of printing-telegraphs operating automatically, either as transmitters or receivers, by electrical pulsations sent from any instrument organized as a transmitter over a conductor con nected with one or more similar instruments organized as receivers when the type-wheel Shaft is driven by any suitable motive power.

It relates, further, to the application of a motor to automatically wind a spring which rotates the typewheel shaft; in the use of two type wheels in page printing telegraphy whereby,through suitable shifting devices,the impressions upon the paper from either wheel may be made in the same continuous line; in improved apparatus for presenting the paper in page form from a continuous roll to the type-wheels, and in electromagnetic devices and circuits to operate the type-wheels to unison the type-wheels and papercarriages and to effect impressions.

The general object of my invention is to diminish the cost, to increase the rapidityand certainty of such apparatus, to obviate the necessity ofwindingthe motive power byhand, and to provide improved means ofmaintaining synchronism between the pulsator and the type-wheels of the instrument employed as a transmitter and the type-wheels of the instruments employed as receivers, whereby their synchronous movement is automatically adj usted, when necessary, once in each revolution by an electro-magnet responding to pulsations of twice the ordinary length required to rotate the typewheels, without retarding the regular motion of the type-wheels of the transmitter, and to effect the requisite operations over a main conductor by the aid of local batteries, using in all the operations currents of similar polarity.

My invention consists First, in the employment of an electrometor to automatically wind a spring interposed between a drum carrying a toothed gear-wheel engaging with a pinion on the type-wheel shaft and a shaft passing through the drum, around which aspring is continuously orinterniittently wound by means of a gear-wheel secured to said shaft through intermediary gearing driven by a pinion on the motor-shaft.

Second, in the peculiar construction of a table of insulated segments equal in number to the divisions of the type-wheels placed concentric with the type-wheel shaft,over which segments traverses a brush secured to a metal lic hub on the type-wheel shaft and insulated therefrom. An insulated contactspring in electricalconnection with the main-line circuit bears on this metallic hub. In the table of contacts, usually termed a sunflower, the segments are alternately connected by con ductors to open and closed circuit springs operated by the stems of the keys on thekeyboard,cxcept in one instance,whcre three consecutive contacts are connected with closed circuitsprings of the key-board. The anvils of the circuit-sprin gs are electrically connected with one another and with one electrode of the line-battery.

Third, in the use of a double-point relay with its coils in the main-line conductor, both in the transmitting and receiving instruments, the tongue of the double-point relay being connected with one electrode of a local battery, while its front and back contacts are respectively con nccted by conductors to the parallel coils of the escapement electrou'nagnets and to the other electrode of the local battery.

Fourth, in the use of neutral escapement clectro-magnets wound with parallel coils, between the poles of which eloctro-magnets polarized armaturcs are caused to vibrate in response to currents of similar polarity traversing the parallel coils in reverse directions.

Fifth, in the employment of two type wheels, one engraved with the letters of the alphabet, blanks, punctuation-marks, &c., and the other with numerals, fractions, conventional signs, blanks, &c., both being rigidly secured to a sleeve moving loosely on thctypewheel shaft, with means for shifting the type wheels vertically, and means for effecting the printing of letters, characters, and numerals in the same continuous lines and in page form on sheets of paper or from rolls of paper.

loo

IO continuous local current, due to the prolonged contact of the relay-tongue on the front stop during the'passage'of the brush over three successive closed circuit-contacts in the sunflower, is subdivided into three distinct impulses-one to energize the escapement electro-magnets and advance the type-wheels when the main line is closed, one which passes through the other coil of the esca'pement electro-magnets, reversing their polarity when the main line is ordinarily broken, and another which again reverses the polarity of the escapement electro-magnets when the main line is normally closed, whereby a regular succession of electrical impulses in the local circuits through the escapement electro-magnets is effected, permitting uninterrupted rotation of the type-wheels during a prolonged impulse over the main line, while at the same time the coils of the unison electro-magnet are included in the local circuit by the corrector during the time of two consecutive localcircuit pulsations through the escapement eleetro-magnets. The unison electro-magnet is preferably adjusted so as to respond only to such prolonged pulsations.

The motor, being constantly in the closed circuits of a local battery, winds the coiled spring until arrested by a Geneva stop, or by an electrical cut-out controlled by said Geneva stop, the coiled spring constantly tending to revolve the drum and gearing which turn the type-wheel shaft. The revolution of this shaft is controlled by an anchor-escapement, the pawl-lever of which carries a polarized steel armature, vibrating between unlike poles of two opposing neutral electro-magnets wound with two parallel coils. When the circuit of the main-line battery is closed through a sunflowercontact, the armature of the relay is attracted, and the circuit of a local battery is closed by the relay-tongue'through the front contact in one direction, through one of the coils of the escapement electro-magnets, which imparts motion to a polarized armature, permitting a movement of the type-wheel shaft correspond ing to one division of the type-wheels, and the contact-brush is thereby moved to an opencircuit segment of the sunflower, whereupon the main-line circuit is broken and the relaytongue falls against its back stop, closing the local circuit in a reverse direction through the second coil of the escapement electro-magnets, and thereby Vreversin g their polarity and moving the polarized armature in a reverse direction, permitting the type-wheel shaft to revolve another step, whereby the contactbrush'is placed on a closed-circuit segment and the previous. operation is repeated, the type-wheels continuing to rotate by the constant force of a coiled spring or other suitable power until a key is depressed, which causes two consecutive makes or breaks of circuit on the sunflower, thereby interrupting the alternate succession of makes and breaks of circuit and arresting the vibrations of the relaytongue in contact with either its front or back stop. The type wheels are consequently stopped at a character corresponding with the key connected to that segment of the sunflower on which the brush is arrested. When the key is released, the alternation of closed and open circuit contacts is restored and the type'wheel shaft continues to revolve until again arrested. The pulsations over the line operate the relays in one or more receivers,

the line passing around the sunflower and the key-board directly from one receiver to another in series and then to ground. The change from a transmitter to a receiver is effected by reversing an ordinary two-point switch. I

. The shifting of the type-wheels vertically is effected by a local battery the circuit of which is closed by the director at certain positions of the type-wheels through electro-magnets operating the shifting devices. Similarly, at other positions of the type-wheels, the local circuit is closed by the director through the impression and paper-feeding electro-magnets. The unison electro-magnet has a projection on its armature-lever normally in the path of a unison-arm attached to the type-wheel shaft,

and which projection will arrest the typewheels in the unison position unless withdrawn by a prolonged pulsation, occurring when the unison-arm arrives in contact therewith. This pulsation can pass through the coils of the unison electro-magnet only when a prolonged linecurrent energizes the relay electro-magnet and when the Corrector and type-wheels of the receiver are within one step of the unison position; hence if the typewheels of a receiver are not moving synchronously with the type-wheels of a transmitter they will be arrested on arriving at the unison position until a prolonged pulsation occurs in the main line at and just preceding the unison position of the transmitter, simultaneously releasing the unison-arms of both instruments by a pulsation in the local circuit through the coils of the unison electro-rnagnet of twice the duration of the normal pulsations which energize the escapement electro-magnets without checking the motion of the typewheels, as is the case where the unison and escapement electro-magnets both respond to the same prolonged impulses in the same line.

The paper is preferably fed from a continuous roll and spaced between the lines of printing thereon by the actionlof an electro-magnet operating devices different from those shown in my previous Letters Patent, and the papercarriages are brought into unison by continuing the pulsations until they are all arrested at the end of their forward movement, when all the carriages are simultaneously released by magnetic devices, which not only release the pawl and dog of the spacingrack, but also release a counter-pawl engaging in a counterrack introduced to promptly check the movement of the paper-carriage when advanced suddenly to space rapidly between letters.

An improved signaling device to indicate to the transmitting-operator when the paperearriage of the receiver has completed its recoil movement operates as follows: The mainline circuit is looped through spring-contacts normally closed at the transmitters and recei vers, and the key that is employed to close the main-line circuit and arrest the type-wheels at a blank space in position for the directors to close the local circuit through the electromagnets which operate to release the papercarriages short-circuits this loop at the transmitter. The paper-carriage of the receiver when recoiling separates these contacts, thereby momentarily interrupting the main-1i ne cireuit, and the relay-tongue consequently strikes its back stop, changing the local circuit through the cscapement electromagncts, and the type-whcels of both instruments consequently make one revolution, being again arrested when the brush reaches the segment of the sunflower connected with the depressed key. This abnornal movementof the type wheel will, with certainty, indicate the recoil of the paper-carriage of the receiver, and the operator will thus be enabled to correct any irregularity in the movement of the respective paper-carriages before printing a succeeding line.

My invention also comprises numerous de tails of mechanism hereinafter fully explained.

In the accompanyingdrawings, illustrating my invention, Figure l is a plan view of the key-board and paper-carriage and a plan of the interior of the apparatus below a horizontal plane cutting the instrument above the scape-wheel and the cscapement electro-magnets. Fig. 2 is alongitudinal section through the body of the key-board and instrument and a side elevation of the bracket and im pression eiectro-magnet and mechanical devices. Fig. 3 is a transverse section of the apparatus taken in rear of the type-wheel shai't. Fig. 4 is a horizontal section through the base of the instrument and through the bracket supporting the impression devices, and showing also a detail of the winding-drum and Genevastop cut-out. Fig. 5 is a rear elevation of the instrument. Fig. 6 is a top view oi'the box ofthe instrument and of the paper-carriage and impression devices. Fig. 7 is a detail of the respective disks and circuitsprings composing the director. Fig. 7 is a vertical longitudinal section of the director. Fig. '8 is a detail of the respective disks and circuit-springs composing the eorrector. Fig. 9 is a diagram indicating the direction of the current in an ordinary eleetro-magnet,with two cores united by apole-pieee. Fig. 10 is a diagram of the core and coil of an electro-magnet as ordinarily wound, showing the polarity when the positive current circulates in the direction indicated. Fig. 11 is a diagram of two electromagnets with opposing poles, the coils of which are all Wound similarly to the winding illustrated in Fig. 10, but with two parallel coils. The coils show the direction of the currents of similar polarity, and the resulting reverse polarity of the opposite poles is indicated. Fig. 12 is a diagrammatic view of the complete circuits of the line and local batteries through the circuit -eontrolling devices and electromagnets of an instrument organized as a transmitter, and Fig. 13 is a diagrammatic view of the complete circuits of theline and local batteries through the circuit-controlling devices and electro-magnets of an instrument orgauized as a receiver.

Referring to the drawings, 0 represents a suitable case inelosing portions of the instrument. A key-board, O rests on and is detachable from the case 0. The bed-plate O is secured to the case by lugs O, and on this bed-plate is constructed the removable upper case, consisting of the corner-pieces 0, posts 0 0", front plate, 0", top plate, 0 and beveled glass side plates, 0. By removing the long screws 0 the corner-pieces 0', may be taken out, and the glass sides may then be removed, affording access to the interior of the apparatus without removing the top plate, 0'.

On the base 0 is secured the plate 0, of insulating material, to which are secured the insulating-strips o", and to which the circuit springs 0 and 0", the anvil-bars o, and the stops 0" are fastened. The anvil-bars 0 are insulated from the keyboard Through the removable key-board O and the guides 0" pass the stems '0 of the open-circuit keys 0 and the closed-circuit keys 0. The stems of these keys are provided with helical springs 0 and with terminals 0,ot' insulating material, in contact with the circuit-springs o and 0'", and also with stop-pins 0, to limit their upward movement.

The anvil-bars 0 limit the down ward movement of the circuit-springs 0", and the stops 0 determine the movement of the circuitsprings 0". The keys 0 and o are engraved with letters of the alphabet, characters, numerals, fractions. punctuatiou-marks, (be.

The key 0 marked Up, is used to arrest the type-wheels at a predetermined point, in order to actuate the several devices to raise them. To lower the type-wheels, the key 0, marked Down, is employed. The key 0 is depressed when spacing between words or advancing the paper-carriage, the key 0 to feed the paper between lines, and the key 0 is depressed when it is desired to release the paper-carriage at any point in its excursion. The plate U is sustained by posts a, secured within the bcd-plate O, and forms the support for the type-wheel shaft B and the shaft 0. The flanged ring a is supported by the plate M, which supports the sunflower S.

The sunflower S consists of thirty-two metallic segments, as shown in Figs. 12 and 13, equally spaced around and concentric with the type-wheel shaft B. These segments are insulated from each other and from the bed-plate 0 The segments marked s are connected by the conductors 7 to the circuit-springs 0 and the segments s by the conductor 6 to the circuit-springs 0". Three successive contacts, 8 of the sunflower S are connected with closed circuit-springs 0 while all the remaining segments are alternately connected to circuitsprings 0 and 0". The metallic hub s is sccured to and insulated from the type-wheel shaft It, and carries an arm, 3, to which is adjusted the brush 8 hearing on and arranged to traverse the segments 5 and s when the type-wheel shaft revolves. The contact-spring s insulated at s from the instrument, bears on the metallic hub s and is in connection with the conductor 8 of the line-circuit. During the revolution of the type-wheel shaft and brush alternate makes and breaks of circuit of uniform duration will occur in the mainline circuit until the brush passes three successive closed contacts, which will then produce a prolonged impulse in the line-circuit without checking the regular progressive movement of the type-wheel shaft effected through the intervention of the corrector, as hereinafter more particularly described.

Rotary motion of the type-wheel shaft R is effected by the spur-wheel v,secured to the drum V, engaging in the pinion-wheel e" on the shaft It, the drum V being constantly revolved by a coiled spring, 12 secured to the interior of the drum and to the shaft o". This shaft '0" is constantly turned by a suitable motor, 0, through the intervention of miterwheels 1;" and o and a pinion, o", engaging in the spur-wheel 21, secured to the shaft 11", thus continuously winding the coiled spring o until arrested by a Geneva-stop pinion on the shaft o looking in its gear-wheel e on the spur-wheel'v, or, preferably, until the motorcircuit is temporarily interrupted at a predetermined point in the revolution of the Geneva stop. The cam '0 on the gear-wheel?) passes under the insulated pin 22", sliding in the metal wheelo' insulated from the shaft 12, and by raising the pin c, which impinges against the circuit-spring '0, lifts this spring clear of the metal Wheel '0 thereby interrupting the motor-circuit, which-is again closed when the drum V and spur-wheel o are advanced by the force of the coiled spring, and by which arrangement a uniform tension of the coiled spring 0 is maintained. The motor-circuit may be shunted in any well-known manner through a resistance equivalent to the combined resistance of the motor-armature and field-magnets. When the motor-eircuitistemporarily interrupted, the shaft o is prevented from recoiling by a click, a, engaging in the ratchet e on the shaft '0.

The step-by-step motion of the type-wheel shaft is controlled by a polarized armature, p, carrying pallets p and p, engaging in the scape-wheel p on the type-wheel shaft R. This armature is caused to vibrate by alternate reversals of the polarity in the adjacent poles of the double-coil neutralescapement electro-magnets I. 1?, P and 1?", due to the change of direction of the currents of similar polarity'traversing these coils. Alternate makes and breaks of the main-line circuit through the brush 8 respectively magnetize and demagnetize the relay D, causing its tongue d to vibrate between its front stop, d, and back stop, (i alternately closing the circuit from one pole of the local battery B through the corrector L and the electro-magnets 1, P, I, and P causing corresponding vibrations of the polarized armature p, and consequently a step-by-step movement of the scape-wheel p, type-wheel shaft R, and brush 8 as will be hereinafter more fully explained. Consequently when the switch \V is turned to the point 20, Fig. 12, and the point w, Fig. 13, and the circuit of the main-line battery B is thereby closed through the key-board and sunflower and the relay of the transmitter, and throughthe'relay to ground at the re ceiver, the relays of the transmitter and receiver willvbe simultaneously energized, and the type-whcels of both instruments will continue to revolve synchronously until the alternate succession of closed and open circuit contacts is interrupted, by depressing a key, 0 or 0, which causes the brush 8 to contact with two consecutive closed or open, circuit segments in the sunflower, arresting the vibrations of the relay-tongues d,and stopping the vibration of the polarized arniatures p and pallets p and p", and stopping the scapewheels 12 and type-wheels R and It at a character corresponding to the key depressed on both transmitters and receivers. \Vhen the key is released, the alternate succession of impulses in the main line is thereby restored, and the shaft It continues to revolve until again arrested by depressing a key or by breaking the line-circuit at the switch W, as hereinafter more particularly described.

The director M (shown in detail in Fig. 7 and in the dissected views in Fig. 7) is secured to the shaft R by means of hubs m and m, set-screws m and m", the pins on and m, combining the insulating -collars m and m with the hubs, and the insulating-sleeves m and m The metallic sleeves m and m are prolonged until they reach the separatingdisks of insulating material m' and m IZC The

' m The spring m bears on the sleeve m,

and springs on, on, and m bear, respectively, on the metallic disks m m and m". Similarly, the spring m bears on the sleeve m", and the springs m, m, and m bear, respectively, on the metallic disks m m", and 112. I have shown a corrector with thirty-two divisions, corresponding with the number of divisions on the sunflower and the number of characters on the type-wheels. These numbers must correspond in all cases; but a greater or less number in each would operate equally as well. There are thirteen exterior metallic contacts, m, on the disk on? and fourteen contacts, an, on the disk m at regular intervals on the periphery, except where one regular contact is omitted, as at m, m, m, and m. The contact corresponding to the division m is on disk on at m, and the contact corresponding to m is on disk at at m. The contact corresponding to the division m on disk m is at m on the disk m, and the contact corresponding to the division at on the disk at is on the disk m at m'. The contacts m on the disk m alternate with the contacts m on disk m and it follows that if the director M is stopped at any one of its thirty-two subdivisions electrical contact will be made through the particular spring resting on the contact corresponding with that subdivision, and the metal sleeve m or m and the spring m or m. and all other peripheral contactsprings will rest on insulated spaces separating the metallic disks.

The peripheral contact-springs m and m are in the local circuit of battery 13" through the coils of the electromagnets F, employed for moving the paper carriage to space between letters, and through the coils of the electro-magnet G, for making impressions. The spring at is in circuit with the coils of electro-magnet H for lifting the type-wheels, and the springm in the circuitof the electro-magnet H for lowering the type wheels. The spring at is in the circuit of the electro-magnet I for feeding the paper to space between lines, and the spring at is in the circuit of the electro-magnet J to release the dog f and the pawl f and counter-pawl f" from the spacing-rack f 5 and counter-rack f of the papercarriage at any point in its excursion. The peripheral contacts are shorter than the intervening insulations, so that the momentary closing of the local circuits during the rapid revolntion of the director is not of sufficient duration to energize the electro inagnets in circuit, so as to overcome their retractingsprings; but when the shaft R and the director M are arrested by the depression of any key the corresponding peripheral contact of the director rests under its respective circuit-spring, and a prolonged impulse results, strongly energizing the particular electro-magnet through the coils of which the circuit is thus directed.

The construction of the corrector L, which is secured to but insulated from the shaft R, is

similar to one division of the director M, as

illustrated in Fig. 7. The metal disks Z Z, and Z are in electrical contact with the insulated metallic sleeve Z, and are separated by insulatingdisks.

The spring Z in the circuit of the local battery B, through conductor 11, tongue (Z, and the front stop, d", of the relay 1), rests on the metal sleeve Z, and the spring Z" is in the circuit by the conductor 18 with a coil of the escapcment electro -magnets I, P, P and l? and with the spring Z through the metallic disk Z except at one division thereof,- where theinsulated space Z breaks this electrical. connection, and at the same time the circuit through the front stop, (Z, is diverted by the contact Z" on the disk Z through the spring Z" and the conductor 22 into the other coil of the escapement electro-magnets. At this particular subdivision of the corrector L, and for one subdivision previous thereto, the contact Z on the disk Z falls under the spring Z, and the circuit through the front stop, ZZ, is closed in a parallel circuit through the springs Z and Z" and one coil of the escapement electromagnets and the unison magnet Q during the time that the subdivision of L is passing under the springs Z", Z, and Z, and in parallel circuit through the springs Z and Z and the other coil of the escapement electro-magnets,and also through the unison electro-magnets Q, while the succeeding subdivision of the corrector L is passing under the circuit springs, thus alternating the two impulses of the local battery B through the escapement electro-magnet, and causing an impulse of twice the duration of one of the former impulses to energize the unison electro-magnet once in each revolution of the shaft R. The prolonged closing of the tongue (Z against its front stop, d, occurs when the brush .9 passes three successively-closed circuit-segments on the sunflower S, and this occurs only once in each revolution of the shaft R. The unison electromagnet Q attracts its armature q and thereby moves the stop (1 out of contact with the unison-arm q, secured to the shaft R,when ener gized by prolonged impulses. Since the prolonged impulse cannot occur unless at the time when the brush .9" is passing over the three consecutively-closed circuit-contacts in the sunflower S, the electro-magnet Q in the transmitters and receivers can release the respective unison-arms only at the unison position; and if the unisolrarm q of a receiver arrives at the unison position in advance of the unison-arm q" of a transmitter it will be arrested until the unison-arm q of the transmitter arrives at the unison position, when both unison-arms will be simultaneously released and the type-wheels of the respective instruments will start together in unison. The alternation of impulses of the local battery B, by means of the insulation Z, contact Z, and springs Z" and Z, effects a continuous rotation of the type-wheel shaft R, while the relaytongue (Z is in prolonged contact with its front stop, tZ-a resultimpracticable when the uni- IIO son electro-magnet is in the same line and responds to the same impulses as the escapement electro-magnet.

The apparatus for shifting the double typewheels R and B and for regulating the impressions will now be described.

The type-wheels R and R are rigidly secured to a sleeve, r, moving freely on the typewheel shaft R. The sleeve r terminates at its lower end in a grooved collar, 'r. A red, r", slides freely in the top plate, O and the bracket 0, and the arm r is secured to the rod 1" and projects at right angles therefrom, terminating in a fork with pins 'r, catching in the grooved collar r. A lever, h, is secured to the shaft h, supported in bearings h", and the lever h is pivoted at 'r to the rod 1", and a shorter lever, 7L, secured to this shaft 71)", projects horizontally therefrom, and at its extremity is linked a vertical bar, h, pivoted at its lower end by the eyebolt 71?, Fig. 12, to the armature-lever h of the electro-magnets H and H. \Vhen the electro-magnet His energized, its armature h is attracted, thereby raising the levers h and h", and consequently the rod r, arm r, sleeve 'r, and the typewheels It and R to the position as shown in Fig. 2. Conversely, when the electro-magnet H is energized and the armature h is thereby attracted, the type-wheels It and It are lowered, so that the upper type-wheel, R, is in the same horizontal plane previously occupied by the type-wheel R, directly opposite the center of the impression-hammer 9, so that both type-wheels will render their impressions in the same line.

The ink-roller r is long enough to supply ink to both type-wheels, and revolves freely on a pin, 1, on the arm 1". The arm 1' is loosely pivoted on the rod 1* and supported on a collar, T9, secured to said rod 1-. pressure of the ink-roller 0* against the typewheels R and It is effected by the spring 1- while the projecting end 1 of the arm 9 impinges against an adjusting-screw, 0*", when the ink-roller 1' passes over the blank spaces on the type-wheels. By this arrangement of the apparatus, as described, the ink-roller r "is simultaneously given the same vertical movement as the type -wheels R and R. I employ four printing-springs, two of which, r and r, are secured in the sleeve r" on the stud r, and adjustable by the nut r secured to the stud r, and the other two printingsprings, r and T are secured in the sleeve 9, and adjustable by means of the nut 1" on the stud r.

The printing-springs are shown in position in Fig. 3, with the type-wheels raised so as to take the impressions from the lower type-wheel, B In this position the printing springs r and r are opposite the space between the type-wheels. When the type-wheel It is in position for printing, the springs r and r are above this type-wheel and the springs r and r are opposite thespace between the typewheels. The printing-springs operate to pre- Constant vent imprcssions being taken from the typewheel that is not in the same horizontal plane with the printing-hammer g. The impression eleetro-magnet G is suspended from a curved bracket, .9 secured to the bracket 0. Its right-angular armature-lever g is pivoted at and is extended vertically, so as to impinge against the stem 9 of the printing-hammer g", and horizontally to carry the armature g. It is adjusted by a helical spring, and a stem, with a milled head, 9. The stem of the printing hammer passes freely through a sleeve, 9", the bore of which is enlarged to receive a coiled spring, 9 operating to give backward motion to the stem 9. When either type wheel R or R is arrested, with a character opposite the printinghammer g, and the electro magnet G is energized, as hereinafter described, it will attract its armature g, and the lever g, striking the stem y, will force the printing -hammer against the interposed sheet of paper T causing an impression thereon of the character presented. 1

The paper-carriage for supporting the roll of paper T and presenting it in a flat sheet, T in the rear of the type-wheels, consists,

mainly, of a curved plate, T to which are fastened the side bars, T and T, by means of the flanges T and T The paper T is guided upward on this curved plate T between the plate T and the guide-bars T and T. A red, T stays the upper extremities of the bars T and T and supports the fiat sheet of paper T The paper is delivered from the roller T*, held in brackets on the side bars, T and T, and is fed upward to space between lines by the feed-rollers I and I, revolved by the angular shaft 1. The rollers I and 1 are secured near the ends of and revolve with the shaft 1, suprollers and the feed-rollers I and I.

The angular shaft 1, included between the feed-rollers I and I is revolved by a loose- IIO flanged pinion, 2' sliding freely on the shaft I, and the spur-wheel i, which engagesin the pinion t, is fastened on one extremity of the shaft which is held in suitable bearings secured to the back plate, 0". On the other extremity of the shaft 13" is secured a ratchetwheel, 5", into which engages the hook-pawl i,pivoted in the extremity of the right-angular lever '5 which is rotated on a trunnion, i. A spring, i", attached to the lever itkeeps the hook-pawl i in contact with the ratchet-wheel 6 When the type-wheels are stopped at a blank space corresponding to the key 0 on the key-board O, the electro-magnet I is there upon energized through the local circuits hereinafter described, attracting its armature z, and thereby causing the hook-pawl t" to revolve the ratchet-wheel the space of one tooth, and consequently effecting a movement of the feed-rollers I and I", through the inter vention of the spur-wheel i and flanged pinion z' The relative proportions of the lever t ratchet-wheel spur-wheel i flanged pinion i, and feed-rollers I and I are such that the paper is, by one impulse through the coils of the cleetro-magnet I, fed upward the space between two lines at any point in the excursion of the paper-carriage. The paper-carriage moves laterally on wheels 15* and t", ruuning between the traekst and t, secured to the back plate, 0, and on wheels t and t, running on the lower track, i". To advance the papercarriage,a rack, f and a eonnter-raekj are employed, both attached to the bars T and T of the carriage.

The pawl f, pivoted at the extremity of the armaturelever f of the electro-magnet F, engages in the rack f and the counter-pawl f", pivoted on a fixed centcr,f, and coupled to the stud-screwf" by the link f, engages in the counter-rack f when the armature-lcver f is retracted by its helical spring f Vhen the electromagnet F is energized, attracting its armature f, the counter-pawl f 9 is thrown away from the counter-rackfl At each throw of the rackf by the pawl f the counter-pawl f suddenly arrests the rack f at the precise point required to space between two letters, while the dog f, catching in a tooth of the rack f prevents a retrograde movement thereof. The electro-magnet F is energized, as will hereinafter be more fully explained, when the type-wheel is arrested at any character or at a spacing-blank. The electro-magnet J is employed when energized to attract the armature j on the short lever j, secured to the shaft j, as shown in Figs. 1, 3, and 4. The long lever j is secured to the shaftj at a higher plane and just below the plane of the pawl f dog f and counter-pawlf. A bar, j, passing under these pawls and dog, has a pin, j, passing up behind the dog f, a pin, j, behind the pawl f and a pin, j, behind the counter-pawl f, and the bar j is pivoted to the extremity of the lever j. \Vhen the key 0 is depressed and the eleetro-magnet J is energized, as hereinafter more fully described, and attracts its armature j" on the leverj, the shai'tj is slightly revolved, imparting angular motion to the long leverj and thereby causinglongitudinal movement of the ba1'j ,wl1ich, by means of the pinsj, j, and j, releases the pawl f and the dog f from the rack f and the counter-pawl f from the counter-rack f thus permitting retrograde movement of the paper carriage, which is solicited by the weight t, hung to the cord 19", passing over the pulley and attached to the arm t, sesecured to the paper-carriage. Thekeyo can be operated at any position of the paper-carriage to release the carriage at any pointin its forward movement. I

The bent arm t is attached to the base 0, and through the extremity of this arm passes the adjusting-screw I), limiting the movement of the spring if, secured to the arm 15. The

buffer i secured to the side bar, T, impinges against the spring t, which strikes the set screw it, the resilience of the spring 1. thus neutralizing the shock, and the set-screw t limiting the retrograde movement of thepapercarriage.

To indicate by signal to the operator at a transmitter when the paper-carriage of a re ceiver has completed its retrograde movement, the following devices are employed: The bent lever 15, Fig. 5, is pivoted at in the bracket t, rising from the arm 1. A contact, t, is insulated from the arm I by theinsulation f, and a contact, t, is insulated from the bent lever t by the insulation '6". The conductor 2 of the main line is attached to the contact t, and the conductor 3 of the main line is attached to the contact i In Figs. 12 and 13 are shown the releasing-key o in connection with the main-line circuit. In a cut-out circuit, 49 and 50, are placed the contact-

springs

0 and 0", with the contacts separated and the springs insulated from each other by a block 01' insulating material, 0'. From the stem 0 of the key 0 extends an arm, 0, which impinges on the insulation 0 on the spring o when the key 0 is depressed to release the paper-carriages. Since the key-board of the instrument used as a receiver is cut out of the line-circuit when the switch 7 is on the point 10, Fig. 13, and the key-board of the transmitter is in the en'- cuit of the main line when the switch \Vis on the point 10, Fig. 12, thedepression of thekey 0 at the transmitter will shortcircuit the portion of the line-conductors S and 2 between key 0 and the contacts 13 and t, rendering the device for breaking the line-circuit at the contacts 25" and If inoperative at the transmit ter. The pawl t", hanging from the arm t secured to the side bar, T, and pivoted loosely at t and stopped by the pin 25, trips the bent lever 15", separating the contacts Wand if, when the paper-carriage recoils, thus breaking the main-line circuit in the

conductors

2 and 3 at the receiver, as shown in Fig. 13. Thekey 0" is an open-circuit key, and the relays D in the main line are energi'zed,while thekey 0" is de pressed,closing the main line during the retrograde movement of the paper-carriage ol a transmitter and a receiver coupled in circuit, as shown in Figs. 12 and 13. The momentary interruption ot'this circuit by the separation of the contacts t and t when the pawl t strikes the arm i allows the relay-tongues d to close the contacts d against the back stops, (1", diverting the local circuit through the other coil of the escapcment electro-magncts 1, 1, P and P, which permits the rotation of the type-wheels preeisel y the same as if the key 0 had not been depressed. The type-wheels will again, however, be arrested when the brush e arrives at the segment of the sunflower S,connected with the key 0. If this key has not in the meantime been released, and this revolution abnormally produced, will evidently indicate that the papercarriage of the receiver has rccoiled, thus enabling an operator to maintain synchronous movement of the paper-car riages of both the transmitter and receiver.

The paper-carriages of a number of receivers may be brought into unison with that of the transmitter by stopping the type-wheels at the blank for spacing between words. At each period when a blank space is made the paper-carriages will move forward a step until their forward movement is arrested. If such movement of thetype-whcels be continued,any carriage that may have beenretarded may be brought to the end of its forward excursion, when, by depressing the releasing-key 0 all the paper-carriages may be simultaneously released. The hanging pawl t" rides freely over the bent lever when the papercarriage is advanced.

In Fig. 10 is indicated the core of an electromagnet wound overhand,with the heel end at the left and a positive current circulating in the direction indicated by the arrow therein will produce a south pole, S", at the armature end. If two similarly-wound cores are con-' nectcd,as is usual,and as is shown in Fig. 9, a positive current will circulate around these cores in the direction indicated by the arrows, producing a south pole, S", at the heel end of the left-hand core and a north pole at the heel end of the right-hand core, and when united by a yoke in the usual manner the combined magnet will have reverse polarity at the armature end of the cores.

In Fig. 11 are shown two U electro-magnet with confronting poles, the cores of which magnets are wound with two separate coils so connected to one another and to the respective conductors that a positive current will circulate around the respective cores in the direction indicated by the lines x as".

Thehelical line 00 indicates the direction the positive current will circulate around the cores to produce the confronting poles S" and N, and the line 00 indicates the direction the positive current will circulate around the cores to produce in the confronting poles the polarity indicated by S and N,indicating,respectively, south and north polarity; The double coils of the eleetro-magnets P, P, P, and 1 are connected in circuit, so that the currents circulate as indicated by the line .00 x in Fig. 11.

The operation of the electro-magnets and mechanical devices and the course of the electrical circuits in a transmitter and a receiver when the switch WV is turned to the point 10, as in Fig. 12, and the switch WV is turned to w, as in Fig. 13, will now be described. Since the transmitters and receivers are similar in every respect, and can be operated interchangeably by reversing the position of the switches W, similar letters'and figures have accordingly been employed to designate similar devices and circuits in Figs. 12 and 13.

In Fig. 13 the conductor 8 is broken at w, the switchVV cutting out of circuit the

contactsprings

0 and 0 and segments of the sunflower S, while in Fig. 12 the conductor 3 is broken at w, and the segments of the sunflower S and the contact-springs o and 0 are in circuit. The relay-magnets D in both instruments respond simultaneously to all impulses in the main line, and all other magnets in both instruments respond similarly to simultaneous impulses of the local batteries when their circuits are closed through the relay tongues and by either the director or corrector.

It will of course be understood that the magnetic devices and circuits in both instruments will operate simultaneously, and hence the description of their operation hereinafter given refers to both the transmitting and receiving instruments. H

The type-wheel shafts It and the brushes 8 revolve to the left, as indicated by the arrows. Starting with the brush 3 of the transmitter, Fig. 12, arrested on a closed-circuit contactthat is, the first segment marked 8" in its path and direction of rotation-and assuming that the closedcircuit spring 0 has been depressed by its key 0 interrupting the line-circuit at the anvil-bar 0, the mainline circuit may be followed from earth at A, Fig. 12, by the conductor I to the negative electrode of the battery B, from the positive electrode by the conductor 2 to the contact t, thence by the contact and the

conductors

3 and 4 to the anvilbar 0, and by the conductor 5 to the anvil-bar 0. The main-line circuit is broken at the anvil-bars 0 and at the suntlowensegments s, connected to the springs 0, until a key, 0, is depressed to cause a spring, 0", to make a contact with the anvil-bar 0 and the brush 8 is over a corresponding segment, 8 The circuit is normally closed at the contact-springs 0 through any segment a over which the brush 8 passes; but it has been assumed that the key 0 has been depressed and the brush 5 is over the first segment marked 8, connected to spring 0", and consequently the main-line circuit is interrupted at both ends of the conductor 7, attached to the springs 0 and the segment 3 The circuit continues from the contact-spring 0 by the conductor 7, segment 8 brush 8, arm 8 hub 3, spring 8', and the conductorS to the point 10, and by switch W and conductor 9 to the coil of the relay D, through the same and conductor 10 to the coil of relay D inFig. 13, and by the conductor 9, switch W, point w, and conductor 3 to the contacts t and t, thence by the conductor 2 to earth at A. The circuit being interrupted at the anvil-bar 0, the tongues of the relays D are against their back stops, (Z and the circuits of the local batteries B are completed from the positive electrodes of the batteries B through the con ductors 11, relay-tongues (I, back stops, d, and conductors 12 to one of thecoils of the electromagnets P conductors 19, coils of electromagnets 1?, connections 13, coils of electro' magnets P, connections 36, coils of electromagnets P, and by the conductors 14 and 16 to the negative electrodes of the batteries B. The local circuits being thus closed, the electro-magnets in circuit are energized by the positive current in one of the two parallel coils attracting the polarized armatures p to the poles of, say, P and P, the pawls p engaging in a tooth of the scape-wheels p and arrest ing the type-wheel shafts R and the correctors L one step back of the position shown in Figs. 12 and 13. The springs Z therefore rest on the metallic portion of the disks Z. If the key 0 be released, the main-line circuit 10 just described will be closed by the spring 0 impinging on the anvil-bar 0, the relays D will be energized, attracting their armatures (Z, and the local circuits will be closed from the positive electrodes of the batteries B, in a manner as already described, through the relay-tongucs (Z, thence through the front stops, (Z, conductors 17, springs Z, sleeves Z, disks Z", springs Z, (still resting 011 the metallic disks Z1) conductors 18, the other parallel coils of electro-magnets P, connections 35, parallel coils of the electro-magnets P connections 20, parallel coils of P, connections 51, parallel coils P, and by the

conductors

21, 15, and 16 to the negative poles of the batteries B. The electro-magnets P, P, P, and P, in circuit, being energized by a positive current through the second parallel coils now in circuit, (the first coil being in the circuits interrupted at the back stops, Z the confronting poles are there by reversed and the polarized armatures p are attracted to the poles of the electro-magnets P and P, releasing the pallets p and causing the pallets p to engage in the next adjacent teeth of the scape-wheelsp, thus permitting the type-wheel shafts It to advance one thirty second of a revolution by the action of the coiled springs c. The brush 8 of the transmitter will now rest on the second segment 8, still in connection, by the conductor 7, in a closed circuit of the main line, as previously described, and the relay-tongucs (Z still remain in contact with their front stops, (Z; but the local circuits of the batteries 13 are now reversed by the correetors L, the circuit being from the front stops, (If, through the conductors 17, springs Z", sleeves Z, contacts Z of the disks Z, (springs Z" and conductors 18 being cut out of circuit by the insulating-spaces Z,) springs Z,and conductors 22 to a junction with the conductors 12, the circuit of which is now interrupted at the back stops, (Z thence, by a portion of the conductors 12, to the electro magnets P thence through the coils of the electro-magnets P, P, and P, and connections 19, 13, and 36, and by the conductors 1 1 and 16 to the batteries .3. The polarized armatures p are again attracted to the poles of the electro-magnets P and P, and the type-wheel shafts It move another thirty-second of a revolution, throwing the brush 8 on the third seg ment marked 8 which being in a closed circuit, the relay-tongues (Z still remain against the front stops, (Z; but, the correetors L having moved one division, the last-described local circuit is closed through the front stops, cZ,conductors 17, springs Z, sleeves Z, metallic disks Z springs Z, and conductors 18, &c., as previously described, and the polarized armatures are again attracted to the poles of electro-magnets P and P, releasing the pawls p and the type-wheel shafts R, and the brush 8 of the transmitter advances another step, as before mentioned, which throws the brush 5 on an open-circuit segment, 8, of the sunflower S; and since all remaining segments are alternately open and closed circuit contacts, the typewhecl shafts It, solicited by the springs 22, will continue to revolve step by step as the scape-wheels p are released by the vibra tion of the polarized armatures p until arrested by the connection of two consecutive open or closed circuit segments of the sunflower S, produced by the depression of a key, 0 or 0.

In the first two positions of the correetors L, hereinbefore described, while the brush .9 was on two consecutive segments 8 s and the current was prolonged through the front stops,

(Z, of the relays D, the branch circuits of the batteries B were completed from the sleeves Z, through the contacts Z on the disks Z, springs Z, conductors 143, the coils of electro-magnetsv Q, and conductors 2 1, 15, and 16 to the negative electrodes of the batteries 3, and the electro magnets Q were energized by a pulsation in duration equal to two pulsations through the electro magnets P, P, P, and P, attracting their armatures q and withdrawing their arms q" clear of the unison-arms without checking the type-wheels. Since such prolonged pulsations in the circuit of the electro-magnet (g in a receiver can occur only when the brush 8" is passing the first two segments a in a transmitter, it is evident that if the typewheels It and ll) of the instruments are not in unison the unison-arm of the receiver will be arrested at the unison position until the brush 8 of the transmitter passes over the second segment 8 when an impulse of double the duration will simultaneously release the unisonarms of both the transmitter and receiver, and the type-wheels It and Pt of both instruments will again revolve in unison.

Continuous rotation of the type-wheels It and R is maintained during the continuation of the impulses over the main line, as already described, by the force of the springs e, which are wound by the electromotors O. The 1110- tors O are in the circuits of the batteries B in both transmitter and receivers, or they may be, if so desired, in the circuits of independent batteries. The circuits originating at the positive electrodes of the batteries B are by conductors 25 to one of the field-magnet coils, thence to the opposite field magnet coils, thence by the conductors 26 to the brushes a through the coils of the armatures c to the brushes 0, thence by the conductors 27 to the springs c, Fig. 4, through the springs o and the insulated metallic disks if", springs '0', and by the conductors 52 and 16 to the negative electrodes of the batteries 3. When the springs o are wound up to a certain tension, the inclined surface of the cams e lift the pins o made of insulating material, raising the springs e out of contact with the metallic disks 12 and the circuit just described being thereby temporarily interrupted, the motors O are stopped, or otherwise they may be arrested by the Geneva-stop pinions a locking in the stop-wheels c The line-circuits of the batteries Band also the local circuits of the batteries B, which op erate the motors G and the escapement and unison electro-magnets P, P, 1?, P and Q, act in the manner already described to control the type-wheels R and R. In the operations of printing, of moving the type-wheels, and of feeding and releasing the paper-car riages the circuits from the auxiliary batteries B may be employed. The circuits through the dotted conductors 46, 47, 48, and 32 are in this case to be considered as disconnected or inopera tive. When any character-key o is depressed,

. asegment, 8, following a closed-circuit segment 8', will be placed in a closed circuit through the conductor 6, and when the brush 8 is in contact with this segment the tongues of the relays D will be held against their front stops, the consecutive order of makes and breaks over the line having been interrupted by closing the circuit at the anvil-bar 0 and the spring 0 by the open-circuit key 0. The type-wheels R and R will therefore be arrested with a character corresponding with the character on the particular key 0 which has been depressed and facing the paper T directly opposite the printinghammers 9". When any character on the type-wheels, or the blank space thereon for spacing between words, is presented to the printinghammers, the directors M are in such relative angular position that the circuits from the batteries B which are permanently in closed circuits from the positive electrodes through the conductors 28 and 45 to the springs on sleeves m, Figs. 12, 13, 7, and 7, and conductors 28 and 33 to the springs m" and the sleeves m will be completed from the sleeves m and at, through the springs m or springs 112*, according as the printing-contacts m on the disks m or the printing-contacts m on the disks m are under these springs in both the transmitter and receivers.

In Fig. 7 contact m falls under a springmt, and the circuit continues from the sleeves m, disks m, contacts m, springs m, conductors 29, coils of the eleetro-magnets F, conductors 30, coils of the electro-magnets G in both instruments, and to the negative electrodes of the batteries I? by the conductors 31 32, and the electro magnets F consequently attract their armatures f, causing the pawlsf to engage in the next adjacent tooth, respectively, of the racks f while the counter-pawls are, by the action of the links f ,thrown out of contact with the counter-racks f l of both transmitter and receiver. The electro-magnets G, being energized, attract their armatures g, and the extremities of their levers g consequently strike the stems g, forcing the printing-hammers 9" against the paper T and effecting thereon simultaneous impressions of the character presented. When the open-circuit key 0 is released, the circuit through the segment and brush is interrupted at an anvil-bar, 0 and spring 0, and the relay-tongues d fall against their back stops,d", permitting motion of the scape-wheels p, and the directors M consequently interrupt at the contacts on the circuits just described through the electro-magnets F and G. The .armatures g are therefore withdrawn by their retractingsprings' g, and the printing-hammers g are withdrawn by the helical springs 9 encircling the stems g. The armaturesf are withdrawn by the retracting-springs f attached to the levers f, which, by their pawls fflengaging in the racks f move the paper-carriages to space simultaneously between two letters, while the counter-pawls f", engaging in-the counterracks f limit the movement of the paper-earriages. The type-wheels R and R continue to revolve, and,the contacts m and on being short, the momentary closing of the circuits through the electro-magnets F and G is not of suffieient duration to energize these electromagnets so as to attract their armatures. If a key, 0, is depressed, a segment, .9 connected to an open-circuit spring, 0", will be succeeded by a segment, s, the circuit to which, through the conductor 7, will be interrupted at the anvil-bare and spring 0", and, the relay-tongues d remaining against their back stops, (1 the brush 8 will be arrested over the segment s in connection,by a conductor, 7, with the particular key 0 depressed. The relay tongues being thus arrested on their back stops, (P, a character on the type-wheels corresponding with the key 0 depressed will be presented to the printing-hammers g", as hereinbefore described; but the local circuits of the batteries 13 will now pass from the directors M, by the sleeves m, contacts m on the disks m springs m, and conductors 34 ,to the electro-magnets F, and by the conductors 30 to the electro-magnets G, thence, as previously described, to the nega tive electrodes of the batteries B, while the springs m will rest on insulating-spaces m on the disks m thus interrupting the circuits through the springs m and the conductors 29. Another impression will consequently be made, and upon releasing the key 0 the circuit of the main line will be closed through the spring 0" and anvil-bar 0 and the typewheels will again be rotated, as hereinbefore mentioned.

To elevate the type-wheels, as shown in the position indicated in Fig. 2, the key 0 ,which is an open-circuit key, is depressed, closing the circuit at the anvil-bar 0 by the springs 0. The type-wheels are arrested with the blank spaces on both the type-wheels R and It opposite the paper T and thelocal circuits of the batteries 13 are closed by the directors the coils of the electromagnets II, thence by the conductors 38 and 32 to the negative electrodes of the batteries BZwhile all the springs m, m, in, in, and in bear on insulating ma terial on the peripheries of their respective disks. The electromagnets II will alone be energized, attracting their armatures if, and elevating vertically the bars h, which rock the shafts h by means of the levers h elevating the extremities of the levers h", which control the movements of the rods 1, carrying the forked arms 1", provided with pins 1, which engage in the grooves o" of the sleeves a, carrying the type-wheels It and R The inkrollers r are carried on the arms a, supported by the collars 0-" on the rods 0", and consequently the ink-rollers 1' move in a vertical direction with the type-wheels. Upon releasing the key 0 the type-wheels It revolve in position to give impressions, and the springs r 1' and r prevent impressions being made by the type-wheels It. To lower the type-wheels,so that impressions may be taken from R, the key 0 which is a closed-circuit key, is pressed, breaking the circuit at the anvil-bar 0 and spring 0" of a closed-circuit key. The type-wheels are arrested with another blank space corresponding to the key 0 facing the paper T and the circuits of the local batteries B are completed through the' directors M by the contacts m through the springs in, conductors 39, coils of the electromagnets H, and conductors 40 and 32 to the negative electrodes of the batteries I3 energizing the el'ectro-magnets H, and thereby attracting their armatures h, which draw down the bars Jr and lower the type-wheels and inkrollers, so that the type-wheels R will be in the same horizontal planes as the printinghammers g". Releasing the key 0 causes the typewheels to continue to revolve until stopped by the depression of another key.

To space between lines at any point in the excursion of the paper-carriage, the key 0" is pressed, whereupon the typewheels are arrested with a corresponding space presented to the paper T, and the local circuits of the batteries B are closed through the directors M, contacts m on the disks m, springs m, conductors 41., coils of the electro-magncts I, and conductors 42 and 32 to the negative electrodes of the batteries I3 in the transmitters and receivers, thereby energizing the electromagnets 1, which attract their armatures t, revolving the bent levers on their trunnions t, and causing the hook-pawls i to revolve the ratchetwheels one notch.

The ratchet-wheels are secured to the shafts i, which carry spunwheels 1' engaging in flanged pinions 2", moving loosely in a 1011- gitudinal direction on the angular shafts I, which carry on their extremities short feedrollers 1 and I, pressing against the under side of the paper while the rollers I and I bear on the paper over the rollers I and I and are drawn downward by the springs t", and therefore it follows that the rotation of the ratchctwheels the space of one notch in each will, by proper proportion of the gearwheels and feed-rollers, cause the paper to be fed upward the desired space between two lines. Vhen the key 0 is released, the circuits through the electro-magnets I are interrupted by the movement of the directors M,and the retracting-springs i withdraw the armatures i, throwing forward the bent levers t and causing the hook-pawls 2'', held in contact with the ratchet-wheels by their springs i", to engage in another tooth in each of the ratchet-wheels.

To release the pawls f and dogs f from the racksf and the counter-pawls f" from the racks f, the key 0 must be depressed. Corresponding with this key there is a blank on' the type-wheels It and IV, and when they are arrested with the blank opposite the printing hammers g" the circuits of the local batteries B are closed by the directors M, through the contacts in on the disks in, springs m, conductors 43, the coils of the eleetro-magnets J, and conductors 44 and 32 to the negative electrodes of the batteries B The eleetro-mag nets .I are thereby energized, attracting their armaturcsj attached to the lever j, drawing forward the bars j, and causing the pins j", j, and j to release the pawlsf and dogsf from the racks f and the countcr-pawlsf from the counter-racks f of the respective carriages. The paper carriages thereupon are free to move backward, solicited by the cords t and weight '6. YVhen the hanging pawls If" strike the bent levers t, the main-line circuit is interrupted between the contacts t and I of a receiver, and the type-wheels of the respective instruments make one revolution, as hereinbelore described, thereby signaling the completion of the retrograde movement of the respcctive paper-carriages.

In the local circuits of the batteries 13" the conductors 46, 47, and 48 were excluded. the conductors 28, 33, and 45 from the nega tive electrodes of the batteries IV, Figs. 12 and 13, to the springs m and m" be omitted, and the conductors 46 from the positive electrodes of the batteries 13 be connected through the conductors 16 to the negative electrodes of the batteries 13, the batteries 13 and 13 will be combined, and if the positive electrodes of the batteries B be connected to the springs m by the conductors 47, and the springs in" by the conductors 4-7 and 48, the respective circuits of the electro-magnets F, G, H, H, I, and J will be closed whenever closed by the directors M in parallel circuits with the circuits of the elcctro-magnets P, I, P and I and pan allel with the circuits through the electromagnets Q whenever their circuits are closed by the cor-rectors L.

I do not limit myself to any specific disposition of the local batteries and circuits, since it will be obvious to those skilled in electrical science that separate or combined batteries may be employed with the director M and correetor L to prod uee the desired result; nor

ICC

do I limit myself to the use of three successive closed-circuit segments in a sunflower, the other segments of which are alternately connected in open and closed circuits of the main line, as these are unnecessary, and all the seg ments may be alternately connected in open and closed circuits except when employed in connection with the unison electro-magnet Q, responding to prolonged impulses.

I contemplate using printing and ratchet electro-magnets responding to prolonged pulsations in the same circuit with the escapement electro-magnets without the intervention of a circuit-director.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of a line battery and circuit, a sunflower having segmental contacts alternately in open and closed circuits with contact-springs, a type-wheel shaft and motive power for rotating the same, a brush secured to and insulated from said type-wheel shaft and traversing said segmental contacts, a re- V lay electro-magnet in said circuit and its armature-lever provided with double contactpoints, front and back stops on which said contact-points impinge, parallel-coil-neutralescapement electro-magnets and a polarized armature controlled thereby, a local-battery circuit closed by said relay alternately through the parallel coils of said electro-magnets in reverse direction from the same electrode of said battery, said polarized armature carrying pallets, and a scape-wheel on said type-wheel shaft controlled thereby, substantially as and for the purposes set forth.

2. The combination of a line battery and circuit, a sunflower with contacts alternately in open and closed circuits of said line,a typewheel shaft, an electromotor for winding a coiled spring for rotating said shaft, a brush secured to and insulated from said type-wheel shaft, a double-point relay with its coils in said circuit, double neutralescapement electromagnets wound with parallel coils and a polarized armature controlled thereby, and a local battery circuit alternately closed by said relay through parallel coils of said escapement electro magnets in reverse direction from the same electrode of said local battery, said polarized armature carrying pallets controlling a scapewheel secured to said type-wheel shaft, substantially as and for the purposes set forth.

3. The combination of a mainline battery and circuit-keys with open and closed contactsprings in the circuit of said battery, a sunflower with contacts electrically connected alternately in open and closed circuits with said contact-springs, a brush for traversing said contacts, a type-wheel shaft and motive power for actuating said shaft, a double-point relay in said main-line circuit, a local-battery circult and neutral-escapement electro-magnets wound with parallel coils included therein, a polarized armature controlled thereby, said double-point relay closing the circuit through the same electrode of the local battery alternately in reverse direction through the parallel coils of said escapement electro magnets, the polarized armature carrying pallets, a scape-wheel on said type-wheel shaft controlled by saidpolarized armature, and printing and ratchet electro-magnets with their armatures, levers, and retracting-springs, said electro-magnets energized, respectively, by the circuit of said local battery, substantially as and for the purposes set forth.

4. The combination, substantially as hereinbefore set forth, of a main-line battery and circuit, keys with open and closed contactsprings in the circuit of said battery, a sunflower with segmental contacts electrically connected alternately in open and closed circuits with said contactsprings, a brush traversing said contacts, a type-wheel shaft and motive power for actuating said shaft, two type-wheels secured to a sleeve on said shaft, a double-point relay in said circuit, a localbattery circuit, neutral-escapement electro magnet-s included therein, a polarized armatnre controlled thereby, a circuit-director on said type-wheel shaft, springs bearing on the hubs and the disks carrying insulations and contacts for closing the circuit of said battery, two independent electro-magnets in separate circuits connected with two of the disks of said director, and their hinged armatures, lever, shaft, and lever-arms for raising and lowering said type-wheels.

5. The combination of a main-line batterycircuit, keys with open and closed contactsprings in the circuit of said battery, a sunflower with contacts electrically connected alternately in open and closed circuits with said contact-springs, a type-wheel shaft and motive power and devices for rotating the same, two type-wheels secu red to a loose sleeve thereon, a double-point relay in said circuit, a local-battery circuit, neutral-escapement electro-magnents therein, a polarized armature controlled thereby, a circuit-director secured to said type-wheel shaft, springs bearing on the hubs and respective disks of said director, carrying insulations and contacts for closing the circuits of said battery, two independent electro magnets in separate circuits with said director, said electro-magnets, with their hinged lever, armature, shaft, and lever-arms,

operating to shift said type-wheels, and ratchet and printing electro-magnets with their armatures, levers, and retracting-springs, said elec tro-magnets energized by impulses in the circuit of said local battery, substantially as and for the purposes set forth.

6. The combination, substantially as hereinbefore set forth,of aline-battery circuit, keys with open and closed contact-springs inthc circuit of said battery, a sunflower with con tacts electrically connected alternately in open and closed circuits with said contactsprings, a type-wheel shaft and motive power for retating the same, a doublepoint relay in said circuit, a local-battery circuit, neutral-escape- IIS'