US325702A - sheehy - Google Patents

Description

(No Model.) 5 Sheets-Sheet, 1.

R. J. SHEEHY.

PRINTING TELEGRAPH. No. 325,702. Patented Sept. 8,- 885.

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R. J. SEEP-HY. PRINTING TELEGRAPH.

No. 325,702. P tented Sept. 8, 1885.

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R. J. SHEEHY.

- PRINTING TELEGRAPH.

No. 325,702. Patented Sept. 8, 1885.

WITNESSES INVENTOR ByhiS .dliorneys lioberzlslwdg) N. PETERi Phob'bnhwgnphu. Wnhingon. O. C-

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ROBERT J. SHEEHY, OF NEW YORK, N. Y.

PRINTING-TELEGRAPH.

SPECH-ICATION forming part of Letters Patent No. 325,702, dated September 8, 1885.

Application filed April 10, 1883.

To all whom it may concern:

Be it known that I, ROBERT J. SHEEHY, a citizen of the United States, and a resident of New York city, in the county and State of New York, have invented certain new and useful Improvements in Electrical Type-VVriters or Printingfllachines, of which the following is a specification.

My invention relates to certain improve ments in the construction and organization of apparatus designed to be operated either for printing words and sentences, character by character, for telegraphically transmitting communications, or for recording communications so transmitted.

The general object of the invention is to provide efficient'apparat-us for subserving the requirements of the ordinary type-writer employed for business purposes and a printingtelegraph instrument for intercom munication.

The invention consists in organizing the fol lowing systems of apparatus, and in combining in one complete instrument all or any of the same, as required for particular purposes. A longitudinally-movable carriage, upon which is placed the paper which is to receive the impressions, is placed at the back of the instrument. In front of the same is placed an annular series of type or a type-cylinder, which are successively brought, by the rotations of a supporting-shaft, into position to have their characters imprinted upon the paper. This shaft, and thus the type-cylinder, is revolved by means of an electromagnetic motor before the paper thus presented.

For the purpose of determining the position in which the type-cylinder shall be arrested to permit the impression of a particular type on the receiving-instrument, an escapement device is applied to the motor, which device is actuated by the successive impulses traversing the circuit to permit the revolution of the shaft, but which acts, under theinfluence ofa prolonged electric current, to arrest the movement of the same. Such a prolonged current is transmitted through the coils of the escapement device, through the instrumeutality of a series of keys corresponding with the characters borne by the type, and arranged, when depressed, to complete the necessary circuitconnections for establishing such a current at the moment the corresponding type is pre- (No model.

sented to the paper. The same impulse acts to complete the connections of an electric circuit, in which is included a printing-magnet, which magnet actuates tne one or the other of two type-levers respectively corresponding with two series of type. thereby causing one or the other of two type simultaneously presented to the paper to be imprinted upon the same. After an impression has been made by any of the type, the paper-carriage is caused to advance through the space occupied by a single impression, through the agency of a pawl operated by the lover of the printing-magnet, and acting upon a pinion appliedto a rackbar carried upon the papercarriage. Devices for returning the carriage to the proper position for commencing a line, and for moving the paper vertically with reference to the type at any point in the excursion of the carriage, are also provided, and also means for automatically transmitting to asimilar instrument electric impulses of the proper frequency and duration for actuating thatinstrument correlatively with the transmitting-instrument.

The invention also comprises certain details of construction and organization of apparatus, hereinafter fully set forth.

In the accompanying drawings, whichillustrate my invention, Figure 1 is a front elevation of an instrument embodying the features of my invention, and Fig. 2 is avertical crosssection of the same. Fig. 3 is a plan view of the instrument. Fig. 4 is a plan view taken on'a lower plane than Fig. 3, showing particularly the construction ofthe motor. Figs.

5, 6, and 7 illustrate certain details of construction, and Fig. 8 is a theoretical diagram showing the organization of the electric circuits.

Referring to the drawings, A represents a suitable base, and A a frame ior supporting the various parts of the instrument. At the upper and rear portion of the instrument is placed a paper-carrier, B, laterally movable upon two supporting'rockers or wheel-seg ments, B and B, the hubs b and Z) of which respectively surround two transverse axes, b and if, at the respective extremities of the carriage. The peripheries b and b of the wheel segments B and B" are preferably in the form of segments of circles, and provided with teeth which mesh into corresponding teeth formed inthe surface of suitable horizontal-grooved tracks I), placed upon the base A of the instrument. These wheels permit the carriage to be moved laterally in either direction and in a constant horizontal plane.

The carriage B is constructed as follows: A paper-carrying roller, 0, is supported at its respective extremities in suitable bearings, c and 0 formed in two arms, 0 and G, which arms form aportion of the frame of the carriage. A second roll, 0 is likewise supported at either extremity in bearings formed in the arms 0 and C, and serves to feed the paper to the type. A friction-roller, G, is supported above the roller 0 upon arms 0 pivoted to the arms 0 and O and is pressed by means of suitable springs, 0, against the feeding-roll C. A paper-guide, C is provided for bringing the paper into the proper position for receiving the impressions from the type. This guide consists of a fri ction-roller,c and two parallel rods, 0 and c. The friction-roller 0 extends parallel with the rolls 0 and O and is supported at each end in arms 0 and 0 respectively secured to the arms 0 and G. The rod 0 is supported by the arms 0 and c and is placed in front of the roller 0 and at a sufficient distance therefrom to allow the paper to pass freely between the same. sponds to the rod 0 and is similarly supported in arms a" and 0 but at a sufficient distance above the same to permit the type to be pressed against the paper between the two. An arm, D, carrying at its extremity a platen, (1, extends from the central and rear portion of frame A toward the type. This platen is preferably adj ustably affixed to the arm D, and extends above the roller 0 and into proximity to the paper which is passing through the guide 0 Extending vertically from the lower portion of the frame A of the instrumentis ashaft, E, carrying at its upper extremity a cylindrical support, F, in which are placed two annular series of movable type, F and F. The shaft E has near its lower extremity a bearing, 0, formed in a transverse portion, a, of the frame A, and near itscenter a second bearing in a plate, 11 of the frame A.

The type-cylinder F consists of a horizontal disk, F adjustably affixed to the shaft E by means ofa set-screw,f, extending through a collar,f, formed upon its upper side and sur rounding the shaft, which disk is secured to a parallel annular plate, 1*, by means of two concentric rings, f and f fitting between an nular lugs f formed upon the confronting surfaces of the'platcs F and F.

For convenience in construction the two ringsf andf are preferably constructed in one piece with a horizontal annular plate, f", which is secured to the disk F by screws or pinsf". f andf by screws or pinsfhextending through the lugs f, and similar screws may be applied The rod 0 corre- The plate F is fastened to the rings to the upper peripheries of the rings, as shown at f. Two ranges of apertures, F and F are formed in each of the concentric rings f and f, through which extend the shanksf of the two series of type F and E respectively. These apertures are preferably formed by cutting radial slots through the platef and into the rings f and f somewhat deeper than the depth of the type shanks. Similar openings or slots are cut from the lower edges of the rings upward for the lower series of type. There is left thus a skeleton frame formedabout the continuous portion of the two rings not cut away. \Vhen the disk F and annular plate I? are a lied to the same, the openings at the top and bottom of the slots will be closed thereby. The number of aperturesin thetwo rings are equal, and the apertures in the one ring are situated in the same radial lines as the corresponding apertures in the other. The shape of the apertures is preferably rectangular, and the size and form of each type-shank f is such that it may be readily moved backward and forward therein, but may not be turned axially. Surrounding the portion of each of the type-shanks between the two concentric ringsf and f* is a coil-spring,f the outer coil of which, f presses against the outer ring, f", while its inner end is secured to a pin in the type-shank, as shown at f. The function of this spring isto normally hold the type toward the center of the type-cylinder with the inner extremity of the shank projecting slightly beyond the inner ring, ft The pinf also serves to prevent the type from being pressed too far toward the center of the Cylinder.

The faces of the type in the series F and F are configured to represent the various characters which it may be desired to imprint upon the paper. The typein the lower series, for instance, may be employed for represent ing the numerals and other characters, while those in the upper series represent letters of the alphabet.

The next feature of the invention to be described is thatinvolving the device employed for rotating the type-cylinder. This device consists of an electro-magnetic motor, G,adapted to rotate a shaft, H, which is parallel with and geared to the type shaft E. The motor G comprises four electro-magnets, G, (RG and G, through each of which, in recurring succession, an electric current is transmitted by the action of an automatic circuit-closing device, I. The circuit-controlling device I consists of four contact-springs, i, i", 13 and i", carried upon the supporting-plate f. The springs i are. electrically, connected with each other and with a conductor, 27, which in turn is electrically connected with one pole of a battery, in a manner hereinafter described. The springs i are preferably arranged in pairs, one pair, 1 and i extending directly over each other upon one side of the shaft H, and the other pair, 3 and that opposite points upon the other side ofthe same shaft. The portion of the shaft H extending between the springs 6 car- Iies two vertical cams, i and 2", at right angles to each other, and arranged toimpinge against the springs and bend them outward in recurring succession. The four contact-springs i, i i", and i are thus caused by the motion of the shaft to respectively make successive contacts with corresponding adjustable contactpointsjflj", j", andj, which are insulated from the supporting-platez' thereby continuing the electric circuit from the conductor 27 successively through the four conductors 10, l1, l2, and 18, respectively, uniting the contactpoints j with the electromagnets G, G", G, and G. The opposite terminals of the coils of these magnets are all united with a conductor, 14. The eleetro-niagnets G, through which the electric circuits are thus closed, are respectively provided with armaturesg, g", g, and g. These armatures are arranged in pairs, the armatures g and g being mounted upon opposite extremities of an armature-lever, g, which is secured at its center to an axis or trunnion, g pivoted in the frame A. The armatures y and g are in like manner carried upon a lever, 9, supported upon an axis, 9". Two arms or levers, g" and g, are respectively rigidly attached to the axes and g, and extend toward and past each other at an angle preferably of about ninety degrees. The two arms are, however, in different planes, and thus independent of each other. Two links, gand 1?", respectively, unite the extremities of the arms and g with a crank, 11-, constituting a part of the shalt H, in such a manner that the backward and forward movements or oscillations of the arms and will communicate a rotation to the shaft H The operation of the. motor thus organized is, briefly, as follows: A circuit being closed through the electro-magnet G'Zthe armatureg is drawn toward the magnet and the arm 9 impelled inthe direction indicated by the arrow a thereby revolving the shaft H through one-quartt r of a complete revolution. The circuit-controller I thereupon acts to close the circuit through the electromagnet G. The armature 9 will then be attracted,and the arm g will be actuated in the direction of hearrow and the shaft will be turned another quarter of a revolution in the same direction. The circuit being next closed through the elec tro-magnets G and G in succession, the arms 5 and 9 will be actuated in the direction opposite to that indicated by the arrows and as, and the shaft H will thereby be turned the remaining halfof a completerevolution. This operation will be repeated so long as the circuit through the conductor 27 remains completed. The motion thus imparted to the shaft His communicated to the type-shaft Ethrough a pinion and gear-wheel, H, the relativesizcs of which may be varied as found desirable for the purpose of obtaining the required rapidity of rotation on the part of the type-cylinder. It may here be observed that in certain instances it may be found desirable to substiwhich, it may be observed, is

in an instrument designed to be used as a.

tute for the electromagnetic motora mechanical motor of any suitable and well-known construction for driving the shaft E.

The apparatus for controlling the movements of the type-cylinder and determining the position in which it shall be arrested con1- prisesa pole-changing device, N, for actuating an escapement mechanism applied to the shaft H, and a series of keys, K, for arresting the movement of the motor when the type-cylinder has reached a predetermined position-that is, the position in which the type corresponding with the particular key employed is in position to be actuated. The pole-changer N, employed only transmitter, consists of two pairs of insulated contact-springs, n and n and n and nflplaeed upon opposite sides of the lower the shaft H. These pairs of springs are respectively carried upon two standards, n and n, extending from a base, a, which base is secured to the frame A, but insulated therefrom. Each contact-spring n is provided with an adjustable contact-point, as shown at- 0", 0 and 0. These contact-points are carried in two insulated standards, 0 and 0, similar to the standards a and n. One pairof contactspringspi and a, are electrically connected by a conductor, 7, through the coils of an electromagnet, M, and, in a manner hereinafter de scribed, with the eonductorS. The remaining pair ofspri ngs, n and n", are connected by a conductor. 15, with the earth or with the returnwire. The contactsprings n are normal] yheld, by their own resilience, away from their respective contactpoi nts 0, but they are periodically placed in contact therewith during the revolutions of the shalt H by means of two double-faced cams, h and 71, carried upon the portion of the shaft H extending between the springs. The cams h and it prcferabl y consist of lateral enlargements of insulating material formed upon a sleeve with their axial planes crossing each other at right angles, and the sleeveis secured in position upon the shaftH by means of a set-screw. When the shaft H is revolved by the action of the motor G, th'e lug It acts first to press the springs nand or" against their respective contact-points 0 and 0 and-in its next quarter-revolution the lug h acts to compress the springs a and it" against the con tacts 0 and 0, respectively. In this manner the circuit of the battery 0 will be closed first from its positive pole through the conductor 1, contactpoint 0*, spring a, conductors 7, S, and 14, in a manner to be described, and from the negative pole through the conductor 2, and thence through the contact-spring n, contactstop 0, and conductor with the earth. The continued revolution of the shaft H will cause the cam h to be carried away from the springs 92 and 11 while the cam h acts to place the springs n and if in contact with the stops 0 and 0*, respectively, thereby closing the circuit from the positive pole of the battery 0 through 1, stop 0 and spring 72 and the conductor extremity of 1 upon a sleeve, m",

the shaft H, but which is united therewith the conductor 15 with the earth. The negative pole of the battery 0 is simultaneously connected with the stop 0, spring a, and conductor 7, and thence through the conductors 8 and let to line. positive and negative impulses are transmit- ,ted through the coils of the electro-magnet M.

The successive changes in magnetization thus established act upon a polarized armature, m supported upon a suitable vertical axis, m impelling it toward its opposite poles m and m alternately.

Mounted upon the axis in of the polarized armature m is an arm, m carrying an anchor-escapement, on, whose detents engage the teeth of a wheel, m mounted upon the shaftH. The vibrations, therefore, of the armature m occasioned by the rotation of the shaft H, permit the type-cylinder to be revolved in a well-known manner. It will become evident thus, that as there are but four reversals of current occasioned by the polechanger N during each complete revolution of the shaft H, there should be but four teeth upon the periphery of the wheel m If, however, for any reason it is desired to vary the number of such reversals relative to the revolution of the shaft H, the number of escapement -teeth should be varied correlatively. The wheel m is preferably mounted which loosely surrounds by means of a coil-spring, m one end of which is fixed to the sleeve and the other to the shaft. A pin, m extending through a slot, m, formed in the sleeve, permits aslight revolution on the part of the wheel at independently of the shaft H. This movement, however, is preferably limited to the fraction of a revolution of the wheel m required to revolve the type-cylinder through an are equal to about one-quarter or one-half of the arc subtended by a single type. This construction is adopted for the purpose of preventing a too-sudden arrest of the motion of the mechanism by the action of the escapement when the printing is to be effected.

For the purpose of actuating the printing mechanism it is necessary, first, to arrest the motion of the shaft H at the proper point for bringing the required type in position to make its impression upon the paper, and, second, to transfer the circuit through an electro-magnet Whose function itis to effect the impression. The former of these ends is attained by means of an electro-magnet, M", situated in a local circuit, which circuit includes the keys K, segmental ring L, and interrupter X, hereinafter described. This electro-magnet is vitalized by closing any one of the keys in a manner hereinafter explained. The function of the electro-magnet M is to arrest the movement of the shaft H, and thus that of the wheel at when it is vitalized. The electro-magnet M is for this purpose provided I with an armature, h, carried upon a trunnion,

h. This armature normally rests against a back contact-stop, h".

In this manner alternate.

The armature is electrically connected by a conductor, 26, with one pole of the local battery 0 while the stop If is connected by a conductor, 27, through the circuit-controller I, thence through the electro-magnets G to the remaining pole of the battery by a conductor, 28. Extending from the trunnion h is an arm, h, carrying a pawl or detent, h, for engaging the teeth of a wheel,

7L5, rigidly carried upon the shaft H. The armature h is normally held by means of an adjustable spring, h, away from the magnet M, and the detent h is at the same time maintained out of the path of the wheel h. The armature h", by moving toward the poles of the magnet, will place the detent h in the path of the teeth of the wheel If. The shaft H will thus be arrested in the position which it occupied at the moment of the completion of the local circuit therethrough. The type cylinder, however, is not immediately arrested by the stopping of the shaft H, by reason of the yielding connection through the spring in". The type-cylinder is thus made toadvance after the arrest of the shaft H through afraction of the space occupied by a single type, and it is arrested in that position by means of the escapement-arm m, which arm" is caused to en gage the wheel m and rigidly retain the same in the required position by reason of the polarized armature m being held in a given position by a prolonged current which is transmitted through its electro-magnet when the shaft H is at rest. This same impulse acts upon a neutral armature applied to the same electro-magnetM to operate a switch for placing the printing-magnet in circuit, in a manner to be hereinafter described.

The device for completing the circuit of a section, 0, of the local battery 0 through the electro-magnet M comprises a bank of circuit-closing keys, K. The individual keys of the series K respectively correspond with the characters represented by the type carried in the cylinder F, already described. Each key consists, of a pivoted circuit-closing lever, K, and anvil K". The levers K are electrically connected with a conductor, 29, leading to one pole of the battery-section O and the anvils K? are respectively connected with the individual segments Z Z l, &c., of a segmental contact-ring, L, by means of conductors k k k, &c. The segments Z Z 1 &c., thus connected are arranged in the same succession as the typef bearing the corresponding characters.

Secured to thetype-shaft E is a contactbrush, L, which rests upon the surface of the ring L, and is caused by the rotation of the shaft E to make successive contact with the segments 1. This contact-brush is in electrical connection, through a second contactbrush, L pressing against the periphery of a contact-ring, L, upon the shaft E, with the conductor 25,1eading to the electro-magnet M The circuit is continued through aconductor, 30, and the interrupter X of the remaining insulated from the frame A.

pole'of the battery-section It, therefore, any given key be depressed, a portion, 0 of the battery 0 will be shunted through the coils of the electro-magnet immediately upon the contact of the brush L with the particular segment Z connected with the anvil of that key independently of the motor G. The shaft H and pole-changing device N being thus arrested, a prolonged current of either polarity will be sent from the battery 0 to the main line through the electro-magnet M. The polarized armature m will thereupon be held toward one pole or the other of the magnet, and the type-shaft E in the receiving-instruments arrested with the particular type corresponding with the key depressed confronting the paper upon which the impression is to be made. The same impulse which thus arrests the. type-cylinder acts upon a neutral armature. 1 supported in proximity to the poles of the electroniagnet M upon a horizontal pivoted lever, 19. This armature is normally held away from the poles of the magnet by a suitable retractilc spring, p one end of which is applied to an arm,p secured to the arborp of the leverp. The remaining end of this spring is fixed to a suitable tension-adjusting screw, p carried upon a braclp et, Q. The rapid succession of positive and negative impulses transmitted through the electromagnet M is not of sufficient duration to draw the armature P int-o proximity to its poles against the tension of the springp", and it therefore normally rests against an adjustable back contactstop, When, however, a prolonged impulse is caused to traverse the coils of this magnet, as hereinbefore described, the armature P will respond to the cousequent magnetization and be drawn forward until the arm p rests against an adjustable limitingstop, 1), carried in asuitable support, 1)". The arm p extends between twoinsulated pivoted switch-arms, q'and carried upon the bracket Q, which is secured to and preferably The arms q and are respectively provided with adjustable contact-points q and qflwhich are designed to make electrical connections with an interposed stationary arm, Q5, toward which they are impelled by a suitable spring, q", acting to draw the two arms g and q toward each other. When the armature P is in its backward po sition, the arm p acts, by pressing against the extremity of the switch-arm q, to retain the contact-point Q3 away from the intermediate arm, q. The switch-arm (f, however, is at the same time drawn toward the arm (1 and its cont-act point q is in electrical connection therewith. \Vheu the armature P is attracted into its forward position, theswitcharm Q2 will be forced away from the arm (1 and the contact-point will be placed in electrical connection therewith. The conductor 7,-leading from the electro-magnet M, is in electrical connection with the arm (1 The switcharm q is connected through the conductor 8, which in the receiving-instrument is connected with the conductor 14, leading from the motor G. The switch-arm q is connected, through the conductors 17, 18, and 19, and the coils of a priuting-magnet, P", with the conductor ll. When, therefore, the motor has been arrested by action of the detent h and the escapement-arm m and a prolonged impulse is transmitted through the coils of the electro-magnet M, the motor itself will cease to exert a propelling force on account of the interruption of the circuit therethrough by the action of the armature I1, and the circuit through the printing-magnet P will be completed, and this last named magnet will be vitalized.

The printing-magnet P is provided with an armature, 19*, carried upon a lever, p, which lever is so pported upon an arbor, p having its hearings in a suitable bracket, 1), secured to the frame A. Secured to the arbor p is an arm, 19, forming a right angle with the armature-lever p, and extending behind a perpendicular T-shapcd lever, r. The lever r is pivoted to a'bracket, r, secured to the frame A, and is provided with an extension, 1*, the function of which will be hereinafter pointed out. The arm 19 extends through a mortise, r, formed within the lever r. and serves,when the electro-magnet P is vitalized, to communicate a forward motion to that lever.

Upon the respective arms 1" and r of the T-shaped lever r are pivoted two pawls,r and 9*, which pawls are respectively constructed to engage the teeth of two ratchet-wheels, r and r. The pawls r and r are respectively pressed against the peripheries of these ratchet-wheels by coiled springs r, surrounding their respective supports and extending beneath the pawls. The ratchet-wheels r" and r are respectively and independently mounted upon sleeves r and r, surrounding a common axis, T, which axis is carried upon suitable supports, 1' and r, secured to the frame A.

Parallel with the axis r and similarly supported in two brackets, s and s", is an axis, 5-", surrounding which are two sleeves, s and 5 carrying levers s and 8 respectively. The extremities of the levers s and a extend above the ratchet-wheels r and 9, respectively, and are pressed against the same by coiled springs a and s, surrounding the axis 3, and having their respective ends attached to the axis-support and the corresponding sleeve in a. wellknown manner. The teeth of the ratchetwheels 9*" and r are preferably constructed to present beveled or tangential faces to the cor responding levers, s and 8, while the other faces are perpendicular or radial as regards the centers of the wheels. The pawls r and r engage these teeth upon their perpendicular faces. \Vhen the arm p is thrown forward by the action of the armature-lever p", one or the other of the ratchet-wheels r or 1' will be rotated, and the corresponding lever, s" or 5 will be first carried upward by the tooth upon which it rests, and then allowed to fall sudfronts the paper when the printing is to be denly against the succeeding tooth. The device for determining which of the wheels 1* or r shall be thus actuated will be hereinafter described. The sleeve 8, which carries the lever s, also carries an arm, R, for actuating the particular type of the series F which coneffected, and the sleeve 8 likewise carries an arm, R which is in like manner employed for actuating the type in the series F. The arm R carries at its upper extremity a projection or hammer, R which is normally held away from the typef by the action of the corresponding coiled spring, 8 When, however, the lever s is elevated by the wheel 1", this hammer will be thrown against the projecting end of the shank of the particular type which is presented to the paper, and will cause it to beforcedforwardagaiustthe paper. Asiniilar hammer, R is in like manner carried upon the extremity of the arm R", and is caused to actuate the particular type in the series F in the path ofthe same when the wheel r is revolved.

The device for determining which ratchetwheel, o or 1, shall be actuated, and eonsequently whether an impression shall be made by a type in the series F or F consists of a movable wedge-shaped block, t, designed to be thrown between the teeth of one or the other of the two ratchet-wheels and the corresponding pawl, and to thereby prevent that pawl from engaging the same. The block t is carried upon an arm, t", extending from a rockshaft, t between the two pawls r and r. The rockshaft t extends horizontally beneath the levers s and s and is supported in suitable bearings formed in standards i and The remote extremity of this shaft carries a forked arm, 1 The levers s and s are respectively provided with horizontal extensions 25 and i a function ofwhieh is to force one or the other oftwo vertical rods or pins, t or it, against the prongs t and 1, respectively, of the forked arm i thereby turning the rock-shaft toward the right hand or toward the left, and causing the block t to stand between the teeth of one or the other of the wheels 1- or r. The rods i and t are carried upon a disk,T,adjustably affixed to the shaft E. The rods t and t extend through slotted sleeves and it, respectively, and are prevented from turning axially by means of suitable pins,t ,extending through the rods and projecting through the slots formed in the sleeves. They are, however, capable of a vertical movement,which is limited by the length of the slots through which the pins project. Suitable coil-springs, t, surrounding the upper portions of therods normally sustain the same in their upward position, in a manner well understood. The lower extremities of. the rods t and t are provided wit-h arms t and t respectively,which,

when either rod is in the proper position to I be engaged by its corresponding arm, i or I will engage the corresponding prong, t or t",

of the forked lever t. It is evident-that as the disk T is fixed to the shaft E, and therefore revolves with the cylinder F, at the moment either rod i or t is in position to be engaged by the corresponding extension, i or 25 thetype-cylinder will be in a predetermined position. In order, therefore, that the block t may be actuated without printing, I prefer to construct the type-cylinder with blank spaces which will confrontthe paper at the instant the rod t or t is in position to be actuated.

The operation of this device is as follows: Considering the block t to be placed between consecutive teeth in the wheel 1, as indicated in the drawings, the pawl T will slide over the surface of the same when the lever 19 is actuated, while the pawl 1- will cause the Wheel 1- to be driven forwardand a type in the series F to be impressed. It, now, it is desired to print from the series F, the shaft E ispermitted to revolve until the rod i is beneath the arm '6", and then the printingmagnet is automatically vitalized in the same manner as if a character were to be printed, and the wheel 9" is again impelled forward by its pawl r". The extension t thereupon forces the extension t of the rod i against the prong t of the forked arm t thereby causing the shaft i to be turned toward the left hand, and the block 25 to be transferred from its former position to a corresponding position relative to the wheel 1'' between'the teeth of that wheel which succeeds the'tooth engaged by the pawl W. The subsequent movements of the pawlr do not effect the moyement of thewheel r, but the wheel 1" will be actuated by'the pawl r". The chuck it may be transferred to its former position by means of the arm 15 and pint in a manner precisely similar to that just described. WVhen a character has been imprinted by a type from either series F or Fflit is necessary that the carriage B should be so actuated that the paper will be in position for receivingthe succeeding character. This end is accomplished through the agency of ahook-pawl, u, pivoted upon the extremity of the armature-leverp, and constructed to engage the successive teeth of a spur-wheel, u". The wheel a is carried upon an arbor, a mounted in the bearings u and a upon the frame A, and extending beneath the rack-bar C ,before referred to. A pinion, a mounted upon the arbor a engages the teeth of this bar which are so proportioned that each time the pawl a actuates the wheel a the carriage B willbe advanced the required distance. A suitable dog, a, normally engages the teeth of the wheel a? and prevents a retrograde movement ofthe same. This dog, as also the hooked pawl a, is provided with rear extensions, as shown at a and a, .which extensions serve as counterpoises for causing them to engage the teeth of the wheel. For thepurpose of releasingithe wheel from the pawl and dog when it is desired to return the carriage to'the position for commencing a line, an electro-maguet, V, is mounted upon the frame A and provided with an armature, 'v', and annature-lever v pivoted at c and provided with a right-angled extension, 21. This extension passes beneath the rear extensions, a and a, of the pawl and dog, and, when the armature is drawn toward its electroanagnet against the force ot'its retractile spring a acts to raise the extensions, thereby releasing the wheel a". The carriage is then free to move back to its starting posit-ion in response to the force exerted by a weight, u, attached thereto by a cord, i2, passing over a pulley, v

The device adopted for vitalizing the electromagnet V comprises a circuit-breakenv through which the connections of the con ductors l7 and 18 are normally completed, but which may be actuated in a manner similar to that adopted for operating the block 1, to sever those connections, and to thereby cause the current to traverse the coils of the electro magnet V. To this end a lever, if, is pivoted to an insulated portion, e, of the frame A, and extends into proximity to the circle described by a vertically-1novable rod, c carried upon the disk T, and similar in general construction to the rods t and 1. Upon the upper extremity of the rod 2 is carried a projection, e, which once in each revolution of the disk is broughtabove the extremity of the lever '0 and at the same time the rod itself is in position to be forced downward by the action of the lever .3. At the remote extremity of the arm 1's carried a contact-point, n, which normally rests upon an insulated contact-stop, o. Upon the keyboard is provided a key for arresting the type shaft E at the proper point to bring the projection '0 in position to engage the arm n". From the arm a a conductor, 20,extends to one terminal of the coil of the electro-magnet V, while the remaining terminal of the same coil is connected by a conductor, 2i, with the contact stop n. p The connections of the conductors 17 and 18, which are respectively united with the arm n and contactpoint a, will thus be nor in all y completed through the circu it-hreakerv and practically no current will traverse the electro-inaguet V. If, however, the lever'u be actuated through the instrumcutality of the lever .s and rod c in the manner indicated, this circuit will be interrupted and the entire current be forced to traverse the coils oftlie electromagnetV. Thearmaturec will thereupon be actuated and the wheel if released in the manner already described. The circuitthrough the electro-niagnet M is interrupted either by the opening of the key by means of which it was first caused to be vitalized, or through the automatic action of the interrupting device X. The armature h, by falling away,both releases the clutch-wheel it and again completes the circuit of the motor. The shaft H is thus permitted to advance independently of the clutchwvheel m", by reason of the spring m a sufficient distance to act through its cams to reverse the connections of the mainline battery. This change in the polarity causes the armature m of the elcctro-magnet M to be actuated, and thusthe wheel m will be released and the operation may be repeated.

For the purpose of avoiding the necessity of operating the key and electro-magnct V for returning the carriage to its starting-po nt when the carriage has reached the limit of its excursion toward the left hand, a mechanical device arranged to be automatically operated to release the pawl and dog is provided. This device consists of a cam, 3 carried upon a shaft, 3 and extending beneath the rear extensions, a and a". The shaft y is supported from the frame A in a suitable standard, 7 and normally rests in such aposition that the cam is out of the path of the extensions. A pin, y, at one extremity of this shaft pro ects into the path ot'astop, fixed upon the frame of the carriage O in such a position as to be brought into contact therewith when the car riage has reached the limit of its movement toward the left hand. The effect of the stop 2 coming into contact with the pin is to turn the shaft y in its bearings until the eccentricity of the cam has raised the extensions u and a" sufficiently to release the wheel 102 from the correspondingpawl and dog. The carriage will thereupon automatically return to its starting-point. A second stop, y 1s carried upon the carriage C near its left-hand extremity, which stop engages the pin y upon the side opposite from the stop whenthe carriage has returned to the right-hand limit of its excursion, causing the shaft y to be turned in the corresponding direction and the extensions thereby released from the cam y. The pawl and dog thereupon re-engage the wheel 16.

For the purpose of revolving the drum 0 of the carriage to move the paper upward when it-is desired to print upon a new l1ne,an electro-magnetfti is placed near the starting point of the carriage. This electro-magnet is provided with an armature, supported upon one arm of an angled lever, to. The lever to is pivoted to the frame A at a po1nt, w, and carries at its remote extremity a springpawl, 10', which engages the teeth of a ratchetwheel, to, in such a manner that each downward movement of the armature w 111 response to the magnetization of the electromagnet W will cause the wheel to be advanced one tooth. The wheel 20 is loosely mounted upon a rectangular shaft, 20, constituting an extension of the axis of the drum 0*. The shaft to" is thus permitted to slide freely through the wheel 10 hut'uiay not be turned without moving the wheel. The wheel itself is retained in its proper lateral position by means of an arm, 'w and a bracket, 20

When it is desired to actuate the drum in the'manner above described, the electromagnet 7 is vitalized by means of a current caused to traverse its coils through the instrumentality of a device, W similar to that employed for vitalizing the electro-magnet V. This device consists of a lever, 10*, carried-upon the support if, and provided with a contact-point, .0, normally resting in contact with a circuit-closing stop, 10. The lever to extends beneath the disk T and into proximity to a rod, 20 carried upon that disk. The rod w is similar in construction to the rod 12 and carries at its lower extremity a projection, 20, which once in its revolution is brought above the extremity of the lever 20.

-A key is provided for arresting the motion of the shaft E in the proper posit-ion for causing the lever s to strike the rod 10 and to thereby actuate the circuit-breaker in a manner precisely similar to that already described with reference to the circuit-breaker V for releasing the carriage. The conductor 18, leading from the circuitbreaker V", is connected with the arm wfland the contact-pointw is connected with the conductor 19. The arm 10 and contactpoint w are, moreover, respectively connected, through conductors 22 and 23, with the respective terminals of the coil of the electro-magnet W. The same current, therefore, which actuates the printing device normally traverses the circuit-breaker W, and practically no current will traverse the coils of the electro-magnet W. \Vhen, however, the circuit-breakerV is actuated in the manner indicated, the armature will be actuated and the drum revolved, as already described.

For the purpose of automatically and me chanically operating the drum revolving mechanism when the carriage is returned to its starting-point, a beveled arm, 10", is secured to the end of the carriage adjacent to the electro-magnet W, and so placed relative to the armature w of the same that it will, whenthe carriage is returned nearly to its starting-point, pass above the armature and gradually press it toward the poles of the magnet. The .wheel 10 and shaftw will thereupon be actuated in the same manner as if the electro-magnet had been vitalized. In rapid transmission it is desirable that the operation of the motor should be continued immediately after the impression of any type has been effected. For this purpose the device X is employed for interrupting the current which is transmitted through the electromagnet M when any one of the keys K has been actuated, and immediately after efi'ecting the impression upon the paper, or immediately after the actuation of any of the subsidiary devices through the agency of the levers s or s. The conductor 30, leading from the electro-magnet M is connected with an insulated contactpoint, w, carried upon the support r of the wheels 1" and r. Above this contact-point extends a circuit-closing arm, m carrying an adjustable contact-point, m

and pivoted to the support 1" at x. Thepoint a. is electrically connected with the batterysection 0 and it normally rests upon the point or. Secured to the circuit-closing arm x is an arm, ai extending into the paths of the teeth of both the ratchet-wheels 'r" and T The adjustments of the various parts are such that when either of the ratchet-wheels r or r is impelled by its pawl, and a type of the corresponding series, F or F, has been struck upon the paper, one of the teeth of the corresponding ratchet-wheel, r or W, will, by passing beneath the arm wicause the contact-point r to be separated from the point x. The circuit through the electro-magnet M will thereby be interrupted and the armature h -will be released. 'The circuit through the motor G will thereby be reestablished, and the shaft H will again be actuated. The prolonged current through the electro-magnet M will also be interrupted, and the arm 19 will return to its normal position, thereby substituting for the circuit through the printing-magnet the normal circuitthrough the conductor 9. Should the same key which occasioned the operation of the printing mechanism remain depressed,the operation will be repeated when the shaft E has completed a revolution, and v the brush L again makes contact with the corresponding segment, Z.

In describing the invention thus far the instrument has been viewed as a recording and transmitting instrument. As it is designed, however, to employ the same instrument as a receiver as well as a transmitter, the necessity of providing a device for correcting any inaccuracy in the posit-ions of the series of type becomes apparent. The device which I proposeto employ for this purpose consists of an arm or stop, z, fixed to the shaft E of the type-support, into the path of which a rod, z", is automatically thrust each time the carriage is returned to the right-hand limit of its excursion for commencing a line. The rod z" extends through a support, 2 in which it is longitudinally movable, and is normally held out of the path of the arm 2 by means of a coil-spring. 2*, surrounding the rod and cont pressed between the support 2 and a pin, z. Upon the carriageB is carried a pivoted arm, 2, the extremity of which is beveled both upon its face and lower edge, and is adjusted to pass behind the rod 2 and to press it forward into the path of the arm 2 whenthe carriage is at the extreme right-hand limit of its excursion. If the type-shaft be allowed to revolve when the rod .2" is thus pressed forward, it will be arrested by the contact of thearm zthere with. By arranging the arms 2 in all the instrumentsin the same position relativeto their type-wheels, they will all be arrested in the same position each time the carriages are returned to the starting-point. For the purpose of moving the beveled arm 2 out of the path of the arresting-rod Z and allowing thelatter to be returned to its normal position when it purpose of conducting material.

carriage and the platen d are in this construe has accomplished itspnrpose of arresting the typeshaft, abell-crank, z, is provided for elevating the extremity of the rod .2 through the agency of the printing -magnet. The bellcrank z is supported in a suitable bracket, z,

from the frame A, and one arm extends be neath the beveled extremity of the arm 2. To the remaining arm of the bell-crank z is pivoted one end of a link, a". In the opposite extremity of the link 2* is a slot, a, through which projects apin, z, carried upon an extension, 1", of the lever 1', hereinbefore described. The pin 2 normally plays in the slot 2" without moving the link. When the carriage is at the right-hand limit of its excursion, the

lower beveled edge of the arm z acts to depress the arm 2* of the bell-crank, and thus same manner as if a character were to be printed. There being no type confronting the paper, however, no impression will be made, but the carriage will be advanced one space.

When the instrument is to be employed as a receiver only, it is apparent that certain portions of the mechanism employed in the transmitter may be omitted. Thus it is evident that in a receiver the keys K and the segmental ring L would be omitted, as also the pole-changing device N and electro-mag net M The incoming currents would then be conducted directly to the polarized electromagnet M through a switch, X, and through a switch, X and conductor 31 (shown in dotted lines) to the motor G, as illustrated in Fig. 8. Then the instrument is employed as a receiver, its motor is to be actuated by currents traversing the switch X, conductors 7 and 8, switch X and conductor 31. A suitable switch, X is employed for interrupting the circuit of the local battery when used as a receiver.

Any suitable form of inkingroller may be employed in connection with the type F for rendering the impressions upon the paper visible. I prefer, however, when it is practicable, to employ in lieu of the inking device chemically-prepared paper, which may be acted upon by electric currents transmitted therethrough from a battery, Z (shown in dotted lines in Fig. 2,) when any type is placed in contact therewith. The positive and negative poles of this battery are respect ively in electrical connection with the type F and the platen d. The platen is for this The papertion to be insulated from the remaining portions of the instrument. When any type is pressed against the paper, an electro-chemical action will be occasioned through the portion of the surface of the paper which is touched by the conducting-face of the type, thus recordingthe form of the typecharacter.

I claim as my invention 1. The combination, substantially as hereinbefore set forth, of an annular series of independently-movable type, a shaft upon which said series is supported, means for revolving and for arresting said shaft, a paper-carriage and means for moving said carriage laterally before said series of type, means for causing the particular type which confronts said papercarriage to be moved toward the same and to effect an impression upon a sheet of paper upon said carriage, means for withdrawing the same after it has been thus actuated, means for advancing said carriage step by step after effecting such impression, means for moving said carriage in the opposite direction from any point in its excursion, and means for feeding'the paper upward a linespace at any time, and for arresting the series of type in a predetermined position relative to the paper-carriage when said carriage has .returned to one limit of its excursion.

2. The combination, substantially as hereiubefore set forth, of an annular series of independently-movable type, means, substantially such as described, for causing said type to be successively presented to a paper sheet, means,

substantially such as described, for arresting said series of type with any desired type confronting said paper sheet, a lever for causing the particular type confronting said paper sheet to beimprinted thereon, atoothed wheel for actuating said lever, an electro-magnet,its armature and armature-lever for actuating said toothed wheel, and means, substantially such as described, for vitalizing said electro magnet when said type have been arrested.

3. The combination, substantially as here inbefore set forth,0f two ann ularseries of inde pendently-movable type, means, substantially IIO such as described, for causing the type in each of said series to be successively presented to a paper sheet, two levers-one for actuating the type in each of said series-two toothed wheels respectively applied to said levers, veach arranged to cause the character represented by the particular type confronting the paper to be imprinted upon the same, and means, substantially such as described, for actuating said wheels.

4. The combination, substantially as hereinbefore set forth, of two annular series of independently-movable type,means,substantially such as described, for revolving and for arresting said series, two levers-one for actuating the type in each of said seriestwo toothed wheels respectively applied to said levers, each arranged so as to cause the type confronting the paper to be imprinted thereon,

IIS

means, substantially such as described, for actuating said wheels,and means, substantially such as described, for preventing the movementof either of said wheels when the other is being actuated.

5. The combination, substantially as hereinbefore set forth, of a revolving shaft, a disk carried thereon, vertically-movable pins carried upon said disk, levers extending above said disk, and means, substantially such as described, for actuating said levers at will, a shaft extending beneath said disk, a movable wedge or block secured to one end of said shaft, and a forked arm secured to said shaft and arranged to be engaged by one or the other, of said pins, and to thereby rock said shaft and to place said wedge in the path of one or the other of said wheels.

6. The combination, substantially as hereinbefore set forth, of two pawls, two toothed wheels respectively actuated by said pawls, and a movable block or wedge acting to pre vent one or the other of said pawls from engaging the teeth of the corresponding wheel, and means, substantially such as described, for actuating said block or wedge.

7. The combination, substantially as here inbefore set forth, of a longitudinally-movable papercarriage, two segments of wheels upon which said carriage is supported in a constant horizontal plane, longitudinal racks, and teeth formed upon said wheels meshing with the teeth of said racks.

8. The combination, substantially as hereinbefore set forth, of a movablepaper carriage, two or more toothed segments of wheels upon which said carriage is supported in a constant horizontal plane, longitudinal racks upon which said segments of Wheels rest, a force tending to advance said carriage, a rack-bar extending longitudinally upon said carriage, a pinion engaging said rack-bar, an electro' magnet, its armature and armature-lever acting through the instrumentality of said pinion and rack-bar to control the movements of said carriage in response to said force.

9. The combination, substantially as hereinbefore set forth,of a movable paper-carriage, two toothed segments of wheels for supporting said carriage, rack-bars with which said segments engage, an electro-magnet, its annature and armature-lever for imparting to said carriage a step-by-step motion .in a given direction and in oppositon to a force exerted in the opposite direction, means, substantially such as described, for retaining the carriage in its advanced position, anda second electromagnet brought into action at will for releasing said carriage from said retaining and advancing devices.

10. The combination, substantially as hereinbefore set forth, of a movable paper-carriage,

a weight or other device tending to impel said vcarrlage 1n one direction, a pinion and rackbar for advancing said carriage in opposition to said weight, a pawl and detent for controlling the position of said pinion, and a cam" automatically operated by a stop carried upon said carriage at one extreme of its excursion,

to release said pinion from said pawl and detent, and a second stop arranged to operate said cam at the opposite extreme of its excursion, to allow said pawl and detent to again act upon said pinion.

11. The combination, substantially as hereinbefore set forth, with the paper-feeding roller of a longitudinally movable papercarriage, of an angular shaft extending therefrom, a toothed wheel loosely mounted upon said shaft, and means, substantially such as described, for actuating said toothed wheel and thereby rotating said paper-feeding roller at any point in the excursion of said carriage.

12. The combination, substantially as here inbefore set forth, of the annular series of type, the supporting-shaft, the disk carried onsaid shaft, the vertically-movable pins carried upon said disk, the electro-magnets, the shunt-levers for causing either of said electromagnets to be vitalized through the instrumentality of said pins, and means, substantially such as described,for actuating said nus. 1 13. The combination, substantially as here-' inbefore set forth, of a series of type, one or more levers for actuating the type of said se ries, the toothed wheels for actuating said levers, the pawls for revolving said wheels, a lever for actuating said pawls, and an electromagnet and its armature for actuating the last-named lever.

14. In an electrical type-writer or printinginstrument, the combination, substantially as described, of the series of independentlymovable type, the electro-magnet 1 for actuating same, the circuit-transferring device, and

normally included in the circuit of said motor, and an armature applied thereto, means, substantially such as described, for arresting the movement of said motor in any required position, a circuit-transferring device operated by the movement of said armature when said motor is arrested to substitute for the circuit through said motor a circuit through said printing-magnet, and means,

substantially such as described, for re-establishing the normal connections through said motor after said printingmagnet has been vitalized.

16. The combination, substantially as here inbefore set forth, of a motor-shaft, a pinion loosely mounted upon said shaft and having a IIO yielding connection therewith, an annular series of. type, a shaft for supporting the same,

, porting-shaft for said type, an electro-magnetic motor, its shaft, a mechanical connection between said shafts, and a circuit-controller for said motor, consisting of a series of contact-springs, a series of contact-points re-- spectively applied to said springs and electrically connected with the electro-magnets comprised in said motor, and a series of cams carried upon said motor-shaft, whereby said springs are successively placed in contact with their respective contactpoints.

18. The combination, substantially as hereinbefore set forth, of a paper-carriage, a series of type, a revolving shaft upon which said type are supported, a pin or stop fixed upon said shaft, a movable pin normally held out of the path of said fixed pin, a- Wedgeshaped arm carried upon said paper-carriage, and acting when said carriage is moved into a given position to force said movable pin into the path of said fixed pin or stop.

19. The combination, substantially as hereinbefore set forth, of aseries of type, a revolving shaft upon which said type are carried, a pin or stop fixed to said shaft, a movable pin normally held out of the path of said fixed pin or stop, a wedge-shaped arm, and means, substantially such as described, for causing said arm to place said movable pin in the path of said fixed pin or stop, a series of levers, substantially such as described, for moving said wedge-shaped arm out of engagement with said movable pin, and means, substantially such as described, for actuating said levers.

20. In a type-writer or printing-instrument,

a revolving type-shaft, a pin or stop moving with said shaft, a movable pin normally held out of the path of said stop, a paper-carriage, an arm or cam moving with said carriage, and acting, when said carriage is moved into a given position, to force said movable pin into the path of said stop, and to thereby arrest the motion of said shaft in a predetermined position, and means, substantially such as described, for simultaneously moving said arm or cam out of engagement with said movable.

is arrested, and for retaining the same in a position dependent upon the position in which said shaft is arrested.

22. The combination, substantially as hereinbefore set forth, with a series of type and its supporting-shaft, of a revolving shaft, a toothed wheel rigidly mounted upon said revolving shaft, a detent automatically actuated for arresting the movement of said wheel and revolving shaft, a scape-wheel loosely mounted upon said revolving shaft, means, substantially such as described, for limiting the independent revolution of said scapewheel relative to said revolving shaft, mechanism for communicating the movement of said scape-wheel to said series of type, and an automaticallyactuated escapement-arm engaging said scape-wheel.

23. The combination, substantially as hereinbefore set forth, of a battery, an electromagnetic motor, means, substantially such as described, for transmitting electric currents through the electro-magnets of said motor in succession, an electro-magnet acting, when vitalized, both to interrupt the circuit through said motor and to arrest its movement.

24. In a typewriter or printingmacl1ine,a battery, a series of circuitclosing keys, a segmental ring having its respective conducting-segments electrically connected with the anvils of said keys, a revolving type-shaft, a contactbrush carried thereon and caused by its movements to beplaced in connection with said condncti ng-segments in succession, whereby the circuit of said battery is completed through any one of said keys which is depressed when said brush makes contact with the corresponding conducting segment, 'an clectro-magnet included in the circuit thus completed,and acting, when vitalized, to arrest the movement of said shaft and contact-brush, a 'circuit'interrupter included in the circuit with said electro-magnet, and means, substantially such as described, for actuating said interrupter.

25. The combination, substantially as hereinbefore set forth, of a battery, an electromagnet included in the circuit of said battery, a series of keys, a segmental contact-ring having its condnctingsegments respectively connected with said keys, a contact-brush acting to complete the circuit of said battery through any key which is depressed, the corresponding contact-segment and the electro-magnet, and

a circuit-interrupter placed in said circuit and acting to automatically interrupt the same independently of the movement of said key. 26. The combination, substantially as hereinbefore set forth, of a motor-battery, an elec: tro-magnetic motor actuated bycurrents from said battery, a series of keys, and devices, substantially such as described, co-operating with said keys to arrest the movement of said motor in any required position,a pole-changin g device actuated by the movements of said motor, a second battery having its circuit IIO completed through said polechanging device, In testimony whereof I have hereunto suba series of type controlled by the movements scribed my name this 9th day of April, A. D. 10 of said motor and said pole-changing device, 1883.

a printing -magnet for actuating any of said type, and an electro-magnet acting to auto- ROBERT SHEEHY' niatically place said printing-magnet in the Witnesses: circuit of said second battery when said motor DANIEL W. EDGEooMB, is arrested. CHARLES A. TERRY.

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